Selection control mechanism of multi-mode safety belt and multi-mode safety belt child seat

Abstract

The utility model discloses a multi-mode safety belt selection control mechanism and a multi-mode safety belt child seat, and the selection control mechanism comprises a supporting mechanism which is used for supporting a child seat safety belt during unfolding and can be folded. A limiting mechanism for limiting the height of the headrest and a control mechanism for controlling the unfolding and folding states of the supporting mechanism and enabling the limiting mechanism to synchronously adjust the height of the headrest are arranged on one side of the supporting mechanism, so that the supporting mechanism corresponds to the low height of the headrest in the unfolding state and corresponds to the high height of the headrest in the folding state; the selection control mechanism can limit the headrest adjusting height and associate the headrest height limitation with the unfolding and folding states of the supporting mechanism, the corresponding safety belt using conditions of the child are divided, and the situation that a user misuses the safety belt, and potential safety hazards are caused to the child is prevented.

Description

Technical Field

[0001] This utility model relates to the field of child safety seat technology, and in particular to a multi-mode seat belt selection control mechanism and a multi-mode seat belt child seat. Background Technology

[0002] With the increasing popularity of automobiles and the growing public awareness of child passenger safety, the use of child safety seats is becoming more widespread. In vehicle collisions, child safety seats play a crucial protective role in reducing the risk of injury or death for child passengers. Currently, in existing child safety seats, younger children use the seat belts themselves, while older children cannot clearly distinguish between the seat belts and the car's seat belts. In the event of a collision, older children, due to their greater weight, may be ejected from the car seat, posing a safety hazard during the use of child safety seats. Utility Model Content

[0003] To overcome the safety hazard that may arise when older children use child safety seats because they cannot clearly distinguish between the child safety seat's own seat belt and the car's own seat belt, this utility model aims to provide a multi-mode seat belt selection control mechanism and a multi-mode seat belt seat. This utility model is achieved through the following technical solution:

[0004] A multi-mode seat belt selection control mechanism includes a support mechanism for supporting the child seat belt when deployed and capable of being retracted. One side of the support mechanism is provided with a limiting mechanism for limiting the headrest height and a control mechanism for controlling the deployment and retraction states of the support mechanism and synchronously adjusting the headrest height of the limiting mechanism, so that the support mechanism corresponds to a low headrest height in the deployed state and a high headrest height in the retracted state.

[0005] The multi-mode seat belt selection control mechanism described above includes a locking switch for releasing the extended and retracted state of the support mechanism and releasing the height adjustment limit of the limiting mechanism, and a locking mechanism for locking the extended and retracted state of the support mechanism and limiting the headrest height adjustment of the limiting mechanism.

[0006] As described above, a multi-mode seat belt selection control mechanism includes a locking mechanism comprising a first locking part for mating and connecting with a locking switch so that the locking switch can unlock the connection between the support mechanism and the locking mechanism; the first locking part is connected to a second locking part for locking the support mechanism in its extended and retracted states; and the second locking part is connected to a third locking part for cooperating with a limiting mechanism.

[0007] As described above, in a multi-mode seat belt selection control mechanism, the first locking part includes a first inclined surface for abutting against a locking switch and a first mounting hole for resetting the locking mechanism. A spring can be installed in the first mounting hole to reset the locking mechanism.

[0008] As described above, in a multi-mode seat belt selection control mechanism, the second locking part includes a first protrusion capable of engaging with a support mechanism. The first protrusion has a first engaging surface that engages with the support mechanism at a low headrest height position, a second engaging surface that engages with the support mechanism at a high headrest height position, and a pushing surface that allows the user to push the locking mechanism.

[0009] As described above, in a multi-mode seat belt selection control mechanism, the third locking part includes a first connecting rod for connecting with the second locking part and a third locking member for engaging in a limiting mechanism. The first connecting rod is provided with a first buckle for connecting with the third locking member. The third locking member is provided with a buckle hole for accommodating the first buckle and a third locking protrusion for engaging in the limiting mechanism. The first connecting rod and the third locking member are provided with springs so that the third locking member can extend and retract toward the first connecting rod.

[0010] As described above, a multi-mode seat belt selection control mechanism includes a support mechanism comprising a first support member for connecting and supporting the shoulder strap portion of the seat belt. The first support member is provided with a rotating cylinder, and the first support member is rotatable about the axis of the rotating cylinder. The first support member is connected to a limiting block for limiting the rotation of the first support member. The limiting block is provided with a cylindrical groove for accommodating the rotating cylinder and a first limiting hole for limiting the movement of a first protrusion.

[0011] As described above, a multi-mode seat belt selection control mechanism includes a locking switch comprising a pressing part for a user to press and an abutting part that abuts against a locking mechanism after the user presses the switch, causing the locking mechanism to move. The pressing part is provided with a pressing surface for the user to press, and the abutting part is provided with a second inclined surface for cooperating with and connecting with a first inclined surface.

[0012] As described above, a multi-mode seat belt selection control mechanism includes a limiting mechanism comprising a first groove for sliding a third engaging protrusion when the headrest is in a low position and a second groove for sliding the third engaging protrusion when the headrest is in a high position. A conversion part is provided between the first and second grooves to allow the headrest height to switch between a low and a high position. The conversion part includes a first conversion element and a second conversion element. The first conversion element is a first triangular protrusion, and the second conversion element is a second triangular protrusion. The first and second triangular protrusions are inverted. A third groove is provided between the hypotenuses of the first and second triangular protrusions to allow communication between the first and second grooves.

[0013] A multi-mode child safety seat includes a seat back, an adjustable headrest, a safety belt for protecting the child, and a selection control mechanism as described above on the seat back. The selection control mechanism allows the user to adjust the headrest height and select the safety belt usage mode according to the child's body shape.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. By selecting the control mechanism to control the deployment and retraction of the support mechanism and to synchronize the adjustment of the headrest height with the limiting mechanism, the control mechanism can limit the adjustment of the headrest height and link the headrest height limit with the deployment and retraction of the support mechanism. This distinguishes between the use of child seat belts and the use of the car's built-in seat belt for younger children and the use of the car's built-in seat belt for older children. This helps users differentiate between the use of child seat belts and car seat belts, preventing misuse that could cause safety hazards to children.

[0016] 2. The headrest height can be switched between the low and high positions by the linkage of the support mechanism, locking mechanism, locking switch and limit mechanism. After pressing the locking switch, the first support member on the support mechanism will retract downward under the action of gravity. It is simple and convenient to use.

[0017] 3. The unfolding and folding of the first support member allows the headrest height to correspond to the low and high headrest height positions, making it easy for users to identify the usage status of the seat back and adjust the seat back height accordingly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1This is a schematic diagram of the high-position use of the headrest of a multi-mode child safety seat with a seatbelt according to this utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of a multi-mode child safety seat with a high-position headrest, according to the present invention.

[0021] Figure 3 This is a schematic diagram of the low-position use of the headrest height of a multi-mode child safety seat according to this utility model.

[0022] Figure 4 This is a schematic diagram of the internal structure of a multi-mode child safety seat with a low headrest position, according to the present invention.

[0023] Figure 5 This is a schematic diagram of the selection control mechanism, locking mechanism, and locking switch of a multi-mode seat belt according to the present invention.

[0024] Figure 6 This is a schematic diagram of the locking mechanism of a multi-mode seat belt selection control mechanism according to the present invention.

[0025] Figure 7 This is a three-dimensional schematic diagram of the locking mechanism of the multi-mode seat belt selection control mechanism according to the present invention.

[0026] Figure 8 This is a schematic diagram of the support mechanism and locking mechanism of a multi-mode seat belt selection control mechanism according to the present invention.

[0027] Figure 9 This is a schematic diagram of the support mechanism for the selection control mechanism of a multi-mode seat belt according to the present invention.

[0028] Figure 10 This is a schematic diagram of a multi-mode seat belt selection control mechanism limiting block according to the present invention.

[0029] Figure 11 This is a schematic diagram of a locking switch for a multi-mode seat belt selection control mechanism according to the present invention.

[0030] Figure 12 This is a three-dimensional schematic diagram of the selection control mechanism, locking mechanism, and locking switch of a multi-mode seat belt according to the present invention.

[0031] Figure 13 This is a schematic diagram of the selection control mechanism and limit mechanism of a multi-mode seat belt according to the present invention.

[0032] Figure 14 This is an enlarged schematic diagram (A) of a multi-mode seat belt selection control mechanism according to the present invention. Detailed Implementation

[0033] To make the technical problems solved by this application, the technical solutions, and the beneficial effects clearer, this application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0034] Example 1: Please refer to Figure 1-14 A multi-mode seat belt selection control mechanism 100 includes a support mechanism 1 for supporting the child seat seat belt when deployed and capable of being retracted. One side of the support mechanism 1 is provided with a limiting mechanism 5 for restricting headrest height, and a control mechanism 20 for controlling the deployment and retraction states of the support mechanism 1 and synchronously adjusting the headrest height of the limiting mechanism 5. The control mechanism 20 ensures that the support mechanism 1 corresponds to a low headrest height in the deployed state and a high headrest height in the retracted state. In the deployed state, the support mechanism 1 is in the low headrest height position, allowing young children to use the child seat's own seat belt. In the retracted state, the support mechanism 1 is in the high headrest height position. For older children with the headrest at a high position, the child seat uses its own seatbelt, with the extended support mechanism serving as the primary indicator. For younger children with the headrest at a low position, the child seat uses its own seatbelt, with the retracted support mechanism serving as the secondary indicator. For older children with the headrest at a high position, the child uses the car's diagonal seatbelt, thus clearly defining age groups and preventing incorrect seatbelt use that could pose a safety hazard. The system also includes a control mechanism that limits seat height adjustment and links this height limit to the locking status of the support mechanism, thus defining the appropriate seatbelt usage for each child. The limiting mechanism restricts seat height, ensuring that the headrest can be adjusted within a certain height range.

[0035] Furthermore, as a preferred embodiment of this solution and not a limitation, the control mechanism 20 includes a locking switch 3 for releasing the unfolded and retracted state of the support mechanism 1 and releasing the height adjustment restriction of the limiting mechanism 5, and a locking mechanism 2 for locking the unfolded and retracted state of the support mechanism 1 and restricting the limiting mechanism 5 from adjusting the headrest height. Through the linkage of the support mechanism, the locking mechanism, and the locking switch, the seat height can be adjusted between the low headrest height position and the high headrest height position. After pressing the locking switch, the first support member on the support mechanism retracts downward under the action of gravity, thus facilitating user use.

[0036] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the locking mechanism 2 includes a first locking part 21 for mating and connecting with the locking switch 3 so that the locking switch 3 can unlock the connection between the support mechanism 1 and the locking mechanism 2. The first locking part 21 is connected to a second locking part 22 for locking the support mechanism 1 in the unfolded and retracted states. The second locking part 22 is connected to a third locking part 23 for cooperating with the limiting mechanism 5. The first locking part 21 and the second locking part 22 are integrally formed. The design of the first locking part 21 and the second locking part 22 being integrally formed can improve the overall mechanical strength and reliability, reduce the number of parts, reduce assembly complexity, and may reduce production costs.

[0037] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the first locking part 21 includes a first inclined surface 211 for abutting against the locking switch 3 and a first mounting hole 212 for resetting the locking mechanism 2. A spring can be installed on the first mounting hole 212 to reset the locking mechanism 2. The first inclined surface 211 causes the locking mechanism to move accordingly when pushed by the locking switch. Through the contact between the inclined surface 211 and the locking switch 3, when the locking switch is pressed, the inclined surface will convert the horizontal component force into a force that moves the locking mechanism, thereby realizing the unlocking action.

[0038] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the second locking part 22 includes a first protrusion 221 capable of engaging the support mechanism 1. The first protrusion 221 is provided with a first engaging surface 2211 that engages with the support mechanism 1 at a low headrest height position, a second engaging surface 2212 that engages with the support mechanism 1 at a high headrest height position, and a pushing surface 2213 that allows the user to push the locking mechanism 2. By providing the first engaging surface 2211 and the second engaging surface 2212, the support mechanism 1 can be locked in both the unfolded and retracted states.

[0039] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the third locking part 23 includes a first connecting rod 231 for connecting with the second locking part 22 and a third engaging member 232 for engaging in the limiting mechanism 5. The first connecting rod 231 is provided with a first buckle 2311 for connecting with the third engaging member 232. The third engaging member 232 is provided with a buckle hole 2321 for accommodating the first buckle 2311 and a third engaging protrusion 2322 for engaging in the limiting mechanism 5. The first connecting rod 231 and the third engaging member 232 are provided with springs so that the third engaging member 232 can extend and retract toward the first connecting rod 231. The cooperation between the first buckle 2311 and the buckle hole 2321 ensures a firm connection between the first connecting rod 231 and the third engaging member 232. The presence of the spring allows the third engaging member 232 to automatically reset when not subjected to external force.

[0040] Furthermore, as a preferred embodiment of this solution and not a limitation, the support mechanism 1 includes a first support member 11 for supporting the seat belt shoulder strap portion. The first support member 11 is provided with a spring, giving it elasticity. The first support member 11 has a rotating cylinder 111, which is rotatable about the axis of the rotating cylinder 111. The first support member 11 is connected to a limiting block 12 for limiting the rotation of the first support member 11. The limiting block 12 has a cylindrical groove 121 for accommodating the rotating cylinder 111 and a first protrusion 221 for limiting its movement. A limiting hole 122, through the unfolding and folding of the first support member, allows the seat back to correspond to the low headrest height position and the high headrest height position, making it easy for users to identify the seat's usage status and adjust the seat height accordingly. When using the seat belt for the appropriate age group, the first support member is fitted into the seat belt shoulder strap. In the low headrest height position, the seat belt is supported, making it easy for parents to use the seat belt and protect young children. In the high headrest height position, the seat belt is folded up, making it fit against the backrest, making it easy for older children to lean against the child seat. At the same time, the seat belt is restricted by the first support member to prevent the seat belt from being used in the second height adjustment.

[0041] Furthermore, as a preferred embodiment of this solution and not a limitation, the locking switch 3 includes a pressing part 31 for the user to press and an abutting part 32 that abuts against the locking mechanism 2 after the user presses, causing the locking mechanism 2 to move. The pressing part 31 has a pressing surface 311 for the user to press, and the abutting part 32 has a second inclined surface 321 for engaging with the first inclined surface 211. The pressing surface 311 on the pressing part 31 provides the user with a clear and easy-to-operate interface. The user only needs to apply pressure to trigger the unlocking action, and the second inclined surface 321 on the abutting part 32 engages with the first inclined surface 211 of the locking mechanism 2. Through the interaction between the inclined surfaces, the user's pressing force can be effectively converted into a thrust parallel to the direction of movement of the locking mechanism, achieving precise and efficient force transmission.

[0042] Furthermore, as a preferred embodiment of this solution and not a limitation, the limiting mechanism 5 includes a first groove 51 for sliding the third engaging protrusion 2322 when sliding at a low headrest height and a second groove 52 for sliding the third engaging protrusion 2322 when sliding at a high headrest height. A conversion part 53 is provided between the first groove 51 and the second groove 52 to allow the headrest height to switch between a low headrest height and a high headrest height. The conversion part 53 includes a first conversion member 531 and a second conversion member 532. The first conversion member 531 is a first triangular protrusion and the second conversion member 532 is a second triangular protrusion. The first triangular protrusion and the second triangular protrusion are inverted. A third groove 55 is provided between the hypotenuses of the first triangular protrusion and the second triangular protrusion to allow the first groove 51 and the second groove 52 to communicate with each other. The inverted distribution of the first triangular protrusion and the second triangular protrusion, and the third groove 55 on their hypotenuses, ensure a smooth transition from a low headrest height to a high headrest height. This design reduces potential stuttering or lag during transitions, improving the user experience. The triangular bump design allows the third engagement bump 2322 to accurately enter and exit the slide.

[0043] Example 2: This example provides a multi-mode child seat with a seat back 10, which includes an adjustable headrest 101. A seat belt 102 for child protection is located on one side of the headrest 101. The seat back 10 also includes a selection control mechanism 100 as described in the previous example. This mechanism allows the user to adjust the headrest height and select the seat belt usage mode according to the child's body shape. The first indicator is the extended support mechanism; when the headrest is low, the user uses the child seat's own seat belt to protect younger children. The second indicator is the retracted support mechanism; when the headrest is high, the user uses the car's diagonal seat belt to protect older children. This clearly distinguishes between age groups and prevents users from misusing seat belts, thus ensuring the child's safety.

[0044] The working principle of this embodiment is as follows:

[0045] A multi-mode seatbelt selection control mechanism allows for the placement of small, young children in a car seat. When the child is positioned in the low headrest position, the first support member of the support mechanism unfolds, supporting the shoulder strap of the seatbelt and creating sufficient space between the shoulder strap and the seat back to facilitate fastening the seatbelt. When a larger child needs to be placed in the car seat, the headrest is pushed to its low position near the high limit. The third locking member is blocked by the first triangular protrusion and cannot enter the high headrest position. Pressing the locking switch then pushes the second inclined surface... The first inclined surface causes the locking mechanism to move outward toward the seat, and the first protrusion in the second locking part also moves outward. The first engaging surface no longer engages with the first support member, and the first support member retracts downward under the action of gravity. The first support member engages with the second engaging surface, causing the third engaging member to extend a certain distance and push the seat upward. The first triangular protrusion no longer blocks the third engaging member, and the third engaging member moves into the third slide groove. The first connecting rod and the third engaging member are provided with springs, which cause the third engaging member to extend and retract toward the first connecting rod and then enter the second slide groove. The third engaging member is reset under the action of the spring.

[0046] When the headrest moves from the high headrest position to the low headrest position, the third locking piece is blocked by the second triangular protrusion, pulling up the first support piece and unfolding it. The first protrusion in the second locking part moves inward, and the first support piece engages with the first locking surface, locking the unfolded state of the first support piece. The first buckle pulls the third locking piece inward, and the second triangular protrusion no longer blocks the third locking piece. The third locking piece enters the third slide groove and then the second slide groove, thus realizing the conversion from the high headrest position to the low headrest position.

[0047] The above are implementation methods provided in conjunction with specific content, and it is not intended that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A multi-mode seatbelt selection control mechanism, characterized in that, The selection control mechanism (100) includes a support mechanism (1) for supporting the child seat safety belt when unfolded and for being able to be folded. The support mechanism (1) is provided with a limiting mechanism (5) for limiting the headrest height on one side and a control mechanism (20) for controlling the unfolded and folded states of the support mechanism (1) and for adjusting the headrest height of the limiting mechanism (5) synchronously, so that the support mechanism (1) is in the unfolded state corresponding to a low headrest height and the support mechanism (1) is in the folded state corresponding to a high headrest height.

2. The multi-mode seat belt selection control mechanism according to claim 1, characterized in that... The control mechanism (20) includes a locking switch (3) for releasing the unfolded and retracted state of the support mechanism (1) and releasing the height limit of the limiting mechanism (5) and a locking mechanism (2) for locking the unfolded and retracted state of the support mechanism (1) and limiting the headrest height of the limiting mechanism (5).

3. The multi-mode seat belt selection control mechanism according to claim 2, characterized in that... The locking mechanism (2) includes a first locking part (21) for matching and connecting with the locking switch (3) so that the locking switch (3) can unlock the connection between the support mechanism (1) and the locking mechanism (2). The first locking part (21) is connected to a second locking part (22) for locking the support mechanism (1) in the unfolded and retracted state. The second locking part (22) is connected to a third locking part (23) for cooperating with the limiting mechanism (5).

4. The multi-mode seat belt selection control mechanism according to claim 3, characterized in that... The first locking part (21) includes a first inclined surface (211) for abutting against the locking switch (3) and a first mounting hole (212) for resetting the locking mechanism (2). A spring can be installed on the first mounting hole (212) to reset the locking mechanism (2).

5. A multi-mode seatbelt selection control mechanism according to claim 3, characterized in that... The second locking part (22) includes a first protrusion (221) capable of engaging the support mechanism (1). The first protrusion (221) is provided with a first engaging surface (2211) engaging the support mechanism (1) at a low headrest height position, a second engaging surface (2212) engaging the support mechanism (1) at a high headrest height position, and a pushing surface (2213) that allows the user to push the locking mechanism (2).

6. The multi-mode seat belt selection control mechanism according to claim 3, characterized in that... The third locking part (23) includes a first connecting rod (231) for connecting with the second locking part (22) and a third locking member (232) for engaging in the limiting mechanism (5). The first connecting rod (231) is provided with a first buckle (2311) for connecting with the third locking member (232). The third locking member (232) is provided with a buckle hole (2321) for accommodating the first buckle (2311) and a third locking protrusion (2322) for engaging in the limiting mechanism (5). The first connecting rod (231) and the third locking member (232) are provided with springs so that the third locking member (232) can extend and retract toward the first connecting rod (231).

7. A multi-mode seatbelt selection control mechanism according to claim 5, characterized in that... The support mechanism (1) includes a first support member (11) for connecting and supporting the shoulder strap portion of the seat belt. The first support member (11) is provided with a rotating cylinder (111). The first support member (11) is rotatable about the axis of the rotating cylinder (111). The first support member (11) is connected to a limiting block (12) for limiting the rotation of the first support member (11). The limiting block (12) is provided with a cylindrical groove (121) for accommodating the rotating cylinder (111) and a first limiting hole (122) for limiting the movement of the first protrusion (221).

8. A multi-mode seatbelt selection control mechanism according to claim 4, characterized in that... The locking switch (3) includes a pressing part (31) for the user to press and an abutting part (32) that abuts against the locking mechanism (2) after the user presses it, causing the locking mechanism (2) to move. The pressing part (31) is provided with a pressing surface (311) for the user to press, and the abutting part (32) is provided with a second inclined surface (321) for cooperating with the first inclined surface (211).

9. A multi-mode seatbelt selection control mechanism according to claim 6, characterized in that... The limiting mechanism (5) includes a first groove (51) for sliding the third locking protrusion (2322) when the headrest is in a low position and a second groove (52) for sliding the third locking protrusion (2322) when the headrest is in a high position. A conversion part (53) is provided between the first groove (51) and the second groove (52) to allow the headrest height to be switched between the low headrest height and the high headrest height. The conversion part (53) includes a first conversion member (531) and a second conversion member (532). The first conversion member (531) is a first triangular protrusion and the second conversion member (532) is a second triangular protrusion. The first triangular protrusion and the second triangular protrusion are inverted. A third groove (55) is provided between the hypotenuses of the first triangular protrusion and the second triangular protrusion to allow the first groove (51) and the second groove (52) to communicate with each other.

10. A multi-mode child safety seat, characterized in that, The seat includes a seat back (10), on which a height-adjustable headrest (101) is provided, and a seat safety belt (102) for protecting children is provided on one side of the headrest (101). The seat back (10) is provided with a selection control mechanism (100) according to any one of claims 1 to 9, wherein the selection control mechanism (100) allows the user to adjust the height of the headrest according to the child's body shape and select the use mode of the safety belt.

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