Mounting structure of automobile seat and automobile

Abstract

The utility model discloses a mounting structure of an automobile seat and an automobile, relates to the related technical field of automobiles, and aims to solve the problem that mounting bolts cannot meet the production generalization requirement and are poor in universality. The mounting structure of the automobile seat comprises a seat guide rail, a mounting plate and a fixing plate, wherein a hollow part is arranged on the seat guide rail; the rear floor is arranged below the seat guide rail, and a mounting hole penetrating through the rear floor in the thickness direction of the rear floor is formed in the rear floor; the mounting bolt comprises a head part and a screw rod part which are connected with each other; the movable nut comprises a first part and a second part which are connected; wherein the hollow part can allow the screw part to penetrate through and stop the head part from passing through, the screw part penetrates through the hollow part and the mounting hole and then is connected with the movable nut, and the mounting hole can allow the second part to penetrate through and stop the first part from passing through.

Description

Technical Field

[0001] This application relates to the field of automotive technology, specifically to an installation structure for an automotive seat and an automotive. Background Technology

[0002] The mounting structure of a car seat is used to secure the seat to the vehicle floor. Its design must meet both strength and stability requirements to ensure the seat does not loosen or shift during vehicle movement, acceleration, deceleration, or cornering. Furthermore, the mounting structure of car seats often integrates sliding rails or guide rail systems, allowing the seat to move forward and backward to accommodate occupants of different heights and body types.

[0003] The existing automotive seat mounting structure includes a seat rail and a rear floor connected by mounting bolts. The mounting bolts pass through the seat rail and the rear floor and are connected to nuts. All the nuts are located under the rear floor, which increases the length of the mounting bolts, making it impossible to share mounting bolts with other seats and failing to meet the requirements for production standardization. Utility Model Content

[0004] This application provides an installation structure for an automobile seat and an automobile, which can solve the problem of poor versatility caused by the inability of mounting bolts to meet the requirements of production standardization.

[0005] To achieve the above objectives, on the one hand, the car seat mounting structure provided in this application includes:

[0006] Seat rail, wherein the seat rail has a hollowed-out section;

[0007] The rear floor is located below the seat guide rail and has mounting holes that extend through it along its thickness direction.

[0008] Mounting bolt, the mounting bolt including a connected head and a threaded portion;

[0009] A movable nut, the movable nut comprising a connected first part and a second part;

[0010] The hollow portion allows the screw portion to pass through while blocking the head from passing through. The screw portion passes through the hollow portion and the mounting hole and is connected to the movable nut. The mounting hole allows the second part to pass through while blocking the first part from passing through.

[0011] In some embodiments of this application, the mounting structure of the car seat further includes:

[0012] A pad has a mounting through hole and is supported between the seat guide rail and the rear floor. The mounting through hole is for the screw to pass through.

[0013] In some embodiments of this application, the mounting through hole includes a first hole segment and a second hole segment that are connected. The first hole segment is closer to the rear floor relative to the second hole segment. The diameter of the first hole segment is larger than the outer diameter of the second portion. At least a portion of the second portion is located within the first hole segment and there is a gap between the second portion and the hole wall of the first hole segment.

[0014] In some embodiments of this application, the diameter of the second hole segment is smaller than the diameter of the first hole segment, but larger than the diameter of the screw portion.

[0015] In some embodiments of this application, a stepped connecting surface is formed between the first hole segment and the second hole segment, and the distance between the stepped connecting surface and the rear floor is greater than the distance between the end face of the second part facing away from the first part and the rear floor.

[0016] In some embodiments of this application, the first hole segment has a first hole diameter d1, the second part has a first outer diameter D1, and satisfies: d1 = (1.2 ~ 1.65) × D1.

[0017] In some embodiments of this application, the first hole segment has a first size L1 in the extending direction of the first hole segment, and the pad has a second size L2, satisfying: L1≥0.5×L2.

[0018] In some embodiments of this application, the pad has a welding protrusion on its end face facing the seat guide rail, and the pad is welded to the seat guide rail through the welding protrusion.

[0019] In some embodiments of this application, the mounting structure of the car seat further includes:

[0020] A reinforcing plate is provided on the side of the rear floor facing away from the seat guide rail, and a connecting hole is provided thereon, the connecting hole and the mounting hole being opposite to each other;

[0021] The diameter of the first part of the movable nut is larger than the diameter of the second part, so as to form a stepped surface at the connection between the two, and the stepped surface abuts against the side surface of the reinforcing plate opposite to the rear floor.

[0022] In some embodiments of this application, the mounting structure of the car seat further includes:

[0023] A nut box is located on the side of the rear floor opposite to the seat rail, and the nut box is configured to secure the movable nut to the screw portion.

[0024] Secondly, the vehicles provided in this application include:

[0025] The installation structure of the car seat as described in any of the above technical solutions;

[0026] A seat, which is connected to a seat track.

[0027] This application has at least the following beneficial effects:

[0028] In this technical solution, the first part (large end) of the movable nut faces downwards, and the second part (small end) faces upwards. Compared to a technical solution where the entire movable nut is installed under the rear floor, this design, by placing the second part within the mounting hole, allows for a relatively shorter protrusion length of the screw from the rear floor. This enables better matching with the lengths of other seat mounting bolts (i.e., making them the same length as other seat mounting bolts). This avoids the problem of excessively long mounting bolts that cannot be shared with other seat mounting bolts, thus failing to meet the requirements for production standardization and resulting in poor versatility. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is an assembly drawing of the installation structure of the car seat in the embodiments of this application;

[0031] Figure 2 This is a cross-sectional view of the movable nut in the mounting structure of the car seat in the embodiments of this application;

[0032] Figure 3 This is a front view of the pad block in the mounting structure of the car seat in this embodiment of the application;

[0033] Figure 4 yes Figure 3 The cross-sectional view of section AA in the diagram.

[0034] The main reference numerals in the drawings of this application are explained as follows:

[0035] 1- Seat rail;

[0036] 2- Rear floor;

[0037] 3-Mounting bolt; 31-Head; 32-Threaded rod;

[0038] 4-Modible nut; 41-First part; 42-Second part; 43-Step surface;

[0039] 5-Padded block; 51-Mounting through hole; 511-First hole section; 512-Second hole section; 513-Stepped connection surface; 52-Welding protrusion;

[0040] 6-Reinforcing plate;

[0041] 7-Nut box. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating 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 this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0044] 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0045] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] This application provides an installation structure for a car seat and a car, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, in the following embodiments, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0047] The mounting structure of a car seat is used to secure the seat to the vehicle floor. Its design must meet both strength and stability requirements to ensure the seat does not loosen or shift during vehicle movement, acceleration, deceleration, or cornering. Furthermore, the mounting structure of car seats often integrates sliding rails or guide rail systems, allowing the seat to move forward and backward to accommodate occupants of different heights and body types.

[0048] Reference Figure 1 and Figure 2 The present application provides an installation structure for a car seat, which includes a seat rail 1, a rear floor 2, mounting bolts 3, and movable nuts 4.

[0049] The seat rail 1 has a cutout. The rear floor 2 is located below the seat rail 1 and has a mounting hole extending through its thickness. The mounting bolt 3 includes a connected head 31 and a threaded part 32. The movable nut 4 connects the first part 41 and the second part 42.

[0050] The hollowed-out portion allows the screw portion 32 to pass through while blocking the head 31 from passing through. After passing through the hollowed-out portion and the mounting hole, the screw portion 32 is connected to the movable nut 4. The mounting hole allows the second part 42 to pass through while blocking the first part 41 from passing through.

[0051] In this technical solution, the first part 41 (large end) of the movable nut 4 faces downward and the second part 42 (small end) faces upward. Compared with the technical solution where the movable nut 4 is entirely installed under the rear floor 2, this design, by placing the second part 42 within the mounting hole, allows for a relatively shorter extension length of the screw part 32 beyond the rear floor 2. This enables better matching with the lengths of the mounting bolts 3 of other seats (i.e., the same length as the mounting bolts 3 of other seats). This avoids the problem of the mounting bolts 3 being too long to be shared with other seat mounting bolts 3, failing to meet the requirements of production standardization, and exhibiting poor versatility.

[0052] Specifically, the seat rail 1 is used to fix and adjust the seat position. The cutout is designed to allow the bolt shank 32 to pass through the seat rail 1, thus securing it to the rear floor 2. The cutout design must meet the diameter requirements of the bolt shank 32 and allow sufficient clearance to accommodate manufacturing tolerances and assembly needs. In other words, the cutout is designed to allow the bolt shank 32 to pass through from above while blocking the head 31 from passing through. The head 31 is located on the side of the seat rail 1 facing away from the rear floor 2, serving to lock and prevent it from coming loose. The mounting hole extends along the thickness of the rear floor 2, and its size and shape must match the diameter of the second part 42 of the movable nut 4 to ensure that the second part 42 of the movable nut 4 can enter smoothly.

[0053] In other words, after the movable nut 4 and the screw part 32 are connected, at least part of the screw part 32 extends beyond the lower end of the movable nut 4 to ensure that the thread of the screw part 32 fully enters the internal thread area of ​​the movable nut 4, avoiding a decrease in connection strength due to insufficient thread engagement length. Furthermore, fully engaged threads can better distribute the load, preventing thread damage or dislodgement caused by localized stress concentration, thus ensuring the firmness and reliability of the connection.

[0054] Combination Figure 1 , Figure 3 and Figure 4 The pad 5 has a mounting through hole 51. The pad 5 is supported between the seat rail 1 and the rear floor 2. The mounting through hole 51 allows the screw part 32 to pass through. The pad 5, positioned between the seat rail 1 and the rear floor 2, primarily provides support and isolation, preventing the seat rail 1 from directly contacting the rear floor 2, thereby reducing wear, vibration, and noise. Furthermore, the pad 5 can evenly distribute the load transmitted by the seat rail 1 onto the rear floor 2, preventing localized stress concentration that could lead to floor deformation or damage. In addition, the pad 5 can also be adjusted; by selecting pads 5 of different thicknesses, the gap between the seat rail 1 and the rear floor 2 can be adjusted to ensure the installation accuracy of the seat position.

[0055] The mounting through hole 51 includes a first hole segment 511 and a second hole segment 512 that are connected. The first hole segment 511 is closer to the rear floor 2 than the second hole segment 512. The diameter of the first hole segment 511 is larger than the outer diameter of the second part 42. At least a portion of the second part 42 is located inside the first hole segment 511 and there is a gap between it and the hole wall of the first hole segment 511. This allows the diameter of the first hole segment 511 to be designed to be slightly larger than the diameter of the second part 42, thus avoiding interference between it and the second part 42 of the movable nut 4.

[0056] Optionally, the diameter of the second hole section 512 is smaller than the diameter of the first hole section 511, but larger than the diameter of the screw portion 32. Specifically, the diameter of the second hole section 512 is larger than the diameter of the screw portion 32, which can also be understood as the diameter of the second hole section 512 being slightly larger than the diameter of the screw portion 32, providing a certain margin so that the screw portion 32 can pass smoothly through the mounting through hole 51 without encountering excessive resistance or jamming, avoiding difficulties in installing the screw portion 32 due to machining errors or misalignment during assembly. In addition, the smaller diameter of the second hole section 512 ensures that the connection area of ​​the pad 5 in the second hole section 512 is larger, facilitating its connection with the seat guide rail 1.

[0057] For example, when the top surface of the pad 5 (the end face of the second hole segment 512 facing away from the first hole segment 511) is welded to the seat guide rail 1, the above design helps to increase the welding area between the two. The larger the welding area, the greater the tensile, shear, and impact forces that the connection can withstand, thereby improving the overall strength and load-bearing capacity of the structure. Furthermore, by increasing the welding area, the load can be distributed more evenly, avoiding cracks or weld failures caused by localized stress concentration. For example, to ensure the welding strength between the pad 5 and the seat guide rail 1, a welding protrusion 52 is provided on the end face (top surface) of the pad 5 facing the seat guide rail 1.

[0058] Optionally, a stepped connecting surface 513 is formed between the first hole segment 511 and the second hole segment 512. The distance between the stepped connecting surface 513 and the rear floor 2 is greater than the distance between the end face of the second part 42 facing away from the first part 41 and the rear floor 2, so that the top of the movable nut 4 will not touch the stepped connecting surface 513, avoiding interference between the two. In other words, the top of the movable nut 4 is lower than the stepped connecting surface 513, so that there is a gap between the two in the vertical direction.

[0059] In some embodiments of this application, the first hole segment 511 has a first hole diameter d1, and the second part 42 has a first outer diameter D1, satisfying: d1 = (1.2~1.65) × D1, so as to ensure the structural strength of the pad 5 while ensuring the fault tolerance of the above-mentioned components. For example, if d1 > 1.65 × D1, the wall thickness of the pad 5 at the first hole segment 511 will be thinner, which will reduce the structural strength of the pad 5. If d1 < 1.2 × D1, it is necessary to ensure that the installation accuracy of the above-mentioned components is high during installation, so as to avoid the second part 42 of the movable nut 4 not being able to extend into the first hole segment 511 if the installation accuracy is low.

[0060] In the extending direction of the first hole segment 511, the first hole segment 511 has a first dimension L1, and the pad 5 has a second dimension L2, satisfying: L1≥0.5×L2. By limiting the dimension of the pad 5 in the thicker part of its wall, the structural strength of the pad 5 is guaranteed.

[0061] In some embodiments of this application, the mounting structure of the car seat further includes a reinforcing plate 6. The reinforcing plate 6 is located on the side of the rear floor 2 facing away from the seat guide rail 1, and has a connecting hole thereon, which is opposite to the mounting hole. The diameter of the first part 41 of the movable nut 4 is larger than the diameter of the second part 42, forming a stepped surface 43 at their connection. The stepped surface 43 abuts against the surface of the reinforcing plate 6 facing away from the rear floor 2, thereby allowing the movable nut 4 to extend into the connecting hole and the mounting hole. This method is easy to implement. Furthermore, the reinforcing plate 6 significantly improves the overall structural strength of the rear floor 2 by increasing its thickness and support, especially under vertical loads or impacts. This design prevents the rear floor 2 from deforming, sinking, or cracking during use, ensuring the long-term durability of the vehicle or equipment.

[0062] Furthermore, the movable nut 4 is divided into two parts. The first part 41 has a relatively large diameter and is located below the rear floor 2. Its large diameter provides a larger stress-bearing area to distribute pressure and prevent damage to the rear floor 2. The second part 42 has a smaller diameter and is located in the mounting hole, engaging with the threaded screw part 32. This structure, through the two-part diameter design of the nut, can improve the strength and stability of the connection, while preventing damage to the rear floor 2 (and the reinforcing plate 6) due to excessive pressure.

[0063] In some embodiments of this application, the mounting structure of the car seat further includes a nut box 7, which is located on the side of the rear floor 2 opposite to the seat guide rail 1. The nut box 7 is configured to fix the movable nut 4 to the screw portion 32. Using the above method, the nut box 7 can fix the movable nut 4 in a specific position, preventing the movable nut 4 from rotating due to tightening or loosening of the connecting bolts during installation or use. Especially in situations of unilateral operation or limited space, the fixing function of the nut box 7 avoids the need for unilateral operation (such as using tools to fix the nut), making alignment between the connecting bolts and the movable nut 4 more convenient and improving installation efficiency.

[0064] For example, the nut box 7 may have a groove or hole (such as a hexagon or quadrilateral) inside that matches the shape of the movable nut 4. The movable nut 4 is then inserted into this groove and fits tightly against the inner wall of the nut box 7 to secure it within the box. Alternatively, the inner wall of the nut box 7 may apply a clamping force to the movable nut 4 through an elastic material (such as rubber or a spring sheet) or a tight accommodating space, thus keeping the movable nut 4 stable. Alternatively, the nut box 7 may have a snap-fit ​​structure that, when the movable nut 4 is installed in place, engages a portion of the movable nut 4 (such as a corner or lower edge), thereby restricting its position.

[0065] Secondly, this application also provides a car, which includes a car seat mounting structure and a seat as described in any of the above technical solutions, the seat being connected to a seat rail. Since the car seat mounting structure in the car provided by this application has the same structure as the car seat mounting structure described in any of the above technical solutions, both can solve the same technical problem and achieve the same technical effect.

[0066] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0067] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims. Furthermore, specific examples have been used in the specification to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application, and the content of this specification should not be construed as a limitation of this application.

Claims

1. A mounting structure for a car seat, characterized in that, include: Seat rail, wherein the seat rail has a hollowed-out section; The rear floor is located below the seat guide rail and has mounting holes that extend through it along its thickness direction. Mounting bolt, the mounting bolt including a connected head and a threaded portion; A movable nut, the movable nut comprising a connected first part and a second part; The hollow portion allows the screw portion to pass through while blocking the head from passing through. The screw portion passes through the hollow portion and the mounting hole and is connected to the movable nut. The mounting hole allows the second part to pass through while blocking the first part from passing through.

2. The installation structure of the automobile seat according to claim 1, characterized in that, Also includes: A pad has a mounting through hole and is supported between the seat guide rail and the rear floor. The mounting through hole is for the screw to pass through.

3. The installation structure of the automobile seat according to claim 2, characterized in that, The mounting through hole includes a first hole segment and a second hole segment that are connected. The first hole segment is closer to the rear floor relative to the second hole segment. The diameter of the first hole segment is larger than the outer diameter of the second hole segment. At least a portion of the second hole segment is located within the first hole segment and there is a gap between the second hole segment and the hole wall of the first hole segment.

4. The installation structure of the automobile seat according to claim 3, characterized in that, The diameter of the second hole is smaller than that of the first hole and larger than that of the screw section.

5. The mounting structure for a car seat according to claim 3 or 4, characterized in that, A stepped connecting surface is formed between the first hole segment and the second hole segment, and the distance between the stepped connecting surface and the rear floor is greater than the distance between the end face of the second part facing away from the first part and the rear floor.

6. The installation structure of the automobile seat according to claim 3, characterized in that, The first hole segment has a first hole diameter d1, and the second part has a first outer diameter D1, satisfying: d1=(1.2~1.65)×D1.

7. The installation structure of the automobile seat according to claim 3, characterized in that, In the extending direction of the first hole segment, the first hole segment has a first size L1, and the pad has a second size L2, satisfying: L1≥0.5×L2.

8. The mounting structure for a car seat according to claim 2, 3, or 4, characterized in that, The pad has a welding protrusion on its end face facing the seat guide rail, and the pad is welded to the seat guide rail through the welding protrusion.

9. The mounting structure for a car seat according to claim 1, characterized in that, Also includes: A reinforcing plate is provided on the side of the rear floor facing away from the seat guide rail, and a connecting hole is provided thereon, the connecting hole and the mounting hole being opposite to each other; The diameter of the first part of the movable nut is larger than the diameter of the second part, so as to form a stepped surface at the connection between the two, and the stepped surface abuts against the side surface of the reinforcing plate opposite to the rear floor.

10. The mounting structure for a car seat according to claim 1, characterized in that, Also includes: A nut box is located on the side of the rear floor opposite to the seat rail, and the nut box is configured to secure the movable nut to the screw portion.

11. A car, characterized in that, include: The mounting structure of the automobile seat as described in any one of claims 1 to 10 above; A seat, which is connected to a seat track.

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