Locking mechanism of safety belt
By designing a seatbelt locking mechanism and utilizing the cooperation of a locking component and an unlocking wrench, the child seat seatbelt can be quickly adjusted and reliably locked, solving the problem of inconvenient operation in existing technologies and improving ease of use and safety.
Patent Information
- Application Number
- CN202520756804.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-21
AI Technical Summary
Existing child seat belts require manual adjustment, which is inconvenient, especially when used by children of different sizes, making it difficult to achieve quick and accurate locking.
A seat belt locking mechanism was designed, including a mounting body, a locking component, a resetting component, and an unlocking wrench. The locking and unlocking of the seat belt is achieved by the rotational movement of the locking component, which simplifies the operation process and can adapt to seat belts of different thicknesses through multiple locking components.
It enables quick adjustment of the seat belt, improves operational convenience, avoids the problem of improper locking of seat belts of different thicknesses, and enhances locking reliability and safety.
Smart Images
Figure CN223905020U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of children's appliances, in particular to a locking mechanism of a safety belt. BACKGROUND
[0002] A child seat is a seat designed for children of different weights (or age groups) to effectively improve the safety of children riding in the seat. In the prior art, the safety belt of a child seat often has multiple parts, such as a shoulder belt and a waist belt. The safety belt needs to be manually adjusted according to different body shapes of children, which is not convenient to operate. SUMMARY
[0003] The present application aims to provide a locking mechanism of a safety belt, which is novel and simple in structure, can quickly adjust the safety belt, and improves the convenience of using the safety belt of a child seat.
[0004] The technical solution of the present application is a locking mechanism of a safety belt, which comprises a mounting body and a safety belt. The mounting body is provided with a safety belt guide portion. A clamping member is rotatably connected to the mounting body. A reset member is arranged between the clamping member and the mounting body. A channel for the safety belt to pass through is formed between the clamping member and the safety belt guide portion. The clamping member is provided with a protruding clamping portion near the safety belt guide portion. The clamping portion is pressed against or loosened from the safety belt on the safety belt guide portion through rotational movement, thereby adjusting whether the safety belt is locked or not. An unlocking wrench is rotatably mounted on the mounting body to drive the clamping member to rotate and unlock.
[0005] As a preferred technical solution, the clamping member is provided with a linkage portion that cooperates with the unlocking wrench and is driven by the unlocking wrench to rotate and unlock.
[0006] As a preferred technical solution, the safety belt comprises two or more safety belts, and the clamping member comprises two or more clamping members corresponding to the safety belts. A reset member is arranged between each clamping member and the mounting body. The reset member can be a torsion spring or other reset element that can reset the clamping member relative to the mounting body.
[0007] As a preferred technical solution, the safety belt guide portion comprises two or more guide portions for guiding the safety belts, respectively. The two or more guide portions are arranged side by side in a left-right direction.
[0008] As a preferred technical solution, the rotational connection point of the unlocking wrench and the mounting body can be the same as or different from the rotational connection point of the clamping member and the mounting body.
[0009] As a preferred technical scheme, the occlusal surface of the occlusion piece is formed with occlusal teeth; the occlusal surface of the safety belt guiding part has a toothed part; and the safety belt is occluded between the occlusal teeth and the toothed part when the safety belt is locked.
[0010] As a preferred technical scheme, the end of the movable part of the safety belt extending through the channel between the occlusion piece and the safety belt guiding part is formed with an anti-extraction end with a thickness greater than the height of the channel. Preferably, the anti-extraction end of the safety belt can be folded at the end and sewn, or folded at the end and buckled by corresponding buttons on both sides.
[0011] Compared with the prior art, the present application has the following advantages:
[0012] 1. The safety belt of the present application passes through the channel between the safety belt guiding part and the occlusion piece, and the occlusion piece is used to press or loosen the safety belt through a rotating movement, so as to adjust whether the safety belt is locked or not. The present application has a novel and simple structure, is easy to operate, and can realize fast adjustment of the safety belt of a child seat.
[0013] 2. The present application can lock two or more safety belts through two or more occlusion pieces. This design makes each occlusion piece better lock safety belts of different thicknesses, and avoids the situation that two or more safety belts are not locked in place due to different thicknesses. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. The drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0015] The structures, proportions, sizes, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, to enable those skilled in the art to understand and read, and are not used to limit the conditions that can be implemented by the present application. Therefore, any modification of the structure, change of the proportion relationship or adjustment of the size, which does not affect the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present application.
[0016] Figure 1 is a perspective structural schematic view of the present application;
[0017] Figure 2 is another perspective structural schematic view of the present application from another angle;
[0018] Figure 3 is Figure 1An assembled structure schematic view at one angle;
[0019] Figure 4 As Figure 1 An assembled structure schematic view at another angle;
[0020] Figure 5 As Figure 1 A side sectional structure schematic view when the safety belt in the safety belt locking state;
[0021] Figure 6 As Figure 1 A side sectional structure schematic view when the safety belt in the safety belt unlocking state;
[0022] Figure 7 A partial three-dimensional structure schematic view of another specific embodiment of the safety belt in the application.
[0023] Wherein: 1 installation body; 101 safety belt guiding part; 101a first guiding part; 101b second guiding part; 102 toothed part; 103 blocking plate;
[0024] 2 safety belt; 2a first safety belt; 2b second safety belt; 201 anti-dropping end;
[0025] 3 engaging member; 3a first engaging member; 3b second engaging member; 301 engaging part; 302 engaging tooth; 303 linkage part;
[0026] 4 reset member;
[0027] 5 unlocking wrench. Specific embodiments
[0028] In order to make the purpose, technical scheme and advantages of the application clearer, the technical scheme of the embodiments of the application will be described clearly and completely below with reference to the drawings of the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. Based on the described embodiments of the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application. It can be understood that some technical means of the various embodiments described herein can be mutually replaced or combined without conflict.
[0029] In the description of the specification and claims of the application, if there are terms such as "first", "second", etc., they are only used to distinguish the described objects, and do not have any order or technical meaning. Therefore, the objects defined with "first", "second", etc. can be explicitly or implicitly included one or more objects. And "one" or "an" and the like similar words do not represent a quantity limit, but represent the existence of at least one, and "more" represents no less than two.
[0030] In the description of this application and the claims, the terms "connection," "installation," "fixation," and "reception," unless otherwise specified, should be interpreted broadly. For example, "connection" can mean a separate connection or an integral connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean a non-detachable connection or a detachable connection. As another example, "reception" does not necessarily mean complete containment; this concept also includes the containment of a portion that protrudes externally. Those skilled in the art can understand the specific meaning of the aforementioned terms in this application based on the specific circumstances.
[0031] In the description of this application and the claims, if terms such as "above," "below," or "horizontal" indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, they are only for the purpose of clearly and simply describing this application, and do not indicate or imply that the elements referred to must have a specific orientation or be constructed and operated in a specific orientation. These directional terms are relative concepts used for relative description and clarification, and may change accordingly depending on the orientation of the components in the drawings. For example, if the device in the drawings is flipped, an element described as "below" other elements will be positioned "above" other elements.
[0032] In the description of this application specification and claims, the term "if" is generally interchangeable with "when," "at," "in response to determination," or "in response to detection," depending on the context.
[0033] In the description of this application and the claims, if there is a "direction" of motion, including motion with a directional component, the term "in direction" is not necessarily understood as motion only in that one direction. Those skilled in the art can understand the specific meaning of the aforementioned terms in this application according to the specific circumstances.
[0034] like Figures 1 to 7 As shown, a seat belt locking mechanism includes a mounting body 1 and a seat belt 2. The mounting body 1 has a seat belt guide portion 101, and a locking member 3 is rotatably connected to the mounting body 1. A reset member 4 is provided between the locking member 3 and the mounting body 1. A channel for the seat belt 2 to pass through is formed between the locking member 3 and the seat belt guide portion 101. The locking member 3 has a protruding locking portion 301 near the seat belt guide portion 101. The locking portion 301 presses or releases the seat belt 2 on the seat belt guide portion 101 through rotational movement, thereby adjusting whether the seat belt 2 is locked or not. An unlocking wrench 5 is also rotatably mounted on the mounting body 1, which can drive the locking member 3 to unlock.
[0035] In the embodiment, the engaging member 3 has a linkage part 303 that cooperates with and is driven to rotate by the unlocking wrench 5. The engaging member 3 and the unlocking wrench 5 can rotate independently. When unlocking, the rotating unlocking wrench 5 drives the engaging member 3 to rotate by pushing the linkage part 303. Compared with the traditional fixed linkage or rigid connection design, the design avoids misoperation (such as the accidental movement of the unlocking wrench 5 directly triggering the action of the engaging member 3) through "selective coupling", reduces the friction loss between components, and realizes safer operation logic, lower unnecessary mechanical interference, and higher efficient unlocking action triggering.
[0036] In the embodiment, the safety belt 2 is two, and the engaging member 3 is two corresponding to the safety belt 2. The reset member 4 is arranged between each engaging member 3 and the mounting body 1. The reset member 4 can be a torsional spring or other reset element that can reset the engaging member 3 relative to the mounting body 1. Specifically, the safety belt 2 includes a first safety belt 2a and a second safety belt 2b. The engaging member 3 includes a first engaging member 3a opposite to the first safety belt 2a and a second engaging member 3b opposite to the second safety belt 2b. Preferably, the first engaging member 3a and the second engaging member 3b are coaxially connected with the mounting body 1. Of course, the first engaging member 3a and the second engaging member 3b can also be connected with the mounting body 1 through different connecting shafts, respectively.
[0037] The first engaging member 3a and the second engaging member 3b can correspond to lock the first safety belt 2a and the second safety belt 2b. This design allows each engaging member 3 to better lock safety belts of different thicknesses, avoiding the situation that the first safety belt 2a and the second safety belt 2b are not locked in place in the case of different thicknesses.
[0038] In the embodiment, the safety belt guide part 101 includes a first guide part 101a for guiding the first safety belt 2a and a second guide part 101b for guiding the second safety belt 2b. The second guide part 101b and the first guide part 101a are arranged side by side.
[0039] In order to better guide the first safety belt 2a on the first guide part 101a and the second safety belt 2b on the second guide part 101b, and avoid their interlacing or mutual friction, in the embodiment, the outer ends of the first guide part 101a and the second guide part 101b and the space between them are provided with a blocking plate 103, so that the first guide part 101a and the second guide part 101b form independent channels above them for the first safety belt 2a and the second safety belt 2b to pass through, respectively.
[0040] In this embodiment, the occlusal surface of the occlusion member 3 (including the first occlusion member 3a and the second occlusion member 3b) is formed with occlusal teeth 302; the occlusal surface of the safety belt guide 101 (including the first guide 101a and the second guide 101b) has a toothed portion 102; when the safety belt 2 is locked, it is occluded between the corresponding occlusal teeth 302 and the toothed portion 102. This design can increase the occlusion force of the two, making the locking of the safety belt 2 more reliable.
[0041] In this embodiment, the end of the movable portion of the safety belt 2 extending out of the channel between the occlusion member 3 and the safety belt guide 101 is formed with a anti-disengagement end 201 with a thickness greater than the height of the channel, to avoid the active end of the safety belt 2 from accidentally disengaging from the channel. Preferably, the anti-disengagement end 201 of the safety belt 2 can be folded over at its end and sewn, or folded over at its end and buckled by corresponding button buckles on both sides, etc.
[0042] In this embodiment, the rotation connection point of the unlocking wrench 5 and the mounting body 1 can be the same as the rotation connection point of the occlusion member 3 and the mounting body 1, or it can be different. Preferably, different rotation points are adopted.
[0043] This application is applicable to child seats, which can be a one-piece structure or a multi-section folding structure. Preferably, the child seat includes a backrest portion, a seating portion, and a foot extension plate rotatably mounted on the front edge of the seating portion and adjustable in angle. Since the above-mentioned child seat is a conventional technology in this technical field, it is not specifically described and limited here. The locking mechanism can be provided on the back side of the backrest portion or the bottom of the seating portion or the foot extension plate of the child seat.
[0044] In the drawings of this embodiment, the mounting body 1 is preferably the foot extension plate. The unlocking wrench 5 is provided on the back of the foot extension plate, which can effectively prevent the unlocking wrench 5 from being misoperated by a child sitting in the seat, improving the safety of use.
[0045] In the drawings of this embodiment, preferably, the occlusion member 3 is rotatably connected above the safety belt guide 101, which plays a role in guiding and supporting the safety belt 2, i.e., the first guide 101a plays a role in guiding and supporting the first safety belt 2a, and the second guide 101b plays a role in guiding and supporting the second safety belt 2b.
[0046] In the embodiment, preferably, the rotating connection point of the unlocking wrench 5 and the mounting body 1 is arranged below the rotating connection point of the clamping member 3 and the mounting body 1 and above the safety belt 2. The position of the unlocking wrench 5 is designed to facilitate the upward rotation of the safety belt 2 to drive the clamping member 3 to rotate upward when the safety belt 2 is pulled, and the operation is more convenient.
[0047] The working principle of the present application is as follows:
[0048] When the tightening adjustment is needed, only the movable end of the safety belt 2 needs to be pulled directly. During the pulling process, the safety belt 2 is slightly lifted upward, the unlocking wrench 5 and the clamping member 3 are rotated in the unlocking direction under the pulling force, the clamping member 3 releases the safety belt 2, and after the tightening adjustment is completed, the movable end of the safety belt 2 is released, and the clamping member 3 is automatically locked again under the resetting action of the resetting member 4.
[0049] When the loosening adjustment is needed, only the unlocking wrench 5 needs to be rotated to drive the clamping member 3 to rotate in the unlocking direction, the clamping member 3 releases the safety belt 2, and the safety belt 2 can be loosened by pulling the other end (the restraint part), and after the adjustment is completed, the unlocking wrench 5 is released, and the clamping member 3 is automatically locked again under the resetting action of the resetting member 4.
[0050] The safety belt 2 of the present application passes through the safety belt guide part 101, and the clamping member 3 tightens or releases the safety belt 2 through rotating movement, thereby adjusting whether the safety belt 2 is locked or not, and the structure is novel and simple, and the operation is convenient, and the fast adjustment of the safety belt of the child seat can be realized.
[0051] In the description of the present application, the description of the terms "preferred", "optional" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are included in at least one embodiment or example of the present application. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0052] The above embodiments are only used to illustrate the detailed scheme of the present application, and the present application is not limited to the above detailed scheme, i.e. it does not mean that the present application must rely on the above detailed scheme to be implemented. It should be understood by those skilled in the art that any improvement of the present application, equivalent replacement of each raw material of the product of the present application, addition of auxiliary ingredients, selection of specific methods, etc. fall within the protection scope and disclosure scope of the present application.
Claims
1. A locking mechanism for a safety belt comprising a mounting body and a safety belt, characterized in that: The mounting body is provided with a seat belt guide part, and a clamping part is rotatably connected to the mounting body, and a reset part is arranged between the clamping part and the mounting body; a channel for the seat belt to pass through is formed between the clamping part and the seat belt guide part, and a protruding clamping part is formed on the clamping part close to the seat belt guide part, which is used to press or release the seat belt on the seat belt guide part through rotating movement, so as to adjust whether the seat belt is locked or not; an unlocking wrench is rotatably mounted on the mounting body, which can drive the clamping part to rotate.
2. A seat belt locking mechanism according to claim 1, wherein: The clamping part is provided with a linkage part which is matched with the unlocking wrench and can be driven to rotate by the unlocking wrench.
3. A seat belt locking mechanism according to claim 1, wherein: The seat belt is two or more, and the clamping part is two or more corresponding to the seat belt, and the reset part is arranged between each clamping part and the mounting body.
4. A seat belt locking mechanism according to claim 3, wherein: The seat belt guide part includes two or more guide parts for guiding each seat belt respectively, and the two or more guide parts are arranged side by side in left and right directions.
5. The belt locking mechanism according to claim 1, wherein: The rotating connection point of the unlocking wrench and the mounting body is different from the rotating connection point of the clamping part and the mounting body.
6. A seat belt locking mechanism according to claim 1, wherein: The rotating connection point of the unlocking wrench and the mounting body is the same as the rotating connection point of the clamping part and the mounting body.
7. A belt locking mechanism according to any one of claims 1 to 4, wherein: The clamping surface of the clamping part is provided with clamping teeth, and the clamping surface of the seat belt guide part is provided with a toothed part; when the seat belt is locked, it is clamped between the clamping teeth and the toothed part.
8. The belt locking mechanism according to claim 1, wherein: The end of the movable part of the seat belt which extends out of the channel between the clamping part and the seat belt guide part is provided with an anti-extraction end with a thickness greater than the height of the channel.
9. A seat belt locking mechanism according to claim 8, wherein: The anti-extraction end of the seat belt is folded and sewn at the end.
10. A seat belt locking mechanism according to claim 8, wherein: The anti-extraction end of the seat belt is folded at the end and buckled by corresponding buttons on both sides.