Seat structure with seat belt height adjustment function and automobile

Abstract

The utility model belongs to the field of safety belt, provide a seat structure and car with safety belt height adjusting function, include: safety belt insert piece, activity is established in seat, safety belt insert piece includes and adjusts high spare, the orientation of out belt mouth and seat is one angle of clamping, the one end of adjusting high spare is connected with out belt mouth, the other end is assembled on seat with sliding, to drive out belt mouth moves along seat height direction. Compared with prior art, the utility model's advantage lies in through adjusting high spare and seat sliding assembly, user can adjust out belt mouth position according to own height and sitting posture freely, and then ensure that in the face of different body type driver and passenger, can guarantee safety belt from the shoulder above natural, the extension of the chest position in place, effectively avoid traditional adjustable safety belt in the extreme adjustment position when the phenomenon of pressing shoulder or pressing neck, significantly improve the adaptability to different body type passenger, enhance the restraint stability and ride comfort in the process of collision.

Description

Technical Field

[0001] This utility model belongs to the field of seat belts, specifically relating to a seat structure and automobile with seat belt height adjustment function. Background Technology

[0002] As the requirements for automotive safety performance continue to improve, seat belts, as one of the most important passive safety devices, are receiving increasing attention for their wearing comfort and restraint effectiveness. When passengers of different heights and body types are riding in a vehicle, if the shoulder anchor point of the seat belt is not positioned properly, the seat belt may strangle the neck or come off under the armpit, seriously affecting the restraint effect and even causing secondary injuries.

[0003] In existing technology, most vehicles are equipped with seat belt height adjustment devices at the B-pillar, which are mainly used to switch the seat belt anchor point between several fixed positions by manually pressing an unlock button. However, this type of structure has the following drawbacks: the unlocking force is too high, making the adjustment method inconvenient, and when not adjusted, the seat belt outlet cannot maintain the designed angle, resulting in a large belt extension force. This can easily cause secondary injuries during sudden braking or stopping, namely, shoulder stress when the seat belt is too low, or neck injury when the seat belt is too high. Therefore, existing seat belt height adjustment devices require frequent adjustments by different users, making it difficult to quickly adapt to the driving and riding needs of different occupants. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a seat structure and automobile with seat belt height adjustment function that is simple in structure, has good stability, and can ensure a constant seat belt angle.

[0005] The purpose of this utility model can be achieved by addressing the following technical problem: proposing a seat structure with seat belt height adjustment function, comprising: a seat belt insert, movably disposed on the seat, the seat belt insert including a belt outlet and a height adjustment component, the belt outlet being oriented at an angle to the seat; one end of the height adjustment component being connected to the belt outlet, and the other end being slidably mounted on the seat to drive the belt outlet to move along the height direction of the seat;

[0006] The adjustment member can move relative to the seat to accommodate users of different body types, thereby adjusting the relative position between the seat belt outlet and the user, so that the seat belt pulled out from the outlet is always close to the front of the user.

[0007] In the aforementioned seat structure with seat belt height adjustment function, the seat belt insert includes a cover body and an outlet cover. The cover body is used to guide the seat belt to move toward the outlet cover. The outlet cover is movably engaged with the cover body and together with the cover body forms the seat belt outlet.

[0008] In the aforementioned seat structure with seat belt height adjustment function, a mounting groove and a guide block are formed in the body of the cover. The guide block is placed in the mounting groove, and a buckle portion is formed on the outer wall of the guide block. The outlet cover is provided with a positioning plate and a buckle groove. The positioning plate is movably attached to the guide block, and the outlet cover is restricted from moving relative to the cover body by the movable engagement of the buckle portion and the buckle groove.

[0009] In the above-mentioned seat structure with seat belt height adjustment function, the height adjustment component includes a connecting plate and an adjustment slide rail. The seat is provided with a guide rail frame along its height direction. One end of the connecting plate is connected to the cover body, and the other end is connected to the adjustment slide rail. The adjustment slide rail extends movably into the guide rail frame and can reciprocate along the length direction of the guide rail frame.

[0010] In the aforementioned seat structure with seat belt height adjustment function, both sides of the guide rail frame have flanges formed along their interior, and two adjacent flanges together with the guide rail frame form a guide rail groove. Guide rail blocks are formed on both sides of the adjustment slide rail, and the guide rail blocks are movably engaged in the guide rail groove.

[0011] In the aforementioned seat structure with seat belt height adjustment function, the seat is provided with a mounting frame, the guide rail is provided with a connecting hole, and a fastener is provided in the connecting hole. The fastener is used to restrict the guide rail to the mounting frame.

[0012] In the aforementioned seat structure with seat belt height adjustment function, both ends of the side wall of the guide rail frame are formed with limiting blocks extending along its interior, and both ends of the guide rail blocks are formed with limiting holes, and the limiting blocks are movably engaged in the limiting holes.

[0013] In the aforementioned seat structure with seat belt height adjustment function, the seat belt insert further includes a retractor and a fixing plate. The retractor is used to deliver the seat belt into the cover body; one end of the fixing plate is connected to the retractor, and the other end is connected to the adjustment slide rail.

[0014] In the aforementioned seat structure with seat belt height adjustment function, an arc-shaped rolled edge extending between the flange and the guide rail frame is also formed on the guide rail block, and a steel ball is connected between the arc-shaped rolled edge and the guide rail frame.

[0015] The technical solution adopted by this utility model to solve its technical problem is to also propose an automobile, including a seat structure with seat belt height adjustment function as described above.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) This utility model provides a seat structure with seat belt height adjustment function and a car that is slidably assembled with the seat through the height adjustment component. Users can freely adjust the position of the seat belt opening according to their own height and sitting posture, thereby ensuring that the seat belt extends naturally and closely from above the shoulder to the chest position when facing drivers and passengers of different body types. This effectively avoids the shoulder or neck choking phenomenon that occurs when traditional adjustable seat belts are adjusted to extreme positions, significantly improves the adaptability to passengers of different body types, and enhances the restraint stability and riding comfort during the collision process.

[0018] (2) By cooperating with the guide rail groove and the guide rail block, the structural stability and resistance to lateral force during the sliding process are greatly improved, effectively preventing the adjustment rail from tilting or shifting during the sliding process, ensuring that the safety belt plug runs smoothly, safely and reliably, and extending its service life.

[0019] (3) By using the friction relationship between the steel ball and the flange and the guide rail frame respectively, the self-locking function of the locking mechanism is realized, ensuring that when the safety belt is close to the front of the user, the adjusting slide rail can maintain a stable and stationary state relative to the guide rail frame. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this application;

[0021] Figure 2 This is a structural diagram of the seatbelt insert;

[0022] Figure 3 This is a structural diagram of the tape outlet and the height adjustment component;

[0023] Figure 4 This is a schematic diagram of the structure between the adjustable slide rail and the guide rail frame;

[0024] Figure 5 It is an exploded view of the area between the cover body and the outlet cover.

[0025] In the diagram, 1 is the seatbelt insert; 10 is the cover body; 100 is the mounting slot; 101 is the guide block; 101a is the buckle part; 11 is the outlet cover; 110 is the positioning plate; 111 is the buckle slot; 120 is the belt outlet; 13 is the height adjustment piece; 130 is the connecting plate; 131 is the adjusting slide rail; 131a is the guide rail block; 131b is the limit hole; 14 is the retractor; and 15 is the fixing plate.

[0026] 2. Seat frame; 20. Guide rail frame; 200. Flanged edge; 201. Guide rail groove; 202. Connecting hole; 203. Fastener; 204. Limiting block. Detailed Implementation

[0027] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0029] like Figure 1 As shown, this solution mainly describes a seat structure with seat belt height adjustment function for automobiles. However, this seat structure with seat belt height adjustment function is not limited to automobiles, but can also be applied to other seats, such as child safety seats.

[0030] like Figures 1 to 5 As shown, a seat structure with seat belt height adjustment function includes: a seat belt insert 1, movably mounted on the seat, the seat belt insert 1 including a belt outlet 120 and a height adjustment component 13, the belt outlet 120 being oriented at an angle to the seat; one end of the height adjustment component 13 is connected to the belt outlet 120, and the other end is slidably mounted on the seat to drive the belt outlet 120 to move along the seat height direction; the adjustment component can move relative to the seat according to users of different body types to adjust the relative position between the belt outlet 120 and the user, so that the seat belt pulled out from the belt outlet 120 is always close to the front of the user.

[0031] like Figures 1 to 4As shown, in this embodiment, the seatbelt outlet 120 maintains a fixed angle with the seat, ensuring that the seatbelt always moves along the optimal path during pull-out. This facilitates the normal operation of the retractor 14, extends the service life of the seatbelt system, and improves the smoothness of wearing. Simultaneously, through the sliding assembly between the height adjustment component 13 and the seat, users can freely adjust the position of the seatbelt outlet 120 according to their height and posture, achieving continuous and smooth height adjustment. This overcomes the limitations of the existing three- to four-level adjustable height, meeting personalized needs. In other words, during the process of different drivers and passengers fastening their seatbelts, the sliding of the height adjustment component 13 relative to the seat allows the seatbelt pulled out from the outlet 120 to adapt to users of different body types. This ensures that the seatbelt extends naturally and snugly from above the shoulder to the chest, effectively avoiding the neck and shoulder chafing phenomena that occur with traditional B-pillar adjustable seatbelts in extreme adjustment positions. This significantly improves adaptability to occupants of different body types and enhances restraint stability and ride comfort during collisions. Therefore, this embodiment integrates the seat belt height adjustment structure into the seat, which not only conforms to ergonomic design, allowing the seat belt to naturally fit the front of the occupant after being tightened, but also, with the sliding of the height adjustment component 13, ensures that no matter what height the belt outlet 120 is adjusted to accommodate users of different body types, the seat belt can fit the front of the occupant's torso at the optimal angle, achieving dynamic adaptive human-machine matching. This structure abandons the traditional multi-position or manual locking adjustment mechanism, and achieves stepless continuous adjustment through the sliding structure, ensuring a constant belt outlet angle while also solving the technical problems of restraint failure caused by the seat belt being too high and strangling the neck, too low and slipping, or poor belt outlet angle in the prior art.

[0032] The seat belt insert 1 includes a cover body 10 and an outlet cover 11. The cover body 10 is used to guide the seat belt to move toward the outlet cover 11. The outlet cover 11 is movably engaged inside the cover body 10 and together with the cover body 10 forms the belt outlet 120.

[0033] like Figure 2 , Figure 3 as well as Figure 5 As shown, this embodiment employs a split design for the cover body 10 and the exit cover 11. This not only facilitates the guidance and restraint of the seat belt, but also allows for a detachable connection between the exit cover 11 and the cover body 10 via a snap-fit ​​mechanism, which is beneficial for future maintenance and replacement. Furthermore, this structure improves the flexibility and assembly precision of the exit area 120 without compromising overall strength, ensuring smooth seat belt entry and exit, reducing friction damage, and extending service life.

[0034] The height adjustment component 13 includes a connecting plate 130 and an adjusting slide rail 131. The seat is provided with a guide rail frame 20 along its height direction. One end of the connecting plate 130 is connected to the cover body 10, and the other end is connected to the adjusting slide rail 131. The adjusting slide rail 131 extends movably into the guide rail frame 20 and can reciprocate along the length direction of the guide rail frame 20.

[0035] like Figures 2 to 4 As shown, in this embodiment, the cover body 10 and the adjusting slide rail 131 are linked by the connecting plate 130, and the vertical lifting movement of the seat belt insert 1 is achieved in conjunction with the guide rail frame 20 on the seat (i.e., movement along the height direction of the seat back). The structure is compact and the transmission is smooth. The sliding engagement between the adjusting slide rail 131 and the guide rail frame 20 has good guiding and load-bearing capacity, and can maintain stable operation during frequent adjustments, avoiding shaking or jamming, ensuring the accuracy and reliability of the seat belt outlet height adjustment, and meeting the ergonomic needs of occupants of different heights.

[0036] Both sides of the guide rail frame 20 have flanges 200 formed along its interior. Two adjacent flanges 200 together with the guide rail frame 20 form a guide rail groove 201. Guide rail blocks 131a are formed on both sides of the adjusting slide rail 131. The guide rail blocks 131a are movably engaged in the guide rail groove 201.

[0037] like Figure 4 As shown, in this embodiment, the guide rail groove 201 is formed by the flange 200 and the guide rail frame 20, forming a semi-closed guide channel. Together with the guide rail block 131a on the adjusting slide rail 131, it realizes the limiting and guiding functions during adjustment and movement, which greatly improves the structural stability and resistance to lateral forces during the sliding process, effectively prevents the adjusting slide rail 131 from tilting or deviating during the lifting process, ensures that the safety belt plug 1 runs smoothly, safely and reliably, and extends the service life of the mechanism.

[0038] The seat has a mounting frame inside, and the guide rail 20 has a connection hole 202. The connection hole 202 has a fastener 203 inside, which is used to restrict the guide rail 20 to the mounting frame.

[0039] It should be noted that in this embodiment, the guide rail frame 20 is fixed to the mounting frame inside the seat by fasteners 203 (screws or bolts), achieving a rigid connection of key load-bearing components and significantly improving the structural strength and seismic performance of the entire height adjustment mechanism. This connection method facilitates modular assembly and disassembly, which is beneficial for later maintenance and replacement. At the same time, it ensures that in the event of a vehicle collision, the seat belt insert 1 can effectively transfer the load to the seat frame 2, thus playing its due role in safety protection.

[0040] Both ends of the side wall of the guide rail frame 20 have limiting blocks 204 extending inside it, and both ends of the guide rail block 131a have limiting holes 131b, and the limiting blocks 204 are movably engaged in the limiting holes 131b.

[0041] like Figure 4 As shown, this embodiment features a matching structure between the limiting block 204 and the limiting hole 131b to physically limit the lifting stroke of the adjusting slide rail 131, preventing excessive upward or downward movement that could damage the mechanism or cause functional failure (i.e., the adjusting slide rail 131 disengaging from the guide rail frame 20). This limiting structure is responsive and highly reliable, effectively functioning even under extreme operating or vibration conditions, thus improving the product's safety redundancy and durability. It should be noted that this embodiment conducted experimental tests on individuals with heights of 1880mm and 1550mm. Data analysis was performed on the height of the sitting position, the shoulder height during sitting, and the distance between the sitting position height and shoulder height. The results showed that the difference in the sitting position height between the height of the sitting position and the shoulder height was 91mm for 95% of the 1880mm individuals and 5% of the 1550mm individuals. Therefore, in this embodiment, the steplessly adjustable height of the adjusting slide rail 131 within the guide rail frame 20 is preferably 90mm.

[0042] The seat belt insert 1 also includes a retractor 14 and a fixing plate 15. The retractor 14 is used to deliver the seat belt into the cover body 10. One end of the fixing plate 15 is connected to the retractor 14, and the other end is connected to the adjusting slide rail 131.

[0043] like Figure 2 and Figure 3 As shown, in this embodiment, the retractor 14 is synchronously connected to the adjusting slide rail 131 via the fixing plate 15, so that the retractor 14 rises and falls together with the seat belt insert 1, thereby realizing the synchronous height adjustment of the seat belt output end and the belt outlet 120. This design ensures that the seat belt can maintain smooth retraction and extension in any adjustment position, avoiding seat belt twisting, jamming or abnormal tension caused by height changes, improving the smoothness and safety of use, and also reducing interference with the operation of the occupants.

[0044] The guide block 131a also has an arc-shaped rolled edge (not shown in the figure) extending between the flange 200 and the guide frame 20, and a steel ball (not shown in the figure) is connected between the arc-shaped rolled edge and the guide frame 20.

[0045] In this embodiment, steel balls are also provided between the arc-shaped rolled edge of the guide rail block 131a and the guide rail frame 20 to form a rolling friction pair. This significantly reduces the frictional resistance when the adjusting slide rail 131 slides in the guide rail groove 201, making height adjustment easier and smoother, especially suitable for manual adjustment scenarios. At the same time, the introduction of steel balls helps to disperse contact stress, reduce wear, improve the wear resistance and service life of the guiding mechanism, and enhance the overall quietness and comfort of operation.

[0046] The cover body 10 has an installation groove 100 and a guide block 101. The guide block 101 is placed in the installation groove 100, and a snap-fit ​​part 101a is formed on the outer wall of the guide block 101. The mask cover 11 is provided with a positioning plate 110 and a snap-fit ​​groove 111. The positioning plate 110 is movably attached to the guide block 101, and the snap-fit ​​part 101a is engaged with the snap-fit ​​groove 111 to restrict the movement of the mask cover 11 relative to the cover body 10.

[0047] like Figure 5 As shown, for the connection between the cover body 10 and the outlet cover 11, this embodiment provides a guide block 101 with a snap-fit ​​part 101a in the cover body 10, which cooperates with the snap-fit ​​groove 111 on the outlet cover 11 to form a stable and reliable snap-fit ​​structure. This not only achieves rapid installation and positioning of the outlet cover 11, but also effectively prevents it from loosening or falling off during use. At the same time, the fitting design of the positioning plate 110 and the guide block 101 enhances the guiding stability, ensures the consistent running trajectory of the seat belt, reduces the risk of deviation, and improves safety performance and assembly efficiency. This overall connection structure is simple and reliable, and a stable connection can be achieved without additional screws or other connecting parts, which is beneficial for lightweight and modular design.

[0048] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0050] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A seat structure with seat belt height adjustment function, characterized in that, include: A seatbelt insert is movably mounted on the seat. The seatbelt insert includes a belt outlet and a height adjustment component. The belt outlet is oriented at an angle to the seat. One end of the height adjustment component is connected to the belt outlet, and the other end is slidably mounted on the seat to move the belt outlet along the height direction of the seat. The height adjustment component can move relative to the seat to accommodate users of different body types, thereby adjusting the relative position between the seat belt outlet and the user, so that the seat belt pulled out from the outlet is always close to the front of the user.

2. The seat structure with seat belt height adjustment function according to claim 1, characterized in that, The seat belt insert includes a cover body and an outlet cover. The cover body is used to guide the seat belt to move toward the outlet cover. The outlet cover is movably engaged with the cover body and together with the cover body forms the seat belt outlet.

3. A seat structure with seat belt height adjustment function according to claim 2, characterized in that, The cover body has an installation groove and a guide block. The guide block is placed in the installation groove and a snap-fit ​​part is formed on the outer wall of the guide block. The outlet cover is provided with a positioning plate and a snap-fit ​​groove. The positioning plate is movably attached to the guide block and is restricted from moving relative to the cover body by the snap-fit ​​part and the snap-fit ​​groove.

4. A seat structure with seat belt height adjustment function according to claim 2, characterized in that, The height adjustment component includes a connecting plate and an adjustment slide rail. The seat is provided with a guide rail frame along its height direction. One end of the connecting plate is connected to the cover body, and the other end is connected to the adjustment slide rail. The adjustment slide rail extends movably into the guide rail frame and can reciprocate along the length direction of the guide rail frame.

5. A seat structure with seat belt height adjustment function according to claim 4, characterized in that, Both sides of the guide rail frame have flanges formed along their interior, and two adjacent flanges together with the guide rail frame form a guide rail groove. Guide rail blocks are formed on both sides of the adjusting slide rail, and the guide rail blocks are movably engaged in the guide rail groove.

6. A seat structure with seat belt height adjustment function according to claim 4, characterized in that, The seat has a mounting frame inside, and the guide rail has a connection hole. The connection hole has a fastener, which is used to restrict the guide rail to the mounting frame.

7. A seat structure with seat belt height adjustment function according to claim 5, characterized in that, Both ends of the sidewall of the guide rail frame are formed with limiting blocks extending inside them, and both ends of the guide rail blocks are formed with limiting holes, and the limiting blocks are movably engaged in the limiting holes.

8. A seat structure with seat belt height adjustment function according to claim 4, characterized in that, The seat belt insert also includes a retractor and a fixing plate. The retractor is used to deliver the seat belt into the cover body. One end of the fixing plate is connected to the retractor, and the other end is connected to the adjusting slide rail.

9. A seat structure with seat belt height adjustment function according to claim 5, characterized in that, The guide block also has an arc-shaped rolled edge extending between the flange and the guide frame, and a steel ball is connected between the arc-shaped rolled edge and the guide frame.

10. A car, characterized in that, The invention includes a seat structure with seat belt height adjustment function as described in any one of claims 1-9.

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