Cushion mounting and fixing structure and seat

Abstract

The utility model relates to the technical field of vehicle seats, and discloses a seat cushion mounting and fixing structure and a seat, according to the scheme, a mounting plate for fixing a seat cushion is directly mounted on a seat frame, so that a seat cushion framework is clamped with a connecting piece through a first clamping piece connected with the seat cushion framework, and then the seat cushion framework is clamped with the mounting plate through the clamping connection between the connecting piece and the mounting plate; the cushion framework is fixedly mounted on the seat frame; when the height of the seat needs to be adjusted, the height of the seat can be adjusted only by adjusting the height of the seat mounting feet; and meanwhile, when the seat is disassembled and assembled, the mounting plate does not need to be disassembled, and the bad problems of looseness, deformation and the like of the mounting plate cannot be caused.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle seat technical field, in particular to a seat cushion mounting and fixing structure and seat. BACKGROUND

[0002] At present, when fixing the seat cushion on the seat in the vehicle, mounting support is arranged on the floor in the vehicle, then the seat cushion framework in the seat cushion is connected with the mounting support arranged on the floor, so that the seat cushion is fixed and installed on the seat. The above-mentioned installation method causes inconvenience in installation of the seat. When the height of the seat needs to be adjusted, the size of the mounting support also needs to be adjusted synchronously. Moreover, after the seat is disassembled and assembled for many times, the mounting support is deformed and loose. If the height of the mounting support needs to be increased, reinforcing strips need to be arranged, which increases the cost of the vehicle. SUMMARY

[0003] The utility model aims at providing a seat cushion mounting and fixing structure and seat, which solves the problem of inconvenience in installation of the seat cushion and increase in the cost of the vehicle caused by the traditional fixing method of the seat cushion.

[0004] In order to achieve the above-mentioned purpose, in the first aspect, the application provides a seat cushion mounting and fixing structure for fixing the seat cushion on the seat frame. The seat cushion has a seat cushion framework, which comprises:

[0005] A first clamping member is installed on the seat cushion framework.

[0006] An installation plate is connected to the seat frame. The installation plate is provided with an opening along the height direction of the seat frame.

[0007] A connecting member is arranged in the opening. The connecting member is clamped on the installation plate. The first clamping member is clamped with the connecting member, so that the seat cushion framework is fixed on the seat frame.

[0008] In some embodiments of the application, the connecting member has a receiving cavity. The receiving cavity has a second clamping member clamped with the first clamping member. The first clamping member is inserted into the receiving cavity to a predetermined position, so that the first clamping member is clamped with the second clamping member, and the connecting member is installed on the seat cushion framework.

[0009] The outer periphery of the connecting member has a third clamping member. The connecting member is inserted into the opening and moved to a predetermined position, so that the third clamping member is clamped with the installation plate.

[0010] In some embodiments of the application, the seat cushion mounting and fixing structure has X direction, Y direction and Z direction intersecting with each other.

[0011] The second clamping member comprises two elastic clamping portions, which are correspondingly connected to two side walls oppositely arranged along the X direction in the accommodating cavity; the two elastic clamping portions are arranged at intervals along the X direction to form a clamping cavity between the two elastic clamping portions;

[0012] The upper end of the clamping cavity has a first through hole, the width of the first through hole is h along the X direction, the width of the clamping cavity is H, and H is greater than h; the two elastic clamping portions respectively have avoiding cavities on the opposite sides;

[0013] Along the Z direction, the first clamping member is driven to move downward and press the two elastic clamping portions, so that the elastic clamping portions are deformed towards the avoiding cavities corresponding to the elastic clamping portions, so that the first clamping member passes through the first through hole and is clamped in the clamping cavity.

[0014] In some embodiments of the present application, the elastic clamping portion comprises a first clamping portion connected to the side wall in the accommodating cavity and a second clamping portion connected to the bottom of the first clamping portion;

[0015] Along the X direction, the region between the two second clamping portions constitutes the clamping cavity, and the two first clamping portions respectively have first inclined surfaces on the opposite sides, the two first inclined surfaces are arranged to incline towards each other from top to bottom, and the region between the bottoms of the two first inclined surfaces constitutes the first through hole.

[0016] In some embodiments of the present application, the first clamping member comprises a clamping rod and two connecting rods, the clamping rod is used for clamping in the clamping cavity;

[0017] The clamping rod extends along the Y direction, the two connecting rods are arranged at intervals along the Y direction, and the two ends of the clamping rod along the Y direction are correspondingly connected to the bottoms of the two connecting rods, and the upper ends of the two connecting rods are used for connecting the cushion framework.

[0018] In some embodiments of the present application, the third clamping member comprises an upper clamping portion and a lower clamping portion located below the upper clamping portion;

[0019] The connecting member is driven to be inserted into the opening from top to bottom, so that the lower clamping portion passes through the opening, and the mounting plate is clamped between the upper clamping portion and the lower clamping portion, so as to fix the connecting member on the mounting plate.

[0020] In some embodiments of the present application, the upper clamping portion surrounds the outer periphery of the connecting member, and the upper clamping portion extends away from the connecting member;

[0021] The connecting piece side wall is provided with at least one mounting hole which is communicated with the outside and the accommodating cavity, the number of the lower clamping parts is matched with the number of the mounting holes, the bottom of the lower clamping part is connected to the bottom wall of the mounting hole, the lower clamping part has a second inclined surface which protrudes outward from the mounting hole, and the second inclined surface is arranged to be inclined from bottom to top and away from the mounting hole in the Z direction; in the Z direction, the projection of the lower clamping part is located outside the opening.

[0022] The connecting piece is inserted into the opening from top to bottom, so that the opening wall presses on the second inclined surface and drives the lower clamping part to deform towards the accommodating cavity, so that the lower clamping part passes through the opening.

[0023] In some embodiments of the present application, the inner side wall of the accommodating cavity is connected with a reinforcing rib plate, the reinforcing rib plate extends along the Z direction, and a plurality of reinforcing rib plates are arranged at intervals around the circumferential side of the accommodating cavity.

[0024] In some embodiments of the present application, the seat cushion mounting and fixing structure further comprises a plurality of reinforcing plates, the plurality of reinforcing plates are connected to the lower end surface of the mounting plate, and the plurality of reinforcing plates are connected in sequence around the circumferential side of the mounting plate; the plurality of reinforcing plates form a reinforcing frame, and the reinforcing frame is connected with the seat frame.

[0025] In a second aspect, the embodiments of the present application provide a seat comprising the seat cushion mounting and fixing structure described in the above embodiments.

[0026] Compared with the prior art, the seat cushion mounting and fixing structure and the seat of the embodiments of the present application have the following beneficial effects: the mounting plate for fixing the seat cushion is directly mounted on the seat frame, so that the seat cushion framework is clamped by the first clamping part and the connecting piece, and then the seat cushion framework is fixedly mounted on the seat frame through the clamping connection between the connecting piece and the mounting plate; when the height of the seat needs to be adjusted, the height of the seat mounting foot is only needed to be adjusted to realize the adjustment of the height of the seat; and when the seat is disassembled, the mounting plate does not need to be disassembled, so that the mounting plate will not be loosened or deformed. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic view of the connection relationship between the seat cushion framework and the first clamping part of the present application;

[0028] Figure 2 It is a schematic view of the connection relationship between the seat cushion framework and the first clamping part of the present application; Figure 1 It is an enlarged schematic view of the structure at A in the present application;

[0029] Figure 3 It is a schematic view of the connecting piece structure of the present application;

[0030] Figure 4 is another view of the connecting piece of the utility model structure schematic diagram;

[0031] Figure 5 is the internal structure schematic diagram after the connecting piece of the utility model is cut open;

[0032] Figure 6 is the state schematic diagram of the first clamping piece of the utility model being inserted into the accommodating cavity;

[0033] Figure 7 is the state schematic diagram of the first clamping piece of the utility model being pressed on the first inclined surface;

[0034] Figure 8 is the state schematic diagram of the first clamping piece of the utility model being clamped in the clamping cavity;

[0035] Figure 9 is the state schematic diagram of the connecting piece of the utility model being clamped on the mounting plate;

[0036] Figure 10 is the schematic diagram of the connection relationship between the mounting plate and the seat frame of the utility model;

[0037] Figure 11 is another view of the connecting piece of the utility model structure schematic diagram;

[0038] Figure 12 is the schematic diagram of the connection relationship between the mounting plate, the reinforcing plate and the seat frame of the utility model.

[0039] In the figure, 1, seat frame;

[0040] 2, cushion framework;

[0041] 3, first clamping piece;31, clamping rod;32, connecting rod;

[0042] 4, mounting plate;41, opening;

[0043] 5, connecting piece;51, reinforcing rib plate;52, accommodating cavity;521, avoiding cavity;53, second clamping piece;531, elastic clamping part;5311, first clamping part;53111, first inclined surface;5312, second clamping part;532, clamping cavity;533, first via hole;54, third clamping piece;541, upper clamping part;542, lower clamping part;5421, second inclined surface;55, mounting hole;

[0044] 6, reinforcing plate. DETAILED DESCRIPTION

[0045] The specific embodiments of the utility model are described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but are not used to stop the range of the utility model.

[0046] In the description of the utility model, it needs to be understood that the directions or position relations indicated by the terms "upper", "lower", "left", "right", "front", "back", "top" and "bottom" are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. It should be understood that the utility model uses the terms "first", "second" and the like to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information can also be referred to as "second" information without departing from the scope of the utility model, and similarly, the "second" information can also be referred to as "first" information.

[0047] As shown in Figures 1-12 In the first aspect, the embodiment of the application provides a seat cushion mounting and fixing structure for fixing a seat cushion on a seat frame 1. The seat cushion has a seat cushion framework 2, which comprises a first clamping piece 3, a mounting plate 4 and a connecting piece 5. The first clamping piece 3 is fixedly connected with the seat cushion framework 2. The mounting plate 4 is fixedly mounted on the seat frame 1 (the mounting plate 4 is welded to the seat frame 1). Along the height direction of the seat frame 1, an opening 41 is provided through the mounting plate 4. The connecting piece 5 is arranged in the opening 41 and is used for clamping and fixing the connecting piece 5 on the mounting plate 4. The first clamping piece 3 is clamped and connected with the connecting piece 5, so as to realize the mounting and fixing of the seat cushion framework 2 connected with the first clamping piece 3 on the mounting plate 4 (i.e. on the seat frame 1).

[0048] In the present scheme, the mounting plate 4 for fixing the seat cushion framework 2 is directly mounted on the seat frame 1, so that the seat cushion framework 2 is directly connected with the seat frame 1 as a whole, improving the flexibility of seat installation. When the height of the seat needs to be adjusted, the height of the mounting foot of the seat only needs to be adjusted. At the same time, when the seat is disassembled, the mounting plate 4 does not need to be removed, avoiding the loosening and deformation of the mounting plate 4 caused by the disassembly of the seat, improving the fixing strength of the seat cushion. At the same time, since the mounting plate 4 does not need to be removed when the seat is disassembled, the deformation and loosening (reduction of structural strength) of the mounting plate 4 caused by the synchronous disassembly of the mounting plate 4 during the disassembly of the seat are avoided, and an additional reinforcing strip needs to be additionally arranged on the mounting plate 4, which leads to an increase in development cost. Compared with the traditional method of directly fixing the mounting plate 4 for fixing the seat cushion framework 2 on the vehicle floor, the flexibility of seat installation is greatly improved, and the whole vehicle cost is reduced.

[0049] In some embodiments of the application, as Figure 6As shown, the connecting piece 5 has a receiving cavity 52, and the receiving cavity 52 has a second clamping piece 53 clamped with the first clamping piece 3, the first clamping piece 3 is inserted into the receiving cavity 52 to a predetermined position, and the first clamping piece 3 is clamped with the second clamping piece 53, so as to install the connecting piece 5 on the cushion framework 2. Figure 4 , Figure 5 As shown, the outer periphery of the connecting piece 5 has a third clamping piece 54, and the connecting piece 5 is inserted into the opening 41 and moved to a predetermined position, so that the third clamping piece 54 is clamped with the mounting plate 4.

[0050] As shown, Figures 6-8 the first clamping piece 3 is inserted into the receiving cavity 52 and moved to a predetermined position, so that the first clamping piece 3 is clamped and connected with the second clamping piece 53 arranged in the receiving cavity 52, thereby realizing the connection between the connecting piece 5 and the cushion framework 2, and the connecting piece 5 and the cushion framework 2 are combined into a whole.

[0051] In some embodiments of the present application, as shown, Figure 1 , Figure 3 the cushion mounting and fixing structure has X, Y and Z directions intersecting with each other; as shown, Figure 5 the second clamping piece 53 includes two elastic clamping parts 531, and the two elastic clamping parts 531 are correspondingly connected to two side walls arranged opposite to each other along the X direction in the receiving cavity 52; in the X direction, the two elastic clamping parts 531 are arranged at intervals to form a clamping cavity 532 between the two elastic clamping parts 531; the upper end of the clamping cavity 532 has a first through hole 533, and in the X direction, the width of the first through hole 533 is h, and the width of the clamping cavity 532 is H, H is greater than h; the two elastic clamping parts 531 have avoiding cavities 521 respectively on the opposite sides; as shown, Figure 6 , Figure 7 in the Z direction, the first clamping piece 3 is driven to move downward and press the two elastic clamping parts 531, so that the elastic clamping parts 531 deform towards the avoiding cavities 521 corresponding thereto, so that the width of the first through hole 533 in the X direction increases, so that the first clamping piece 3 can pass through the first through hole 533 and enter the clamping cavity 532 located below the first through hole 533, when the first clamping piece 3 passes through the first through hole 533, the two elastic clamping parts 531 are no longer pressed by the first clamping piece 3, and then deform towards the direction away from the avoiding cavities 521 corresponding thereto (at this time, the width of the first through hole 533 in the X direction returns to the initial level), thereby realizing the clamping of the first clamping piece 3 in the clamping cavity 532, and realizing the connection between the first clamping piece 3 and the connecting piece 5.

[0052] In some embodiments of the present application, as shown, Figure 5As shown, the elastic snap-fit ​​portion 531 includes a first snap-fit ​​portion 5311 connected to the inner wall of the receiving cavity 52 and a second snap-fit ​​portion 5312 connected to the bottom of the first snap-fit ​​portion 5311; in the X direction, the area between the two second snap-fit ​​portions 5312 forms a snap-fit ​​cavity 532, and the two first snap-fit ​​portions 5311 each have a first inclined surface 53111 on the opposite side, and the two first inclined surfaces 53111 are inclined from top to bottom in a direction that approaches each other, and the area between the bottoms of the two first inclined surfaces 53111 forms a first through hole 533.

[0053] like Figures 6-8 The diagram shows the process of the first snap-fit ​​member 3 and the second snap-fit ​​member 53 in the receiving cavity 52 engaging. The first snap-fit ​​member 3 moves downward in the Z direction, so that the first snap-fit ​​member 3 first contacts the two first inclined surfaces 53111 and squeezes the two first snap-fit ​​parts 5311, causing the two first snap-fit ​​parts 5311 to deform in a direction away from each other (the clearance cavity 521 provides space for the deformation of the first snap-fit ​​parts 5311 and the second snap-fit ​​parts 5312), which increases the width of the first through hole 533, allowing the first snap-fit ​​member 3 to pass through the first through hole 533 and enter the snap-fit ​​cavity 532. After the first snap-fit ​​member 3 passes through the first through hole 533, the two first snap-fit ​​parts 5311 are no longer squeezed and recover their deformation in a direction closer to each other, so that the first through hole 533 returns to its initial state, thereby snapping the first snap-fit ​​member 3 into the snap-fit ​​cavity 532.

[0054] In some embodiments of this application, such as Figure 1 , Figure 2 As shown, the first snap-fit ​​component 3 includes a snap-fit ​​rod 31 and two connecting rods 32. The snap-fit ​​rod 31 is used to snap into the snap-fit ​​cavity 532. The snap-fit ​​rod 31 extends along the Y direction, and the two connecting rods 32 are spaced apart along the Y direction. The two ends of the snap-fit ​​rod 31 along the Y direction are respectively connected to the bottom of the two connecting rods 32. The upper ends of the two connecting rods 32 are used to connect with the seat cushion frame 2. In this solution, the connection between the connecting rod 32 and the snap-fit ​​rod 31, as well as the connection between the connecting rod 32 and the seat cushion frame 2, are all fixed by welding.

[0055] like Figures 6-8 As shown, the first snap-fit ​​member 3 is driven to move from top to bottom, causing the snap-fit ​​rod 31 to first abut against the two first inclined surfaces 53111, and forcing the first snap-fit ​​member 3 to deform toward the relief cavity 521, thereby increasing the width of the first through hole 533, and allowing the snap-fit ​​rod 31 to pass through the first through hole 533 from top to bottom, until the snap-fit ​​rod 31 enters the snap-fit ​​cavity 532 below, thus realizing the snap-fit ​​connection between the first snap-fit ​​member 3 and the second snap-fit ​​member 53. At this time, with the cooperation of the snap-fit ​​cavity 532 and the first through hole 533, the snap-fit ​​rod 31 cannot be withdrawn upward.

[0056] In some embodiments of the present application, as shown in Figure 3 , Figure 4 the third clamping part 54 comprises an upper clamping part 541 and a lower clamping part 542 located below the upper clamping part 541; as shown in Figure 9 the driving connection part 5 is inserted into the opening 41 from top to bottom, so that the lower clamping part 542 passes through the opening 41, and the mounting plate 4 is clamped between the upper clamping part 541 and the lower clamping part 542, so as to fix the connection part 5 on the mounting plate 4.

[0057] In some embodiments of the present application, the upper clamping part 541 is arranged around the outer periphery of the connection part 5, and the upper clamping part 541 extends away from the connection part 5; the side wall of the connection part 5 is provided with at least one mounting hole 55, the mounting hole 55 is communicated with the outside and the accommodating cavity 52, the number of the lower clamping part 542 is matched with the number of the mounting hole 55, and the bottom of the lower clamping part 542 is connected to the bottom wall of the mounting hole 55, as shown in Figure 4 the lower clamping part 542 has a second inclined surface 5421 protruding outwardly from the mounting hole 55, and the second inclined surface 5421 is arranged from bottom to top and inclined away from the mounting hole 55; in the Z direction, the projection of the lower clamping part 542 is located outside the opening 41; the driving connection part 5 is inserted into the opening 41 from top to bottom, so that the wall of the opening 41 presses against the second inclined surface 5421, and the lower clamping part 542 is deformed towards the accommodating cavity 52, so that the lower clamping part 542 passes through the opening 41; after the lower clamping part 542 passes through the opening 41, the lower clamping part 542 is no longer subjected to the extrusion force from the wall of the opening 41, so that the lower clamping part 542 recovers the deformation, as shown in Figure 9 so that the mounting plate 4 is clamped between the upper clamping part 541 and the lower clamping part 542, thereby achieving the clamping and fixing of the connection part 5 on the mounting plate 4.

[0058] In some embodiments of the present application, as shown in Figure 5 the inner side wall of the accommodating cavity 52 is connected with a reinforcing rib plate 51, the reinforcing rib plate 51 extends in the Z direction, and a plurality of reinforcing rib plates 51 are arranged around the circumferential side of the accommodating cavity 52, the reinforcing rib plate 51 is arranged for improving the structural strength of the connection part 5, so as to ensure the connection stability between the cushion framework 2 and the seat frame 1.

[0059] In some embodiments of the present application, as shown in Figure 10 , Figure 12As shown, the cushion mounting and fixing structure further comprises a plurality of reinforcing plates 6 connected to the lower end face of the mounting plate 4 and sequentially connected around the circumferential side of the mounting plate 4, the plurality of reinforcing plates 6 are sequentially connected head to tail to form a reinforcing frame, and the reinforcing frame is connected with the seat frame 1, the arrangement of the plurality of reinforcing plates 6 further improves the structural strength of the mounting plate 4, and also improves the connection strength between the mounting plate 4 and the seat frame 1, and further improves the reliable and stable connection between the cushion framework 2 and the seat frame 1.

[0060] In a second aspect, the embodiment of the present application provides a seat comprising the cushion mounting and fixing structure in the above embodiment.

[0061] The working process of the utility model is as follows: first, the first clamping piece 3 and the second clamping piece 53 arranged in the accommodating cavity 52 of the connecting piece 5 are clamped, the connecting piece 5 is clamped on the cushion framework 2, then the connecting piece 5 is clamped on the mounting plate 4, the third clamping piece 54 arranged on the connecting piece 5 is used to clamp and fix the connecting piece 5 on the mounting plate 4, and then the cushion framework 2 is clamped and fixed on the seat frame 1.

[0062] In conclusion, the embodiment of the utility model provides a cushion mounting and fixing structure and a seat, the mounting plate 4 for fixing the cushion is directly mounted on the seat frame 1, the cushion framework 2 is clamped with the connecting piece 5 through the first clamping piece 3 connected with the cushion framework 2, then the connecting piece 5 is clamped and connected with the mounting plate 4, the cushion framework 2 is fixed and mounted on the seat frame 1, when the height of the seat needs to be adjusted, the height of the seat mounting foot is adjusted to realize the adjustment of the height of the seat, and when the seat is disassembled, the mounting plate 4 does not need to be disassembled, and the mounting plate 4 will not be loose or deformed.

[0063] The above only describes the preferred embodiments of the utility model, and it should be noted that for ordinary skilled persons in the technical field, some improvements and replacements can be made without departing from the technical principles of the utility model, and these improvements and replacements should also be regarded as the protection range of the utility model.

Claims

1. A cushion mounting and fixing structure for fixing a cushion to a seat frame (1), said cushion having a cushion framework (2), characterized by, The seat cushion mounting structure comprises: a first clamping member (3) mounted on the seat cushion framework (2); a mounting plate (4) connected to the seat frame (1), the mounting plate (4) being provided with an opening (41) along the height direction of the seat frame (1); a connecting member (5) inserted into the opening (41) and clamped to the mounting plate (4), the first clamping member (3) being clamped to the connecting member (5) to fix the seat cushion framework (2) to the seat frame (1).

2. The seat cushion mounting structure according to claim 1, wherein the seat cushion mounting structure has X, Y and Z directions intersecting with each other; the connecting member (5) has a receiving cavity (52) therein, and the receiving cavity (52) has a second clamping member (53) therein clamped to the first clamping member (3), the first clamping member (3) being inserted into the receiving cavity (52) to a predetermined position to clamp the first clamping member (3) to the second clamping member (53) to mount the connecting member (5) to the seat cushion framework (2); the outer periphery of the connecting member (5) has a third clamping member (54) to insert the connecting member (5) into the opening (41) and move to a predetermined position to clamp the third clamping member (54) to the mounting plate (4).

3. The seat cushion mounting structure according to claim 2, wherein the second clamping member (53) comprises two elastic clamping portions (531) connected to two side walls of the receiving cavity (52) opposite to each other along the X direction; the two elastic clamping portions (531) are spaced apart along the X direction to form a clamping cavity (532) therebetween; the upper end of the clamping cavity (532) has a first through hole (533) having a width h along the X direction, the width of the clamping cavity (532) being H, and H is greater than h; the two elastic clamping portions (531) have avoiding cavities (521) respectively at opposite sides thereof; the first clamping member (3) is driven to move downward and press the two elastic clamping portions (531) along the Z direction, so that the elastic clamping portions (531) are deformed towards the avoiding cavities (521) corresponding thereto to pass through the first through hole (533) and be clamped in the clamping cavity (532). the elastic clamping portion (531) comprises a first clamping portion (5311) connected to the side wall of the receiving cavity (52), and a second clamping portion (5312) connected to the bottom of the first clamping portion (5311). ​ 4. The seat cushion mounting and securing structure according to claim 3, characterized by ​ In the X direction, the area between the two second clamping portions 5312 constitutes the clamping cavity 532, and the two first clamping portions 5311 are respectively provided with first inclined surfaces 53111 on the side facing each other, the two first inclined surfaces 53111 are arranged from top to bottom in a direction approaching each other, and the area between the bottoms of the two first inclined surfaces 53111 constitutes the first via hole 533.

5. The seat cushion mounting and securing structure according to claim 4, wherein The first clamping piece 3 comprises a clamping rod 31 and two connecting rods 32, the clamping rod 31 is used for clamping in the clamping cavity 532; The clamping rod 31 extends along the Y direction, the two connecting rods 32 are arranged at intervals along the Y direction, and the two ends of the clamping rod 31 along the Y direction are respectively connected with the bottoms of the two connecting rods 32, and the upper ends of the two connecting rods 32 are used for connecting with the cushion framework 2.

6. The seat cushion mounting and securing structure according to claim 2, wherein The third clamping piece 54 comprises an upper clamping portion 541 and a lower clamping portion 542 located below the upper clamping portion 541; The connecting piece 5 is driven to be inserted into the opening 41 from top to bottom, so that the lower clamping portion 542 passes through the opening 41, and the mounting plate 4 is clamped between the upper clamping portion 541 and the lower clamping portion 542, for fixing the connecting piece 5 on the mounting plate 4.

7. The seat cushion mounting and securing structure according to claim 6, wherein The upper clamping portion 541 surrounds the outer periphery of the connecting piece 5, and the upper clamping portion 541 extends away from the connecting piece 5; The side wall of the connecting piece 5 is provided with at least one mounting hole 55, the mounting hole 55 is communicated with the outside and the containing cavity 52, the number of the lower clamping portion 542 matches the number of the mounting hole 55, the bottom of the lower clamping portion 542 is connected to the bottom wall of the mounting hole 55, the lower clamping portion 542 has a second inclined surface 5421 protruding outward from the mounting hole 55, and the second inclined surface 5421 is arranged from bottom to top in a direction away from the mounting hole 55; in the Z direction, the projection of the lower clamping portion 542 is located outside the opening 41; The connecting piece 5 is inserted into the opening 41 from top to bottom, so that the wall of the opening 41 is pressed against the second inclined surface 5421, and the lower clamping portion 542 is deformed towards the containing cavity 52, so that the lower clamping portion 542 passes through the opening 41.

8. The seat cushion mounting and securing structure according to claim 2, wherein The inner side wall of the containing cavity 52 is connected with a reinforcing rib plate 51, the reinforcing rib plate 51 extends along the Z direction, and a plurality of reinforcing rib plates 51 are arranged at intervals around the circumferential side of the containing cavity 52.

9. The seat cushion mounting and securing structure according to any one of claims 1 to 8, characterized by, The seat cushion mounting and fixing structure further comprises a plurality of reinforcing plates (6), the plurality of reinforcing plates (6) are connected to the lower end surface of the mounting plate (4), and the plurality of reinforcing plates (6) are sequentially connected around the circumferential side of the mounting plate (4); the plurality of reinforcing plates (6) form a reinforcing frame, and the reinforcing frame is connected with the seat frame (1).

10. A seat, characterized by The seat cushion mounting and fixing structure comprises the seat cushion mounting and fixing structure according to any one of claims 1-9.

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