CN103661023B - Infant safety chair device and infant safety chair base thereof - Google Patents

Abstract

The invention provides an infant safety chair base which is suitable for being installed on an infant safety chair carrier, and comprises a carrier body and two positioning pieces which are respectively connected with the carrier body and are mutually spaced, wherein the infant safety chair base comprises a base body for placing the two positioning pieces, two clamping pieces which are respectively pivoted on the base body and are mutually spaced so as to respectively correspond to the two positioning pieces and a linkage piece which is connected with the two clamping pieces so as to enable the respective pivoting directions of the two clamping pieces to be the same, the linkage piece selectively drives the two clamping pieces to respectively pivot to a locking position in one direction to respectively lock the two positioning pieces or drives the two clamping pieces to respectively pivot to a unlocking position in the other direction to respectively unlock the two positioning pieces, so that the integral operation is simple and convenient, the structure is simple, and the matching is firm and compact. The invention also provides an infant safety chair device with the infant safety chair base.

Description

Infant safety seat device and infant safety seat base

technical field

The invention relates to infant safety bearing equipment, in particular to an infant safety seat base and an infant safety seat device having the infant safety seat base.

Background technique

A child safety seat is a riding device specially designed for children to safely ride in a car. It adjusts the seat to cooperate with the car seat belt to provide a safe and comfortable riding environment for children. The child safety seat generally includes a seat body and a base, the base is fixed on the car seat, and the seat body is connected and fixed to the base through a connecting device, so as to ensure the safety of the child when the car is running.

However, most of the existing connection devices between the child seat body and the base have defects such as complex structure, inconvenient disassembly and placement, and low firmness of placement.

Therefore, it is necessary to provide a technical solution for solving the above-mentioned problems in the prior art.

Contents of the invention

The object of the present invention is to provide an infant safety seat base with simple structure, convenient operation and firm fit.

Another object of the present invention is to provide an infant safety seat device with simple structure, convenient operation and firm fit.

In order to achieve the above and other objectives, the technical solution of the present invention provides an infant safety seat base, which is suitable for installation of an infant safety seat seat. The infant safety seat seat includes a seat body and is respectively connected to the seat The two positioning parts of the body and spaced apart from each other, the infant safety seat base includes:

The base body is used for placing two positioning parts;

Two engaging parts are respectively pivotally connected to the base body and spaced apart from each other to correspond to the two positioning parts; and

The linking part connects the two snapping parts so that the respective pivoting directions of the two snapping parts are the same. a locating piece, or drive the two engaging pieces to pivot to the unlocking position in the other direction to respectively release the two locating pieces;

The engaging part includes a buckle corresponding to any one of the two positioning parts, and the opening direction of the hook is away from the forward direction of the vehicle; when the vehicle brakes and/or decelerates, the interlocking Under the action of inertia of the parts, the two engaging parts have an action tendency to pivot toward the locked position;

The base of the infant safety seat further includes an operating part arranged on the base body and connected to one of the two engaging parts and/or the linking part, and the operating part is operated to make The linking part selectively drives the two engaging parts to pivot to the locking position to respectively lock the two positioning parts, or drives the two engaging parts to pivot to the release position respectively. lock position to unlock the two positioning parts respectively; the operating part includes a button part pivotally connected to the base body and one of the button part and the two engaging parts connected to the button part And/or the driving part of the linkage.

In one embodiment, the base body includes two clamping components respectively matched with the two clamping components and spaced apart from each other for the placement of the two positioning components, and the linking component selectively drives the two clamping components to pivot respectively. Turn to the locking position and cooperate with the two card receiving parts to lock the two positioning parts respectively, or drive the two locking parts to pivot to the release position and cooperate with the two card receiving parts to release the two positioning parts respectively. Positioner.

In one embodiment, the base body includes a support member for pivoting the two engaging members respectively.

In one embodiment, the base body includes a shell for accommodating two engaging elements and a linking element, and the shell is provided with two openings respectively matched with the two engaging elements and spaced apart from each other so as to allow the two positioning elements to pass through. two slots, the linking piece selectively drives the two locking pieces to pivot to the locking position and respectively closes the respective opening edges of the two slots to respectively lock the two positioning pieces, or drives the two locking pieces Each pivots to the unlocking position and respectively opens part of the opening end edges of the two slots to respectively release the two positioning parts.

Preferably, the infant safety seat seat further includes a guide connected to the seat body and located between the two positioning parts, and the shell part includes a guide part corresponding to the guide and located between the two slots.

Specifically, one of the guide piece and the guide portion is a slider, and the other of the guide piece and the guide portion is a slide groove.

Preferably, when the guiding member is a slider and the guiding portion is a sliding groove, the housing further includes two inclined portions gradually recessed from the two slots toward the sliding groove respectively.

Specifically, the inclined portion is a curved structure or an inclined structure.

In one embodiment, the engaging part further includes a pivot part pivotally connected to the base body and a link part connected to the link part.

Preferably, the hook portion is bent and formed at one end of the pivot portion.

Preferably, the respective bending directions of the two hook portions are the same.

Preferably, the linkage part is pivotally connected to the linkage piece.

Preferably, the hook portion and the linkage portion are formed at both ends of the pivot portion.

In one embodiment, the linking part connects the two engaging parts so that the respective pivoting of the two engaging parts are synchronized.

Preferably, the base body includes a shell for accommodating the operating element, and the shell is provided with a window exposing a part of the operating element.

Preferably, the operating part includes an indicating part showing that the two engaging parts are pivoted to the locking position or the unlocking position.

Preferably, the indicating part includes a locking sign showing that the two engaging parts are respectively pivoted to the locked position.

Specifically, the lock symbol is green.

Preferably, the indicating part includes a release sign showing that each of the two engaging parts has pivoted to the release position.

Specifically, the unlock sign is red.

Preferably, the base of the infant safety seat further includes an elastic member that elastically interferes between the base body and the operating member, and the elastic member elastically pushes against the operating member so that the linking member can constantly drive the two engaging members to pivot The tendency to lock the two locators separately to the unlocked position.

The technical solution of the present invention also provides an infant safety seat device, which includes an infant safety seat seat. The infant safety seat seat includes a seat body and two positioning parts respectively connected to the seat body and spaced apart from each other. The infant safety seat device also includes the aforementioned infant safety seat base, and the carrier body is connected to the infant safety seat base through two positioning pieces.

Preferably, the two engaging parts and the linking part are located on one side of the base body.

Compared with the prior art, according to the embodiment of the present invention, the base body is provided with two positioning parts, and the two engaging parts are respectively pivotally connected to the base body and spaced from each other so as to correspond to the two engaging parts respectively. The moving part connects the two engaging parts so that the respective pivoting directions of the two engaging parts are the same, and the linking part selectively drives the two engaging parts to pivot to the locking position in one direction to respectively lock the two positioning parts. , or drive the two engaging parts to pivot to the unlocking position in the other direction to release the two positioning parts respectively, so that the separation and connection of the carrier body and the base body are realized, the operation is simple and convenient, and the structure is simple , with firm and compact.

Description of drawings

FIG. 1 is a schematic perspective view showing an assembly of an infant safety seat carrier mounted on an infant safety seat base according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view showing the structure of an infant safety seat carrier according to an embodiment of the present invention.

FIG. 3 is an exploded perspective view showing an infant safety seat base according to an embodiment of the present invention.

FIG. 4 is a schematic perspective view showing the assembly of some parts of the infant safety seat base according to the embodiment of the present invention.

FIG. 5 is a schematic side view showing the state of the infant safety seat base locking the infant safety seat carrier according to an embodiment of the present invention.

FIG. 6 is a schematic side view of the assembled infant safety seat base according to an embodiment of the present invention in a state where the base of the infant safety seat is released from the carrier seat of the infant safety seat.

FIG. 7 is a schematic perspective view showing the structure of the infant safety seat base in the unlocked position according to an embodiment of the present invention.

FIG. 8 is a schematic perspective view showing the structure of the infant safety seat base in the locked position according to an embodiment of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and various preferred embodiments.

Please refer to FIG. 1 to FIG. 8 , according to an embodiment of the present invention, an infant safety seat device includes an infant safety seat seat and an infant safety seat base suitable for installing the infant safety seat seat The infant safety seat seat includes a seat body 1 and two positioning pieces 11 respectively connected to the seat body 1 and spaced from each other. The two positioning pieces 11 are respectively located at the front end and rear end of the bottom surface of the seat body 1 and span the The carrier body 1 is connected to the base of the infant safety seat through two positioning parts 11, which has a simple structure, convenient operation and firm fit.

Essentially, the base of the infant safety seat includes a base body 2 on which the two positioning parts 11 are placed, and two engaging parts 21 pivotally connected to the base body 2 and spaced from each other to correspond to the two positioning parts 11 respectively. , and the linkage 22 that connects the two engaging pieces 21 so that the respective pivoting directions of the two engaging pieces 21 are the same. In this embodiment, the two engaging pieces 21 are located on the left side of the base body 2 The front and rear ends of the base body 2, but the two engaging parts 21 can also be located at the front and rear ends of the right side of the base body 2. Depending on the design requirements, the linking part 22 selectively drives the two engaging parts 21 toward One direction (such as the clockwise direction A) pivots to the locking position respectively to lock the two positioning parts 11, or drives the two engaging parts 21 to pivot in the other direction (such as the counterclockwise direction B) to the unlocking position respectively And unlock two positioning parts 11 respectively.

In addition, the base body 2 includes two card receiving parts 25 respectively matched with the two engaging parts 21 and spaced apart from each other for the placement of the two positioning parts 11 respectively. The two card receiving parts 25 are located on the left side of the base body 2 The front end and the rear end of the base body 2, but the two clamping parts 25 can also be located at the front and rear ends of the right side of the base body 2, depending on the design requirements and the matching of the two engaging parts 21. Furthermore, the two positioning parts 11 can be alternately placed on the two card receiving parts 25 to set the infant safety seat seat in a forward-facing use state or a rear-facing use state. Specifically, the card receiving part 25 is provided with a groove for the positioning part 11 to be placed. The linking member 22 selectively drives the two engaging members 21 to pivot in one direction (for example, clockwise direction A) to the locking position and cooperate with the two engaging members 25 to respectively lock the two positioning members 11, namely , the engaging member 21 and the card receiving member 25 jointly clamp the positioning member 11, or drive the two engaging members 21 to pivot in another direction (for example, counterclockwise direction B) to the unlocking position and respectively engage with the two engaging members. The fittings 25 cooperate to unlock the two positioning pieces 11 respectively, that is, the engaging piece 21 and the clamping piece 25 are separated from the positioning piece 11 together. That is to say, the engaging part 25 and the engaging part 21 jointly form an engaging space for engaging the positioning part 11 , which has a simple structure and a firm and compact fit. The engaging member 21 cooperates with the engaging member 25 to lock the positioning member 11 to enhance the locking effect. Furthermore, preferably, the base body 2 includes a support 26 for the two engaging parts 21 to be respectively pivotally connected. For example, the support 26 is a rigid pipe, which can enhance the overall rigidity and stability of the base body 2 . In this embodiment, the clamping member 25 is fixed on the supporting member 26 .

Essentially, the base body 2 includes a shell 20 for accommodating two engaging elements 21 and a link element 22 to enhance protection, and the shell element 20 has a cavity, that is, the cavity accommodates two engaging elements 21 and a connecting element 22. The linking part 22, the surface of the shell part 20 is provided with two slots 24 respectively matched with the two engaging parts 21 and spaced apart from each other to allow the two positioning parts 11 to pass through, and the slots 24 communicate with the chamber. The first slot 24 is located at the front and rear ends of the left side of the base body 2, but the two slots 24 can also be located at the front and rear ends of the right side of the base body 2, depending on the design requirements and with two engaging parts 21, the linkage 22 selectively drives the two engaging members 21 to pivot in one direction (for example, clockwise direction A) to the locked position and respectively closes part of the opening edges of the two slots 24 respectively. Lock the two positioning pieces 11. At this time, because the upper opening edge of the slot 24 is closed by the engaging piece 21, the positioning piece 11 is limited to the engaging piece 21, the middle opening edge of the slot 24 and the opening edge of the slot 24. within the closed area surrounded by the lower opening edge of the slit, and cannot escape from the slot 24, or drive the two engaging parts 21 to pivot in the other direction (for example, counterclockwise direction B) to the unlocking position and open the two respectively. The respective partial opening edges of the two slots 24 release the two positioning members 11 respectively. At this time, since the upper opening edges of the slots 24 are opened by the snap-fitting piece 21, the middle opening edges of the slots 24 and the slots The lower opening edge of 24 does not enclose a closed area, so that the positioning member 11 can be separated from the slot 24 . The engaging part 21 cooperates with the slot 24 to lock the positioning part 11 to enhance the locking effect.

Generally speaking, there are four ways to lock the locating piece 11: only use the snap-fitting piece 21 to lock the locating piece 11; The slot 24 cooperates to lock the positioning part 11 and the engaging part 21 cooperates with the card receiving part 25 and the slot 24 to lock the positioning part 11 at the same time, depending on design requirements.

In addition, the infant safety seat seat also includes a guide 12 connected to the seat body 1 and located between the two positioning parts 11, and the shell part 20 includes a bearing corresponding to the guide 12 and located between the two slots 24. Guide part 28. Specifically, one of the guide piece 12 and the guide portion 28 is a slider, and the other of the guide piece 12 and the guide portion 28 is a chute, that is, the guide piece 12 is a slider and the guide portion 28 is a chute, or the guide 12 is a chute and the guide part 28 is a slider, depending on the design requirements, the structure of the guide 12 and the guide part 28 plays a guiding role so that the infant safety seat seat is relatively small. Easily attaches to the base of an infant and toddler safety seat. Preferably, when the guide 12 is a slider and the guide part 28 is a slide groove, the shell 20 also includes two inclined parts 29 that are gradually recessed toward the guide part 28 by the two slots 24, the slider, The chute and the inclined part form an automatic guiding and engaging function, that is, the slider will slide freely on any one of the two inclined parts to the chute, and then the locking procedure will be carried out to avoid the two positioning parts 11 from being stuck. Other positions on the base body 2 except for the engaging member 21 , the engaging member 25 and the slot 24 can improve the correctness of operation. Specifically, the inclined portion 29 is a curved structure, an inclined structure, or a combination of a curved structure and an inclined structure, depending on design requirements.

In detail, the engaging part 21 includes a hook part 211 corresponding to any one of the two positioning parts 11, a pivot part 213 pivotally connected to the base body 2, and a link part 212 connected to the link part 22. . Preferably, the hook portion 211 is bent and formed at one end of the pivot portion 213 , and the bending directions of the two hook portions 211 are the same. In this embodiment, the linkage portion 212 is pivotally connected to the linkage member 22 , and the hook portion 211 and the linkage portion 212 are formed at two ends of the pivot portion 213 . Regarding the hook portion 211 corresponding to any one of the two positioning pieces 11, for example, when the hook portion 211 of the engaging piece 21 located at the front end on the left side of the base body 2 is locked into the two positioning pieces 11 When one of the two positioning parts 11 is locked, the infant safety seat seat is in the forward use state. , the infant safety seat seat is in a backward use state, which makes the use range wider.

In essence, the linking part 22 connects the two engaging parts 21 so that the respective pivots of the two engaging parts 21 are synchronized, thereby ensuring the locking and releasing between the infant safety seat seat and the infant safety seat base. Locks can be implemented stably to enhance overall security. Specifically, the linking member 22 selectively drives the two engaging members 21 to pivot synchronously to the locking position in one direction (for example, clockwise direction A) to respectively lock the two positioning members 11, or drives the two engaging members 21 are pivoted synchronously to the unlocking position in the other direction (for example, counterclockwise direction B) to unlock the two positioning members 11 respectively.

Generally, the base of the infant safety seat further includes an operating part 23 which is arranged on the base body 2 and connected to one of the two engaging parts 21 and/or the linking part 22. For example, in this embodiment Among them, the operating piece 23 is located at the front end of the base body 2 and connected to the engaging piece 21 located at the front end on the left side of the base body 2, but the operating piece 23 can also be located at the rear end of the base body 2 and connected to the front end located at the base body 2. The locking piece 21 at the rear end on the left side of the seat body 2 depends on the design requirements. The user operates the operating piece 23 so that the linking piece 22 selectively drives the two locking pieces 21 to pivot in one direction to lock. position to lock the two positioning components 11 respectively, or drive the two engaging components 21 to pivot in the other direction to the unlocking position respectively to unlock the two positioning components 11 respectively. In this way, the whole operation process is simple and convenient, and the structure is simple, and the cooperation is firm and compact.

Preferably, the operating part 23 includes a button part 231 pivotally connected to the base body 2, a driving part 232 connected to the button part 231 and connected to one of the two engaging parts 21 and/or the linkage part 22, and There are two indicating parts 234 showing that the two engaging parts 2 are pivoted to the locked position or the unlocked position. In addition, the shell 20 accommodates the operating member 23 and is provided with a window 27 exposing a part of the operating member 23, that is, the window 27 exposes the indicating portion 234 of the operating member 23, so that the user can easily observe the current state of the infant. The locked and unlocked state between the seat of the safety seat and the base of the infant safety seat. In detail, the indicating portion 234 includes a locking sign 234a that shows that the two engaging parts 21 are pivoted to the locking position respectively. In this embodiment, the locking sign 234a is green, because in the general public's concept, green represents safety; The part 234 also includes a release sign 234b showing that the two engaging parts 21 are pivoted to the release position. In this embodiment, the release sign 234b is red, because in the general public's opinion, red represents danger. In this way, the user can intuitively understand the connection state between the carrier body 1 and the base body 2 , which reduces potential safety hazards and is highly practical. Of course, the window 27 also exposes the button portion 231 of the operating member 23 for the convenience of the user's operation. In addition, the indicating part 234 is substantially formed on the button part 231, thereby simplifying the complexity of the overall mechanism and the number of parts.

In addition, the base of the infant safety seat also includes an elastic member 233 that elastically interferes between the base body 2 and the operating member 23. The elastic member 233 elastically pushes against the operating member 23 so that the linking member 22 has a constant driving force between the two engaging parts. Pieces 21 each pivot to the unlocking position in one direction to lock the two positioning pieces 11 respectively, so as to ensure that the infant safety seat seat and the infant safety seat base maintain a locked state to enhance overall safety and avoid accidents release the lock. Specifically, the elastic member 233 is a spring, torsion spring, rubber or the like.

The following details the process of installing the infant safety seat carrier on the infant safety seat base:

Mainly please refer to FIG. 3 to FIG. 8 , during operation, the user presses the button part 231 in the downward direction P, and the button part 231 overcomes the elastic force of the elastic member 233 and pivots in the base body 2, thereby driving the driving part 232 moves, and the driving part 232 drives one of the two engaging parts 21 connected to it and/or the linking part 22 to move, and drives the two engaging parts 21 to pivot synchronously in one direction (for example, counterclockwise direction B). To the unlocking position, at this time, the unlocking sign 234b of the indicating part 234 is displayed in the window hole 27 to remind the user that the two engaging parts are located at the unlocking position, and the two positioning parts 11 of the infant safety seat seat are correspondingly arranged In the card receiving part 25, the user releases the button part 231, the button part 231 pivots to the original position along the upward direction R under the elastic reset of the elastic part 233, and the two engaging parts 21 face to the other direction (for example Clockwise direction A) respectively pivoting to the locking position synchronously, at this time, the locking sign 234a of the indicating part 234 is displayed in the window hole 27 to remind the user that the two engaging parts are located at the locking position, that is, the two engaging parts 21 have been separated Correspondingly engage the two positioning parts 11, so that the infant safety seat carrier can be installed on the infant safety seat base; if the infant safety seat carrier is detached from the infant safety seat base, just repeat the previous step The step is to make the two engaging parts 21 synchronously pivot to the unlocking position to realize the separation of the infant safety seat carrier and the infant safety seat base, and the operation is simple and convenient.

And when in use, when the automobile is in the process of driving, especially sudden braking occurs or when it is hit, the weight of the connecting piece 22 makes the connecting piece 22 produce under the action of inertia so that the two engaging pieces 21 produce a constant toward one direction ( For example, in the clockwise direction A) the force towards the forward direction F of the trend of each pivoting to the locked position, so that the two corresponding positioning parts 11 can be engaged and fixed more firmly, and the baby safety seat seat can be installed on the Safety features on the base of an infant safety seat.

It should be noted that, in this embodiment, the aforementioned two engaging pieces 21, the linking piece 22, the two holding pieces 25, the supporting piece 26, the guiding piece 12, the guiding portion 28, and the two inclined portions 29, are located on one side of the base body 2, and the other side of the base body 2 is also equipped with two engaging parts 21, a linking part 22, two clamping parts 25, a supporting part of the same or similar structure 26, the guide 12, the guide portion 28, and the two inclined portions 29, so the details will not be repeated.

What is disclosed above is only the embodiment of the present invention, which certainly cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope of the present invention.

Claims (23)

1. An infant safety seat base, suitable for installation of an infant safety seat seat, the infant safety seat seat includes a seat body and two positioning seats that are respectively connected to the seat body and spaced apart from each other parts, characterized in that: the infant safety seat base includes: The base body is used for placing the two positioning parts; two engaging parts, pivotally connected to the base body and spaced from each other so as to correspond to the two positioning parts; and A linkage piece, connecting the two engagement pieces so that the respective pivoting directions of the two engagement pieces are the same, and the linkage piece selectively drives the two engagement pieces to pivot in one direction Turn to the locking position to lock the two positioning parts respectively, or drive the two engaging parts to pivot in the other direction to the unlocking position respectively to unlock the two positioning parts; The engaging part includes a buckle corresponding to any one of the two positioning parts, and the opening direction of the hook is away from the forward direction of the vehicle. When the vehicle brakes and/or decelerates, the linked Under the action of inertia of the parts, the two engaging parts have an action tendency to pivot toward the locked position; The base of the infant safety seat further includes an operating part arranged on the base body and connected to one of the two engaging parts and/or the linking part, and the operating part is operated to make The linking part selectively drives the two engaging parts to pivot to the locking position to respectively lock the two positioning parts, or drives the two engaging parts to pivot to the release position respectively. lock position to unlock the two positioning parts respectively; the operating part includes a button part pivotally connected to the base body and one of the button part and the two engaging parts connected to the button part And/or the driving part of the linkage. 2. The base of an infant safety seat according to claim 1, wherein the base body includes two fittings respectively matched with the two engaging parts and spaced apart from each other for the placement of the two positioning parts respectively. Two card receiving parts, the linking part selectively drives the two engaging parts to pivot to the locking position and respectively cooperates with the two card receiving parts to lock the two positioning parts respectively , or drive the two engaging members to pivot to the unlocking position and respectively cooperate with the two engaging members to release the locks of the two positioning members respectively. 3 . The infant safety seat base as claimed in claim 1 , wherein the base body includes support members for the two engaging members to be respectively pivotally connected to. 4 . 4. The base of an infant safety seat according to claim 1, wherein the base body includes a shell for accommodating the two engaging elements and the linking element, and the shell is provided with The two slots are respectively matched with the two engaging parts and spaced apart from each other so as to allow the two positioning parts to pass through, and the linking part selectively drives the two engaging parts to pivot to The locking position closes the respective opening edges of the two slots to respectively lock the two positioning parts, or drives the two engaging parts to pivot to the unlocking position and open respectively. Part of the opening edge of each of the two slots releases the locking of the two positioning pieces respectively. 5. The infant safety seat base according to claim 4, wherein the infant safety seat seat further comprises a guide member connected to the seat body and located between the two positioning members , the shell part includes a guiding part corresponding to the guiding part and located between the two slots. 6 . The infant safety seat base as claimed in claim 5 , wherein one of the guide piece and the guide portion is a slider, and one of the guide piece and the guide portion The other is a chute. 7. The infant safety seat base as claimed in claim 6, wherein when the guide part is a slider and the guide part is a chute, the shell part further includes the two The two inclined parts of the slot are gradually recessed towards the slide groove respectively. 8. The infant safety seat base according to claim 7, wherein the inclined portion is a curved structure or an inclined structure. 9. The base of an infant safety seat according to claim 1, wherein the engaging part further includes a pivot part pivotally connected to the base body and a linkage part connected to the linkage part. department. 10 . The infant safety seat base as claimed in claim 9 , wherein the hook portion is bent and formed at one end of the pivot portion. 11 . 11. The infant safety seat base as claimed in claim 10, wherein the bending directions of the two hook portions are the same. 12 . The infant safety seat base as claimed in claim 9 , wherein the linkage portion is pivotally connected to the linkage member. 13 . 13 . The infant safety seat base as claimed in claim 9 , wherein the hook portion and the linkage portion are formed at both ends of the pivot portion. 14 . 14 . The infant safety seat base as claimed in claim 1 , wherein the linkage member connects the two engaging members so that the respective pivots of the two engaging members are synchronized. 15 . 15. The base of an infant safety seat according to claim 1, wherein the base body includes a shell for accommodating the operating element, and the shell is provided with a window exposing a part of the operating element hole. 16 . The infant safety seat base as claimed in claim 1 , wherein the operating member includes an indicator showing that the two engaging members are pivoted to the locking position or the unlocking position. 17 . 17 . The base of an infant safety seat as claimed in claim 16 , wherein the indicating portion includes a locking sign showing that each of the two engaging members is pivoted to the locking position. 18 . 18. The infant safety seat base as claimed in claim 17, wherein the locking sign is green. 19 . The base of an infant safety seat as claimed in claim 16 , wherein the indicating portion includes a release sign indicating that each of the two engaging parts has pivoted to the release position. 19 . 20. The infant safety seat base as claimed in claim 19, wherein the release sign is red. 21. The infant safety seat base according to claim 1, characterized in that: the infant safety seat base further includes an elastic member that elastically interferes between the base body and the operating member, so The elastic member elastically pushes against the operating member so that the linking member has a tendency to drive the two engaging members to pivot to the unlocking position and respectively lock the two positioning members. 22. An infant safety seat device, comprising an infant safety seat seat, the infant safety seat seat includes a seat body and two positioning parts respectively connected to the seat body and spaced apart from each other, its features In that: the infant safety seat device further includes the infant safety seat base as claimed in any one of claims 1 to 21, the carrier body is connected to the infant safety seat through the two positioning pieces. Chair base connection. 23. The infant safety seat device according to claim 22, wherein the two engaging parts and the linking part are located on one side of the base body.