A reversible seat mounting structure and a vehicle

Abstract

The application relates to the technical field of automobile seats, and discloses a reversible seat mounting structure and an automobile. The reversible seat mounting structure comprises a seat body, a support structure and a longitudinal beam, the seat body is arranged on the upper side of the longitudinal beam at intervals, the support structure is fixedly installed on the longitudinal beam, and the seat body is rotationally connected with the support structure. The support structure comprises a first support plate, a second support plate and a protruding part, the first support plate and the second support plate are arranged at intervals along the front-rear direction and are fixedly connected with the longitudinal beam respectively. The protruding part is fixedly connected between the first support plate and the second support plate, and the protruding part is arranged on the upper side of the two support plates in a protruding manner upwards. The rotation axis of the seat body is arranged on the upper part of the protruding part, and a triangular support force transmission path is formed from the protruding part to the first support plate and the second support plate. The whole connecting structure is simpler, the assembly difficulty is effectively reduced, the space in the luggage compartment is avoided from being occupied, the support structure has high strength as the mounting fulcrum of the seat body, and the purpose of lightweight design is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile seats, in particular to a reversible seat mounting structure and an automobile. BACKGROUND

[0002] During the use of an automobile, different scenarios such as passengers and cargo loading are often encountered. At present, the rear row seats are usually designed to be reversible and foldable, which can significantly improve the flexibility of the interior space compared with fixed rear row seats, and meet the requirements of multi-function and multi-purpose of the vehicle.

[0003] As shown in Figures 1 to 2 The existing rear row seat is mounted in the area close to the luggage compartment 3a of the rear floor 2a, and the rear row seat mounting structure includes a front foot lock 11a, a rear foot lock 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 11a cooperates with the front foot lock hook 21a, and the rear foot lock 12a cooperates with the rear foot lock hook 22a. Moreover, the connecting rod bracket 13a is connected between the seat framework 1a and the luggage compartment wall 31a, and between the rear foot lock 12a and the luggage compartment bottom 32a. The first mounting point of the connecting rod bracket 13a is fixedly connected with the luggage compartment wall 31a through an inclined bolt 14a, and the second mounting point of the connecting rod bracket 13a is fixedly connected with the luggage compartment bottom 32a through a Z-direction bolt 15a. When being reversed, the rear row seat can be reversely moved to a folded state under the limiting action of the connecting rod bracket 13a.

[0004] However, the connection structure between the existing rear row seat and the vehicle body structure is complex, the assembly difficulty is high, and the connecting rod bracket occupies the space in the luggage compartment, so the space utilization rate is low. In addition, the mounting point of the connecting rod bracket has low strength, and cannot realize lightweight design while meeting the safety strength. SUMMARY

[0005] The technical problem to be solved by the present application is that the connection structure between the existing rear row seat and the vehicle body structure is complex, the assembly difficulty is high, and the connecting rod bracket occupies the space in the luggage compartment, so the space utilization rate is low. In addition, the mounting point of the connecting rod bracket has low strength, and cannot realize lightweight design while meeting the safety strength.

[0006] In order to solve the above technical problems, the present application provides a technical scheme of a reversible seat mounting structure:

[0007] The reversible seat mounting structure includes a seat body, a bracket structure and a longitudinal beam. The seat body is arranged at the upper side of the longitudinal beam in a spaced manner. The bracket structure is fixedly installed on the longitudinal beam. The seat body is rotationally connected with the bracket structure.

[0008] The support structure comprises a first support plate, a second support plate and a protruding part, the first support plate and the second support plate are arranged in the front-rear direction and are fixedly connected with the longitudinal beam respectively;

[0009] The protruding part is fixedly connected between the first support plate and the second support plate, and the protruding part is arranged upwardly on the upper side of the first support plate and the second support plate;

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

[0011] Further, the longitudinal beam is fixedly installed with a first reinforcing member, the first reinforcing member and the longitudinal beam form a first reinforcing cavity, and the first support plate is fixedly connected to the upper side of the first reinforcing member.

[0012] Further, the longitudinal beam comprises a longitudinal beam first segment and a longitudinal beam second segment arranged in the transverse direction, a groove-shaped channel is formed between the longitudinal beam first segment and the longitudinal beam second segment, the longitudinal section profile of the first reinforcing member is inverted U-shaped, and the first reinforcing member is buckled in the groove-shaped channel.

[0013] Further, the upper part of the first reinforcing member is provided with a first supporting surface, the first supporting surface is provided with a first mounting hole, and a first fastener for connecting the first support plate and the first supporting surface is penetrated through the first mounting hole;

[0014] The edge of the first reinforcing member is provided with a first side turn-up and a first upper turn-up, the first side turn-up is lap-jointed and fixed with the side wall of the longitudinal beam, and the first upper turn-up is lap-jointed and fixed with the upper flange of the longitudinal beam.

[0015] Further, the longitudinal beam is fixedly installed with a second reinforcing member, the second reinforcing member and the longitudinal beam form a second reinforcing cavity, and the second support plate is fixedly connected to the upper side of the second reinforcing member.

[0016] Further, the cross section profile of the longitudinal beam second segment is stepped, and the second reinforcing member is buckled on the inner side of the longitudinal beam second segment.

[0017] The second reinforcing member comprises a horizontal plate, a vertical plate and two end plates, the horizontal plate is fixedly connected with the vertical plate, and the two end plates are arranged on the two sides of the horizontal plate and the vertical plate respectively.

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

[0019] Further, an upper portion of the second reinforcing member is provided with a second supporting surface, the second supporting surface is provided with a second mounting hole, and a second fastener penetrating through the second mounting hole connects the second supporting surface and the second supporting plate;

[0020] An edge of the second reinforcing member is provided with a second side turn-up, a second upper turn-up and a second lower turn-up, the second side turn-up is fixedly overlapped with the side wall of the second section of the longitudinal beam, the second upper turn-up is fixedly overlapped with the upper flange of the second section of the longitudinal beam, and the second lower turn-up is fixedly overlapped with the bottom edge of the second section of the longitudinal beam.

[0021] Further, the reversible seat mounting structure further comprises a lock catch, a lock hook and a floor upper cross beam, the lock catch is arranged on the lower side of the seat body, and the lock catch is arranged at intervals in front of and behind the support structure;

[0022] The floor upper cross beam is arranged on the upper side of the floor to form a transverse channel between the floor upper cross beam and the floor, the lock hook is fixedly arranged on the upper side of the floor upper cross beam, and the lock catch is detachably connected with the lock hook.

[0023] Further, a lock hook reinforcing plate is arranged between the lock hook and the floor upper cross beam, a plurality of longitudinal ribs are arranged on the lock hook reinforcing plate, the plurality of longitudinal ribs are arranged at intervals in the transverse direction, and the lock hook is fixedly connected to the intervals between adjacent two longitudinal ribs.

[0024] Further, the inside of the transverse channel is further provided with a third reinforcing member, the third reinforcing member has a U-shaped cross-sectional profile, the third reinforcing member and the inner side wall of the floor upper cross beam form a third reinforcing cavity, and an edge of the third reinforcing member is provided with a third turn-up, and the third turn-up is fixedly overlapped with the inner side wall of the floor upper cross beam.

[0025] To solve the above technical problems, the present application provides a technical scheme of an automobile:

[0026] The automobile comprises a floor and a reversible seat mounting structure.

[0027] The reversible seat mounting structure comprises a seat body, a support structure and a longitudinal beam, the floor is fixedly arranged on the upper side of the longitudinal beam, and the seat body is arranged on the upper side of the floor; the seat body is arranged at intervals on the upper side of the longitudinal beam, the support structure is fixedly arranged on the longitudinal beam, and the seat body is rotatably connected with the support structure.

[0028] The support structure comprises a first supporting plate, a second supporting plate and a protruding portion, the first supporting plate and the second supporting plate are arranged at intervals in the front-rear direction and are respectively fixedly connected with the longitudinal beam.

[0029] The protruding part is fixedly connected between the first supporting plate and the second supporting plate, and protrudes upward on the upper side of the first supporting plate and the second supporting plate;

[0030] The rotation axis of the seat body is arranged at 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.

[0031] Further, the longitudinal beam is fixedly provided with a first reinforcing member, the first reinforcing member and the longitudinal beam form a first reinforcing cavity, and the first supporting plate is fixedly connected to the upper side of the first reinforcing member.

[0032] Further, the longitudinal beam comprises a longitudinal beam first segment and a longitudinal beam second segment arranged in a transverse direction, a groove-shaped channel is formed between the longitudinal beam first segment and the longitudinal beam second segment, the longitudinal section profile of the first reinforcing member is in the shape of an inverted U, and the first reinforcing member is buckled in the groove-shaped channel.

[0033] Further, the upper portion of the first reinforcing member is provided with a first supporting surface, the first supporting surface is provided with a first mounting hole, and a first fastener connecting the first supporting plate and the first supporting surface penetrates through the first mounting hole.

[0034] The edge of the first reinforcing member is provided with a first side turn-up and a first upper turn-up, the first side turn-up is lap-jointed and fixed with the side wall of the longitudinal beam, and the first upper turn-up is lap-jointed and fixed with the upper flange of the longitudinal beam.

[0035] Further, the longitudinal beam is fixedly provided with a second reinforcing member, the second reinforcing member and the longitudinal beam form a second reinforcing cavity, and the second supporting plate is fixedly connected to the upper side of the second reinforcing member.

[0036] Further, the cross section profile of the longitudinal beam second segment is in the shape of a step, and the second reinforcing member is buckled on the inner side of the longitudinal beam second segment.

[0037] The second reinforcing member comprises a horizontal plate, a vertical plate, and two end plates, the horizontal plate is fixedly connected with the vertical plate, and the two end plates are arranged on the two sides of the horizontal plate and the vertical plate, respectively.

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

[0039] Further, the upper portion of the second reinforcing member is provided with a second supporting surface, the second supporting surface is provided with a second mounting hole, and a second fastener connecting the second supporting plate and the second supporting surface penetrates through the second mounting hole.

[0040] The edge of the second reinforcing member is provided with a second side turn-up, a second upper turn-up and a second lower turn-up, the second side turn-up is fixedly overlapped with the side wall of the second section of the longitudinal beam, the second upper turn-up is fixedly overlapped with the upper flange of the second section of the longitudinal beam, and the second lower turn-up is fixedly overlapped with the bottom edge of the second section of the longitudinal beam.

[0041] Further, the reversible seat mounting structure further comprises a lock buckle, a lock hook and a floor upper cross beam, the lock buckle is arranged on the lower side of the seat body, and the lock buckle is arranged at intervals in front and back of the support structure;

[0042] The floor upper cross beam is arranged on the upper side of the floor to form a transverse channel between the floor upper cross beam and the floor, the lock hook is fixedly arranged on the upper side of the floor upper cross beam, and the lock buckle is detachably connected with the lock hook.

[0043] Further, a lock hook reinforcing plate is arranged between the lock hook and the floor upper cross beam, a plurality of longitudinal ribs are arranged on the lock hook reinforcing plate, the plurality of longitudinal ribs are arranged at intervals in the transverse direction, and the lock hook is fixedly connected to the intervals between adjacent two longitudinal ribs.

[0044] Further, a third reinforcing member is arranged in the transverse channel, the third reinforcing member has a U-shaped cross section, a third reinforcing cavity is formed by the third reinforcing member and the inner side wall of the floor upper cross beam, and the edge of the third reinforcing member is provided with a third turn-up, and the third turn-up is fixedly overlapped with the inner side wall of the floor upper cross beam.

[0045] Further, a luggage compartment wall is arranged on the longitudinal beam, and the luggage compartment wall and the longitudinal beam form an enclosed cavity for wrapping the first reinforcing member and the second reinforcing member.

[0046] Compared with the prior art, the reversible seat mounting structure of the present application has the advantages that: the seat body, the support structure and the longitudinal beam are designed, the support structure is fixedly arranged on the longitudinal beam, the seat body is rotatably connected with the support structure, the support structure provides a rotating support point for the seat body, the support structure is fixedly arranged on the longitudinal beam, the longitudinal beam has high structural strength and high bearing capacity, and can reliably support the seat body.

[0047] The bracket structure comprises a first support plate, a second support plate and a protruding part, the first support plate and the second support plate are arranged in the front-rear direction and are fixedly connected with the longitudinal beam respectively, and the protruding part is fixedly connected between the first support plate and the second support plate, and the protruding part is arranged on the upper side of the first support plate and the second support plate in a protruding manner upwards. The rotation axis of the seat body is located at the upper part of the protruding part, the first support plate, the second support plate and the protruding part jointly form a triangular support structure, the force range between the bracket structure and the longitudinal beam is expanded through the first support plate and the second support plate, and the fulcrum height of the seat body is raised through the protruding part, so that the cushion height and the inclination angle of the seat body after unfolding are ensured.

[0048] The main design of the reversible seat mounting structure is that the mounting mode of the seat body, the bracket structure and the longitudinal beam is simpler than the existing rear seat mounting structure, the assembly difficulty is effectively reduced, the space in the luggage compartment is avoided to be occupied, and the space utilization is higher. In addition, the triangular support force transmission path is formed by the bracket structure. It should be noted that the force transmission direction from the protruding part to the first support plate and the second support plate is equivalent to two oblique sides of a triangle, and the first support plate and the second support plate are subjected to longitudinal constraint force on the longitudinal beam, which is equivalent to the bottom side of the triangle, so that the triangular support force transmission form is formed. The mounting fulcrum strength of the seat body is high, so that the purpose of realizing lightweight design while meeting the safety strength is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 is a front view schematic diagram of the existing rear seat mounting structure in the background art in the vehicle;

[0050] Figure 2 is Figure 1 a partial schematic diagram of the existing rear seat mounting structure in the background art;

[0051] Figure 3 is a three-dimensional schematic diagram of the reversible seat mounting structure in the embodiment of the application in the vehicle;

[0052] Figure 4 is Figure 3 a partial schematic diagram of the reversible seat mounting structure in the background art;

[0053] Figure 5 is a three-dimensional schematic diagram of the reversible seat mounting structure in the embodiment of the application;

[0054] Figure 6 is Figure 5 an assembly schematic diagram of the first reinforcing part and the longitudinal beam in the background art;

[0055] Figure 7 is Figure 5 an assembly schematic diagram of the second reinforcing part and the longitudinal beam in the background art;

[0056] Figure 8 is Figure 5 is a schematic view of the cross section of the second reinforcing cavity in

[0057] Figure 9 is a schematic view of the assembly of the lock catch and the lock hook of the reversible seat mounting structure in an embodiment of the present application;

[0058] Figure 10 is Figure 9 is a schematic view of the cross section at the floor cross beam and the lock hook in

[0059] Figure 11 is Figure 9 is a schematic view of the structure at the floor cross beam and the third reinforcing member in

[0060] Figure 1 、 Figure 2 in which: 1a - seat skeleton, 11a - front leg lock catch, 12a - rear leg lock catch, 13a - connecting rod support, 14a - diagonal bolt, 15a - Z-direction bolt, 2a - floor, 21a - front leg lock hook, 22a - rear leg lock hook, 3a - luggage compartment, 31a - luggage compartment wall, 32a - luggage compartment bottom;

[0061] Figures 3 to 11 in which: 1 - seat body, 2 - lock catch, 20 - lock hook, 21 - lock hook reinforcing plate, 210 - longitudinal rib, 3 - support structure, 31 - first support plate, 32 - second support plate, 33 - protruding part;

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

[0063] 42 - second reinforcing member, 420 - second mounting hole, 421 - second side flange, 422 - second Z-direction weld point, 423 - second Y-direction weld 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 - positioning pin;

[0064] 5 - floor, 6 - floor cross beam, 60 - third reinforcing member, 600 - third reinforcing cavity, 601 - third flange, 602 - third Z-direction weld point, 603 - third X-direction weld point, 7 - floor undercross beam. DETAILED DESCRIPTION

[0065] The specific embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application but are not intended to limit the scope of the present application.

[0066] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" used to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0068] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0069] like Figures 3 to 11 As shown, an embodiment of the present invention provides a reversible seat installation structure, including a seat body 1, a support structure 3, and a longitudinal beam 4. The seat body 1 is spaced apart on the upper side of the longitudinal beam 4, and the support structure 3 is fixedly installed on the longitudinal beam 4. The seat body 1 and the support structure 3 are rotatably connected. 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 spaced apart in the front-rear direction and are respectively fixedly connected to the longitudinal beam 4.

[0070] 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 disposed 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 protrusion 33 to the first support plate 31 and the second support plate 32 form a triangular support force transmission path.

[0071] The reversible seat mounting structure adopts the design form of a seat body 1, a support structure 3 and a longitudinal beam 4, the support structure 3 is fixedly installed on the longitudinal beam 4, the seat body 1 is rotationally connected with 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 bearing capacity, and can reliably support the seat body 1.

[0072] The support structure 3 includes 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 spaced apart along the front-rear direction and are fixedly connected with the longitudinal beam 4 respectively, the protruding portion 33 is fixedly connected between the first support plate 31 and the second support plate 32, and the protruding portion 33 is upwardly protruding and 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 portion of the protruding portion 33, the first support plate 31, the second support plate 32 and the protruding portion 33 jointly constitute a triangular support structure, the force range between the support structure 3 and the longitudinal beam 4 is expanded through the first support plate 31 and the second support plate 32, and the fulcrum height of the seat body 1 is raised through the protruding portion 33, so that the cushion height and the inclination angle of the seat body 1 after unfolding are ensured.

[0073] The main design of the reversible seat mounting structure is the mounting mode of the seat body 1, the support structure 3 and the longitudinal beam 4, compared with the existing rear seat mounting structure, the whole connection structure is simpler, the assembly difficulty is effectively reduced, the space in the luggage compartment is avoided to be occupied, and the space utilization rate is higher. In addition, the triangular support force transmission path is formed by the support structure 3. It needs to be noted that here, the force transmission direction from the protruding portion 33 to the first support plate 31 and the second support plate 32 is equivalent to two oblique sides of a triangle, and the first support plate 31 and the second support plate 32 are subjected to longitudinal constraint forces on the longitudinal beam 4, which are equivalent to the bottom side of the triangle, so that the triangular support force transmission form is constituted, which does not mean that the shape of the support structure 3 can only be a triangle. The mounting fulcrum strength of the seat body 1 is high, so that the purpose of realizing lightweight design while meeting the safety strength is achieved.

[0074] In the embodiment, the first reinforcing member 41 is fixedly installed on the longitudinal beam 4, the first reinforcing member 41 and the longitudinal beam 4 enclose a first reinforcing cavity, and the first support plate 31 is fixedly connected to the upper side of the first reinforcing member 41. The first reinforcing member 41 and the side profile of the longitudinal beam 4 cooperatively enclose the first reinforcing cavity, the first support plate 31 and the first reinforcing member 41 are fixedly connected, and an effective force transmission path is formed between the first support plate 31 and the longitudinal beam 4.

[0075] The longitudinal beam 4 comprises a longitudinal beam first section 401 and a longitudinal beam second section 402 arranged in a transverse direction, and a groove-shaped channel 40 is formed between the longitudinal beam first section 401 and the longitudinal beam second section 402. The first reinforcing member 41 has an inverted U-shaped longitudinal cross-sectional profile, and the first reinforcing member 41 is buckled in the groove-shaped channel 40. As shown in Figure 6 The first reinforcing member 41 having the inverted U-shaped profile is buckled in the groove-shaped channel 40, so that the first reinforcing member 41 is enclosed with the longitudinal beam first section 401 and the longitudinal beam second section 402 to form a first reinforcing cavity. Specifically, the first reinforcing cavity has a box-shaped profile, which effectively improves the structural strength and ensures that the longitudinal beam first section 401 and the longitudinal beam second section 402 can jointly bear and transmit the force to the first support plate 31.

[0076] As a further preferred embodiment, the first reinforcing member 41 is provided with a first supporting surface, and the first supporting surface is provided with a first mounting hole 410. A first fastener 43 is arranged to penetrate the first mounting hole 410 to connect the first support plate 31 and the first supporting surface. The first fastener 43 is arranged to penetrate the first support plate 31 and the first supporting surface of the first reinforcing member 41, and the first fastener 43 is completely enclosed in the vehicle, thereby avoiding the problem that water and dust may enter the vehicle due to the fastener penetrating the vehicle body.

[0077] The first reinforcing member 41 is provided with a first side turn-up 411 and a first upper turn-up 414. The first side turn-up 411 is fixedly connected to the side wall of the longitudinal beam 4, and the first upper turn-up 414 is fixedly connected to the upper flange of the longitudinal beam 4. It is defined that "front and back", "longitudinal direction", and "X direction" refer to the length direction of the vehicle body, "transverse direction" and "Y direction" refer to the width direction of the vehicle body, and "Z direction" refers to the height direction of the vehicle body. It is to be noted that the first side turn-up 411 is provided with a plurality of first Y-direction welding points 413 between the side wall of the longitudinal beam first section 401 and the side wall of the longitudinal beam second section 402, and the first Y-direction welding points 413 mainly bear the shearing force. The first upper turn-up 414 is provided with at least two first Z-direction welding points 412 between the upper flange of the longitudinal beam first section 401, and the first Z-direction welding points 412 mainly bear the peeling force. The Y-direction welding points and the Z-direction welding points ensure the connection strength between the first reinforcing member 41 and the longitudinal beam 4.

[0078] In the embodiment, the longitudinal beam 4 is fixedly provided with a second reinforcing member 42, the second reinforcing member 42 and the longitudinal beam 4 form a second reinforcing cavity 403, and the second support plate 32 is fixedly connected to the upper side of the second reinforcing member 42. The second reinforcing member 42 cooperates with the side profile of the longitudinal beam 4 to form the second reinforcing cavity 403, and the second reinforcing member 42 and the longitudinal beam 4 form the second reinforcing cavity 403. By constructing the second reinforcing cavity 403, the second support plate 32 and the second reinforcing member 42 are fixedly connected, so that an effective force transmission path is 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 section 402 of the longitudinal beam is stepped, and the second reinforcing member 42 is buckled to the inner side of the second section 402 of the longitudinal beam, so that the second reinforcing member 42 and the second section 402 of the longitudinal beam enclose and form a second reinforcing cavity 403. As shown in Figure 7 , Figure 8 the profile of the second reinforcing cavity 403 is box-shaped, effectively improving the structural strength at this location and ensuring that the second section 402 of the longitudinal beam can effectively transmit force to the second support plate 32.

[0080] Specifically, the second reinforcing member 42 includes a horizontal plate 424, a vertical plate 425, and two end plates 426, the horizontal plate 424 is fixedly connected with the vertical plate 425, and the two end plates 426 are respectively arranged on the two 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 connected with the stepped surface of the second section 402 of the longitudinal beam in abutment.

[0081] Correspondingly, the upper portion of the second reinforcing member 42 is provided with a second supporting surface, the second supporting surface is provided with a second mounting hole 420, and a second fastener 44 for connecting the second support plate 32 and the second supporting surface penetrates through the second mounting hole 420; the second fastener 44 is connected between the second supporting surface of the second reinforcing member 42 and the second support plate 32, so that the second fastener 44 is completely closed in the vehicle, and the problem of water and dust entering the vehicle due to the fastener penetrating and being arranged outside the vehicle body is also avoided. In addition, a positioning pin 46 is further arranged between the second support plate 32 and the second reinforcing member 42, the positioning pin 46 can reduce the difficulty of assembly alignment, thereby improving the installation precision.

[0082] The edge of the second reinforcing member 42 is further provided with a second side turn-up 421, a second upper turn-up 427, and a second lower turn-up 428, the second side turn-up 421 is fixedly overlapped with the side wall of the second section 402 of the longitudinal beam, the second upper turn-up 427 is fixedly overlapped with the upper flange of the second section 402 of the longitudinal beam, and the second lower turn-up 428 is fixedly overlapped with the bottom edge of the second section 402 of the longitudinal beam. It should be noted that a plurality of second Y-direction welds 423 are arranged between the second side turn-up 421 and the side wall of the second section 402 of the longitudinal beam, and the second Y-direction welds 423 mainly bear shear force. A plurality of second Z-direction welds 422 are arranged between the second upper turn-up 427 and the upper edge of the second section 402 of the longitudinal beam, and between the second lower turn-up 428 and the bottom edge of the second section 402 of the longitudinal beam, and the second Z-direction welds 422 mainly bear peeling force, and the connection strength between the second reinforcing member 42 and the longitudinal beam 4 is ensured through the Y-direction welds and the Z-direction welds.

[0083] In the embodiment, the reversible seat mounting structure further comprises a locking piece 2, a locking hook 20 and a floor cross beam 6. The locking piece 2 is arranged on the lower side of the seat body 1 and is arranged in front of and behind the support structure 3. The floor cross beam 6 is arranged on the upper side of the floor 5 to form a transverse passage between the floor cross beam 6 and the floor 5. The locking hook 20 is fixedly arranged on the upper side of the floor cross beam 6, and the locking piece 2 is detachably connected with the locking hook 20.

[0084] The locking piece 2 of the seat body 1 is detachably connected with the locking hook 20. After the seat body 1 is unfolded, the locking piece 2 and the locking hook 20 can firmly lock the seat body 1. After the locking piece 2 and the locking hook 20 are unlocked, the seat body 1 can be turned over. The floor cross beam 6 reliably bears the force of the locking hook 20. The force of the locking hook 20 is evenly transmitted to the floor 5 through the floor cross beam 6, so that the floor 5 is prevented from being easily deformed and damaged by local stress.

[0085] The arrangement of the locking piece 2 in front of and behind the support structure 3 is not limited to the mounting form in which the seat body 1 is turned over backward. In other embodiments, the support structure can be arranged in front of and the locking piece can be arranged behind, that is, the seat body can be turned over forward to meet different use requirements.

[0086] In addition, in other embodiments, based on the design that the seat body is rotationally connected with the support structure, the seat body and the support structure can be detachably assembled. The seat body can be rotated relative to the support structure, and the seat body and the support structure can be detached to flexibly meet the use requirements of various scenes.

[0087] Furthermore, a locking hook reinforcing plate 21 is arranged between the locking hook 20 and the floor cross beam 6. The locking hook reinforcing plate 21 is provided with a plurality of longitudinal ribs 210, which are distributed in the transverse direction. The locking hook 20 is fixedly connected to the space between two adjacent longitudinal ribs 210. The locking hook reinforcing plate 21 increases the contact area between the locking hook 20 and the floor cross beam 6. The longitudinal ribs 210 of the locking hook reinforcing plate 21 not only have a mounting and positioning effect, but also ensure the longitudinal structural strength of the locking hook reinforcing plate 21. The longitudinal local contact between the locking hook 20 and the locking hook reinforcing plate 21 is expanded to longitudinal overall stress between the locking hook reinforcing plate 21 and the floor cross beam 6.

[0088] As a further preferred solution, the interior of the transverse channel is further provided with a third reinforcing member 60, the third reinforcing member 60 has a U-shaped cross-sectional profile, the third reinforcing member 60 and the inner side wall of the floor upper cross beam 6 enclose a third reinforcing cavity 600, and the edge of the third reinforcing member 60 is provided with a third flange 601, the third flange 601 is lap-jointed and fixed with the inner side wall of the floor upper cross beam 6. As shown in Figure 10 、 Figure 11 the profile shape of the third reinforcing cavity 600 is box-shaped, which effectively improves the structural strength here and ensures that the floor upper cross beam 6 can effectively force the lock hook 20 to force.

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

[0090] The floor lower cross beam 7 is fixedly connected to the lower side of the floor 5, and the floor upper cross beam 6 and the floor lower cross beam 7 are arranged in an upper-lower relationship. The floor upper cross beam 6 and the floor lower cross beam 7 form an upper-lower fulcrum corresponding relationship, the floor lower cross beam 7 is fixedly connected to the longitudinal beam 4, and a complete force transmission path is formed from the lock hook 20, the floor upper cross beam 6, the floor 5, the floor lower cross beam 7 to the longitudinal beam 4, thereby ensuring the structural strength here. Moreover, the luggage compartment wall 45 covers the side wall and the upper side of the second reinforcing member 42, and the luggage compartment wall 45 and the longitudinal beam 4 enclose a closed cavity for wrapping the first reinforcing member 41 and the second reinforcing member 42, thereby ensuring the closed nature of the interior space of the luggage compartment.

[0091] The automobile of the embodiment of the present application comprises a floor 5, a luggage compartment wall 45 and a reversible seat mounting structure. The floor 5 is fixedly installed 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 of the second reinforcing member 42, and the luggage compartment wall 45 and the longitudinal beam 4 enclose a closed cavity for wrapping the first reinforcing member 41 and the second reinforcing member 42, thereby ensuring the closed nature of the interior space of the luggage compartment. The reversible seat mounting structure is the same as the reversible seat mounting structure in the above specific embodiments, and will not be described here again.

[0092] The above description is only the preferred embodiments of the present application, and it should be noted that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and replacements can be made, and these improvements and replacements should be considered as the protection scope of the present application.

Claims

1. A reversible seat mounting structure, characterised in that, The seat body (1) is arranged on the upper side of the longitudinal beam (4) in a spaced manner, the support structure (3) is fixedly installed on the longitudinal beam (4), and the seat body (1) is rotationally connected with 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 in a spaced manner along the front-rear direction and are fixedly connected with the longitudinal beam (4) respectively; The protruding portion (33) is fixedly connected between the first support plate (31) and the second support plate (32), and the protruding portion (33) is arranged on the upper side of the first support plate (31) and the second support plate (32) in a protruding manner upwardly; The rotation axis of the seat body (1) is arranged on the upper portion of the protruding portion (33), and a triangular support force transmission path is formed from the protruding portion (33) to the first support plate (31) and the second support plate (32); The longitudinal beam (4) is fixedly installed with a first reinforcing member (41), and the first support plate (31) is fixedly connected to the upper side of the first reinforcing member (41); the longitudinal beam (4) is fixedly installed with a second reinforcing member (42), and the second support plate (32) is fixedly connected to the upper side of the second reinforcing member (42).

2. The reversible seat mounting structure according to claim 1, characterized by The first reinforcing member (41) and the longitudinal beam (4) form a first reinforcing cavity.

3. The reversible seat mounting structure according to claim 2, wherein The longitudinal beam (4) comprises a longitudinal beam first segment (401) and a longitudinal beam second segment (402) arranged in a spaced manner along the transverse direction, a groove-shaped channel (40) is formed between the longitudinal beam first segment (401) and the longitudinal beam second segment (402), the longitudinal section profile of the first reinforcing member (41) is in a reverse U shape, and the first reinforcing member (41) is buckled in the groove-shaped channel (40).

4. The reversible seat mounting structure according to claim 3, wherein The upper portion of the first reinforcing member (41) is provided with a first supporting surface, the first supporting surface is provided with a first mounting hole (410), and a first fastener (43) connecting the first support plate (31) and the first supporting surface penetrates through the first mounting hole (410); The edge of the first reinforcing member (41) is provided with a first side turn-up edge (411) and a first upper turn-up edge (414), the first side turn-up edge (411) is lap-jointed and fixed with the side wall of the longitudinal beam (4), and the first upper turn-up edge (414) is lap-jointed and fixed with the upper flange of the longitudinal beam (4).

5. The reversible seat mounting structure according to claim 3 or 4, characterized by The second reinforcing member (42) and the longitudinal beam (4) form a second reinforcing cavity (403).

6. The reversible seat mounting structure of claim 5, wherein The cross-sectional profile of the longitudinal beam second segment (402) is in a stepped shape, and the second reinforcing member (42) is buckled on the inner side of the longitudinal beam second segment (402); The second reinforcing member (42) comprises a horizontal plate (424), a vertical plate (425) and two end plates (426), the horizontal plate (424) is fixedly connected with the vertical plate (425), and the two end plates (426) are arranged on the two sides of the horizontal plate (424) and the vertical plate (425) respectively; The horizontal plate (424) is arranged on the upper side of the second section of the longitudinal beam (402), the vertical plate (425) is arranged on the inner side of the second section of the longitudinal beam (402), and the two end plates (426) are connected to the stepped surface of the second section of the longitudinal beam (402) in abutment.

7. The reversible seat mounting structure of claim 5, wherein The upper portion of the second reinforcing member (42) is provided with a second supporting surface, the second supporting surface is provided with a second mounting hole (420), and a second fastener (44) penetrating through the second mounting hole (420) is arranged to connect the second supporting surface and the second supporting plate (32). The edge of the second reinforcing member (42) is provided with a second side turn-up (421), a second upper turn-up (427) and a second lower turn-up (428), the second side turn-up (421) is lap-jointed and fixed with the side wall of the second section of the longitudinal beam (402), the second upper turn-up (427) is lap-jointed and fixed with the upper flange of the second section of the longitudinal beam (402), and the second lower turn-up (428) is lap-jointed and fixed with the bottom edge of the second section of the longitudinal beam (402).

8. The reversible seat mounting structure according to any one of claims 1 to 4, characterized by The reversible seat mounting structure further comprises a lock catch (2), a lock hook (20) and a floor upper cross beam (6), the lock catch (2) is arranged on the lower side of the seat body (1), and the lock catch (2) is arranged in front of and behind the support structure (3) at intervals. The floor upper cross beam (6) is arranged on the upper side of the floor (5) to form a transverse channel between the floor upper cross beam (6) and the floor (5), the lock hook (20) is fixedly arranged on the upper side of the floor upper cross beam (6), and the lock catch (2) is detachably connected with the lock hook (20).

9. The reversible seat mounting structure of claim 8, wherein, The lock hook (20) and the floor upper cross beam (6) are provided with a lock hook reinforcing plate (21), the lock hook reinforcing plate (21) is provided with a plurality of longitudinal ribs (210), the plurality of longitudinal ribs (210) are distributed at intervals in the transverse direction, and the lock hook (20) is fixedly connected at intervals between two adjacent longitudinal ribs (210).

10. The reversible seat mounting structure of claim 8, wherein The inside of the transverse channel is further provided with a third reinforcing member (60), the third reinforcing member (60) has a U-shaped cross-sectional profile, the third reinforcing member (60) and the inner side wall of the floor upper cross beam (6) form a third reinforcing cavity (600), and the edge of the third reinforcing member (60) is provided with a third turn-up (601), and the third turn-up (601) is lap-jointed and fixed with the inner side wall of the floor upper cross beam (6).

11. An automobile characterized by comprising: The reversible seat mounting structure comprises a floor (5) and the reversible seat mounting structure according to any one of claims 1 to 10, the floor (5) is fixedly arranged 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 vehicle of claim 11, wherein, Further comprising a luggage compartment wall (45), the luggage compartment wall (45) is arranged on the longitudinal beam (4), and the luggage compartment wall (45) and the longitudinal beam (4) form an enclosed cavity for wrapping the first reinforcing member (41) and the second reinforcing member (42).

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