Leg rest adjusting structure for child safety seat

Abstract

The utility model discloses a kind of leg support adjusting structures for child safety seat, including chair seat, leg support, locking mechanism and unlocking piece, leg support is movably connected with chair seat, locking mechanism is movably connected to inside chair seat, leg support and locking mechanism lock stop cooperation, define the moving direction of unlocking piece as first direction, along first direction, chair seat has through-hole, unlocking piece includes main part and limiting portion, main part and limiting portion are made of flexible material, main part includes first part and second part, first part is located in chair seat and is connected with locking mechanism cooperation, second part passes through through-hole and extends outside chair seat, limiting portion is limited or fixed in second part, limiting portion and through-hole limit cooperation, to limit second part retracting in chair seat, allow limiting portion to pass through extrusion deformation mode, pass through-hole and protrude to outside chair seat and with through-hole limit cooperation, so that second part is not easy to retract in chair seat, convenient for user next time operation when catch.

Description

Technical Field

[0001] This utility model relates to the field of child safety seat technology, and in particular to a leg rest adjustment structure for a child safety seat. Background Technology

[0002] The leg rest is an important component of a child safety seat. Existing child safety seats include a seat, within which a leg rest adjustment mechanism is installed. This mechanism allows adjustment of the leg rest's tilt angle relative to the seat, thereby adjusting legroom. The leg rest adjustment mechanism typically includes a locking mechanism and an unlocking component. The locking mechanism locks the leg rest in place, while the unlocking component unlocks it. In existing technology, one end of the unlocking component is connected to the locking mechanism, and the other end protrudes from the seat through an opening or through-hole. Unlocking is achieved by pulling the unlocking component outwards. Because part of the unlocking component protrudes from the seat, it is generally made of flexible materials, such as fabric strips, to avoid injury to the user. However, during use, the flexible unlocking component often retracts unexpectedly into the seat, making it difficult to grasp again and affecting usability. Therefore, improvement is necessary. Utility Model Content

[0003] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a leg support adjustment structure for a child safety seat. The structure is simple and reasonable, and easy to operate. The unlocking part includes a main body and a limiting part. Both the main body and the limiting part are made of flexible materials, allowing the limiting part to be deformed by compression and protrude through the through hole of the seat to the outside of the seat and engage with the limiting part of the through hole. This makes it difficult for the main body to retract completely into the seat, making it convenient for the user to grab it during the next operation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: This utility model discloses a leg rest adjustment structure for a child safety seat, comprising a seat, a leg rest, a locking mechanism, and an unlocking component. The leg rest is movably connected to the seat, and the locking mechanism is movably connected to the seat. The leg rest is locked in place with the locking mechanism, and the unlocking component is linked to the locking mechanism. The moving direction of the unlocking component is defined as a first direction. Along the first direction, the seat has a through hole. The unlocking component includes a main body and a limiting part, both of which are made of flexible material. Along the first direction, the main body includes a first part and a second part. The first part is located inside the seat and is connected to the locking mechanism. The second part passes through the through hole and extends outside the seat. The limiting part limits or fixes the second part, and the limiting part is limited in place with the through hole, thereby preventing the second part from retracting into the seat.

[0005] Furthermore, the through hole is located below the leg rest.

[0006] Furthermore, the main body is a webbing, and the limiting part is a rubber pad sewn onto the webbing.

[0007] Furthermore, a shift structure is fixedly or limitedly connected to the leg support, and the shift structure is provided with a plurality of shift holes, and the locking mechanism locks into the shift holes.

[0008] Furthermore, the locking mechanism includes a fixed base, a sliding plate, and a locking member. The sliding plate is slidably disposed on the fixed base and is limited or fixedly connected to the main body. The locking member is movably disposed within the fixed base and engages with the gear position hole. The locking member is also engaged with the sliding plate and can disengage from the gear position hole under the drive of the sliding plate to release the lock.

[0009] Furthermore, a reset member is provided between the sliding plate and the fixed seat, and the reset member ensures that the locking member always has a tendency to lock with the gear hole.

[0010] Furthermore, along the first direction, two guide grooves are provided on the sliding plate, and the two guide grooves cooperate to form an "eight" shape. The locking member cooperates with the guide grooves, and part of the locking member is located in the guide groove.

[0011] Furthermore, along the first direction, the sliding plate is provided with a plurality of sliding grooves, and the fixed base is provided with a plurality of protrusions that correspond to and cooperate with the sliding grooves, with a portion of the protrusions located within the sliding grooves.

[0012] Furthermore, a handle is provided at one end of the sliding plate near the main body, and the main body is limited or fixedly connected to the handle.

[0013] Furthermore, the leg rest is arranged in or approximately in a "U" shape.

[0014] The beneficial effects of this utility model are as follows: The child safety seat leg support adjustment structure of this utility model includes an unlocking component, which includes a main body and a limiting part. Both the main body and the limiting part are made of flexible material. Along the first direction, the main body includes a first part and a second part. The first part is located inside the seat and is connected to the locking mechanism. The second part passes through the through hole and extends out of the seat. Pulling the second part along the first direction moves the locking mechanism, thereby unlocking the leg support from the locking mechanism. The limiting part limits or fixes the second part. The limiting part is limited and cooperates with the through hole. During installation, the first part is first connected to the locking mechanism, and then the second part is passed through the through hole to the outside of the seat. During this process, the limiting part is allowed to pass smoothly through the through hole and out of the seat by compression and deformation. After the limiting part passes through the through hole, it is no longer compressed. The limiting part is limited and cooperates with the through hole, making it difficult for the second part to retract into the seat, making it convenient for the user to grab it next time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural diagram of the present invention when the chair seat is concealed; Figure 3 This is a schematic diagram of the locking mechanism and the gear hole when locked from a first-view perspective. Figure 4 This is a schematic diagram of the locking mechanism and the gear hole when locked from a second perspective. Figure 5 This is a schematic diagram of the exploded structure of the locking mechanism.

[0016] Figures 1-5 middle: 1. Seat; 11. Through hole; 2. Leg support; 21. Swivel shaft; 31. Fixture; 311. Protruding column; 312. Slide rail; 32. Sliding plate; 321. Guide groove; 322. Slide groove; 323. Handle; 33. Locking component; 331. Sliding shaft; 34. Reset component; 4. Unlocking parts; 41. Main body; 42. Limiting part; 6. Gear shift structure; 61. Gear shift hole. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figures 1-5 The illustrated child safety seat leg support adjustment structure includes a seat 1, a leg support 2, a locking mechanism, and an unlocking component 4. The leg support 2 is hinged to the seat 1 via a pivot 21, allowing the leg support 2 to rotate relative to the seat 1. The locking mechanism is movably connected to the seat 1, and the leg support 2 is locked in place with the locking mechanism. The unlocking component 4 is linked to the locking mechanism. The movement direction of the unlocking component 4 is defined as a first direction. In this embodiment, the first direction is consistent with the installation direction of the safety seat. Along the first direction, the seat 1 has a through hole 11. The unlocking component 4 includes a main body 41 and a limiting part 42. Both the main body 41 and the limiting part 42 are made of flexible material. Preferably, in this embodiment, the main body 41 is a webbing; in other embodiments, the main body 41 can also be a pull cord. The limiting part 42 is a rubber pad sewn onto the webbing. The rubber pad is first sewn onto the webbing and then connected to the locking mechanism.

[0019] Along the first direction, the main body 41 includes a first part and a second part, see reference. Figures 1-4 The first part is located inside the seat 1 and is connected to the locking mechanism. The second part passes through the through hole 11 and extends out of the seat 1. Pulling the second part along the first direction moves the locking mechanism, causing the leg rest 2 to unlock from the locking mechanism. The limiting part 42 limits or fixes the second part. The limiting part 42 is engaged with the through hole 11 to limit the second part from retracting into the seat 1, making it convenient for the user to grab it during the next operation.

[0020] During installation, the first part is first connected to the locking mechanism, and then the second part is passed through the through hole 11 to the outside of the seat 1. During this process, the limiting part 42 is allowed to pass smoothly through the through hole 11 and out of the seat 1 by compression deformation. After the limiting part 42 passes through the through hole 11, it is no longer compressed. In the first direction, at least a part of the limiting part 42 extends beyond the boundary of the through hole 11 and is limited and engaged with the through hole 11, so that the second part is not easy to retract into the seat 1, making it convenient for the user to grab it during the next operation.

[0021] In this embodiment, the child safety seat is installed rear-facing, meaning the child's sitting posture in the seat is the opposite of that of an adult in the car.

[0022] Preferably, in this embodiment, refer to Figure 1 The through hole 11 is located below the leg rest 2. In the prior art, the through hole 11 and the webbing are usually located above the leg rest 2, and children can come into contact with the webbing while riding. If a child accidentally pulls the webbing, the leg rest 2 may be accidentally unlocked, which can easily lead to safety hazards. In this utility model, the through hole 11 and the webbing are located below the leg rest 2, so children are less likely to come into contact with the webbing while riding, which can effectively reduce safety hazards. Preferably, the second part should not be set too long, otherwise children may also come into contact with the webbing.

[0023] In addition, the leg rest 2 is arranged in a U-shape or approximately. The leg rest 2 can serve as a support component to hold against the back of the vehicle seat. When the vehicle is involved in a collision or sudden braking, the leg rest 2 can effectively prevent the child safety seat from flipping over relative to the vehicle seat, reducing the risk of the child colliding with the vehicle seat.

[0024] Preferably, in this embodiment, refer to Figure 4 The leg support 2 is fixedly or limitedly connected to a gear structure 6, and the gear structure 6 is provided with a plurality of gear holes 61. In this embodiment, there are two gear holes 61, which can realize two-level adjustment. The locking mechanism is locked in cooperation with the gear holes 61.

[0025] Preferably, in this embodiment, refer to Figures 2-5 The locking mechanism includes a fixed base 31, a sliding plate 32, and a locking member 33. The sliding plate 32 is slidably disposed on the fixed base 31 and is limited or fixedly connected to the main body 41. The locking member 33 is movably disposed within the fixed base 31 and is locked in place with the gear position hole 61. A sliding shaft 331 is vertically disposed on the locking member 33 and is linked in place with the sliding plate 32. The fixed base 31 is provided with a slide rail 312 that cooperates with the locking member 33. The locking member 33 can slide along the slide rail 312. The locking member 33 can be disengaged from the gear position hole 61 to release the lock or locked with the gear position hole 61 under the drive of the sliding plate 32. A reset member 34 is abutted between the sliding plate 32 and the fixed base 31. The reset member 34 ensures that the locking member 33 always has a tendency to lock with the gear position hole 61. In this embodiment, the reset member 34 is a spring.

[0026] Preferably, in this embodiment, along the first direction, the sliding plate 32 is provided with two guide grooves 321, which are arranged in a figure-eight shape. The locking member 33 is correspondingly engaged with the guide grooves 321, and the sliding shaft 331 is located in the guide grooves 321. When the sliding plate 32 is pulled outward, the locking member 33 moves away from the gear hole 61 under the action of the guide grooves 321, and finally disengages from the gear hole 61, releasing the locking between the leg support 2 and the seat 1.

[0027] Preferably, in this embodiment, along the first direction, the sliding plate 32 is provided with a plurality of sliding grooves 322, and the fixed base 31 is provided with a plurality of protrusions 311 that correspond to and cooperate with the sliding grooves 322. Part of the protrusions 311 are located in the sliding grooves 322, which can effectively play a guiding role and ensure that the sliding plate 32 moves smoothly.

[0028] Preferably, in this embodiment, a handle 323 is provided at one end of the sliding plate 32 near the main body 41, and the main body 41 is limited or fixedly connected to the handle 323 to ensure a stable and reliable connection.

[0029] The working principle of this utility model is as follows: The leg rest 2 is kept relatively fixed to the seat 1 through a locking mechanism. In the locking mechanism, the sliding plate 32 is driven by the reset member 34 to move the locking member 33, so that the locking member 33 always has a tendency to lock with the gear hole 61. At this time, the locking member 33 is engaged in the gear hole 61, and the leg rest 2 cannot move relative to the seat 1, and is in a stable locked state.

[0030] When the leg rest 2 needs adjustment, the webbing is pulled outward to drive the sliding plate 32 to slide along the first direction. When the sliding plate 32 slides outward (away from the seat 1), the locking member 33, under the action of the guide groove 321, moves away from the stop hole 61 and finally disengages from the stop hole 61, releasing the lock between the leg rest 2 and the seat 1. At this time, the reset member 34 is compressed, storing reset potential energy. After the lock is released, the leg rest 2 can rotate relative to the seat 1, allowing the user to adjust it according to their needs. After adjusting the child's leg length to the desired position, the webbing is released. Under the elastic force of the reset member 34, the sliding plate 32 moves in the opposite direction (towards the seat 1) along the first direction. Under the action of the guide groove 321, the locking member 33 moves towards the position hole 61 and finally locks into the position hole 61. The limiting part 42 can cooperate with the through hole 11 to limit the second part, making it difficult for the second part to retract into the seat 1, making it convenient for the user to grab it during the next operation.

[0031] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A leg rest adjustment structure for a child safety seat, comprising a seat (1), a leg rest (2), a locking mechanism, and an unlocking component (4), wherein the leg rest (2) is movably connected to the seat (1), the locking mechanism is movably connected to the seat (1), the leg rest (2) is locked in place with the locking mechanism, and the unlocking component (4) is linked in place with the locking mechanism, characterized in that: The moving direction of the unlocking member (4) is defined as the first direction. Along the first direction, the seat (1) has a through hole (11). The unlocking member (4) includes a main body (41) and a limiting part (42). Both the main body (41) and the limiting part (42) are made of flexible material. Along the first direction, the main body (41) includes a first part and a second part. The first part is located inside the seat (1) and is connected to the locking mechanism. The second part passes through the through hole (11) and extends out of the seat (1). The limiting part (42) limits or fixes the second part. The limiting part (42) is limited and cooperates with the through hole (11), thereby restricting the second part from retracting into the seat (1).

2. The leg rest adjustment structure for a child safety seat according to claim 1, characterized in that: The through hole (11) is located below the leg support (2).

3. The leg rest adjustment structure for a child safety seat according to claim 1, characterized in that: The main body (41) is a webbing, and the limiting part (42) is a rubber pad sewn onto the webbing.

4. The leg rest adjustment structure for a child safety seat according to claim 1, characterized in that: The leg support (2) is fixedly or limitedly connected to a gear structure (6), and the gear structure (6) is provided with a plurality of gear holes (61), and the locking mechanism locks in cooperation with the gear holes (61).

5. The leg rest adjustment structure for a child safety seat according to claim 4, characterized in that: The locking mechanism includes a fixed base (31), a sliding plate (32), and a locking member (33). The sliding plate (32) is slidably disposed on the fixed base (31). The sliding plate (32) is limited or fixedly connected to the main body (41). The locking member (33) is movably disposed in the fixed base (31). The locking member (33) locks into the gear hole (61). The locking member (33) is linked to the sliding plate (32). The locking member (33) can be disengaged from the gear hole (61) under the drive of the sliding plate (32) to release the lock.

6. The leg rest adjustment structure for a child safety seat according to claim 5, characterized in that: A reset member (34) is provided between the sliding plate (32) and the fixed seat (31), and the reset member (34) makes the locking member (33) always have a tendency to lock with the gear hole (61).

7. The leg rest adjustment structure for a child safety seat according to claim 5, characterized in that: Along the first direction, the sliding plate (32) is provided with two guide grooves (321), which are fitted together in a figure-eight shape. The locking member (33) is fitted with the guide grooves (321), and part of the locking member (33) is located in the guide grooves (321).

8. The leg rest adjustment structure for a child safety seat according to claim 5, characterized in that: Along the first direction, the sliding plate (32) is provided with a plurality of sliding grooves (322), and the fixed seat (31) is provided with a plurality of protrusions (311) that correspond to and cooperate with the sliding grooves (322), with a portion of the protrusions (311) located in the sliding grooves (322).

9. The leg rest adjustment structure for a child safety seat according to claim 5, characterized in that: The sliding plate (32) is provided with a handle (323) at one end near the main body (41), and the main body (41) is limited or fixedly connected to the handle (323).

10. The leg rest adjustment structure for a child safety seat according to claim 1, characterized in that: The leg support (2) is arranged in or approximately in a "U" shape.

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