Seat structure and vehicle

Abstract

The utility model provides a seat structure and a vehicle. The seat structure comprises a seat base, a seat cushion rotationally arranged on the seat base and a turnover mechanism arranged on the seat cushion. The turnover mechanism comprises a driving part rotationally arranged on the seat cushion, the driving part is provided with a telescopic driving end, the driving end is rotationally connected with the seat base, and the driving part drives the driving end to stretch out and draw back and can drive the seat cushion to turn over relative to the seat base. According to the seat structure, the turnover mechanism is arranged on the seat cushion, the driving part of the turnover mechanism is rotationally arranged on the seat cushion, and the driving end of the turnover mechanism is rotationally connected with the seat base, so that the turnover of the seat cushion is facilitated, and the utilization rate of the internal space of the seat cushion is also improved; compared with a traditional scheme that the turnover mechanism is arranged on the seat base, the appearance of the seat rear trim panel and the longitudinal space and the height space of the seat assembly do not need to be sacrificed, the space requirement of the seat is reduced, and the space utilization rate of the whole vehicle is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, and in particular to a seat structure. Meanwhile, the utility model also relates to a vehicle provided with the seat structure. Background Art

[0002] A theater-style seat is a seat whose seat cushion can be folded upward around the rear end rotating axis. Its function is to place things in front of the seat after the seat cushion is folded upward, or to allow the seat to slide forward more, thereby maximizing the luggage compartment space behind the seat and increasing the front or second row seating space.

[0003] At present, most theater-style seats have motors placed on the side panels of the seat base, and the seat cushion is rotated around the rotation axis by driving force to achieve the function. However, this model requires a high space for the seat base, and the seat needs to be long in depth, which will affect the utilization of the space in the car. It is also prone to problems such as exposed mechanisms, interference between the motor and the seat cushion and the foam body of the seat back. Usually, the flip function of the seat cushion can only be achieved by sacrificing the appearance of the seat rear trim, and sacrificing the foam shape or foam thickness, which seriously affects the comfort and refinement of the seat. Utility Model Content

[0004] In view of this, the utility model aims to provide a seat structure to overcome the disadvantages of arranging a driving part on a seat base in the prior art and facilitate the flipping of a seat cushion.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A seat structure includes a seat base, a seat cushion rotatably arranged on the seat base, and a flipping mechanism arranged on the seat cushion; the flipping mechanism includes a driving part rotatably arranged on the seat cushion, the driving part has a retractable driving end, the driving end is rotatably connected to the seat base, the driving part drives the driving end to retract and retract, and can drive the seat cushion to flip relative to the seat base.

[0007] Furthermore, the seat base includes a base body and a connecting member arranged on the base body, the connecting member includes an axis body portion and a rod body portion extending radially along the axis body portion; the axis body portion is connected to the base body, and the axis body portion constitutes a rotating shaft of the seat cushion, and the driving end is rotatably connected to the rod body portion.

[0008] Furthermore, the seat base includes a connecting plate screwed to the base body; one end of the shaft body portion is inserted into the connecting plate and is welded to the connecting plate.

[0009] Furthermore, a limiting portion is provided between the seat base and the seat cushion, and the limiting portion is used to limit the flipping angle of the seat cushion during the storage process.

[0010] Furthermore, the limiting portion includes an arcuate groove arranged on the seat base, and a limiting column arranged on the seat cushion; the arcuate groove is centered on the rotating axis of the seat cushion, and the limiting column is inserted into the arcuate groove and can abut against one end of the arcuate groove to limit the flipping angle of the seat cushion.

[0011] Furthermore, the seat cushion is provided with a limit block, which can abut against the seat base to limit the flipping angle of the seat cushion during the unfolding process. Furthermore, the driving unit includes a screw motor rotatably arranged on the seat cushion, and a sleeve screwed to the screw of the screw motor; the driving end is composed of the screw and the sleeve.

[0012] Furthermore, the seat cushion includes a cushion frame and a foam body arranged on the cushion frame; the driving part is arranged on the cushion frame and is shielded by the foam body.

[0013] Furthermore, the seat cushion frame includes relatively arranged longitudinal rods, and connecting beams connected to the rear ends of the longitudinal rods on each side, and each connecting beam has a cavity extending along its own length direction; a connecting tube and a self-lubricating sleeve connected to the connecting tube are inserted into the connecting beam on one side along the width of the vehicle, and the self-lubricating sleeve is rotatably connected to the seat base; and / or, the connecting beam on the other side is rotatably connected to a self-lubricating sleeve provided on the seat base via a fastener.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The seat structure described in the utility model is not only conducive to the flipping of the seat cushion, but also conducive to improving the utilization rate of the internal space of the seat cushion by setting the flip mechanism on the seat cushion, and the driving part of the flip mechanism is rotatably set on the seat cushion, and is rotatably connected to the seat base through the retractable driving end, which is not only conducive to the flipping of the seat cushion, but also conducive to improving the utilization rate of the internal space of the seat cushion. Compared with the traditional solution of setting the flip mechanism on the seat base, the seat does not need a long depth, which can reduce the space occupied by the seat. Moreover, this structure does not need to sacrifice the appearance of the seat rear trim, the longitudinal space and height space of the seat assembly, nor does it need to reduce the length of the seat cushion, which is conducive to reducing the space requirement of the seat and improving the space utilization rate of the whole vehicle, thereby facilitating the improvement of the comfort and refinement of the seat structure.

[0016] In addition, the setting of the shaft body part in the connecting piece is conducive to the rotation setting of the seat cushion on the base body, and the rod body part is rotatably connected to the driving end, which facilitates the rotation connection of the driving end of the driving part with the base body. The connecting plate is screwed to the base body, and the shaft body part is welded to the connecting plate, which can not only improve the connection firmness between the seat cushion and the connecting plate (that is, the base body), effectively reduce the noise and noise, but also facilitate the disassembly and assembly between the seat cushion and the base body.

[0017] Secondly, the limit part is set to limit the flipping angle of the seat cushion, which is conducive to keeping the seat cushion at the preset flipping angle after flipping, and can prevent the seat cushion from interfering with the backrest due to excessive flipping. The arc groove and the limit column have a simple structure and are easy to process and form, and the two have a good limiting effect. By setting a limit block on the seat cushion that abuts against the base, the stability of the seat cushion in the unfolded state can be improved, which can improve the support effect for passengers.

[0018] In addition, the product of the lead screw motor is mature, and the lead screw and the sleeve are screwed together to form the driving end, which is conducive to the extension and contraction of the driving end, thereby facilitating the flipping of the seat cushion and folding the seat cushion to any working angle. The driving part is set on the seat cushion frame and is shielded by the foam body, which is conducive to preventing the exposure of the driving part, thereby further improving the aesthetics and refinement of the seat structure.

[0019] In addition, the longitudinal rod and the connecting beam are arranged, and the self-lubricating sleeve rotatably connected to the seat base is connected to the connecting pipe inserted in the connecting beam on one side, which not only facilitates the arrangement of the self-lubricating sleeve, but also increases the contact area between the seat cushion and the self-lubricating sleeve, thereby facilitating the smooth rotation of the seat cushion on the seat base. The connecting beam on the other side is rotatably connected to the self-lubricating sleeve on the seat base through a fastener, which is also conducive to realizing the rotational installation of the seat cushion on the seat base, thereby facilitating the flipping of the seat cushion.

[0020] In addition, another object of the present invention is to provide a vehicle, on which the seat structure as described above is provided.

[0021] The vehicle described in the utility model is beneficial to improving the effect of the vehicle seat flipping by providing the seat structure as described above, thereby helping to improve the riding comfort of the vehicle and the space utilization rate of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0023] Figure 1This is a schematic diagram of the structure of the seat according to the embodiment of the utility model in a use state;

[0024] Figure 2 It is a structural schematic diagram of the seat structure according to an embodiment of the utility model in a stowed state at a first viewing angle;

[0025] Figure 3 It is a structural schematic diagram of the seat structure according to an embodiment of the utility model in a storage state at a second viewing angle;

[0026] Figure 4 It is a front view of the flipping mechanism described in the embodiment of the utility model in the use state;

[0027] Figure 5 It is a structural schematic diagram of the flipping mechanism according to the embodiment of the utility model in a use state at one viewing angle;

[0028] Figure 6 It is a structural schematic diagram of the flip mechanism according to the embodiment of the utility model in another viewing angle when in use;

[0029] Figure 7 It is a structural schematic diagram of the flip mechanism according to an embodiment of the utility model in a storage state at one viewing angle;

[0030] Figure 8 It is a structural schematic diagram of the flip mechanism according to an embodiment of the utility model in the storage state at another viewing angle;

[0031] Fig. 9 This is a schematic structural diagram of the first connecting beam according to an embodiment of the utility model;

[0032] Fig.10 This is a schematic diagram of the structure of the connecting member and the connecting plate according to an embodiment of the utility model;

[0033] Fig.11 This is a schematic diagram of the structure of the connecting piece according to an embodiment of the utility model;

[0034] Fig.12 It is a structural schematic diagram of the second connecting beam and the same side plate according to an embodiment of the utility model at one viewing angle;

[0035] Fig.13 It is a schematic structural diagram of the second connecting beam and the same side plate described in an embodiment of the utility model from another perspective.

[0036] Description of reference numerals:

[0037] 1. Base body; 2. Seat cushion frame; 3. Seat back; 4. Screw motor; 5. Sleeve; 6. Connector;

[0038] 100, first connecting rod; 101, side plate; 102, arc groove; 103, connecting plate; 104, limiting plate;

[0039] 200, second connecting rod; 201, longitudinal rod; 202, first connecting beam; 203, second connecting beam; 204, supporting rod; 205, cross bar; 206, longitudinal rod; 207, front beam; 208, rear beam; 209, mounting frame; 210, limiting column; 211, limiting block; 212, connecting pipe; 213, fastener; 214, cushion block;

[0040] 300, third connecting rod;

[0041] 401, screw;

[0042] 501, connecting part; 502, screw connection part;

[0043] 601, rod body part; 602, shaft body part; 603, connecting block; 604, first self-lubricating bushing; 605, limiting ring; 606, connecting column. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0045] In the description of the utility model, it should be noted that the directional words such as "up, down, left, right, front, and back" used in the present embodiment are defined based on the up-down direction, left-right direction, and front-back direction of the automobile. Among them, the up-down direction of the automobile is also the height direction of the automobile (Z direction), the front-back direction of the automobile is also the length direction of the automobile (X direction), and the left-right direction of the automobile is also the width direction of the automobile (Y direction). In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0047] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0048] This embodiment relates to a seat structure, which is based on the prior art that the driving part for flipping the seat cushion is arranged on the seat base, which requires a large space for the seat base, and needs to sacrifice the appearance of the rear trim panel or the luggage compartment space or the foaming length of the seat cushion, thereby affecting the improvement of the seat refinement, comfort and interior space problems, as well as the problem that the driving part is easily exposed and leads to poor refinement. The seat structure overcomes the shortcomings of arranging the driving part on the seat base by optimizing the structure and arrangement of the flipping mechanism in the seat structure, and is conducive to the flipping of the seat cushion.

[0049] In terms of overall structure, the seat structure of this embodiment includes a seat base, a seat cushion rotatably arranged on the seat base, and a flip mechanism arranged on the seat cushion. The flip mechanism includes a driving unit rotatably arranged on the seat cushion. The driving unit has a retractable driving end, which is rotatably connected to the seat base. The driving unit drives the driving end to retract, which can drive the seat cushion to flip relative to the seat base.

[0050] The seat structure described in this embodiment, by setting the flip mechanism on the seat cushion, and the driving part of the flip mechanism is rotatably set on the seat cushion, and is rotatably connected to the seat base through the retractable driving end, not only facilitates the flipping of the seat cushion, but also helps to improve the utilization rate of the internal space of the seat cushion. Compared with the traditional solution of setting the flip mechanism on the seat base, the seat does not need a long depth, which can reduce the space occupied by the seat. Moreover, this structure does not need to sacrifice the appearance of the seat rear trim panel, the longitudinal space and height space of the seat assembly, which helps to reduce the space requirement of the seat and improve the space utilization rate of the whole vehicle, thereby helping to improve the comfort and refinement of the seat structure.

[0051] Based on the above overall introduction, the seat cushion in this embodiment has a use state for sitting due to the setting of the flip mechanism, and a storage state in which it is flipped upward to be stored in the front side of the seat back 3. Among them, the seat structure in the use state is as follows: Figure 1 As shown in the figure, the seat structure in the stowed state is as follows Figure 2 and Figure 3 as shown in .

[0052] like Figures 4 to 6 As shown in , the seat base includes a base body 1, and a connecting member 6 arranged on the base body 1, and the connecting member 6 includes an axial body portion 602 and a rod body portion 601 extending radially along the axial body portion 602. The axial body portion 602 is connected to the base body 1, and the axial body portion 602 constitutes the rotating shaft of the seat cushion, and the driving end is rotatably connected to the rod body portion 601. Among them, the setting of the axial body portion 602 in the connecting member 6 is conducive to the rotation setting of the seat cushion on the base body 1, and the rod body portion 601 is rotatably connected to the driving end, which facilitates the rotatable connection of the driving end of the driving part with the base body 1.

[0053] In terms of specific structure, Figure 5 and Fig.10 and Fig.11 As shown in the figure, the base body 1 includes side panels 101 arranged on the left and right sides, and the seat cushion is rotatably arranged between the two side panels 101. One end of the shaft body part 602 is connected to the side panel 101 arranged on the same side, and the other end of the shaft body part 602 is connected to the rod body part 601. The shaft body part 602 and the rod body part 601 can be Fig.11 The two components shown in the figure are fixedly connected together by welding.

[0054] In order to improve the connection effect of the rod body part 601 on the shaft body part 602, a connecting column 606 is provided at the end of the shaft body part 602 and is convexly arranged along its own axis, and a radially convex limiting ring 605 is provided at one end of the connecting column 606 connected to the rod body part 601. An insertion hole for inserting the connecting column 606 is provided at the end of the rod body part 601. The rod body part 601 can abut against the limiting ring 605, thereby ensuring that the rod body part 601 is installed in place. Here, the connection method between the shaft body part 602 and the rod body part 601 is simple and easy to arrange and implement. Of course, in the specific implementation, the shaft body part 602 and the rod body part 601 can also be integrally formed, and at this time, the use requirements of the connecting member 6 can also be met.

[0055] As a preferred embodiment, Figure 1 and Figure 6 As shown in the figure, the seat base includes a connecting plate 103 screwed to the base body 1, and one end of the shaft body 602 is inserted into the connecting plate 103 and welded to the connecting plate 103. The connecting plate 103 is screwed to the base body 1, and the shaft body 602 is welded to the connecting plate 103, which not only improves the connection firmness between the seat cushion and the connecting plate 103 (that is, the base body 1), effectively reduces the noise and noise, but also facilitates the disassembly and assembly between the seat cushion and the base body 1.

[0056] In terms of detailed structure, the connecting plate 103 is installed on the inner side of the side plate 101 on the same side, and the bolts are passed through the side plate 101 and the connecting plate 103 and then screwed with the nuts, so that the connecting plate 103 is installed on the side plate 101. Here, the installation method of the connecting plate 103 is simple and easy to operate. Of course, the bolts can also be directly screwed with the connecting plate 103 after passing through the side plate 101, and no nuts are required. Of course, in addition to the bolts used for connection in this embodiment, other detachable connection structures can also be used to connect with the side plate 101, as long as the use requirements are met.

[0057] To further improve the connection effect between the shaft portion 602 and the connecting plate 103, as Fig.10 and Fig.11As shown in the figure, a square connecting block 603 is provided at one end of the shaft body part 602 facing the connecting plate 103, and a through-set and square connecting hole is provided on the connecting plate 103 and the side plate 101. The connecting block 603 passes through the connecting hole and is welded to the connecting plate 103, so that the shaft body part 602 cannot rotate relative to the connecting plate 103.

[0058] In addition, a through hole is provided on the side plate 101 for the connection block 603 to pass through, which is conducive to further improving the arrangement effect of the connection block 603. Of course, in the specific implementation, the connection block 603 and the connection hole can be in other shapes besides square, as long as the connection of the connection block 603 on the connection plate 103 can be achieved. The setting of the connection plate 103 in this embodiment can also increase the connection area between the connection member 6 and the base body 1, thereby improving the setting stability of the connection member 6, and further facilitating the stability of the shaft body part 602 when used as the rotating shaft of the seat cushion, which can further prevent the seat cushion from generating loose noise during the rotation process, and is also conducive to the arrangement and connection of the shaft body part 602 on the base body 1.

[0059] As a preferred embodiment, Figure 1 and Figure 2 As shown in the figure, the seat cushion frame 2 in this embodiment includes longitudinal bars 201 arranged opposite to each other, and connecting beams connected to the rear ends of the longitudinal bars 201 on each side, and each connecting beam has a cavity extending along its length direction. A front beam 207 is connected between the front ends of the longitudinal bars 201 on both sides, and a rear beam 208 is connected between the rear ends of the connecting beams on both sides. With such an arrangement, the outer contour of the seat cushion frame 2 is in the shape of a "mouth", which is not only convenient for arrangement and implementation, but also has good structural strength.

[0060] In specific implementation, a connecting pipe 212 and a self-lubricating sleeve connected to the connecting pipe 212 are inserted into the connecting beam on one side along the width of the vehicle, and the self-lubricating sleeve is rotatably connected to the seat base, and the connecting beam on the other side is rotatably connected to the self-lubricating sleeve provided on the seat base through a fastener 213. Among them, the connecting beam includes an outer plate and an inner plate that are connected by inner and outer buckles, and the cavity is specifically formed between the inner plate and the outer plate. The use of a self-lubricating sleeve here can not only improve the rotation smoothness of the seat cushion, but also help reduce the number of maintenance times, thereby reducing maintenance costs.

[0061] To facilitate the distinction, the description Figure 1 As shown in the figure, the connecting beam provided with the connecting pipe 212 is called the first connecting beam 202, and the connecting beam on the other side is called the second connecting beam 203. The self-lubricating sleeve connected to the connecting pipe 212 is also called the first self-lubricating sleeve 604, and the self-lubricating sleeve connected to the fastener 213 is called the second self-lubricating sleeve.

[0062] The connecting tube 212 in this embodiment is arranged through the inner plate and the outer plate, and the connecting tube 212, the inner plate and the outer plate are welded and connected. The first self-lubricating sleeve 604 is arranged on the inner side of the connecting tube 212, and the shaft body portion 602 is arranged in the first self-lubricating sleeve 604, so that when the seat cushion is flipped, the first connecting beam 202 can rotate with the shaft body portion 602 as the rotating axis. In this embodiment, by setting the connecting tube 212, and the first self-lubricating sleeve 604 is arranged in the connecting tube 212, compared with the solution in which the self-lubricating sleeve is directly connected to the first connecting beam 202, it is beneficial to increase the contact area between the first connecting beam 202 and the first self-lubricating sleeve 604, thereby helping to improve the stability of the seat cushion frame 2 during rotation.

[0063] like Fig. 9 and Fig.10 As shown in , both ends of the first self-lubricating sleeve 604 are provided with flanges that are turned outward, and each flange abuts against the end surface of the connecting tube 212 at the same end, thereby preventing the first self-lubricating sleeve 604 from moving along the axial direction of the connecting tube 212, thereby facilitating the stability and reliability of the first self-lubricating sleeve 604 in use. In addition, the flanges arranged toward the rod body portion 601 abut against the other side of the limit ring 605 relative to the rod body portion 601, and such an arrangement is also conducive to improving the connection stability among the shaft body portion 602, the first self-lubricating sleeve 604 and the connecting tube 212.

[0064] It should be noted that, in this embodiment, Figure 5 As shown in FIG. 1 , a first gap is formed between the connecting plate 103 and the outer side of the first connecting beam 202, and a portion of the connecting block 603 in the connected state is exposed and arranged in the first gap. Here, the first gap is specifically set as a movement gap reserved for the upper cover of the seat cushion, so as to ensure the effect of the seat cushion when flipping.

[0065] like Fig.12 and Fig.13 As shown in the figure, the connecting beam on the other side (i.e., the second connecting beam 203) is rotatably connected to the second self-lubricating sleeve on the seat base through a fastener 213, which is also conducive to the rotational installation of the seat cushion on the seat base, thereby facilitating the flipping of the seat cushion. The second self-lubricating sleeve is located between the second connecting beam 203 and the side plate 101 on the same side, which is conducive to the arrangement and installation of the second self-lubricating sleeve.

[0066] The fastener 213 is specifically a step bolt passing through the second lubricating sleeve, and a nut threadedly connected to the step bolt is provided on the inner side of the second connecting beam 203. The fastener 213 has a simple structure and is convenient for serving as a rotating shaft of the seat cushion, thereby improving the stability of the seat cushion during flipping.

[0067] like Fig.12As shown in , a second gap is formed between the second connecting beam 203 and the side plate 101 on the same side, and a cushion block 214 located in the second gap is disposed on the outer sleeve of the second self-lubricating shaft sleeve. The cushion block 214 is cylindrical and welded to the side plate 101 to form a whole. The second self-lubricating shaft sleeve passes through the whole, and one end of the second self-lubricating shaft sleeve is riveted to the side plate 101, and the other end is riveted to the cushion block 214. The cushion block 214 is provided to reduce the step height of the side plate 101, and when the seat structures in this embodiment are arranged side by side, it is preferred that the flip mechanisms in the two adjacent seat structures are arranged adjacent to each other. Thereby, the side plate 101 can be applied to two seats arranged side by side on the left and right at the same time, which is conducive to reducing the production cost, and the cushion block 214 has a simple structure and is easy to arrange and implement.

[0068] As a preferred embodiment, the seat cushion frame 2 in this embodiment includes a support rod 204 disposed between the longitudinal rods 201 on both sides, a mounting frame 209 protruding backward is disposed on the support rod 204, and the driving unit is rotatably connected to the mounting frame 209. The support rod 204 is provided here to improve the structural strength of the seat cushion frame 2, and the provision of the mounting frame 209 on the support rod 204 is conducive to the arrangement of the driving unit 4 on the seat cushion frame 2.

[0069] like Figure 1 and Figure 8 As shown in FIG. 2 , the support rod 204 is connected to the front end of the longitudinal rods 201 on both sides and is arranged at intervals behind the front beam 207. The mounting frame 209 includes two mounting plates connected to the ends of the support rod 204 at intervals along the width direction of the seat cushion. The end of the driving unit arranged toward the front of the vehicle is located between the two mounting plates and is rotatably arranged on the mounting frame 209 via a connecting shaft passing through the driving unit and the two mounting plates. The mounting frame 209 has a simple structure and is easy to arrange and implement the support rod 204, and the driving unit is rotatably installed on the mounting frame 209.

[0070] In specific implementation, the driving part can be an existing device capable of outputting linear power, such as a linear motor, a cylinder, a gas spring or a lead screw motor 4. As a preferred implementation, the driving part in this embodiment includes a lead screw motor 4 rotatably arranged on the seat cushion, and a sleeve 5 threadedly connected to the lead screw 401 of the lead screw motor 4, and the driving end is composed of the lead screw 401 and the sleeve 5.

[0071] Here, the product of the lead screw motor 4 is mature, and the lead screw 401 is screwed with the sleeve 5 to form a driving end, which is conducive to the extension and contraction of the driving end, thereby facilitating the flipping of the seat cushion. Figure 7As shown in the figure, the sleeve 5 has a threaded portion 502 for threadingly connecting with the lead screw 401, and a connecting portion 501 for rotatably connecting with the seat base. The threaded portion 502 is cylindrical and the connecting portion 501 is flat, so as to improve the connection effect between the sleeve 5 and the lead screw 401 and the connecting member 6.

[0072] Specifically, the free end of the connecting portion 501 on the sleeve 5 is hingedly connected to the free end of the rod portion 601 of the connecting member 6. Considering that the sleeve 5 and the lead screw 401 are located inside the rod portion 601, in order to improve the connection effect between the rod portion 601 and the connecting portion 501, the rod portion 601 is bent and arranged in a step shape. The free end of the connecting portion 501 is located inside the free end of the rod portion 601, and is hingedly connected via a hinge shaft passing through the two.

[0073] like Figure 4 As shown in , the driving end of the driving unit, the seat cushion and the rod body portion 601 can constitute a three-link mechanism, wherein the driving end (the lead screw 401 and the sleeve 5 on the lead screw motor 4) constitute the first link 100, the rod body portion 601 constitutes the second link 200, and the seat cushion located between the shaft body portion 602 of the connecting member 6 and the rotating shaft of the driving unit constitutes the third link 300. Since the lengths of the second link 200 and the third link 300 remain unchanged, when the driving end is extended and retracted, the third link 300 can be flipped around the rotating shaft (that is, the shaft body portion 602 of the connecting member 6) as the center, so that the seat cushion can be flipped between the storage state and the use state. Here, the three-link mechanism is used to realize the flipping of the seat cushion, which has the advantages of simple structure and low cost, and is conducive to the arrangement and implementation of the driving unit.

[0074] Among them, when the seat cushion is in use, such as Figure 7 and Figure 8 As shown in , the driving end is in a retracted state, and the length of the driving end formed by the sleeve 5 and the lead screw 401 is the shortest. When the driving unit drives the lead screw 401 to rotate in the forward direction, the sleeve 5 moves in a direction away from the driving unit, thereby extending the driving end, and being able to be turned upward around the shaft portion 602 to the storage state through the rod portion 601 in cooperation with the seat cushion. When the seat cushion needs to be used, the driving unit drives the lead screw 401 to rotate in the reverse direction, and the sleeve 5 moves in a direction close to the driving unit, thereby shortening the driving end, and being able to be turned downward around the shaft portion 602 to the storage state through the rod portion 601 in cooperation with the seat cushion. Figure 5 and Figure 6 The usage status in .

[0075] As a preferred embodiment, a limiter is provided between the seat base and the seat cushion, and the limiter is used to limit the flipping angle of the seat cushion during storage. The limiter is provided to limit the flipping angle of the seat cushion, which is conducive to keeping the flipped seat cushion at a preset flipping angle and preventing the seat cushion from interfering with the seat back 3 due to excessive flipping.

[0076] In terms of detailed structure, Figure 2 As shown in FIG. 1 , the limiting part is arranged on the same side as the driving part, and the limiting part includes an arc groove 102 provided on the seat base, and a limiting post 210 provided on the seat cushion. The arc groove 102 is centered on the rotation axis of the seat cushion, and the limiting post 210 is inserted into the arc groove 102 and can be engaged with one end of the arc groove 102 (i.e. Figure 2 The arc groove 102 and the limiting column 210 have simple structures, are easy to process and form, and the limiting effect of the cooperation between the two is good.

[0077] Here, the arc groove 102 is arranged on the side plate 101, and the limiting column 210 is arranged on the outside of the connecting beam. The arc groove 102 and the limiting column 210 have simple structures, are easy to process and form, and the limiting effect of the two is good. Figure 2 As shown in FIG. 1 , when the limiting post 210 abuts against the top end of the arc-shaped groove 102 , the seat cushion is flipped upward and is in a storage state.

[0078] In order to prevent the limiting column 210 and the groove wall of the arc groove 102 from making abnormal noise due to collision, a buffer layer can also be provided on the outer peripheral wall of the limiting column 210. It can be understood that in this embodiment, the positions of the arc groove 102 and the limiting column 210 can also be exchanged, that is, the arc groove 102 is set on the connecting beam, and the limiting column 210 is set on the side plate 101. In specific implementation, the positions of the arc groove 102 and the limiting column 210, the angle of the arc groove 102, etc. can be determined according to the use requirements.

[0079] In addition, as a preferred embodiment, Figure 2 As shown in , the seat cushion is provided with a limit block 211, which can abut against the seat base to limit the flip angle of the seat cushion during the unfolding process. In this embodiment, the limit block 211 can be provided to improve the stability of the seat cushion in the unfolded state, and the support effect for the passenger can be improved. In order to improve the use effect, the limit block 211 is preferably made of rubber to have a certain amount of compression, and at the same time, it can also prevent contact with the seat base to produce abnormal noise.

[0080] In this embodiment, the limit blocks 211 are two spaced apart at the bottom of the seat cushion along the left-right direction. Figure 2As shown in the figure, each limit block 211 is arranged at the bottom of the front end of the connecting beam, which is conducive to further improving the limit effect of the limit block 211. Figure 1 and Figure 2 As shown in the figure, corresponding to each limit block 211, a limit plate 104 with an upward convex setting is also provided on the seat base. When the seat cushion is in the unfolded state, the limit blocks 211 are respectively abutted against the corresponding limit plates 104, thereby achieving a better limit effect.

[0081] Specifically, by setting the limit block 211 and the limit plate 104, during the flipping process of the seat cushion, the limit block 211 can first contact the limit plate 104, and as the driving unit continues to move, the limit block 211 can be compressed until the limit block 211 reaches the maximum compression amount, and the driving unit stops moving, thereby effectively ensuring the stability of the seat cushion. It should be noted that in order to ensure that the limit block 211 and the limit plate 104 cooperate to limit the seat cushion flipped to the use state, the limit column 210 in the use state is spaced from the bottom end of the arc groove 102, rather than in abutment. In addition, the seat cushion in this embodiment includes a seat cushion frame 2, and a foam body provided on the seat cushion frame 2. The driving unit is provided on the seat cushion frame 2 and is shielded by the foam body. The driving unit is provided on the seat cushion frame 2 and is shielded by the foam body, which is conducive to preventing the exposure of the driving unit, thereby further improving the aesthetics and exquisiteness of the seat structure.

[0082] like Figure 1 As shown in the figure, the shaft part 602 of the connecting member 6 is blocked by the connecting beam, and the rod part 601 and the sleeve 5, the lead screw 401 and the lead screw motor 4 are all located on the inner side of the connecting beam, that is, located inside the seat cushion frame 2. When the foam body is arranged on the seat cushion frame 2, it can block the rod part 601 and the sleeve 5, the lead screw 401 and the lead screw motor 4, thereby avoiding exposure of the components and further enhancing the exquisiteness of the seat cushion.

[0083] To improve the structural strength and stability of the seat frame, Figure 1 As shown in , a plurality of longitudinal rods 206 spaced apart along the width direction of the seat cushion are connected between the support beam and the rear beam 208, a cross bar 205 is connected between the front ends of the two connecting beams, and the cross bar 205 is connected to the plurality of longitudinal rods 206 to form a frame body staggered in both directions, thereby improving the supporting performance of the seat cushion. In order to avoid interference between the cross bar 205 and the lead screw 401 and the sleeve 5, an arch convexly arranged at the end of the cross bar 205 is provided. At the same time, the arch on the cross bar 205 can also avoid interference between the foam body and the driving part. In addition, when specifically arranged, a sheet metal part can also be arranged above the driving part to shield the driving part. In this embodiment, the structure of the cross bar 205 and the longitudinal rod 206 is simple, easy to arrange and implement, and has a good use effect.

[0084] In this embodiment, when the seat cushion needs to be adjusted from the use state to the storage state, Figure 2 As shown in the figure, the screw motor 4 drives the screw 401 to rotate in the forward direction, and causes the sleeve 5 threadedly connected to the screw to move in the direction away from the driving part, thereby extending the driving end and causing the seat cushion to flip upward. At the same time, the limiting column 210 slides upward from the bottom end of the arc groove 102 until the limiting column 210 abuts against the top end of the arc groove 102. At this time, the seat cushion flips to the storage state.

[0085] It has been verified that there is no interference between the foam body on the seat cushion and the foam body on the seat back 3 after flipping over, so there is no need to reduce the thickness of the foam bodies on both, which helps to ensure the comfort of the seat structure.

[0086] When the seat cushion needs to be adjusted from the storage state to the use state, the screw motor 4 drives the screw 401 to rotate in the opposite direction, and the sleeve 5 on the screw rod moves in the direction close to the screw motor 4, thereby shortening the driving end and flipping the seat cushion downward until the seat cushion stops moving after the limit block 211 and the limit plate 104 are pressed tightly. At this time, the seat cushion flips to Figure 1 The usage status in .

[0087] The seat structure in this embodiment can make the seat cushion rotate around its own rotation axis by the extension and retraction of the driving end, which is conducive to simplifying the structure of the flip mechanism and can effectively reduce the production cost and weight. In addition, by arranging most of the structure of the flip mechanism in the seat cushion, and driving the seat cushion to rotate around its own rotation axis limited to the seat base by the extension and retraction of the driving end, it is conducive to fully utilizing the internal space of the seat cushion and reducing the longitudinal space required for the seat, thereby helping to reduce the volume of the seat structure and save the space for the seat structure layout. The seat structure is also conducive to meeting the layout requirements of different seats and is conducive to being applied to the seat structures of different models, thereby realizing the platformization of the seat structure.

[0088] In addition, the present embodiment also relates to a vehicle, on which the seat structure as described above is provided.

[0089] Specifically, the above-mentioned seat structure can be the rear seat of the vehicle. By adjusting the flip angle of the seat cushion through the flip mechanism, the space occupied by the seat structure in the front and rear direction of the vehicle in the storage state can be reduced. At this time, by sliding the rear seat forward, it is beneficial to increase the luggage compartment space behind the rear seat.

[0090] The vehicle described in this embodiment, by providing the seat structure as described above, is helpful in reducing the space occupied by the seat cushion after flipping over, and is helpful in improving the utilization rate of the space inside the vehicle, thereby having better practicality.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A seat structure, characterized in that: It includes a seat base, a seat cushion rotatably arranged on the seat base, and a flipping mechanism arranged on the seat cushion; The flipping mechanism includes a driving part rotatably arranged on the seat cushion, the driving part has a retractable driving end, the driving end is rotatably connected to the seat base, and the driving part drives the driving end to retract and retract, thereby driving the seat cushion to flip relative to the seat base.

2. The seat structure according to claim 1, characterized in that: The seat base comprises a base body (1), and a connecting member (6) arranged on the base body (1), wherein the connecting member (6) comprises an axial body portion (602) and a rod body portion (601) extending radially along the axial body portion (602); The shaft body part (602) is connected to the base body (1), and the shaft body part (602) constitutes the rotating shaft of the seat cushion, and the driving end is rotationally connected to the rod body part (601).

3. The seat structure according to claim 2, characterized in that: The seat base comprises a connecting plate (103) which is screwed to the base body (1); One end of the shaft body portion (602) is inserted into the connecting plate (103) and is connected to the connecting plate (103) by welding.

4. The seat structure according to claim 1, characterized in that: A limiting portion is provided between the seat base and the seat cushion, and the limiting portion is used to limit the flipping angle of the seat cushion during the storage process.

5. The seat structure according to claim 4, characterized in that: The limiting portion comprises an arc-shaped groove (102) provided on the seat base, and a limiting column (210) provided on the seat cushion; The arc groove (102) is centered on the rotation axis of the seat cushion, and the limiting column (210) is inserted into the arc groove (102) and can abut against one end of the arc groove (102) to limit the flipping angle of the seat cushion.

6. The seat structure according to claim 1, characterized in that: A limit block (211) is provided on the seat cushion, and the limit block (211) can abut against the seat base to limit the flipping angle of the seat cushion during the unfolding process.

7. The seat structure according to claim 1, characterized in that: The driving unit comprises a screw motor (4) rotatably arranged on the seat cushion, and a sleeve (5) threadedly connected to a screw (401) of the screw motor (4); The driving end is composed of the lead screw (401) and the sleeve (5).

8. The seat structure according to any one of claims 1 to 7, characterized in that: The seat cushion comprises a seat cushion frame (2), and a foamed body arranged on the seat cushion frame (2); The driving part is arranged on the seat cushion frame (2) and is shielded by the foam body.

9. The seat structure according to claim 8, characterized in that: The seat cushion frame (2) comprises longitudinal rods (201) arranged opposite to each other, and connecting beams connected to the rear ends of the longitudinal rods (201) on each side, wherein each connecting beam has a cavity formed therein extending along its length direction; A connecting pipe (212) and a self-lubricating sleeve connected to the connecting pipe (212) are inserted into the connecting beam on one side along the width of the entire vehicle, and the self-lubricating sleeve is rotatably connected to the seat base; and / or, the connecting beam on the other side is rotatably connected to the self-lubricating sleeve provided on the seat base via a fastener (213).

10. A vehicle, characterized in that: The vehicle is provided with the seat structure according to any one of claims 1 to 9.

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