Headrest adjustment mechanism for a child seat and child seat

Abstract

The utility model belongs to the technical field of automobile parts, provide a headrest adjusting mechanism and children's seat for children's seat, headrest adjusting mechanism includes: seat body, it includes seat part and back part, a plurality of interval setting are connected on the back part, headrest, the position is adjustably set on the back part, locking block, it is movably set in the headrest, unlocking pull rod, it is movably set on the headrest, and the one end of unlocking pull rod and locking block swing abut. Compared with prior art, the utility model through setting adjustable headrest, locking block and unlocking pull rod, solved the children's seat headrest position fixed, cannot adapt to the problem of different height children use in prior art, the user can adjust headrest height according to actual demand, and through the interlocking state between unlocking pull rod control locking block and the connecting portion, realize quick locking and release, significantly improved the applicability, comfort and operation convenience of product.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to a headrest adjustment mechanism for a child seat and a child seat. Background Technology

[0002] With the improvement of people's living standards and the enhancement of safety awareness, child passenger safety has received increasing attention. Child seats, as an important device to ensure child passenger safety, are widely used in various types of vehicles. In the structural design of child seats, the headrest, as a key component that provides support and protection for the child's head, directly affects the comfort and safety of use.

[0003] Currently, most child car seats on the market suffer from a common technical flaw: the headrest position is usually fixed and cannot be adjusted according to changes in a child's height or posture. While this fixed headrest design is simple in structure and low in manufacturing cost, it presents numerous inconveniences in actual use. For example, as a child grows taller, the original headrest position may become too low or too high, failing to effectively support the head and affecting seating comfort. Furthermore, when children of different ages share the same car seat, the fixed headrest cannot meet the needs of different body types, reducing the product's applicability and lifespan.

[0004] Furthermore, while some improved child car seats have incorporated adjustable headrests, their operation is often complex and the adjustment steps cumbersome, making quick one-handed adjustment difficult and causing inconvenience for parents. Therefore, there is an urgent need for a headrest adjustment mechanism that is structurally sound, easy to operate, and flexible in its adjustment to improve the practicality and user experience of child car seats. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a headrest adjustment mechanism for a child seat and a child seat in light of the current state of the technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a headrest adjustment mechanism for a child seat is proposed, comprising: a seat body, which includes a seat part and a backrest;

[0007] Multiple latching portions are spaced apart on the backrest, the multiple latching portions extending in a direction away from the seat portion and distributed along the contour of the backrest;

[0008] The headrest is adjustablely positioned on the backrest.

[0009] A locking block, which is movably disposed inside the head;

[0010] An unlocking lever is movably mounted on the headrest, and one end of the unlocking lever is in movable contact with the locking block;

[0011] The unlocking lever has a locked position and an unlocked position; wherein...

[0012] When the unlocking lever is in the locked position, the locking block engages with the corresponding latching part to fix the headrest on the backrest.

[0013] When the unlocking lever is in the unlocked position, the locking block disengages from the latching part, allowing the headrest to be in an adjustable state relative to the backrest.

[0014] In the aforementioned headrest adjustment mechanism for a child seat, the moving direction of the unlocking lever is parallel to the extending direction of the plurality of latching parts, and the moving direction of the locking block is perpendicular to the extending direction of the plurality of latching parts.

[0015] In the aforementioned headrest adjustment mechanism for a child seat, the unlocking lever is provided with a first inclined surface, and the locking block is provided with a second inclined surface that movably abuts against the first inclined surface, so as to push the locking block to disengage from the locking part when the unlocking lever moves from the locked position to the unlocked position.

[0016] In the aforementioned headrest adjustment mechanism for a child seat, the locking block is generally X-shaped, and has locking grooves on both sides along the extension direction perpendicular to the multiple locking parts. The locking parts are locking protrusions, and the locking protrusions are movably engaged with the locking grooves.

[0017] In the aforementioned headrest adjustment mechanism for a child seat, one end of the headrest is provided with a cover plate, and the cover plate is provided with a guide groove that matches the shape of the locking block, so as to provide guidance for the movement of the locking block.

[0018] In the aforementioned headrest adjustment mechanism for a child seat, a first elastic element is provided in the guide groove. One end of the first elastic element abuts against the bottom wall of the guide groove, and the other end abuts against the locking block, so as to drive the locking block to engage with the latching part when the unlocking lever moves from the unlocking position to the locking position.

[0019] The headrest adjustment mechanism for a child seat described above also includes a connecting rod. The unlocking lever is provided with a waist-shaped groove. One end of the connecting rod passes through the headrest and the waist-shaped groove in sequence and is connected to the cover plate. The inner walls of the opposite ends of the waist-shaped groove movably abut against the connecting rod to provide a limit for the movement of the unlocking lever.

[0020] In the aforementioned headrest adjustment mechanism for a child seat, the headrest is provided with a mounting groove, a second elastic element is provided in the mounting groove, and a pushing part is provided on the unlocking lever. One end of the second elastic element abuts against the side wall of the mounting groove, and the other end abuts against the pushing part, so as to automatically reset the unlocking lever from the unlocked position to the locked position.

[0021] In the aforementioned headrest adjustment mechanism for a child seat, the other end of the unlocking lever is provided with a lifting part, which is exposed on the outside of the headrest to provide a support point for the force applied to the unlocking lever.

[0022] This utility model solves the above-mentioned technical problems by providing a child seat, including the headrest adjustment mechanism for a child seat described above.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) By setting an adjustable headrest, locking block and unlocking lever, the problem of the fixed position of the headrest of the child seat in the prior art and its inability to adapt to children of different heights is solved. Users can adjust the height of the headrest according to actual needs, and control the engagement state between the locking block and the locking part through the unlocking lever to achieve quick locking and release, which significantly improves the applicability, comfort and ease of operation of the product.

[0025] (2) The moving directions of the unlocking lever and the locking block form a positive cross-linking structure, making the unlocking and locking actions more stable and reliable. This design helps to simplify the internal linkage structure, reduce space occupation, and improve the overall structural compactness.

[0026] (3) By setting a mutually cooperating inclined structure between the unlocking lever and the locking block, the locking block is automatically pushed away from the locking part by the inclined force during the unlocking process. Smooth unlocking can be achieved without additional driving parts, which improves the operating efficiency and enhances the structural reliability. Attached Figure Description

[0027] Figure 1 This is a perspective view of a headrest adjustment mechanism for a child car seat according to the present invention.

[0028] Figure 2 yes Figure 1 A three-dimensional view from another direction.

[0029] Figure 3 This is a plan view of a headrest adjustment mechanism for a child car seat according to the present invention.

[0030] Figure 4 yes Figure 3 Sectional view along the AA direction.

[0031] Figure 5 yes Figure 2 A 3D view showing the seat body and cover hidden in the middle.

[0032] Figure 6 It's a 3D image of the headrest.

[0033] Figure 7 It's a 3D diagram of the unlock lever.

[0034] Figure 8 It is a 3D view of the connection between the locking block and the cover plate.

[0035] In the diagram, 100 is the seat body; 110 is the seat section; 120 is the backrest; 130 is the snap-fit ​​section; 200 is the headrest; 210 is the mounting groove; 220 is the second elastic element; 300 is the locking block; 310 is the second inclined surface; 320 is the snap-fit ​​groove; 400 is the unlocking lever; 410 is the first inclined surface; 420 is the waist-shaped groove; 430 is the pushing part; 440 is the lifting part; 500 is the cover plate; 510 is the guide groove; 520 is the first elastic element; and 600 is the connecting rod. Detailed Implementation

[0036] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0037] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment 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.

[0038] like Figures 1 to 8 As shown, this solution provides a headrest adjustment mechanism for a child seat, including a seat body 100, a headrest 200, a locking block 300, and an unlocking lever 400.

[0039] Specifically, the seat body 100 includes a seat portion 110 and a backrest 120; a plurality of engaging portions 130 are spaced apart on the backrest 120, extending away from the seat portion 110 and distributed along the contour of the backrest 120; a headrest 200 is adjustablely positioned on the backrest 120; a locking block 300 is movably disposed within the headrest 200; an unlocking lever 400 is movably disposed on the headrest 200, and one end of the unlocking lever 400 movably abuts against the locking block 300; the unlocking lever 400 has a locked position and an unlocked position; wherein, when the unlocking lever 400 is in the locked position, the locking block 300 engages with the corresponding engaging portion 130 to fix the headrest 200 to the backrest 120; when the unlocking lever 400 is in the unlocked position, the locking block 300 disengages from the engaging portion 130 to allow the headrest 200 to be in an adjustable state relative to the backrest 120.

[0040] The seat 110 provides support for the child, and the backrest 120 provides support for the child's back. Both can be a single, integral structure or separate structures, and are securely connected via subsequent connecting structures.

[0041] In the initial state, the unlocking lever 400 is in the locked position, the locking block 300 engages with the corresponding latching part 130, and the headrest 200 is fixed to the backrest 120.

[0042] When the position of the headrest 200 needs to be adjusted, first pull the unlocking lever 400 relative to the backrest 120 to move it from the locked position to the unlocked position. During the movement of the unlocking lever 400, the locking block 300 is pushed out of the engaging state with the latching part 130 by the movable abutment action of one end of the unlocking lever 400 against the backrest 120, thereby unlocking the headrest 200 relative to the backrest 120 and putting it into the adjustable state.

[0043] At this time, the headrest 200 is in a free state, and the user can adjust the relative position of the headrest 200 on the backrest 120 according to the child's actual riding needs.

[0044] After the headrest 200 is adjusted, the unlocking lever 400 is switched back to the locked position. The locking block 300 is reset during the process of the unlocking lever 400 switching back to the locked position and re-engages with the corresponding locking part 130, so that the headrest 200 enters the fixed state again, thus completing the entire adjustment process of the headrest 200 position.

[0045] This solution, by incorporating an adjustable headrest 200, a locking block 300, and an unlocking lever 400, solves the problem in existing technologies where the headrest 200 of a child seat is fixed in position and cannot accommodate children of different heights. Users can adjust the height of the headrest 200 according to their actual needs and control the engagement state between the locking block 300 and the latching part 130 through the unlocking lever 400, achieving quick locking and releasing, significantly improving the product's applicability, comfort, and ease of operation.

[0046] In one embodiment, the movement direction of the unlocking lever 400 is parallel to the extension direction of the plurality of latching portions 130 (i.e., Figure 4 The moving direction of the locking block 300 is perpendicular to the extending direction of the plurality of latching parts 130 (i.e., the vertical direction), and the moving direction of the locking block 300 is perpendicular to the extending direction of the plurality of latching parts 130 (i.e., the vertical direction). Figure 4 (In the left and right directions). The unlocking lever 400 moves along the extension direction of the latching part 130, while the locking block 300 moves perpendicular to this direction. The two form a positive linkage structure, making the unlocking and locking actions more stable and reliable. This design helps to simplify the internal linkage structure, reduce space occupation, and improve the overall structural compactness.

[0047] Furthermore, the unlocking lever 400 is provided with a first inclined surface 410, and the locking block 300 is provided with a second inclined surface 310 that movably abuts against the first inclined surface 410, so that when the unlocking lever 400 moves from the locked position to the unlocked position, it pushes the locking block 300 to disengage from the locking part 130.

[0048] By setting a mutually cooperating inclined structure between the unlocking lever 400 and the locking block 300, the locking block 300 is automatically pushed away from the latching part 130 by the inclined pushing force during the unlocking process. Smooth unlocking can be achieved without additional driving parts, which improves operating efficiency and enhances structural reliability.

[0049] In one embodiment, the locking block 300 is generally X-shaped, and a locking groove 320 is provided on both sides along the extension direction perpendicular to the multiple locking parts 130. The locking part 130 is a locking protrusion, and the locking protrusion engages with the locking groove 320.

[0050] The X-shaped locking block 300 has locking grooves 320 on both sides, which can cooperate with the locking protrusions in different height directions. This not only enhances the structural strength of the locking block 300, but also improves the locking stability, preventing accidental disengagement due to vibration or impact, thereby improving overall safety.

[0051] It is worth mentioning that a cover plate 500 is provided at one end of the headrest 200. The cover plate 500 is provided with a guide groove 510 that matches the shape of the locking block 300, so as to provide guidance for the movement of the locking block 300.

[0052] The guide groove 510 on the cover plate 500 provides a precise guide path for the locking block 300, ensuring that it always moves in the set direction during the unlocking and locking process, avoiding deviation or jamming, and further improving the smoothness and reliability of the adjustment process.

[0053] Furthermore, a first elastic element 520 is provided in the guide groove 510. One end of the first elastic element 520 abuts against the bottom wall of the guide groove 510, and the other end abuts against the locking block 300, so that when the unlocking lever 400 moves from the unlocking position to the locking position, it drives the locking block 300 to engage with the locking part 130.

[0054] The first elastic element 520 is preferably a spring. In the initial state, when the locking block 300 engages with the corresponding latching part 130, the first elastic element 520 is already in a compressed state, thereby providing a continuous thrust to the locking block 300 and preventing the locking block 300 from accidentally disengaging from the latching part 130 when the unlocking lever 400 has not been switched to the unlocking position.

[0055] As the unlocking lever 400 pushes the locking block 300 away from the engaging part 130, the locking block 300 further compresses the first elastic element 520 while moving, accumulating elastic potential energy. During the return of the unlocking lever 400 from the unlocked position to the locked position, the first elastic element 520 releases its elastic potential energy, pushing the locking block 300 back to its original position and re-engaging with the engaging part 130 at the corresponding height, thus achieving the automatic locking function.

[0056] The first elastic element 520 is set in the guide groove 510. When the unlocking lever 400 is reset, it can push the locking block 300 to automatically return to its original position and engage with the locking part 130, which greatly improves the convenience of operation and ensures the stability and reliability in the locked state.

[0057] Furthermore, this solution also includes a connecting rod 600, and an unlocking lever 400 is provided with a waist-shaped groove 420. One end of the connecting rod 600 passes through the headrest 200 and the waist-shaped groove 420 in sequence and is connected to the cover plate 500. The inner walls of the opposite ends of the waist-shaped groove 420 are in movable contact with the connecting rod 600 to provide a limit for the movement of the unlocking lever 400.

[0058] The connecting rod 600 is preferably a screw. In this design, the connecting rod 600 not only serves to fix the cover plate 500 to the headrest 200, but also has a waist-shaped groove on the outer side of the unlocking rod 400 to provide a limiting function for the movement of the unlocking rod 400, ensuring that the unlocking rod 400 has good positional accuracy and guidance when moving between the locked and unlocked positions.

[0059] It is worth mentioning that the headrest 200 is provided with a mounting groove 210, and a second elastic member 220 is provided in the mounting groove 210. The unlocking lever 400 is provided with a pushing part 430. One end of the second elastic member 220 abuts against the side wall of the mounting groove 210, and the other end abuts against the pushing part 430, so as to automatically reset the unlocking lever 400 from the unlocked position to the locked position.

[0060] The second elastic element 220 is preferably a spring. During the movement of the unlocking lever 400 from the locked position to the unlocked position, the pushing part 430 on the unlocking lever 400 applies pressure to the second elastic element 220 within the mounting groove 210, compressing it and accumulating elastic potential energy. Once the headrest 200 is adjusted, the second elastic element 220 releases its elastic potential energy, automatically resetting the unlocking lever 400 from the unlocked position to the locked position.

[0061] The second elastic element 220 is disposed in the mounting groove 210 of the headrest 200. One end of the elastic element 220 abuts against the side wall of the mounting groove 210, and the other end abuts against the pushing part 430 of the unlocking lever 400, so that the unlocking lever 400 can automatically return to its original position after the unlocking operation is completed, realizing one-handed operation and automatic locking function, which significantly improves the user's operation convenience and user experience.

[0062] Preferably, the other end of the unlocking lever 400 is provided with a lifting part 440, which is exposed on the outside of the headrest 200 to provide a support point for the force applied to the unlocking lever 400.

[0063] The lifting part 440 is exposed outside the headrest 200, which makes it easy for users to apply force directly to operate, achieve quick unlocking, improve adjustment efficiency, and is especially suitable for parents to complete the adjustment with one hand when taking care of children, with good human-computer interaction performance.

[0064] Furthermore, this solution also proposes a child seat, including the aforementioned headrest 200 adjustment mechanism for a child seat.

[0065] In summary, the headrest 200 adjustment mechanism provided in this solution achieves rapid adjustment and reliable locking of the headrest 200 height through the linkage design between the unlocking lever 400 and the locking block 300. This solves the problem of the headrest 200 being non-adjustable or inconvenient to adjust in the prior art. It has the advantages of compact structure, simple operation, safety and reliability, and is suitable for various types of child car seat products.

[0066] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" 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 those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. 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 elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0067] Furthermore, the technical solutions of the various embodiments of this utility model 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 utility model.

[0068] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A headrest adjustment mechanism for a child car seat, characterized in that, include: The seat body includes a seat section and a backrest; Multiple latching portions are spaced apart on the backrest, the multiple latching portions extending in a direction away from the seat portion and distributed along the contour of the backrest; The headrest is adjustablely positioned on the backrest. A locking block, which is movably disposed inside the head; An unlocking lever is movably mounted on the headrest, and one end of the unlocking lever is in movable contact with the locking block; The unlocking lever has a locked position and an unlocked position; wherein... When the unlocking lever is in the locked position, the locking block engages with the corresponding latching part to fix the headrest on the backrest. When the unlocking lever is in the unlocked position, the locking block disengages from the latching part, allowing the headrest to be in an adjustable state relative to the backrest.

2. The headrest adjustment mechanism for a child seat as described in claim 1, characterized in that, The moving direction of the unlocking lever is parallel to the extending direction of the plurality of latching parts, and the moving direction of the locking block is perpendicular to the extending direction of the plurality of latching parts.

3. The headrest adjustment mechanism for a child seat as described in claim 1, characterized in that, The unlocking lever is provided with a first inclined surface, and the locking block is provided with a second inclined surface that movably abuts against the first inclined surface, so as to push the locking block and the locking part to disengage when the unlocking lever moves from the locked position to the unlocked position.

4. The headrest adjustment mechanism for a child seat as described in claim 1, characterized in that, The locking block is generally X-shaped, and has locking grooves on both sides along the extension direction of the multiple locking parts. The locking part is a locking protrusion, and the locking protrusion engages with the locking groove.

5. A headrest adjustment mechanism for a child seat as described in claim 1, characterized in that, One end of the headrest is provided with a cover plate, and the cover plate is provided with a guide groove that matches the shape of the locking block to provide guidance for the movement of the locking block.

6. A headrest adjustment mechanism for a child seat as described in claim 5, characterized in that, A first elastic element is provided in the guide groove. One end of the first elastic element abuts against the bottom wall of the guide groove, and the other end abuts against the locking block, so as to drive the locking block to engage with the locking part when the unlocking lever moves from the unlocking position to the locking position.

7. A headrest adjustment mechanism for a child seat as described in claim 5, characterized in that, It also includes a connecting rod, on which an oblong groove is provided. One end of the connecting rod passes through the head abutment and is connected to the oblong groove and the cover plate. The inner walls of opposite ends of the oblong groove are in movable contact with the connecting rod to provide a limit for the movement of the unlocking rod.

8. A headrest adjustment mechanism for a child seat as described in claim 1, characterized in that, The head is provided with a mounting groove, and a second elastic element is provided in the mounting groove. The unlocking lever is provided with a pushing part. One end of the second elastic element abuts against the side wall of the mounting groove, and the other end abuts against the pushing part, so as to automatically reset the unlocking lever from the unlocked position to the locked position.

9. A headrest adjustment mechanism for a child seat as described in claim 1, characterized in that, The other end of the unlocking lever is provided with a lifting part, which is exposed on the outside of the headrest to provide a support point for the unlocking lever to bear force.

10. A child car seat, characterized in that, Includes a headrest adjustment mechanism for a child seat as described in any one of claims 1 to 9.

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