Safety belt box overturning cover mechanism and automobile seat

Abstract

The invention relates to the technical field of automobile safety belts, and discloses a safety belt box overturning cover mechanism and an automobile seat. The flip cover has a fully-opened state, a semi-opened state and a closed state and is provided with a shifting structure; an actuating structure; when the flip cover is located at any position between the closed state and the semi-open state, the actuating structure enables the shifting structure to be switched to the first stable state, and the flip cover is switched to the closed state. When the flip cover is located at any position between the half-open state and the full-open state, the actuating structure drives the shifting structure, so that the shifting structure is switched to the second stable state, and the flip cover is switched to the full-open state. The safety belt box overturning cover mechanism has the advantages that the safety belt box overturning cover mechanism can store the safety belt, the attractiveness and the tidiness of automotive trim are improved, a user can control the overturning cover to be automatically opened or closed in the safety belt taking process, and use is convenient.

Description

Technical Field

[0001] This application relates to the field of automotive seat belt technology, and more particularly to a seat belt box flip-top mechanism and an automotive seat. Background Technology

[0002] Currently, the three-point seat belts available on the market are generally fixed to the backrests of the left and right seats. The seat belt outlets on the seatbacks are usually fixed, and the seat belts are fixed at the outlets and exposed. This not only affects the aesthetics and cleanliness of the car interior, but also causes the seat belts to sway up and down with the car while it is in motion if they are not in use, producing abnormal noises and affecting the passenger's comfort.

[0003] Therefore, some storage box-style seat belt mechanisms have appeared on the market. Users can unlock the flap by pressing the unlock button, and the flap will automatically pop open. However, some flaps can only open to a small angle after popping open, requiring users to hold the flap open with one hand and take the seat belt with the other, which is inconvenient. In addition, the locking components in the mechanism (such as the unlock button, locking tongue, etc.) are bulky, taking up some interior space and costing a lot. Furthermore, the flap cannot be closed during use of the storage box-style seat belt mechanism, and locking will affect the use of the seat belt. During driving, the flap will shake and produce abnormal noise, affecting the riding experience. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this application is to propose a seat belt box flip cover mechanism that can automatically open and close, is easy to use, has a small size, can store seat belts, ensures no abnormal noise during driving, and does not affect the use of seat belts when the flip cover is closed.

[0005] The technical solution adopted by this application to solve its technical problem is to propose a seat belt box flip-top mechanism, including:

[0006] The housing is equipped with a receiving cavity capable of accommodating the seat belt;

[0007] A flip cover is rotatably mounted on the housing and has a fully open state, a half-open state, and a closed state; the flip cover is provided with a toggle mechanism, and the toggle mechanism has a first stable position and a second stable position;

[0008] An actuation structure is disposed on the housing and configured to drive the toggle structure;

[0009] When the flip cover is in the closed state, the toggle mechanism is in the first stable position; when the flip cover is in the fully open state, the toggle mechanism is in the second stable position.

[0010] When the flip cover is in any position between the closed state and the semi-open state, the actuation structure drives the toggle structure to switch the toggle structure to the first stable state and switch the flip cover to the closed state.

[0011] When the flip cover is in either the half-open state or the fully open state, the actuation structure drives the toggle structure to switch the toggle structure to the second stable state and switch the flip cover to the fully open state.

[0012] Furthermore, the actuating structure also has a critical position, which is located between the first stable position and the second stable position;

[0013] When the flip cover is in a semi-open state, the toggle mechanism is in a critical position.

[0014] Furthermore, the actuating structure has a first contact surface, an arc surface, and a second contact surface; one end of the arc surface is connected to the first contact surface, and the other end is connected to the second contact surface;

[0015] The actuation structure is configured as an elastic element, which moves in opposition to the actuation structure;

[0016] When the actuating structure (20) is in the first stable position, the first contact surface (200) is in contact with the elastic element; when the actuating structure (20) is in the critical position, the arc surface (201) abuts against the elastic element; when the actuating structure (20) is in the second stable position, the second contact surface (202) is in contact with the elastic element.

[0017] Furthermore, the first and second contact surfaces are configured as planes.

[0018] Furthermore, the actuation structure includes a fixing part, an elastic arm, and a connecting part; the fixing part is fixed to the housing; the elastic arm abuts against the actuation structure; the connecting part connects the fixing part and the elastic arm; the connecting part and the elastic arm form an angle, and the elastic arm is inclined towards the side closer to the actuation structure.

[0019] Furthermore, the housing is provided with a through groove for the fixing part to pass through and a downwardly protruding abutment block;

[0020] The fixing part has a spring piece and a first opening, the spring piece being disposed away from the housing; the first opening can accommodate the spring piece.

[0021] When the fixing part passes through the through groove, the spring piece is squeezed by the inner wall of the through groove and accommodated in the first opening; after the fixing part passes through the through groove, the spring piece pops out to the side away from the housing and abuts against the abutting block.

[0022] Furthermore, the actuating structure is provided with a hinge shaft;

[0023] The flip cover and the actuating structure are hinged to the housing via a hinge shaft.

[0024] Furthermore, the receiving cavity is provided with an elastically deformable snap-fit ​​component and a compression spring. The snap-fit ​​component is fixed to the housing and can be snapped into place by a seat belt buckle. One end of the compression spring is fixed to the housing, and the other end of the compression spring abuts against the snap-fit ​​component.

[0025] When the seat belt buckle is removed from the receiving cavity, the seat belt buckle presses against the locking member, causing the compression spring on the locking member to be compressed, which in turn causes the locking member to be compressed, and the seat belt buckle disengages.

[0026] Furthermore, the housing and / or the flap is provided with a second opening, which allows the seat belt webbing to pass through when the flap is in the closed state.

[0027] This application also proposes a car seat, wherein the car seat is provided with a seat belt box flip cover mechanism as described above.

[0028] Compared with the prior art, this application has at least the following beneficial effects:

[0029] In this application, a receiving cavity for accommodating seat belts is provided within the housing. When the seat belts are not in use, they can be stored in the flip-top mechanism, concealing them and improving the neatness and aesthetics of the vehicle interior. The flip-top is rotatably mounted on the housing and has three states: fully open, half-open, and closed. Users can switch between these three states by rotating the flip-top for easy access to or storage of the seat belts. In the fully open state, the flip-top can be opened to its maximum angle for easy access to the seat belts. An actuation structure mounted on the housing drives a toggle mechanism. The flip-top can be controlled by only the actuation and toggle mechanisms, resulting in a simple, small, and low-cost structure that saves space within the vehicle. When the flip-top is in the closed state, the toggle mechanism is in a first stable position, and the actuation structure keeps the flip-top in the closed state. When the flip-top is in the fully open state, the toggle mechanism is in a second stable position, and the actuation structure keeps the flip-top in the fully open state. When the flip cover is in either the closed or semi-open state, the actuation mechanism drives the toggle mechanism, causing the toggle mechanism to switch to the first stable state and the flip cover to the closed state. In other words, the actuation mechanism applies force to the toggle mechanism, which can automatically close the flip cover in either of the above positions, thus improving user convenience. When the flip cover is in either the semi-open or fully open state, the actuation mechanism drives the toggle mechanism, causing the toggle mechanism to switch to the second stable state and the flip cover to the fully open state. In other words, the actuation mechanism applies force to the toggle mechanism, which can automatically open the flip cover to its maximum position in either of the above positions. Users can then remove the seat belt from the housing with one hand without having to hold the flip cover in place, making operation convenient.

[0030] In this application, the actuation structure is set as an elastic element. The fixed part of the elastic element is fixed to the housing to prevent the elastic element from falling off during the opening of the flip cover, which would cause the mechanism to fail. The elastic arm of the elastic element abuts against the actuating structure. That is, the elastic arm can abut against the first contact surface, the second contact surface and the arc surface on the actuating structure respectively, to ensure that the elastic arm can always act on the actuating structure during the rotation of the flip cover, and the automatic opening and closing effect of the flip cover is better. The connecting part of the elastic element is connected between the fixed part and the elastic arm, and forms an angle with the elastic arm. The elastic arm is tilted towards the side closer to the actuating structure, so that the elastic arm always applies pressure to the actuating structure, ensuring that it can push the actuating structure to flip, thereby putting the flip cover in a fully open or closed state.

[0031] In this application, the receiving cavity is equipped with a resiliently deformable latching member and a compression spring. The latching member is fixed to the housing and can be used for the seat belt buckle to engage. One end of the compression spring is fixed to the housing, and the other end of the compression spring abuts against the latching member, which can prevent the seat belt from disengaging from the latching member due to vibration and improve the reliability of the engagement. When the seat belt buckle is removed from the receiving cavity, the seat belt buckle squeezes the latching member, causing the compression spring on the latching member to be compressed, which in turn causes the latching member to compress, and the seat belt buckle to disengage. When the seat belt is not in use, the latching member and the compression spring fix the seat belt buckle in the receiving cavity. Furthermore, the resiliently deformable latching member has better vibration damping and cushioning performance, so the seat belt will not produce abnormal noise due to vibration during driving, resulting in a better riding experience for the user. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the seat belt box flip-top mechanism of this application;

[0033] Figure 2 This is a schematic diagram of the seatbelt box flip-top mechanism when the flip-top is in the closed position.

[0034] Figure 3 This is a schematic diagram of the seat belt box flip-top mechanism when the flip-top is in a semi-open state.

[0035] Figure 4 This is a schematic diagram of the seatbelt box flip-top mechanism when the flip-top is in the fully open position.

[0036] Figure 5 This is a schematic diagram of the structure of the flip cover and the elastic element when the flip cover is in the closed state.

[0037] Figure 6 This is a schematic diagram of the structure of the flip cover and the elastic element when the flip cover is in a semi-open state.

[0038] Figure 7 This is a schematic diagram of the structure of the flip cover and the elastic element when the flip cover is in the fully open state.

[0039] Figure 8 A schematic diagram of the seatbelt box flip-top mechanism without the elastic element;

[0040] Figure 9 This is a schematic diagram of the structure after the elastic element separates from the seat belt box flip-top mechanism;

[0041] Figure 10 This is a top view of the shell;

[0042] Figure 11 This is an assembly diagram of the seat belt, buckle, and compression spring.

[0043] In the picture:

[0044] 1. Housing; 10. Receiving cavity; 100. Snap-fit ​​component; 101. Compression spring; 11. Through groove; 12. Abutment block; 13. Second opening;

[0045] 2. Flip cover; 20. Sliding mechanism; 200. First contact surface; 201. Curved surface; 202. Second contact surface; 203. Hinge shaft;

[0046] 3. Actuation structure; 30. Fixing part; 300. Spring piece; 301. First opening; 31. Elastic arm; 32. Connecting part.

[0047] 4. Seatbelt buckle. Detailed Implementation

[0048] The following are specific embodiments of this application, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of this application. However, this application is not limited to these embodiments.

[0049] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application 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 indicator will also change accordingly.

[0050] Furthermore, the use of terms such as "first," "second," and "a" in this application 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 application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this application, unless otherwise expressly specified and limited, 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 components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0052] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When 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 this application.

[0053] Example 1:

[0054] like Figures 1-11 As shown, a seat belt box flip-top mechanism of this embodiment mainly includes: a housing 1, a flip-top 2, and an actuation structure 3. The housing 1 is provided with a receiving cavity 10 capable of accommodating a seat belt, that is, the seat belt box flip-top mechanism of this embodiment can be adapted to a concealed seat belt. The flip-top 2 is rotatably disposed on the housing 1 and has a fully open state, a half open state, and a closed state. The flip-top 2 is provided with a toggle structure 20, which has a first stable position and a second stable position. The actuation structure 3 is preferably configured as an elastic element, such as a spring sheet, which is disposed on the housing 1 and configured to drive the toggle structure (20). Specifically, when the actuation structure 3 is configured as an elastic element, the inner wall of the elastic element movably abuts against the toggle structure 20, and continuously applies elastic force to the toggle structure 20 during the opening and closing of the flip-top 2.

[0055] Understandably, in this embodiment, the actuation structure 3 is configured to cause the toggle structure 20 to move. The actuation structure 3 can be configured as an elastic element, such as a spring sheet, spring, torsion spring, or tension spring, which provides a passive driving force. The actuation structure 3 can also be configured as an active driving structure that provides an active driving force, such as a telescopic motor or telescopic gas spring. The specific configuration of the actuation structure 3 is not limited here. This embodiment will further elaborate on the configuration of the actuation structure 3 as an elastic element; other forms of the actuation structure 3 will not be described in detail here.

[0056] When the flip cover 2 is closed, the actuating structure 20 is in the first stable position. The elastic element continuously applies a spring force (i.e., a pressing force) to the actuating structure 20, keeping the flip cover 2 closed and preventing it from shaking due to vehicle vibration, thus ensuring no abnormal noise during driving. When the flip cover 2 is fully open, that is, when the flip cover 2 is opened to the maximum position, the actuating structure 20 is in the second stable position. The elastic element continuously applies a spring force (i.e., a holding force) to the actuating structure 20, keeping the flip cover 2 fully open. That is, the spring force keeps the flip cover 2 open to the maximum position, facilitating the operation of taking out the seat belt and keeping the flip cover 2 unaffected by vehicle vibration during the taking out process.

[0057] When the flip cover 2 is in any position between the closed state and the semi-open state, the elastic force of the elastic element drives the toggle structure 20, causing the toggle structure 20 to switch to the first stable state and the flip cover 2 to switch to the closed state; when the flip cover 2 is in any position between the semi-open state and the fully open state, the elastic force of the elastic element drives the toggle structure 20, causing the toggle structure 20 to switch to the second stable state and the flip cover 2 to switch to the fully open state. When the flip cover 2 is opened clockwise, the actuating structure 20 mounted on it rotates. Specifically, when the flip cover 2 is in a half-open state, its opening angle is 30°. When the flip cover 2 is in any position between the closed state and the half-open state, for example, when the opening angle of the flip cover 2 is less than 30°, the actuating structure 20 gradually moves away from the elastic element from the bottom to the top. The elastic element applies a spring force to the upper end of the actuating structure 20, causing the actuating mechanism to rotate counterclockwise until it reaches the first stable position. The flip cover 2 then rotates counterclockwise until it reaches the closed state. When the flip cover 2 is in any position between the half-open state and the fully open state, for example, when the opening angle of the flip cover 2 is greater than 30°, the actuating structure 20 gradually approaches and adheres to the elastic element from the bottom to the top. The elastic element applies a spring force to the lower end of the actuating structure 20, causing the actuating structure 20 to rotate clockwise until it reaches the second stable position. The flip cover 2 then rotates clockwise until it reaches the fully open state.

[0058] In this application, a receiving cavity 10 for accommodating seat belts is provided in the housing 1. When the seat belts are not in use, they can be stored and hidden in the flip-top mechanism, improving the neatness and aesthetics of the vehicle interior. The flip-top 2 is rotatably mounted on the housing 1 and has three states: fully open, half open, and closed. Users can switch between these three states by rotating the flip-top 2 to facilitate the retrieval or storage of the seat belts. In the fully open state, the flip-top 2 can be opened to its maximum angle for easy access to the seat belts. The elastic element on the housing 1 moves against the actuating structure 20. The opening and closing of the flip-top 2 can be controlled by only the elastic element and the actuating structure 20. The structure is simple, small in size, low in cost, and saves space in the vehicle interior. When the flip-top 2 is in the closed state, the actuating structure 20 is in the first stable position, and the elastic force of the elastic element keeps the flip-top 2 in the closed state. When the flip-top 2 is in the fully open state, the actuating structure 20 is in the second stable position, and the elastic force of the elastic element keeps the flip-top 2 in the fully open state. When the flip cover 2 is in any position between the closed state and the semi-open state, the elastic force of the elastic element drives the toggle structure 20, causing the toggle structure 20 to switch to the first stable state and the flip cover 2 to switch to the closed state. That is, the elastic element applies pressure to the toggle structure 20, which can make the flip cover 2 automatically close in any of the above positions, realizing the automatic reset of the flip cover 2 and improving user convenience. When the flip cover 2 is in any position between the semi-open state and the fully open state, the elastic force of the elastic element drives the toggle structure 20, causing the toggle structure 20 to switch to the second stable state and the flip cover 2 to switch to the fully open state. That is, the elastic element applies pressure to the toggle structure 20, which can make the flip cover 2 automatically open to the maximum position in any of the above positions. The user does not need to hold the flip cover 2 with his / her hand and can take out the seat belt from the housing 1 with one hand, which is convenient to operate.

[0059] Preferably, the toggle structure 20 also has a critical position, which is between a first stable position and a second stable position. When the flip cover 2 is in a half-open state, the toggle structure 20 is in the critical position.

[0060] Specifically, when the flip cover 2 rotates and gradually switches from the closed state to the semi-open state, the actuating structure 20 gradually switches from the first stable position to the critical position. That is, when the opening angle of the flip cover 2 is less than 30°, the actuating structure 20 is between the first stable position and the critical position. At this time, the elastic force applied by the elastic element to the actuating structure 20 causes the flip cover 2 to close quickly, and the flip cover 2 automatically returns to the closed state. When the flip cover 2 is in the semi-open state, that is, when the opening angle of the flip cover 2 is 30°, the actuating structure 20 is in the critical position. At this time, the actuating structure 20 is in an unstable state. When the opening angle of the flip cover 2 is greater than 30°, the elastic element applies a spring force to the actuating structure 20, causing... The flip cover 2 opens quickly to the fully open state. When the opening angle of the flip cover 2 is less than 30°, the elastic element applies a spring force to the toggle structure 20, causing the flip cover 2 to quickly close to the closed state. That is, the opening and closing of the flip cover 2 is achieved by the toggle structure 20 and the elastic element, eliminating the need for a drive device, simplifying the structure and reducing costs. When the flip cover 2 switches from the half-open state to the fully open state, the toggle structure switches from the critical position to the second stable position. That is, when the opening angle of the flip cover 2 is greater than 30°, the toggle structure 20 is between the critical position and the second stable position. At this time, the spring force applied by the elastic element to the toggle structure 20 causes the flip cover 2 to open quickly, automatically opening to the fully open state. The user only needs to rotate the flip cover 2 to more than 30° or rotate it in the opposite direction to less than 30° to complete the automatic opening or closing of the flip cover 2, making operation simple and improving the user experience.

[0061] Furthermore, such as Figure 8 As shown, the actuating structure 20 has a first contact surface 200, an arc surface 201 and a second contact surface 202. One end of the arc surface 201 is connected to the first contact surface 200 and the other end is connected to the second contact surface 202.

[0062] When the actuating structure 20 is in the first stable position, the first contact surface 200 is in contact with the elastic element. The inner wall of the elastic element applies a spring force perpendicular to the first contact surface 200 to the actuating structure 20, so that the flip cover 2 is in a stable closed state. When the actuating structure 20 is in the critical position, the arc surface 201 abuts against the elastic element. At this time, the actuating structure 20 is in an unstable state. The spring force applied by the elastic element to the actuating structure 20 easily causes the actuating structure 20 to quickly switch from the critical position to the first stable state or the second stable state, realizing the automatic opening and closing of the flip cover 2. Specifically, when the opening angle of the flip cover 2 is less than 30°, the lower end of the first contact surface 200 moves away from the elastic element, and the upper end (i.e., the connection section between the first contact surface 200 and the arc surface 201) abuts against the elastic element. The elastic element abuts against the first contact surface 200. When the upper end of the first abutment surface 200 is subjected to elastic force, the actuating structure 20 rotates around the upper end of the first abutment surface 200 and switches to the first stable position, and the flip cover 2 switches to the closed state. When the opening angle of the flip cover 2 is greater than 30°, the lower end of the second abutment surface 202 (i.e., the connecting section between the second abutment surface 202 and the arc surface 201) abuts against the elastic element. The elastic element applies elastic force to the lower end of the second abutment surface 202, causing the actuating structure 20 to rotate around the lower end of the second abutment surface 202 and switch to the second stable position, and the flip cover 2 switches to the fully open state. When the actuating structure 20 is in the second stable position, the second abutment surface 202 is in contact with the elastic element, and the inner wall of the elastic element applies elastic force perpendicular to the second abutment surface 200 to the actuating structure 20, so that the flip cover 2 is in a stable fully open state.

[0063] Specifically, the first contact surface 200 and the second contact surface 202 are set as planes, the contact area between the elastic element and the actuating structure 20 is larger, and the force on the actuating structure 20 is more even, ensuring that the automatic opening and closing process of the flip cover 2 is smoother and more fluid, and the operation feel is better.

[0064] Furthermore, such as Figures 5-7 As shown, the elastic element includes a fixing part 30, an elastic arm 31, and a connecting part 32. The fixing part 30 is fixed to the housing 1. The elastic arm 31 abuts against the actuating structure 20, that is, the elastic arm 31 is in contact with the first contact surface 200 and the second contact surface 202 on the actuating structure 20 and abuts against the arc surface 201. The connecting part 32 connects the fixing part 30 and the elastic arm 31. An angle is formed between the connecting part 32 and the elastic arm 31, and the elastic arm 31 is inclined towards the side closer to the actuating structure 20 to apply a continuous elastic force to the actuating structure 20.

[0065] In this application, the elastic element fixing part 30 is fixed to the housing 1 to prevent the elastic element from falling off during the opening of the flip cover 2, which would cause the mechanism to fail. The elastic arm 31 abuts against the actuating structure 20, that is, the elastic arm 31 abuts against the first contact surface 200 and the second contact surface 202 on the actuating structure 20 and abuts against the arc surface 201, ensuring that the elastic arm 31 can always act on the actuating mechanism during the rotation of the flip cover 2, and the automatic opening and closing effect of the flip cover 2 is better. The connecting part 32 is connected between the fixing part 30 and the elastic arm 31, and forms an angle with the elastic arm 31. The elastic arm 31 is tilted towards the side closer to the actuating structure 20, so that the elastic arm 31 always applies pressure to the actuating structure 20, pushing the actuating structure 20 to flip, thereby putting the flip cover 2 in a fully open state or a closed state.

[0066] Preferably, the housing 1 is provided with a through groove 11 for the fixing part 30 to pass through and a downwardly protruding abutment block 12. The fixing part 30 has a spring piece 300 and a first opening 301. The spring piece 300 is disposed on the side away from the housing 1, and the first opening 301 can accommodate the spring piece 300. When the fixing part 30 passes through the through groove 11, the spring piece 300 is squeezed by the inner wall of the through groove 11 and accommodated in the first opening 301. After the fixing part 30 passes through the through groove 11, the spring piece 300 pops out on the side away from the housing 1 and abuts against the abutment block 12.

[0067] The fixing part 30 of the elastic element passes through the through groove 11, which completes the assembly of the elastic element. The operation is simple and does not require additional tools, thus improving the assembly efficiency. Secondly, the through groove 11 provides a guide for the fixing part 30, preventing the elastic element from getting stuck during the assembly process, thus improving the assembly efficiency. Finally, after the fixing part 30 has completely passed through the through groove 11, the spring piece 300 pops out, causing the elastic element to vibrate as a whole. The tactile feedback is obvious, providing clear feedback that the assembly is in place, preventing incomplete installation. In addition, the upper end of the spring piece 300 is tightly abutted against the abutment block 12, preventing the elastic element from falling off due to vibration and other conditions, which could cause the mechanism to fail.

[0068] Furthermore, the toggle structure 20 is provided with a hinge shaft 203. The flip cover 2 and the toggle structure 20 are hinged to the housing 1 through the hinge shaft 203. The opening and closing of the flip cover 2 and the rotation of the toggle structure 20 can be realized through the hinge shaft 203. The structure is compact, the size is small, and it saves space in the vehicle.

[0069] Preferably, such as Figure 11As shown, the receiving cavity 10 is provided with an elastically deformable snap-fit ​​member 100 and a compression spring 101. The snap-fit ​​member 100 is made of soft rubber and is fixed to the housing 1, allowing the seat belt buckle 4 to snap into it. One end of the compression spring 101 is fixed to the housing 1, and the other end abuts against the snap-fit ​​member 100. When the seat belt buckle 4 is removed from the receiving cavity 10, the seat belt buckle 4 squeezes the snap-fit ​​member 100, causing the compression spring 101 on the snap-fit ​​member 100 to be squeezed, which in turn compresses the snap-fit ​​member 100, causing the seat belt buckle 4 to disengage.

[0070] In this application, the receiving cavity 10 is provided with an elastically deformable latching member 100 and a compression spring 101. The latching member 100 is fixed to the housing 1 and can be latched by the seat belt buckle 4. One end of the compression spring 101 is fixed to the housing 1, and the other end of the compression spring 101 abuts against the latching member 100, which can prevent the seat belt from disengaging from the latching member 100 due to vibration and improve the reliability of the latching. When the seat belt buckle 4 is removed from the receiving cavity 10, the seat belt buckle 4 squeezes the latching member 100, causing the compression spring 101 on the latching member 100 to be compressed, which drives the latching member 100 to be compressed, and the seat belt buckle 4 disengages. When the seat belt is not in use, the latching member 100 and the compression spring 101 fix the seat belt buckle 4 in the receiving cavity 10. Moreover, the elastically deformable latching member 100 has better vibration damping and buffering performance. During driving, the seat belt will not produce abnormal noise due to vibration, and the user's riding experience is better.

[0071] Preferably, the housing 1 and / or the flip cover 2 are provided with a second opening 13. When the flip cover 2 is in the closed state, the second opening 13 allows the seat belt webbing to pass through. That is, when the user uses the seat belt, the flip cover 2 can be closed, and the seat belt webbing passes through the second opening 13 without affecting the use of the seat belt. Moreover, the flip cover 2 will not vibrate or produce abnormal noise due to the inability to close, thus affecting the user's riding experience.

[0072] In this application, when the flip cover 2 is in the closed state, the toggle structure 20 is in the first stable position, and the elastic arm 31 is in contact with the first contact surface 200. When the flip cover 2 opens clockwise at an angle less than 30°, the elastic arm 31 applies a leftward component force to the upper end of the first contact surface 200, causing the toggle structure 20 to rotate counterclockwise around the hinge axis 203 to the first stable position, and the flip cover 2 quickly rotates to the closed state. When the flip cover 2 opens clockwise at an angle greater than 30°, the elastic arm 31 applies a leftward component force to the lower end of the second contact surface 202, causing the toggle structure 20 to rotate clockwise around the hinge axis 203 to the second stable position, and the flip cover 2 quickly rotates to the fully open state.

[0073] Example 2:

[0074] This embodiment relates to a car seat, which is equipped with a seat belt box flip cover mechanism as shown in Embodiment 1.

[0075] Specifically, the seat belt box flip cover mechanism is located on the shoulder of the car seat, and the seat belt passes through the shoulder of the car seat and fits the human body, making the user more comfortable when using the seat belt. The shell 1 is hidden inside the car seat, and the surface of the flip cover 2 fits the surface of the car seat without protruding outwards, so as not to affect the passenger's riding and improve the aesthetics of the car interior.

Claims

1. A seatbelt case flip-top mechanism, characterized in that, include: The housing (1) is equipped with a receiving cavity (10) capable of accommodating a seat belt; A flip cover (2) is rotatably mounted on the housing (1) and has a fully open state, a half open state and a closed state; the flip cover (2) is provided with a toggle structure (20) and the toggle structure (20) has a first stable position and a second stable position; An actuation structure (3) is disposed on the housing (1) and configured to drive the toggle structure (20); When the flip cover (2) is in the closed state, the toggle structure (20) is in the first stable position; when the flip cover (2) is in the fully open state, the toggle structure (20) is in the second stable position. When the flip cover (2) is in any position between the closed state and the semi-open state, the actuation structure (3) drives the toggle structure (20) to switch the toggle structure (20) to the first stable state and switch the flip cover (2) to the closed state. When the flip cover (2) is in any position between the half-open state and the fully open state, the actuation structure (3) drives the toggle structure (20) to switch the toggle structure (20) to the second stable state and switch the flip cover (2) to the fully open state.

2. The seat belt box flip-top mechanism according to claim 1, characterized in that, The actuating structure (20) also has a critical position, which is located between the first stable position and the second stable position; When the flip cover (2) is in a semi-open state, the toggle structure (20) is in a critical position.

3. The seat belt box flip-top mechanism according to claim 2, characterized in that, The actuating structure (20) has a first contact surface (200), an arc surface (201) and a second contact surface (202); one end of the arc surface (201) is connected to the first contact surface (200), and the other end is connected to the second contact surface (202); The actuation structure (3) is configured as an elastic element, which moves against the actuation structure (20); When the actuating structure (20) is in the first stable position, the first contact surface (200) is in contact with the elastic element; when the actuating structure (20) is in the critical position, the arc surface (201) abuts against the elastic element; when the actuating structure (20) is in the second stable position, the second contact surface (202) is in contact with the elastic element.

4. The seat belt box flip-top mechanism according to claim 3, characterized in that, The first contact surface (200) and the second contact surface (202) are set as planes.

5. The seatbelt case flip-top mechanism according to any one of claims 1-4, characterized in that, The actuation structure (3) includes a fixing part (30), an elastic arm (31), and a connecting part (32); the fixing part (30) is fixed to the housing (1); the elastic arm (31) abuts against the actuation structure (20); the connecting part (32) connects the fixing part (30) and the elastic arm (31); the connecting part (32) and the elastic arm (31) form an angle, and the elastic arm (31) is inclined toward the side closer to the actuation structure (20).

6. The seat belt box flip-top mechanism according to claim 5, characterized in that, The housing (1) is provided with a through groove (11) through which the fixing part (30) passes and a downwardly protruding abutment block (12); the fixing part (30) has a spring piece (300) and a first opening (301), the spring piece (300) being disposed on the side away from the housing (1); the first opening (301) can accommodate the spring piece (300); When the fixing part (30) passes through the through groove (11), the spring piece (300) is squeezed by the inner wall of the through groove (11) and accommodated in the first opening (301); after the fixing part (30) passes through the through groove (11), the spring piece (300) pops out to the side away from the housing (1) and abuts against the abutting block (12).

7. The seat belt case flip-top mechanism according to claim 6, characterized in that, The actuating structure (20) is provided with a hinge shaft (203); The flip cover (2) and the actuating structure (20) are hinged to the housing (1) via a hinge shaft (203).

8. The seat belt box flip-top mechanism according to claim 1, characterized in that, The receiving cavity (10) is provided with an elastically deformable snap-fit ​​member (100) and a compression spring (101). The snap-fit ​​member (100) is fixed to the housing (1) and can be snapped into by the seat belt buckle (4). One end of the compression spring (101) is fixed to the housing (1), and the other end of the compression spring (101) abuts against the snap-fit ​​member (100). When the seat belt buckle (4) is removed from the receiving cavity (10), the seat belt buckle (4) presses against the latching member (100), causing the compression spring (101) on the latching member (100) to be compressed, which in turn causes the latching member (100) to be compressed, and the seat belt buckle (4) to disengage.

9. The seat belt case flip-top mechanism according to claim 1, characterized in that, The housing (1) and / or the flap (2) are provided with a second opening (13), which allows the seat belt webbing to pass through when the flap (2) is in the closed state.

10. A car seat, characterized in that, The car seat is provided with a seat belt box flip-top mechanism as described in any one of claims 1-9.

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