Rear hook connection structure and safety seat

Abstract

A rear hook connection structure and a safety seat. The rear hook connection structure comprises a first connector (1) arranged at one end of a support rod (3), and a second connector (2) arranged on a base (4), wherein the first connector (1) and the second connector (2) are respectively provided with a first positioning hole (121) and a first positioning portion (21), the first positioning hole (121) and the first positioning portion (21) being fitted in an embedded manner, and the first positioning hole (121) and the first positioning portion (21) being snap-fitted at least in the plane in which the base (4) is turned over. The safety seat is lightweight and is convenient to install, can achieve the lightweight design of a product, reduce the manufacturing difficulty and assembly difficulty of the product, and improve the assembly efficiency.

Description

Rear hook connecting structure and safety seat TECHNICAL FIELD

[0001] The present application relates to the technical field of safety seats, in particular to a rear hook connecting structure and a safety seat. BACKGROUND

[0002] The safety seat is a seat attached to a seat of a vehicle, which is a vehicle accessory device with a binding protection function. The safety seat, the child safety seat, the child vehicle safety seat, and the vehicle protection seat all refer to the safety seat, which is a seat for small children to ride and can bind the child to protect the child in the event of a car accident.

[0003] In the safety seat, in order to resist the force caused by the rebound of the safety seat after falling due to driving inertia, a rear hook structure is arranged at the rear side of the base to strengthen the structural strength of the base on this side, so as to improve the stability of the safety seat.

[0004] However, the existing safety seat has the following defects: the rear hook structure arranged in the safety seat on the market has a large volume and weight, which not only occupies space, but also increases the difficulty of carrying and the load of the vehicle due to the increase in weight. SUMMARY

[0005] An object of the present application is to provide a rear hook connecting structure and a safety seat with lightweight design.

[0006] To achieve the above object, the technical scheme adopted by the present application is as follows: a rear hook connecting structure, comprising a first connecting body arranged at one end of a supporting rod and a second connecting body arranged on a base, wherein the first connecting body and the second connecting body are respectively provided with a first positioning hole and a first positioning part, the first positioning hole and the first positioning part are adapted to be embeddedly connected, and the first positioning hole and the first positioning part are at least clamped and matched in a plane in which the base is turned over.

[0007] In some embodiments, the first connecting body and the second connecting body are respectively provided with a second positioning hole and a third positioning hole, the second positioning hole and the third positioning hole are fixedly connected and adapted to at least limit the first positioning hole and the first positioning part from coming out.

[0008] In some embodiments, the first connecting body is provided with a planar part, the second connecting body is provided with a contact platform, an upper surface of the contact platform is perpendicular to the plane in which the base is turned over, and the planar part is adapted to be connected with the upper surface of the contact platform.

[0009] In some embodiments, the first connector includes a first connecting surface, a second connecting surface and a third connecting surface, the first connecting surface, the second connecting surface and the third connecting surface are adapted to be fitted to three different surfaces of the second connector respectively, the first connecting surface is provided with the flat part, the second connecting surface is provided with the first positioning hole or the first positioning part, and the second connecting surface is provided with a second positioning hole or a third positioning hole.

[0010] In some embodiments, the second connector is provided with a positioning groove, and the third connecting surface is adapted to be fitted and embedded in the positioning groove and fixed by a fastening pin.

[0011] In some embodiments, the flat part is provided with a reinforcing rib.

[0012] In some embodiments, the first positioning part has a polygonal cross section in a plane in which the base is flipped, and the first positioning part is a cylindrical reinforcing rib, and an axial direction of the first positioning part is perpendicular to the plane in which the base is flipped.

[0013] In some embodiments, the first connector and the second connector are fitted to press and fix the support rod.

[0014] In some embodiments, the base is provided with a rotating area, the support rod is connected to a side of the first connector away from the rotating area, the first connector is provided with a limiting part near a side of the rotating area, and the limiting part extends in a circumferential direction of the rotating area.

[0015] A safety seat includes the rear hook connecting structure described above.

[0016] Compared with the prior art, the rear hook connecting structure and the safety seat have the following beneficial effects: the rear hook connecting structure and the safety seat of the present application split the wide and thick connected rear hook in the traditional safety seat into a single rear hook structure, and optimize the connecting structure between the support rod and the base, greatly improve the connecting stability between the support rod and the base on the premise of lightweight design of the rear hook, thereby obtaining the same or even higher structural strength, in addition, the production and assembly difficulty of the optimized related parts is lower, and the assembly efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS

[0017] FIG. 1 is a whole structure view according to one preferred embodiment of the present application.

[0018] FIG. 2 is an exploded structure view according to one preferred embodiment of the present application.

[0019] FIG. 3 is an enlarged view of the first connecting surface of the second connector according to one preferred embodiment of the present application.

[0020] Fig. 4 is an enlarged view of a first perspective of the first connector and the second connector being connected according to one preferred embodiment of the present application.

[0021] Fig. 5 is an enlarged view of a second perspective of the second connector according to one preferred embodiment of the present application.

[0022] Fig. 6 is an enlarged view of a second perspective of the first connector and the second connector being connected according to one preferred embodiment of the present application.

[0023] Fig. 7 is a perspective view in a right side direction of the support rod according to one preferred embodiment of the present application.

[0024] Fig. 8 is a perspective view in a left side direction of the support rod according to one preferred embodiment of the present application.

[0025] In the drawings: 1, first connector; 11, first connecting surface; 111, planar portion; 1111, reinforcing rib; 12, second connecting surface; 121, first positioning hole; 122, second positioning hole; 13, third connecting surface; 14, limiting portion; 2, second connector; 21, first positioning portion; 22, third positioning hole; 23, contact platform; 24, positioning groove; 3, support rod; 4, base; 41, rotating zone; 42, accommodating cavity; 5, fastening pin. DETAILED DESCRIPTION

[0026] Hereinafter, the present application will be further described in conjunction with specific embodiments, and it should be noted that the following described embodiments or technical features can be combined with each other in any manner to form new embodiments without conflict.

[0027] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0029] The terms "comprise" and "have" and any variations thereof in the specification and claims of this application are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or apparatus that comprises a list of steps or units is not necessarily limited to those listed steps or units but can include other steps or units not expressly listed or inherent to such process, method, product or apparatus.

[0030] The application will be further described below with reference to the drawings:

[0031] As shown in FIGS. 1-8, the present application provides a rear hook connection structure, comprising a first connecting body 1 arranged at one end of a support rod 3 and a second connecting body 2 arranged on a base 4, the first connecting body 1 and the second connecting body 2 are respectively provided with a first positioning hole 121 and a first positioning part 21, the first positioning hole 121 and the first positioning part 21 are adapted to be connected by fitting, and the first positioning hole 121 and the first positioning part 21 are at least clamped and matched in the plane in which the base 4 is overturned.

[0032] The plane in which the base 4 is overturned refers to the plane in which the base 4 will be overturned or have a tendency to be overturned due to the action force generated by the inertia of the seat on the base 4 during the driving process (especially during acceleration and braking) when the safety seat is placed in the car, and the role of the rear hook is to connect the structure in the car (such as the car seat), thereby helping to fix the base 4 and improve the stability of the base 4. In the present application, the rear hook is composed of the first connecting body 1 and the second connecting body 2, and when the first connecting body 1 and the second connecting body 2 are connected, the support rod 3 can be fixed with the base 4, and the upper end of the support rod 3 can be connected and fixed with the structure in the car.

[0033] The form of the fitting connection of the first positioning hole 121 and the first positioning part 21 can reduce the assembly difficulty of the first connecting body 1 and the second connecting body 2, and at the same time, the clamping and matching between the first positioning hole 121 and the first positioning part 21 forms a stable occlusion relationship, which improves the structural strength of the cooperation of the two to overcome the action force received in the plane in which the base 4 is overturned.

[0034] In the present application, the first positioning hole 121 is preferably arranged on the first connecting body 1, and the first positioning part 21 is preferably arranged on the second connecting body 2, which has lower production and assembly difficulty of the components.

[0035] As shown in the embodiment of FIG. 4, the first connecting body 1 and the second connecting body 2 are respectively provided with a second positioning hole 122 and a third positioning hole 22, the second positioning hole 122 and the third positioning hole 22 are fixedly connected and adapted to at least limit the first positioning hole 121 and the first positioning part 21 from coming out, so that the cooperation form between the first positioning hole 121 and the first positioning part 21 is more stable.

[0036] It can be understood that the offset deflection between the first positioning hole 121 and the first positioning part 21 will also cause the connection stability between the first connecting body 1 and the second connecting body 2 to decrease, and the second positioning hole 122 and the third positioning hole 22 are connected through the fastening pin 5, which can also limit the offset deflection between the first positioning hole 121 and the first positioning part 21.

[0037] In the embodiment shown in FIG. 4, the second positioning hole 122 and the third positioning hole 22 are matched and fixed, which is suitable for limiting the relative movement of the first connecting body 1 and the second connecting body 2 in the plane in which the base 4 is overturned, and can help to disperse the force between the first positioning hole 121 and the first positioning part 21, so as to further strengthen the connection between the first connecting body 1 and the second connecting body 2.

[0038] In some embodiments, the second positioning hole 122 and the third positioning hole 22 are connected through the nested structure, which can reduce the assembly difficulty.

[0039] In some embodiments, the second positioning hole 122 and the third positioning hole 22 are locked through the fastening pin 5, which can reduce the assembly difficulty.

[0040] In some embodiments, the fastening pin 5 uses a general fastener, which improves the universality of parts and reduces production and processing difficulty.

[0041] In this application, the second positioning hole 122 is preferably arranged on the second connecting body 1, and the third positioning hole 22 is preferably arranged on the second connecting body 2.

[0042] As shown in the embodiments of FIGS. 3-4, the first connecting body 1 is provided with a flat part 111, and the second connecting body 2 is provided with a contact platform 23, the upper surface of the contact platform 23 is perpendicular to the plane in which the base 4 is overturned, the flat part 111 is suitable for being connected with the upper surface of the contact platform 23, and the cooperation of the flat part 111 and the contact platform 23 can bear part of the force received by the support rod 3 and share the force of the first positioning part 21, thereby improving the upper limit of the load bearing of the rear hook itself and the upper limit of the load bearing between the first connecting body 1 and the second connecting body 2.

[0043] In some embodiments, holes can be arranged on the flat part 111 to connect with the contact platform 23 through the fastening pin 5, so as to improve the cooperation stability between the flat part 111 and the contact platform 23.

[0044] In some embodiments, the first connecting body 1 comprises a first connecting surface 11, a second connecting surface 12 and a third connecting surface 13, which are adapted to be respectively matched to three different surfaces of the second connecting body 2, the first connecting surface 11 is provided with a flat part 111, the second connecting surface 12 is provided with a first positioning hole 121 or a first positioning part 21, the second connecting surface 12 is provided with a second positioning hole 122 or a third positioning hole 22, the stress between the first connecting body 1 and the second connecting body 2 is balanced by the plurality of surfaces, and the rear hook can bear more and larger torsion force by dispersing the stress.

[0045] In some embodiments, the second connecting body 2 is provided with a positioning groove 24, the third connecting surface 13 is adapted to be embedded in the positioning groove 24 and connected and fixed by the fastening pin 5, which helps to balance the stress on the side of the third connecting surface 13 of the second connecting body 2 and obtain greater bearing capacity.

[0046] In some embodiments, the third connecting surface 13 can be provided with a hole position connected with the positioning groove 24 through the fastening pin 5 to improve the cooperation stability between the third connecting surface 13 and the positioning groove 24.

[0047] As shown in the embodiment of FIG. 7, the flat part 111 is provided with a reinforcing rib 1111, which can improve the structural strength of the flat part 111, improve the stress bearing capacity of the flat part 111 and reduce the probability of deformation of the flat part 111.

[0048] In some embodiments, the first positioning part 21 has a polygonal cross section in the plane in which the base 4 is flipped.

[0049] As shown in the embodiment of FIG. 4, the first positioning part 21 has a triangular cross section in the plane in which the base 4 is flipped, which occupies a small space and has a stable structure and is not easy to deform.

[0050] In some embodiments, the first positioning part 21 is a cylindrical reinforcing rib, the axial direction of the first positioning part 21 is perpendicular to the plane in which the base 4 is flipped, which improves the torsional performance of the first positioning part 21 and reduces the probability of deformation and damage of the first positioning part 21.

[0051] As shown in the embodiments of FIGS. 2, 5 and 6, the base 4 is provided with a rotating area 41, the support rod 3 is connected to the side of the first connecting body 1 away from the rotating area 41, the first connecting body 1 is provided with a limiting part 14 on the side close to the rotating area 41, the limiting part 14 extends along the circumferential direction of the rotating area 41, the limiting part 14 can cooperate with the rotating area 41 without affecting the function of the rotating area 41, and the connection strength between the first connecting body 1 and the second connecting body 2 is improved.

[0052] In some embodiments, the limiting part 14 is obtained by arc bending the edge of the first connecting body 1.

[0053] As shown in the embodiment of FIG. 8, the second connecting surface 12 and the third connecting surface 13 are respectively arranged on the left and right sides of the first connecting surface 11, and the limiting part 14 and the support rod 3 are respectively arranged on the front and rear sides of the first connecting surface 11, so that the various structures of the first connecting body 1 are fully utilized for stable connection, and the lightweight design is realized while ensuring the structural strength.

[0054] As shown in the embodiment of FIGS. 3-4, the first connecting body 1 and the support rod 3 are in a detachable connection structure, and the first connecting body 1 and the second connecting body 2 cooperate to press and fix the support rod 3.

[0055] As shown in the embodiment of FIGS. 5-6, the support rod 3 preferably uses a hollow rod body to further improve the lightweight degree of the rear hook.

[0056] As shown in the embodiment of FIGS. 5-6, the support rod 3 is formed by bending a plate material, which can ensure the structural strength of the support rod 3 and improve the carrying capacity of the support rod 3.

[0057] As shown in the embodiment of FIGS. 1-2, the rear side of the base 4 is provided with a receiving cavity 42 for accommodating the support rod 3, so as to improve the structural stability between the base 4 and the support rod 3 and reduce the relative movement between the support rod 3 and the base 4 outside the overturning plane of the base 4.

[0058] The application also provides a safety seat comprising the rear hook connecting structure of any of the above embodiments.

[0059] The above describes the basic principles, main features and advantages of the application. It should be understood by those skilled in the art that the application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the application. Without departing from the spirit and scope of the application, various changes and improvements can be made to the application, and these changes and improvements all fall within the scope of the claimed application. The scope of protection claimed by the application is defined by the appended claims and their equivalents.

Claims

1. A rear hook connection structure, characterized by: The first connecting body and the second connecting body are respectively provided with a first positioning hole and a first positioning part, the first positioning hole and the first positioning part are adapted to be embedded and connected, and the first positioning hole and the first positioning part are at least clamped and matched in the plane in which the base is overturned.

2. A rear hook connection structure as claimed in claim 1, characterized in that: The first connecting body and the second connecting body are respectively provided with a second positioning hole and a third positioning hole, the second positioning hole and the third positioning hole are fixedly connected and adapted to at least limit the first positioning hole and the first positioning part from being disengaged.

3. A rear hook connection structure as claimed in claim 1, characterized in that: The first connecting body is provided with a plane part, the second connecting body is provided with a contact platform, the upper surface of the contact platform is perpendicular to the plane in which the base is overturned, and the plane part is adapted to be connected with the upper surface of the contact platform.

4. A rear hook attachment structure as claimed in claim 3, characterized in that: The first connecting body includes a first connecting surface, a second connecting surface and a third connecting surface, the first connecting surface, the second connecting surface and the third connecting surface are adapted to be respectively matched to three different surfaces of the second connecting body, the plane part is arranged on the first connecting surface, the first positioning hole or the first positioning part is arranged on the second connecting surface, and the second positioning hole or the third positioning hole is arranged on the second connecting surface.

5. A rear hook attachment structure as claimed in claim 4, characterized in that: The second connecting body is provided with a positioning groove, the third connecting surface is adapted to be matched and embedded in the positioning groove, and is fixedly connected through a fastening pin.

6. A rear hook connection structure as claimed in claim 4, characterized in that: The plane part is provided with a reinforcing convex rib.

7. A rear hook connection structure as claimed in claim 1, characterized in that: The first positioning part is polygonal in cross section in the plane in which the base is overturned; the first positioning part is a cylindrical reinforcing rib, and the axial direction of the first positioning part is perpendicular to the plane in which the base is overturned.

8. A rear hook connection structure as claimed in claim 1, characterized in that: The first connecting body and the second connecting body are adapted to be press-fitted and connected to the support rod.

9. A rear hook connection structure as claimed in claim 1, characterized in that: The base is provided with a rotating area, the support rod is connected to the side of the first connecting body away from the rotating area, the first connecting body is provided with a limiting part on the side close to the rotating area, and the limiting part extends along the circumferential direction of the rotating area.

10. A safety seat, characterized by: The rear hook connecting structure includes any one of claims 1 to 9.

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