CN210912112U - Rotation limiting mechanism of child safety seat - Google Patents

Abstract

The utility model provides a rotation limiting mechanism of a child safety seat, which comprises a seat fixing seat, a base, a rotary table, a handle and a positioning pin, wherein the handle is provided with a pull rod which passes through the top of the seat fixing seat to the pull rod groove at the top, two opposite reinforcing plates are fixed at the bottom of the pull rod, a horizontal sliding groove is arranged on the reinforcing plates, the end of the horizontal sliding groove is an upward-tilting chute, the top of the positioning pin is fixed with the horizontal sliding groove through a clamping shaft, the bottom of the positioning pin passes through a reset spring and a positioning pin sleeve, a positioning pin hole on the rotary table is spliced with a limiting hole arranged on the base, the rotary table is fixed on the base and can rotate at the same time, a round limiting groove is arranged on the base, limiting holes are arranged at four positions which are in cross symmetry on the limiting groove, when the clamping shaft of the positioning groove slides in the horizontal sliding, when the clamping shaft is positioned at the inclined groove, the clamping column on the handle is positioned in the fourth gear clamping groove of the rotary table, and the seat can rotate.

Description

Rotation limiting mechanism of child safety seat

Technical Field

The utility model relates to a children's safety seat accessory, specific children's safety seat's rotation stop gear that says so.

Background

The existing common child safety seat is basically composed of a seat body, a rotary table fixed at the bottom of the seat body and a base fixed at the bottom of the rotary table, wherein a cushion of the seat body is fixed with the rotary table, a slide rail is arranged between the cushion and the rotary table, the rotary table can move back and forth along the slide rail, the angle of the vertical direction of the seat is adjusted by matching an angle adjusting handle and the rotary table which are arranged below the cushion, the rotary table can rotate along 360 degrees of the base after being fixed on the base, a fixed head of the handle is fixed on the base through moving, the fixed head is fixed with a socket arranged on the rotary table during fixing, meanwhile, the handle can be pulled to enable the fixed head to be separated from the socket, and after the handle is released, the fixed head can move to the next socket along the rotating rotary table. However, the existing child safety seat is not provided with a limit mechanism when being adjusted horizontally by 360 degrees, the seat body can be horizontally rotated no matter which angle the backrest of the seat body is positioned, reverse installation is realized, the child safety seat is required to be reversely installed when an infant with the weight less than 13 kg uses the seat body according to safety regulations, the inclination angle of the backrest of the seat is about 125 degrees, the spine of the infant cannot be damaged, most of the existing parents do not know about the safety regulations, when the infant with the weight less than 13 kg uses the child safety seat, the seat is also rotated to be reversely installed at a relatively upright gear of the backrest, and a child is put into the seat for use, so that the spine of the child is easily damaged when the automobile jolts or brakes, and therefore, a child safety seat provided with a safety limit mechanism is also appeared in the existing market, for example, the child safety seat with an authorization notice number of CN 208760474U, however, the angle vertical adjusting handle and the angle horizontal adjusting handle of the child safety seat with the safety limiting mechanism are separately arranged, the structure of the child safety seat is not compact, when the safety gear of the child safety seat is adjusted to the vertical angle of the seat, the triangular abutting part of the positioning rod is always abutted by the limiting handle, the reset spring of the positioning rod is always in a stretching state, the reset spring loses elasticity, and the positioning rod cannot be reset.

SUMMERY OF THE UTILITY MODEL

In view of the defect that current children's safety seat's rotation stop gear exists, the utility model aims to solve the technical problem that: the rotation limiting mechanism of the child safety seat is compact in structure and long in service life of the return spring.

In order to achieve the above object, according to one aspect of the present invention, the present invention is realized by the following technical measures: a rotation limiting mechanism for a child safety seat, comprising: a seat fixing seat, a handle, a turntable, a base, a positioning pin sleeve and a return spring,

the seat fixing seat is arranged below the cushion of the seat body, the seat fixing seat is provided with a pull rod groove and a handle groove, the pull rod groove and the handle groove are respectively arranged at two opposite ends of the seat fixing seat and are communicated with each other, the middle part of the pull rod groove is also provided with a strip-shaped through groove,

the handle comprises a handle and a pull rod, the pull rod passes through a handle groove and is clamped in the pull rod groove, the handle is clamped in the handle groove, two parallel reinforcing plates are arranged below the pull rod, corresponding horizontal sliding grooves are arranged on the two reinforcing plates, the tail ends of the two horizontal sliding grooves are respectively provided with a chute inclined upwards,

the two sides of the upper end of the positioning pin are respectively provided with a clamping shaft, the lower end of the positioning pin penetrates through a return spring and then is inserted in the positioning pin sleeve, the lower end part of the positioning pin penetrates through the positioning pin sleeve, one end of the return spring is fixed on the clamping shaft, the other end of the return spring is fixed at the upper end of the positioning pin sleeve,

the base is provided with a spherical groove, an annular limiting groove is arranged on one circle of the bottom of the spherical groove, limiting holes are formed in four positions of the annular limiting groove in a cross symmetry mode, the rotary plate is arranged on the spherical groove and can rotate, a positioning pin hole is formed in the rotary plate, the upper end of the positioning pin is axially arranged in two horizontal sliding grooves of the handle in a clamping mode, and the lower end of the positioning pin penetrates through the strip-shaped through groove of the seat fixing base and the positioning pin hole of the rotary plate and then is fixed on one limiting hole of the.

Compared with the prior art, the utility model has the advantages of: the horizontal adjustment and the vertical adjustment of the seat can be realized through a handle, the reset spring of the positioning pin cannot be in a stretched state all the time, the service life of the child safety seat is prolonged, and meanwhile, the integral structure is more compact.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 is a schematic view of a part of a rotation limiting mechanism of a child safety seat according to the present invention.

Description of reference numerals: 1. a seat holder; 2. a base; 3. a turntable; 4. a handle; 5. positioning pins; 6. a handle slot; 7. a pull rod groove; 8. a strip-shaped through groove; 9. a handle; 10. a pull rod; 11. a reinforcing plate; 12. a horizontal chute; 13. a chute; 14. clamping a shaft; 15. a return spring; 16. positioning a pin sleeve; 17. a positioning pin hole; 18. a spherical groove; 19. a limiting groove; 20. a limiting hole; 21. clamping the column; 22. a gear clamping groove.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", "top", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1, the rotation limiting mechanism of a child safety seat provided in this embodiment includes a seat holder 1, a handle 4, a rotary plate 3, a base 2, a positioning pin 5, a positioning pin sleeve 16 and a return spring 15, where the seat holder 1 is fixed below a seat cushion of a seat body, a handle groove 6 is formed in a bottom surface of a right side of the seat holder 1, a pull rod groove 7 is formed in a top surface of the seat holder 1, the handle groove 6 is communicated with the pull rod groove 7, a bar-shaped through groove 8 is further fixed on the seat holder 1 in a middle of the pull rod groove 7, the handle 4 includes a handle 9 and a pull rod 10, the handle 9 and the pull rod 10 are respectively disposed in the handle groove 6 and the pull rod groove 7 of the seat holder 1, the pull rod 10 is hollow below, two parallel reinforcing plates 11 are fixed on an inner top surface thereof, two corresponding horizontal sliding grooves 12 are formed on the two reinforcing plates 11, and oblique inclined grooves 13 extend from left ends of the two horizontal sliding, two sides of the upper end of the positioning pin 5 are respectively fixed with a clamping shaft 14, the lower end of the positioning pin 5 passes through a return spring 15 and is inserted in a positioning pin sleeve 16, the lower end part of the return spring 15 penetrates through the positioning pin sleeve 16, one end of the return spring is fixed at the bottom of the clamping shaft 14, the other end of the return spring is fixed at the upper end of the positioning pin sleeve 16, the base 2 is provided with a spherical groove 18, the bottom of the spherical groove 18 is provided with an annular limiting groove 19 at one circle, four positions of the limiting groove 19 which are crossed and symmetrical are respectively provided with a limiting hole 20, the turntable 3 is fixed in the spherical groove 18, and the carousel 3 can rotate, and open the right side of carousel 3 has a locating pin hole 17, and the card axle 14 card of 5 upper end both sides of above-mentioned locating pin is in two horizontal spouts 12 of reinforcing plate 11, and 5 lower extremes of locating pin pass through the bar of seat fixing base 1 and lead to 8 and locating pin hole 17 after-fixing on one of them spacing hole 20 of base 2.

When the clamping columns 21 on the pull rod 10 are matched with the gear clamping grooves 22 on the rotary table 3 to adjust the angle of the seat in the vertical direction, and the handle 4 is adjusted among the first three gears, the clamping columns 14 on the two sides of the upper end of the positioning pin 5 are always positioned in the horizontal sliding groove 12, the position of the pull rod 10 in the vertical direction cannot be changed, the lower end of the positioning pin 5 is always fixed in the limiting hole 20 in the front of the base 2, the seat cannot rotate in the horizontal direction, when the clamping columns 22 of the handle 4 are adjusted to the safe gear of the fourth gear of the rotary table 4, the clamping shafts 14 on the two sides of the upper end of the positioning pin 5 are positioned at the junction of the horizontal sliding groove 12 and the inclined groove 13, after the handle 4 is pulled to slide, the two clamping shafts 14 on the positioning pin 5 can slide upwards along the inclined groove 13 of the pull rod 10, so that the lower end of the positioning pin 5 is pulled out of the limiting hole 20, when the next limiting hole 20 is met, the positioning pin 5 is inserted into the limiting hole 20 for fixing under the action of the return spring 15.

After adopting above-mentioned structure, the rotation stop gear of the children's safety seat that this embodiment provided need not two handles that separately set up, only needs a handle can realize the level (l) ing and the vertical regulation of seat, and the reset spring of locating pin can not be in the state of stretching always, is favorable to prolonging children's safety seat's life.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various changes and modifications may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (1)

1. A rotation limiting mechanism of a child safety seat is characterized by comprising: a seat fixing seat, a handle, a turntable, a base, a positioning pin sleeve and a return spring,

the seat fixing seat is arranged below the cushion of the seat body, the seat fixing seat is provided with a pull rod groove and a handle groove, the pull rod groove and the handle groove are respectively arranged at two opposite ends of the seat fixing seat and are communicated with each other, the middle part of the pull rod groove is also provided with a strip-shaped through groove,

the handle comprises a handle and a pull rod, the pull rod passes through a handle groove and is clamped in the pull rod groove, the handle is clamped in the handle groove, two parallel reinforcing plates are arranged below the pull rod, corresponding horizontal sliding grooves are arranged on the two reinforcing plates, the tail ends of the two horizontal sliding grooves are respectively provided with a chute inclined upwards,

the two sides of the upper end of the positioning pin are respectively provided with a clamping shaft, the lower end of the positioning pin penetrates through a return spring and then is inserted in the positioning pin sleeve, the lower end part of the positioning pin penetrates through the positioning pin sleeve, one end of the return spring is fixed on the clamping shaft, the other end of the return spring is fixed at the upper end of the positioning pin sleeve,

the base is provided with a spherical groove, an annular limiting groove is arranged on one circle of the bottom of the spherical groove, limiting holes are formed in four positions of the annular limiting groove in a cross symmetry mode, the rotary plate is arranged on the spherical groove and can rotate, a positioning pin hole is formed in the rotary plate, the upper end of the positioning pin is axially arranged in two horizontal sliding grooves of the handle in a clamping mode, and the lower end of the positioning pin penetrates through the strip-shaped through groove of the seat fixing base and the positioning pin hole of the rotary plate and then is fixed on one limiting hole of the.

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