CN110901484B - base - Google Patents

Abstract

The invention discloses a base, which comprises a base body and a connecting device arranged outside the base body, a flexible part retracting mechanism is installed in the seat body, and the flexible part retracting mechanism includes a rotating shaft, a winding driving part and a connecting device for connecting with the connecting device. The first flexible part is wound around the rotating shaft, and the winding driving part is connected with the rotating shaft and drives the rotating shaft to rotate, so that the rotating shaft winds up or releases the first flexible part to drive the connecting device to move. The base of the invention can accurately adjust the length of the flexible part to ensure the installation accuracy of the baby car seat, and has the advantages of simple structure and easy adjustment.

Description

base

technical field

The invention relates to the field of products for infants and young children, in particular to a base.

Background technique

With the continuous development of society, more and more families have their own cars, and children have more and more opportunities to travel by car with their parents. Due to the weak self-protection ability of children, children in vehicles tend to suffer greater injuries than adults in accidents. In response to this situation, various baby car seats have appeared on the market, and these baby car seats can be fixed on the common car seat for use, so that the children in the car can have a comfortable feeling while obtaining safety guarantees.

Generally speaking, the base of these baby car seats can be connected with the interface on the car seat through the connection device such as the International Organization for Standardization Fixture (ISOFIX) or the lower fastener and tether interface (LATCH) used by children at the rear end. Connection, in order to facilitate the connection between the connection device and the corresponding interface on the car, the traditional connection device is directly fixed to the rear side of the bottom of the baby seat through the webbing, and the extension of the webbing enables the connection device to be connected to the interface on the car seat. Since the car seat and the infant car seat are in a relatively fit state after being connected, it is difficult for the user to adjust the length of the webbing at the rear of the infant car seat, resulting in the inability to adjust the webbing to the optimum length, thus making the infant car seat It cannot be tightly fixed on the car seat. Therefore, the baby car seat is likely to shake relative to the car seat during the driving of the car, which will bring discomfort to the baby, and it may be caused by excessive movement of the baby car seat. And cause safety hazard to young children, can't satisfy existing demand.

Therefore, there is an urgent need for a base that can accurately adjust the length of the flexible member to ensure the installation accuracy of the baby car seat, and has a simple structure and is easy to adjust to overcome the above-mentioned defects.

Contents of the invention

The object of the present invention is to provide a base that can accurately adjust the length of the flexible member to ensure the installation accuracy of the baby car seat, 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 seat body and a connecting device arranged outside the seat body, a flexible part retracting mechanism is installed in the seat body, and the flexible part retracting mechanism includes a rotating shaft, a winding drive part and a connecting device for The first flexible part is connected, the first flexible part is wound around the rotating shaft, and the winding driving part is connected with the rotating shaft, and drives the rotating shaft to rotate, so that the rotating shaft winds up or releases the first flexible part to drive the connecting device to move.

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

Specifically, the rotating shaft is provided with a first threading member and a second threading member, one end of the first flexible member is fixed to the first threading member and wound on the first threading member, and one end of the second flexible member is fixed on the second threading member and wound on the second threading member.

Preferably, the flexible member retracting mechanism further includes a locking device for restricting the rotation of the rotating shaft in the direction of releasing the first flexible member. The locking device includes a locking member and a ratchet mounted on the rotating shaft, and the locking member and the ratchet are engaged with each other to restrict the rotation of the rotating shaft. .

Specifically, the locking member includes a ratchet and a connecting rod arranged along the axial direction of the rotating shaft, the ratchet is disposed on the connecting rod, and the rotation of the connecting rod enables the ratchet to engage or disengage from the ratchet.

Specifically, the locking device further includes an operating part, and the operating part is arranged on the connecting rod.

Specifically, the operating part is the third flexible part.

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

Specifically, the locking device further includes an elastic member, which provides an elastic force to keep the locking member engaged with the ratchet.

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

Preferably, the bottom of the base body has a receiving groove for receiving the connection device, and the receiving groove has a communication hole through which the first flexible member passes.

Preferably, the rotating shaft is arranged along the left-right direction of the seat body, the rotation axis of the rotating shaft is arranged parallel to the left-right direction of the seat body, and the first flexible member is wound around the end of the rotating shaft and extends along the front-rear direction of the seat body.

Specifically, the winding driving part is a second flexible part, and one end of the second flexible part is wound at the middle of the rotating shaft and extends along the front and back direction of the seat body. The winding direction of the second flexible part is the same as that of the first flexible part The direction is opposite, when the second flexible piece is pulled, the first flexible piece is driven to be wound up on the rotating shaft.

Specifically, the flexible element retracting mechanism includes two first flexible elements, and the two first flexible elements are respectively wound around two ends of the rotating shaft.

Compared with the prior art, since the rotating shaft is respectively connected with the first flexible member and the winding driving member, when the first flexible member is wound up, the rotating shaft is driven by the winding driving member to rotate and wind the first flexible member , thereby shortening the release length of the first flexible part to drive the connecting device closer to the rotating shaft, thereby indirectly realizing the recovery of the connecting device; and when the first flexible part is released, the movement of the connecting device makes the rotating shaft rotate to release the first flexible part , so as to realize the installation of the connecting device and the external interface by extending the release length of the first flexible member, therefore, the first flexible member can be adjusted according to actual needs through the active driving of the winding drive member and the free stretching of the first flexible member. The flexible part can shorten or extend the length of the first flexible part accurately, so as to ensure a good connection between the connecting device of the child car seat and the interface of the car seat, thereby making the connection between the child car seat and the car seat more reliable. In order to make the baby feel better in use and have high safety; moreover, when the user releases the first flexible part, and then winds up the first flexible part through the winding drive part, the first flexible part can be realized. With the precise adjustment of the flexible parts, the whole mechanism has a simple structure, simple operation and easy adjustment, and is beneficial to the user's installation and disassembly, and the operation is convenient.

Description of drawings

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

Fig. 2 is a schematic perspective view of the three-dimensional structure of the first embodiment of the base of the present invention from another angle.

Fig. 3 is a schematic perspective view of the first embodiment of the base of the present invention after the cover is hidden.

Fig. 4 is a perspective view of the first embodiment of the base of the present invention after hiding the covering member.

FIG. 5 is a schematic perspective view of the first embodiment of the base of the present invention after the cover body is hidden.

Fig. 6 is a three-dimensional exploded structural diagram of the first embodiment of the base of the present invention in a disassembled state after the cover body is hidden and the locking device is in a locked state.

Fig. 7 is a three-dimensional exploded structure schematic diagram of the first embodiment of the base of the present invention in the disassembled state after the cover body is hidden and the locking device is in the unlocked state.

Fig. 8 is a three-dimensional structural schematic view of the ratchet and the first threading member in the first embodiment of the base of the present invention.

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

Fig. 10 is a schematic perspective view of the second embodiment of the base of the present invention after hiding the covering part and the first flexible part.

FIG. 11 is a partial enlarged view of A in FIG. 10 .

Detailed ways

In order to describe the technical content, structural features, and achieved effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to FIG. 1 to FIG. 3 , which illustrate the first embodiment of the base of the present invention. In this embodiment, the base 200 includes a seat body 1 and a connecting device 2 . The connecting device 2 is arranged outside the base body 1 , and the flexible element retracting mechanism 100 is installed inside the base body 1 . The flexible part retracting mechanism 100 includes a rotating shaft 3, a winding drive part 4 and a first flexible part 5 for connecting with the connecting device 2. The first flexible part 5 extends from the inside of the seat body 1 to the outside of the seat body 1 and connects with the connecting device 2 connection, the first flexible member 5 is wound around the rotating shaft 3, and the winding driving member 4 is connected with the rotating shaft 3, and drives the rotating shaft 3 to rotate, so that the rotating shaft 3 winds up or releases the first flexible member 5 to drive the connecting device 2 to move. When the first flexible member 5 is rolled up, the rotating shaft 3 is driven by the winding driver 4 to rotate and wind the first flexible member 5, thereby driving the connecting device 2 to the rotating shaft by shortening the release length of the first flexible member 5. 3 close, and then indirectly achieve the recovery of the connecting device 2; when the first flexible member 5 is released, the movement of the connecting device 2 makes the rotating shaft 3 rotate to release the first flexible member 5 in the rolled-up state, thereby extending the first flexible member 5 The release length of the part 5 is used to realize the installation of the connecting device 2 and the external interface (not shown). Therefore, by actively driving the winding drive part 4 and free stretching of the first flexible part 5, the first flexible part 5 can be accurately aligned. The released length of a flexible member 5 is adjusted, the structure is simple and the adjustment precision is high. In order to make the first flexible part 5 in a stable state after adjustment, the flexible part retracting mechanism 100 also includes a locking device 6 for limiting the rotation of the rotating shaft 3 in the direction of releasing the first flexible part 5, and the locking of the locking device 6 makes the rotating shaft 3. It can only be rotated along the direction in which the first flexible member 5 is rolled up, but not in the direction in which the first flexible member 5 is released, so as to achieve the stability of winding. More specifically, as follows:

Please refer to Fig. 1 to Fig. 3, the seat body 1 has a storage cavity 11 with an opening upward and a cover 12 covering the opening of the storage cavity 11, the rotating shaft 3, the winding driving part 4 and the first flexible part 5 are all arranged in the storage cavity 11, the rotating shaft 3 is rotatably installed in the receiving cavity 11, the rotating shaft 3 is arranged along the left and right direction of the base body 1, and the rotation axis of the rotating shaft 3 is arranged parallel to the left and right direction of the base body 1, so that the parts are more Compact, in order to achieve the purpose of reducing the overall volume of the base 200 . Specifically, the bottom of the seat body 1 has a receiving groove 13 for receiving the connecting device 2, the receiving groove 13 has a communication hole 131 through which the first flexible member 5 passes, and the communication hole 131 communicates with the receiving groove 13 and the receiving cavity 11 respectively, Therefore, when the first flexible member 5 is wound up on the rotating shaft 3, it can simultaneously drive the connecting device 2 to move in a direction close to the rotating shaft 3 and be stored in the receiving groove 13, so that not only can the interface of the car seat (not shown) The connection of the connecting device 2 is more compact, thereby indirectly improving the accuracy of installation so that the connected car seat and infant car seat (not shown) are more fit, and when the connecting device 2 is not in use, it can be directly The connecting device 2 is accommodated at the bottom of the base body 1 , which prevents the connecting device 2 from being exposed outside the base body 1 for the purpose of aesthetics, and can achieve better protection for the connecting device 2 . In addition, the accommodating groove 13 provided on the seat body 1 can be deleted according to actual needs.

Please refer to Fig. 3 to Fig. 4, there are at least two first flexible parts 5 arranged at intervals along the axial direction of the rotating shaft 3, and the spaced arrangement of the first flexible parts 5 can effectively prevent two adjacent first flexible parts from Interference between 5. Preferably, the intervals between two adjacent first flexible members 5 are equal, so that all the first flexible members 5 can act on the rotating shaft 3 evenly to improve the stability of the transmission. In this embodiment, the first flexible member 5 is wound around the end of the rotating shaft 3 and extends along the front and rear directions of the seat body 1 , so that the arrangement of the components is more compact and the transmission is more flexible. The flexible element take-up mechanism 100 includes two first flexible elements 5 , and the two first flexible elements 5 are respectively wound around the two ends of the rotating shaft 3 . Preferably, the two first flexible elements 5 are distributed symmetrically. Correspondingly, the number of the connecting device 2, the receiving groove 13 and the communication hole 131 is set to two and arranged close to both ends of the rotating shaft 3, so as to indirectly maintain a suitable distance between the two connecting devices 2 to fit the car seat on the interface. Preferably, the first flexible member 5 is a ribbon, which can better realize the transmission connection between the connecting device 2 and the rotating shaft 3, and improve the transmission accuracy to ensure the adjustment accuracy. Of course, in other embodiments, there can also be one first flexible member 5 , and correspondingly, the number of the connecting device 2 , the receiving groove 13 and the communication hole 131 is all set to one.

Please refer to Fig. 3 to Fig. 4, the winding driving part 4 is the second flexible part 41, and one end of the second flexible part 41 is wound around the rotating shaft 3, and the winding direction of the second flexible part 41 is the same as that of the first flexible part 5. in the opposite direction. The rotating shaft 3 rotates along the direction in which the first flexible member 5 is released and at the same time rotates and rolls up the second flexible member 41, so that the release of the first flexible member 5 and the winding of the second flexible member 41 are realized synchronously; the second flexible member is pulled 41 makes the rotating shaft 3 rotate along the winding direction of the first flexible member 5 and releases the second flexible member 41 at the same time, so that the winding of the first flexible member 5 and the release of the second flexible member 41 are realized synchronously, by the transmission of the rotating shaft 3 The relative winding or releasing between the first flexible part 5 and the second flexible part 41 can be realized, and the structure is simple and the operation is convenient. Specifically, the second flexible piece 41 is wound around the middle of the rotating shaft 3 and extends along the front and back direction of the seat body 1. The winding direction of the second flexible piece 41 is opposite to that of the first flexible piece 5, and the second flexible piece 41 is pulled. 41, the first flexible member 5 is driven to wind up on the rotating shaft, so that the force of the second flexible member 41 can be concentrated in the middle of the rotating shaft 3, thereby improving the stability of the rotating shaft 3 rotation. Preferably, the second flexible member 41 is a ribbon, which can better realize the transmission connection between the second flexible member 41 and the rotating shaft 3, and improve the accuracy of the transmission to ensure the accuracy of adjustment. In addition, the seat body 1 is provided with a through hole 14, and the winding driving member 4 passes through the through hole 14 to extend to the outside of the seat body 1, and the setting of the through hole 14 enables the winding driving member 4 to extend to the outside of the seat body 1, Therefore, the user can control the winding driving member 4 directly outside the seat body 1, which increases the convenience of operation. Preferably, the through hole 14 is provided at the front of the base 200 to improve the convenience of use. It can be understood that the winding drive member 4 can also use other driving devices such as a driving motor, and the manufacturer can also correspondingly set a remote controller electrically connected to the driving motor for control and adjustment, so it is not limited thereto. In this embodiment, the number of the second flexible member 41 is set to one, but the manufacturer can also adjust the number of the second flexible member 41 according to needs, and the present invention is not limited thereto. In addition, the through hole 14 provided on the base body 1 can be deleted according to actual needs.

Please refer to FIG. 3 and FIG. 5 to FIG. 6 , the second threading member 31 is provided on the rotating shaft 3 , and one end of the second flexible member 41 is fixed to the second threading member 31 and wound on the second threading member 31 , The arrangement of the second threading member 31 can realize a good connection between the rotating shaft 3 and the second flexible member 41 . Specifically, the second threading member 31 is provided with a first elongated hole 311 for the second flexible member 41 to pass through, and one end of the second flexible member 41 can pass through the first elongated hole 311 in the second threading part 31, and one end of the second flexible part 41 is fixed in the second threading part 31 by knotting or sewing a fastening button on one end of the second flexible part 41, and the other end of the second flexible part 41 Through the through hole 14 of the seat body 1 extending to the outside of the seat body 1, the second flexible member 41 can be directly pulled from the outside of the seat body 1 to realize the control of the second flexible member 41, and the setting of the first elongated hole 311 can The second flexible member 41 is better installed on the rotating shaft 3 and revolves more smoothly. In addition, the rotating shaft 3 is provided with a first threading member 32, one end of the first flexible member 5 is fixed to the first threading member 32 and wound on the first threading member 32, the setting of the first threading member 32 can A good connection between the rotating shaft 3 and the first flexible member 5 is achieved. Specifically, the first threading member 32 is provided with a second elongated hole 321 for the first flexible member 5 to pass through, and one end of the first flexible member 5 can pass through the second elongated hole 321 in the first threading part 32, and one end of the first flexible part 5 is fixed in the first threading part 32 by knotting or sewing a fastening button on one end of the first flexible part 5, and the other end of the first flexible part 5 The communication hole 131 of the receiving groove 13 extends to the outside of the receiving cavity 11 of the seat body 1 to connect with the connecting device 2. The setting of the second elongated hole 321 can make the first flexible member 5 be better installed on the rotating shaft 3 and more smoothly. to rotate. In addition, the second threading member 31 or the first threading member 32 can be deleted according to actual needs.

Referring to Fig. 1 and Fig. 4 to Fig. 8, the locking device 6 includes a locking part 61, an elastic part 62, an operating part 63 and a ratchet 64, and the locking part 61, the elastic part 62 and the operating part 63 are located near the connecting device 2 of the rotating shaft 3. On one side, the ratchet 64 is installed on the rotating shaft 3 and socketed with the rotating shaft 3. The elastic member 62 provides an elastic force to keep the locking member 61 and the ratchet 64 engaged. The locking member 61 and the ratchet 64 are engaged with each other to limit the rotation of the rotating shaft 3. The engagement of the member 61 and the ratchet 64 can realize the locking of the rotating shaft 3 in the state of one-way rotation, thereby improving the stability of the first flexible member 5 in winding, and the structure is simple. Specifically, the locking member 61 includes a pawl 611 and a connecting rod 612. The connecting rod 612 is arranged along the axial direction of the rotating shaft 3 and is pivotally connected in the receiving chamber 11. The connecting rod 612 includes a rotating rod 612a and a crank structure 612b. The ratchet 611 Set on the rotating rod 612a of the connecting rod 612, the ratchet 611 is formed by the extension of the connecting rod 612, the operating member 63 is arranged on the crank structure 612b of the connecting rod 612, and the crank structure 612b of the connecting rod 612 is driven by the operating member 63 to overcome The elastic force of the elastic member 62 swings to realize the rotation of the rotating rod 612a, the rotation of the connecting rod 612 can make the ratchet 611 and the ratchet 64 engage or disengage, and the locking member 61 can be realized by using the cooperation between the elastic member 62 and the operating member 63. Movement, thereby indirectly realizing the engagement or disengagement between the ratchet 64 and the pawl 611, the structure is simple and the operation is convenient. Please refer to Fig. 2 to Fig. 4, the housing cavity 11 of the seat body 1 is provided with a fixing seat 15 corresponding to the elastic member 62, both ends of the elastic member 62 have hooks 621, and one end of the elastic member 62 is hung on the crank of the connecting rod 612 On the structure 612b, the other end of the elastic member 62 is hung on the fixed seat 15, which is simple in structure and easy to disassemble; the operating member 63 and the elastic member 62 are all connected to the middle part of the locking member 61, so that the operating member 63 and the elastic member can 62 are all concentrated in the middle of the locking piece 61, thereby improving the stability of the locking piece 61. For example, the operating part 63 is a third flexible part 631, and the cover part 12 of the seat body 1 is provided with a hole 121, one end of the third flexible part 631 is connected to the connecting rod 612, and the other end of the third flexible part 631 By passing through the hole 121 and extending out of the seat body 1 , the user can control the third flexible member 631 outside the seat body 1 , and the connecting rod 612 swings under the pull of the third flexible member 631 . It can be understood that other operating elements 63 can be used to drive the movement of the connecting rod 612 as required, so it is not limited thereto. Please refer to FIG. 5 to FIG. 6 and FIG. 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 , and 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 connection seat 65, and the connection seat 65 has a connection ear 651 for fixing the third flexible member 631, and one end of the third flexible member 631 is fixed by knotting or the like. At the connecting ear 651. Preferably, the third flexible member 631 is a ribbon, the elastic member 62 is a compression spring, the ratchet 64 is a helical gear, and the helical gear has a locking groove 641 engaged with the ratchet 611 to limit the release of the rotating shaft 3 along the first flexible member 5 Direction rotation, simple structure. In this embodiment, two ratchets 611 are arranged symmetrically at both ends of the connecting rod 612. Correspondingly, two ratchets 64 are arranged symmetrically at both ends of the rotating shaft 3. Of course, the number of the ratchet 64 and the number of pawls 611 can also be adjusted according to needs, so it is not limited thereto. In addition, the connecting seat 65 can be deleted according to actual needs.

With reference to the accompanying drawings 1 to 8, the usage method and working principle of the base 200 with the flexible member retracting mechanism 100 of the present invention will be described in detail as follows:

When the connecting device 2 needs to be connected with the interface on the car seat, first pull the third flexible member 631 at the exit hole 121 to release the locking device 6, and then pull the connecting device 2 on both sides of the rotating shaft 3 so that the rotating shaft 3 Rotate to release the first flexible part 5 in the rolled-up state to extend the length, and simultaneously wind up the second flexible part 41 in the released state; when the connecting device 2 is connected to the interface and the first flexible part 5 needs to be adjusted When the length is released, the third flexible member 631 is released to limit the rotation of the rotating shaft 3 along the direction in which the first flexible member 5 is released, and the second flexible member 41 located at the through hole 14 is pulled to wind up the rotating shaft 3 along the first flexible member 5 Rotate in the direction so that the rotating shaft 3 rotates and rolls up the first flexible member 5 in the released state to shorten the release length of the first flexible member 5, thereby indirectly adjusting the connecting device by adjusting the released length of the first flexible member 5 2, if the release length of the first flexible member 5 is too short or too long, repeat the above steps to extend or shorten the release length of the first flexible member 5 . Wherein, when the locking device 6 needs to be released, the third flexible member 631 is pulled to make the crank structure 612b of the connecting rod 612 overcome the elastic force of the elastic member 62 to swing, and the rotating rod 612a of the connecting rod 612 is driven to rotate, so that the ratchet The pawl 611 withdraws from the engagement with the ratchet 64 to achieve the purpose of 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 downward under the action of the elastic member 62, thereby indirectly enabling The pawl 611 re-enters the locking groove 641 of the ratchet 64 to achieve engagement with the ratchet 64 .

Since the rotating shaft 3 is connected to the first flexible member 5 and the winding driving member 4 respectively, when the first flexible member 5 is wound up, the rotating shaft 3 is driven by the winding driving member 4 to rotate and wind the first flexible member 5 , thereby shortening the release length of the first flexible member 5 to drive the connecting device 2 closer to the rotating shaft 3, thereby indirectly realizing the recovery of the connecting device 2; and when the first flexible member 5 is released, the movement of the connecting device 2 makes the rotating shaft 3 appear The first flexible part 5 is released by rotating, thereby realizing the installation of the connection device 2 and the external interface by extending the release length of the first flexible part 5, therefore, by the active driving of the winding drive part 4 and the first flexible part 5 Free stretching means that the first flexible part can be adjusted according to actual needs, thereby accurately shortening or extending the length of the first flexible part 5, so as to ensure a good connection between the connecting device 2 of the infant car seat and the interface of the car seat, Furthermore, the baby car seat is more fit with the car seat, so that the infant can get a better sense of use, and the safety is high; moreover, the user first releases the first flexible part 5 when using it, and then passes the The winding driving part 4 can realize the precise adjustment of the first flexible part 5 when the winding driving part 4 is rewinding. The whole mechanism is simple in structure, easy to operate and easy to adjust, and is convenient for users to install and disassemble.

Please refer to Fig. 9-11, have shown the second embodiment of the base of the present invention, in the base 300 of this embodiment, connecting device 2, rotating shaft 3, rewinding drive member 4 and first flexible member 5 and first embodiment The structure of the example is basically the same, the difference lies in the locking device 6' and the piercing hole 121' on the seat body 1, the difference is as follows: In this embodiment, please refer to Figure 10 to Figure 11, the locking member 61', the elastic The member 62' and the operating member 63' are located on the side of the rotating shaft 3 away from the connecting device 2. The ratchet 64' is symmetrically arranged on both ends of the first threading member 31. Correspondingly, the ratchet 611' is symmetrically arranged on the At both ends of the first threading member 31, the threading hole 121' is opened at the front of the base 300 and adjacent to the through hole 14, and any one of the threading hole 121' and the through hole 14 can be deleted as required, That is to say, the second flexible piece 41 and the third flexible piece 631' pass through the exit hole 121' or the through hole 14 directly out of the seat body 1. In this embodiment, the second flexible piece 41 and the third flexible piece 631 'commonly pass through the exit hole 121', but not limited thereto. One end of the third flexible piece 631' is connected to the connecting rod 612', and the other end of the third flexible piece 631' extends to the outside of the seat body 1 through the hole 121'. The setting of the hole 121' can make the third flexible piece The member 631' extends to the outside of the seat body 1, therefore, the user can control the third flexible member 631' directly outside the seat body 1, and the connecting rod 612' swings under the pull of the third flexible member 631' , increasing the convenience of operation. Specifically, the locking member 61' includes a pawl 611' and a connecting rod 612', the connecting rod 612' is arranged along the axial direction of the rotating shaft 3 and is pivotally connected in the receiving chamber 11, and the connecting rod 612' includes a rotating rod 612a' and a crank structure 612b', the ratchet 611' is set on the rotating rod 612a' of the connecting rod 612', the ratchet 611' is formed by extending the rotating rod 612a' of the connecting rod 612', and the crank structure 612b' is formed by a The crossbar 612b1 in the middle and the pawl 611' are jointly composed, the operating member 63' is set on the crossbar 612b1 of the crank structure 612b', and the crank structure 612b' of the connecting rod 612' overcomes the elastic member under the drive of the operating member 63' 62' to swing by the elastic force to realize the rotation of the rotating rod 612a', the rotation of the connecting rod 612' can make the pawl 611' and the ratchet 64' engage or disengage, and the cooperation between the elastic part 62' and the operating part 63' can be used. The movement of the locking member 61 ′ is realized, thereby indirectly realizing the engagement or disengagement between the ratchet 64 ′ and the pawl 611 ′, and the structure is simple and the operation is convenient. Please continue to refer to FIG. 10 to FIG. 11. In this 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' On the other hand, the other end of the torsion spring abuts against the housing chamber 11, thereby providing an elastic force to keep the pawl 611' and the ratchet 64' engaged, and the pawl 611' and the ratchet 64' mesh with each other to limit the rotation of the shaft 3, the structure Simple and convenient to assemble and disassemble; preferably, the number of pawls 611 ′ and ratchet wheels 64 ′ are both set to two, but not limited thereto. The function of each component of the base 300 in this embodiment is basically the same as that of the corresponding component in the first embodiment, and the overall technical effect is also the same, so it will not be repeated here.

It should be noted that the above-mentioned left-right direction and front-rear direction are connected with the car seat by the base 200 or the base 300, and the user stands behind the base 200 or the base 300 and faces forward, and the left side of the user is The left side is the right side, the right side is the right side of the user, the front side is the front side of the user, and the rear side is the rear side of the user.

The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (13)

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.

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