Damping rotation structure of safety belt mortise lock
By replacing the spring with damping gaskets, the problems of abnormal noise and high cost in the existing damping rotating structure are solved, and the effects of cost reduction and abnormal noise removal are achieved, which improves the stability and comfort of the lock bracket.
Patent Information
- Application Number
- CN202422073562.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-26
AI Technical Summary
In the existing damping rotating structure, the lock bracket and the lock base are connected by a pin or a shaft, resulting in abnormal noise during rotation, and the use cost of conical or tower springs is higher.
The damping gasket is used instead of the spring, and the damping gasket is connected to the lock base and bracket through riveting. The elastic and plastic deformation of the damping gasket is used to achieve the damping effect, avoid abnormal noise, and reduce costs.
It effectively reduces costs, avoids the occurrence of abnormal noise, and improves the stability and comfort of the lock bracket.
Smart Images
Figure CN223058967U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automotive safety devices, and particularly relates to a damping rotation structure for a seat belt latch. Background Art
[0002] In order to protect the safety of automotive consumers and provide them with the best protection, safety design has become one of the most important aspects in modern automotive design. When a traffic accident occurs, the vehicle seat belt system plays a primary role in ensuring the safety of drivers and passengers. The seat belt latch is an indispensable part of the seat belt system. In order to balance safety and wearing comfort, more and more engineers are beginning to favor rotary seat belt latches, which allows drivers and passengers of different heights to adjust their comfortable wearing angles.
[0003] In the existing damping rotation structure, the latch bracket is connected to the latch base through a pin or a shaft, enabling the latch bracket to be rotatable; and an axial thrust is applied to the latch bracket by a conical or tapered spring to make the latch bracket closely adhere to the latch base, so that the latch bracket remains at a certain angle under the action of friction (damping) (referring to maintaining a certain angle without other external forces, and the latch bracket can still rotate around the axis under manual adjustment or the driving force of the seat belt tightening force). However, the latch bracket, the latch base, and the spring are all made of steel, and abnormal noises will be generated during the rotation of the latch bracket; moreover, the conical or tapered spring used has a certain purchase cost. Summary of the Utility Model
[0004] Therefore, the utility model provides a damping rotation structure for a seat belt latch to solve or alleviate one or more of the above problems.
[0005] In order to achieve the above object, the utility model provides the following technical solutions:
[0006] A damping rotation structure for a seat belt latch includes a latch base, a latch bracket, a rivet, and a damping gasket. The latch base includes a first base plate, and the first base plate is provided with a through hole. The latch bracket includes a bracket adapter plate, and the bracket adapter plate is provided with a through hole. There are two damping gaskets, and the damping gaskets are annular nylon sheets. Both sides of the damping gaskets are provided with a plurality of evenly distributed bumps. The first base plate, the bracket adapter plate, and the damping gaskets are riveted together by the rivet, and the two damping gaskets are respectively pressed between the first base plate and the bracket adapter plate and between the bracket adapter plate and the rivet head of the rivet.
[0007] Further, two limiting blocks are arranged at the edge of the first base plate, and the two limiting blocks are arranged at intervals; a limiting lug protruding towards one side of the first base plate is arranged at the edge of the bracket adapter plate, and the limiting lug is located between the two limiting blocks.
[0008] Further, the latch base further includes a second base plate, the first base plate and the second base plate are integrally bent and formed, and a groove-shaped reinforcing rib integrally formed is further arranged between the first base plate and the second base plate.
[0009] Further, the latch bracket further includes a bracket connecting plate, and the bracket connecting plate and the bracket adapter plate are integrally formed.
[0010] Further, the limiting block and the first base plate are integrally formed.
[0011] Further, the limiting lug and the bracket adapter plate are integrally formed.
[0012] Further, the seat belt latch damping rotation structure further includes a latch head, and the latch head is fixed to one end of the bracket connecting plate away from the bracket adapter plate.
[0013] The utility model has the following advantages:
[0014] Using a damping gasket to replace the spring can effectively reduce the cost; the damping gasket is used to isolate the latch base and the latch bracket made of the same material, which can avoid generating abnormal noises; in addition, another damping gasket is also used to isolate the rivet head and the latch bracket to further avoid the generation of abnormal noises.
[0015] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can be obtained by extension based on the provided drawings without creative efforts.
[0017] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the ratio relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.
[0018] Figure 1 It is a schematic diagram of a damping rotation structure of a seat belt latch provided by an embodiment of the present utility model;
[0019] Figure 2 It is an exploded structure schematic diagram of a latch base, a latch bracket, a rivet and two damping washers of a damping rotation structure of a seat belt latch provided by an embodiment of the present utility model;
[0020] Figure 3 It is a schematic diagram of the structure of a latch base of a damping rotation structure of a seat belt latch provided by an embodiment of the present utility model;
[0021] Figure 4 It is a schematic diagram of the structure of a latch bracket of a damping rotation structure of a seat belt latch provided by an embodiment of the present utility model;
[0022] Figure 5 It is a schematic diagram of the structure of a rivet of a damping rotation structure of a seat belt latch provided by an embodiment of the present utility model;
[0023] Figure 6 It is a schematic diagram of the structure of a damping washer of a damping rotation structure of a seat belt latch provided by an embodiment of the present utility model;
[0024] Figure 7 It is a schematic diagram of a latch bracket rotating around a rivet to an extreme position of a latch base of a damping rotation structure of a seat belt latch provided by an embodiment of the present utility model;
[0025] Figure 8 It is a schematic diagram of a latch bracket rotating around a rivet to another extreme position of a latch base of a damping rotation structure of a seat belt latch provided by an embodiment of the present utility model.
[0026] In the figure: 1 - latch base, 11 - first base plate, 111 - through hole, 112 - limit block, 12 - second base plate, 13 - reinforcing rib, 2 - latch bracket, 21 - bracket adapter plate, 211 - through hole, 212 - limit tab, 22 - bracket connecting plate, 3 - rivet, 31 - rivet head, 4 - damping washer, 41 - bump, 5 - latch lock head. Detailed implementation manners
[0027] In the following text, only some exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the accompanying drawings and description are to be regarded as illustrative in nature and not restrictive.
[0028] As Figure 1-8 shown, this embodiment provides a damping rotation structure for a seat belt latch, including a latch base 1, a latch bracket 2, a rivet 3, and two damping washers 4. The latch base 1 includes a first base plate 11, and the first base plate 11 is provided with a through hole 111 for passing through the rivet 3. The latch bracket 2 includes a bracket adapter plate 21, and the bracket adapter plate 21 is provided with a through hole 211 for passing through the rivet 3. The damping washer 4 is an annular nylon sheet (i.e., with a perforation in the middle), and both sides of the damping washer 4 are provided with a plurality of evenly distributed bumps 41. The small end of the rivet 3 (referring to the end opposite to the rivet head 31) sequentially passes through one damping washer 4, the through hole 211 of the bracket adapter plate 21, the other damping washer 4, and the through hole 111 of the first base plate 11, and then is riveted to rivet the first base plate 11, the bracket adapter plate 21, and the two damping washers 4 together. While pressing the first base plate 11 and the bracket adapter plate 21, the damping washer 4 therebetween is pressed; while pressing the bracket adapter plate 21 and the rivet head 31 of the rivet 3, the damping washer 4 therebetween is pressed; after riveting, the small end of the rivet 3 is relatively fixed to the first base plate 11. After riveting and pressing, the bumps 41 of the damping washer 4 undergo elastic and plastic deformation, so the latch bracket 2 can rotate with damping around the rivet 3 as the rotation axis.
[0029] Using the damping washer 4 to replace the spring can effectively reduce costs; using the damping washer 4 to isolate the latch base 1 and the latch bracket 2 of the same material can avoid generating abnormal noises; in addition, another damping washer 4 is also used to isolate the rivet head 31 and the latch bracket 2 to further avoid the generation of abnormal noises.
[0030] Exemplarily, each side of the damping washer 4 is provided with 8 bumps 41, and the bumps 41 are hemispherical. Optionally, the side of the damping washer 4 is provided with convex ribs extending radially, and the cross-section in the normal direction of the convex ribs is semicircular.
[0031] In this embodiment, two limiting blocks 112 are provided at the edge of the first base plate 11, and the two limiting blocks 112 are arranged at intervals; a limiting lug 212 protruding toward one side of the first base plate 11 is provided at the edge of the bracket adapter plate 21, and the limiting lug 212 is located between the two limiting blocks 112. During the rotation of the latch bracket 2 around the rivet 3, the limiting lug 212 on the bracket adapter plate 21 is restricted by the two limiting blocks 112 at the edge of the first base plate 11, so that the rotation of the latch bracket 2 can only be carried out within a certain range, thus avoiding the inconvenience of fastening the seat belt due to the latch bracket 2 rotating too large an angle.
[0032] In this embodiment, the latch base 1 further includes a second base plate 12. The first base plate 11 and the second base plate 12 are integrally bent and formed. Exemplarily, the second base plate 12 is arranged perpendicular or nearly perpendicular (referring to 80 - 100°) to the first base plate 11, and the second base plate 12 is used to be fixed to the vehicle body (such as the vehicle frame or the vehicle floor, etc.). A groove-shaped reinforcing member 13 is also integrally formed between the first base plate 11 and the second base plate 12. By providing the reinforcing member 13, the angle between the first base plate 11 and the second base plate 12 can be made more stable, that is, the stability of the latch base 1 is improved.
[0033] In this embodiment, the latch bracket 2 further includes a bracket connecting plate 22, and the bracket connecting plate 22 and the bracket adapter plate 21 are integrally formed. The bracket connecting plate 22 is used to connect the latch head 5. The integrally formed bracket connecting plate 22 and bracket adapter plate 21 have good connection strength. The limiting block 112 and the first base plate 11 are integrally formed, and the limiting lug 212 and the bracket adapter plate 21 are integrally formed.
[0034] In this embodiment, the seat belt latch damping rotation structure further includes a latch head 5, and the latch head 5 is fixed to the end of the bracket connecting plate 22 away from the bracket adapter plate 21. The latch head 5 is used to connect with the plug on the seat belt.
[0035] In the description of this specification, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.
[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.
[0037] In the present application, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal connection or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0038] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and diagonally above the second feature, or merely indicating that the first feature has a higher level height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and diagonally below the second feature, or merely indicating that the first feature has a lower level height than the second feature.
[0039] The above disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described above. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.
[0040] The above is only the specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily conceive of various changes or substitutions within the technical scope disclosed in the present application, and these should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims
1. A damping rotation structure of a seat belt latch, characterized in that, It includes a plug lock base, a plug lock bracket, rivets and damping gaskets. The plug lock base includes a first base plate which is provided with a through hole. The plug lock bracket includes a bracket adapter plate which is provided with a through hole. There are two damping gaskets which are annular nylon sheets. Both sides of the damping gaskets are provided with a plurality of evenly distributed bumps. The first base plate, the bracket adapter plate and the damping gaskets are riveted together by the rivets. The two damping gaskets are respectively pressed between the first base plate and the bracket adapter plate and between the bracket adapter plate and the rivet head of the rivet.
2. The damping rotation structure of the seat belt latch according to claim 1, wherein, Two limit blocks are arranged at the edge of the first base plate, and the two limit blocks are arranged at intervals; a limit lug protruding towards one side of the first base plate is arranged at the edge of the bracket adapter plate, and the limit lug is located between the two limit blocks.
3. The damping rotation structure of the seat belt latch according to claim 1, wherein, The plug lock base further includes a second base plate. The first base plate and the second base plate are integrally bent and formed, and an integrally formed groove-shaped reinforcing rib is further arranged between the first base plate and the second base plate.
4. The damping rotation structure of the seat belt latch according to claim 1, wherein, The plug lock bracket further includes a bracket connecting plate which is integrally formed with the bracket adapter plate.
5. The damping rotation structure of the seat belt latch according to claim 2, wherein, The limit block is integrally formed with the first base plate.
6. The seat belt latch damping rotation structure according to claim 2, wherein, The limit lug is integrally formed with the bracket adapter plate.
7. The damping rotation structure of the seat belt latch according to claim 4, wherein The seat belt plug lock damping rotation structure further includes a plug lock head which is fixed to one end of the bracket connecting plate far away from the bracket adapter plate.