Child carrier base with lightweight structural design and child safety seat

Abstract

The utility model discloses a child carrier base with a lightweight structural design and a child safety seat, which are characterized in that a shell is made of a non-metal material, a reinforcing connecting pipe is of a hollow structure, a supporting seat is of a sheet structure, and a clamping mechanism and a clamping linkage mechanism are integrated on the corresponding supporting seat to form an independent structure. According to the child carrier base and the child safety seat thereof, the structural concise design is achieved, so that the overall weight is effectively reduced, carrying is convenient, meanwhile, the manufacturing cost can be effectively reduced, and the market competitiveness of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of children's products, in particular to a base of a children's carrier and a children's safety seat with a lightweight structure design.

Background Art

[0002] For some existing bases of children's safety seats, due to their relatively complex structural design, there are problems of heavy weight, resulting in inconvenient carrying and handling, and at the same time, there are also problems of high manufacturing cost and unfavorable market competition. The specific manifestations are as follows:

[0003] 1. For the existing bases of children's safety seats, to ensure the connection and support strength, each support structure is usually designed as a bracket structure formed by multiple sheet bodies or pipe fittings.

[0004] 2. In the existing bases of children's safety seats, the bracket structure is connected to the base reinforcement pipe through a bracket bottom plate, and the base reinforcement pipe is designed as a flat pipe, that is, the height of the cross-section of the base reinforcement pipe is less than its width. Therefore, to meet the connection and bending strength, the size of the flat pipe used is increased.

[0005] 3. For the existing bases of children's safety seats, to meet the requirement of rotational commutation, there are a turntable and a turntable cover. The turntable is heavy, and it is generally made of materials with high density or other thicker and stronger materials. At the same time, for the base of a children's safety seat with the function of rotational commutation, to avoid the exposure of the turntable, a turntable cover for covering up the ugliness is also required.

[0006] The above are the main reasons for the heavy weight and high manufacturing cost caused by the complex structure of the existing bases of children's safety seats.

[0007] Therefore, the present utility model is studied and proposed in view of the above problems.

Content of the Utility Model

[0008] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a base of a children's carrier with a lightweight structure design. By making the shell made of non-metallic materials, the reinforcing connecting pipe have a hollow structure, the support seat have a sheet structure, and the engaging mechanism and the engaging linkage mechanism are both integrated on the corresponding support seat to form an independently arranged structure, a simple structural design is realized, thereby effectively reducing the overall weight and facilitating carrying; at the same time, the manufacturing cost can also be effectively reduced, and the market competitiveness of the product can be improved.

[0009] The utility model also provides a children's safety seat. By adopting the above base of the children's carrier, a simple structural design can be realized, thereby effectively reducing the overall weight and facilitating carrying; at the same time, the manufacturing cost can also be effectively reduced, and the market competitiveness of the product can be improved.

[0010] To solve the above technical problems, a base of a children's carrier with a lightweight structure design of the present utility model includes:

[0011] A housing 1, the housing 1 is made of a non-metallic material;

[0012] Reinforcing connecting pipes 2, the reinforcing connecting pipes 2 are of a hollow structure, and the two reinforcing connecting pipes 2 are spaced apart and directly fixedly connected inside the housing 1 and are arranged to extend along the front-back direction of the base of the children's carrier;

[0013] Support seats 3, the support seats 3 are of a sheet-like structure, and each reinforcing connecting pipe 2 is provided with support seats 3 at intervals along the front-back direction. The central distance between the front and rear two support seats 3 on the same reinforcing connecting pipe 2 connected to the bottom of the children's carrier is equal to the central distance between the two support seats 3 corresponding to the connection with the reinforcing connecting pipe 2;

[0014] A clamping mechanism 4, each support seat 3 is integrally provided with a clamping mechanism 4, and the clamping mechanism 4 has a first use state and a second use state. The clamping mechanism 4 is used to clamp and lock a fixing rod 100 at the bottom of the children's carrier in the first use state, and the fixing rod 100 at the bottom of the children's carrier can be inserted and placed or removed in the second use state;

[0015] An unlocking mechanism 6, the unlocking mechanism 6 is movably arranged relative to the housing 1 to be used for correspondingly acting on the unlocking action of the clamping mechanism 4.

[0016] For the base of a children's carrier with a lightweight structure design as described above, the cross-sectional height dimension of the reinforcing connecting pipe 2 is H, and the cross-sectional width dimension of the reinforcing connecting pipe 2 is W, satisfying: H>W.

[0017] For the base of a children's carrier with a lightweight structure design as described above, each support seat 3 is an independent L-shaped sheet-like structure, including a sheet-like support part 31 and a sheet-like mounting part 32. The sheet-like mounting part 32 is in a vertical state and is integrally formed and connected to the lower end of the sheet-like support part 31. The sheet-like mounting part 32 is fixedly connected to the reinforcing connecting pipe 2, and the clamping mechanism 4 is integrally connected to the sheet-like support part 31. The central distance between the front and rear two sheet-like support parts 31 on the same reinforcing connecting pipe 2 connected to the bottom of the children's carrier is equal to the central distance between the two sheet-like mounting parts 32 corresponding to the connection with the reinforcing connecting pipe 2.

[0018] For the base of a children's carrier with a lightweight structure design as described above, the support seat 3 is made of metal, and a plurality of long strip-shaped holes 311 for weight reduction are obliquely arranged on the sheet-like support part 31.

[0019] As described above, a child carrier base with a lightweight structural design, the engaging mechanism 4 includes a guiding slot 41 provided on the upper part of the sheet-shaped supporting portion 31 for clamping the fixing rod 100, and a hook 42 pivotally connected to the sheet-shaped supporting portion 31 and configured to cooperate with the guiding slot 41 to clamp and lock the fixing rod 100. The hook 42 cooperates with the guiding slot 41 to clamp and lock the fixing rod 100 in the first use state, and the hook 42 is opened relative to the guiding slot 41 and restricted from rotating and locked in the second use state.

[0020] As described above, a child carrier base with a lightweight structural design further includes an engaging linkage mechanism 5 located between the engaging mechanism 4 and the supporting seat 3. Each supporting seat 3 is also integrally provided with an engaging linkage mechanism 5. The engaging linkage mechanism 5 is configured to release the locked state of the engaging mechanism 4 when the child carrier is connected and mated with the child carrier base, and thus enter the first use state from the second use state.

[0021] As described above, a child carrier base with a lightweight structural design further includes a safety locking mechanism 7. The safety locking mechanism 7 is configured to lock the engaging linkage mechanism 5 when the child carrier is connected and mated with the child carrier base to make the engaging mechanism 4 enter the first use state.

[0022] As described above, a child carrier base with a lightweight structural design, the engaging linkage mechanism 5 includes a triggering linkage member 51, a triggering elastic member 52, and a linkage seat 53. The triggering linkage member 51 is movably provided on the supporting seat 3 and configured to act correspondingly when being abutted by the child carrier when the child carrier is connected to the child carrier base. The triggering elastic member 52 is located between the triggering linkage member 51 and the supporting seat 3 to drive the triggering linkage member 51 to automatically reset. The engaging mechanism 4 includes a guiding slot 41 provided on the upper part of the supporting seat 3 for clamping the fixing rod 100, and a hook 42 pivotally connected to the supporting seat 3 and configured to cooperate with the guiding slot 41 to clamp and lock the fixing rod 100. The linkage seat 53 is movably located between the triggering linkage member 51 and the hook 42. A linkage seat limiting component 54 for restricting the movement of the linkage seat 53 is provided between the linkage seat 53 and the triggering linkage member 51, and the linkage seat limiting component 54 is configured to release the limitation on the linkage seat 53 when the triggering linkage member 51 is abutted by the child carrier. A hook linkage component 55 for linking the corresponding rotational movement of the hook 42 is provided between the linkage seat 53 and the hook 42. The safety locking mechanism 7 is located between the triggering linkage member 51 and the linkage seat 53.

[0023] As described above, a child carrier base with a lightweight structural design, the trigger linkage member 51 can be slidably arranged on the sheet support portion 31 up and down, and the linkage seat 53 can be slidably located between the trigger linkage member 51 and the hook 42 forward and backward; the linkage seat limiting assembly 54 includes a linkage seat limiting vertical groove 541 arranged on the trigger linkage member 51 or the linkage seat 53 and a linkage seat limiting rod 542 correspondingly arranged on the linkage seat 53 or the trigger linkage member 51 and limited by the linkage seat limiting vertical groove 541, and the linkage seat 53 or the trigger linkage member 51 is correspondingly provided. The component 51 is also provided with a linkage seat transverse groove 543 which is communicated with the linkage seat limiting vertical groove 541 and in which the linkage seat limiting rod 542 can move; the hook linkage component 55 includes a hook linkage vertical groove 551 arranged on the linkage seat 53 or the hook 42, and a hook linkage rod 552 which is correspondingly arranged on the hook 42 or the linkage seat 53 and limitedly cooperates with the hook linkage vertical groove 551; the safety locking mechanism 7 is formed by the corresponding side wall of the linkage seat transverse groove 543 which is used to limit the linkage seat limiting rod 542 to prevent the trigger linkage component 51 from sliding upward and resetting.

[0024] In the child carrier base with a lightweight structural design as described above, the hook 42 is configured to have a rotation tendency to maintain elastic return to the guide slot 41, and the locking linkage mechanism 5 is further configured so that when the child carrier is connected to the child carrier base or has not been separated from the guide slot 41, the hook 42 is in a state of maintaining the locking of the fixing rod 100 or maintaining a tendency to lock the fixing rod 100.

[0025] In the child carrier base with a lightweight structural design as described above, the unlocking mechanism 6 is configured to link each hook 42 to simultaneously open relative to the corresponding guide slot 41 to release the locking action of the fixing rod 100, and when the child carrier is connected to the child carrier base, the unlocking mechanism 6 is released, so that each hook 42 automatically returns to the state of locking the fixing rod 100.

[0026] The utility model also provides a child safety seat, comprising a seat body and the above-mentioned child carrier base with a lightweight structural design, wherein the bottom of the seat body is detachably clamped on the child carrier base.

[0027] Compared with the prior art, the utility model has the following advantages:

[0028] 1. The base of a children's carrier of the present utility model with a lightweight structure design realizes a simplified structure design by having the housing made of non-metallic materials, the reinforcing connecting pipe having a hollow structure, the support base having a sheet-like structure, the engaging mechanism and the engaging linkage mechanism both being integrated on the corresponding support base, and the reinforcing connecting pipe being directly and fixedly connected to the housing, thus eliminating the conventional support base plate. This effectively reduces the overall weight, making it convenient to carry and handle. At the same time, it can also effectively reduce the manufacturing cost and improve the market competitiveness of the product.

[0029] 2. The present utility model optimizes the cross-sectional dimensions of the reinforcing connecting pipe, that is, reducing the width dimension of the cross-section and increasing its height dimension. This is beneficial to improving the anti-bending moment effect of the reinforcing connecting pipe in the load-bearing direction, and at the same time can meet the safety performance requirements, with the characteristics of being lighter in weight and better in economy.

[0030] 3. For the same reinforcing connecting pipe, the central distance between the front and rear sheet-like support parts connected to the bottom of the children's carrier is equal to the central distance between the two sheet-like mounting parts 2 corresponding to the connection with the reinforcing connecting pipe 2. Adopting such a structure can maximize the optimization of reducing the distance between the front and rear support bases, ensure that the center of gravity of the connected children's carrier is basically located in the middle between the two support bases, and at the same time make the acting point of the force of the children's carrier on the support base and the acting point of the force of the support base on the reinforcing connecting pipe be on the same vertical line. Therefore, it can avoid the problem that the center of gravity of the children's carrier itself deviates greatly from the stress center of gravity of the children's carrier base and is prone to tipping over after connection. Thus, it can effectively reduce the overall front and rear dimensions of the structure, and a smaller specification of the reinforcing connecting pipe can be selected to meet the force requirements.

[0031] 4. Each of the support bases is an independent L-shaped sheet-like and regular metal structure, with a relatively lower height dimension, and is inclined with a number of long slotted holes. On the premise of meeting the force strength requirements, it effectively simplifies the structure, reduces its weight and is convenient for processing and manufacturing.

[0032] 5. By locking the engaging mechanism in the second use state through the engaging linkage mechanism, the engaging mechanism in the second use state can be used for the fixing rod at the bottom of the children's carrier to be inserted and placed or removed. And when the children's carrier is clamped to the base through the fixing rod on its bottom, the fixing rod triggers the engaging linkage mechanism, so that the hook of the engaging mechanism is automatically released from the rotation restriction, and automatically clamps and locks the fixing rod or maintains the tendency of clamping and locking. When the present utility model is unlocked by mistake, as long as the children's carrier is not separated from the children's carrier base, the hook of the engaging mechanism still maintains the tendency of clamping and locking the fixing rod. Therefore, it has the function of preventing accidental unlocking and further improves the safety and reliability of use.

[0033] 6. To ensure the stable, safe and reliable use of the clamping linkage mechanism, the safety locking mechanism is configured to lock the clamping linkage mechanism when the child carrier is connected and cooperated with the base so that the clamping hook enters the first use state.

Description of the Drawings

[0034] The following further details the specific embodiments of the present invention with reference to the drawings, where:

[0035] Figure 1 It is a three-dimensional structure diagram of the clamping mechanism of the present invention in the first use state.

[0036] Figure 2 It is a three-dimensional structure diagram of the clamping mechanism of the present invention in the second use state.

[0037] Figure 3 It is a three-dimensional use state diagram during the connection and cooperation process between the child carrier and the child carrier base of the present invention.

[0038] Figure 4 It is a cross-sectional view of the use state during the connection and cooperation process between the child carrier and the child carrier base of the present invention.

[0039] Figure 5 It is a three-dimensional use state diagram when the child carrier is connected and cooperated with the child carrier base of the present invention.

[0040] Figure 6 It is a cross-sectional view of the use state when the child carrier is connected and cooperated with the child carrier base of the present invention.

[0041] Figure 7 It is a three-dimensional diagram of the partial structure of the present invention.

[0042] Figure 8 It is a three-dimensional diagram of the clamping mechanism of the present invention in the first use state.

[0043] Figure 9 It is a three-dimensional diagram of the clamping mechanism of the present invention in the second use state.

Specific Embodiments

[0044] The following details the embodiments of the present invention with reference to the drawings.

[0045] As Figures 1-9 shown, a child carrier base with a lightweight structure design of the present invention includes: a housing 1, a reinforcing connecting pipe 2, a support seat 3, a clamping mechanism 4, a clamping linkage mechanism 5, and an unlocking mechanism 6.

[0046] The housing 1 is made of non-metallic material, preferably hard plastic. The reinforcing connecting pipe 2 has a hollow structure. The two reinforcing connecting pipes 2 are directly and fixedly connected to the inside of the housing 1 at intervals, and the bracket bottom plate between the reinforcing connecting pipe 2 and the housing 1 in the prior art is omitted for lightweight design, and it is arranged along the front-back direction of the child carrier base. As Figure 1 , 2 , as shown in Figure 4, the cross-sectional height dimension of the reinforcing connecting pipe 2 is H, and the cross-sectional width dimension of the reinforcing connecting pipe 2 is W, satisfying: H>W. The direction of the load acting force on the reinforcing connecting pipe 2 placed on the child carrier base is parallel to the cross-sectional height direction of the reinforcing connecting pipe 2. By reducing the cross-sectional width dimension of the reinforcing connecting pipe and increasing its cross-sectional height dimension, such optimization not only reduces the weight of the reinforcing connecting pipe 2, but also improves the anti-bending moment ability of the reinforcing connecting pipe 2.

[0047] The support seat 3 has a sheet-like structure. The support seats 3 are arranged on each reinforcing connecting pipe 2 at intervals along the front-back direction. A clamping mechanism 4 is integrally provided on each support seat 3, and the clamping mechanism 4 has a first use state and a second use state. The clamping mechanism 4 is used to clamp and lock the fixing rod 100 at the bottom of the child carrier in the first use state, and the fixing rod 100 at the bottom of the child carrier can be inserted and placed or removed in the second use state of the clamping mechanism 4.

[0048] A clamping linkage mechanism 5 is also integrally provided on each support seat 3. The clamping linkage mechanism 5 is configured to release the locked state of the clamping mechanism 4 when the child carrier is connected and matched with the child carrier base, and then enter the first use state from the second use state.

[0049] The unlocking mechanism 6 is movably arranged relative to the housing 1 to perform the unlocking action on the clamping mechanism 4 correspondingly.

[0050] Therefore, through the lightweight design of the overall connection structure, including the reinforcing connecting pipe and the support seat, the present invention effectively reduces the overall weight, is convenient for carrying and transporting; at the same time, it can also effectively reduce the manufacturing cost and improve the market competitiveness of the product.

[0051] In the present invention, the clamping hook of the clamping mechanism is locked in the second use state through the clamping linkage mechanism, so that the clamping hook remains open relative to the guiding slot in the second use state, as Figures 2-4As shown, when connecting the fixing rod 100 at the bottom of the child carrier to the child carrier base, the user does not need to perform corresponding operation actions on the hook additionally. The user can directly place the fixing rod 100 at the bottom of the child carrier into the guiding slot, and then the child carrier can be firmly clamped and locked onto the child carrier base. Specifically, during the process of placing the fixing rod 100 into the guiding slot, the clamping linkage mechanism is triggered and linked by the child carrier to release the locked state of the hook in the second usage state, so that the hook switches from the second usage state to the first usage state and cooperates with the guiding slot to clamp and lock the fixing rod 100. As Figure 1 , 5 shown in -8, the function of automatic locking immediately upon connection is realized. Therefore, only one connection action is required, which has the characteristic of convenient operation.

[0052] As Figures 1-7 shown, each of the support seats 3 is an independent L-shaped sheet structure, which can make the support seat have fewer parts, a more regular shape, and a lower height. The support seat 3 includes a sheet-shaped support portion 31 and a sheet-shaped mounting portion 32. The sheet-shaped mounting portion 32 is integrally connected to the lower end of the sheet-shaped support portion 31. The sheet-shaped mounting portion 32 is fixedly connected to the reinforcing connecting pipe 2. The clamping mechanism 4 is integrally connected to the sheet-shaped support portion 31. The central distance between the front and rear two sheet-shaped support portions 31 connected to the bottom of the child carrier of the same reinforcing connecting pipe 2 is equal to the central distance between the corresponding two sheet-shaped mounting portions 32 connected to the reinforcing connecting pipe 2. With such a structure, the distance between the front and rear two support seats can be optimized and reduced to the maximum extent, and it is ensured that the center of gravity of the child carrier connected and used is basically located in the middle between the two support seats, so that the acting point of the force of the child carrier on the support seat and the acting point of the force of the support seat on the reinforcing connecting pipe are on the same vertical line. Therefore, the problem that the center of gravity of the child carrier itself deviates greatly from the stress center of gravity of the child carrier base and is prone to tipping over after connection can be avoided. With such a structural design, the overall front and rear dimensions of the structure can be effectively reduced, and a smaller specification of the reinforcing connecting pipe can be selected to meet the force requirements. Among them, a reinforcing connecting pipe 2 connects and fixes the two support seats 3, which can improve the structural strength between the two support seats 3 and ensure safe and reliable connection. At the same time, the reinforcing connecting pipe is a hollow hard material, such as steel or aluminum. While ensuring the structural strength, it can also reduce the overall weight of the child carrier base and achieve lightweight. In this embodiment, the reinforcing connecting pipe 2 and the housing 1 can be connected and fixed by connection screws or other connection methods, and the support seat 3 and the reinforcing connecting pipe 2 can be connected and fixed by welding or connection screws or other connection methods.

[0053] As Figures 1-7 shown, the support seat 3 is made of metal, and a plurality of long strip holes 311 for weight reduction are obliquely arranged on the sheet-shaped support portion 31, which can effectively reduce its weight while ensuring its structural strength, making its structure more concise and more economical.

[0054] As shown Figures 1-7 in the figure, in order to stably and conveniently snap-lock the fixing rod 100 at the bottom of the child carrier, the engaging mechanism 4 includes a guiding slot 41 provided on the upper part of the sheet-shaped supporting portion 31 for snap-connecting the fixing rod 100 and a hook 42 pivotally connected to the sheet-shaped supporting portion 31 and configured to cooperate with the guiding slot 41 to snap-lock the fixing rod 100. The hook 42 cooperates with the guiding slot 41 in the first use state to snap-lock the fixing rod 100, and the hook 42 is opened relative to the guiding slot 41 and restricted from rotating and locked in the second use state; the engaging linkage mechanism 5 is located between the engaging mechanism 4 and the sheet-shaped supporting portion 31, and the engaging linkage mechanism 5 is configured to release the locked state of the hook 42 when the child carrier is connected and cooperated with the child carrier base, and then enter the first use state from the second use state.

[0055] Meanwhile, in order to ensure the stable, safe and reliable use of the engaging linkage mechanism, a safety locking mechanism 7 is further included, and the safety locking mechanism 7 is configured to lock the engaging linkage mechanism 5 when the child carrier is connected and cooperated with the child carrier base to make the hook 42 enter the first use state.

[0056] As shown Figures 1-7 in the figure, the engaging linkage mechanism 5 includes a triggering linkage member 51, a triggering elastic member 52 and a linkage seat 53; the triggering linkage member 51 is movably provided on the sheet-shaped supporting portion 31 and configured to act correspondingly when the child carrier abuts against the child carrier base when the child carrier is connected to the child carrier base; the triggering elastic member 52 is located between the triggering linkage member 51 and the sheet-shaped supporting portion 31 to drive the triggering linkage member 51 to automatically reset; the linkage seat 53 is movably located between the triggering linkage member 51 and the hook 42, a linkage seat limiting component 54 for restricting the movement of the linkage seat 53 is provided between the linkage seat 53 and the triggering linkage member 51, and the linkage seat limiting component 54 is configured to release the limitation on the linkage seat 53 when the triggering linkage member 51 is abutted by the child carrier; a hook linkage component 55 for linking the corresponding rotational movement of the hook 42 is provided between the linkage seat 53 and the hook 42; the safety locking mechanism 7 is located between the triggering linkage member 51 and the linkage seat 53. When the child carrier is connected to the child carrier base so that the fixing rod 100 is placed in the guiding slot, the child carrier presses the triggering linkage member to release the restriction of the linkage seat limiting component 54 on the linkage seat 53, that is, release the locked state of the hook in the second use state, and the linkage seat 53 drives the corresponding rotation of the hook through the hook linkage component 55, so that the hook 42 automatically resets and snap-locks the fixing rod 100.

[0057] As shown Figures 1-7As shown in the figure, in order to make the structure of the present utility model accurately and reliably linked, the trigger linkage member 51 is slidably arranged on the sheet-shaped support portion 31 in the up-and-down direction, and the linkage seat 53 is slidably located between the trigger linkage member 51 and the hook 42 in the front-and-back direction; the linkage seat limiting component 54 includes a linkage seat limiting vertical groove 541 arranged on the trigger linkage member 51 or the linkage seat 53 and a corresponding linkage seat limiting rod 542 arranged on the linkage seat 53 or the trigger linkage member 51 and in limiting cooperation with the linkage seat limiting vertical groove 541. Correspondingly, a linkage seat horizontal groove 543 that is communicated with the linkage seat limiting vertical groove 541 and in which the linkage seat limiting rod 542 can move is further arranged on the linkage seat 53 or the trigger linkage member 51; the hook linkage component 55 includes a hook linkage vertical groove 551 arranged on the linkage seat 53 or the hook 42 and a corresponding hook linkage rod 552 arranged on the hook 42 or the linkage seat 53 and in limiting cooperation with the hook linkage vertical groove 551; the safety locking mechanism 7 is formed by the corresponding side wall of the linkage seat horizontal groove 543 for limiting cooperation with the linkage seat limiting rod 542 to prevent the trigger linkage member 51 from sliding upward and resetting. During the process of connecting the child carrier to the child carrier base so that the fixing rod 100 is placed in the guiding slot opening, the child carrier presses against the trigger linkage member, causing the trigger linkage member to drive the linkage seat limiting rod 542 to slide downward relative to the sheet-shaped support portion 31, so that the linkage seat limiting rod 542 is separated from the linkage seat limiting vertical groove 541 to release the restricted state of the linkage seat 53. Then, the linkage seat 53 slides and resets relative to the sheet-shaped support portion 31 in the front-and-back direction, so that the linkage seat horizontal groove 543 is slidably matched with the linkage seat limiting rod 542 (at this time, the upper side wall of the linkage seat horizontal groove 543 is in blocking cooperation with the linkage seat limiting rod 542 to prevent the trigger linkage member 51 from sliding upward and resetting). At the same time, the hook linkage vertical groove 551 is matched with the hook linkage rod 552 to drive the hook 42 to automatically reset and lock the fixing rod 100, and the linkage is stable and reliable.

[0058] In addition, the linkage seat limiting rod 542 is respectively matched with the linkage seat limiting vertical groove 541 and the linkage seat horizontal groove 543, and the hook linkage vertical groove 551 is matched with the hook linkage rod 552, which can play roles such as guiding and limiting, ensuring the smooth and stable use between the corresponding components of the present utility model.

[0059] In order to ensure that the hook keeps clamping and locking the fixing rod 100 to ensure stable and reliable connection and improve the reset efficiency, a linkage seat reset elastic member is further included for driving the linkage seat 53 to elastically reset so that the hook 42 is in a state of keeping clamping and locking the fixing rod 100 or having a tendency to keep clamping and locking the fixing rod 100. In this embodiment, the linkage seat reset elastic member can be realized by an unlocking elastic member.

[0060] As Figure 7As shown, a hook limiting structure 421 for limiting the hook 42 is provided between the hook 42 and the sheet support portion 31, and the hook limiting structure 421 includes a hook limiting shaft provided on the sheet support portion 31 for blocking and cooperating with the hook 42. In this embodiment, the hook limiting shaft limits the rotation angle of the hook, so that the hook meets the use requirements and ensures normal use; at the same time, the hook limiting shaft cooperates with the hook limiter to position the hook, ensuring that the hook is stably engaged with the locking fixing rod 100 in the first use state.

[0061] Furthermore, the hook 42 is configured to have a rotation tendency to maintain elastic return to the guide slot 41, and the locking linkage mechanism 5 is also configured so that when the child carrier is connected to the child carrier base or has not been separated from the guide slot 41, the hook 42 is in a state of maintaining the fixing rod 100 locked or maintaining a tendency to lock the fixing rod 100. When the hook needs to be stably locked in the second use state, it is necessary not only to keep the unlocking action of the unlocking handle and the unlocking linkage frame unchanged so that the hook is opened relative to the guide slot, but also to separate the fixed rod 100 from the guide slot, and then the engaging linkage mechanism can stably lock the hook in the second use state; if only the unlocking action of the unlocking handle and the unlocking linkage frame is kept unchanged (i.e., the hook is operated to switch from the first use state to the second use state to release the locking state of the fixed rod 100), since the fixed rod 100 is not separated from the guide slot, the child carrier is always in the state of pressing the trigger linkage part, so the engaging linkage mechanism cannot stably lock the hook in the second use state; finally, as long as the fixed rod 100 is located in the guide slot, the hook always keeps locking the fixed rod 100 or has the tendency to lock the fixed rod 100. Therefore, the situation that the fixed rod 100 is located in the guide slot and the hook does not lock the fixed rod 100 is avoided, ensuring safe and reliable use.

[0062] like Figure 1 , 3 -6, for the convenience of unlocking, the unlocking mechanism 6 is configured to be used to link each hook 42 to open simultaneously relative to the corresponding guide slot 41 to release the locking action of the fixed rod 100, and when the child carrier is connected to the child carrier base, the unlocking mechanism 6 is released, so that each hook 42 automatically returns to the locking state of the fixed rod 100. The unlocking mechanism 6 includes an unlocking linkage frame 61 movably disposed in the shell 1, and the unlocking linkage frame 61 is connected to the hook 42 on each support seat 2, and an unlocking elastic member 62 is provided between the unlocking linkage frame 61 and the shell 1 for driving the unlocking linkage frame 61 to automatically reset. The unlocking mechanism 6 also includes an unlocking handle 63 slidably disposed on the shell 1 and connected to the unlocking linkage frame 61, and the unlocking handle 63 is partially exposed outside the shell 1. Among them, the linkage seat 43 is formed by the corresponding end of the unlocking linkage frame 61.

[0063] For the structural lightweight design, the unlocking linkage 61 and the unlocking handle 63 are integrally injection molded from plastic.

[0064] When unlocking, the user operates the unlocking handle 63 to drive the unlocking linkage 61 to slide relative to the housing 1. The unlocking linkage 61 cooperates with the hook linkage vertical groove 551 and the hook linkage rod 552 to synchronously link each hook 42 to rotate relative to the sheet-like support portion 31, so that the hook 42 is switched from the first use state to the second use state, thereby unlocking the locking state of the hook on the fixing rod 100.

[0065] When the user releases the unlocking handle 63, under the action of the unlocking elastic member 62, the unlocking linkage 61 automatically resets, and each hook 42 is linked to rotate relative to the sheet-like support portion 31, so that the hook 42 is switched from the second use state to the first use state. In this embodiment, only one set of unlocking elastic members 62 is required to ensure that each hook always remains in the first use state to latch and lock the fixing rod 100, which has the characteristics of simplified structure and reduced cost.

[0066] As Figure 3 、 9 shown, a locking state display portion 64 that can enter the inner side of the housing 1 to be hidden or exposed outside the housing 1 is provided on the unlocking handle 63 during the corresponding sliding process of the unlocking handle 63. The user can visually check whether the locking state display portion 64 is exposed outside the housing 1, thereby prompting whether the product is in the correct latched and safe state. In some embodiments, the locking state display portion 64 can be a red color display coated on the unlocking handle 63, etc.

[0067] As Figure 1 、 2 、7 shown, the hooks 42 on the two support seats 3 arranged at intervals in the left-right direction of the child carrier base are synchronously connected by a connecting rod 200, and the engaging linkage mechanisms 5 on the two support seats 3 arranged at intervals in the left-right direction of the child carrier base are synchronously connected by a connecting rod 200. Specifically, the connecting rod 200 is respectively synchronously connected with the two trigger linkage members 51. When the child carrier is connected to the child carrier base, the child carrier pressing the trigger linkage member 51 can ensure the synchronous and smooth sliding of the trigger linkage members 51 on the two support seats 3, and at the same time improve its structural strength. The hooks on the two support seats 3 are also respectively synchronously connected by a connecting rod, which can ensure the synchronous rotation of the hooks on the two support seats 3, facilitating synchronous unlocking and locking.

[0068] In the present utility model, the connecting rod 200 and the trigger linkage member 41 are of a split design. After being combined and connected, its structure is simple, the weight is light, and it is convenient for assembly, thus avoiding the defect of large weight in the prior art of integral molding.

[0069] The utility model relates to a child safety seat, which comprises a seat body and a child carrier base with the above-mentioned lightweight structural design. The bottom of the seat body is detachably clamped on the child carrier base. The child safety seat adopts the above-mentioned child carrier base. Therefore, when connecting the seat body to the child carrier base, the user does not need to perform corresponding operating actions on the hook additionally. The user can place the fixing rod 100 at the bottom of the seat body on the guiding slot with one hand, and trigger the engaging mechanism during the placement and fitting process of the fixing rod 100, so as to release the rotation restriction of the hook, and finally the hook clamps and locks the fixing rod 100. Therefore, the child safety seat of the utility model has the characteristics of reliable connection and convenient use and operation.

Claims

1. A child carrier base with a lightweight structural design, characterized in that include: A housing (1), wherein the housing (1) is made of a non-metallic material; A reinforced connecting tube (2), the reinforced connecting tube (2) being of a hollow structure, the two reinforced connecting tubes (2) being fixedly connected to the shell (1) at intervals and directly therebetween, and extending along the front-rear direction of the child carrier base; A support seat (3), the support seat (3) being of a sheet-like structure, each of the reinforced connecting tubes (2) being provided with support seats (3) at intervals along the front-to-back direction, the center distance between the front and rear support seats (3) of the same reinforced connecting tube (2) and the bottom of the child carrier being equal to the center distance between the two support seats (3) and the reinforced connecting tube (2); A snap-fit ​​mechanism (4), each of the support seats (3) being integrally provided with a snap-fit ​​mechanism (4), and the snap-fit ​​mechanism (4) having a first use state and a second use state, wherein the snap-fit ​​mechanism (4) is used to snap-fit ​​and lock the fixing rod (100) at the bottom of the child carrier in the first use state, and the snap-fit ​​mechanism (4) is used to snap-fit ​​and place the fixing rod (100) at the bottom of the child carrier in the second use state, or to snap-fit ​​and remove the fixing rod (100) at the bottom of the child carrier; An unlocking mechanism (6) is movably arranged relative to the housing (1) to be used for correspondingly acting on the locking mechanism (4) for unlocking action.

2. A child carrier base with a lightweight structural design according to claim 1, characterized in that The height dimension of the cross section of the reinforced connecting pipe (2) is H, and the width dimension of the cross section of the reinforced connecting pipe (2) is W, satisfying: H>W.

3. A child carrier base with a lightweight structural design according to claim 1, characterized in that Each of the support seats (3) is an independent L-shaped sheet structure, comprising a sheet support portion (31) and a sheet mounting portion (32); the sheet mounting portion (32) is in a vertical state and is integrally connected to the lower end of the sheet support portion (31); the sheet mounting portion (32) is fixedly connected to the reinforced connecting tube (2); the engaging mechanism (4) is integrally connected to the sheet support portion (31); and the center distance between the front and rear sheet support portions (31) of the same reinforced connecting tube (2) and the bottom of the child carrier is equal to the center distance between the two sheet mounting portions (32) and the reinforced connecting tube (2) respectively.

4. A child carrier base with a lightweight structural design according to claim 3, characterized in that The support seat (3) is made of metal, and a plurality of long slot holes (311) for reducing weight are obliquely arranged on the sheet-shaped support portion (31).

5. The child carrier base with a lightweight structural design according to claim 3, characterized in that The locking mechanism (4) comprises a guide slot (41) provided on the upper part of the sheet-like support portion (31) for locking the fixing rod (100) and a hook (42) pivotally connected to the sheet-like support portion (31) for cooperating with the guide slot (41) to lock the fixing rod (100). In a first use state, the hook (42) cooperates with the guide slot (41) to lock the fixing rod (100). In a second use state, the hook (42) is opened relative to the guide slot (41) and is restricted from rotating so as to be locked.

6. The child carrier base with a lightweight structural design according to claim 1, characterized in that The invention also comprises a locking linkage mechanism (5) located between the locking mechanism (4) and the support seat (3), and each of the support seats (3) is also integrated with a locking linkage mechanism (5). The locking linkage mechanism (5) is configured to release the locked state of the locking mechanism (4) when the child carrier is connected and matched with the child carrier base, thereby entering the first use state from the second use state.

7. A child carrier base with a lightweight structural design according to claim 6, characterized in that It also comprises a safety locking mechanism (7), wherein the safety locking mechanism (7) is configured to lock the locking linkage mechanism (5) when the child carrier is connected and matched with the child carrier base so that the locking mechanism (4) enters a first use state.

8. The child carrier base with a lightweight structural design according to claim 7, characterized in that The engaging linkage mechanism (5) comprises a trigger linkage member (51), a trigger elastic member (52) and a linkage seat (53); The trigger linkage member (51) is movably disposed on the support seat (3) and is configured to be resisted by the child carrier and to move accordingly when the child carrier is connected to the child carrier base; The trigger elastic member (52) is located between the trigger linkage member (51) and the support seat (3) to drive the trigger linkage member (51) to automatically reset; The locking mechanism (4) comprises a guide slot (41) provided on the upper part of the support seat (3) for locking the fixing rod (100) and a hook (42) pivotally connected to the support seat (3) for cooperating with the guide slot (41) to lock the fixing rod (100); the linkage seat (53) is movably located between the trigger linkage member (51) and the hook (42); a linkage seat limiting component (54) for limiting the movement of the linkage seat (53) is provided between the linkage seat (53) and the trigger linkage member (51); and the linkage seat limiting component (54) is configured to release the limiting of the linkage seat (53) when the trigger linkage member (51) is impacted by the child carrier; and a hook linkage component (55) for linking the hook (42) with a corresponding rotational movement is provided between the linkage seat (53) and the hook (42); The safety locking mechanism (7) is located between the trigger linkage member (51) and the linkage seat (53).

9. A child carrier base with a lightweight structural design according to claim 8, characterized in that The trigger linkage member (51) is slidably disposed on the sheet-shaped support portion (31) up and down, and the linkage seat (53) is slidably disposed between the trigger linkage member (51) and the hook (42) forward and backward. The linkage seat limiting assembly (54) comprises a linkage seat limiting vertical groove (541) provided on the trigger linkage member (51) or the linkage seat (53) and a linkage seat limiting rod (542) correspondingly provided on the linkage seat (53) or the trigger linkage member (51) and limitingly cooperating with the linkage seat limiting vertical groove (541); correspondingly, the linkage seat (53) or the trigger linkage member (51) is also provided with a linkage seat transverse groove (543) which is in communication with the linkage seat limiting vertical groove (541) and in which the linkage seat limiting rod (542) can move; The hook linkage assembly (55) comprises a hook linkage vertical groove (551) provided on the linkage seat (53) or the hook (42), and a hook linkage rod (552) correspondingly provided on the hook (42) or the linkage seat (53) and limitedly matched with the hook linkage vertical groove (551); The safety locking mechanism (7) is formed by a corresponding side wall of the linkage seat transverse groove (543) for limiting cooperation with the linkage seat limiting rod (542) to prevent the trigger linkage member (51) from sliding upwards and resetting.

10. A child carrier base with a lightweight structural design according to claim 9, characterized in that The hook (42) is configured to have a rotational tendency to maintain elastic reset toward the guide slot (41), and the locking linkage mechanism (5) is further configured such that when the child carrier is connected to the child carrier base or has not separated from the guide slot (41), the hook (42) is in a state of maintaining the locking of the fixing rod (100) or maintaining a tendency to lock the fixing rod (100) in a locking manner.

11. A child carrier base with a lightweight structural design according to claim 5 or 9, characterized in that The unlocking mechanism (6) is configured to link the respective hooks (42) to simultaneously open relative to the corresponding guide slots (41) to release the locking action of the fixing rod (100), and when the child carrier is connected to the child carrier base, the unlocking mechanism (6) is released, so that the respective hooks (42) automatically return to the state of locking the fixing rod (100).

12. A child safety seat, characterized in that It comprises a seat body and a child carrier base with a lightweight structural design as described in any one of claims 1 to 11, wherein the bottom of the seat body is detachably snap-connected to the child carrier base.

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