CN110116661B - Child safety seat base and child safety seat - Google Patents

Abstract

The invention discloses a base of a child safety seat, which comprises a base body, and a rebound protection device, wherein the rebound protection device at least comprises a support piece movably arranged on the base body, the support piece is provided with a folding state and an unfolding state, and when the support piece is in the folding state, the support piece is accommodated in the base body; when the supporting piece is in an open state, the supporting piece is opened relative to the base body and at least one part of the supporting piece extends out of the rear of the base body; the rebound protection device further comprises an ejection mechanism for urging the support member to automatically transition from the stowed condition to the open condition and secure the support member in the open condition. The child safety seat comprising the base of the child safety seat can play a role in rebound protection when being installed and used in the front-back direction.

Description

Child safety seat base and child safety seat

Technical Field

The invention relates to a child safety seat base and a child safety seat comprising the base.

Background technique

The child safety seat in the prior art (such as announcement number WO2018050576A1) is provided with a rebound protection device, which includes a gravity hammer and a support member, which are buckled with a lock hook. The entire rebound protection device is installed on the backrest of the child safety seat. When a collision occurs, the gravity hammer rotates around the rotation axis due to inertia, driving the lock hook to unlock, and the support member partially extends out of the rear surface of the backrest of the child safety seat and supports the car seat to prevent displacement of the child's head during rebound. Since the rebound protection device is arranged at the rear of the backrest, only when the child safety seat is installed forward can the support member rest on the backrest of the car seat after the car is hit, thereby playing a rebound protection role. When the child safety seat is installed rearward, the support member cannot rest on the backrest of the car seat, thereby playing a supporting and rebound protection role.

Summary of the invention

The purpose of the present invention is to overcome the shortcomings of the prior art and to provide a base for a child safety seat. When the child safety seat including the base is installed and used in a front-to-back direction, the rebound protection device can play a rebound protection role.

To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a base of a child safety seat, including a base body, characterized in that: the base also includes a rebound protection device, the rebound protection device at least includes a support member movably arranged on the base body, the support member has a retracted state and an open state, when the support member is in the retracted state, the support member is accommodated in the base body; when the support member is in the open state, the support member is open relative to the base body and at least a part of it extends out of the rear of the base body; the rebound protection device also includes a pop-up mechanism for driving the support member to automatically switch from the retracted state to the open state and fix the support member in the open state.

Furthermore, the rebound protection device also includes a support member rotation shaft, and the support member is rotatably connected to the base body via the support member rotation shaft.

Further, the pop-up mechanism includes a slider, a slide groove cooperating with the slider, a connecting rod and a connecting rod rotating shaft, one end of the slider extends to form a connecting rod, the connecting rod and the support member are rotatably connected through the connecting rod rotating shaft, and the slide groove is arranged on the base of the child safety seat; or the connecting rod and the base of the child safety seat are rotatably connected through the connecting rod rotating shaft, the slide groove is arranged on the support member, and during the conversion process between the folded state and the opened state, the slider slides in the slide groove.

Further, the slide groove includes an upper groove end and a lower groove end. In the retracted state, the slider abuts against the lower groove end, and in the open state, the slider abuts against the upper groove end; or in the retracted state, the slider abuts against the upper groove end, and in the open state, the slider abuts against the lower groove end.

Furthermore, the pop-up mechanism also includes an elastic member for driving the support member to open relative to the base body.

Furthermore, the elastic member is a torsion spring.

Furthermore, the base of the child safety seat also includes a locking device. In the locked state, the support member is accommodated in the base body and the positions of the support member and the base body are fixed. In the unlocked state, the support member has the stowed state and the opened state, and can be freely transformed between the stowed state and the opened state.

Furthermore, the locking device includes a slot arranged on one of the two components of the support member and the base body, and a pin arranged on the other component and cooperating with the slot. In the locked state, the pin is locked in the slot, and in the unlocked state, the pin is separated from the slot.

Another object of the present invention is to provide a child safety seat comprising the above child safety seat base.

In order to achieve the above object, the technical solution adopted by the present invention is: a child safety seat, comprising the base of the child safety seat mentioned above.

Another object of the present invention is to provide a child safety seat comprising the above-mentioned child safety seat base, wherein the base of the child safety seat has a rear surface. When the child safety seat is in normal use, the support member in the rebound protection device can automatically extend out of the rear surface and support on the car seat, thereby playing a rebound protection role.

To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a child safety seat, the child safety seat includes the base of the child safety seat mentioned above, the base of the child safety seat has a rear surface, when the base of the child safety seat is installed on the car seat, the rear surface is in close contact with the car seat, after the base of the child safety seat moves forward due to inertia, a gap is formed between the rear surface and the car seat, the support member is open relative to the base of the child safety seat and at least a portion extends out of the rear surface, and the support member is supported on the car seat.

Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: In the present invention, after the car is hit, the base body is displaced forward due to inertia, a gap is generated between the base body and the car seat, the support member automatically opens relative to the base body and one end of the support member is against the car seat to prevent the child safety seat from rebounding. Since the rebound protection device is installed on the base of the child safety seat, it can play a rebound protection role when the child safety seat is installed and used in the front and back directions.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a child safety seat of the present invention installed on a car seat.

Accompanying drawing 2 is a cross-sectional view of Accompanying drawing 1.

FIG3 is an enlarged view of part A of FIG2 .

FIG. 4 is a schematic structural diagram of a child safety seat support member of the present invention in an open state.

Accompanying drawing 5 is a cross-sectional view of Accompanying drawing 4.

FIG. 6 is an enlarged view of part B of FIG. 5

FIG. 7 is a partial schematic diagram of the rebound protection device in the retracted state and the locking device in the locked state.

FIG8 is a cross-sectional view taken along the C direction in FIG7 .

FIG. 9 is a partial schematic diagram of the rebound protection device in the deployed state and the locking device in the unlocked state.

FIG10 is a cross-sectional view of the rebound protection device in FIG8 in an open state.

The numbers in the figure are:

1. Base body; 2. Rebound protection device; 201. Support member; 202. Support member rotation axis; 3. Pop-up mechanism; 301. Slider; 302. Slide groove; 303. Connecting rod; 304. Connecting rod rotation axis; 305. Upper groove end; 306. Lower groove end; 307. Torsion spring; 4. Locking device; 401. Slot; 402. Pin; 5. Rear surface; 6. Car seat.

Detailed ways

The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1-10, the base of the child safety seat in this embodiment includes a base body 1, a rebound protection device 2 and a rear surface 5. The rebound protection device 2 at least includes a support member 201 and a support member rotation shaft 202 movably arranged on the base body 1. The support member 201 is rotatably connected to the base body 1 through the support member rotation shaft 202. The support member 201 has a retracted state and an open state. When the support member 201 is in the retracted state, the support member is accommodated in the base body 1; when the support member 201 is in the open state, the support member 201 is open relative to the base body 1 and at least a portion of it extends out of the rear surface 5; the rebound protection device 2 also includes a pop-up mechanism 3 for driving the support member 201 to automatically switch from the retracted state to the open state and fix the support member 201 in the open state.

Specifically, the pop-up mechanism 3 includes a slider 301, a slide groove 302 matched with the slider 301, a connecting rod 303, a connecting rod rotating shaft 304 and an elastic member. One end of the slider 301 extends to form the connecting rod 303. In this embodiment, the elastic member is a torsion spring 307, which is sleeved on the connecting rod rotating shaft 304. One end of the torsion spring 307 abuts on the support member 201, and the other end abuts on the connecting rod 303, which is used to drive the support member 201 to open relative to the base body 1. The connecting rod 303 is rotatably connected to the support member 201 through the connecting rod rotating shaft 304, and the slide groove 302 is set on the base of the child safety seat; the connecting rod 303 can also be rotatably connected to the base of the child safety seat through the connecting rod rotating shaft 304, and the slide groove 302 is set on the support member 201. In the process of switching between the stowed state and the opened state, the slider 301 slides in the slide groove 302.

Specifically, in an embodiment of the present invention, the support member rotation axis 202 is arranged below the pop-up mechanism 3, and the slide groove 302 includes an upper groove end 305 and a lower groove end 306. As shown in Figure 8, in the retracted state, the slider 301 abuts against the lower groove end 306. As shown in Figures 6 and 10, in the open state, the slider 301 abuts against the upper groove end 305; of course, the support member rotation axis 202 can also be arranged above the pop-up mechanism 3, then in the retracted state, the slider 301 abuts against the upper groove end 305, and in the open state, the slider 301 abuts against the lower groove end 306.

Furthermore, the base of the child safety seat also includes a locking device 4, which includes a slot 401 arranged on one of the two components of the support member 201 and the base body 1, and a pin 402 arranged on the other component and matched with the slot 401, as shown in Figures 7-8. In the locked state, the pin 402 is clamped in the slot 401, the support member 201 is accommodated in the base body 1 and the positions of the support member 201 and the base body 1 are fixed. In the unlocked state, the pin 402 is separated from the slot 401, and the support member 201 has a folded state and an opened state, and can be freely transformed between the folded state and the opened state.

The working principle of the present invention is that, under normal use, the base of the child safety seat is installed on the car seat 6, the rear surface 5 is in close contact with the car seat 6, and the locking device 4 is in an unlocked state. After the base of the child safety seat moves forward under the action of inertia, a gap is formed between the rear surface 5 and the car seat 6, and the support member 201 is opened relative to the base of the child safety seat and at least a part of it extends out of the rear surface 5. The support member 201 is supported on the car seat 6 to play a rebound support role.

By using the technical solution of the above embodiment, after the car is hit, the base body 1 is displaced forward due to inertia, a gap is generated between the base body 1 and the car seat 6, and the support member 201 automatically opens relative to the base body 1 and one end thereof abuts against the car seat 6 to prevent the child safety seat from rebounding. Since the rebound protection device is installed on the base of the child safety seat, it can play a rebound protection role when the child safety seat is installed and used in the front and back directions. By setting the pop-up mechanism, the support member 201 can be driven to automatically open relative to the rear surface 5 after the car is hit, and the support member 201 can be fixed in the open state. By setting the locking device, the child safety seat can be better stored when not in use.

The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A base of a child safety seat, comprising a base body, characterized in that: the base also includes a rebound protection device, the rebound protection device at least includes a support member movably arranged on the base body, the rebound protection device also includes a support member rotation shaft, the support member is rotatably connected to the base body through the support member rotation shaft, the support member has a retracted state and an open state, when the support member is in the retracted state, the support member is accommodated in the base body; when the support member is in the open state, the support member is open relative to the base body and at least a part of it extends out of the rear of the base body; the rebound protection device also It includes a pop-up mechanism for driving the support member to automatically switch from the stowed state to the opened state and fix the support member in the opened state, the pop-up mechanism includes a slider, a slide groove cooperating with the slider, a connecting rod and a connecting rod rotating shaft, one end of the slider extends to form a connecting rod, the connecting rod and the support member are rotatably connected through the connecting rod rotating shaft, and the slide groove is arranged on the base of the child safety seat; or the connecting rod and the base of the child safety seat are rotatably connected through the connecting rod rotating shaft, the slide groove is arranged on the support member, and during the conversion between the stowed state and the opened state, the slider slides in the slide groove. 2. The base of the child safety seat according to claim 1, characterized in that: the slide groove comprises an upper groove end and a lower groove end; The support member rotation axis is arranged below the pop-up mechanism, the slider abuts against the lower slot end in the retracted state, the slider abuts against the upper slot end in the opened state, and the connecting rod rotation axis is located at the lower side of the upper slot end in the vertical direction; Alternatively, the support member rotation axis is arranged above the pop-up mechanism, and in the retracted state, the slider abuts against the upper groove end, and in the opened state, the slider abuts against the lower groove end. 3 . The base of the child safety seat according to claim 1 , wherein the ejection mechanism further comprises an elastic member for driving the support member to open relative to the base body. 4 . The base of the child safety seat according to claim 3 , wherein the elastic member is a torsion spring. 5. The base of the child safety seat according to claim 1 is characterized in that: the base of the child safety seat also includes a locking device, in a locked state, the support member is accommodated in the base body and the position of the support member and the base body are fixed, in an unlocked state, the support member has the stowed state and the opened state, and can freely switch between the stowed state and the opened state. 6. The base of a child safety seat according to claim 5 is characterized in that: the locking device includes a slot arranged on one of the two components of the support member and the base body, and a pin arranged on the other component and matching with the slot, wherein in the locked state, the pin is locked in the slot, and in the unlocked state, the pin is separated from the slot. 7. A child safety seat, characterized in that it comprises the base of the child safety seat according to any one of claims 1 to 6. 8. A child safety seat, characterized in that: the child safety seat comprises a base of the child safety seat as described in any one of claims 1 to 6, the base of the child safety seat has a rear surface, when the base of the child safety seat is installed on a car seat, the rear surface is in close contact with the car seat, after the base of the child safety seat moves forward due to inertia, a gap is formed between the rear surface and the car seat, the support member is open relative to the base of the child safety seat and at least a portion extends out of the rear surface, and the support member is supported on the car seat.