Pitching angle and rotation integrated mechanism of child safety seat

Abstract

The invention discloses a child safety seat pitching angle and rotation integrated mechanism which comprises a base, a seat body, a U-shaped rotating frame, a handle assembly and a locking piece, a plurality of limiting grooves are formed in the periphery of the center of the base and used for locking the rotation direction of the seat body, and the U-shaped rotating frame is provided with a front guide groove and a rear guide groove. The handle assembly comprises a driving part, a main body and a handle part, the driving part is provided with a horizontal groove and an inclined groove, a front guide shaft is installed on the back of the chair body, the locking piece is located in a concave cavity of the driving part and is matched with the front guide shaft through a first shaft hole, and the driving shaft penetrates through a second shaft hole of the locking piece and the inclined groove of the driving part; by pulling the handle assembly, the locking piece can rotate around the first shaft part to realize locking and unlocking functions, and the key innovation lies in that the mechanism allows the chair body to rotate under all pitching angle gears, so that the flexibility and convenience of operation are remarkably improved, and more efficient and safer use experience is provided for a user.

Description

Technical Field

[0001] The present invention relates to a child safety seat, and more particularly to an integrated mechanism for the reclining angle and rotation of a child safety seat. Background Art

[0002] A child safety seat is usually fixedly installed on an automobile seat to ensure the safety of a child when riding in a vehicle. The child safety seat includes a base and a backrest. In order to meet the needs of children of different ages for riding and comfort, an adjustable reclining angle structure is usually provided between the base and the backrest. In addition, to meet the requirements for forward and reverse, left and right installation of the child safety seat on the automobile seat, a rotating mechanism needs to be provided between the backrest and the base. Two sets of independent actuating structures increase the structural complexity of the child safety seat.

[0003] The integrated mechanism for chair body rotation and reclining angle adjustment of CN109532586B includes a guide frame installed on the back of the chair body and a handle assembly for adjusting the reclining angle of the chair body. The bottom of the guide frame is pivotally connected to the base so that the chair body can rotate relative to the base. The guide frame is provided with a movable limit block with a driving shaft. At least two limit holes are preformed on the upper surface of the base. The handle assembly drives the limit block to fall into or leave the limit hole by controlling the driving shaft. The handle assembly can adjust the reclining angle between the chair body and the base. At the same time, the handle assembly can be used to control the limit block to fall into or leave the limit hole on the base to achieve control of whether the chair body can rotate or is limited in the orientation on the base. It can be seen that the handle assembly can simultaneously control the reclining angle between the chair body and the base and control the rotation or limitation of the chair body and the base. This integrated mechanism simplifies the traditional two sets of mechanisms.

[0004] The integrated mechanism has the following problems: The patent of CN109532586B can synchronously drive the backrest to adjust the reclining angle through the drive of the handle, but it can only achieve rotatable adjustment at specific reclining angle positions and cannot achieve rotatable adjustment at all reclining angle positions, which will inevitably increase the operational trouble of the rotational adjustment. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an integrated mechanism for the reclining angle and rotation of a child safety seat that improves operational convenience. Specifically, the chair body can be rotated at all reclining angle positions, thus improving the operational convenience.

[0006] The technical solution of the present invention for solving the above technical problem is: an integrated mechanism for the reclining angle and rotation of a child safety seat,

[0007] including a base, a chair body, a U-shaped rotating frame, a handle assembly and a locking member; the U-shaped rotating frame is connected to the central position of the base through a central shaft; a plurality of circumferentially distributed limiting grooves are provided around the central position of the base;

[0008] The U-shaped rotating frame includes a bottom wall and two first side walls. A pair of parallel front guiding grooves are provided at the front section positions of the two first side walls, and a rear guiding groove is provided at the rear end position of the bottom wall; a plurality of gear grooves distributed along the length direction are provided on the bottom wall corresponding to the front guiding grooves.

[0009] The handle assembly includes an integrated driving part, a main body, and a pulling part. The driving part includes two second side walls, and a horizontal groove and an inclined groove are provided between the two second side walls; a front guiding shaft is installed on the back of the chair body.

[0010] The locking part includes a first shaft part with a first shaft hole, a second shaft part with a second shaft hole, and a hook part. The locking part is located in the cavity between the two second side walls of the driving part; the front guiding shaft simultaneously penetrates into the first shaft hole of the locking part, the horizontal groove of the driving part, and the front guiding groove of the U-shaped rotating frame; a driving shaft simultaneously penetrates through the second shaft hole of the locking part and the inclined groove of the driving part.

[0011] In the first state, the hook part of the locking part penetrates through one of the gear grooves of the U-shaped rotating frame and then extends into the limiting groove of the base. At this time, the rotation of the chair body relative to the base is locked; pulling the handle assembly to move a certain distance, the driving shaft slides in the inclined groove of the handle assembly, so that the locking part rotates around the first shaft part, and the hook part of the locking part rotates away from the limiting groove of the base and the gear groove of the U-shaped rotating frame, and the rotation lock is released. At this time, it is in the second state.

[0012] A further preferred technical solution of the present invention is: in the second state, continue to pull the handle assembly forward, the chair body can slide relative to the base to adjust the reclining angle, and the front guiding shaft slides in the front guiding groove; or in the second state, the chair body can be rotated to make the U-shaped rotating frame correspond to the next limiting groove on the base.

[0013] A further preferred technical solution of the present invention is: a front fixing frame and a rear guiding block are installed on the bottom of the chair back. The front guiding shaft is installed on the front fixing frame. The rear guiding block includes a neck and a limiting part. The neck is located in the rear guiding groove and the limiting part is located behind the rear guiding groove.

[0014] The front fixing frame is a U-shaped metal frame. The bottom of the U-shaped metal frame is connected to the back of the chair body. Shaft holes are provided on the two arms of the U-shaped metal frame, and the front guiding shaft penetrates into the shaft holes.

[0015] A further preferred technical solution of the present invention is: four limiting grooves are evenly distributed in a ring on the base at intervals of 90 degrees.

[0016] A further preferred technical solution of the present invention is as follows: the front end of the U-shaped rotating frame is provided with a front warping part, and the rear end is provided with a rear warping part; the front warping part and the rear warping part are lower than the U-shaped rotating frame, and the rear side of the base is provided with a rear pressing part, and the front side of the base is provided with a front pressing part; the front pressing part presses the front warping part, and the rear pressing part presses the rear warping part;

[0017] Correspondingly, annular grooves corresponding to the front warping part and the rear warping part are provided on the base.

[0018] A further preferred technical solution of the present invention is as follows: it further includes a return spring. There are two return springs. One end of the return spring is connected to the base, and the other end is connected to the side part of the main body of the handle assembly.

[0019] A further preferred technical solution of the present invention is as follows: a groove for installing the handle assembly is provided on the back of the chair body; a guiding groove is provided on the main body of the handle assembly, and a guiding post is provided on the back of the chair. When the handle assembly moves relative to the chair body, the guiding post can move in the guiding groove.

[0020] A further preferred technical solution of the present invention is as follows: the inclination angle of the inclined groove is 30°-60°, and the sliding stroke of the driving shaft in the inclined groove is 10-20 mm.

[0021] A further preferred technical solution of the present invention is as follows: the extending direction of the horizontal groove is the same as the moving direction of the handle assembly.

[0022] A further preferred technical solution of the present invention is as follows: the mating surfaces of the hook part of the locking part with the gear slot and the limiting slot are inclined surfaces, so that the hook part can be more smooth when inserting into or leaving the gear slot and the limiting slot.

[0023] Compared with the prior art, the advantages of the present invention are as follows: when adjusting the rotation angle of a traditional child safety seat, it is usually necessary to first adjust the seat to a specific reclining angle to achieve rotation, which is extremely inconvenient in actual use. However, through the technical means of the integrated mechanism in this technical solution, the user can easily rotate the chair body at different reclining angles. This technical means breaks the limitation of the traditional seat in the operation sequence. The user no longer needs to repeatedly operate to adjust the angle, greatly improving the flexibility and convenience of the operation. For example, when it is necessary to switch the seat from facing the rear of the vehicle to facing the front of the vehicle, the user does not need to first adjust the reclining angle of the seat and can directly pull the handle assembly to complete the rotation operation, saving time and effort.

[0024] This technical solution allows users to freely rotate the seat at any pitch angle, which means that parents can quickly adjust the seat direction according to the immediate needs of the child without worrying about the operation sequence or angle limitations. This high degree of flexibility provides greater convenience for parents and also enables children to have a more comfortable experience in the vehicle, reducing discomfort or crying that may be caused by inconvenient seat adjustment.

[0025] Specifically, through the cooperation of the U-shaped rotating frame, front guide groove, rear guide groove, gear slot, and locking member, the mechanism can maintain a high degree of stability during operation. The setting of the front guide shaft and rear guide block ensures the smooth movement of the seat body during pitch angle adjustment and rotation, avoiding usage problems caused by shaking or jamming. At the same time, the precise cooperation of the hook portion of the locking member with the gear slot and limiting slot provides a reliable locking function, ensuring the stability of the seat body during driving and enhancing the overall reliability of the product.

[0026] In addition, this integrated mechanism not only realizes the integration of pitch angle adjustment and rotation functions but also provides higher functional flexibility through optimized design. For example, the inclination angle of the oblique slot and the sliding stroke design of the drive shaft make the locking and unlocking actions more precise and efficient. At the same time, the design of the four limiting slots evenly distributed at 90-degree intervals provides users with multiple preset angle options, meeting the usage requirements in different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described in detail below in conjunction with the drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0028] Figure 1 is a schematic diagram of the overall structure of the child safety seat;

[0029] Figure 2 is an exploded schematic diagram of the integrated mechanism of this embodiment;

[0030] Figure 3 is a schematic diagram of the mating structure of the integrated mechanism Figure 1 ;

[0031] Figure 4 is a schematic diagram of the mating structure of the integrated mechanism Figure 2 ;

[0032] Figure 5 is a schematic diagram of the mating structure of the integrated mechanism Figure 3 ;

[0033] Figure 6 Schematic diagram of the integrated mechanism on the back of the chair body Figure 1 ;

[0034] Figure 7 Schematic diagram of the integrated mechanism on the back of the chair body Figure 2 ;

[0035] Figure 8 Side sectional view after the integrated mechanism is assembled;

[0036] Figure 9 Schematic diagram of the integrated mechanism on the back of the chair body Figure 3 ;

[0037] Figure 10 Overall structural schematic diagram of the U-shaped rotating frame of this embodiment;

[0038] Figure 11 Overall structural schematic diagram of the handle assembly of this embodiment;

[0039] Figure 12 Structural schematic diagram of the base of this embodiment;

[0040] Figure 13 Overall structural schematic diagram of the front fixing frame of this embodiment;

[0041] Figure 14 Overall structural schematic diagram of the locking member of this embodiment;

[0042] Figure 15 Overall structural schematic diagram of the rear guide block of this embodiment. Detailed implementation manners

[0043] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only descriptive and exemplary, and should not be construed as limiting the protection scope of the present invention.

[0044] It should be noted that: Similar reference numerals denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it will not be further defined and explained in subsequent drawings.

[0045] As Figure 1 shown, the integrated mechanism 100 for the reclining angle and rotation of a child safety seat, as Figure 2 shown, its core components include a base 101, a chair body 102, a U-shaped rotating frame 103, a handle assembly 104, and a locking member 105. Among them, the base 101 serves as the foundation of the entire mechanism, provides stable support, and is connected to the vehicle seat; the chair body 102 is the part that children directly contact, and a front guide shaft 60 is installed on its back for cooperating with the U-shaped rotating frame 103 to achieve the adjustment of the reclining angle.

[0046] In addition, the U-shaped rotating frame 103 is connected to the central position of the base 101 through the central axis 10. Its unique structure enables it to carry the chair body 102 and realizes the locking and unlocking of the rotation function through the interaction with the locking member 105. The handle assembly 104 is the core component of the operation. By pulling the handle part 50, the user can drive the locking member 105 to act, so as to realize the adjustment of the reclining angle or the switching of the rotation function in different states.

[0047] In addition, the locking member 105 precisely controls the rotation locking and unlocking of the chair body 102 through the cooperation of its hook part b3 with the limiting groove 20 of the base 101 and the gear groove 13 of the U-shaped rotating frame 103, ensuring the reliability and safety of the operation. It should be noted that a plurality of circumferentially distributed limiting grooves 20 are provided on the periphery of the central position of the base 101; by providing a plurality of circumferentially distributed limiting grooves 20 on the periphery of the central position of the base 101 and cooperating with the hook part b3 of the locking member 105, precise positioning of the chair body 102 at four key angles can be achieved. Thus, the seating needs of children of different ages can be met. Other specific technical solutions will be elaborated in detail below:

[0048] As Figure 10 shown, the U-shaped rotating frame 103 is composed of a bottom wall 12 and two first side walls 11. At the front section positions of the two first side walls 11, a pair of parallel front guide grooves h1 are provided for guiding the movement of the front guide shaft 60 to ensure the stability and flexibility of the chair body 102. At the same time, as Figure 6 shown, a rear guide groove h2 is provided at the rear end position of the bottom wall 12. This guide groove cooperates with the rear guide block 15 to precisely guide the adjustment of the reclining angle of the chair body 102, enabling it to smoothly perform reclining actions at different angles, so as to meet the requirements for the comfort and safety of children's seating in different scenarios.

[0049] On the bottom wall 12 where the front guide groove h1 is located, a plurality of gear grooves 13 are evenly distributed along its length direction. These gear grooves 13 are specially provided for the hook part b3 of the locking member 105. When the hook part b3 is inserted into the corresponding gear groove 13, precise locking of the chair body 102 can be achieved, ensuring its stability at a specific position.

[0050] As Figure 11As shown, the handle assembly 104 is composed of an integrally formed driving part 30, a main body 40, and a handle part 50. The driving part 30 is provided with two second side walls 32, and a horizontal groove c1 and an inclined groove c2 are machined between these two side walls. A front guiding shaft 60 is installed on the back of the chair body 102, and this shaft is inserted into the horizontal groove c1 and can slide back and forth in the groove, thereby guiding the movement of the handle assembly 104. The inclined groove c2 is used to insert the driving shaft 70. The length of the horizontal groove c1 is relatively short, and this technical means aims to ensure that the hook part b3 of the locking part 105 can accurately insert into the corresponding gear groove 13 to achieve a reliable locking function. The extending direction of the horizontal groove c1 is consistent with the moving direction of the handle assembly 104, ensuring a smooth and accurate operation process.

[0051] As Figure 14 shown, the locking part 105 is composed of a first shaft part b1, a second shaft part b2, and a hook part b3. The first shaft part b1 is provided with a first shaft hole b11, and the second shaft part b2 is provided with a second shaft hole b21. The locking part 105 is installed in the concave cavity between the two second side walls 32 of the driving part 30. The front guiding shaft 60 sequentially passes through the first shaft hole b11 of the locking part 105, the horizontal groove c1 of the driving part 30, and the front guiding groove h1 of the U-shaped rotating frame 103. When unlocking or locking is required, the first shaft part b1 of the locking part 105 will pitch and rotate around the front guiding shaft 60, thereby driving the hook part b3 to insert into or withdraw from the gear groove 13 and the limiting groove 20 to achieve the locking and unlocking functions. More specific technical means for locking and unlocking will be elaborated below.

[0052] A driving shaft 70 simultaneously passes through the second shaft hole b21 of the locking part 105 and the inclined groove c2 of the driving part 30. The inclined groove c2 is an inclined groove with a certain inclination angle (such as 30° - 60°), and its main function is to convert the linear motion of the handle assembly 104 into the rotational motion of the locking part 105. The inclination angle of the inclined groove c2 determines the magnitude and direction of the horizontal component force generated when the driving shaft 70 slides in the groove. This horizontal component force is the key to pushing the locking part 105 to rotate around the first shaft part b1.

[0053] When the handle assembly 104 is in a static state, the driving shaft 70 is located at the preset position of the inclined groove c2, and the hook part b3 of the locking part 105 inserts into the gear groove 13 or the limiting groove 20 to achieve the locking function. When the user pulls the handle part 50 outwards, the entire handle assembly 104 moves outwards. The driving shaft 70 is connected to the locking part 105, and the locking part 105 is located in the concave cavity of the handle assembly 104. The driving shaft 70 will slide in the inclined groove c2 as the handle assembly 104 moves.

[0054] As Figures 3 to 6 、 Figure 9As shown, in actual operation, when the locking member 105 rotates, its hook portion b3 will leave the shift slot 13 or the limiting slot 20, thereby unlocking the rotation function. When the user releases the handle portion 50, the return spring s pulls the handle assembly 104 back to its original position, the drive shaft 70 slides in the opposite direction in the oblique slot c2, and the locking member 105 rotates in the opposite direction around the first shaft portion b1 under the action of the return spring, and the hook portion b3 is reinserted into the shift slot 13 or the limiting slot 20, thereby realizing the locking function.

[0055] In other words, the drive shaft 70 passes through the second shaft hole b21 of the locking member 105 and the oblique groove c2 of the driving portion 30 at the same time. When the handle portion 50 is pulled outward, the drive shaft 70 slides in the oblique groove c2. Due to the inclination angle of the oblique groove c2, the drive shaft 70 will generate a horizontal component force, pushing the locking member 105 to perform a pitch rotation around the first shaft portion b1. This rotation enables the hook portion b3 of the locking member 105 to leave or insert into the gear slot 13 and the limiting slot 20, thereby realizing the locking or unlocking function. When the user releases the handle portion 50, the return spring s pulls the handle assembly 104 back to its original position, the drive shaft 70 slides in the opposite direction, and the locking member 105 rotates in the opposite direction under the action of the return spring, returning to the initial locked state.

[0056] In the first state, the hook portion b3 of the locking member 105 passes through one of the gear slots 13 of the U-shaped rotating frame 103 and extends into the limiting slot 20 of the base 101 , thereby locking the rotation of the chair body 102 relative to the base 101 .

[0057] When the handle assembly 104 is pulled to move a certain distance, the drive shaft 70 slides in the oblique groove c2, causing the locking member 105 to rotate around the first shaft portion b1. With this rotation, the hook portion b3 is disengaged from the limiting groove 20 of the base 101 and the gear groove 13 of the U-shaped rotating frame 103, thereby releasing the rotation lock and entering the second state.

[0058] Furthermore, in the second state, by continuing to pull the handle assembly 104 forward, the following two operations can be achieved:

[0059] The first is that the chair body 102 can slide relative to the base 101 to adjust the pitch angle. At this time, the front guide shaft 60 slides in the front guide groove h1 to guide the movement trajectory of the chair body 102 to ensure a smooth and accurate adjustment process.

[0060] In addition, the chair body 102 can be rotated to align the U-shaped rotating frame 103 with the next limiting groove 20 on the base 101, thus completing the rotation action. The function of being able to flexibly switch between the adjustment of the reclining angle and the rotation operation in the second state is precisely the core technical effect of this technical solution. Users can flexibly choose the adjustment of the reclining angle or the rotation operation according to their needs. This technical means allows users to easily rotate the chair body at any reclining angle without having to first adjust to a specific angle, greatly improving the flexibility of operation. It not only enhances the convenience and flexibility of using the child safety seat, but also significantly improves the practicality of the product and the user experience.

[0061] As Figure 8 shown, a front fixing frame 14 and a rear guiding block 15 are installed on the back of the chair body 102. As Figure 13 shown, among them, the front fixing frame 14 adopts a U-shaped metal structure, denoted as U-shaped metal frame k, and its bottom is firmly connected to the back of the chair body 102. As Figure 9 shown, shaft holes k1 are respectively opened on the two side arms of the U-shaped metal frame k, and the front guiding shaft 60 is installed in these shaft holes k1, thereby realizing the stable connection between the front guiding shaft 60 and the chair body 102.

[0062] Preferably, as Figure 15 shown, the rear guiding block 15 includes a neck portion 151 and a limiting portion 152. The neck portion 151 is located in the rear guiding groove h2 and the limiting portion 152 is located at the rear side of the rear guiding groove h2. The cooperation between the neck portion 151 and the rear guiding groove h2 ensures that the chair body 102 can move smoothly along a predetermined trajectory during the adjustment of the reclining angle, providing an accurate guiding function. Moreover, by designing the rear guiding block 15 to include the neck portion 151 and the limiting portion 152, the strength of the overall structure is enhanced.

[0063] In addition, the structural design of the neck portion 151 and the limiting portion 152 enables the rear guiding block 15 to provide guiding and limiting functions without increasing additional space occupancy, maintaining the overall compactness of the child safety seat.

[0064] Preferably, as Figure 2 and Figure 12 shown, four limiting grooves are provided on the base 101. These limiting grooves are annularly distributed and evenly arranged at intervals of 90 degrees. It can realize the precise positioning of the chair body 102 at four key angles of 0 degrees, 90 degrees, 180 degrees, and 270 degrees. This multi-angle positioning function meets the usage requirements in different scenarios, such as facilitating the care of children in the vehicle and adjusting the sitting direction, etc.

[0065] Preferably, the front end of the U-shaped rotating frame 103 is provided with a front warping portion 16, and the rear end is provided with a rear warping portion 17. Both the front warping portion 16 and the rear warping portion 17 are lower than the main body portion of the U-shaped rotating frame 103. The front side of the base 101 is provided with a front pressing portion 18, and the rear side is provided with a rear pressing portion 19. The front pressing portion 18 and the rear pressing portion 19 respectively press the front warping portion 16 and the rear warping portion 17 of the U-shaped rotating frame 103, playing a role in limiting and stabilizing. Correspondingly, the base 101 is provided with an annular groove r that matches the front warping portion 16 and the rear warping portion 17.

[0066] In actual cooperation, the U-shaped rotating frame 103 is inserted into the base 101 through the area of the annular groove r where the front pressing portion 18 and the rear pressing portion 19 are not provided. Due to the existence of the front warping portion 16 and the rear warping portion 17, the U-shaped rotating frame 103 can rotate smoothly in the annular groove r.

[0067] In addition, it should be noted that there are two reset springs s. One end of the reset spring s is connected to the base 101, and the other end is connected to the side of the main body 40 of the handle assembly 104. After the user operates the handle assembly 104 to complete the locking or unlocking action, the reset spring s can automatically pull the handle assembly 104 back to the initial position without manual reset by the user. This automatic reset function greatly improves the convenience and efficiency of operation and reduces the cumbersome steps in the user's use process.

[0068] Preferably, as Figure 7 shown, the back of the chair body 102 is provided with a groove p1 for installing the handle assembly 104. A guiding groove p2 is formed on the main body 40 of the handle assembly 104, and at the same time, a guiding column p3 is provided on the back of the chair body 102. When the handle assembly 104 moves relative to the chair body 102, the guiding column p3 can slide in the guiding groove p2, thereby ensuring the smooth and accurate movement of the handle assembly 104.

[0069] Further preferably, the inclination angle of the oblique groove c2 is 30° - 60°. This angle range is carefully set to ensure that when the handle assembly 104 is pulled, the force required by the user is moderate. It will neither require too much force due to too small an angle nor result in too long an operation stroke due to too large an angle, thus optimizing the convenience and comfort of operation. In addition, the sliding stroke of the drive shaft 70 in the oblique groove c2 is 10 - 20 mm. This stroke range ensures that the locking member 105 can accurately complete the conversion from locking to unlocking, and at the same time avoids unnecessary long strokes, improving the accuracy and efficiency of operation.

[0070] In addition, the mating surface between the hook portion b3 of the locking member 105 and the gear slot 13 and the limiting slot 20 is designed as an inclined surface, so that the hook portion b3 can be more smooth when inserted into or leaving the gear slot 13 and the limiting slot 20, thereby improving the efficiency and reliability of locking and unlocking. This technical means improves the efficiency of locking and unlocking, reduces the risk of failure caused by friction or resistance, and enhances the stability and reliability of the product. At the same time, the smooth locking and unlocking actions also improve the user's operation experience.

[0071] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. The terms "first" and "second" are only for the convenience of description and have no other directional meaning, and cannot be used as a limitation to the present invention.

[0072] The integrated mechanism for the reclining angle and rotation of the child safety seat provided by the present invention has been introduced. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only for helping to understand the present invention and its core idea. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. The pitch angle and rotation integrated mechanism of the child safety seat is characterized by: It includes a base, a chair body, a U-shaped rotating frame, a handle assembly and a locking piece; the U-shaped rotating frame is connected to the center of the base through a central axis; the center of the base is provided with a plurality of limiting grooves distributed on the circumference; The U-shaped rotating frame comprises a bottom wall and two first side walls, a pair of parallel front guide grooves are provided at the front sections of the two first side walls, and a rear guide groove is provided at the rear end of the bottom wall; a plurality of gear slots distributed along the length direction are provided on the bottom wall corresponding to the front guide grooves; The handle assembly includes an integrated driving part, a main body and a handle part, the driving part includes two second side walls, a horizontal groove and an oblique groove are arranged between the two second side walls; a front guide shaft is installed on the back of the chair body; The locking member comprises a first shaft portion having a first shaft hole, a second shaft portion having a second shaft hole, and a hook portion. The locking member is located in the concave cavity between the two second side walls of the driving part; the front guide shaft simultaneously passes through the first shaft hole of the locking member, the horizontal groove of the driving part and the front guide groove of the U-shaped rotating frame; a driving shaft simultaneously passes through the second shaft hole of the locking member and the oblique groove of the driving part; In the first state, the hook portion of the locking member passes through one of the gear slots of the U-shaped rotating frame and extends into the limiting slot of the base. At this time, the rotation of the chair body relative to the base is locked; the handle assembly is pulled to move a certain distance, and the driving shaft slides in the oblique slot of the handle assembly, so that the locking member rotates around the first shaft portion, and the hook portion of the locking member rotates out of the limiting slot of the base and the gear slot of the U-shaped rotating frame, and the rotation lock is released, and the chair is in the second state.

2. The pitch angle and rotation integrated mechanism of the child safety seat according to claim 1, characterized in that: In the second state, continue to pull the handle assembly forward, the chair body can slide relative to the base to adjust the pitch angle, and the front guide shaft slides in the front guide groove; or in the second state, the chair body can be rotated so that the U-shaped rotating frame corresponds to the next limiting groove on the base.

3. The pitch angle and rotation integrated mechanism of the child safety seat according to claim 1, characterized in that: A front fixing frame and a rear guide block are installed on the bottom of the chair back, the front guide shaft is installed on the front fixing frame, and the rear guide block includes a neck and a limiting portion, the neck is located in the rear guide groove and the limiting portion is located at the rear side of the rear guide groove; The front fixing frame is a U-shaped metal frame, the bottom of which is connected to the back of the chair body, and shaft holes are provided on the two arms of the U-shaped metal frame, and the front guide shaft penetrates into the shaft holes.

4. The pitch angle and rotation integrated mechanism of the child safety seat according to claim 1, characterized in that: Four limiting grooves are evenly distributed on the base at intervals of 90 degrees.

5. The pitch angle and rotation integrated mechanism of the child safety seat according to claim 1, characterized in that: The front end of the U-shaped rotating frame is provided with a front warping portion, and the rear end is provided with a rear warping portion; the front warping portion and the rear warping portion are lower than the U-shaped rotating frame, the rear side of the base is provided with a rear pressing portion, and the front side of the base is provided with a front pressing portion; the front pressing portion presses the front warping portion, and the rear pressing portion presses the rear warping portion; Correspondingly, an annular groove corresponding to the front warped portion and the rear warped portion is provided on the base.

6. The pitch angle and rotation integrated structure of the child safety seat according to claim 1, characterized in that: It also includes two return springs, one end of which is connected to the base, and the other end of which is connected to the side of the main body of the handle assembly.

7. The pitch angle and rotation integrated structure of the child safety seat according to claim 1, characterized in that: The back of the chair body is provided with a groove for installing the handle assembly; the main body of the handle assembly is provided with a guide groove, and the chair back is provided with a guide column. When the handle assembly moves relative to the chair body, the guide column can move in the guide groove.

8. The pitch angle and rotation integrated mechanism of the child safety seat according to claim 1, characterized in that: The inclination angle of the oblique groove is 30°-60°, and the sliding stroke of the driving shaft in the oblique groove is 10-20 mm.

9. The pitch angle and rotation integrated mechanism of the child safety seat according to claim 1, characterized in that: The extending direction of the horizontal groove is consistent with the moving direction of the handle assembly.

10. The pitch angle and rotation integrated mechanism of the child safety seat according to claim 1, characterized in that: The matching surfaces between the hook portion of the locking member and the shift slot and the limiting slot are inclined surfaces, so that the hook portion can be more smoothly inserted into or left from the shift slot and the limiting slot.

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