CN110901484B

CN110901484B - Base seat

Info

Publication number: CN110901484B
Application number: CN201811075991.4A
Authority: CN
Inventors: 赵广辉
Original assignee: Wonderland Switzerland AG
Current assignee: Wonderland Switzerland AG
Priority date: 2018-09-14
Filing date: 2018-09-14
Publication date: 2023-02-21
Anticipated expiration: 2038-09-14
Also published as: CN110901484A

Abstract

The invention discloses a base which comprises a base body and a connecting device arranged outside the base body, wherein a flexible piece rolling mechanism is arranged in the base body and comprises a rotating shaft, a rolling driving piece and a first flexible piece connected with the connecting device, the first flexible piece is wound on the rotating shaft, the rolling driving piece is connected with the rotating shaft and drives the rotating shaft to rotate, and the rotating shaft rolls or releases the first flexible piece to drive the connecting device to move. The base of the invention can accurately adjust the length of the flexible piece to ensure the installation accuracy of the infant car seat, and has the advantages of simple structure, easy adjustment and the like.

Description

Base seat

Technical Field

The invention relates to the field of infant articles, in particular to a base.

Background

With the continuous development of society, more and more families own their own cars, and children have more and more chances of going out with parents. Children in a car are often more injured than adults in an accident due to the weak self-protection ability of the children. In response to the situation, various infant car seats are available in the market, and the infant car seats can be fixed on a common car seat for use, so that the children taking the car can have comfortable feelings while the children taking the car are ensured to be safe.

Generally, the bases of these infant car seats can be connected to the interfaces of the car seats through the international organization for standardization (ISOFIX) devices disposed at the rear ends of the bases or the connecting devices such as the lower fasteners and the LATCH interfaces (LATCH) used by children, in order to facilitate the connection of the connecting devices to the corresponding interfaces of the car, the conventional connecting devices are directly fixed to the rear side of the bottom of the infant car seat through the webbing, the connecting devices can be connected to the interfaces of the car seat through the extension of the webbing, the car seat and the infant car seat are in a relatively attached state after being connected, and it is difficult for a user to adjust the length of the webbing at the rear of the infant car seat, so that the webbing cannot be adjusted to the optimum length, and the infant car seat cannot be fixed to the car seat in a close manner.

Therefore, there is a need for a base with a simple structure and easy adjustment, which can accurately adjust the length of the flexible member to ensure the installation accuracy of the infant car seat, and overcome the above-mentioned drawbacks.

Disclosure of Invention

The invention aims to provide a base which can accurately adjust the length of a flexible piece to ensure the installation accuracy of a child car seat, and the base has a simple structure and is easy to adjust.

In order to achieve the above object, the base provided by the present invention includes a base body and a connecting device disposed outside the base body, a flexible piece rolling mechanism is installed in the base body, the flexible piece rolling mechanism includes a rotating shaft, a rolling driving piece and a first flexible piece for connecting with the connecting device, the first flexible piece is wound around the rotating shaft, the rolling driving piece is connected with the rotating shaft and drives the rotating shaft to rotate, so that the rotating shaft rolls or releases the first flexible piece to drive the connecting device to move.

Preferably, the winding driving member is a second flexible member, one end of the second flexible member is wound around the rotating shaft, and the winding direction of the second flexible member is opposite to the winding direction of the first flexible member.

Specifically, a first penetrating and winding piece and a second penetrating and winding piece are arranged on the rotating shaft, one end of the first flexible piece is fixed on the first penetrating and winding piece and is wound on the first penetrating and winding piece, and one end of the second flexible piece is fixed on the second penetrating and winding piece and is wound on the second penetrating and winding piece.

Preferably, the flexible member retracting mechanism further comprises a locking device for limiting the rotation of the rotating shaft in the direction of releasing the first flexible member, the locking device comprises a locking member and a ratchet wheel mounted on the rotating shaft, and the locking member and the ratchet wheel are engaged with each other to limit the rotation of the rotating shaft.

Specifically, the locking member includes a pawl provided on a link arranged in an axial direction of the rotating shaft, and the link rotates to cause the pawl to engage with or disengage from the ratchet.

Specifically, the locking device further comprises an operating piece, and the operating piece is arranged on the connecting rod.

Specifically, the operating member is a third flexible member.

Specifically, the locking device further comprises a connecting seat, and the connecting seat is connected between the operating piece and the connecting rod.

Specifically, the locking device further includes an elastic member that provides an elastic force that keeps the locking member engaged with the ratchet.

Preferably, the base body is provided with a through hole, and the rolling driving member passes through the through hole to extend to the outside of the base body.

Preferably, the bottom of the base has a receiving groove for receiving the connecting device, and the receiving groove has a communicating hole for the first flexible member to pass through.

Preferably, the rotating shaft is arranged along the left and right directions of the base body, the rotating shaft of the rotating shaft is arranged parallel to the left and right directions of the base body, and the first flexible piece is wound on the end part of the rotating shaft and extends along the front and back directions of the base body.

Specifically, the winding driving member is a second flexible member, one end of the second flexible member is wound at the middle of the rotating shaft and extends along the front-rear direction of the seat body, the winding direction of the second flexible member is opposite to the winding direction of the first flexible member, and when the second flexible member is pulled, the first flexible member is driven to be wound on the rotating shaft.

Specifically, the flexible piece furling mechanism comprises two first flexible pieces, and the two first flexible pieces are respectively wound at two ends of the rotating shaft.

Compared with the prior art, the rotating shaft is respectively connected with the first flexible part and the winding driving part, so that when the first flexible part is wound, the rotating shaft is driven by the winding driving part to rotationally wind the first flexible part, the connecting device is driven to approach the rotating shaft by shortening the release length of the first flexible part, and the recovery of the connecting device is indirectly realized; when the first flexible piece is released, the rotating shaft is rotated by the movement of the connecting device to release the first flexible piece, so that the connecting device and the external interface are installed by extending the release length of the first flexible piece, therefore, the first flexible piece can be adjusted according to actual needs by the active driving of the rolling driving piece and the free stretching of the first flexible piece, the length of the first flexible piece is accurately shortened or extended, the good connection between the connecting device of the infant car seat and the interface of the car seat is ensured, the infant car seat and the car seat are more attached, the infant car seat can obtain better use feeling, and the safety is high; moreover, the user releases the first flexible part when using, and then the rolling is carried out through the rolling driving part, so that the first flexible part can be accurately adjusted.

Drawings

Fig. 1 is a schematic perspective view of a base according to a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of another angle of the first embodiment of the base of the present invention.

Fig. 3 is a schematic perspective view of a first embodiment of the base according to the present invention after hiding the covering member.

Fig. 4 is a schematic perspective view of another angle of the first embodiment of the base according to the present invention after hiding the covering member.

Fig. 5 is a schematic perspective view of the base according to the first embodiment of the present invention after the shielding body is hidden.

Fig. 6 is a schematic perspective exploded view of the base according to the first embodiment of the present invention, which is in an exploded state after the covering body is hidden and the locking device is in a locked state.

Fig. 7 is a schematic perspective exploded view of the first embodiment of the base of the present invention in an exploded state after hiding the covering body and the locking device in a unlocked state.

Fig. 8 is a perspective view of the ratchet and the first winder of the first embodiment of the base of the present invention.

Fig. 9 is a schematic perspective view of a second embodiment of the base of the present invention.

Fig. 10 is a perspective view of a second embodiment of the base of the present invention after concealing the covering member and the first flexible member.

Fig. 11 is a partial enlarged view at a in fig. 10.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following detailed description is given with reference to the embodiments and the accompanying drawings.

Referring to fig. 1 to 3, a first embodiment of a base of the present invention is shown. In the present embodiment, the base 200 includes a housing 1 and a connecting device 2. The connecting device 2 is arranged outside the seat body 1, and the flexible piece furling mechanism 100 is arranged in the seat body 1. The flexible piece furling mechanism 100 comprises a rotating shaft 3, a rolling driving piece 4 and a first flexible piece 5 connected with the connecting device 2, wherein the first flexible piece 5 extends out of the base body 1 from the base body 1 and is connected with the connecting device 2, the first flexible piece 5 is wound on the rotating shaft 3, the rolling driving piece 4 is connected with the rotating shaft 3 and drives the rotating shaft 3 to rotate, and the rotating shaft 3 rolls or releases the first flexible piece 5 to drive the connecting device 2 to move. When the first flexible part 5 is wound, the rotating shaft 3 is driven by the winding driving part 4 to rotatably wind the first flexible part 5, so that the connecting device 2 is driven to approach the rotating shaft 3 by shortening the release length of the first flexible part 5, and the recovery of the connecting device 2 is indirectly realized; when the first flexible part 5 is released, the rotating shaft 3 is rotated to release the first flexible part 5 in the rolling state by the movement of the connecting device 2, so that the installation of the connecting device 2 and an external interface (not shown) is realized by extending the release length of the first flexible part 5, therefore, the release length of the first flexible part 5 can be accurately adjusted by the active driving of the rolling driving part 4 and the free stretching of the first flexible part 5, and the structure is simple and the adjustment precision is high. In order to make the first flexible element 5 in a stable state after adjustment, the flexible element retracting mechanism 100 further includes a locking device 6 for limiting the rotation of the rotating shaft 3 in a direction to release the first flexible element 5, and the rotating shaft 3 can only rotate in the retracting direction of the first flexible element 5 but not rotate in the releasing direction of the first flexible element 5 by using the locking of the locking device 6, so as to achieve the retracting stability. More specifically, the following:

referring to fig. 1 to 3, the seat body 1 has an accommodating cavity 11 with an upward opening and a covering member 12 covering the opening of the accommodating cavity 11, the rotating shaft 3, the winding driving member 4 and the first flexible member 5 are all disposed in the accommodating cavity 11, the rotating shaft 3 is rotatably mounted in the accommodating cavity 11, the rotating shaft 3 is disposed along the left and right directions of the seat body 1, and the rotating shaft of the rotating shaft 3 is disposed parallel to the left and right directions of the seat body 1, so that the components are more compact, and the overall size of the base 200 is reduced. Specifically, the bottom of the seat body 1 is provided with the accommodating groove 13 for accommodating the connecting device 2, the accommodating groove 13 is provided with the communicating hole 131 for the first flexible part 5 to pass through, the communicating hole 131 is respectively communicated with the accommodating groove 13 and the accommodating cavity 11, therefore, the first flexible part 5 can simultaneously drive the connecting device 2 to move towards the direction close to the rotating shaft 3 and be accommodated in the accommodating groove 13 when being wound on the rotating shaft 3, so that not only can the connection between the interface of the car seat (not shown) and the connecting device 2 be more compact, thereby indirectly improving the mounting accuracy to enable the connected car seat and the infant car seat (not shown) to be more attached, but also the connecting device 2 can be directly accommodated at the bottom of the seat body 1 when the connecting device 2 is not needed to be used, thereby avoiding the connecting device 2 from being exposed outside the seat body 1 to achieve the purpose of beauty, and further protecting the connecting device 2. In addition, the accommodating groove 13 formed in the base 1 can be deleted according to actual needs.

Referring to fig. 3 to 4, the first flexible components 5 are disposed at least two and spaced apart from each other along the axial direction of the rotating shaft 3, and the spaced arrangement of the first flexible components 5 can effectively avoid interference between two adjacent first flexible components 5. Preferably, the intervals between two adjacent first flexible members 5 are arranged equally, so that all the first flexible members 5 can act on the rotating shaft 3 uniformly to improve the stability of transmission. In this embodiment, the first flexible component 5 is wound around the end of the rotating shaft 3 and extends along the front-rear direction of the seat body 1, so that the arrangement of the components is more compact and the transmission is more flexible. The flexible piece furling mechanism 100 comprises two first flexible pieces 5, the two first flexible pieces 5 are respectively wound at two ends of the rotating shaft 3, preferably, the two first flexible pieces 5 are symmetrically distributed. Correspondingly, the number of the connecting devices 2, the accommodating groove 13 and the communication hole 131 is two and is arranged close to the two ends of the rotating shaft 3, so that the two connecting devices 2 are indirectly kept at a proper distance to be matched with the interface on the automobile seat. Preferably, the first flexible member 5 is a woven tape, and the woven tape can be used to better realize the transmission connection between the connecting device 2 and the rotating shaft 3, so as to improve the transmission accuracy and ensure the adjustment accuracy. Of course, in other embodiments, the first flexible member 5 can be provided as one, and correspondingly, the number of the connecting device 2, the receiving groove 13 and the communication hole 131 can be provided as one.

Referring to fig. 3 to 4, the winding driving member 4 is a second flexible member 41, one end of the second flexible member 41 is wound around the rotating shaft 3, and a winding direction of the second flexible member 41 is opposite to a winding direction of the first flexible member 5. The rotating shaft 3 rotates along the releasing direction of the first flexible part 5 and rolls the second flexible part 41 in a rotating manner, so that the release of the first flexible part 5 and the rolling of the second flexible part 41 are synchronously realized; the second flexible part 41 is pulled to enable the rotating shaft 3 to rotate along the rolling direction of the first flexible part 5 and release the second flexible part 41 at the same time, so that the rolling of the first flexible part 5 and the release of the second flexible part 41 are synchronously realized, the relative rolling or release between the first flexible part 5 and the second flexible part 41 can be realized through the transmission of the rotating shaft 3, and the structure is simple and the operation is convenient. Specifically, the second flexible component 41 is wound at the middle of the rotating shaft 3 and extends along the front-rear direction of the seat body 1, the winding direction of the second flexible component 41 is opposite to the winding direction of the first flexible component 5, and when the second flexible component 41 is pulled, the first flexible component 5 is driven to be wound on the rotating shaft, so that the acting force of the second flexible component 41 is concentrated at the middle of the rotating shaft 3, and the rotating stability of the rotating shaft 3 is improved. Preferably, the second flexible component 41 is a woven tape, and the woven tape can better realize the transmission connection between the second flexible component 41 and the rotating shaft 3, so as to improve the transmission accuracy and ensure the adjustment accuracy. In addition, the through hole 14 is formed in the seat body 1, the rolling driving part 4 penetrates through the through hole 14 to extend to the outside of the seat body 1, and the rolling driving part 4 can extend to the outside of the seat body 1 due to the arrangement of the through hole 14, so that a user can directly control the rolling driving part 4 outside the seat body 1, and the convenience in operation is improved. Preferably, the through-hole 14 is provided at the front of the base 200 to improve convenience of use. It can be understood that the winding driving member 4 may also adopt other driving devices such as a driving motor, and the producer may also correspondingly set a remote controller electrically connected to the driving motor for controlling and adjusting, so that the invention is not limited thereto. In this embodiment, the number of the second flexible members 41 is set to be one, but the manufacturer may also adjust the number of the second flexible members 41 according to the requirement, and is not limited thereto. In addition, the through holes 14 formed in the base 1 can be deleted according to actual needs.

Referring to fig. 3 and fig. 5 to 6, the rotating shaft 3 is provided with a second penetrating and winding member 31, one end of the second flexible member 41 is fixed to the second penetrating and winding member 31 and is wound on the second penetrating and winding member 31, and the second penetrating and winding member 31 is arranged to realize good connection between the rotating shaft 3 and the second flexible member 41. Specifically, the second winding part 31 is provided with a first elongated hole 311 for the second flexible part 41 to penetrate through, one end of the second flexible part 41 can penetrate through the second winding part 31 through the first elongated hole 311, and one end of the second flexible part 41 is fixed in the second winding part 31 by knotting or sewing the one end of the second flexible part 41, the other end of the second flexible part 41 extends to the outside of the base body 1 through the through hole 14 of the base body 1, the second flexible part 41 can be directly pulled from the outside of the base body 1 to control the second flexible part 41, and the first elongated hole 311 can enable the second flexible part 41 to be better installed on the rotating shaft 3 and smoothly rotate. In addition, the rotating shaft 3 is provided with a first penetrating and winding part 32, one end of the first flexible part 5 is fixed on the first penetrating and winding part 32 and is wound on the first penetrating and winding part 32, and the first penetrating and winding part 32 can realize good connection between the rotating shaft 3 and the first flexible part 5. Specifically, the first penetrating and winding element 32 is provided with a second elongated hole 321 for the first flexible element 5 to penetrate through, one end of the first flexible element 5 can penetrate through the second elongated hole 321 in the first penetrating and winding element 32, and one end of the first flexible element 5 is fixed in the first penetrating and winding element 32 in a knotting or sewing fastening manner through one end of the first flexible element 5, the other end of the first flexible element 5 extends out of the accommodating cavity 11 of the seat body 1 through the communicating hole 131 of the accommodating cavity 13 and is connected with the connecting device 2, and the arrangement of the second elongated hole 321 enables the first flexible element 5 to be better installed on the rotating shaft 3 and to smoothly rotate. In addition, the second penetrating member 31 or the first penetrating member 32 can be deleted according to actual needs.

Referring to fig. 1 and 4 to 8, the locking device 6 includes a locking member 61, an elastic member 62, an operating member 63, and a ratchet wheel 64, the locking member 61, the elastic member 62, and the operating member 63 are located on a side of the rotating shaft 3 close to the connecting device 2, the ratchet wheel 64 is mounted on the rotating shaft 3 and sleeved with the rotating shaft 3, the elastic member 62 provides an elastic force for keeping the locking member 61 and the ratchet wheel 64 engaged, the locking member 61 and the ratchet wheel 64 are engaged with each other to limit the rotation of the rotating shaft 3, and the rotating shaft 3 can be locked in a state of unidirectional rotation by the engagement of the locking member 61 and the ratchet wheel 64, so that the rolling stability of the first flexible member 5 is improved, and the structure is simple. Specifically, the locking member 61 includes a pawl 611 and a connecting rod 612, the connecting rod 612 is disposed along the axial direction of the rotating shaft 3 and pivotally connected to the receiving cavity 11, the connecting rod 612 includes a rotating rod 612a and a crank structure 612b, the pawl 611 is disposed on the rotating rod 612a of the connecting rod 612, the pawl 611 is formed by extending the connecting rod 612, the operating member 63 is disposed on the crank structure 612b of the connecting rod 612, the crank structure 612b of the connecting rod 612 swings under the driving of the operating member 63 and overcomes the elastic force of the elastic member 62 to rotate the rotating rod 612a, the rotating rod 612 can enable the pawl 611 to be engaged with or disengaged from the ratchet wheel 64, the locking member 61 can move by the mutual cooperation of the elastic member 62 and the operating member 63, so as to indirectly achieve the engagement or disengagement between the ratchet wheel 64 and the pawl 611, and the structure is simple and convenient to operate. Referring to fig. 2 to 4, a fixing seat 15 is disposed in the accommodating cavity 11 of the seat body 1 corresponding to the elastic element 62, two ends of the elastic element 62 are respectively provided with a hook 621, one end of the elastic element 62 is hung on the crank structure 612b of the connecting rod 612, and the other end of the elastic element 62 is hung on the fixing seat 15, so that the structure is simple and the assembly and disassembly are convenient; the operating member 63 and the elastic member 62 are connected to the middle portion of the locking member 61, so that the operating force of the operating member 63 and the elastic member 62 can be concentrated on the middle portion of the locking member 61, thereby improving the stability of the locking member 61. For example, the operation element 63 is a third flexible element 631, the cover 12 of the seat body 1 is provided with an exit hole 121, one end of the third flexible element 631 is connected to the link 612, the other end of the third flexible element 631 extends out of the seat body 1 through the exit hole 121, a user can control the third flexible element 631 outside the seat body 1, and the link 612 swings under the pulling of the third flexible element 631. It will be appreciated that other operating members 63 may be used to actuate movement of the linkage 612 as desired and are not limited thereto. Referring to fig. 5 to 6 and 8, in order to achieve a good connection between the connecting rod 612 and the third flexible member 631, the locking device 6 further includes a connecting seat 65, the connecting seat 65 is connected between the operating member 63 and the connecting rod 612, specifically, the crank structure 612b of the connecting rod 612 is sleeved in the connecting seat 65, the connecting seat 65 has a connecting ear 651 for fixing the third flexible member 631, and one end of the third flexible member 631 is fixed at the connecting ear 651 by knotting or the like. Preferably, the third flexible member 631 is a woven tape, the elastic member 62 is a compression spring, the ratchet wheel 64 is a helical gear, and the helical gear has a locking groove 641 engaged with the pawl 611 to restrict the rotation of the rotating shaft 3 in the releasing direction of the first flexible member 5, thereby achieving a simple structure. In the embodiment, the number of the pawls 611 is two and is symmetrically disposed at two ends of the connecting rod 612, and correspondingly, the number of the ratchet wheels 64 is two and is symmetrically disposed at two ends of the rotating shaft 3, but the number of the ratchet wheels 64 and the number of the pawls 611 may also be adjusted as required, and is not limited thereto. In addition, the connecting seat 65 can be deleted according to actual needs.

The method of use and the operation of the base 200 with the flexible member retracting mechanism 100 of the present invention will be described in detail with reference to fig. 1 to 8, as follows:

when the connecting device 2 needs to be connected with the interface on the car seat, the third flexible piece 631 located at the through hole 121 is pulled to unlock the locking device 6, and then the connecting devices 2 located at the two sides of the rotating shaft 3 are pulled to make the rotating shaft 3 rotate to release the first flexible piece 5 in the rolling state to extend the length, and simultaneously, the second flexible piece 41 in the releasing state is rolled; when the connection between the connection device 2 and the interface is completed and the release length of the first flexible part 5 needs to be adjusted, the third flexible part 631 is released to restrict the rotation of the rotation shaft 3 to rotate in the direction in which the first flexible part 5 is released, the second flexible part 41 located at the through hole 14 is pulled to link the rotation shaft 3 to rotate in the direction in which the first flexible part 5 is wound, so that the rotation shaft 3 is rotatably wound to wind the first flexible part 5 in the release state to shorten the release length of the first flexible part 5, and thus the position of the connection device 2 is indirectly adjusted by adjusting the release length of the first flexible part 5, and if the release length of the first flexible part 5 is too short or too long, the above steps are repeated to lengthen or shorten the release length of the first flexible part 5. When the locking device 6 needs to be unlocked, the third flexible member 631 is pulled to make the crank structure 612b of the connecting rod 612 swing against the elastic force of the elastic member 62, and the rotating rod 612a of the connecting rod 612 is driven to rotate, so that the pawl 611 is disengaged from the ratchet wheel 64 for unlocking; when the locking device 6 needs to be locked, the third flexible member 631 is released, and the crank structure 612b of the connecting rod 612 swings downwards under the action of the elastic member 62, so that the pawl 611 indirectly reenters the locking groove 641 of the ratchet wheel 64 to achieve the engagement with the ratchet wheel 64.

Because the rotating shaft 3 is respectively connected with the first flexible part 5 and the winding driving part 4, when the first flexible part 5 is wound, the rotating shaft 3 is driven by the winding driving part 4 to rotatably wind the first flexible part 5, so that the connecting device 2 is driven to approach the rotating shaft 3 by shortening the release length of the first flexible part 5, and further the recovery of the connecting device 2 is indirectly realized; when the first flexible piece 5 is released, the rotating shaft 3 is rotated to release the first flexible piece 5 by the movement of the connecting device 2, so that the connecting device 2 and an external interface are installed by extending the release length of the first flexible piece 5, therefore, the first flexible piece can be adjusted according to actual needs by the active driving of the rolling driving piece 4 and the free stretching of the first flexible piece 5, the length of the first flexible piece 5 is accurately shortened or extended, the good connection between the connecting device 2 of the infant car seat and the interface of the car seat is ensured, and the infant car seat and the car seat are more attached, so that the infant can obtain better use feeling and the safety is high; moreover, the user releases the first flexible part 5 firstly when using, and then winds the first flexible part 5 through the winding driving part 4, so that the first flexible part 5 can be accurately adjusted.

Referring to fig. 9-11, a second embodiment of the base of the present invention is shown, in the base 300 of the present embodiment, the connecting device 2, the rotating shaft 3, the rolling driving element 4 and the first flexible element 5 have substantially the same structure as the first embodiment, except that the locking device 6 'and the through hole 121' of the base body 1 have the following differences: in the present embodiment, referring to fig. 10 to 11, the locking element 61', the elastic element 62' and the operating element 63' are located on one side of the rotating shaft 3 away from the connecting device 2, the ratchet wheel 64' is symmetrically disposed on two ends of the first penetrating and winding element 31, correspondingly, the pawl 611' is symmetrically disposed on two ends of the first penetrating and winding element 31, the penetrating hole 121' is disposed on the front portion of the base 300 and is adjacent to the through hole 14, any one of the penetrating hole 121' and the through hole 14 can be deleted as required, that is, the second flexible element 41 and the third flexible element 631' together penetrate through the penetrating hole 121' or the through hole 14 directly out of the seat body 1, in the present embodiment, the second flexible element 41 and the third flexible element 631' together penetrate through the penetrating hole 121', but not limited thereto. One end of the third flexible component 631' is connected to the connecting rod 612', and the other end of the third flexible component 631' extends to the outside of the seat body 1 through the through hole 121', and the through hole 121' is disposed to enable the third flexible component 631' to extend to the outside of the seat body 1, so that a user can directly control the third flexible component 631' outside the seat body 1, and the connecting rod 612' swings under the pulling of the third flexible component 631', thereby increasing the convenience of operation. Specifically, the locking member 61' includes a pawl 611' and a connecting rod 612', the connecting rod 612' is disposed along the axial direction of the rotating shaft 3 and pivotally connected to the receiving cavity 11, the connecting rod 612' includes a rotating rod 612a ' and a crank structure 612b ', the pawl 611' is disposed on the rotating rod 612a ' of the connecting rod 612', the pawl 611' is formed by extending the rotating rod 612a ' of the connecting rod 612', the crank structure 612b ' is formed by a cross rod 612b1 inserted in the middle of the pawl 611' and the pawl 611', the operating member 63' is disposed on the cross rod 612b1 of the crank structure 612b ', the crank structure 612b ' of the connecting rod 612' is driven by the operating member 63' to swing against the elastic force of the elastic member 62' so as to rotate the rotating rod 612a ', the connecting rod 612' rotates to engage or disengage the pawl 611' with the ratchet wheel 64', and the movement of the locking member 61' is achieved by the cooperation of the elastic member 62' and the operating member 63', so as to indirectly engage or disengage the ratchet wheel 64' and the pawl 611', which is simple in structure and convenient in operation. Referring to fig. 10 to fig. 11, in the present embodiment, the elastic member 62 'is a torsion spring, when the elastic member 62' is a torsion spring, one end of the torsion spring is sleeved on the rotating rod 612a 'of the connecting rod 612', and the other end of the torsion spring abuts against the accommodating cavity 11, so as to provide an elastic force for keeping the pawl 611 'engaged with the ratchet wheel 64', and the pawl 611 'and the ratchet wheel 64' are engaged with each other to limit the rotation of the rotating shaft 3, which is simple in structure and convenient to assemble and disassemble; preferably, the number of the pawl 611 'and the ratchet wheel 64' is set to two, but not limited thereto. The functions of the components of the base 300 of the present embodiment are substantially the same as the corresponding components of the first embodiment, and the overall technical effects are also the same, and therefore, the description thereof is not repeated.

It should be noted that the left-right direction and the front-back direction mentioned above are the connection between the base 200 or the base 300 and the car seat, and the user stands behind the base 200 or the base 300 and faces forward, and is left at the left side of the user, right at the right side of the user, front at the front side of the user, and back at the back side of the user.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A base comprises a base body and a connecting device arranged outside the base body, and is characterized in that a flexible piece rolling mechanism is arranged in the base body and comprises a rotating shaft, a rolling driving piece and a first flexible piece connected with the connecting device, wherein the first flexible piece is wound on the rotating shaft, and the rolling driving piece is connected with the rotating shaft and drives the rotating shaft to rotate so that the rotating shaft rolls or releases the first flexible piece to drive the connecting device to move; the flexible piece furling mechanism further comprises a locking device for limiting the rotating shaft to rotate along the direction of releasing the first flexible piece, the locking device comprises a locking piece and a ratchet wheel arranged on the rotating shaft, and the locking piece and the ratchet wheel are mutually meshed to limit the rotating shaft to rotate; the locking piece comprises a pawl and a connecting rod arranged along the axial direction of the rotating shaft; the connecting rod includes the dwang, the pawl set up in on the dwang of connecting rod.

2. The base of claim 1, wherein the rolling driving member is a second flexible member, one end of the second flexible member is wound around the rotating shaft, and the winding direction of the second flexible member is opposite to the winding direction of the first flexible member.

3. The base of claim 2, wherein the rotating shaft is provided with a first penetrating and winding member and a second penetrating and winding member, one end of the first flexible member is fixed to the first penetrating and winding member and is wound on the first penetrating and winding member, and one end of the second flexible member is fixed to the second penetrating and winding member and is wound on the second penetrating and winding member.

4. The base of claim 1, wherein rotation of the link causes the pawl to engage or disengage the ratchet.

5. The base of claim 1, wherein the locking device further comprises an operating member disposed on the link.

6. The base of claim 5, wherein the operating member is a third flexible member.

7. The base of claim 6, wherein the locking device further comprises a connecting seat connected between the operating member and the link.

8. The base of claim 4, wherein said locking device further comprises a resilient member providing a resilient force to maintain said locking member in engagement with said ratchet.

9. The base of claim 1, wherein the base body is provided with a through hole, and the rolling driving member passes through the through hole to extend to the outside of the base body.

10. The base of claim 1, wherein the bottom of the holder body has a receiving groove for receiving the connecting device, and the receiving groove has a communication hole for passing the first flexible member.

11. The base of claim 1, wherein the rotating shaft is arranged along a left-right direction of the base body, the rotating shaft of the rotating shaft is arranged parallel to the left-right direction of the base body, and the first flexible member is wound around an end of the rotating shaft and extends along a front-back direction of the base body.

12. The base of claim 11, wherein the rolling driving member is a second flexible member, one end of the second flexible member is wound around the middle portion of the rotating shaft and extends along the front-rear direction of the base body, the winding direction of the second flexible member is opposite to the winding direction of the first flexible member, and when the second flexible member is pulled, the first flexible member is driven to roll up on the rotating shaft.

13. The base of claim 11, wherein the flexible member retracting mechanism comprises two first flexible members, and the two first flexible members are respectively wound around two ends of the rotating shaft.