Seat locking device, seat assembly and vehicle

Abstract

The utility model discloses a seat locking device, a seat assembly and a vehicle, and relates to the technical field of vehicle accessories. Comprising a retractor, a locking braid and a locking anchor point. The retractor is located rearward of the seating assembly. And one end of the locking braid is connected to the retractor. The locking anchor point is fixedly connected with the locking braid, and the locking anchor point is fixed to a vehicle body system of the vehicle, so that when the vehicle collides, the locking braid is rolled up through the retractor to limit forward overturning of the seat assembly. Under the condition that a vehicle is collided or the vehicle is braked emergently, the retractor can roll up the locking braid, so that downward and backward pre-tightening force is applied to the seat framework. Therefore, one position of the seat assembly is locked, and the seat assembly is prevented from turning forwards. Therefore, a driver and passengers are prevented from being injured due to forward overturning along with the seat, and the riding safety coefficient of the seat assembly is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle accessory technical field, concretely relates to a seat locking device, seat assembly and vehicle. BACKGROUND

[0002] With the development of vehicle technology, the seat function of the vehicle is continuously enriched. For example, in addition to having forward and backward movement and seat inclination and other electric adjustment functions, heating, ventilation and massage functions are also added. In recent years, the zero-gravity seat can simulate a weightless environment, reduce the pressure on each part of the body, release the pressure of the seat and evenly distribute the body weight, and maximize the comfort of the user with various functions.

[0003] However, when the vehicle collides or brakes urgently, the seat continues to move forward due to inertia, generating a large inertial force that causes the seat backrest to tip forward, prompting the driver or passenger to tip forward, thereby increasing the risk of collision between the driver or passenger and the objects in the vehicle. SUMMARY

[0004] One of the purposes of the utility model is to provide a seat locking device to solve the problem that the seat backrest tips forward in the prior art, increasing the risk of collision between the driver or passenger and the objects in the vehicle when the vehicle collides or brakes urgently. The second purpose is to provide a seat assembly. The third purpose is to provide a vehicle.

[0005] To achieve the above purposes, the utility model adopts the following technical solutions:

[0006] A seat locking device includes a retractor, a locking webbing, and a locking anchor point. The retractor is located behind the seat assembly. One end of the locking webbing is connected to the retractor. The locking anchor point is fixedly connected to the locking webbing, and the locking anchor point is fixed to the vehicle body system of the vehicle. When the vehicle collides, the retractor winds up the locking webbing to restrict the seat assembly from tipping forward.

[0007] According to the above technical means, in the case of vehicle collision or emergency braking, the retractor can wind up the locking webbing, thereby applying a pre-tightening force downward and to the rear of the vehicle to the seat frame. This locks the position of the seat assembly and prevents it from tipping forward. This prevents the driver or passenger from tipping forward with the seat and improves the safety factor of the seat assembly.

[0008] Further, the retractor is fixed to the seat frame of the seat assembly, and the locking anchor point is fixed to the rocker beam of the vehicle body.

[0009] The retractor is fixed on a vehicle body of the vehicle body system, and the locking anchor point is fixed on a seat framework of the seat assembly.

[0010] According to the technical means, the positions of the retractor and the locking anchor point can be arranged according to the mountable space of the vehicle body system, and the product applicability of the seat locking device is improved.

[0011] Further, the retractor is detachably connected with the seat framework, or,

[0012] The retractor is detachably connected with the vehicle body.

[0013] According to the technical means, the detachable connection between the retractor and the seat framework or the detachable connection between the retractor and the vehicle body can facilitate the assembly, disassembly, maintenance or replacement of the retractor.

[0014] Further, when the retractor is located on the seat framework, the seat locking device further comprises a retractor support, the retractor support is welded and fixed with the seat framework, and the retractor is fixed on the retractor support through bolts.

[0015] According to the technical means, the retractor support and the retractor are connected through bolts, on the one hand, the contact area between the retractor and the retractor support can be increased through the retractor support, and the fixed connection of the retractor can be facilitated, on the other hand, the detachable connection between the retractor and the retractor support can be facilitated. The retractor support is welded and fixed with the seat framework, and the connection firmness between the retractor and the seat framework can be greatly improved.

[0016] Further, the seat locking device further comprises a webbing guide ring, the locking webbing penetrates through the webbing guide ring to guide the locking webbing through the webbing guide ring; wherein,

[0017] The webbing guide ring is detachably connected with the seat framework.

[0018] According to the technical means, the webbing guide ring guides the locking webbing, so that the locking webbing can provide a backward pre-tightening force to the seat assembly. Moreover, the detachable connection between the webbing guide ring and the seat framework can facilitate the assembly, disassembly, maintenance or replacement of the webbing guide ring.

[0019] Further, the seat locking device further comprises a guide support, the guide support is welded and fixed with the seat framework, and the webbing guide ring is fixed on the guide support through bolts.

[0020] According to the above technical means, the webbing guide ring and the guide bracket are connected by bolts. On the one hand, the guide bracket can increase the contact area with the webbing guide ring, facilitating the fixed connection of the webbing guide ring. On the other hand, the bolted connection between the webbing guide ring and the guide bracket facilitates the assembly and disassembly of the webbing guide ring. The guide bracket is welded and fixed to the seat frame, which can greatly improve the connection strength between the webbing guide ring and the seat frame.

[0021] Furthermore, the webbing guide ring is located above the take-up device.

[0022] According to the above technical means, the webbing guide ring is located above the retractor, which can ensure that the locking webbing can be close to the top of the seat frame, so as to improve the pre-tensioning effect of the locking webbing pulling the seat frame backward.

[0023] A seat assembly comprising a seat locking device as described in any of the above utility model claims.

[0024] According to the aforementioned technical means, in the event of a vehicle collision or emergency braking, the retractor can roll up the locking webbing, thereby applying a downward and rearward preload force to the seat frame. This locks the seat assembly in place, preventing it from flipping forward. This prevents injury to occupants from the seat flipping forward and improves the overall safety of the seat assembly.

[0025] Furthermore, the seat assembly also includes an angle sensor, which is mounted on the seat assembly and electrically connected to the vehicle's controller to detect the backrest tilt angle of the seat assembly.

[0026] According to the above technical means, the angle sensor is used to detect the backrest tilt angle of the seat assembly, so as to determine whether the seat assembly has flipped forward by the backrest tilt angle, thereby determining whether the position of the seat assembly needs to be locked.

[0027] A vehicle comprising the seat assembly described in any one of the above utility model claims.

[0028] According to the aforementioned technical means, in the event of a vehicle collision or emergency braking, the retractor can roll up the locking webbing, thereby applying a downward and rearward preload force to the seat frame. This locks the seat assembly in place, preventing it from flipping forward. This prevents injury to occupants from the seat flipping forward and improves vehicle safety.

[0029] Furthermore, the vehicle also includes a controller electrically connected to the retractor to control the operation of the retractor.

[0030] According to the above-mentioned technical means, the controller is electrically connected to the retractor, and the controller can control the working state of the retractor. Therefore, unified control and management can be achieved through the controller, simplifying the structure of the seat locking device and improving its ease of control.

[0031] The beneficial effects of this utility model are:

[0032] (1) In the event of a vehicle collision or emergency braking, the retractor can roll up the locking webbing, thereby applying a downward and rearward preload force to the seat frame. This locks the seat assembly in place, preventing it from flipping forward. This prevents injury to occupants from the seat flipping forward and improves the overall safety of the seat assembly.

[0033] (2) This utility model has a simple structure and can reduce production costs while effectively improving the safety factor of the seat assembly. Attached Figure Description

[0034] Figure 1 A perspective structural diagram of a seat locking device provided for an embodiment of this utility model;

[0035] Figure 2 A second perspective structural diagram of a seat locking device provided in an embodiment of this utility model;

[0036] Figure 3 A schematic diagram illustrating the connection between a webbing guide ring and a seat frame, provided for an embodiment of this utility model;

[0037] Figure 4 A block diagram of a first electrical connection structure of a controller provided in an embodiment of this utility model;

[0038] Figure 5 A block diagram of a second electrical connection structure of a controller provided in an embodiment of this utility model;

[0039] Reference numerals: 1. Retractor; 2. Locking webbing; 3. Locking anchor point; 4. Retractor bracket; 5. Webbing guide ring; 6. Guide bracket; 7. Seat frame; 8. Angle sensor; 9. Sill beam; 10. Controller; 11. Pressure sensor; 12. Front collision sensor. Detailed Implementation

[0040] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0041] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0042] With advancements in vehicle technology, the functionality of vehicle seats has been continuously enhanced. For example, in addition to electric adjustments such as fore-and-aft movement and seat tilt, features like heating, ventilation, and massage have been added. Furthermore, recent years have seen the development of zero-gravity seats that simulate a weightless environment, reducing pressure on various parts of the body, allowing the seat to release pressure and evenly distribute body weight, maximizing user comfort when combined with a variety of functions.

[0043] However, in the event of a collision or emergency braking, the seat continues to move forward due to inertia, generating a large inertial force that causes the seat back to tilt forward, causing the occupants to fall forward and increasing the risk of collision between the occupants and objects inside the vehicle.

[0044] Based on the aforementioned technical problems, this utility model is proposed. An embodiment of this utility model discloses a seat locking device, which may include a retractor 1, a locking webbing 2, and a locking anchor point 3. The retractor 1 is located at the rear of the seat assembly. One end of the locking webbing 2 is connected to the retractor 1. The locking anchor point 3 is fixedly connected to the locking webbing 2 and is fixed to the vehicle's body system. In the event of a vehicle collision, the retractor 1 winds up the locking webbing 2 to restrict the seat assembly from rolling forward. In the event of a vehicle collision or emergency braking, the retractor 1 can wind up the locking webbing 2, thereby applying a downward and rearward preload force to the seat frame 7. This locks the seat assembly in place, preventing it from rolling forward. This prevents injury to occupants from the seat rolling forward and improves the safety factor of the seat assembly.

[0045] Reference Figures 1-3This utility model provides a seat locking device, which may include a retractor 1, a locking webbing 2, and a locking anchor point 3. The device includes a retractor 1, a locking webbing 2, and a locking anchor point 3. The retractor 1 is located at the rear of the seat assembly. One end of the locking webbing 2 is connected to the retractor 1. The locking anchor point 3 is fixedly connected to the locking webbing 2 and is fixed to the vehicle's body system so that, in the event of a collision, the retractor 1 can wind up the locking webbing 2 to prevent the seat assembly from rolling forward.

[0046] In this embodiment of the invention, the vehicle body system can be understood as including the vehicle body and various components and equipment installed on the vehicle body. The seat assembly, together with the vehicle body, constitutes the interior space and load-bearing structure of the vehicle. The seat assembly can be understood as a complete combination of all components that make up a fully functional and comfortable seat, including at least a seat frame 7, a seat cushion and backrest, a seat adjustment mechanism, and a headrest. For example, the seat frame 7 of the seat assembly is typically made of metal and provides structural support for other components of the seat assembly. Furthermore, the seat frame 7 can withstand the weight of the occupants (the collective term for driver and passengers) and various forces exerted during vehicle operation. The seat cushion and backrest are installed on the seat frame 7 and are the parts that the occupants directly contact, providing a comfortable seating experience. The seat adjustment mechanism is typically located at the bottom of the seat frame 7 and is used to adjust the position and angle of the seat assembly. The headrest is typically installed at the top of the seat backrest to support the head of the occupants. The rear of the seat assembly is located near the rear of the vehicle, and the front of the seat assembly is located near the front of the vehicle. The retractor 1 is located at the rear of the seat assembly to provide a tension force at the rear of the seat assembly.

[0047] One end of the locking webbing 2 is fixed to the retractor 1. The retractor 1 can be a pre-tensioned seat belt retractor. Therefore, the retractor 1 allows the locking webbing 2 to extend and retract freely under normal circumstances to meet the comfort needs of passengers. For example, when adjusting the backrest angle of the seat assembly, the user can adjust the length of the locking webbing 2 according to their needs. In the event of a collision or emergency braking, the retractor 1 is activated, enabling the locking webbing 2 to be quickly rolled up.

[0048] The locking webbing 2 refers to the strip of fabric that restrains the position of the seat assembly. For example, the locking webbing 2 can be made of materials such as polyester fiber or nylon. The locking webbing 2 can have a flat strip structure. The locking anchor point 3 refers to the fixing point of the locking webbing 2 on the vehicle body system. It provides a strong fixing point for the locking webbing 2, so that the force on the locking webbing 2 can be transmitted to the body system through the locking anchor point 3. The locking anchor point 3 can be made of metal. It can be fixed to the body system by welding or bolting. For example, the locking anchor point 3 can be fixedly connected to the body of the body system or fixedly connected to the seat assembly of the body system.

[0049] During normal vehicle operation, the retractor 1 is in a free state, allowing the unwinding length of the locking webbing 2 to be freely adjusted simultaneously when the occupants adjust the angle of the seat frame 7. In the event of a collision or emergency braking, the retractor 1 can wind up the locking webbing 2, applying a downward and rearward preload to the seat frame 7. This locks the seat assembly in place, preventing it from flipping forward. This prevents injury to occupants from the seat flipping forward and improves the overall safety of the seat assembly. Furthermore, this invention has a simple structure and reduces production costs while effectively improving the safety of the seat assembly.

[0050] In one optional embodiment of the utility model, the retractor 1 is fixed to the seat frame 7 of the seat assembly, and the locking anchor point 3 is fixed to the sill beam 9 of the vehicle body. Alternatively, the retractor 1 is fixed to the vehicle body of the body system, and the locking anchor point 3 is fixed to the seat frame 7 of the seat assembly.

[0051] In this embodiment of the invention, the positions of the retractor 1 and the locking anchor point 3 can be arranged according to the available space in the vehicle body system, improving the product applicability of the seat locking device. In some embodiments, the retractor 1 can be installed on the seat frame 7 of the seat assembly, and the locking anchor point 3 can be fixed to the sill beam 9. The sill beam 9 is located at the junction of the vehicle chassis and the side of the vehicle body. For example, the sill beam 9 can be a hollow beam structure made of steel. In other embodiments, the locking anchor point 3 can also be fixedly connected to the seat frame 7, and the retractor 1 can be fixed to the vehicle body of the vehicle body system. For example, the retractor can be fixed to the sill beam 9, the inner side panel, the floor, etc.

[0052] In one optional embodiment of the utility model, the retractor 1 is detachably connected to the seat frame 7. Alternatively, the retractor 1 is detachably connected to the vehicle body.

[0053] In this embodiment of the invention, the detachable connection between the retractor 1 and the seat frame 7, or the detachable connection between the retractor 1 and the vehicle body, facilitates the assembly, disassembly, maintenance, or replacement of the retractor 1. The detachable connection can be secured using methods such as snap-fit ​​or bolt connection.

[0054] An optional utility model embodiment, referring to Figure 1 and Figure 2 As shown, when the retractor 1 is located on the seat frame 7, the seat locking device further includes a retractor bracket 4, which is welded and fixed to the seat frame 7, and the retractor 1 is fixed to the retractor bracket 4 by bolts.

[0055] In this embodiment of the invention, the winding bracket 4 can be a plate-like structure. For example, the winding bracket 4 can be welded and fixed to the seat frame 7 in a horizontal direction. This provides an assembly plane for mounting the retractor 1. Furthermore, considering that the surface of the seat frame 7 is typically curved or has a small planar area, direct mounting of the retractor 1 is not advantageous. In some embodiments, the contact surface of the winding bracket 4 that contacts the seat frame 7 is adapted to the surface shape of the seat frame 7 to improve the contact area and weld strength between the winding bracket 4 and the seat frame 7.

[0056] The winding bracket 4 is bolted to the winding device 1. On the one hand, the winding bracket 4 increases the contact area with the winding device 1, which facilitates the fixed connection of the winding device 1. On the other hand, the bolted connection between the winding device 1 and the winding bracket 4 greatly improves the ease of disassembly and assembly of the winding device 1 when it malfunctions and needs to be repaired or replaced.

[0057] In other embodiments, when the locking anchor point is fixed to the seat frame 7, the seat locking device may further include a plate-shaped anchor point bracket, which may be welded to the seat frame 7, and the locking anchor point 3 may be fixed to the anchor point bracket by bolts.

[0058] An optional utility model embodiment, referring to Figure 1 , Figure 2 as well as Figure 3As shown, the seat locking device further includes a webbing guide ring 5, through which the locking webbing 2 passes to guide the locking webbing 2. The webbing guide ring 5 is detachably connected to the seat frame 7.

[0059] In this embodiment of the invention, the webbing guide ring 5 is used to orient and guide the locking webbing 2, thereby ensuring that the locking webbing 2 can move along a preset path. For example, the locking webbing 2 is inserted into the webbing guide ring 5 to prevent the locking webbing 2 from twisting, tangling, or deviating from the preset path during use. Therefore, in the event of a vehicle collision or emergency braking, the locking webbing 2 can provide a rearward preload force to the seat assembly. Furthermore, the webbing guide ring 5 is detachably connected to the seat frame 7, facilitating the assembly, disassembly, maintenance, or replacement of the webbing guide ring 5.

[0060] An optional utility model embodiment, referring to Figure 1 , Figure 2 as well as Figure 3 As shown, the seat locking device also includes a guide bracket 6, which is welded and fixed to the seat frame 7, and the webbing guide ring 5 is fixed to the guide bracket 6 by bolts.

[0061] In this embodiment of the invention, the guide bracket 6 can be a plate-like structure. For example, the guide bracket 6 can be welded and fixed to the seat frame 7 in a horizontal direction. This provides an assembly plane for mounting the webbing guide ring 5. Furthermore, considering that the surface of the seat frame 7 is typically curved or has a small planar area, direct mounting of the webbing guide ring 5 is not advantageous. In some embodiments, the contact surface of the guide bracket 6 that contacts the seat frame 7 is adapted to the surface shape of the seat frame 7 to improve the contact area and weld strength between the guide bracket 6 and the seat frame 7.

[0062] The webbing guide ring 5 and the guide bracket 6 are connected by bolts. On one hand, the guide bracket 6 increases the contact area with the webbing guide ring 5, facilitating its secure connection. On the other hand, the bolted connection between the webbing guide ring 5 and the guide bracket 6 facilitates the assembly and disassembly of the webbing guide ring 5. This significantly improves the ease of assembly and disassembly when the webbing guide ring 5 malfunctions and requires repair or replacement.

[0063] In some embodiments, both the guide bracket 6 and the retractor bracket 4 can be made of steel, thereby improving the overall structural strength of the seat locking device.

[0064] In one optional embodiment of the utility model, the webbing guide ring 5 is located above the take-up device 1.

[0065] In this embodiment of the invention, the webbing guide ring 5 is located above the retractor 1. For example, the retractor 1 can be fixed to the side of the seat frame 7 near the vehicle door, and the webbing guide ring 5 can be located on the same side of the seat frame 7 where the retractor 1 is installed, and above the retractor 1. This ensures that the locking webbing 2 can be close to the top of the seat frame 7. When the locking webbing 2 is rolled up under the action of the retractor 1, the locking webbing 2 can apply a downward and backward pretension force to the seat frame 7, thereby improving the pretensioning effect of the locking webbing 2 in pulling the seat frame 7 backward.

[0066] This utility model embodiment also provides a seat assembly, which includes a seat locking device as described in any of the above utility model embodiments.

[0067] In this embodiment of the invention, in the event of a vehicle collision or emergency braking, the retractor 1 can roll up the locking webbing 2, thereby applying a downward and rearward preload force to the seat frame 7. This locks the seat assembly in place, preventing it from flipping forward. This prevents injury to occupants from the seat flipping forward and improves the overall safety of the seat assembly.

[0068] In some embodiments, the seat assembly may be the seat assembly corresponding to the driver's seat of the vehicle, the seat assembly corresponding to the front passenger seat of the vehicle, or the seat assembly corresponding to the rear seats of the vehicle, without further limitation.

[0069] An optional utility model embodiment, referring to Figure 4 As shown, the seat assembly also includes an angle sensor 8, which is mounted on the seat assembly and electrically connected to the vehicle controller 10 to detect the backrest tilt angle of the seat assembly.

[0070] In this embodiment of the invention, the angle sensor 8 is used to detect the backrest tilt angle of the seat assembly, thereby determining whether the seat assembly has flipped forward, and thus whether the seat assembly needs to be locked in place. For example, the angle sensor 8 can be installed on the seat frame 7 of the seat assembly, or on the seat back of the seat assembly.

[0071] The angle sensor 8 can be electrically connected to the vehicle controller 10, and transmit the angle sensing signal detected by the angle sensor 8 to the controller 10. In the event of a vehicle collision or emergency braking, if the backrest tilt angle (e.g., the rotation angle) of the seat assembly is greater than a preset threshold, it indicates that the backrest tilt angle of the seat assembly is abnormal. In this case, the retractor 1 needs to be activated to wind up the locking webbing 2 to prevent the seat assembly from flipping forward and increasing the safety risk of the occupants colliding with objects in front.

[0072] This utility model embodiment also provides a vehicle, the vehicle including a seat assembly as described in any of the above utility model embodiments.

[0073] In this embodiment of the invention, in the event of a vehicle collision or emergency braking, the retractor 1 can roll up the locking webbing 2, thereby applying a downward and rearward preload force to the seat frame 7. This locks the seat assembly in place, preventing it from flipping forward. This prevents injury to occupants from the seat flipping forward and improves vehicle safety.

[0074] An optional utility model embodiment, referring to Figure 4 and Figure 5 As shown, the vehicle also includes a controller 10, which is electrically connected to the retractor 1 to control the operation of the retractor 1.

[0075] In this embodiment of the invention, the vehicle may include, but is not limited to, the following types: gasoline vehicles, diesel vehicles, pure electric vehicles, hybrid electric vehicles, and fuel cell vehicles. The controller 10 may be the vehicle's ECU (Electronic Control Unit) controller 10. The controller 10 is electrically connected to the retractor 1, and the retractor 1 can be activated via the controller 10 to quickly wind up the locking webbing 2. Therefore, unified control and management can be achieved through the controller 10, simplifying the structure of the seat locking device and improving its ease of control.

[0076] In some implementations, refer to Figure 5 As shown, the vehicle may further include a pressure sensor 11 embedded in the seat cushion of the seat assembly. The pressure sensor 11 is electrically connected to the controller 10, thereby allowing the determination of whether there is someone sitting in the seat assembly. For example, if the pressure value detected by the pressure sensor 11 is greater than a pressure threshold, it is determined that there is someone sitting in the seat assembly.

[0077] In some implementations, refer to Figure 5 As shown, the vehicle may further include a front collision sensor 12 disposed at the front of the vehicle body. The front collision sensor 12 is electrically connected to the controller 10. For example, the front collision sensor 12 may be mounted behind the front bumper of the vehicle to detect frontal collision impact forces. The front collision sensor 12 may include an acceleration sensor and / or a pressure wave sensor. For example, if the front collision sensor 12 detects that the collision acceleration reaches an acceleration threshold, the seat assembly has a forward tilting tendency, requiring the retractor 1 to tighten the locking webbing 2 to lock the current position of the seat assembly.

[0078] In summary, this utility model discloses a seat locking device, a seat assembly, and a vehicle. The device may include a retractor 1, a locking webbing 2, and a locking anchor point 3. The retractor 1 is located at the rear of the seat assembly. One end of the locking webbing 2 is connected to the retractor 1. The locking anchor point 3 is fixedly connected to the locking webbing 2 and fixed to the vehicle's body system. In the event of a collision, the retractor 1 winds up the locking webbing 2 to prevent the seat assembly from flipping forward. In the event of a collision or emergency braking, the retractor 1 winds up the locking webbing 2, applying a downward and rearward preload to the seat frame 7. This locks the seat assembly in place, preventing it from flipping forward. This prevents injury to occupants from the seat flipping forward and improves the overall safety of the seat assembly.

[0079] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0080] It will be readily apparent to those skilled in the art that any combination of the above embodiments is feasible. Therefore, any combination of the above embodiments is an implementation scheme of this utility model. However, due to space limitations, this specification will not describe them in detail here.

[0081] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0082] Similarly, it should be understood that, in order to simplify the present invention and aid in understanding one or more of the various aspects of the invention, in the description of exemplary embodiments of the present invention above, various features of the present invention are sometimes grouped together in a single embodiment, figure, or description thereof.

[0083] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

Claims

1. A seat locking device, characterized in that, The seat locking device includes: A retractor (1) is located behind the seat assembly; Locking webbing (2), one end of which is connected to the retractor (1); Locking anchor point (3), which is fixedly connected to the locking webbing (2) and fixed to the vehicle body system, so that when the vehicle collides, the locking webbing (2) is wound up by the retractor (1) to restrict the seat assembly from flipping forward.

2. The seat locking device according to claim 1, characterized in that, The retractor (1) is fixed to the seat frame (7) of the seat assembly, and the locking anchor (3) is fixed to the sill beam (9) of the vehicle body; or, The retractor (1) is fixed to the body of the vehicle body system, and the locking anchor (3) is fixed to the seat frame (7) of the seat assembly.

3. The seat locking device according to claim 2, characterized in that, The retractor (1) is detachably connected to the seat frame (7); or, The retractor (1) is detachably connected to the vehicle body.

4. The seat locking device according to claim 3, characterized in that, When the retractor (1) is located on the seat frame (7), the seat locking device further includes a retractor bracket (4), which is welded and fixed to the seat frame (7), and the retractor (1) is fixed to the retractor bracket (4) by bolts.

5. The seat locking device according to claim 2, characterized in that, The seat locking device further includes a webbing guide ring (5), through which the locking webbing (2) passes to guide the locking webbing (2). The webbing guide ring (5) is detachably connected to the seat frame (7).

6. The seat locking device according to claim 5, characterized in that, The seat locking device also includes a guide bracket (6), which is welded and fixed to the seat frame (7), and the webbing guide ring (5) is fixed to the guide bracket (6) by bolts.

7. The seat locking device according to claim 5, characterized in that, The webbing guide ring (5) is located above the retractor (1).

8. A seat assembly, characterized in that, The seat assembly includes the seat locking device as described in any one of claims 1-7.

9. The seat assembly according to claim 8, characterized in that, The seat assembly also includes an angle sensor (8), which is mounted on the seat assembly and electrically connected to the vehicle controller (10) to detect the backrest tilt angle of the seat assembly.

10. A vehicle, characterized in that, The vehicle includes the seat assembly as described in any one of claims 8-9.

11. The vehicle according to claim 10, characterized in that, The vehicle also includes a controller (10) electrically connected to the retractor (1) to control the operation of the retractor (1).

Images