Seat structure and vehicle

Abstract

The utility model provides a seat structure and a vehicle. The seat structure comprises a base, a seat cushion and a driving part, wherein the seat cushion is arranged on the base through a connecting mechanism, and the driving part is arranged on the base; the driving part is provided with a telescopic driving end, the driving end is connected with the connecting mechanism, when the driving end extends, the seat cushion can be folded through the connecting mechanism, and the driving part has a forward sliding stroke and an upward overturning stroke. According to the seat structure, when the driving end of the driving part extends, the connecting mechanism drives the seat cushion to turn upwards and move forwards, compared with the scheme that the seat cushion can only turn over in the prior art, the seat cushion has a large turning angle, meanwhile, the problem that the seat cushion is prone to interfering with a backrest when turned over can be solved, and the seat structure is simple in structure and convenient to use. Therefore, the shapes of the foaming bodies on the seat cushion and the backrest do not need to be changed, the thickness is not reduced, and the riding comfort of the seat structure is improved.

Description

Technical Field

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

[0002] A cinema-style seat is a seat whose seat cushion can be folded upward around a rotating axis at the rear end. 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.

[0003] The basic principle of current cinema-style seats is that the seat cushion rotates around the fixed rotation axis at the rear of the seat cushion to a set angle under driving force to realize the function. However, the predetermined angle of seat cushion rotation is greatly affected by the shape and thickness of the seat cushion foam and the backrest foam. In order to avoid interference between the seat cushion and the backrest foam after folding, usually the folding angle of the seat cushion, or the shape or thickness of the foam can only be sacrificed to realize the function, so the use effect is not ideal. Utility Model Content

[0004] In view of this, the utility model aims to provide a seat structure, which can enable the seat cushion to have a larger flip angle and avoid interference with the backrest.

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

[0006] A seat structure comprises a base, a seat cushion arranged on the base via a connecting mechanism, and a driving part arranged on the base; the driving part has a retractable driving end, the driving end is connected to the connecting mechanism, and when the driving end is extended, the seat cushion can be folded through the connecting mechanism, and has a sliding stroke for sliding forward and a flipping stroke for flipping upward.

[0007] Furthermore, the connecting mechanism includes a first connecting member and a second connecting member, and the first connecting member and the second connecting member are both hinged between the base and the seat cushion, and form a four-bar linkage with the base and the seat cushion; the first connecting member is located below the second connecting member, and the driving end is hingedly connected to the first connecting member.

[0008] Furthermore, a limiting portion is provided between the base and the first connecting member, and the limiting portion is used to limit the flipping angle of the seat cushion during the storage process.

[0009] Furthermore, the limiting portion includes an arc-shaped groove provided on the base, and a limiting column provided on the first connecting member;

[0010] The arc-shaped groove takes the hinge point between the first connecting member and the base as the center, and the limiting column is inserted into the arc-shaped groove and can abut against one end of the arc-shaped groove to limit the flipping angle of the seat cushion.

[0011] Furthermore, the first connecting member is a bent connecting plate, and has a first plate body and a second plate body arranged in a stepped shape;

[0012] The first plate is hingedly connected to the base, the second plate is hingedly connected to the seat cushion and the driving end, and the hinge points between the first connecting member and the base, the seat cushion and the driving end are arranged in a triangle.

[0013] Furthermore, a limit block is provided on the seat cushion, and the limit block can abut against the base to limit the flipping angle of the seat cushion during the unfolding process.

[0014] Further, the driving part includes a mounting frame having a mounting hole, and a driving body;

[0015] The mounting frame is fixedly connected to the base, a support groove is provided on the inner wall of the mounting hole, a portion of the driving body is inserted into the mounting hole, and has a protrusion embedded in the support groove, when the driving end is extended or retracted, the driving body can swing relative to the mounting frame with the protrusion as a support point.

[0016] Furthermore, the driving part includes a screw motor arranged on the mounting frame, and the driving end is composed of a screw of the screw motor.

[0017] Furthermore, the connecting mechanism is provided on both the left and right sides of the seat cushion, and the driving part is connected to the connecting mechanism on one side.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] The seat structure described in the present invention enables the seat cushion to flip upward and move forward through the connecting mechanism when the driving end of the driving part is extended. Compared with the solution in the prior art that the seat cushion can only flip, it is not only beneficial to increase the distance between the seat cushion and the backrest after flipping, but also allows the seat cushion to have a larger flipping angle. At the same time, it can also solve the problem that the seat cushion easily interferes with the backrest when flipping, and there is no need to change the shape of the foam body on the seat cushion and the backrest or reduce the thickness, thereby helping to improve the riding comfort of the seat structure.

[0020] In addition, the first connecting member and the second connecting member are both hinged between the base and the seat cushion, and form a four-bar linkage with the base and the seat cushion, and the driving end is hingedly connected to the first connecting member. When the driving end is extended, by driving the first connecting member to rotate, the other components in the four-bar linkage can be synchronized to make the seat cushion flip upward and move forward at the same time. The four-bar linkage here has a simple structure, is easy to arrange and implement, and has the advantage of low production cost.

[0021] The flipping angle of the seat cushion is limited by the limiting part, which is conducive to flipping the seat cushion to the best use state and storage state. The arc groove and the limiting column have simple structures, and the flipping angle of the seat cushion can be limited by the abutment between the limiting column and the end of the arc groove, which is not only easy to process and shape, but also has a good limiting effect.

[0022] In addition, the first plate and the second plate arranged in a stepped shape not only have good strength, but also facilitate the hinge connection between the first connector and the base and the seat cushion, and can also improve the connection firmness between the base and the seat cushion. The hinge points between the first connector and the base, the seat cushion and the driving end are arranged in a triangular shape, and the triangular structure can be used to improve the connection stability between the first connector and the driving end and the base.

[0023] 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 on the passenger. A support groove is set on the inner wall of the mounting hole of the mounting frame for the protrusion on the driving body to be embedded, which is conducive to the driving body swinging relative to the base with the protrusion as the support point when the driving end is extended and retracted, thereby meeting the use requirements of the seat cushion flipping and forward movement. The product of the screw motor in the driving part is mature, easy to arrange and implement, and has a good driving effect. Connecting mechanisms are set on both sides of the seat cushion, which is conducive to improving the stability of the seat cushion during flipping and movement.

[0024] In addition, another object of the present invention is to provide a vehicle, on which the seat structure as described above is provided.

[0025] The vehicle described in the utility model is provided with the above seat structure, which is beneficial to increasing the interior space of the vehicle after the seat cushion is turned over, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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:

[0027] Figure 1 It is a structural schematic diagram of a seat structure according to an embodiment of the utility model in a use state from one viewing angle;

[0028] Figure 2 A structural schematic diagram of the seat structure according to an embodiment of the utility model in another viewing angle when in use;

[0029] Figure 3 This is a structural schematic diagram of the seat structure according to the embodiment of the utility model in the use state without the mounting plate;

[0030] Figure 4 It is a partial structural schematic diagram of the seat structure according to the embodiment of the utility model in the use state;

[0031] Figure 5 It is a structural schematic diagram of the seat structure in the storage state according to the embodiment of the utility model;

[0032] Figure 6 It is a structural schematic diagram of the side plate, the first connecting member and the second connecting member according to an embodiment of the utility model;

[0033] Figure 7 This is a schematic diagram of the structure of the driving unit in the embodiment of the utility model when in use;

[0034] Figure 8 This is a schematic diagram of the structure of the driving unit in the storage state according to an embodiment of the utility model;

[0035] Fig. 9 This is a schematic diagram of the structure of the driving unit according to an embodiment of the utility model;

[0036] Fig.10 This is a schematic diagram of the structure of the driving unit in the embodiment of the utility model when in use;

[0037] Fig.11 This is a schematic diagram of the structure of the driving unit in the storage state according to an embodiment of the utility model;

[0038] Fig.12 It is a structural schematic diagram of the mounting frame described in an embodiment of the utility model.

[0039] Description of reference numerals:

[0040] 1. Base; 2. Seat cushion; 3. Backrest; 4. Driving unit; 5. Second connecting member; 6. First connecting member;

[0041] 101, mounting plate; 102, arc-shaped groove; 103, mounting frame; 1031, supporting groove; 1032, weight-reducing hole; 1033, mounting hole; 105, arc-shaped hole; 106, limiting plate;

[0042] 201, side plate; 202, limit block;

[0043] 401, lead screw; 402, connecting piece; 4022, self-lubricating sleeve; 403, inserting part; 4031, convex block; 4032, protrusion;

[0044] 501, Part I; 502, Part II;

[0045] 601, first plate body; 602, second plate body; 603, limiting column. DETAILED DESCRIPTION

[0046] 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.

[0047] In the description of the present 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.

[0048] 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.

[0049] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0050] This embodiment relates to a seat structure, which optimizes its structure to facilitate the flipping of the seat cushion 2 while providing good comfort.

[0051] In terms of overall structure, the seat structure includes a base 1, a seat cushion 2 arranged on the base 1 through a connecting mechanism, and a driving unit 4 arranged on the base 1. The driving unit 4 has a retractable driving end, which is connected to the connecting mechanism, and when the driving end is extended, the seat cushion 2 can be driven to flip upward and move forward through the connecting mechanism.

[0052] The seat structure of this embodiment is such that when the driving end of the driving part 4 is extended, the seat cushion 2 is driven to flip upward and move forward through the connecting mechanism, which is beneficial to increase the distance between the seat cushion 2 and the backrest 3 after flipping, so that the seat cushion 2 can have a larger flipping angle, and at the same time, it can also solve the problem in the prior art that the seat cushion 2 is easy to interfere with the backrest 3 when flipping, and there is no need to reduce the thickness of the foam body on the seat cushion 2 and the backrest 3, nor to change the shape of the foam body. Therefore, while ensuring the flipping angle of the seat cushion 2, the riding comfort of the seat structure can be improved.

[0053] Based on the above overall introduction, an exemplary structure of the seat structure described in this embodiment is as follows: Figures 1 to 5 The seat structure in this embodiment has a use state for sitting, and a storage state that is flipped up and moved forward. The seat structure in the use state is as shown in FIG. Figures 1 to 3 As shown in the figure, the seat structure in the stowed state is as follows Figure 5 The seat cushion 2 in the stowed state is preferably arranged vertically or nearly vertically to reduce the amount of space occupied in the vehicle.

[0054] The base 1 in this embodiment serves as a mounting carrier for the seat cushion 2 and the backrest 3, wherein the bottom of the backrest 3 is connected to the rear of the base 1, and the seat cushion 2 is located at the front side of the backrest 3 and is connected to the base 1. In order to highlight the improved structure in this embodiment, only part of the structure of the base 1 and the skeleton parts of the seat cushion 2 and the backrest 3 are shown in the drawings.

[0055] As a preferred embodiment, Figure 3 and Figure 4 As shown in the figure, the connection mechanism in this embodiment includes a first connection member 6 and a second connection member 5, and the first connection member 6 and the second connection member 5 are both hinged between the base 1 and the seat cushion 2, and form a four-bar linkage with the base 1 and the seat cushion 2. The first connection member 6 is located below the second connection member 5, and the driving end is hingedly connected to the first connection member 6.

[0056] Here, the first connecting member 6 and the second connecting member 5 are both hinged between the base 1 and the seat cushion 2, and form a four-bar linkage with the base 1 and the seat cushion 2, and the driving end is hingedly connected to the first connecting member 6. When the driving end is extended, by driving the first connecting member 6 to rotate, the other components in the four-bar linkage can be synchronously moved, so that the seat cushion 2 can be flipped upward and moved forward at the same time. The structure of the four-bar linkage here is simple, easy to arrange and implement, and conducive to reducing production costs.

[0057] like Figure 3 and Figure 4As shown in FIG, the bottom of the base 1 has mounting plates 101 disposed on the left and right sides, the bottom of the backrest 3 is specifically connected to the two mounting plates 101, and the two sides of the rear portion of the seat cushion 2 respectively have side plates 201 located inside the mounting plates 101. The first connecting member 6 and the second connecting member 5 are both located between the mounting plate 101 and the side plate 201 on the same side.

[0058] In detail, the first connecting member 6 in this embodiment is a bent connecting plate, and has a first plate body 601 and a second plate body 602 arranged in a stepped manner. The first plate body 601 is hingedly connected to the base 1, and the second plate body 602 is hingedly connected to the seat cushion 2 and the driving end, and the hinge points between the first connecting member 6 and the base 1, the seat cushion 2 and the driving end are arranged in a triangular shape.

[0059] Here, the first plate 601 and the second plate 602 are arranged in a stepped shape, which not only has good strength, but also facilitates the hinge connection between the first connecting member 6 and the base 1 and the seat cushion 2, and has good connection firmness, thereby improving the stability and load-bearing performance of the seat cushion 2. In addition, the hinge points between the first connecting member 6 and the base 1, the seat cushion 2 and the driving end are arranged in a triangular shape, and the high stability of the triangular structure can be used to improve the connection stability between the first connecting member 6 and the driving end and the base 1.

[0060] like Figure 4 and Figure 6 As shown in the figure, the first plate 601 in this embodiment is specifically connected to the inner side of the mounting plate 101, and the second plate 602 is specifically connected to the outer side of the side plate 201. Since the side plate 201 is located on the inner side of the mounting plate 101, the stepped first plate 601 and the second plate 602 are conducive to the connection between the first connecting member 6 and the mounting plate 101 and the side plate 201, and have a good connection effect. In specific implementation, the first plate 601 can be Figure 6 In addition to the fan-shaped shown in the figure, other geometric shapes can also be used as long as the connection and use requirements are met.

[0061] Continue to combine Figure 4 As shown in the figure, the hinge point between the first connecting member 6 and the seat cushion 2 is located above the hinge point between the first connecting member 6 and the driving end. Such a configuration is conducive to the external force from the driving end driving the first connecting member 6 to rotate around the hinge point between the first plate body 601 and the mounting plate 101. In this embodiment, the first connecting member 6 has a simple structure, is easy to process and shape, and is easy to arrange and implement, and reduces production costs.

[0062] As a preferred embodiment, the second connecting member 5 in this embodiment is a connecting rod, and the connecting rod is bent and has a first part 501 and a second part 502 arranged in a step shape, the first part 501 is hingedly connected to the seat cushion 2, and the second part 502 is hingedly connected to the base 1. Here, the first part 501 and the second part 502 arranged in a step shape in the connecting rod are conducive to realizing the hinge between the second connecting member 5 and the seat cushion 2 and the base 1, and the connecting rod has a simple structure, is easy to process and shape, and has a good use effect.

[0063] The structure of the second connecting member 5 is as follows Figure 4 and Figure 6 As shown in , in the use state, the first part 501 is located in front of the second part 502, and the hinge point between the second part 502 and the side panel 201 is located obliquely above the hinge point between the second plate body 602 and the side panel 201. In the storage state, the second part 502 is located in front of the first part 501. Here, the second connecting member 5 has a simple structure, is easy to process and form, and has a good connection effect.

[0064] As a preferred embodiment, in this embodiment, a limiting portion is provided between the base 1 and the first connecting member 6, and the limiting portion is used to limit the flipping angle of the seat cushion 2 during the storage process. Here, the flipping angle of the seat cushion 2 is limited by the limiting portion, so that the seat cushion 2 is flipped to the optimal storage state.

[0065] In terms of specific structure, Figure 1 and Figure 5 As shown in , the limiting part in this embodiment includes an arc groove 102 provided on the base 1, and a limiting column 603 provided on the first connecting member 6. The arc groove 102 takes the hinge point between the first connecting member 6 and the base 1 as the center of the circle, and the limiting column 603 is inserted into the arc groove 102 and can be connected with one end of the arc groove 102 (that is, Figure 5 The front end (shown in the state) abuts against the seat cushion 2 to limit the flipping angle of the seat cushion 2.

[0066] Here, the arc groove 102 is arranged on the mounting plate 101, and the limiting column 603 is arranged on the second plate body 602. The arc groove 102 and the limiting column 603 have simple structures, are easy to process and form, and the limiting effect of the cooperation between the two is good. Figure 5 As shown in FIG. 1 , when the limiting post 603 abuts against the front end of the arc-shaped groove 102 , the seat cushion 2 is flipped upward and moves forward to be in a storage state.

[0067] In order to prevent the limiting column 603 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 603. It can be understood that in this embodiment, the positions of the arc groove 102 and the limiting column 603 can also be exchanged, that is, the arc groove 102 is set on the second plate body 602, and the limiting column 603 is set on the mounting plate 101. In specific implementation, the positions of the arc groove 102 and the limiting column 603, the angle of the arc groove 102, etc. can be determined according to the use requirements.

[0068] In addition, as a preferred embodiment, Figure 1 and Figure 5 As shown in , the seat cushion 2 is provided with a limit block 202, which can abut against the base 1 to limit the flip angle of the seat cushion 2 during the unfolding process. In this embodiment, by providing the limit block 202, the stability of the seat cushion 2 in the unfolded state can be improved, and the support effect for the passenger can be improved. In addition, in order to improve the use effect, the limit block 202 is preferably made of rubber to have a certain amount of compression, and at the same time, it can also prevent contact with the base 1 to produce abnormal noise.

[0069] In this embodiment, the limit blocks 202 are two spaced apart at the bottom of the seat cushion 2 along the left-right direction, which is conducive to further improving the limit effect of the limit blocks 202. Figure 1 and Figure 4 As shown in the figure, corresponding to each limit block 202, a limit plate 106 with an upward convex setting is also provided on the base 1. When the seat cushion 2 is in the unfolded state, the limit blocks 202 respectively abut against the corresponding limit plates 106, thereby achieving a better limit effect.

[0070] As a further embodiment, Figure 1 and Figure 5 As shown in , the seat cushion 2 is provided with a limit block 202 on both the left and right sides to further improve the stability of the seat cushion 2 when it is unfolded, i.e., in the use state. In addition, corresponding to each limit block 202, a limit plate 106 with an upward convex arrangement is also provided on the base 1. By setting the limit block 202 and the limit plate 106, during the flipping process of the seat cushion 2, the limit block 202 can first contact the limit plate 106 on the base 1, and as the driving unit 4 continues to operate, the limit block 202 can be compressed until the limit block 202 reaches the maximum compression amount, and the driving unit 4 stops operating, thereby effectively ensuring the stability of the seat cushion 2.

[0071] It should be noted that in order to ensure the limiting effect of the limiting block 202 and the limiting plate 106 on the seat cushion 2 flipped to the use state, the limiting column 603 in the use state is spaced apart from the upper end of the arc groove 102 rather than being in abutment.

[0072] In this embodiment, in order to facilitate the arrangement of the driving unit 4, as shown in FIG. Figure 2 , Fig.10 , Fig.11 and Fig.12 As shown in , the driving part 4 includes a mounting frame 103 having a mounting hole 1033, and a driving body. The mounting frame 103 is fixedly connected to the base 1, and a support groove 1031 is provided on the inner wall of the mounting hole 1033. A portion of the driving body is inserted into the mounting hole 1033, and has a protrusion 4032 embedded in the support groove 1031. When the driving end is extended and retracted, the driving body can swing relative to the mounting frame 103 with the protrusion 4032 as a support point, that is, it can swing relative to the base 1.

[0073] In this embodiment, a support groove 1031 is provided on the inner wall of the mounting hole 1033 of the mounting frame 103 for the protrusion 4032 on the driving body to be embedded in, so that when the driving end is extended or retracted, the driving body can swing relative to the base 1 with the protrusion 4032 as the support point, thereby meeting the use requirements of flipping and moving the seat cushion 2 forward.

[0074] In terms of specific structure, Figures 7 to 12 As shown in the figure, the mounting frame 103 is specifically mounted on the inner side of the rear end of the mounting plate 101. To facilitate the installation of the mounting frame 103 on the base 1, a plurality of connection holes are arranged at intervals along the circumference of the support groove 1031 on the mounting frame 103, and the mounting frame 103 can be mounted on the base 1 by screwing the bolts passing through the mounting plate 101 and the mounting frame 103. Here, the connection method of the mounting frame 103 is simple and easy to operate.

[0075] The driving body in this embodiment has an insertion portion 403 inserted into the mounting hole 1033, wherein the insertion portion 403 is specifically block-shaped, the protrusion 4032 is located on the side of the insertion portion 403 disposed toward the rear, and the support groove 1031 is disposed on the inner wall of the mounting hole 1033 disposed toward the rear corresponding to the protrusion 4032. Preferably, the support groove 1031 is arc-shaped, the protrusion 4032 is disposed in the same shape as the support groove 1031, and also has an arc surface adapted to the inner wall of the support groove 1031.

[0076] The arrangement of the protrusion 4032 and the supporting groove 1031 here enables the driving end on the driving part 4 to maintain connection with the driving part 4 and the first connecting member 6 when the seat cushion 2 is flipped upward and moved forward, thereby facilitating the adjustment of the seat cushion 2.

[0077] In this embodiment, the structure of the protrusion 4032 and the supporting groove 1031 in the use state is as follows Fig.10 As shown in FIG. 1 , at this time, the bottom of the insertion portion 403 abuts against the inner wall of the bottom of the mounting hole 1033, so that the insertion portion 403 does not need to continue to swing downward. The structure of the protrusion 4032 and the support groove 1031 in the storage state is as shown in FIG. Fig.11As shown in , the insertion part 403 swings upward with the protrusion 4032 as a fulcrum, so that the top of the insertion part 403 abuts against the inner wall of the top of the mounting hole 1033 and cannot continue to swing upward.

[0078] In order to further improve the stability of the insertion part 403 during swinging, the front end face of the insertion part 403 and the inner wall of the front part of the mounting hole 1033 are both arc-shaped, so that the swinging insertion part 403 can be guided by the abutment between the two, thereby facilitating the stability of the insertion part 403 when it swings relative to the mounting frame 103.

[0079] Among them, the driving part 4 can adopt an existing device that can output linear power, for example, a linear motor, a cylinder, a gas spring or a screw motor. As a preferred embodiment, the driving part 4 includes a screw motor arranged on the mounting frame 103, and the driving end is composed of a screw 401 of the screw motor. The screw motor can specifically adopt products in the prior art, which are mature, easy to arrange and implement, and have a good driving effect. For example, a screw motor model Tilt2000 produced by Kaibo (Changshu) Seat Mechanical Parts Co., Ltd. can be used. In the specific arrangement, such as Fig. 9 As shown in the figure, the lead screw 401 passes through the weight-reducing holes 1032 and the insertion part 403 on the front and rear sides of the mounting frame 103, and is driven by the lead screw motor to rotate around its own axis while also being able to move in the front and rear directions. When the seat cushion 2 flips upward and moves forward, the lead screw motor swings relative to the base 1 with the protrusion 4032 as a support point.

[0080] In this embodiment, Figure 5 and Fig. 9 As shown in the figure, a protruding block 4031 is provided on the outer end face of the insertion part 403. In order to avoid the protrusion 4031, an arc hole 105 with the protrusion 4032 as the center is provided on the mounting plate 101. The protrusion 4031 is inserted into the arc hole 105 and can slide in the arc hole 105.

[0081] In addition, in order to facilitate the connection between the front end of the lead screw 401 and the second plate 602 of the first connecting member 6, a connecting piece 402 extending in the front-to-back direction is provided at the front end of the lead screw 401, and the front end of the connecting piece 402 is hingedly connected to the second plate 602. The front end of the connecting piece 402 is provided with a connecting hole for being hingedly connected to the first connecting member 6, and a self-lubricating sleeve 4022 is provided in the connecting hole, and the front end of the connecting piece 402 is specifically rotatably connected to the first connecting member 6 through the self-lubricating sleeve 4022. Here, the structure of the connecting piece 402 is simple, and it is easy to arrange and implement. The connecting piece 402 in this embodiment is preferably integrally formed with the lead screw 401, which is conducive to improving processing and assembly efficiency.

[0082] In this embodiment, as a preferred implementation, both left and right sides of the seat cushion 2 are provided with connection mechanisms, and the driving unit 4 is connected to the connection mechanism on one side. By providing connection mechanisms on both left and right sides of the seat cushion 2, it is beneficial to improve the stability of the seat cushion 2 during flipping and movement. In addition, during specific implementation, the flipping angle and forward movement distance of the seat cushion 2 can be adjusted by the length of the lead screw 401 in the driving unit 4 and the positions of the four hinge points in the four-bar linkage.

[0083] When the seat structure of this embodiment needs to adjust the seat cushion 2 in the use state to the storage state, such as Figure 3 As shown in the figure, the screw motor drives the screw 401 to rotate and causes the connecting piece 402 on the screw to move forward, thereby driving the first connecting member 6 and the second connecting member 5 to rotate forward counterclockwise, thereby driving the seat cushion 2 to flip upward and move forward at the same time, and the limiting column 603 slides forward from the rear end of the arc groove 102, and the insertion part 403 of the driving body swings upward with the protrusion 4032 as the fulcrum, and the protrusion 4031 slides upward from the lower end of the arc hole 105 until the limiting column 603 abuts against the front end of the arc groove 102. At this time, the seat cushion 2 flips to the storage state.

[0084] It has been verified that there is no interference between the foam body on the flipped-over seat cushion 2 and the foam body on the backrest 3, 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.

[0085] When it is necessary to adjust the seat cushion 2 in the stored state to the use state, the screw motor drives the screw 401 to rotate, and causes the connecting piece 402 on the screw to move backward, thereby driving the first connecting member 6 and the second connecting member 5 to rotate backward clockwise, thereby driving the seat cushion 2 to flip downward and move backward at the same time, and the limiting column 603 slides backward from the front end of the arc groove 102, and the insertion part 403 of the driving body swings downward with the protrusion 4032 as the fulcrum, and the protrusion 4031 slides upward from the upper end of the arc hole 105 until the seat cushion 2 stops moving after the limiting block 202 and the limiting plate 106 are pressed tightly. At this time, the seat cushion 2 is flipped to the use state.

[0086] It should be noted that in order to ensure the limiting effect of the limiting block 202 and the limiting plate 106 on the seat cushion 2 flipped to the use state, the limiting column 603 in the use state is spaced apart from the rear end of the arc groove 102 rather than being in abutment.

[0087] The seat structure in this embodiment, by setting a connection mechanism between the base 1 and the seat cushion 2, and the driving unit 4 drives the connection mechanism to drive the seat cushion 2 to flip upward and move forward, compared with the traditional solution that the seat cushion 2 can only flip, the distance between the seat cushion 2 and the backrest 3 after flipping can be increased, thereby allowing the seat cushion 2 to have a larger flip angle. At the same time, the foam bodies on the seat cushion 2 and the backrest 3 do not interfere with each other, thereby allowing thicker foam bodies to be set on the seat cushion 2 and the backrest 3, which can improve the riding comfort of the seat structure. In addition, the connecting rod mechanism adopts a four-bar connecting rod mechanism, which has the advantages of simple structure, easy implementation, and low production and implementation costs, and is also conducive to reducing the production cost 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 specifically the rear seat of the vehicle. By increasing the flip angle of the seat cushion 2, the space occupied by the seat 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 advantageous in reducing the space occupied by the vehicle interior after the seat cushion 2 is flipped over, and has good 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 comprises a base (1), a seat cushion (2) arranged on the base (1) via a connecting mechanism, and a driving unit (4) arranged on the base (1); The driving part (4) has a retractable driving end, the driving end is connected to the connecting mechanism, and when the driving end is extended, the seat cushion (2) can be folded through the connecting mechanism, and has a sliding stroke for sliding forward and a flipping stroke for flipping upward.

2. The seat structure according to claim 1, characterized in that: The connecting mechanism comprises a first connecting member (6) and a second connecting member (5), and the first connecting member (6) and the second connecting member (5) are both hinged between the base (1) and the seat cushion (2), and form a four-bar linkage with the base (1) and the seat cushion (2); The first connecting member (6) is located below the second connecting member (5), and the driving end is hingedly connected to the first connecting member (6).

3. The seat structure according to claim 2, characterized in that: A limiting portion is provided between the base (1) and the first connecting member (6), and the limiting portion is used to limit the flipping angle of the seat cushion (2) during the storage process.

4. The seat structure according to claim 3, characterized in that: The limiting portion comprises an arc-shaped groove (102) provided on the base (1), and a limiting column (603) provided on the first connecting member (6); The arc-shaped groove (102) takes the hinge point between the first connecting member (6) and the base (1) as the center of the circle, and the limiting column (603) is inserted into the arc-shaped groove (102) and can abut against one end of the arc-shaped groove (102) to limit the flipping angle of the seat cushion (2).

5. The seat structure according to claim 2, characterized in that: The first connecting member (6) is a bent connecting plate, and comprises a first plate body (601) and a second plate body (602) arranged in a stepped manner; The first plate body (601) is hingedly connected to the base (1), the second plate body (602) is hingedly connected to the seat cushion (2) and the driving end, and the hinge points between the first connecting member (6) and the base (1), the seat cushion (2) and the driving end are arranged in a triangle.

6. The seat structure according to claim 1, characterized in that: The seat cushion (2) is provided with a limit block (202), and the limit block (202) can abut against the base (1) to limit the turning angle of the seat cushion (2) during the unfolding process.

7. The seat structure according to claim 1, characterized in that: The driving part (4) comprises a mounting frame (103) having a mounting hole (1033), and a driving body; The mounting frame (103) and the base (1) are fixedly connected, a support groove (1031) is provided on the inner wall of the mounting hole (1033), a portion of the driving body is inserted into the mounting hole (1033), and has a protrusion (4032) embedded in the support groove (1031), and when the driving end is extended or retracted, the driving body can swing relative to the mounting frame (103) with the protrusion (4032) as a support point.

8. The seat structure according to claim 7, characterized in that: The driving part (4) comprises a lead screw motor arranged on the mounting frame (103), and the driving end is constituted by a lead screw (401) of the lead screw motor.

9. The seat structure according to any one of claims 1 to 8, characterized in that: The connecting mechanism is provided on both the left and right sides of the seat cushion (2), and the driving part (4) is connected to the connecting mechanism on one side.

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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