CN218112427U - Child safety seat - Google Patents

Abstract

The application discloses child safety seat belongs to child seat technical field for provide one kind and adjust the operation more convenient, more stable rotation regulation mechanism, including seat portion, base, rotary disk and an at least first stop gear, the rotary disk rotationally sets up on the base, and seat portion is connected with the rotary disk, and first stop gear is used for locking or unblock the rotary disk for when the rotation of base, first stop gear are configured into rotary disk or base and are greater than the default to first stop gear's circumference effort, first stop gear is switched to the unblock state by locking state. This practicality is through add the rotatory spacing round pin structure of elastic on locking mechanical system's basis, has reduced rocking of rotatory seat behind the locking mechanical system unblock, and needs certain power just can extrude rotatory spacer pin for the seat unblock completely under the support of elasticity and rotatory, has improved the stability of seat at the rotation regulation process.

Description

Child safety seat

Technical Field

The application relates to the technical field of child seats, in particular to a child safety seat.

Background

The riding safety of vehicles is always a concern for manufacturers and consumers, at present, standard safety belts and safety airbags in the vehicles can improve the body safety of passengers to a great extent, but for infants with smaller sizes, the safety designs are difficult to provide good protection effects, so that a separate child safety seat needs to be additionally arranged on the vehicle to provide enough protection for the infants.

The existing child safety seat is generally designed with an adjusting mechanism for improving the use flexibility, the most commonly used adjusting mechanism is a rotary adjusting mechanism capable of changing the orientation of the seat, but the existing rotary adjusting mechanism has the following defects: for example, the seat can be adjusted in a troublesome manner when the seat stays at a certain specific angle, the seat can be rotated only by releasing the locking state during each adjustment, and the seat can be kept stable only by resetting the locking mechanism after the rotation is finished.

Disclosure of Invention

The application aims to provide a rotary adjusting mechanism which is more convenient and stable in adjusting operation.

To achieve the above objects, the present application provides a child safety seat: the seat comprises a seat part, a base, a rotating disk and at least one first limiting mechanism, wherein the rotating disk is rotatably arranged on the base, the seat part is connected with the rotating disk, the first limiting mechanism is movably arranged between the rotating disk and the base, the first limiting mechanism is configured to be in a locking state and an unlocking state when the circumferential acting force of the rotating disk or the base on the first limiting mechanism is greater than a preset value, and the seat part can only possibly rotate when the applied circumferential acting force is greater than a certain value.

Preferably, the first limiting mechanism includes a limiting member, a return spring and a limiting groove, the limiting member is movably disposed on the rotating disc or the base, the limiting groove is disposed on the base or the rotating disc opposite to the limiting member, in the locking state, a limiting end of the limiting member is located in the limiting groove, in the unlocking state, the limiting member is separated from the limiting groove, the return spring is used for keeping the limiting member in the locking state, and when the rotating disc has a rotating trend, an elastic force of the return spring generates a component force parallel to the circumferential rotation direction to stop the rotating disc from rotating, thereby achieving elastic locking of the rotating disc.

Preferably, the limiting end has a side surface and a top surface, the side surface extends to the top surface in an inclined manner, the limiting groove has a guide inclined surface fitted with the side surface, so that when a circumferential acting force is generated between the limiting groove and the limiting member, the limiting groove has a component force for driving the limiting end to be away from the limiting groove, and the end of the limiting member is disengaged from the limiting groove under the action of the component force to enter an unlocking state from a locking state.

Preferably, the base has a mounting groove for mounting the limiting member, the mounting groove has an upward opening, the limiting member is vertically movably disposed in the mounting groove, the return spring is disposed between the bottom of the limiting member and the bottom surface of the mounting groove, the limiting groove is formed on the bottom surface of the rotating disk, and the opening of the limiting groove faces downward, so that the end of the limiting member is better engaged with the limiting groove.

Preferably, the number of the limiting members is at least one, the number of the limiting grooves is also at least one, the number of the limiting grooves is greater than or equal to the number of the limiting members, the number of the limiting members is usually one, two, three or four, the number of the limiting grooves is four, and the four limiting grooves are arranged at equal intervals along the rotation circumference of the first limiting mechanism, so that the rotating disk can stably stay at 0 °/360 °, 90 °, 280 ° and 270 °.

Preferably, the rotating disc locking mechanism further comprises a second limiting mechanism, the second limiting mechanism is movably arranged between the rotating disc and the base and is suitable for changing a locking state between the rotating disc and the base, the rotating disc cannot rotate when any force is applied to the rotating disc in the locking state, and the rotating disc can rotate under the action of a circumferential force only in an unlocking state.

Preferably, the second limiting mechanism comprises a locking piece and a locking groove, the locking piece is movably arranged on the rotating disc or the base, the locking groove is arranged on the base or the rotating disc opposite to the locking piece, and the rotating disc is locked with the base when the end part of the locking piece is inserted into the locking groove; when the end part of the locking piece is pulled out of the locking groove, the rotating disc and the base are unlocked to form a hard locking mechanism.

Preferably, the rotating disc has a sliding groove for mounting the locking member, the extension line of the sliding groove is perpendicular to the rotation circumference of the rotating disc, the locking member is slidably disposed in the sliding groove, and the locking groove is formed on the inner wall of the base facing the rotating disc, so that the locking member can be better matched with the locking groove.

Compared with the prior art, the beneficial effect of this application lies in:

(1) By designing the elastic resetting limiting part structure, when the rotating disc connected with the seat rotates actively, the limiting part can retract to relieve the limiting effect on the rotating disc, and the rotating disc can not be locked again until the rotating disc rotates to the next limiting position, so that unlocking and re-locking operations are not required during each adjustment, and the smoothness and convenience during rotary adjustment are improved;

(2) Only locking mechanical system has usually between traditional children's seat and the base, the seat can keep steadily for the base when locking state, nevertheless the seat will rock for the base is controlled to the base when the unblock, and add elastic rotatory spacing pin structure on locking mechanical system's basis, the rocking of rotatory seat after the locking mechanical system unblock has been reduced, and need certain power just can extrude rotatory spacing pin, make the seat unblock completely and rotatory under the support of elasticity, whole seat in the stability of rotation regulation process has been improved.

Drawings

FIG. 1 is an exploded view of a rotating base portion of the child safety seat;

FIG. 2 is a schematic bottom view of the rotary plate of the child safety seat;

FIG. 3 is a top view of the rotating base of the child safety seat in a first state;

FIG. 4 is a cross-sectional view of the child safety seat taken at D-D of FIG. 3;

FIG. 5 is an enlarged view of a portion of the child safety seat at A of FIG. 4;

FIG. 6 is an enlarged view of a portion of the child safety seat at B of FIG. 4;

FIG. 7 is a cross-sectional view of the child safety seat taken in an unlocked state at D-D of FIG. 3;

FIG. 8 is an enlarged view of a portion of the child safety seat at C of FIG. 7;

FIG. 9 is a top view of the pivotal base of the child safety seat in a second state;

fig. 10 is a plan sectional view of the child safety seat of fig. 9.

In the figure: 1. a base; 101. mounting grooves; 102. a locking groove; 2. rotating the disc; 201. a limiting groove; 202. a guide slope; 3. a limiting member; 301. a limiting end; 4. a return spring; 5. a locking member.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The child safety seat shown in fig. 1-10 comprises a seat portion, a base 1, a rotating disk 2 and at least one first limiting mechanism, wherein the first limiting mechanism is structurally distributed on the base 1 and the rotating disk 2, the base 1 and the rotating disk 2 are limited by a matching structure in the first limiting mechanism, the rotating disk 2 is rotatably arranged on the base 1, the seat portion is connected with the rotating disk 2, so that the seat portion can rotate relative to the base 1, the first limiting mechanism is movably arranged between the rotating disk 2 and the base 1, the first limiting mechanism is configured to be in a locking state and an unlocking state when circumferential acting force of the rotating disk 2 or the base 1 on the first limiting mechanism is greater than a preset value, the first limiting mechanism moves from the locking state to the unlocking state, the first limiting mechanism in the locking state can move from a reverse locking state under the condition of no circumferential acting force, and the first limiting mechanism in the locking state can only break away from the locking state when the circumferential acting force is applied.

The first limiting mechanism comprises a limiting part 3, a return spring 4 and a limiting groove 201, the end part of the limiting part 3 can be pushed into and kept in the limiting groove 201 by the return spring 4, the limiting part 3 can be movably arranged on the rotating disc 2 or the base 1, the limiting groove 201 and the limiting part 3 are oppositely arranged on the base 1 or the rotating disc 2, and when the limiting part 3 is arranged on the rotating disc 2, the limiting groove 201 can only be arranged on the base 1 to realize the matching with the end part of the limiting part 3; when the limiting member 3 is disposed on the base 1, the limiting groove 201 can be disposed on the rotating disc 2 only to achieve the engagement with the end of the limiting member 3.

When the locking state is performed, the limiting end 301 of the limiting member 3 is located in the limiting groove 201, when the unlocking state is performed, the limiting member 3 is separated from the limiting groove 201, the return spring 4 is used for keeping the limiting member 3 in the locking state, the limiting end 301 has a side surface and a top surface, the side surface extends to the top surface in an inclined manner, the limiting groove 201 has a guide inclined surface 202 matched with the side surface, so that when a circumferential acting force is generated between the limiting groove 201 and the limiting member 3, the component force drives the limiting end 301 to be away from the limiting groove 201, and the specific action process is that when the limiting member 3 tends to rotate relative to the limiting groove 201, the pressure between the limiting end 301 and the limiting groove 201 can be decomposed into a force perpendicular to the rotation tangential direction, so that the limiting member 3 can move towards the direction away from the limiting groove 201 by overcoming the elastic force of the spring; but also can be decomposed into a force parallel to the tangential direction of rotation, so that the limiting piece 3 and the limiting groove 201 are staggered along the direction of rotation.

Generally, the mounting groove 101 for mounting the limiting member 3 is disposed on the base 1, the opening of the mounting groove 101 is upward, so that the injection molding process of the base 1 is simpler, and the mounting groove can also be perpendicular to the contact surface between the rotating disc 2 and the base 1, so that the end of the limiting member 3 can be more stably inserted into the limiting groove 201, the limiting member 3 can slide along the inner wall of the mounting groove 101 to form a telescopic structure, the return spring 4 is disposed between the bottom of the limiting member 3 and the bottom surface of the mounting groove 101 to provide an elastic force for the limiting member 3 to slide out of the limiting groove 201, the return spring 4 makes the limiting member 3 have a tendency of extending out of the mounting groove 101, the limiting groove 201 is formed on the bottom surface of the rotating disc 2, the opening of the limiting groove 201 faces downwards and can be just matched with the end part of the limiting part 3, the number of the limiting part 3 and the limiting groove 201 is at least one, at least one limiting part 3 is consistent with the number of the limiting groove 201 at most, the situation that the limiting part 3 is not matched with the limiting groove 201 in a locking state is avoided, the number of the limiting grooves 201 is generally limited to four, the four limiting grooves 201 are arranged at equal intervals along the rotating circumference of the first limiting mechanism, and one to four limiting parts 3 can enable the rotating disk 2 to stay in the direction of 0 degree or 360 degrees, 90 degrees, 180 degrees, 270 degrees and the like, which is convenient for parents to take care of infants.

The locking mechanism comprises a locking piece 5 and a locking groove 102, the locking piece 5 is movably arranged on the rotary disc 2 or the base 1, the locking groove 102 is arranged on the base 1 or the rotary disc 2 opposite to the locking piece 5, the same principle as the first limiting mechanism is that the locking piece 5 and the locking groove 102 are required to be respectively arranged on the base 1 and the rotary disc 2 to play a role, and the rotary disc 2 is locked with the base 1 when the end part of the locking piece 5 is inserted into the locking groove 102; when the end of the locking piece 5 is pulled out of the locking groove 102, the rotating disc 2 is unlocked with the base 1, and when the locking piece 5 is in a locking state, the rotating disc 2 cannot move no matter how the rotating disc 2 is rotated; when the locking member 5 is in the unlocked state, as long as the circumferential torque applied to the rotary plate 2 is greater than the preset value, the limiting member 3 is disengaged from the limiting groove 201 into the fully unlocked movement range, and the rotary plate 2 can freely rotate relative to the base 1.

Generally, the rotating disc 2 is provided with a sliding groove for installing the locking piece 5, the extension line of the sliding groove is perpendicular to the rotation circumference of the rotating disc 2, only after the locking piece 5 is inserted into the locking groove 102, the locking piece 5 cannot be separated from the locking groove 102 due to the rotation component force, the locking piece 5 is vertically inserted into the locking groove 102 and cannot be acted by the component force consistent with the extension direction of the locking piece 5 when being subjected to the rotation action, the stability after the second limiting mechanism is locked is ensured, the locking piece 5 is slidably arranged in the sliding groove, no spring structure is arranged between the locking piece 5 and the rotating disc 2, the locking piece 5 only has two states, namely a locking state and an unlocking state, and cannot be spontaneously converted into the other state after entering one state, the locking groove 102 is formed in the inner wall of the base 1 opposite to the rotating disc 2, and the end part of the locking piece 5 is conveniently matched with the locking piece to realize the motion limitation of the rotating disc 2 and the base 1.

This children's safety seat's limit function realizes the principle: the limiting function of the base 1 of the child safety seat is realized through two sets of limiting mechanisms, wherein the second limiting mechanism is a rigid limiting mechanism and only uses two states of locking and unlocking, when the second limiting mechanism is in the locking state, the rotating disc 2 cannot rotate at all, only when the rotating disc 2 is in the unlocking state, the rotating disc 2 is possible to rotate, the first limiting mechanism is an elastic limiting mechanism and has locking and unlocking states and intermediate states between the locking state and the unlocking state, when the second limiting mechanism is in the unlocking state, the first limiting mechanism can play a role, when the second limiting mechanism is in the normal state, the second limiting mechanism is in the locking state, only when the rotating disc 2 is subjected to circumferential rotation action larger than a preset value, the limiting piece 3 can be separated from the limiting groove 201 under the action of component force along the extension direction, the rotating disc 2 is enabled to enter the completely unlocking state, the rotating disc 2 can freely rotate relative to the base 1 after entering the completely unlocking state, but once the rotating disc 2 loses the external force action, the rotating disc 2 can automatically approach to the locking state until the limiting piece 3 is embedded into the limiting groove again and enters the limiting state, and the first limiting mechanism can be in the driving direction of a vehicle or the driving direction of 90 degrees or the child seat can be taken by a parent or a child to protect the child.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (9)

1. A child safety seat, characterized by: the rotating disc is rotatably arranged on the base, the seat portion is connected with the rotating disc, the first limiting mechanism is used for locking or unlocking the rotating disc to rotate relative to the base, and the first limiting mechanism is configured to be switched from a locking state to an unlocking state when the circumferential acting force of the rotating disc or the base on the first limiting mechanism is larger than a preset value.

2. The child safety seat according to claim 1, wherein: the first limiting mechanism comprises a limiting part, a reset spring and a limiting groove, the limiting part is movably arranged on the rotating disc or the base, the limiting groove and the limiting part are oppositely arranged on the base or the rotating disc, the limiting end of the limiting part is located in the limiting groove in the locking state, the limiting part is separated from the limiting groove in the unlocking state, and the reset spring is used for enabling the limiting part to be kept in the locking state.

3. The child safety seat according to claim 2, wherein: the limiting end is provided with a side face and a top face, the side face extends to the top face in an inclined mode, the limiting groove is provided with a guide inclined face matched with the side face, and therefore when circumferential acting force is generated between the limiting groove and the limiting part, the guide inclined face has component force for driving the limiting end to be far away from the limiting groove.

4. The child safety seat according to claim 2, wherein: the base is provided with a mounting groove for mounting the limiting part, the opening of the mounting groove faces upwards, the limiting part can be vertically movably arranged in the mounting groove, the reset spring is arranged between the bottom of the limiting part and the bottom surface of the mounting groove, the limiting groove is formed in the bottom surface of the rotating disc, and the opening of the limiting groove faces downwards.

5. A child safety seat according to any of claims 2 to 4, wherein: the number of the limiting pieces is at least one, the number of the limiting grooves is also at least one, and the number of the limiting grooves is larger than or equal to the number of the limiting pieces.

6. The child safety seat according to claim 5, wherein: the number of the limiting parts is one, the number of the limiting grooves is four, and the four limiting grooves are arranged at equal intervals along the rotating circumference of the first limiting mechanism.

7. The child safety seat according to claim 1, wherein: the rotary disc type locking device further comprises a second limiting mechanism, wherein the second limiting mechanism is movably arranged between the rotary disc and the base and is suitable for changing the locking state between the rotary disc and the base.

8. The child safety seat according to claim 7, wherein: the second limiting mechanism comprises a locking piece and a locking groove, the locking piece is movably arranged on the rotating disc or the base, the locking groove is arranged on the base or the rotating disc opposite to the locking piece, and the rotating disc is locked with the base when the end part of the locking piece is inserted into the locking groove; when the end part of the locking piece is pulled out of the locking groove, the rotating disc is unlocked with the base.

9. The child safety seat according to claim 8, wherein: the rotating disc is provided with a sliding groove for mounting the locking piece, the extension line of the sliding groove is perpendicular to the rotating circumference of the rotating disc, the locking piece is slidably arranged in the sliding groove, and the locking groove is formed in the inner wall, facing the rotating disc, of the base.

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