Reversible seat mounting structure and automobile

Abstract

The invention relates to the technical field of automobile seats, and discloses a turnover seat installation structure and an automobile, the turnover seat installation structure comprises seat bodies, a support structure and a longitudinal beam, the seat bodies are arranged on the upper side of the longitudinal beam at intervals, the support structure is fixedly installed on the longitudinal beam, and the seat bodies are rotationally connected with the support structure; the support structure comprises a first supporting plate, a second supporting plate and a protruding part. The first supporting plate and the second supporting plate are arranged at intervals in the front-back direction and fixedly connected with the longitudinal beam. The protruding part is fixedly connected between the first supporting plate and the second supporting plate, and the protruding part protrudes upwards and is arranged on the upper sides of the two supporting plates. The rotating axis of the seat body is arranged on the upper portion of the protruding part, and a triangular supporting force transmission path is formed from the protruding part to the first supporting plate and the second supporting plate. The whole connecting structure is simpler, the assembling difficulty is effectively reduced, the space in a luggage compartment is prevented from being occupied, the strength of the support structure serving as a mounting fulcrum of the seat body is high, and meanwhile the purpose of light-weight design is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, in particular to a flippable seat installation structure and an automobile. Background Art

[0002] When using a car, it is often faced with different scenarios such as passengers and cargo. At present, the rear seats are usually designed to be flip-foldable, which can significantly improve the flexibility of the interior space compared to fixed rear seats and meet the multi-functional and multi-purpose requirements of the vehicle.

[0003] like Figure 1 to Figure 2 As shown, the existing rear seat is installed in the area of ​​the rear floor 2a near the luggage compartment 3a. The rear seat installation structure includes a front foot lock buckle 11a, a rear foot lock buckle 12a and a connecting rod bracket 13a. The rear floor 2a is fixed with a front foot lock hook 21a and a rear foot lock hook 22a. When the seat is opened, the front foot lock buckle 11a cooperates with the front foot lock hook 21a, and the rear foot lock buckle 12a cooperates with the rear foot lock hook 22a. In addition, the connecting rod bracket 13a is connected between the seat frame 1a and the luggage compartment wall 31a, and between the rear foot lock buckle 12a and the luggage compartment bottom 32a. The first installation point of the connecting rod bracket 13a is fixedly connected to the luggage compartment wall 31a by an oblique bolt 14a, and the second installation point of the connecting rod bracket 13a is fixedly connected to the luggage compartment bottom 32a by a Z-direction bolt 15a. When flipping, under the limiting action of the connecting rod bracket 13a, the rear seat can flip backward to a folded state.

[0004] However, the connection structure between the existing rear seats and the vehicle body structure is complex and difficult to assemble, and the connecting rod bracket occupies the space in the luggage compartment, which has low space utilization. In addition, the mounting point of the connecting rod bracket is weak, and it is impossible to achieve lightweight design while meeting safety strength. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the connection structure between the existing rear seats and the vehicle body structure is complex and difficult to assemble, and the connecting rod bracket occupies the space in the luggage compartment, resulting in low space utilization, and the installation point strength of the connecting rod bracket is low, making it impossible to achieve a lightweight design while meeting the safety strength requirements.

[0006] In order to solve the above technical problems, the present invention provides a technical solution for a reversible seat installation structure:

[0007] The reversible seat installation structure comprises a seat body, a support structure and a longitudinal beam, wherein the seat body is arranged at intervals on the upper side of the longitudinal beam, the support structure is fixedly installed on the longitudinal beam, and the seat body is rotatably connected to the support structure;

[0008] The support structure includes a first support plate, a second support plate and a protrusion, wherein the first support plate and the second support plate are arranged at intervals along the front-to-back direction and are respectively fixedly connected to the longitudinal beam;

[0009] The protrusion is fixedly connected between the first support plate and the second support plate, and the protrusion protrudes upward and is arranged on the upper side of the first support plate and the second support plate;

[0010] The rotation axis of the seat body is arranged on the upper part of the protrusion, and a triangular support force transmission path is formed from the protrusion to the first support plate and the second support plate.

[0011] Furthermore, the longitudinal beam is fixedly mounted with a first reinforcement member, the first reinforcement member and the longitudinal beam are combined to form a first reinforcement cavity, and the first support plate is fixedly connected to the upper side of the first reinforcement member.

[0012] Furthermore, the longitudinal beam includes a first longitudinal beam section and a second longitudinal beam section arranged at intervals along the transverse direction, a groove-shaped channel is formed between the first longitudinal beam section and the second longitudinal beam section, the longitudinal cross-sectional profile of the first reinforcement is an inverted U shape, and the first reinforcement is buckled in the groove-shaped channel.

[0013] Furthermore, a first supporting surface is provided on the upper portion of the first reinforcement member, a first mounting hole is provided on the first supporting surface, and a first fastener connecting the first support plate and the first supporting surface passes through the first mounting hole;

[0014] The edge of the first reinforcement is provided with a first side flange and a first upper flange, the first side flange is overlapped and fixed with the side wall of the longitudinal beam, and the first upper flange is overlapped and fixed with the upper flange of the longitudinal beam.

[0015] Furthermore, the longitudinal beam is fixedly mounted with a second reinforcement member, the second reinforcement member and the longitudinal beam are combined to form a second reinforcement cavity, and the second support plate is fixedly connected to the upper side of the second reinforcement member.

[0016] Furthermore, the cross-sectional profile of the second section of the longitudinal beam is a step-shaped one, and the second reinforcement member is buckled on the inner side of the second section of the longitudinal beam;

[0017] The second reinforcement member includes a horizontal plate, a vertical plate and two end plates, the horizontal plate is fixedly connected to the vertical plate, and the two end plates are respectively arranged on both sides of the horizontal plate and the vertical plate;

[0018] The horizontal plate is arranged on the upper side of the second section of the longitudinal beam, the vertical plate is arranged on the inner side of the second section of the longitudinal beam, and the two end plates are abutted and connected with the step surface of the second section of the longitudinal beam.

[0019] Furthermore, a second supporting surface is provided on the upper portion of the second reinforcement member, a second mounting hole is provided on the second supporting surface, and a second fastener connecting the second support plate and the second supporting surface passes through the second mounting hole;

[0020] The edge of the second reinforcement is provided with a second side flange, a second upper flange and a second lower flange, the second side flange is overlapped and fixed to the side wall of the second section of the longitudinal beam, the second upper flange is overlapped and fixed to the upper flange of the second section of the longitudinal beam, and the second lower flange is overlapped and fixed to the bottom edge of the second section of the longitudinal beam.

[0021] Furthermore, the reversible seat mounting structure further comprises a locking member, a locking hook and a crossbeam on the floor, wherein the locking member is arranged on the lower side of the seat body, and the locking member and the support structure are arranged in a front-to-rear spacing;

[0022] The crossbeam on the floor is used to be fixedly installed on the upper side of the floor to form a transverse channel between the crossbeam on the floor and the floor; the locking hook is fixedly arranged on the upper side of the crossbeam on the floor, and the locking member is detachably connected to the locking hook.

[0023] Furthermore, a lock hook reinforcement plate is arranged between the lock hook and the horizontal beam on the floor, and a plurality of longitudinal ribs are arranged on the lock hook reinforcement plate. The plurality of longitudinal ribs are distributed at intervals along the transverse direction, and the lock hook is fixedly connected to the interval between two adjacent longitudinal ribs.

[0024] Furthermore, a third reinforcement is provided inside the transverse channel, and the cross-sectional profile of the third reinforcement is U-shaped. The third reinforcement and the inner wall of the cross beam on the floor are combined to form a third reinforcement cavity, and a third flange is provided on the edge of the third reinforcement, and the third flange is overlapped and fixed to the inner wall of the cross beam on the floor.

[0025] In order to solve the above technical problems, the present invention provides a technical solution for an automobile:

[0026] The vehicle includes a floor, and a reversible seat mounting structure;

[0027] The reversible seat installation structure comprises a seat body, a support structure and a longitudinal beam, the floor is fixedly installed on the upper side of the longitudinal beam, and the seat body is arranged on the upper side of the floor; the seat bodies are arranged at intervals on the upper side of the longitudinal beam, the support structure is fixedly installed on the longitudinal beam, and the seat body is rotatably connected to the support structure;

[0028] The support structure includes a first support plate, a second support plate and a protrusion, wherein the first support plate and the second support plate are arranged at intervals along the front-to-back direction and are respectively fixedly connected to the longitudinal beam;

[0029] The protrusion is fixedly connected between the first support plate and the second support plate, and the protrusion protrudes upward and is arranged on the upper side of the first support plate and the second support plate;

[0030] The rotation axis of the seat body is arranged on the upper part of the protrusion, and a triangular support force transmission path is formed from the protrusion to the first support plate and the second support plate.

[0031] Furthermore, the longitudinal beam is fixedly mounted with a first reinforcement member, the first reinforcement member and the longitudinal beam are combined to form a first reinforcement cavity, and the first support plate is fixedly connected to the upper side of the first reinforcement member.

[0032] Furthermore, the longitudinal beam includes a first longitudinal beam section and a second longitudinal beam section arranged at intervals along the transverse direction, a groove-shaped channel is formed between the first longitudinal beam section and the second longitudinal beam section, the longitudinal cross-sectional profile of the first reinforcement is an inverted U shape, and the first reinforcement is buckled in the groove-shaped channel.

[0033] Furthermore, a first supporting surface is provided on the upper portion of the first reinforcement member, a first mounting hole is provided on the first supporting surface, and a first fastener connecting the first support plate and the first supporting surface passes through the first mounting hole;

[0034] The edge of the first reinforcement is provided with a first side flange and a first upper flange, the first side flange is overlapped and fixed with the side wall of the longitudinal beam, and the first upper flange is overlapped and fixed with the upper flange of the longitudinal beam.

[0035] Furthermore, the longitudinal beam is fixedly mounted with a second reinforcement member, the second reinforcement member and the longitudinal beam are combined to form a second reinforcement cavity, and the second support plate is fixedly connected to the upper side of the second reinforcement member.

[0036] Furthermore, the cross-sectional profile of the second section of the longitudinal beam is a step-shaped one, and the second reinforcement member is buckled on the inner side of the second section of the longitudinal beam;

[0037] The second reinforcement member includes a horizontal plate, a vertical plate and two end plates, the horizontal plate is fixedly connected to the vertical plate, and the two end plates are respectively arranged on both sides of the horizontal plate and the vertical plate;

[0038] The horizontal plate is arranged on the upper side of the second section of the longitudinal beam, the vertical plate is arranged on the inner side of the second section of the longitudinal beam, and the two end plates are abutted and connected with the step surface of the second section of the longitudinal beam.

[0039] Furthermore, a second supporting surface is provided on the upper portion of the second reinforcement member, a second mounting hole is provided on the second supporting surface, and a second fastener connecting the second support plate and the second supporting surface passes through the second mounting hole;

[0040] The edge of the second reinforcement is provided with a second side flange, a second upper flange and a second lower flange, the second side flange is overlapped and fixed to the side wall of the second section of the longitudinal beam, the second upper flange is overlapped and fixed to the upper flange of the second section of the longitudinal beam, and the second lower flange is overlapped and fixed to the bottom edge of the second section of the longitudinal beam.

[0041] Furthermore, the reversible seat mounting structure further comprises a locking member, a locking hook and a crossbeam on the floor, wherein the locking member is arranged on the lower side of the seat body, and the locking member and the support structure are arranged in a front-to-rear spacing;

[0042] The crossbeam on the floor is used to be fixedly installed on the upper side of the floor to form a transverse channel between the crossbeam on the floor and the floor; the locking hook is fixedly arranged on the upper side of the crossbeam on the floor, and the locking member is detachably connected to the locking hook.

[0043] Furthermore, a lock hook reinforcement plate is arranged between the lock hook and the horizontal beam on the floor, and a plurality of longitudinal ribs are arranged on the lock hook reinforcement plate. The plurality of longitudinal ribs are distributed at intervals along the transverse direction, and the lock hook is fixedly connected to the interval between two adjacent longitudinal ribs.

[0044] Furthermore, a third reinforcement is provided inside the transverse channel, and the cross-sectional profile of the third reinforcement is U-shaped. The third reinforcement and the inner wall of the cross beam on the floor are combined to form a third reinforcement cavity, and a third flange is provided on the edge of the third reinforcement, and the third flange is overlapped and fixed to the inner wall of the cross beam on the floor.

[0045] Furthermore, it also includes a luggage compartment wall, which is covered on the longitudinal beam, and the luggage compartment wall and the longitudinal beam form a closed cavity for wrapping the first reinforcement member and the second reinforcement member.

[0046] Compared with the prior art, the flip seat mounting structure and the automobile of the present invention have the following beneficial effects: the flip seat mounting structure adopts a design form of a seat body, a support structure and a longitudinal beam, the support structure is fixedly mounted on the longitudinal beam, the seat body is rotatably connected to the support structure, the support structure provides a rotation fulcrum for the seat body, and the support structure is fixed on the longitudinal beam. The longitudinal beam has high structural strength and strong load-bearing capacity, and can play a role in reliably supporting the seat body.

[0047] The support structure includes a first support plate, a second support plate and a raised portion. The first support plate and the second support plate are spaced apart in the front-to-back direction and are respectively fixedly connected to the longitudinal beam. The raised portion is fixedly connected between the first support plate and the second support plate. The raised portion protrudes upward and is arranged on the upper side of the first support plate and the second support plate. The rotation axis of the seat body is located on the upper part of the raised portion. The first support plate, the second support plate and the raised portion together constitute a triangular support structure. The force range between the support structure and the longitudinal beam is expanded by the first support plate and the second support plate. The fulcrum height of the seat body is raised by the raised portion, thereby ensuring the seat cushion height and tilt angle after the seat body is unfolded.

[0048] The main design of the reversible seat installation structure is: the installation method of the seat body, the bracket structure and the longitudinal beam. Compared with the existing rear seat installation structure, the entire connection structure is simpler, which effectively reduces the difficulty of assembly and avoids occupying the space in the luggage compartment, and the space utilization rate is higher. In addition, a triangular support force transmission path is formed by the bracket structure. It should be noted that here, the force transmission direction from the protrusion to the first support plate and the second support plate is equivalent to the two hypotenuses of the triangle. The first support plate and the second support plate are both subject to the longitudinal constraint force on the longitudinal beam, which is equivalent to the base of the triangle, thus forming a triangular support force transmission form. This is a high-strength installation fulcrum for the seat body, thereby achieving the purpose of lightweight design while meeting safety strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a front view schematic diagram of an existing rear seat installation structure in a car in the background technology;

[0050] Figure 2 yes Figure 1 A partial schematic diagram of the existing rear seat installation structure;

[0051] Figure 3 is a three-dimensional schematic diagram of a reversible seat installation structure in a vehicle according to an embodiment of the present invention;

[0052] Figure 4 yes Figure 3 A partial schematic diagram of the installation structure of the flip seat;

[0053] Figure 5 is a three-dimensional schematic diagram of a reversible seat installation structure in an embodiment of the present invention;

[0054] Figure 6 yes Figure 5 Schematic diagram of the assembly of the first reinforcement member and the longitudinal beam;

[0055] Figure 7 yes Figure 5 Schematic diagram of the assembly of the second reinforcement member and the longitudinal beam;

[0056] Figure 8 yes Figure 5 A schematic cross-sectional view of the second reinforcement cavity;

[0057] Fig. 9 is a schematic diagram of the assembly of a locking member and a locking hook of a reversible seat mounting structure in an embodiment of the present invention;

[0058] Fig.10 yes Fig. 9 Schematic diagram of cross section at the beam and lock hook on the floor;

[0059] Fig.11 yes Fig. 9 A schematic diagram of the structure at the crossbeam and the third reinforcement member on the floor;

[0060] Figure 1 , Figure 2 Middle: 1a-seat frame, 11a-front foot lock, 12a-rear foot lock, 13a-connecting rod bracket, 14a-oblique bolt, 15a-Z bolt, 2a-floor, 21a-front foot lock hook, 22a-rear foot lock hook, 3a-luggage compartment, 31a-luggage compartment wall, 32a-luggage compartment bottom;

[0061] Figures 3 to 11 Middle: 1-seat body, 2-locking member, 20-locking hook, 21-locking hook reinforcement plate, 210-longitudinal rib, 3-bracket structure, 31-first support plate, 32-second support plate, 33-protrusion;

[0062] 4-longitudinal beam, 40-slot channel, 401-first section of longitudinal beam, 402-second section of longitudinal beam, 403-second reinforcement cavity, 41-first reinforcement member, 410-first mounting hole, 411-first side flange, 412-first Z-direction welding point, 413-first Y-direction welding point, 414-first upper flange;

[0063] 42-second reinforcement, 420-second mounting hole, 421-second side flange, 422-second Z-direction welding point, 423-second Y-direction welding point, 424-horizontal plate, 425-vertical plate, 426-end plate, 427-second upper flange, 428-second lower flange, 43-first fastener, 44-second fastener, 45-luggage compartment wall, 46-locating pin;

[0064] 5-floor, 6-cross beam on the floor, 60-third reinforcement, 600-third reinforcement cavity, 601-third flange, 602-third Z-direction welding point, 603-third X-direction welding point, 7-cross beam under the floor. DETAILED DESCRIPTION

[0065] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0066] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0067] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0068] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] like Figures 3 to 11 As shown, a flip seat mounting structure of an embodiment of the present invention includes a seat body 1, a support structure 3 and a longitudinal beam 4, the seat body 1 is arranged at intervals on the upper side of the longitudinal beam 4, the support structure 3 is fixedly mounted on the longitudinal beam 4, and the seat body 1 is rotatably connected to the support structure 3; the support structure 3 includes a first support plate 31, a second support plate 32 and a protrusion 33, the first support plate 31 and the second support plate 32 are arranged at intervals along the front-to-back direction and are fixedly connected to the longitudinal beam 4 respectively.

[0070] The raised portion 33 is fixedly connected between the first support plate 31 and the second support plate 32, and the raised portion 33 protrudes upward and is arranged on the upper side of the first support plate 31 and the second support plate 32; the rotation axis of the seat body 1 is located at the upper part of the raised portion 33; a triangular support force transmission path is formed from the raised portion 33 to the first support plate 31 and the second support plate 32.

[0071] The flip seat mounting structure adopts a design form of a seat body 1, a support structure 3 and a longitudinal beam 4. The support structure 3 is fixedly mounted on the longitudinal beam 4. The seat body 1 is rotatably connected to the support structure 3. The support structure 3 provides a rotation fulcrum for the seat body 1, and the support structure 3 is fixed on the longitudinal beam 4. The longitudinal beam 4 has high structural strength and strong load-bearing capacity, and can play a role in reliably supporting the seat body 1.

[0072] The support structure 3 includes a first support plate 31, a second support plate 32 and a protrusion 33. The first support plate 31 and the second support plate 32 are arranged at intervals along the front-to-back direction and are respectively fixedly connected to the longitudinal beam 4. The protrusion 33 is fixedly connected between the first support plate 31 and the second support plate 32. The protrusion 33 protrudes upward and is arranged on the upper side of the first support plate 31 and the second support plate 32. The rotation axis of the seat body 1 is located on the upper part of the protrusion 33. The first support plate 31, the second support plate 32 and the protrusion 33 together constitute a triangular support structure. The first support plate 31 and the second support plate 32 expand the force range between the support structure 3 and the longitudinal beam 4. The protrusion 33 raises the fulcrum height of the seat body 1, thereby ensuring the seat cushion height and tilt angle after the seat body 1 is unfolded.

[0073] The main design of the reversible seat installation structure is: the installation method of the seat body 1, the support structure 3 and the longitudinal beam 4. Compared with the existing rear seat installation structure, the entire connection structure is simpler, which effectively reduces the difficulty of assembly and avoids occupying the space in the luggage compartment, and the space utilization rate is higher. In addition, the support structure 3 forms a triangular support force transmission path. It should be noted that here, the force transmission direction from the protrusion 33 to the first support plate 31 and the second support plate 32 is equivalent to the two hypotenuses of the triangle. The first support plate 31 and the second support plate 32 are both subject to the longitudinal constraint force on the longitudinal beam 4, which is equivalent to the base of the triangle, thereby forming a triangular support force transmission form. It does not mean that the shape of the support structure 3 can only be a triangle. This has high strength as the installation fulcrum of the seat body 1, thereby achieving the purpose of lightweight design while meeting the safety strength.

[0074] In this embodiment, the longitudinal beam 4 is fixedly installed with a first reinforcement member 41, and the first reinforcement member 41 and the longitudinal beam 4 enclose a first reinforcement cavity, and the first support plate 31 is fixedly connected to the upper side of the first reinforcement member 41; the first reinforcement member 41 cooperates with the side profile of the longitudinal beam 4 and encloses to form the first reinforcement cavity, and the longitudinal beam 4 is locally strengthened by constructing the first reinforcement cavity. The first support plate 31 and the first reinforcement member 41 are fixedly connected, so that an effective force transmission path can be formed between the first support plate 31 and the longitudinal beam 4.

[0075] The longitudinal beam 4 includes a first longitudinal beam section 401 and a second longitudinal beam section 402 arranged at intervals in the transverse direction, a groove-shaped channel 40 is formed between the first longitudinal beam section 401 and the second longitudinal beam section 402, and the longitudinal section profile of the first reinforcement member 41 is an inverted U shape, and the first reinforcement member 41 is buckled in the groove-shaped channel 40. Figure 6 As shown, the inverted U-shaped first reinforcement member 41 is buckled in the grooved channel 40, so that the first reinforcement member 41 and the first section 401 and the second section 402 of the longitudinal beam are enclosed and sealed to form a first reinforcement cavity. Specifically, the contour shape of the first reinforcement cavity is box-shaped, which effectively improves the structural strength here and ensures that the first section 401 and the second section 402 of the longitudinal beam can play a role in jointly bearing and transmitting force to the first support plate 31.

[0076] As a further preferred solution, a first supporting surface is provided on the upper part of the first reinforcement 41, a first mounting hole 410 is provided on the first supporting surface, and a first fastener 43 connecting the first support plate 31 and the first supporting surface is passed through the first mounting hole 410. The first fastener 43 is used to connect the first supporting surface of the first reinforcement 41 and the first support plate 31, so that the first fastener 43 is completely enclosed in the vehicle, avoiding the problem of moisture and dust intruding into the vehicle due to the fastener being set through the outside of the vehicle body.

[0077] The edge of the first reinforcement 41 is provided with a first side flange 411 and a first upper flange 414. The first side flange 411 is overlapped and fixed with the side wall of the longitudinal beam 4, and the first upper flange 414 is overlapped and fixed with the upper flange of the longitudinal beam 4. Definition: "front and rear", "longitudinal", and "X direction" all refer to the length direction of the vehicle body, "transverse" and "Y direction" all refer to the width direction of the vehicle body, and "Z direction" refers to the height direction of the vehicle body. It should be noted that a plurality of first Y-direction welding points 413 are provided between the first side flange 411 and the side wall of the first section 401 of the longitudinal beam and the side wall of the second section 402 of the longitudinal beam, and the first Y-direction welding points 413 mainly bear shear force. At least two first Z-direction welding points 412 are provided between the first upper flange 414 and the upper flange of the first section 401 of the longitudinal beam, and the first Z-direction welding points 412 mainly bear peeling force. The connection strength between the first reinforcement 41 and the longitudinal beam 4 is ensured by the Y-direction welding points and the Z-direction welding points.

[0078] In this embodiment, the longitudinal beam 4 is fixedly mounted with a second reinforcement member 42, the second reinforcement member 42 and the longitudinal beam 4 enclose a second reinforcement cavity 403, and the second support plate 32 is fixedly connected to the upper side of the second reinforcement member 42. The second reinforcement member 42 cooperates with the side profile of the longitudinal beam 4 and encloses to form the second reinforcement cavity 403, and the longitudinal beam 4 is partially strengthened by constructing the second reinforcement cavity 403. The second support plate 32 and the second reinforcement member 42 are fixedly connected, so that an effective force transmission path can be formed between the second support plate 32 and the longitudinal beam 4.

[0079] As a further preferred solution, the cross-sectional profile of the second longitudinal section 402 is a step-shaped one, and the second reinforcement member 42 is buckled on the inner side of the second longitudinal section 402, so that the second reinforcement member 42 and the second longitudinal section 402 are enclosed and sealed to form a second reinforcement cavity 403. Figure 7 , Figure 8 As shown, the contour shape of the second reinforcement cavity 403 is box-shaped, which effectively improves the structural strength here and ensures that the second section 402 of the longitudinal beam can effectively bear and transmit force to the second support plate 32.

[0080] Specifically, the second reinforcement 42 includes a horizontal plate 424, a vertical plate 425 and two end plates 426. The horizontal plate 424 is fixedly connected to the vertical plate 425, and the two end plates 426 are respectively arranged on both sides of the horizontal plate 424 and the vertical plate 425; the horizontal plate 424 is arranged on the upper side of the second section 402 of the longitudinal beam, and the vertical plate 425 is arranged on the inner side of the second section 402 of the longitudinal beam, and the two end plates 426 are abutted and connected with the step surface of the second section 402 of the longitudinal beam.

[0081] Correspondingly, the second support surface is provided on the upper part of the second reinforcement 42, and the second support surface is provided with a second mounting hole 420, and a second fastener 44 connecting the second support plate 32 and the second support surface is penetrated in the second mounting hole 420; the second fastener 44 is used to connect the second support surface of the second reinforcement 42 and the second support plate 32, so that the second fastener 44 is completely enclosed in the vehicle, and the problem of water and dust intruding into the vehicle due to the fastener penetrating the outside of the vehicle body is also avoided. In addition, a positioning pin 46 is also provided between the second support plate 32 and the second reinforcement 42, and the positioning pin 46 can reduce the difficulty of assembly alignment, thereby improving the installation accuracy.

[0082] The edge of the second reinforcement 42 also includes a second side flange 421, a second upper flange 427 and a second lower flange 428. The second side flange 421 is overlapped and fixed with the side wall of the second section 402 of the longitudinal beam, the second upper flange 427 is overlapped and fixed with the upper flange of the second section 402 of the longitudinal beam, and the second lower flange 428 is overlapped and fixed with the bottom edge of the second section 402 of the longitudinal beam. It should be noted that a plurality of second Y-direction welding points 423 are provided between the second side flange 421 and the side wall of the second section 402 of the longitudinal beam, and the second Y-direction welding points 423 mainly bear shear force. A plurality of second Z-direction welding points 422 are provided between the second upper flange 427 and the upper edge of the second section 402 of the longitudinal beam, and between the second lower flange 428 and the bottom edge of the second section 402 of the longitudinal beam, and the second Z-direction welding points 422 mainly bear peeling force. The connection strength between the second reinforcement 42 and the longitudinal beam 4 is ensured by the Y-direction welding points and the Z-direction welding points.

[0083] In this embodiment, the flip seat mounting structure also includes a locking member 2, a locking hook 20 and a cross beam 6 on the floor. The locking member 2 is arranged on the lower side of the seat body 1, and the locking member 2 and the support structure 3 are arranged in a front-to-back interval; the cross beam 6 on the floor is used to be fixedly installed on the upper side of the floor 5 to form a transverse channel between the cross beam 6 on the floor and the floor 5; the locking hook 20 is fixedly arranged on the upper side of the cross beam 6 on the floor, and the locking member 2 and the locking hook 20 are detachably connected.

[0084] The locking member 2 of the seat body 1 is detachably connected to the locking hook 20. After the seat body 1 is unfolded, the locking member 2 and the locking hook 20 can securely lock the seat body 1. After unlocking the two, the seat body 1 can be flipped. The crossbeam 6 on the floor plays a reliable role in bearing the force on the locking hook 20. The crossbeam 6 on the floor can evenly transfer the force of the locking hook 20 to the floor 5, thereby preventing the floor 5 from being easily deformed and damaged by local stress.

[0085] The definition of "the locking member 2 and the support structure 3 are arranged in a front-to-back spacing" is not limited to the installation form in which the locking member 2 is in the front and the support structure 3 is in the back, that is, the seat body 1 can be flipped backwards. In order to meet different usage requirements, in other embodiments, it can also be designed that the support structure is in the front and the locking member is in the back, that is, the seat body can be flipped forward.

[0086] In addition, in other embodiments, based on the design of the rotatable connection between the seat body and the support structure, a detachable assembly form of the seat body and the support structure can be added, which can not only realize the rotation of the seat body relative to the support structure, but also enable the seat body and the support structure to be disassembled, so as to flexibly meet the usage requirements of various scenarios.

[0087] In addition, a locking hook reinforcement plate 21 is provided between the locking hook 20 and the cross beam 6 on the floor. The locking hook reinforcement plate 21 is provided with a plurality of longitudinal ribs 210, which are distributed at intervals in the transverse direction, and the locking hook 20 is fixedly connected to the interval between two adjacent longitudinal ribs 210. The locking hook reinforcement plate 21 increases the contact area between the locking hook 20 and the cross beam 6 on the floor. The longitudinal ribs 210 of the locking hook reinforcement plate 21 not only play a role in installation and positioning, but also ensure the longitudinal structural strength of the locking hook reinforcement plate 21, so that the longitudinal local contact between the locking hook 20 and the locking hook reinforcement plate 21 is expanded to the longitudinal overall force between the locking hook reinforcement plate 21 and the cross beam 6 on the floor.

[0088] As a further preferred solution, a third reinforcement member 60 is further provided inside the transverse channel. The cross-sectional profile of the third reinforcement member 60 is U-shaped. The third reinforcement member 60 and the inner side wall of the cross beam 6 on the floor are enclosed to form a third reinforcement cavity 600. The edge of the third reinforcement member 60 is provided with a third flange 601. The third flange 601 is overlapped and fixed with the inner side wall of the cross beam 6 on the floor. Fig.10 , Fig.11 As shown, the third reinforcement cavity 600 has a box-shaped profile, which effectively improves the structural strength here and ensures that the crossbeam 6 on the floor can effectively bear and transmit force to the lock hook 20 .

[0089] It should be noted that a plurality of third X-direction welds 603 are provided between the third flange 601 of the third reinforcement 60 and the inner side wall of the cross beam 6 on the floor, and the third X-direction welds 603 mainly bear the shear force; a plurality of third Z-direction welds 602 are provided between the third flange 601 of the third reinforcement 60 and the inner side wall of the cross beam 6 on the floor, and the third Z-direction welds 602 mainly bear the peeling force, and the connection strength between the third reinforcement 60 and the cross beam 6 on the floor is ensured by the X-direction welds and the Z-direction welds.

[0090] The reversible seat installation structure further includes an underfloor crossbeam 7, which is fixedly connected to the lower side of the floor 5, and the underfloor crossbeam 6 and the underfloor crossbeam 7 are arranged vertically opposite to each other. The upper and lower fulcrums are formed by the upper and lower crossbeams 6 and the underfloor crossbeam 7, and the underfloor crossbeam 7 is fixedly connected to the longitudinal beam 4, and a complete force transmission path is formed from the lock hook 20, the upper floor crossbeam 6, the floor 5, the underfloor crossbeam 7 to the longitudinal beam 4 in sequence, thereby ensuring the structural strength of the structure. In addition, the luggage compartment wall 45 covers the side wall and the upper side surface of the second reinforcement 42, and the luggage compartment wall 45 and the longitudinal beam 4 enclose a closed cavity for wrapping the first reinforcement 41 and the second reinforcement 42, thereby ensuring the closedness of the internal space of the luggage compartment.

[0091] An automobile according to an embodiment of the present invention comprises a floor 5, a luggage compartment wall 45 and a reversible seat mounting structure, wherein the floor 5 is fixedly mounted on the upper side of the longitudinal beam 4, and the seat body 1 is arranged on the upper side of the floor 5. The luggage compartment wall 45 covers the side wall and the upper side surface arranged on the second reinforcement 42, and the luggage compartment wall 45 and the longitudinal beam 4 form a closed cavity for wrapping the first reinforcement 41 and the second reinforcement 42, thereby ensuring the closedness of the interior space of the luggage compartment. Among them, the reversible seat mounting structure is the same as the various specific embodiments of the reversible seat mounting structure in the above specific embodiments, and will not be repeated here.

[0092] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A reversible seat installation structure, characterized in that: The invention comprises a seat body (1), a support structure (3) and a longitudinal beam (4), wherein the seat body (1) is arranged at intervals on the upper side of the longitudinal beam (4), the support structure (3) is fixedly mounted on the longitudinal beam (4), and the seat body (1) is rotatably connected to the support structure (3); The support structure (3) comprises a first support plate (31), a second support plate (32) and a protruding portion (33); the first support plate (31) and the second support plate (32) are arranged at intervals along the front-rear direction and are respectively fixedly connected to the longitudinal beam (4); The protrusion (33) is fixedly connected between the first support plate (31) and the second support plate (32), and the protrusion (33) protrudes upward and is arranged on the upper sides of the first support plate (31) and the second support plate (32); The rotation axis of the seat body (1) is arranged on the upper part of the raised portion (33), and a triangular support force transmission path is formed from the raised portion (33) to the first support plate (31) and the second support plate (32).

2. The reversible seat installation structure according to claim 1 is characterized in that: The longitudinal beam (4) is fixedly mounted with a first reinforcement member (41), the first reinforcement member (41) and the longitudinal beam (4) enclose a first reinforcement cavity, and the first support plate (31) is fixedly connected to the upper side of the first reinforcement member (41).

3. The reversible seat installation structure according to claim 2, characterized in that: The longitudinal beam (4) comprises a first longitudinal beam section (401) and a second longitudinal beam section (402) arranged at intervals in a transverse direction, a groove-shaped channel (40) is formed between the first longitudinal beam section (401) and the second longitudinal beam section (402), the longitudinal cross-sectional profile of the first reinforcement member (41) is an inverted U-shape, and the first reinforcement member (41) is buckled in the groove-shaped channel (40).

4. The reversible seat installation structure according to claim 3 is characterized in that: A first supporting surface is provided on the upper portion of the first reinforcement member (41), a first mounting hole (410) is provided on the first supporting surface, and a first fastener (43) connecting the first support plate (31) and the first supporting surface passes through the first mounting hole (410); The edge of the first reinforcement member (41) is provided with a first side flange (411) and a first upper flange (414); the first side flange (411) is overlapped and fixed to the side wall of the longitudinal beam (4); and the first upper flange (414) is overlapped and fixed to the upper flange of the longitudinal beam (4).

5. The reversible seat installation structure according to claim 3 or 4, characterized in that: The longitudinal beam (4) is fixedly mounted with a second reinforcement member (42), the second reinforcement member (42) and the longitudinal beam (4) enclose a second reinforcement cavity (403), and the second support plate (32) is fixedly connected to the upper side of the second reinforcement member (42).

6. The reversible seat installation structure according to claim 5, characterized in that: The cross-sectional profile of the second section (402) of the longitudinal beam is a step-shaped one, and the second reinforcement member (42) is buckled on the inner side of the second section (402) of the longitudinal beam; The second reinforcement member (42) comprises a horizontal plate (424), a vertical plate (425) and two end plates (426), wherein the horizontal plate (424) is fixedly connected to the vertical plate (425), and the two end plates (426) are respectively arranged on both sides of the horizontal plate (424) and the vertical plate (425); The horizontal plate (424) is arranged on the upper side of the second section (402) of the longitudinal beam, the vertical plate (425) is arranged on the inner side of the second section (402) of the longitudinal beam, and the two end plates (426) are abutted and connected to the step surface of the second section (402) of the longitudinal beam.

7. The reversible seat installation structure according to claim 5, characterized in that: A second supporting surface is provided on the upper portion of the second reinforcement member (42), a second mounting hole (420) is provided on the second supporting surface, and a second fastener (44) connecting the second support plate (32) and the second supporting surface passes through the second mounting hole (420); The edge of the second reinforcement member (42) is provided with a second side flange (421), a second upper flange (427) and a second lower flange (428); the second side flange (421) is overlapped and fixed to the side wall of the second section (402) of the longitudinal beam; the second upper flange (427) is overlapped and fixed to the upper flange of the second section (402) of the longitudinal beam; and the second lower flange (428) is overlapped and fixed to the bottom edge of the second section (402) of the longitudinal beam.

8. The reversible seat installation structure according to any one of claims 1 to 4, characterized in that: The reversible seat installation structure further comprises a locking member (2), a locking hook (20) and a crossbeam (6) on the floor, wherein the locking member (2) is arranged on the lower side of the seat body (1), and the locking member (2) and the support structure (3) are arranged in a front-to-back spacing; The crossbeam (6) on the floor is used to be fixedly installed on the upper side of the floor (5) to form a transverse channel between the crossbeam (6) on the floor and the floor (5); the locking hook (20) is fixedly arranged on the upper side of the crossbeam (6) on the floor, and the locking member (2) is detachably connected to the locking hook (20).

9. The reversible seat installation structure according to claim 8, characterized in that: A locking hook reinforcement plate (21) is provided between the locking hook (20) and the crossbeam (6) on the floor, and a plurality of longitudinal convex ribs (210) are provided on the locking hook reinforcement plate (21). The plurality of longitudinal convex ribs (210) are distributed at intervals in the transverse direction, and the locking hook (20) is fixedly connected to the interval between two adjacent longitudinal convex ribs (210).

10. The reversible seat installation structure according to claim 8, characterized in that: A third reinforcement member (60) is also provided inside the transverse channel. The cross-sectional profile of the third reinforcement member (60) is U-shaped. The third reinforcement member (60) and the inner side wall of the cross beam (6) on the floor are combined to form a third reinforcement cavity (600). The edge of the third reinforcement member (60) is provided with a third flange (601). The third flange (601) is overlapped and fixed to the inner side wall of the cross beam (6) on the floor.

11. A car, characterized in that: It comprises a floor (5) and a reversible seat mounting structure as claimed in any one of claims 1 to 10, wherein the floor (5) is fixedly mounted on the upper side of the longitudinal beam (4), and the seat body (1) is arranged on the upper side of the floor (5).

12. The automobile according to claim 11, characterized in that: It also includes a luggage compartment wall (45), which is covered on the longitudinal beam (4), and the luggage compartment wall (45) and the longitudinal beam (4) form a closed cavity for wrapping the first reinforcement (41) and the second reinforcement (42).

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