Base of automobile child safety seat

By using a seat belt clamp that rotates between the clamp shell and the base backrest on the child safety seat base, and utilizing a sliding unlocking method with a drive component and a buckle, the problem of separation of the child safety seat during emergency braking is solved, improving the stability of seat belt clamping and connection, and reducing installation space requirements.

CN223778226UActive Publication Date: 2026-01-09NINGBO YUANYUAN AUTO ACCESSORIES
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Patent Information

Application Number
CN202520393675.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-01-09
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

In existing technologies, child safety seats are prone to detaching during sudden braking, which reduces the safety of children. Furthermore, the rotating opening method of the button-type seat belt clamp increases the installation space requirements.

Method used

The seat belt clamp uses a rotating connection between the clamp shell and the base backrest. It utilizes a sliding unlocking method with a drive component and a buckle, combined with an elastic reset component, to switch between the locking and unlocking states of the buckle, reducing the rotation space required between the seat belt clamp and the base backrest.

Benefits of technology

It improves the stability of seat belt clamping, reduces the thickness and weight of the base backrest, adapts to the user's habit of opening the seat belt clamp from the top, and enhances the stability of seat belt clamping and connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

A base of an automobile child safety seat comprises a base body and a base backrest, a safety belt clamp is arranged on the inner side face of the base backrest, the safety belt clamp comprises a clamping plate shell, one side of the clamping plate shell is rotationally connected with the base backrest, a clasp is arranged on the other side of the clamping plate shell, and the clasp is connected with the clamping plate shell. Clamping holes are formed in the positions, corresponding to the clasps, of the base backrest; the clamping plate shell is provided with a driving structure connected with the clasp, the clasp can move under the action of the driving structure, and the clamping device is characterized in that the driving structure comprises a driving piece, a handle part for external force application is formed on the driving piece in a protruding mode, the driving piece is connected to the clamping plate shell in a sliding mode, and the clasp can move under the action of the driving structure. And the clamping plate shell can slide back and forth along the plane direction of the clamping plate shell. According to the utility model, the buckle hook and the clamping hole are unlocked in a sliding manner, so that the space for rotating the buckle hook between the safety belt clamp and the base backrest is saved, the space of the base for arranging the safety belt clamp is smaller, and the thickness and the weight required by the base backrest are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of child safety seat technology, and in particular to a base for a car child safety seat with a seat belt clamp. Background Technology

[0002] As living standards improve, more and more people are choosing to install child safety seats in their cars to ensure their children's safety while riding. A safety seat consists of a base that connects to the car seat and a seat that sits on the base. When a child is in a safety seat, the child needs to be secured to the seat at three points using a seatbelt or strap to prevent the child from being ejected from the seat during sudden braking. However, sudden braking can also cause the seat to tend to separate from the base, reducing the safety of the child.

[0003] To address the aforementioned issues, existing technology includes Chinese invention application CN202111525130.3 (publication number CN116262461A), entitled "Seatbelt Clip for Child Safety Seats Combining Safety and Convenience," which discloses a child safety seat equipped with a seatbelt clip. The clip's housing is rotatably connected to the base backrest. When the housing rotates close to the engaging component, the clip's hook assembly engages with the engaging component of the base backrest to clamp the car seatbelt between the housing and the base backrest. The engagement state of the hook assembly and the engaging component is controlled by a button on the outside of the housing. The user can open the clip by pressing the button inward and then rotating it outward, placing the seatbelt between the clip housing and the base backrest, and then rotating it to close the clip. At this time, the seatbelt is clamped in the seatbelt clip and is in a taut state, securing the base and seat and improving the safety of the child.

[0004] The aforementioned patented seatbelt clamp can clamp the seatbelt, and the design of releasing the latch by pressing the inward button makes it convenient for users to use the seatbelt clamp. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide another base for a car child safety seat that is equipped with a seat belt clamp and is convenient for users to use, in light of the above-mentioned existing technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: The base of the car child safety seat includes a base body and a base backrest connected to the rear side of the base body. A seatbelt clamp is provided on the inner side of the base backrest. The seatbelt clamp includes a clamp shell. One side of the clamp shell is rotatably connected to the base backrest via a rotating connection structure. A movably disposed hook is provided on the other side of the clamp shell opposite to the rotating connection structure. A locking hole is provided on the base backrest at a position corresponding to the hook. A driving structure connected to the hook is provided on the clamp shell. The hook can move under the action of the driving structure, thereby having a locked state where it engages with the edge of the latch hole, and an unlocked state where it disengages from the edge of the latch hole and can be moved out of the latch hole; characterized in that: the driving structure includes a driving member connected to the hook, the driving member having a handle portion protruding for applying external force, the driving member being slidably connected to the clamping plate shell, and being able to slide back and forth along the plane of the clamping plate shell, thereby switching between the locked and unlocked states of the hook during the process of applying external force to the handle portion and causing the driving member to slide back and forth along the plane of the clamping plate shell.

[0007] To facilitate user locking of the hook, the drive structure further includes an elastic reset member acting on the drive component. The two ends of the elastic reset member abut against the drive component and the clamping plate housing, respectively. When the handle is subjected to external force causing the hook to disengage from the edge of the locking hole, the elastic reset member generates an elastic reset force. When the external force on the handle is released, the drive component resets under the elastic reset force of the elastic reset member, and the hook on the drive component engages with the edge of the locking hole. With the clamping plate housing close to the backrest of the base, the user can release the handle to allow the elastic reset member to push the drive component back to its original position until the hook engages with the locking hole.

[0008] To ensure a stable connection between the hook and the driving component, the hook further includes:

[0009] The connecting part is fixedly connected to the driving component;

[0010] A hook-holding part is attached to the connecting part and is used to engage with a locking hole.

[0011] To facilitate the user in opening or closing the seatbelt clamp, the clamp housing further includes an accommodating space. The driving component is movably disposed within this accommodating space. The clamp housing has a through hole on its inner side near the base backrest, corresponding to the hook portion, which extends out of the through hole and engages with a locking hole. The clamp housing also has an operating window on its outer side away from the base backrest, allowing the handle to pass through and be exposed. The user opens or closes the seatbelt clamp by pulling or releasing the handle through the operating window. The driving component and hook, located within the accommodating space, rotate synchronously with the clamp housing during its rotation.

[0012] To accommodate users' habit of opening the seatbelt clamp from the top, the rotating connection structure is further configured as a pivot connected to the lower side of the clamp shell, while the hook is located on the upper side of the clamp shell. Users can open the seatbelt clamp from above the base backrest. Simultaneously, the hook's location on the upper side of the clamp shell ensures a tight fit between the clamp shell and the base backrest when the seatbelt clamp is closed. This design maximizes the distance between the hook and the pivot, thus providing maximum resistance when the seatbelt is tensioned and clamped between the clamp and the base backrest. This enhances the stability of the seatbelt clamping by providing maximum resistance to the force exerted by the hook and the locking hole (resisting the force of the seatbelt pulling the clamp shell forward), preventing accidental opening of the seatbelt clamp when the seatbelt is tensioned. This design offers the advantage of "two uses in one device."

[0013] To enhance the connection between the base and the car seat, a storage compartment is further provided on the rear side of the base backrest, containing a lower seatbelt strap. The base backrest has a lower seatbelt strap hole through which the strap passes. One end of the strap is fixedly connected to the storage compartment, while the other end extends through the lower seatbelt strap hole to the front side of the base backrest and is held between the base backrest and the seatbelt clamp. An upper pull strap for connecting to the car seat is fixedly connected to the upper part of the base backrest. The upper pull strap connects the upper part of the base backrest to the car seat, and the lower seatbelt strap connects the lower part of the base backrest to the car seat, ensuring a stable connection between the base backrest and the car seat.

[0014] To further improve the stability of the lower strap fixing method, hook assemblies are provided on both sides of the base backrest, including a first hook on the left side of the base backrest and a second hook on the right side of the base backrest. The lower strap splits into two strands after passing through the strap hole and is respectively threaded into the first and second hooks. This technical solution avoids the left-right swaying of the base backrest during vehicle operation.

[0015] In order to enable the seat belt clamp to clamp the lower strap, the clamping plate shell has a partial inward protrusion on the inner side facing the back of the base to form a pressing part corresponding to the lower strap hole. When the lower strap passes through the lower strap hole, the lower strap is clamped between the pressing part and the hole wall of the lower strap hole.

[0016] To facilitate user attachment of the seatback to the base using the seatbelt, the base backrest is further equipped with hook assemblies on both sides, including a first hook located on the lower left side of the base backrest, a second hook located on the lower right side of the base backrest, and third hooks located on both sides of the upper part of the base backrest. The seatbelt passes through the first, second, and third hooks, securing the base to the car seat at three points.

[0017] Furthermore, a fixing plate is fixedly connected to the inner side of the base backrest, and the card hole is opened on the fixing plate.

[0018] Compared with the prior art, the advantages of this utility model are as follows: This utility model provides another base structure for a car child safety seat with a seat belt clamp installed, which is convenient for users; in the seat belt clamp of this utility model, the driving component can slide back and forth along the plane of the clamp shell, and the user can release the locking state of the buckle by applying force to the handle; the sliding unlocking method of the buckle and the locking hole in this utility model, compared with the existing unlocking method of pressing the button inward to make the buckle rotate and disengage from the connecting shaft, eliminates the space for buckle rotation between the seat belt clamp and the base backrest, making the base of this utility model smaller for setting the seat belt clamp, and reducing the required thickness and weight of the base backrest. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the base structure according to an embodiment of the present utility model;

[0020] Figure 2 This is an exploded view of the base backrest and seat belt clamp of an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the seat belt clip according to an embodiment of the present utility model;

[0022] Figure 4 This is an exploded view of the structure of the seat belt clamp according to an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the hook structure according to an embodiment of the present utility model;

[0024] Figure 6 This is a rear view of the strap fixing base according to an embodiment of the present utility model;

[0025] Figure 7 This is a front view of the strap fixing base according to an embodiment of the present utility model;

[0026] Figure 8 This is an exploded view of the base backrest and seat belt clamp from another perspective of an embodiment of this utility model.

[0027] Figure 9 This is a schematic diagram of the internal structure of the base backrest according to an embodiment of the present utility model;

[0028] Figure 10 This is an exploded view of the upper part of the base backrest in an embodiment of this utility model. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] like Figures 1-10The image shown is the preferred embodiment of this utility model. The base of the car child safety seat in this embodiment is primarily used to ensure the safety of children while riding. Children need to be secured to the car seat using a seatbelt to ensure the child safety seat is stably installed. The seatbelt can only bear force when tensioned, and a mechanism is needed to maintain this tension during the ride. Existing technology uses a button-type seatbelt clip on the backrest of the base to maintain seatbelt tension. However, the demand for various adjustment methods for seatbelt clips and the drawback of the button-type clip's internal hook rotation opening method increasing installation space requirements have led the inventors to design another car child safety seat base with a seatbelt clip, which is convenient for users and requires less installation space. The structure of this car child safety seat base will be described in detail below:

[0031] See Figures 1 to 4 The car child safety seat base of this embodiment includes a base body 1, a base backrest 2 connected to the rear side of the base body 1, and a seat belt clamp 3 disposed on the inner side of the base backrest 2. The seat belt clamp 3 includes a clamp shell 31, a drive component 32, and a buckle 33. One side of the clamp shell 31 is rotatably connected to the base backrest 2 via a rotatable connection structure. The clamp shell 31 has a movable buckle 33 on the opposite side of the rotatable connection structure. The base backrest 2 has a locking hole 21 at a position corresponding to the buckle 33. The clamp shell 31 has a drive structure connected to the buckle 33, allowing the buckle 33 to be engaged with the drive structure. The structure moves under the action of the structure, so that the hook 33 has a locked state where it engages with the edge of the slot 21, and an unlocked state where it disengages from the edge of the slot 21 and can be moved out of the slot 21; the driving structure includes a driving member 32 connected to the hook 33, and a handle portion 321 for applying external force is formed on the driving member 32. The driving member 32 is slidably connected to the clamp shell 31 and can slide back and forth along the plane of the clamp shell 31. When an external force is applied to the handle portion 321, causing the driving member 32 to slide back and forth along the plane of the clamp shell 31, the locking state and unlocking state of the hook 33 are switched.

[0032] The drive structure also includes an elastic reset member 34 acting on the drive member 32. The two ends of the elastic reset member 34 abut against the drive member 32 and the clamping shell 31, respectively. When the handle portion 321 is subjected to external force causing the hook 33 to disengage from the edge of the locking hole 21, the elastic reset member 34 generates an elastic reset force. When the external force on the handle portion 321 is released, the drive member 32 resets under the elastic reset force of the elastic reset member 34, and the hook 33 on the drive member 32 engages with the edge of the locking hole 21. When the clamping shell 31 is close to the base backrest 2, the user can release the handle portion 321 to allow the elastic reset member 34 to push the drive member 32 back to reset until the hook 33 engages with the locking hole 21, thus facilitating the user to lock the hook 33.

[0033] See Figure 5 The hook 33 includes a connecting part 331 and two hook holding parts 332 with the same structure arranged at intervals. The connecting part 331 is fixedly connected to the driving member 32, and the two hook holding parts 332 are connected to the connecting part 331 for engaging with the card hole 21, thereby stabilizing the connection between the hook 33 and the driving member 32.

[0034] See Figure 3 , 4 The clamp housing 31 has an internal accommodating space, and the driving component 32 is movably disposed within the accommodating space of the clamp housing 31. The clamp housing 31 has a through hole 311 on its inner side near the base backrest 2, corresponding to the hook portion 332. The hook portion 332 extends out of the through hole 311 and engages with the locking hole 21. The clamp housing 31 has an operating window 310 on its outer side away from the base backrest 2, through which the handle portion 321 passes and is exposed. The user opens or closes the seatbelt clamp 3 by pulling or releasing the handle portion 321 through the operating window 310. The main body of the driving component 32 and the main body of the hook 33 are both located within the accommodating space, allowing them to rotate synchronously with the clamp housing 31 during rotation, facilitating the user's opening or closing of the seatbelt clamp 3.

[0035] The rotating connection structure consists of a rotating shaft 4 connected to the lower side of the clamping shell 31, while the hook 33 is located on the upper side of the clamping shell 31. The user can open the seatbelt clamp 3 from above the base backrest 2. Simultaneously, the hook 33's location on the upper side of the clamping shell 31 ensures that the clamping shell 31 fits tightly against the base backrest 2 after the seatbelt clamp 3 is closed. This design maximizes the distance between the hook 33 and the rotating shaft 4, thus providing maximum resistance when the seatbelt a is tensioned and clamped between the seatbelt clamp 3 and the base backrest 2. This connection between the hook 33 and the locking hole 21 (resisting the force that pulls the clamping shell 31 forward with the seatbelt a) provides maximum resistance, improving the stability of the seatbelt a clamping mechanism and preventing the seatbelt clamp 3 from accidentally opening when the seatbelt a is tensioned. This design offers the advantage of "dual functionality" and caters to the user's habit of opening the seatbelt clamp 3 from above.

[0036] See Figure 6The base backrest 2 has a storage compartment 22 on its rear side, which stores a lower strap 23. The base backrest 2 has a lower strap hole 24 through which the lower strap 23 passes. One end of the lower strap 23 is fixedly connected to the storage compartment 22, while the other end passes through the lower strap hole 24 to the front side of the base backrest 2 and is clamped between the base backrest 2 and the seatbelt clamp 3. An upper pull strap 27 for connecting to the car seat is fixedly connected to the upper part of the base backrest 2. The upper pull strap 27 connects the upper part of the base backrest 2 to the car seat, and the lower strap 23 connects the lower part of the base backrest 2 to the car seat, ensuring a stable connection between the base backrest 2 and the car seat. The base backrest 2 also has a connection hole 28 through which the upper pull strap 27 passes, enhancing the connection between the base and the car seat.

[0037] See Figure 6 and Figure 7 The base backrest 2 is provided with hook assemblies 25 on both sides, including a first hook 251 on the left side of the base backrest 2 and a second hook 252 on the right side of the base backrest 2. The lower strap 23 is divided into two strands after passing through the lower strap hole 24 and is respectively threaded into the first hook 251 and the second hook 252, which prevents the base backrest 2 from swaying left and right during the car's movement and further improves the stability of the lower strap 23 fixing method.

[0038] See Figure 3 and Figure 8 The clamping plate shell 31 has a partial inward protrusion on the inner side of the base back 2 to form a pressing part 312 corresponding to the lower strap hole 24. When the lower strap 23 passes through the lower strap hole 24, the lower strap 23 is clamped between the pressing part 312 and the hole wall of the lower strap hole 24, thereby enabling the seat belt clamp 3 to clamp the lower strap 23.

[0039] See Figure 1 The base backrest 2 has hook assemblies 25 on both sides, including a first hook 251 on the lower left side of the base backrest 2, a second hook 252 on the lower right side of the base backrest 2, and third hooks 253 on both sides of the upper part of the base backrest 2. At this time, the car's built-in seat belt a can be used to secure the base of the child safety seat. First, open the seat belt clamp 3, then pass the lower side of the car's built-in seat belt a horizontally through the first hook 251 and the second hook 252, and the upper side of the car's built-in seat belt a through the third hook 253. Secure the seat belt a at three points using the male buckle on the car's built-in seat belt a and the female buckle on the car seat. Finally, close the seat belt clamp 3, locking the middle of the seat belt a again between the clamp shell 31 of the seat belt clamp 3 and the base backrest 2, making it convenient for the user to use the seat belt a to secure the base backrest 2.

[0040] Finally, see Figure 9 and Figure 10, on the inner side of the base backrest 2, there is a fixed connection with a fixing plate 26, and a card hole 21 is opened on this fixing plate 26. The fixing plate 26 can be a metal part to enhance the structural strength of the wall surface of the card hole 21; in addition, a connection window 261 communicating with the connection hole 28 is opened in the upper part of the fixing plate 26, and a "day" - shaped fixing piece 29 is provided in the upper part of the base backrest 2. The upper part of the base backrest 2 is fixedly connected with the upper pull - belt 27 through the "day" - shaped fixing piece 29. The "day" - shaped fixing piece 29 is provided with a first pull - belt hole 291 and a second pull - belt hole 292 that communicate with the connection window 261 and through which the upper pull - belt 27 passes. The upper pull - belt 27 passes through the connection hole 28, the connection window 261, the first pull - belt hole 291, and the second pull - belt hole 292 in sequence from back to front and is connected with the "day" - shaped fixing piece 29.

[0041] The actions of the base tensioning lower binding strap 23 and the safety belt a of the vehicle child safety seat in this embodiment are as follows:

[0042] 1) The action of tensioning the vehicle -自带safety belt a is as follows: First, the user lifts the hand part 321 upwards and turns it outwards to open the safety - belt clip 3, and passes the safety belt a through the hook member group 25 and places it between the clamping plate shell 31 and the base backrest 2. The specific passing - through method is: Refer to Figure 1 , first horizontally pass the lower side of the vehicle -自带safety belt a through the first hook member 251 and the second hook member 252, pass the upper side of the vehicle -自带safety belt a through the third hook member 253, and use the male lock on the vehicle -自带safety belt a to perform three - point fixation with the female lock on the vehicle seat; after the connection is completed, lift the hand part 321 upwards and turn it inwards until the clamping plate shell 31 fits with the base backrest 2, then release the hand part 321. The safety belt a is clamped between the safety - belt clip 3 and the base backrest 2, in a tensioned state, and the base and the vehicle seat are fixed in a three - point fixation manner.

[0043] 2) The actions of tensioning the lower binding strap 23 and the upper binding strap of the child seat and fixing the base and the vehicle seat are as follows: Refer to Figure 6 and Figure 7, the user first takes out the lower strap 23 from the storage bin 22, lifts the upper pulling hand part 321 upwards and turns it outwards to open the seat belt clip 3; after the seat belt clip 3 is opened, both strands of the lower strap 23 are passed from back to front through the lower strap holes 24 and then extend respectively to the left and right sides and correspondingly pass through the first hook member 251 and the second hook member 252, and then extend backwards to be connected to the vehicle seat; after the connection is completed, lift the upper pulling hand part 321 upwards and turn it inwards until the clamping plate shell 31 fits with the base backrest 2, then release the pulling hand part 321. The lower strap 23 is clamped between the seat belt clip 3 and the base backrest 2, in a tensioned state, and the lower part of the base backrest 2 is connected to the vehicle seat. The upper part of the base backrest 2 is stabilized by the connection between the rear end of the upper pulling strap 27 and the vehicle seat, and the front end of the upper pulling strap 27 passes through the first pulling strap hole 291 and the second pulling strap hole 292 and is connected to itself to realize the fixation of the "day" - shaped fixing piece 29 and the upper pulling strap 27.

[0044] The utility model provides another base structure of a vehicle child safety seat equipped with a seat belt clip and convenient for users to use; in the seat belt clip of the utility model, the driving member can reciprocally slide along the plane direction of the clamping plate shell, and the user releases the locking state of the buckle by applying force to the pulling hand part; in the utility model, the sliding unlocking method of the buckle and the clamping hole, compared with the existing unlocking method of pressing an inner button to make the buckle rotate away from the connecting shaft, saves the space for the rotation of the buckle between the seat belt clip and the base backrest, makes the space for setting the seat belt clip in the base of the utility model smaller, and reduces the required thickness and weight of the base backrest.

Claims

1. A base for a child car seat, comprising a base body (1), a base backrest (2) connected to the rear side of the base body (1), a seat belt clamp (3) provided on the inner side of the base backrest (2), the seat belt clamp (3) comprising a clamp shell (31), one side of the clamp shell (31) being rotatably connected to the base backrest (2) via a rotatable connection structure, the clamp shell (31) having a movable hook (33) on the opposite side of the rotatable connection structure, the base backrest (2) having a locking hole (21) at a position corresponding to the hook (33); the clamp shell (31) having a drive structure connected to the hook (33), the hook (33) being movable under the action of the drive structure, thereby having a locked state of engaging with the edge of the locking hole (21), and an unlocked state of disengaging from the edge of the locking hole (21) and being able to move out of the locking hole (21); characterized in that: The driving structure includes a driving member (32) connected to the hook (33). The driving member (32) has a handle (321) protruding out for applying external force. The driving member (32) is slidably connected to the clamp shell (31) and can slide back and forth along the plane of the clamp shell (31). When an external force is applied to the handle (321) to make the driving member (32) slide back and forth along the plane of the clamp shell (31), the locking state and unlocking state of the hook (33) are switched.

2. The base according to claim 1, characterized in that: The drive structure also includes an elastic reset member (34) acting on the drive member (32). The two ends of the elastic reset member (34) abut against the drive member (32) and the clamp shell (31) respectively. When the handle part (321) is subjected to external force and the hook (33) is disengaged from the edge of the locking hole (21), the elastic reset member (34) generates an elastic reset force. When the external force on the handle part (321) is released, the drive member (32) is reset under the action of the elastic reset force of the elastic reset member (34), and the hook (33) on the drive member (32) engages with the edge of the locking hole (21).

3. The base according to claim 1, characterized in that, The hook (33) includes: The connecting part (331) is fixedly connected to the driving member (32); The hook (332) is attached to the connecting part (331) and is used to engage with the locking hole (21).

4. The base according to claim 3, characterized in that, The clamp shell (31) has an internal accommodating space, and the driving member (32) is movably disposed in the accommodating space of the clamp shell (31). The clamp shell (31) has a through hole (311) on the inner side near the base backrest (2) that corresponds to the hook part (332). The hook part (332) extends out of the through hole (311) and can engage with the locking hole (21). The clamp shell (31) has an operating window (310) on the outer side away from the base backrest (2) for the handle part (321) to pass through and be exposed.

5. The base according to claim 1, characterized in that: The rotating connection structure is a rotating shaft (4) connected to the lower side of the clamping shell (31), while the hook (33) is located on the upper side of the clamping shell (31).

6. The base according to any one of claims 1 to 5, characterized in that: The backrest (2) of the base has a storage compartment (22) on its rear side, which stores a lower strap (23). The backrest (2) of the base has a lower strap hole (24) through which the lower strap (23) passes. One end of the lower strap (23) is fixedly connected to the storage compartment (22), while the other end passes through the lower strap hole (24) to the front side of the backrest (2) and is clamped between the backrest (2) and the seat belt clamp (3). The upper part of the backrest (2) is fixedly connected to an upper pull strap (27) for connecting to the car seat.

7. The base according to claim 6, characterized in that: The base backrest (2) is provided with hook assembly (25) on both sides, including a first hook (251) on the left side of the base backrest (2) and a second hook (252) on the right side of the base backrest (2). The lower strap (23) is divided into two strands after passing through the lower strap hole (24) and is respectively inserted into the first hook (251) and the second hook (252).

8. The base according to claim 6, characterized in that: The clamp shell (31) has a pressing part (312) that protrudes inward on the inner side of the base back (2) to form a corresponding lower strap hole (24). When the lower strap (23) passes through the lower strap hole (24), the lower strap (23) is clamped between the pressing part (312) and the hole wall of the lower strap hole (24).

9. The base according to any one of claims 1 to 5, characterized in that: The base backrest (2) is provided with hook assemblies (25) on both sides, including a first hook (251) on the lower left side of the base backrest (2), a second hook (252) on the lower right side of the base backrest (2), and a third hook (253) on both sides of the upper part of the base backrest (2).

10. The base according to claim 1, characterized in that: A fixing plate (26) is fixedly connected to the inner side of the base backrest (2), and the card hole (21) is opened on the fixing plate (26).

Citation Information

Patent Citations

  • Safety belt clamp for child safety seat with safety and convenience

    CN116262461A

  • Safety Belt Clamp for Child Safety Seats with Both Safety and Convenience

    CN116262461B