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

Abstract

The present application discloses a safety belt clip for a child safety seat that combines safety and portability. The clip comprises a connecting shaft, a latch, and a clip body. The connecting shaft is laterally connected to the inner side of the child safety seat's backrest. The latch is laterally connected to the inner side of the backrest and located above the connecting shaft. The clip body comprises a housing, a hook assembly, and an elastic member. The lower side of the housing is sleeved on the connecting shaft and rotates relative to the backrest about the connecting shaft. The upper side of the housing has a mounting groove extending through the front and rear sides of the housing. At least a portion of the hook assembly is located within the mounting groove and is rotatably connected to the housing. The elastic member drives the hook assembly to constantly rotate in the direction of engaging the latch. When the housing rotates until the hook assembly approaches the latch, the hook assembly, driven by the elastic member, engages the latch, thereby clamping the vehicle seat belt between the housing and the backrest. This design enables the child safety seat to be stably placed on the vehicle seat to ensure the safety of the child.

Description

Technical Field

[0001] The present application relates to the technical field of child safety seats, and in particular to a safety belt clip for a child safety seat that is both safe and convenient. Background Art

[0002] With the popularity of cars, child safety seats are widely favored by consumers. Child safety seats can minimize the injuries suffered by children in the event of emergency braking or accidental collisions. Therefore, how to effectively improve the stability of child safety seats placed on car seats has become an urgent problem to be solved. Summary of the Invention

[0003] The embodiment of the present application provides a safety belt clip for a child safety seat that is both safe and convenient. By clamping the car seat belt, the child safety seat can be stably placed on the car seat to ensure the safety of the child.

[0004] The embodiment of the present application provides a safety belt clip for a child safety seat that combines safety and convenience, which is suitable for being arranged on the inner side of the backrest of the child safety seat to clamp the car seat belt, thereby realizing the connection between the child safety seat and the car seat; the safety belt clip for a child safety seat that combines safety and convenience comprises a connecting shaft, a clamping piece and a clamp body, the connecting shaft is fixedly connected to the inner side of the backrest of the child safety seat in a transverse direction, the clamping piece is fixedly connected to the inner side of the backrest of the child safety seat in a transverse direction and is located above the connecting shaft, the clamp body comprises a shell, a hook, The hook assembly and the elastic member, at least part of the outer periphery of the shell is provided with a chamfer, the lower side of the shell is sleeved on the connecting shaft and rotates around the connecting shaft relative to the backrest of the child safety seat, the lower side of the shell has a mounting groove running through the front and rear sides of the shell, at least part of the hook assembly is located in the mounting groove and is rotatably connected to the shell, the elastic member drives the hook assembly to always have a movement tendency to rotate in the direction of the engaging engaging member, when the shell rotates until the hook assembly approaches the engaging member, the hook assembly is driven by the elastic member to engage the engaging member to clamp the car seat belt between the shell and the backrest of the child safety seat.

[0005] The child safety seat belt clip of the embodiment of the present application is a device for a child safety seat that combines safety and convenience. The shell is connected to the backrest of the child safety seat via a connecting shaft and can be rotated relative to the backrest of the child safety seat. When the hook assembly is disengaged from the engaging part and the shell is rotated away from the backrest of the child safety seat, the user can pass the car safety belt between the shell and the backrest of the child safety seat. Then, the user rotates the shell toward the backrest of the child safety seat until the hook assembly approaches the engaging part. The hook assembly engages the engaging part under the drive of the elastic part, thereby achieving relative fixation of the position between the shell and the backrest of the child safety seat, so as to clamp the car safety belt between the shell and the child safety seat, and then the child safety seat is stably placed on the car seat by clamping the car safety belt with the seat belt clip.

[0006] In some embodiments, the hooking assembly includes a hooking member and an operating member. The hooking member is located in the mounting groove and is rotatably connected to the shell. The hooking member is used to engage with the locking member, and the hooking member always has a tendency to rotate in the direction of engaging the locking member under the drive of the elastic member. The operating member is at least partially located in the mounting groove and is rotatably connected to the shell. The operating member can be rotated relative to the shell until it abuts against the hooking member, thereby driving the hooking member to rotate relative to the shell in the direction of resisting the elastic force of the elastic member, so that the hooking member disengages from the locking member.

[0007] Based on the above embodiment, the user uses the operating member and applies external force to the operating member, so that the entire operating member rotates relative to the shell around the hinge point between the operating member and the shell, and the operating member rotates until it abuts against the hook member. Driven by the operating member, the hook member rotates relative to the shell around the hinge point between the operating member and the shell in the direction of resisting the elastic force of the elastic member until it disengages from the engaging member, so that the user can remove the car seat belt between the shell and the backrest of the child safety seat.

[0008] In some embodiments, the elastic member includes a first torsion spring and a second torsion spring. The first torsion spring is located in the installation groove and abuts the operating member and the shell. The second torsion spring is located in the installation groove and abuts the hook member and the shell. During the rotation of the operating member, the elastic force of the first torsion spring and the second torsion spring is overcome and the hook member is driven to rotate in a direction of disengagement from the engaging member.

[0009] Based on the above embodiment, by designing the first torsion spring, during the rotation of the operating member, the first torsion spring generates a first elastic deformation under the action of the operating member, and the first elastic potential energy corresponding to the first elastic deformation is converted into the kinetic energy of the operating member, thereby realizing the automatic reverse rotation and reset of the operating member; similarly, by designing the second torsion spring, the second torsion spring generates a second elastic deformation under the action of the operating member, and the second elastic potential energy corresponding to the second elastic deformation is converted into the kinetic energy of the hooking member, thereby realizing the automatic reverse rotation and reset of the hooking member.

[0010] In some embodiments, the operating member includes an operating portion and an abutment portion, the operating portion is at least partially located in the mounting groove, the abutment portion is located in the mounting groove and connected to the operating portion, and the abutment portion has an arc-shaped surface bent back to the hooking member. During the rotation of the operating member, the abutment portion abuts against the hooking member and drives the hooking member to rotate in a direction of disengagement from the engaging member.

[0011] Based on the above embodiment, the user applies an external force to the operating part, and the operating part rotates relative to the shell under the action of the external force. The operating part drives the abutting part connected to it to rotate relative to the shell, and the abutting part rotates relative to the shell until it abuts against the hooking part and drives the hooking part to rotate in the direction of disengaging from the engaging part, so that the hooking part rotates relative to the shell until it disengages from the engaging part.

[0012] In some embodiments, the operating member further includes a limiting portion, which is provided on a rotation path of the hooking member disengaging from the engagement with the engaging member to limit the hooking member from rotating in a direction of disengaging from the engagement with the engaging member.

[0013] Based on the above embodiment, through the design of the limiting portion, the limiting portion can limit the hooking member from rotating relative to the housing until it is disengaged from the engaging member, thereby enhancing the connection stability between the hooking member and the engaging member.

[0014] In some embodiments, the hooking member includes a connecting portion and two hooking portions, the two hooking portions are sheet-like structures, and are used to engage and connect with the engaging member. The connecting portion is located between the two hooking portions and is connected to the two hooking portions. The operating member can be rotated relative to the shell until it abuts against the connecting portion, and one of the hooking portion and the connecting portion is rotatably connected to the shell.

[0015] Based on the above embodiment, the connection stability of the shell when the hook holding part and the engaging part are engaged is enhanced through the design of the two hook holding parts; through the design of the connecting part, the connecting part is used to connect the two hook holding parts on the one hand to achieve synchronous rotation of the two hook holding parts relative to the shell, and the connecting part is used to achieve effective abutment with the operating part on the other hand, so that the hook holding part can rotate relative to the shell.

[0016] In some embodiments, a clamping rib is provided vertically protruding on one side of the shell facing the backrest of the child safety seat, and the clamping rib corresponds to a vertical clamping groove provided on the backrest of the child safety seat. When the shell is rotated to engage the hook assembly with the engaging piece, the clamping rib is placed in the vertical clamping groove to clamp the car seat belt.

[0017] Based on the above embodiment, the car seat belt is clamped by designing clamping ribs and vertical clamping grooves. The clamping ribs and vertical clamping grooves limit the car seat belt and also increase the contact area between the car seat belt and the shell, thereby enhancing the stability of the car seat belt clamped between the shell and the backrest of the child safety seat.

[0018] In some embodiments, the lower side of the housing has a mounting hole for the connecting shaft to pass through.

[0019] Based on the above embodiment, the connecting shaft passes through the lower side of the housing and is laterally fixedly connected to the inner side of the backrest of the child safety seat, thereby effectively achieving the flexibility of the clamp body to rotate relative to the backrest of the child safety seat.

[0020] In some embodiments, in a plane perpendicular to the axis of the connecting shaft, the hole cross-section of the mounting hole is circular, the cross-section of the connecting shaft is polygonal, and the outer wall surface of the connecting shaft is tangent to the hole wall surface of the mounting hole; or in a plane perpendicular to the axis of the connecting shaft, the cross-section of the connecting shaft is circular, the hole cross-section of the mounting hole is polygonal, and the outer wall surface of the connecting shaft is tangent to the hole wall surface of the mounting hole.

[0021] Based on the above embodiment, the outer wall surface of the connecting shaft is tangent to the hole wall surface of the mounting hole, which reduces the contact area between the shell and the connecting shaft to achieve the effect of reducing the friction between the two, thereby improving the smoothness of the shell's rotation relative to the backrest of the child safety seat.

[0022] In some embodiments, in a plane perpendicular to the axis of the connecting shaft, the hole cross-section of the mounting hole is circular, the cross-section of the connecting shaft includes at least two oppositely arranged circular arcs, and the radius of curvature corresponding to each circular arc is the same as the radius of curvature of the circle; or in a plane perpendicular to the axis of the connecting shaft, the cross-section of the connecting shaft is circular, the hole cross-section of the mounting hole includes at least two oppositely arranged circular arcs, and the radius of curvature corresponding to each circular arc is the same as the radius of curvature of the circle.

[0023] Based on the above embodiment, the outer wall surface of the connecting shaft partially fits with the hole wall surface of the mounting hole, reducing the contact area between the shell and the connecting shaft to achieve the effect of reducing the friction between the two, thereby improving the smoothness of the shell's rotation relative to the backrest of the child safety seat.

[0024] In some embodiments, the connecting shaft includes a rotating portion and flat portions disposed at either end of the rotating portion. The rotating portion has a circular cross-section, while the flat portions are flat and have a radial length greater than the diameter of the rotating portion. The two flat portions are used to securely connect to the backrest of the child safety seat. The housing has corresponding connecting holes formed on its underside. The connecting holes have arc-shaped cross-sections corresponding to the rotating portions, and the sidewalls of the connecting holes protrude outward to form elongated grooves corresponding to the flat portions. Furthermore, each flat portion has a through-hole, and the safety belt clip device also includes fasteners that pass through the through-holes to securely connect the connecting shaft to the backrest of the child safety seat.

[0025] Based on the above embodiment, by designing the two ends of the connecting shaft to be flat, the design of the flat portion increases the contact area between the connecting shaft and the backrest of the child safety seat when the two are in contact, thereby enhancing the connection stability between the connecting shaft and the backrest of the child safety seat. The side walls of the connecting hole protrude outward to form a long groove corresponding to the flat portion for the flat portion to pass through, and the fastener passes through the through-hole of the flat portion to fix the connecting shaft and the backrest of the child safety seat, thereby improving the connection stability between the shell and the backrest of the child safety seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic structural diagram of a child safety seat in one embodiment of the present application;

[0028] Figure 2 This is a schematic structural diagram of an embodiment of the present application in which the clamp body is pivoted open relative to the backrest of the child safety seat;

[0029] Figure 3 This is a schematic diagram of the exploded structure of a child safety seat in one embodiment of the present application;

[0030] Figure 4 A partial cross-sectional view of a clamp body in one embodiment of the present application;

[0031] Figure 5 This is a schematic diagram of the exploded structure of the clamp body in one embodiment of the present application;

[0032] Figure 6 This is a schematic structural diagram of the clamp body in one embodiment of the present application;

[0033] Figure 7 This is a partial cross-sectional view of an embodiment of the present application after the connecting shaft is plugged into the mounting hole;

[0034] Figure 8 This is a partial cross-sectional view of another embodiment of the present application after the connecting shaft is plugged into the mounting hole;

[0035] Figure 9 This is a partial cross-sectional view of another embodiment of the present application after the connecting shaft is plugged into the mounting hole;

[0036] Figure 10 This is a partial cross-sectional view of another embodiment of the present application after the connecting shaft is plugged into the mounting hole;

[0037] Figure 11 This is a schematic structural diagram of a connecting shaft in one embodiment of the present application.

[0038] 1. Child safety seat; 10. Backrest; 11. Engaging member; 12. Vertical clamping groove; 13. Accommodating chamber; 20. Connecting shaft; 21. Rotating portion; 211. Arc line; 22. Flat portion; 221. Through hole; 30. Clamp body; 31. Shell; 311. Mounting groove; 312. Mounting hole; 3121. Arc line; 313. Guide angle; 314. Clamping rib; 315. Connecting hole; 316. Long groove; 32. Hooking assembly; 321. Hooking member; 3211. Hooking portion; 3212. Connecting portion; 322. Operating member; 3221. Operating portion; 3222. Abutting portion; 3223. Limiting portion; 3224. Accommodating groove; 33. Elastic member; 331. First torsion spring; 332. Second torsion spring. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0040] In related technologies, with the popularization of cars, child safety seats are widely favored by consumers. Child safety seats can minimize the injuries suffered by children in the event of emergency braking or accidental collision of the car. Therefore, how to effectively improve the stability of child safety seats placed on car seats has become an urgent problem to be solved.

[0041] To solve the above technical problems, please refer to Figures 1-11 As shown, the present application proposes a safety belt clip for a child safety seat that is both safe and convenient. By clamping the car seat belt, the child safety seat 1 can be stably placed on the car seat to ensure the safety of the child.

[0042] The safety belt clip for a child safety seat provided in this application, which combines safety and convenience, is suitable for being arranged on the inner side of the backrest 10 to clamp the car seat belt. It can be coordinated with connection devices such as ISOFIX to further strengthen the connection strength between the child safety seat 1 and the car seat and improve the connection reliability.

[0043] The safety belt clip for a child safety seat provided by the present application, which is both safe and convenient, includes a connecting shaft 20, a locking member 11 and a clip body 30. The connecting shaft 20 is fixedly connected to the inner side of the backrest 10 in a transverse direction. The locking member 11 is fixedly connected to the inner side of the backrest 10 in a transverse direction and is located above the connecting shaft 20. The clip body 30 includes a shell 31, a hook assembly 32 and an elastic member 33. At least part of the outer periphery of the shell 31 is provided with a chamfer. The lower side of the shell 31 is sleeved on the connecting shaft 20 and is wrapped around the connecting shaft 20. 0 rotates relative to the backrest 10. The lower side of the housing 31 has a mounting groove 311 that runs through the front and rear sides of the housing 31. At least a portion of the hook assembly 32 is located in the mounting groove 311 and is rotatably connected to the housing 31. The elastic member 33 drives the hook assembly 32 to have a constant tendency to rotate toward the engaging member 11. When the housing 31 rotates until the hook assembly 32 approaches the engaging member 11, the hook assembly 32 is driven by the elastic member 33 to engage the engaging member 11, thereby clamping the vehicle seat belt between the housing 31 and the backrest 10.

[0044] Based on the safety belt clip for a child safety seat that combines safety and convenience in the embodiment of the present application, the shell 31 is connected to the backrest 10 via the connecting shaft 20 and can rotate relative to the backrest 10. When the hook component 32 is disengaged from the engaging part 11 and the shell 31 is rotated in the direction away from the backrest 10, the user can pass the car safety belt between the shell 31 and the backrest 10. Then, the user rotates the shell 31 toward the backrest 10 until the hook component 32 is close to the engaging part 11, and the hook component 32 is driven by the elastic part 33 to engage the engaging part 11, thereby achieving relative fixation of the position between the shell 31 and the backrest 10, so as to clamp the car safety belt between the shell 31 and the child safety seat 1, and then the child safety seat 1 is stably placed on the car seat by clamping the car safety belt with the seat belt clip.

[0045] The following combination Figures 1-11 This article explains the detailed structure of child safety seat belt clips, which combine safety and convenience.

[0046] like Figure 1 and Figure 2 As shown, a receiving cavity 13 is provided on the inner side of the backrest 10 of the child safety seat 1. The receiving cavity 13 is used to receive the safety belt clip for the child safety seat of the present application, which combines safety and convenience. Therefore, when the safety belt clip for the child safety seat of the present application, which combines safety and convenience, is received in the receiving cavity 13 and the car belt is clamped between the inner side of the backrest 10 of the child safety seat 1 and the safety belt clip for the child safety seat of the present application, no protruding structure is formed on the inner side of the backrest 10 of the child safety seat 1, thereby improving the practicality of the safety belt clip for the child safety seat of the present application, which combines safety and convenience.

[0047] like Figure 1-Figure 2 As shown, the safety belt clip for a child safety seat of the present invention, which is both safe and convenient, includes a connecting shaft 20 , a locking member 11 and a clip body 30 .

[0048] like Figure 1 and Figure 2 As shown, the connecting shaft 20 serves as the intermediate connecting structure for connecting the clip body 30 and the backrest 10 in the child safety seat safety belt clip, which combines safety and convenience. The connecting shaft 20 is laterally fixedly connected to the inner side of the backrest 10 and located below the accommodating cavity 13. The connecting shaft 20 and the backrest 10 are securely fixed and connected by riveting, bolting, welding, or other methods to ensure the strength of the connection between the connecting shaft 20 and the backrest 10.

[0049] like Figure 1-Figure 3 As shown, the engaging member 11, a component of the safety and convenience child safety seat belt clip, is used to engage with the clip body 30. The engaging member 11 is laterally fixedly connected to the inner side of the backrest 10 and located above the connecting shaft 20. Specifically, the engaging member 11 can be a connecting rod fixedly connected to the backrest 10, located above the accommodating cavity. The engaging member 11 is securely connected to the backrest 10 through riveting, bolting, welding, or other methods to ensure the strength of the connection between the engaging member 11 and the backrest 10.

[0050] like Figure 4-Figure 5 As shown, the clip body 30 is used as a component of the safety and convenience child safety seat seat belt clip for securing the vehicle seat belt. Specifically, the child safety seat 1 is connected to the vehicle seat via a connection device such as ISOFIX. The clip body 30 clamps the vehicle seat belt, further enhancing the relative strength of the connection between the child safety seat 1 and the vehicle seat. Of course, if the vehicle seat itself does not have an ISOFIX connection device, the safety and convenience child safety seat seat belt clip of this application can be used alone to achieve a reliable connection between the child safety seat 1 and the vehicle seat.

[0051] like Figure 4-Figure 6 As shown, the clamp body 30 includes a housing 31, a hook assembly 32, and an elastic member 33. The housing 31 is used to support the hook assembly 32. At least a portion of the outer periphery of the housing 31 is provided with a chamfer 313. The chamfer 313 can be integrally formed on the outer periphery of the housing 31 by injection molding, or can be formed on the outer periphery of the housing 31 by cutting, grinding, or other processes.

[0052] The lower side of the housing 31 is sleeved on the connecting shaft 20 and rotates relative to the backrest 10 around the connecting shaft 20 , that is, the housing 31 is rotatably connected to the backrest 10 via the connecting shaft 20 .

[0053] The upper side of the shell 31 has a mounting groove 311 running through the front and rear sides of the shell 31. Specifically, the shell 31 has a first surface facing the passenger and a second surface facing the inner side of the backrest, and the mounting groove 311 extends from the first surface to the inside of the shell 31 to the second surface.

[0054] The hook assembly 32 is a component in the clamp body 30 for engaging with the engaging member 11 . The specific structure of the hook assembly 32 will be described in detail below.

[0055] At least a portion of the hook assembly 32 is located within the mounting groove 311 and is rotatably connected to the housing 31. For example, the hook assembly 32 can be rotatably connected to the housing 31 via another connecting shaft. It should be noted that the rotation direction of the hook assembly 32 relative to the housing 31 and the rotation direction of the housing 31 relative to the backrest 10 can be the same as or different from each other.

[0056] The elastic member 33 is disposed between the hook assembly 32 and the housing 31. The elastic member 33 drives the hook assembly 32 to constantly rotate in the direction of engaging the engaging member 11. When the housing 31 rotates until the hook assembly 32 approaches the engaging member 11, the hook assembly 32, driven by the elastic member 33, engages the engaging member 11, thereby clamping the vehicle seat belt between the housing 31 and the backrest 10. In other words, during the rotation of the hook assembly 32 relative to the housing 31, the elastic member 33 will produce elastic deformation. The elastic potential energy corresponding to this elastic deformation can be converted into kinetic energy of the hook assembly 32 to drive the hook assembly 32 to engage with the engaging member 11, thereby clamping the vehicle seat belt between the housing 31 and the backrest 10.

[0057] It should be noted that during the rotation of the hook component 32, the elastic member 33 is in a compressed or stretched state, that is, during the rotation of the hook component 32 relative to the shell 31, the elastic member 33 may be in a compressed state, at which time the elastic member 33 produces a compression deformation, and the elastic potential energy corresponding to the compression deformation can be converted into kinetic energy to drive the hook component 32, so that the hook component 32 can rotate relative to the shell 31 to reset; of course, during the rotation of the hook component 32 relative to the shell 31, the elastic member 33 may also be in a stretched state in which the length is stretched, and at this time the elastic member 33 produces a tensile deformation, and the elastic potential energy corresponding to the tensile deformation can be converted into kinetic energy to drive the hook component 32, so that the hook component 32 can rotate relative to the shell 31 to reset.

[0058] like Figure 1-Figure 2As shown, when the hook assembly 32 is engaged with the engaging member 11, an external force presses the hook assembly 32, causing the hook assembly 32 to rotate relative to the housing 31 under the action of the force until it disengages from the engaging member 11. After the hook assembly 32 disengages from the engaging member 11, the housing 31 can rotate about the connecting axis 20 away from the backrest 10, thereby pivoting the clamp body 30 relative to the backrest 10. The user places the car seat belt between the clamp body 30 and the backrest 10, and then applies a force to the housing 31, driving the housing 31 to rotate about the connecting axis 20 toward the backrest 10 until the hook assembly 32 engages the engaging member 11 under the drive of the elastic member 33, thereby pivoting the clamp body 30 relative to the backrest 10 and clamping the car seat belt between the housing 31 and the backrest 10.

[0059] The cam 322 is configured to move the latch 321 in a direction opposite to the latch 11 so as to move the latch 321 out of the way and out of the way of the fork 32. The cam 322 is configured to move the latch 321 in a direction opposite to the latch 11 so as to move the latch 321 out of the way and out of the way of the fork 32. In this design, the user uses the operating member 322 and applies external force to the operating member 322, so that the entire operating member 322 rotates relative to the shell 31 around its hinge point with the shell 31, and the operating member 322 rotates until it abuts against the hook member 321, so that the hook member 321 is driven by the operating member 322 to rotate relative to the shell 31 around its hinge point with the shell 31 in the direction of resisting the elastic force of the elastic member 33 until it disengages from the locking member 11, so that the user can remove the car seat belt between the shell 31 and the backrest 10.

[0060] It should be noted that when the elastic member 33 is connected to the hook member 321 alone, the elastic member 33 will produce elastic deformation during the rotation of the hook member 321 relative to the shell 31. The elastic potential energy corresponding to the elastic deformation drives the hook member 321, so that the hook member 321 can rotate in the opposite direction relative to the shell 31 to reset. When the hook member 321 rotates in the opposite direction, the hook member 321 abuts against the operating member 322, so the operating member 322 can also rotate in the opposite direction relative to the shell 31 to reset under the action of the hook member 321. When the elastic member 33 is connected to the operating member 322 alone, the elastic member 33 will be elastically deformed during the rotation of the operating member 322 relative to the housing 31. The elastic potential energy corresponding to this elastic deformation can be converted into kinetic energy of the operating member 322, allowing the operating member 322 to rotate in the opposite direction relative to the housing 31 until it is restored. During the reverse rotation of the operating member 322, the operating member 322 needs to abut against the hook member 321. Therefore, the hook member 321 can also rotate in the opposite direction relative to the housing 31 until it is restored under the action of the operating member 322. When the elastic member 33 is connected to both the hook member 321 and the operating member 322, the elastic member 33 will be elastically deformed during the rotation of the hook member 321 relative to the housing 31. The elastic potential energy corresponding to this elastic deformation can be converted into kinetic energy of the hook member 321, allowing the hook member 321 to rotate in the opposite direction relative to the housing 31 until it is restored. Similarly, during the rotation of the operating member 322 relative to the shell 31, the elastic member 33 will produce elastic deformation, and the elastic potential energy corresponding to the elastic deformation can be converted into kinetic energy of the operating member 322, so that the operating member 322 can rotate in the opposite direction relative to the shell 31 to reset, and the operating member 322 and the hooking member 321 can abut against each other or be spaced apart from each other during the reverse rotation.

[0061] like Figure 4-Figure 5 As shown, considering that the elastic member 33 is a component in the clamp body 30 for realizing automatic resetting of the hooking member 321 and / or the operating member 322 after the hooking assembly 32 rotates relative to the shell 31, the specific structure of the elastic member 33, the specific connection relationship between the elastic member 33 and the hooking member 321, and the specific connection relationship between the elastic member 33 and the operating member 322 can be but is not limited to the following possible implementation methods.

[0062] In some embodiments, the elastic member 33 includes a first torsion spring 331 and a second torsion spring 332. The first torsion spring 331 and the second torsion spring 332 are both located in the mounting slot 311. The first torsion spring 331 and the second torsion spring 332 both abut against the operating member 322 and the housing 31. During the rotation of the operating member 322, the elastic force of the first torsion spring 331 and the second torsion spring 332 is overcome and the hooking member 321 is driven to disengage from the engaging member 11. Specifically, the first torsion spring 331 and the second torsion spring 332 are both sleeved on the connecting shaft between the operating member 322 and the housing 31 and are respectively located at opposite ends of the connecting shaft. One end of the first torsion spring 331 abuts against the operating member 322, and the other end of the first torsion spring 331 abuts against the housing 31. One end of the second torsion spring 332 abuts against the operating member 322, and the other end of the second torsion spring 332 abuts against the housing 31. By designing the first torsion spring 331 and the second torsion spring 332, during the rotation of the operating member 322, the first torsion spring 331 generates a first elastic deformation and the second torsion spring 332 generates a second elastic deformation. The first elastic potential energy corresponding to the first elastic deformation and the second elastic potential energy corresponding to the second elastic deformation are both converted into kinetic energy of the operating member 322, thereby enhancing the driving force for the reverse rotation when the operating member 322 automatically resets.

[0063] In other embodiments, the elastic member 33 includes a first torsion spring 331 and a second torsion spring 332. The first torsion spring 331 and the second torsion spring 332 are both located in the mounting slot 311. The first torsion spring 331 and the second torsion spring 332 both abut against the hook member 321 and the housing 31. During the rotation of the operating member 322, the elastic force of the first torsion spring 331 and the second torsion spring 332 is overcome and the hook member 321 is driven to disengage from the engaging member 11. Specifically, the first torsion spring 331 and the second torsion spring 332 are both sleeved on the connecting shaft between the hook member 321 and the housing 31 and are respectively located at opposite ends of the connecting shaft. One end of the first torsion spring 331 abuts against the hook member 321, and the other end of the first torsion spring 331 abuts against the housing 31. One end of the second torsion spring 332 abuts against the hook member 321, and the other end of the second torsion spring 332 abuts against the housing 31. By designing the first torsion spring 331 and the second torsion spring 332, during the rotation of the elastic member 33, the first torsion spring 331 generates a first elastic deformation, and the second torsion spring 332 generates a second elastic deformation. The first elastic potential energy corresponding to the first elastic deformation and the second elastic potential energy corresponding to the second elastic deformation are both converted into kinetic energy of the hook member 321, thereby enhancing the driving force for the reverse rotation of the hook member 321 when it automatically resets.

[0064] In other embodiments, the elastic member 33 includes a first torsion spring 331 and a second torsion spring 332. The first torsion spring 331 is located in the mounting groove 311 and abuts the operating member 322 and the shell 31. The second torsion spring 332 is located in the mounting groove 311 and abuts the hook member 321 and the shell 31. During the rotation of the operating member 322, the elastic force of the first torsion spring 331 and the second torsion spring 332 is overcome and the hook member 321 is driven in a direction of disengagement from the engaging member 11. Specifically, the first torsion spring 331 is sleeved on the connecting shaft between the operating member 322 and the shell 31, one end of the first torsion spring 331 abuts against the operating member 322, and the other end of the first torsion spring 331 abuts against the shell 31, and the second torsion spring 332 is sleeved on the connecting shaft between the hooking member 321 and the shell 31, one end of the second torsion spring 332 abuts against the hooking member 321, and the other end of the second torsion spring 332 abuts against the shell 31, and the first torsion spring 331 and the second torsion spring 332 can be located on the same side of the shell 31 or on both sides of the shell 31. By designing the first torsion spring 331 and the second torsion spring 332, during the rotation of the elastic member 33, the first torsion spring 331 generates a first elastic deformation, and the first elastic potential energy corresponding to the first elastic deformation is converted into the kinetic energy of the operating member 322, thereby realizing the reverse rotation when the operating member 322 automatically resets. The second torsion spring 332 generates a second elastic deformation, and the second elastic potential energy corresponding to the second elastic deformation is converted into the kinetic energy of the hooking member 321, thereby realizing the reverse rotation when the hooking member 321 automatically resets.

[0065] Furthermore, if Figure 4-Figure 5 As shown, considering that the operating member 322 is not only a component in the hook assembly 32 for the user to apply external force, the operating member 322 also abuts against the hook member 321 during the rotation process to drive the hook member 321 to rotate relative to the shell 31, in order to make the operating member 322 have the corresponding function, it is further designed that the operating member 322 includes an operating portion 3221 and an abutting portion 3222, the operating portion 3221 is at least partially located in the installation groove 311, the abutting portion 3222 is located in the installation groove 311 and connected to the operating portion 3221, the abutting portion 3222 has an arc-shaped surface bent back to the hook member 321, and during the rotation of the operating member 322, the abutting portion 3222 abuts against the hook member 321 and drives the hook member 321 to rotate in the direction of disengaging from the engaging member 11.

[0066] Among them, the operating part 3221 is a component in the operating member 322 for the user to apply external force. The operating part 3221 can be a sheet-like, plate-like or block-like structure. The specific shape of the operating part 3221 is not limited here. In order to save materials, the operating part 3221 can also reasonably adopt a hollow design.

[0067] The abutment portion 3222 is a component in the operating member 322 used to abut against the hook member 321. The abutment portion 3222 can be in a sheet-like, plate-like or block-like structure. The specific shape of the abutment portion 3222 is not limited here. In order to save materials, the abutment portion 3222 can also reasonably adopt a hollow design.

[0068] The abutment portion 3222 and the operating portion 3221 can be a split structure or an integrated structure. When the abutment portion 3222 and the operating portion 3221 are a split structure, the abutment portion 3222 can be bonded to the operating portion 3221 by glue. When the abutment portion 3222 and the operating portion 3221 are an integrated structure, the abutment portion 3222 can be integrally formed on the operating portion 3221 by injection molding.

[0069] The abutment portion 3222 has an arc-shaped surface that bends away from the hooking member 321. The surface of the abutment portion 3222 close to the hooking member 321 can be concave inward to form the above-mentioned arc-shaped surface (that is, the center of the circle corresponding to the arc-shaped surface falls on the side where the hooking member 321 is located). The surface of the abutment portion 3222 close to the hooking member 321 can also be convex outward to form the above-mentioned arc-shaped surface (that is, the center of the circle corresponding to the arc-shaped surface falls on the side where the abutment portion 3222 is located).

[0070] During the rotation of the operating member 322, the contact portion 3222 and the hooking member 321 may be in point contact, line contact, or surface contact. The size of the specific contact surface between the contact portion 3222 and the hooking member 321 depends on the specific structures of the contact portion 3222 and the hooking member 321.

[0071] Furthermore, if Figure 4-Figure 5 As shown, to prevent the hooking member 321 from accidentally disengaging from the engaging member 11, the operating member 322 is further designed to include a limiting portion 3223. The limiting portion 3223 is disposed on the rotational path of the hooking member 321 in disengaging from the engaging member 11, thereby limiting the rotation of the hooking member 321 in the direction of disengaging from the engaging member 11. Specifically, the limiting portion 3223 is connected to the operating portion 3221 and is located on the side where the abutting portion 3222 is located. The limiting portion 3223, the operating portion 3221, and the abutting portion 3222 together form a receiving groove 3224. The hooking member 321 is partially located within the receiving groove 3224, thereby limiting the hooking member 321 from disengaging from the engaging member 11 in the engaged position. The limiting portion 3223 can be in the form of a sheet, plate, or block. The specific shape of the limiting portion 3223 is not limited herein. The limiting portion 3223 and the portion of the hooking member 321 located within the receiving groove 3224 can abut against each other or be spaced apart when in the engaged position. With this design, the limiting portion 3223 can restrict the hooking member 321 from rotating relative to the housing 31 until it disengages from the engaging member 11, thereby enhancing the connection stability between the hooking member 321 and the engaging member 11.

[0072] like Figure 4-Figure 5 As shown, considering that the hooking member 321 is a component of the hook assembly 32 for engaging with the engaging member 11, in order to enhance the connection stability between the hooking member 321 and the engaging member 11, the hooking member 321 is further designed to include a connecting portion 3212 and two hooking portions 3211. The two hooking portions 3211 are sheet-like structures and are used to engage with the engaging member 11. The connecting portion 3212 is located between the two hooking portions 3211 and is connected to the two hooking portions 3211. The operating member 322 can rotate relative to the housing 31 until it abuts the connecting portion 3212, and one of the hooking portions 3211 and the connecting portion 3212 is rotatably connected to the housing 31. Specifically, the two hooking portions 3211 have a "hook-like" structure, and the connecting portion 3212 has a "concave-like" structure. The two hooking portions 3211 are integrally formed at both ends of the connecting portion 3212 by injection molding. In this design, the connection stability of the shell 31 when the hook holding part 321 and the locking part 11 are engaged is enhanced through the design of the two hook holding parts 3211; through the design of the connecting part 3212, the connecting part 3212 is used to connect the two hook holding parts 3211 on the one hand to achieve synchronous rotation of the two hook holding parts 3211 relative to the shell 31, and the connecting part 3212 is used to achieve effective abutment with the operating part 322 on the other hand, so that the hook holding part 3211 can rotate relative to the shell 31.

[0073] like Figure 2 and Figure 6 As shown, to enhance the stability of the car seat belt clamped between the housing 31 and the backrest 10, a further design is provided, wherein a clamping rib 314 is vertically protruded on the side of the housing 31 facing the backrest 10. The clamping rib 314 corresponds to the vertical clamping groove 12 provided in the backrest 10. When the housing 31 is rotated until the hook assembly 32 engages the engaging member 11, the clamping rib 314 is placed in the vertical clamping groove 12 to clamp the car seat belt. In this design, the clamping rib 314 and the vertical clamping groove 12 are designed to clamp the car seat belt. The clamping rib 314 and the vertical clamping groove 12 limit the car seat belt and also increase the contact area between the car seat belt and the housing 31, thereby enhancing the stability of the car seat belt clamped between the housing 31 and the backrest 10.

[0074] like Figure 7-10As shown, considering that the clamp body 30 realizes a rotational connection with the backrest 10 via the connecting shaft 20, it can be understood that during the rotation of the clamp body 30 relative to the backrest 10, there is friction between the shell 31 and the connecting shaft 20, and the magnitude of the friction determines the smoothness of the rotation of the clamp body 30 relative to the backrest 10 to a certain extent. In order to reduce the friction between the shell 31 and the connecting shaft 20 to improve the smoothness of the rotation of the clamp body 30 relative to the backrest 10, it is further designed that the lower side of the shell 31 has a mounting hole 312 for the connecting shaft 20 to pass through. In a plane perpendicular to the axis of the connecting shaft 20, the outer wall surface of the connecting shaft 20 partially abuts against the hole wall surface of the mounting hole 312. That is to say, the friction between the shell 31 and the connecting shaft 20 is reduced by reducing the contact area between the hole wall surface of the mounting hole 312 and the outer wall surface of the connecting shaft 20.

[0075] Furthermore, if Figure 7-Figure 8 As shown, it can be understood that the connecting shaft 20 is inserted into the mounting hole 312 of the shell 31, and the outer wall surface of the connecting shaft 20 and the hole wall surface of the mounting hole 312 can be in point contact, line contact, or surface contact.

[0076] When the outer wall surface of the connecting shaft 20 and the hole wall surface of the mounting hole 312 are in point contact or line contact, the specific cross-sectional shapes of the connecting shaft 20 and the specific cross-sectional shapes of the mounting hole 312 can be, but are not limited to, the following possible implementation methods.

[0077] like Figure 7 As shown, in some embodiments, in a plane perpendicular to the axis of the connecting shaft 20, the hole cross-section of the mounting hole 312 is circular, the cross-section of the connecting shaft 20 is polygonal, and the outer wall surface of the connecting shaft 20 is tangent to the hole wall surface of the mounting hole 312 (the polygon is inscribed in the circle).

[0078] like Figure 8 As shown, in other embodiments, in a plane perpendicular to the axis of the connecting shaft 20, the cross-section of the connecting shaft 20 is circular, the hole cross-section of the mounting hole 312 is polygonal, and the outer wall surface of the connecting shaft 20 is tangent to the hole wall surface of the mounting hole 312 (the polygon is tangent to the circle).

[0079] It is understood that the polygon can be formed solely by straight segments, solely by curved segments, or by a combination of straight and curved segments. In the above case, one of the cross-section of the mounting hole 312 and the cross-section of the connecting shaft 20 is "specially shaped." For example, the cross-section of the mounting hole 312 can also be triangular, rectangular, elliptical, or kidney-shaped, or the cross-section of the connecting shaft 20 can also be triangular, rectangular, elliptical, or kidney-shaped.

[0080] like Figure 9-10 As shown, when the outer wall surface of the connecting shaft 20 is in surface contact with the hole wall surface of the mounting hole 312, the specific cross-sectional shape of the connecting shaft 20 and the specific cross-sectional shape of the mounting hole 312 can be, but are not limited to, the following possible implementation methods.

[0081] like Figure 9 As shown, in some embodiments, in a plane perpendicular to the axis of the connecting shaft 20, the hole cross-section of the mounting hole 312 is circular, and the cross-section of the connecting shaft 20 includes at least two relatively arranged arc lines 211, and the curvature radius corresponding to each arc line 211 is the same as the curvature radius of the circle.

[0082] like Figure 10 As shown, in other embodiments, in a plane perpendicular to the axis of the connecting shaft 20, the cross-section of the connecting shaft 20 is circular, and the hole cross-section of the mounting hole 312 includes at least two relatively arranged arc lines 3121, and the curvature radius corresponding to each arc line 3121 is the same as the curvature radius of the circle.

[0083] It can be understood that the shell 31 is penetrated by the connecting shaft 20 and can rotate relative to the backrest 10. In order to achieve surface contact between the outer wall surface of the connecting shaft 20 and the hole wall surface of the mounting hole 312, the outer wall surface of the connecting shaft 20 must include at least two oppositely arranged arc-shaped outer wall surfaces, and the corresponding hole wall surface of the mounting hole 312 must include at least two oppositely arranged arc-shaped hole wall surfaces, and after the connecting shaft 20 is inserted into the mounting hole 312, the arc-shaped hole wall surface is completely fitted with the arc-shaped outer wall surface.

[0084] like Figure 4 、 Figure 5 and Figure 11As shown, considering that the connecting shaft 20 serves as the intermediate connecting structure between the clamp body 30 and the backrest of the child safety seat, the detachable connection between the connecting shaft 20 and the backrest 10 realizes the detachable connection between the clamp body 30 and the backrest 10. In order to enhance the connection stability between the connecting shaft 20 and the backrest 10, the connection stability between the clamp and the backrest 10 is enhanced. Therefore, it is further designed that the connecting shaft 20 includes a rotating portion 21 and flat portions 22 provided at both ends of the rotating portion 21, that is, the two flat portions 22 are respectively located at both ends of the rotating portion 21 along the axial direction parallel to the connecting shaft 20; the cross section of the rotating portion 21 is circular, and the flat portion 22 is provided at both ends of the rotating portion 21. The portion 22 is flat and has a radial length greater than the diameter of the rotating portion. The two flat portions 22 are used to securely connect to the backrest 10 of the child safety seat 1. A corresponding connecting hole 315 is defined on the lower side of the housing 31. The cross-section of the connecting hole 315 is arc-shaped, corresponding to the rotating portion 21. The sidewall of the connecting hole 315 protrudes outward to form a long slot 316 corresponding to the flat portion 22. The connecting shaft 20 passes through the connecting hole 315. Each flat portion 22 is defined by a through-hole 221. The safety belt clip also includes a fastener that passes through the through-hole 221 to securely connect the connecting shaft 20 to the backrest 10. The two flat portions 22 can be integrally formed at both ends of the rotating portion 21 by injection molding. The fastener can be a screw or a rivet. When the fastener is a screw, the screw passes through the through-hole 221 of the flat portion 22 and is threadedly connected to the backrest 10. When the fastener is a rivet, the rivet passes through the through-hole 221 of the flat portion 22 and is riveted to the backrest 10. In this design, by designing the two ends of the connecting shaft 20 to be flat, the design of the flat portion 22 increases the contact area between the connecting shaft 20 and the backrest 10 when the two are in contact, thereby enhancing the connection stability between the connecting shaft 20 and the backrest 10. The fastener passes through the through hole 221 of the flat portion 22 to fix the connecting shaft 20 and the backrest 10, thereby improving the connection stability between the shell 31 and the backrest 10.

[0085] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0086] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A safety belt clip for a child safety seat that combines safety and convenience, suitable for being arranged on the inner side of the backrest of a child safety seat to clamp the car seat belt, thereby achieving connection between the child safety seat and the car seat, characterized in that: The safety belt clip for a child safety seat having both safety and convenience comprises: a connecting shaft fixedly connected transversely to the inner side of the backrest of the child safety seat; a snap-fitting member, fixedly connected transversely to the inner side of the backrest of the child safety seat and located above the connecting shaft; The clamp body includes a shell, a hook assembly and an elastic member, at least a portion of the outer periphery of the shell is provided with a chamfer, the lower side of the shell is sleeved on the connecting shaft and rotates around the connecting shaft relative to the backrest of the child safety seat, the upper side of the shell has a mounting groove that runs through the front and rear sides of the shell; at least a portion of the hook assembly is located in the mounting groove and is rotatably connected to the shell, the elastic member drives the hook assembly to always have a movement tendency to rotate in the direction of engaging the engaging member; when the shell rotates until the hook assembly approaches the engaging member, the hook assembly is driven by the elastic member to engage the engaging member, so as to clamp the car seat belt between the shell and the backrest of the child safety seat; The lower side of the housing has a mounting hole for the connecting shaft to pass through, and in a plane perpendicular to the axis of the connecting shaft, the outer wall surface of the connecting shaft partially abuts against the hole wall surface of the mounting hole; The hook assembly includes a hook member and an operating member, the hook member is located in the installation slot and is rotatably connected to the housing, the hook member is used to be engaged with the engaging member, and the hook member has a tendency to rotate in the direction of engaging with the engaging member under the drive of the elastic member; the operating member is at least partially located in the installation slot and is rotatably connected to the housing, the operating member can be rotated relative to the housing until it abuts against the hook member, thereby driving the hook member to rotate relative to the housing in the direction of resisting the elastic force of the elastic member, so that the hook member is disengaged from the engaging member; The operating member further includes a limiting portion, which is provided on a rotation path of the hooking member when the hooking member is disengaged from the engagement with the engaging member, so as to limit the hooking member from rotating in a direction of disengaging from the engagement with the engaging member.

2. The safety belt clip for a child safety seat having both safety and convenience as claimed in claim 1, characterized in that: The elastic member includes a first torsion spring and a second torsion spring, the first torsion spring is located in the installation slot and abuts the operating member and the shell; the second torsion spring is located in the installation slot and abuts the hook member and the shell; during the rotation of the operating member, the elastic force of the first torsion spring and the second torsion spring is overcome and the hook member is driven to rotate in a direction of disengaging from the engaging member.

3. The safety belt clip for a child safety seat having both safety and convenience as claimed in claim 1, characterized in that: The operating member includes an operating portion and an abutment portion, wherein the operating portion is at least partially located in the mounting groove; the abutment portion is located in the mounting groove and connected to the operating portion, and the abutment portion has an arc-shaped surface bent away from the hooking member. During the rotation of the operating member, the abutment portion abuts against the hooking member and drives the hooking member to rotate in a direction of disengagement from the engaging member.

4. The safety belt clip for a child safety seat having both safety and convenience as claimed in claim 1, characterized in that: The hooking member includes a hooking portion and a connecting portion; there are two hooking portions, each of which is a sheet-like structure and is used to engage and connect with the engaging member; the connecting portion is located between the two hooking portions and is connected to the two hooking portions, and the operating member can be rotated relative to the shell until it abuts against the connecting portion; one of the hooking portion and the connecting portion is rotatably connected to the shell.

5. The safety belt clip for a child safety seat having both safety and convenience as claimed in claim 1, characterized in that: The shell is provided with a clamping rib protruding vertically on one side of the backrest of the child safety seat, and the clamping rib corresponds to the vertical clamping groove provided on the backrest of the child safety seat. When the shell is rotated until the hook assembly is engaged with the engaging part, the clamping rib is placed in the vertical clamping groove to clamp the car seat belt.

6. The safety belt clip for a child safety seat having both safety and convenience as claimed in claim 1, characterized in that: In a plane perpendicular to the axis of the connecting shaft, the cross section of the mounting hole is circular, the cross section of the connecting shaft is polygonal, and the outer wall surface of the connecting shaft is tangent to the wall surface of the mounting hole; or In a plane perpendicular to the axis of the connecting shaft, the cross section of the connecting shaft is circular, the cross section of the mounting hole is polygonal, and the outer wall surface of the connecting shaft is tangent to the hole wall surface of the mounting hole.

7. The safety belt clip for a child safety seat having both safety and convenience as claimed in claim 1, characterized in that: In a plane perpendicular to the axis of the connecting shaft, the cross-section of the mounting hole is circular, the cross-section of the connecting shaft includes at least two oppositely arranged circular arcs, and the radius of curvature corresponding to each of the circular arcs is the same as the radius of curvature of the circle; or In a plane perpendicular to the axis of the connecting shaft, the cross section of the connecting shaft is circular, the hole cross section of the mounting hole includes at least two oppositely arranged arc lines, and the curvature radius corresponding to each arc line is the same as the curvature radius of the circle.

8. The safety belt clip for a child safety seat having both safety and convenience as claimed in claim 1, characterized in that: The connecting shaft includes a rotating part and flat parts arranged at both ends of the rotating part, the cross-section of the rotating part is circular, the flat part is flat and the radial length of the flat part is greater than the diameter of the rotating part, and the two flat parts are used to fix the backrest of the child safety seat; a connecting hole is correspondingly opened on the lower side of the shell, the cross-section of the connecting hole is an arc shape corresponding to the rotating part, and the side wall of the connecting hole protrudes outward to form a long groove corresponding to the flat part.

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