Quick adjusting structure for shoulder belt and waist belt of child seat

Abstract

The utility model discloses a child seat shoulder belt and waist belt rapid adjusting structure which comprises a seat body and a safety belt, the safety belt comprises a shoulder belt, a waist belt, a straddle belt and a buckle seat, one end of the straddle belt is fixed to a sitting part of the seat body, and the buckle seat is installed on the straddle belt; one end of the shoulder strap and one end of the waist strap are respectively provided with an inserting buckle which can be matched with the buckle seat in a buckling mode and can be freely detached, the seat body is provided with a safety belt locking mechanism, and the other end of the shoulder strap and the other end of the waist strap penetrate through the safety belt locking mechanism at the same time. The safety belt locking mechanism can loosen or lock the shoulder belt and the waist belt; the child seat safety belt is novel and simple in structure, rapid adjustment of the child seat shoulder belt and the child seat waist belt can be achieved, and use convenience of the child seat safety belt is improved.

Description

Technical Field

[0001] This application relates to the field of child car seat technology, and in particular to a quick-adjustment structure for child car seat shoulder straps and lap belts. Background Technology

[0002] A child car seat is a seat specifically designed for children of different weights (or age groups) to restrain them and effectively improve their safety while traveling in a car. Currently, child car seats often have multiple seat belts, such as shoulder straps and lap belts, which require manual adjustment for each child's size, making the operation inconvenient. Summary of the Invention

[0003] The purpose of this application is to provide a quick-adjustment structure for child car seat shoulder and waist belts. The structure is novel and simple, enabling quick adjustment of the child car seat shoulder and waist belts, thus improving the convenience of using child car seat belts.

[0004] The technical solution of this application is: a quick-adjustment structure for a child seat shoulder and waist belt, including a seat body and a safety belt. The safety belt includes a shoulder strap, a waist belt, a crotch strap, and a buckle seat. One end of the crotch strap is fixed to the sitting part of the seat body, and the buckle seat is installed on the crotch strap. One end of the shoulder strap and the waist belt are respectively provided with a plug buckle that can be engaged with the buckle seat and can be easily removed. The seat body is provided with a safety belt locking mechanism, and the other ends of the shoulder strap and the waist belt pass through the safety belt locking mechanism. The safety belt locking mechanism can loosen or lock the shoulder strap and the waist belt.

[0005] As a preferred technical solution, the seat belt locking mechanism includes a guide portion disposed on the seat body for guiding the shoulder strap and lap belt, an adjusting wrench rotatably connected to the seat body, and a return spring disposed between the adjusting wrench and the seat body; a channel for the shoulder strap and lap belt to pass through is formed between the adjusting wrench and the guide portion, and a protruding engaging portion is formed near the guide portion of the adjusting wrench, which, through rotational movement, causes the engaging portion to press or release the shoulder strap and lap belt on the guide portion, thereby adjusting whether the shoulder strap and lap belt are locked or not.

[0006] As a preferred technical solution, the biting surface of the biting part is formed with biting teeth; the biting surface of the guide part has a toothed portion; when the shoulder strap and waist belt are locked, they are bitten between the biting teeth and the toothed portion.

[0007] As a preferred technical solution, the adjusting wrench has an operating handle that facilitates rotation.

[0008] As a preferred technical solution, the guide portion includes a shoulder strap guide portion for guiding the shoulder strap and a waist belt guide portion for guiding the waist belt, the shoulder strap guide portion and the waist belt guide portion being arranged side by side; the engagement portion of the adjusting wrench includes a shoulder strap engagement portion opposite to the shoulder strap guide portion and a waist belt engagement portion opposite to the waist belt guide portion.

[0009] As a preferred technical solution, the seat body has shoulder strap openings and waist belt openings for the shoulder strap and waist belt to pass through respectively.

[0010] As a preferred technical solution, the shoulder strap is Y-shaped and includes a shoulder strap for binding the shoulders and a shoulder adjustment strap; the waist belt is Y-shaped and includes a waist strap for binding the waist and a waist adjustment strap.

[0011] As a preferred technical solution, the shoulder strap opening is formed on the upper part of the backrest of the seat body and is for the shoulder strap to pass through; the waist belt opening is formed on the lower part of the backrest of the seat body and is for the waist belt to pass through.

[0012] As a preferred technical solution, the shoulder strap and waist belt pass through the seat belt locking mechanism simultaneously via the shoulder adjustment strap and waist adjustment strap, and are simultaneously released or locked by the seat belt locking mechanism.

[0013] As a preferred technical solution, the cross strap has an adjustment buckle that can adjust its length.

[0014] Compared with the prior art, this application has the following advantages:

[0015] The shoulder straps and waist belts of this application pass through the seat belt locking mechanism simultaneously via shoulder and waist adjustment straps and are simultaneously released or locked by the seat belt locking mechanism. When tightening is required, simply pull out the exposed ends of the shoulder straps and waist belts from the seat belt locking mechanism. During the pull, the adjustment wrench rotates in the unlocking direction due to the pulling force, loosening the shoulder straps and waist belts. After tightening, release the exposed ends of the shoulder straps and waist belts, and the adjustment wrench automatically locks the shoulder straps and waist belts again under the reset action of the return spring. When loosening is required, simply rotate the adjustment wrench to loosen the shoulder straps and waist belts. The shoulder straps and waist belts can be loosened by pulling out the front end. After adjustment, release the adjustment wrench, and the shoulder straps and waist belts automatically lock again under the reset action of the return spring. This application has a novel and simple structure, is easy to operate, and enables quick adjustment of the child seat shoulder and waist belts. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] The structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0018] Figure 1 This is a frontal perspective view of the present application;

[0019] Figure 2 This is a three-dimensional structural diagram of the rear side of this application;

[0020] Figure 3 This is a side view of the structure of this application;

[0021] Figure 4 This is a schematic diagram of the assembly structure of this application;

[0022] Figure 5 for Figure 4 A magnified view of a portion of the image;

[0023] Figure 6 This is a schematic diagram of the seat belt locking mechanism in the locked state in this application;

[0024] Figure 7 for Figure 6 A partially enlarged structural diagram;

[0025] Figure 8 This is a partial cross-sectional structural diagram of the seat belt locking mechanism in the released state in this application.

[0026] The components include: 1. Seat body; 101. Seating area; 102. Backrest; 1021. Shoulder strap opening; 1022. Waist belt opening; 103. Footrest extension plate;

[0027] 2. Shoulder straps; 201. Shoulder brace; 202. Shoulder adjustment strap;

[0028] 3. Waist belt; 301. Waist support belt; 302. Waist adjustment belt;

[0029] 4. Cross straps; 401 adjusting buckle;

[0030] 5. Buckle seat;

[0031] 6. Seat belt locking mechanism; 601 Guide part; 6011 Toothed part; 6012 Shoulder belt guide part; 6013 Waist belt guide part; 602 Adjusting wrench; 6021 Engaging part; 6022 Engaging teeth; 6023 Operating handle; 6024 Shoulder belt engaging part; 6025 Waist belt engaging part; 603 Return spring;

[0032] 7. Plug-in buckle;

[0033] 8. Barrier plates. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the described embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. It is understood that, without conflict, some technical means of the various embodiments described herein can be substituted for or combined with each other.

[0035] In the description of this application and the claims, the terms "first," "second," etc., are used only to distinguish the described objects and have no sequential or technical meaning. Therefore, objects specified with "first," "second," etc., may explicitly or implicitly include one or more of those objects. Furthermore, the words "one" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one, while "multiple" indicates not less than two.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] like Figures 1 to 8 As shown, a child seat shoulder and waist belt quick-adjustment structure includes a seat body 1 and a safety belt. The safety belt includes a shoulder strap 2, a waist belt 3, a crotch strap 4, and a buckle seat 5. One end of the crotch strap 4 is fixed to the seating part 101 of the seat body 1, and the other end is connected to the buckle seat 5. The seat body 1 has a shoulder strap opening and a waist belt opening for the shoulder strap 2 and waist belt 3 to pass through, respectively. The front ends of the shoulder strap 2 and waist belt 3 are respectively provided with a snap buckle 7 that can be engaged with the buckle seat 5 and can be easily removed. The seat body 1 is provided with a safety belt locking mechanism 6, and the rear ends of the shoulder strap 2 and waist belt 3 pass through the safety belt locking mechanism 6 at the same time. The safety belt locking mechanism 6 can loosen or lock the shoulder strap 2 and waist belt 3.

[0041] The buckle seat 5 has an unlocking button that can unlock the shoulder strap 2 and waist belt 3 simultaneously with one click. Since the buckle seat 5 and the buckle 7 have various plug-in fastening methods and unlocking structures, and are conventional technologies in this field, they will not be described in detail or limited here.

[0042] In this embodiment, the seat belt locking mechanism 6 includes a guide portion 601 disposed on the seat body 1 for guiding the shoulder strap 2 and waist belt 3, an adjusting wrench 602 rotatably connected to the seat body 1, and a return spring 603 disposed between the adjusting wrench 602 and the seat body 1; a channel for the shoulder strap 2 and waist belt 3 to pass through is formed between the adjusting wrench 602 and the guide portion 601, and a protruding engaging portion 6021 is formed near the guide portion 601 on the adjusting wrench 602, which, through rotational movement, causes the engaging portion 6021 to press or release the shoulder strap 2 and waist belt 3 on the guide portion 601, thereby adjusting whether the shoulder strap 2 and waist belt 3 are locked or not.

[0043] The biting surface of the biting portion 6021 has biting teeth 6022; the biting surface of the guide portion 601 has toothed portions 6011; when the shoulder strap 2 and waist belt 3 are locked, they are clamped between the biting teeth 6022 and the toothed portions 6011. This design increases the biting force of both, making the locking of the shoulder strap 2 and waist belt 3 more reliable.

[0044] To facilitate the rotation operation of the adjusting wrench 602, the adjusting wrench 602 has an operating handle 6023 for easy rotation operation.

[0045] In this embodiment, the guide portion 601 includes a shoulder strap guide portion 6012 for guiding the shoulder strap 2 and a waist belt guide portion 6013 for guiding the waist belt 3. The shoulder strap guide portion 6012 and the waist belt guide portion 6013 are arranged side by side. The engagement portion 6021 of the adjusting wrench 602 includes a shoulder strap engagement portion 6024 opposite to the shoulder strap guide portion 6012 and a waist belt engagement portion 6025 opposite to the waist belt guide portion 6013.

[0046] The shoulder strap engaging portion 6024 and the waist belt engaging portion 6025 can be either separate or integrated. The figure shows a separate structure, with a return spring 603 installed between each component and the seat body 1.

[0047] In order to better guide the shoulder strap 2 on the shoulder strap guide 6012 and the waist belt 3 on the waist belt guide 6013 and prevent them from intertwining or rubbing against each other, in this embodiment, a baffle plate 8 is provided at the outer end of the shoulder strap guide 6012 and the waist belt guide 6013 and between them, so that independent channels for the shoulder strap 2 and the waist belt 3 to pass through are formed above the shoulder strap guide 6012 and the waist belt guide 6013 respectively.

[0048] In this embodiment, the shoulder strap 2 is Y-shaped, including a shoulder strap 201 for restraining the shoulders and a shoulder adjustment strap 202; the waist belt 3 is Y-shaped, including a waist strap 301 for restraining the waist and a waist adjustment strap 302. The shoulder strap opening 1021 is formed on the upper part of the backrest 102 of the seat body 1 and is for the shoulder strap 201 to pass through; the waist belt opening 1022 is formed on the lower part of the backrest 102 of the seat body 1 and is for the waist strap 301 to pass through. The shoulder strap 2 and waist belt 3 pass through the seat belt locking mechanism 6 simultaneously via the shoulder adjustment strap 202 and the waist adjustment strap 302, and are simultaneously released or locked by the seat belt locking mechanism 6.

[0049] In this embodiment, the cross strap 4 has an adjustment buckle 401 that can adjust its length. This is a conventional seat belt adjustment method in this technical field, so it will not be described in detail or limited here.

[0050] In this embodiment, the seat body 1 can be a one-piece structure or a multi-segment folding structure. In the figures of this embodiment, the seat body 1 includes a backrest 102, a seating portion 101, and a footrest extension plate 103 rotatably mounted on the front edge of the seating portion 101 and with an adjustable angle. Since the aforementioned seat body 1 is conventional technology in this field, it will not be described in detail or limited herein. The seatbelt locking mechanism 6 can be located on the rear side of the backrest 102, the bottom of the seating portion 101, or on the footrest extension plate 103 of the seat body 1.

[0051] In this embodiment, the seat belt locking mechanism 6 is preferably mounted on the footrest extension plate 103. The operating handle 6023 of the adjusting wrench 602 is located on the back of the footrest extension plate 103. This design effectively prevents the adjusting wrench 602 from being accidentally operated by a child sitting in the seat, thus improving safety.

[0052] In this embodiment, preferably, the adjusting wrench 602 is rotatably connected above the guide portion 601. The guide portion 601 serves to guide and support the shoulder strap 2 and the waist belt 3. Specifically, the shoulder strap guide portion 6012 serves to guide and support the shoulder strap 2, and the waist belt guide portion 6013 serves to guide and support the waist belt 3.

[0053] The working principle of this application is as follows:

[0054] When tightening adjustment is required, simply pull out the exposed ends of the shoulder strap 2 and waist belt 3 of the seat belt locking mechanism 6. During the pulling process, the adjusting wrench 602 will rotate in the unlocking direction due to the pulling force, loosening the shoulder strap 2 and waist belt 3. After tightening and adjusting to the correct position, loosen the exposed ends of the shoulder strap 2 and waist belt 3. Under the reset action of the return spring 603, the adjusting wrench 602 will automatically lock the shoulder strap and waist belt again.

[0055] When adjustment is needed, simply turn the adjustment wrench 602 to loosen the shoulder strap 2 and waist belt 3. The shoulder strap 2 and waist belt 3 can be loosened by pulling at the front end. After adjustment, release the adjustment wrench 602, and the shoulder strap 2 and waist belt 3 will automatically lock again under the reset action of the return spring 603.

[0056] This application features a novel and simple structure, is easy to operate, and allows for quick adjustment of the child seat shoulder straps and waist belts.

[0057] As a preferred embodiment of this application, in the description of this specification, the reference to terms such as "preferred," "optional," etc., means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] The above embodiments are only used to illustrate the detailed solutions of this application. This application is not limited to the above detailed solutions, that is, it does not mean that this application must rely on the above detailed solutions to be implemented. Those skilled in the art should understand that any improvements to this application, equivalent substitutions of the raw materials of the product of this application, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of this application.

Claims

1. A quick-adjustment structure for child car seat shoulder and waist belts, comprising a seat body and a safety belt, characterized in that: The seat belt includes a shoulder strap, a lap belt, a crotch strap, and a buckle seat. One end of the crotch strap is fixed to the seating portion of the seat body, and the buckle seat is installed on the crotch strap. One end of the shoulder strap and the lap belt are respectively provided with a snap-fit ​​buckle that can be engaged with the buckle seat and can be easily removed. The seat body is provided with a seat belt locking mechanism, and the other ends of the shoulder strap and the lap belt pass through the seat belt locking mechanism. The seat belt locking mechanism can loosen or lock the shoulder strap and the lap belt.

2. The child seat shoulder strap and waist belt quick-adjustment structure according to claim 1, characterized in that: The seat belt locking mechanism includes a guide portion disposed on the seat body for guiding the shoulder strap and waist belt, an adjustment wrench rotatably connected to the seat body, and a return spring disposed between the adjustment wrench and the seat body; A channel is formed between the adjusting wrench and the guide portion for the shoulder strap and waist belt to pass through. The adjusting wrench has a protruding engagement portion near the guide portion. By rotating, the engagement portion can press or loosen the shoulder strap and waist belt on the guide portion, thereby adjusting whether the shoulder strap and waist belt are locked or not.

3. The child seat shoulder strap and waist belt quick-adjustment structure according to claim 2, characterized in that: The biting surface of the biting part is formed with biting teeth; the biting surface of the guide part has a toothed portion; when the shoulder strap and waist belt are locked, they are bitten between the biting teeth and the toothed portion.

4. The child seat shoulder strap and waist belt quick-adjustment structure according to claim 2, characterized in that: The adjusting wrench has an operating handle that facilitates rotation.

5. The child seat shoulder strap and waist belt quick-adjustment structure according to claim 2, characterized in that: The guide portion includes a shoulder strap guide portion for guiding the shoulder strap and a waist belt guide portion for guiding the waist belt, the shoulder strap guide portion and the waist belt guide portion being arranged side by side; the engagement portion of the adjusting wrench includes a shoulder strap engagement portion opposite to the shoulder strap guide portion and a waist belt engagement portion opposite to the waist belt guide portion.

6. The child seat shoulder strap and waist belt quick-adjustment structure according to claim 1, characterized in that: The seat body has shoulder strap openings and waist belt openings for the shoulder strap and waist belt to pass through, respectively.

7. The child seat shoulder strap and waist belt quick-adjustment structure according to claim 6, characterized in that: The shoulder straps are Y-shaped and include shoulder straps for securing the shoulders and shoulder adjustment straps; the waist belt is Y-shaped and includes waist straps for securing the waist and waist adjustment straps.

8. The child seat shoulder strap and waist belt quick-adjustment structure according to claim 7, characterized in that: The shoulder strap opening is formed on the upper part of the backrest of the seat body and is for the shoulder strap to pass through; the waist belt opening is formed on the lower part of the backrest of the seat body and is for the waist belt to pass through.

9. The child seat shoulder strap and waist belt quick-adjustment structure according to claim 7, characterized in that: The shoulder strap and waist belt pass through the seat belt locking mechanism simultaneously via the shoulder adjustment strap and waist adjustment strap, and are simultaneously released or locked by the seat belt locking mechanism.

10. The child seat shoulder strap and waist belt quick-adjustment structure according to claim 1, characterized in that: The cross strap has an adjustable buckle that allows its length to be adjusted.

Images