CN220555322U - Turnover locking mechanism for child safety heightening pad - Google Patents

Abstract

The utility model discloses a turnover locking mechanism of a child safety heightening pad, which comprises a heightening pad body, wherein a horizontal turnover shaft is arranged at the rear part of the heightening pad body, the horizontal turnover shaft is arranged along the left and right directions of the heightening pad body, the heightening pad body is rotationally assembled with the horizontal turnover shaft, and two ends of the horizontal turnover shaft are respectively fixedly connected with a standard interface part of a safety seat; a plurality of lock holes are formed in the horizontal overturning shaft, and a movable lock pin is assembled on the heightening pad body and faces the horizontal overturning shaft; an unlocking operation piece is arranged on the heightening pad body and connected with the movable lock pin, so that the movable lock pin can extend into/out of any lock hole. The child safety heightening pad has the remarkable effects of being capable of rapidly, conveniently and stably locking/unlocking the child safety heightening pad before and after overturning, and being simple and effective in structure and capable of ensuring that the heightening pad is stably in different use states.

Description

Turnover locking mechanism for child safety heightening pad

Technical Field

The utility model relates to a child safety seat, in particular to a child safety heightening pad.

Background

The automobile safety belt is designed according to the height and the body shape of an adult, and the automobile safety belt can be used by children only with the height of more than 1.4m (about 12 years old) due to the height. For this purpose, the child safety seats of Group23 are commercially available, usually for children aged 3-12 years, which are converted into child seats by adding the child seats to the original adult seats. The child safety seat has the main purpose of raising the sitting position of the child and avoiding the seat belt from tying the neck and the abdominal cavity. The Group23 child safety seats come in a variety of forms, generally classified as highback booster seats, low back booster cushions, and single base booster cushions, wherein:

the high back heightening seat is provided with a headrest and side wings besides a heightening cushion for lifting the riding position of the child, the opposite sides of the high back heightening seat are bumped with better protection effects, and the product is authenticated by i-Size, so that the high back heightening seat has higher safety and riding comfort; but the price is more expensive, the weight (about 8-9 Kg) and the volume of the product are larger, and the occupied space in the vehicle is more; especially, the disassembly and assembly switching between the adult riding position and the child riding position are time-consuming and labor-consuming.

The product of the low back heightening pad is relatively light (about 5 Kg), comprises the heightening pad for lifting the riding position of children and the lumbar support, thus having certain comfort, smaller volume, less occupied space in a vehicle and relatively low price; but it does not have side protection and i-Size authentication. And the short back heightening pad also occupies an adult seat after being installed, so that the disassembly and assembly switching between the adult seat and the child seat are time-consuming and labor-consuming.

The single-base heightening pad is very light (2-3 Kg), and the main body of the single-base heightening pad is a heightening pad for lifting the sitting position of a child and is connected with a car seat through a standard interface; the single-base heightening pad has the advantages of smaller volume, less occupied space in the vehicle and very low price; but it also does not have side protection and i-Size authentication, and is less comfortable without lumbar support. For the position of the single-base heightening pad, the higher riding position is lifted, so that the adult riding is inconvenient, and the single-base heightening pad needs to be disassembled and assembled when the adult riding position and the child riding position are switched.

Therefore, the existing child safety seat has the technical problem that after the child safety seat occupies an adult sitting position to form a child sitting position, the two sitting positions cannot be quickly and simply switched; it is obvious that solving this technical problem is a long-standing actual demand in the market.

For the single-base booster pad therein, the technical feasibility of rapidly switching it between the adult-sized seating position and the child-sized seating position is relatively higher because of its relatively simple structure in three child seats. In the prior art, the foldable high-back heightening seat is provided, and the cushion part of the seat can be folded relative to the backrest in a turnover way, so that the seat can be conveniently stored. The overturning and folding of the cushion part provides a reference for the rapid switching of the heightening cushion with a single base.

In practice, researchers want to connect single-base booster pads with standard interfaces in a rotary folding manner, and form child seats when the booster pads are tiled on the seat cushion of the automobile seat; when the heightening pad is turned over and then is abutted against the backrest of the automobile self-seat, an adult sitting position is formed, and the heightening pad is converted into a back cushion/waist support/waist cushion. The heightening pad should be kept in a relatively stable state before and after overturning, and especially when the heightening pad is used as a child safety seat cushion, the heightening pad should not be overturned at will; it is necessary to consider how to lock the state of the booster pad.

Disclosure of Invention

In order to solve the technical problem of locking the heightening pad, the utility model provides a system capable of rapidly, conveniently and stably locking/unlocking the heightening pad before and after overturning, and particularly adopts the main technical scheme that:

the utility model provides a children safety increases pad upset locking mechanical system which the key lies in: the safety seat comprises a heightening pad body, wherein a horizontal overturning shaft is arranged at the rear part of the heightening pad body, the horizontal overturning shaft is arranged along the left-right direction of the heightening pad body, the heightening pad body is rotationally assembled with the horizontal overturning shaft, and two ends of the horizontal overturning shaft are respectively fixedly connected with a safety seat standard interface part;

a plurality of lock holes are formed in the horizontal overturning shaft, and a movable lock pin is assembled on the heightening pad body and faces the horizontal overturning shaft;

an unlocking operation piece is arranged on the heightening pad body and connected with the movable lock pin, so that the movable lock pin can extend into/out of any lock hole.

By adopting the technical scheme, the safety seat standard interface parts at the two ends of the horizontal overturning shaft are connected with the safety seat standard connecting parts on the automobile seat, and the horizontal overturning shaft is rotationally connected with the heightening pad body after being fixed into a whole with the safety seat standard interface parts at the two ends of the horizontal overturning shaft, so that the point position/object to be locked/unlocked is lowered to one point position/object, and the locking/unlocking structure is convenient to simplify; the movable lock pin is matched with a lock hole on the horizontal overturning shaft to achieve the aim of quick locking/unlocking; after the movable lock pin is locked with the lock hole of the horizontal overturning shaft, the connection is stable and not easy to fall off, and the heightening pad can be ensured to be in a stable use state.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is a schematic view showing the internal structure of the booster pad body 1;

fig. 3 is a schematic diagram showing the assembly relationship of the horizontal turning shaft 2 and the turning sleeve 5.

Detailed Description

The utility model is further described below with reference to examples and figures.

As shown in fig. 1, 2 and 3, the turnover locking mechanism for the child safety heightening pad comprises a heightening pad body 1, wherein a horizontal turnover shaft 2 is arranged at the rear part of the heightening pad body 1, the horizontal turnover shaft 2 is arranged along the left-right direction of the heightening pad body 1, the heightening pad body 1 is rotationally assembled with the horizontal turnover shaft 2, and two ends of the horizontal turnover shaft 2 are respectively fixedly connected with a safety seat standard interface piece 6;

at least one lock hole is arranged on the horizontal overturning shaft 2, and two lock holes are arranged according to the requirement. When only one lock hole is provided, the lock hole is horizontally arranged and faces to the front of the heightening pad body 1, and the heightening pad body 1 is correspondingly placed horizontally. When two lock holes are formed, one lock hole is horizontally arranged and faces the front of the heightening pad body 1, and corresponds to the state when the heightening pad body 1 is horizontally placed; the other lock hole is vertically arranged and corresponds to the state when the heightening pad body 1 is turned to be vertical.

A movable lock pin 3 is assembled on the heightening pad body 1, and the movable lock pin 3 faces the horizontal turning shaft 2; more specific embodiments are: the central line of the movable lock pin 3 is vertical to the axis of the horizontal turning shaft 2, the movable lock pin 3 is horizontally arranged, the movable lock pin 3 can be slidably assembled at any position of the heightening pad body 1, and the movable lock pin 3 can slide along the axis to advance and retreat.

For easy adjustment, an unlocking operation member 4 is provided on the height-increasing pad body 1, and the unlocking operation member 4 is connected with the movable lock pin 3 so as to enable the movable lock pin 3 to extend into/out of any lock hole.

The unlocking operation member 4 may be a cable (commonly referred to as a motorcycle throttle cable, a brake cable, etc.) with a reset function, or may be a motor. A fixed operating member is: the unlocking operation piece 4 is an unlocking rod which is inserted into the heightening pad body 1, the unlocking rod is coaxially connected with the movable lock pin 3, the free end of the unlocking rod extends out of the heightening pad body 1, and the movable lock pin 3 can be controlled to move in and out through operation at the free end of the unlocking rod; at the moment, a reset spring can be sleeved on the unlocking rod, and the movable lock pin 3 is unlocked when the unlocking rod is pulled out of the heightening pad body 1, so that the reset spring is pressed and deformed at the moment, and the unlocking rod can retract automatically. The movable lock pin 3 and the unlocking operation member 4 may be two independent and connected components or may be connected as a whole.

The horizontal overturning shaft 2 is close to the upper part of the heightening pad body 1; the safety seat standard interface 6 comprises a heightening rod 61 and a second extension rod 62, wherein the heightening rod 61 is vertically arranged, and the upper end of the heightening rod 61 is fixedly connected with the end part of the horizontal turning shaft 2; the second extension rod 62 is horizontally arranged, the second extension rod 62 is arranged along the front-back direction of the heightening pad body 1, the front end of the second extension rod 62 is fixedly connected with the lower end of the heightening rod 61, and the rear end of the second extension rod 62 is provided with a standard safety seat interface.

The rotation assembly mode of the heightening pad body 1 and the horizontal overturning shaft 2 is as follows: the middle part activity cover at horizontal turnover shaft 2 is equipped with turnover sleeve 5, inlays between this turnover sleeve 5 and the horizontal turnover shaft 2 and is equipped with wear-resisting cover, wear-resisting cover is the plastics bush, avoids abnormal sound when reducing the frictional force between horizontal turnover shaft 2, the turnover sleeve 5.

In order to facilitate the connection of the overturning sleeve 5 and the heightening pad body 1, one or two first extension rods 51 are arranged on the outer wall of the overturning sleeve 5, the first extension rods 51 extend towards the front part of the heightening pad body 1, and the heightening pad body 1 is fixedly connected with the first extension rods 51.

In order to restrain the turning sleeve 5 from moving axially when rotating, limiting pins are respectively inserted into the horizontal turning shafts 2 at two ends of the turning sleeve 5, and the axial movement of the turning sleeve 5 is restrained by the limiting pins; simultaneously, the wear-resistant sleeves extend out from two ends of the overturning sleeve 5 respectively and are abutted against the limiting pins. At this time, the movable locking pin 3 can be directly slidably fitted on the overturning sleeve 5.

The beneficial effects are that: by adopting the technical scheme of the utility model, the child safety heightening pad before and after overturning can be locked/unlocked quickly, conveniently and stably, the structure is simple and effective, and the heightening pad is ensured to be in different use states.

Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (6)

1. The utility model provides a children safety increases pad upset locking mechanical system which characterized in that: the lifting pad comprises a lifting pad body (1), wherein a horizontal turnover shaft (2) is arranged at the rear part of the lifting pad body (1), the horizontal turnover shaft (2) is arranged along the left-right direction of the lifting pad body (1), the lifting pad body (1) is rotationally assembled with the horizontal turnover shaft (2), and two ends of the horizontal turnover shaft (2) are respectively fixedly connected with a safety seat standard interface piece (6);

a plurality of lock holes are formed in the horizontal turnover shaft (2), a movable lock pin (3) is assembled on the heightening pad body (1), and the movable lock pin (3) faces the horizontal turnover shaft (2);

an unlocking operation piece (4) is arranged on the heightening pad body (1), and the unlocking operation piece (4) is connected with the movable lock pin (3) so that the movable lock pin (3) stretches into/out of any lock hole.

2. The child safety booster pad flip and lock mechanism of claim 1, wherein: a turnover sleeve (5) is movably sleeved in the middle of the horizontal turnover shaft (2), and a wear-resistant sleeve is embedded between the turnover sleeve (5) and the horizontal turnover shaft (2);

the outer wall of the turnover sleeve (5) is provided with at least one first extension rod (51), the first extension rod (51) extends to the front part of the heightening pad body (1), and the heightening pad body (1) is fixedly connected with the first extension rod (51).

3. The child safety booster pad flip and lock mechanism of claim 2, wherein: limiting pins are respectively arranged on the horizontal overturning shafts (2) at two ends of the overturning sleeve (5), and the axial movement of the overturning sleeve (5) is restrained by the limiting pins;

the wear-resistant sleeves extend out of two ends of the overturning sleeve (5) respectively and are propped against the limiting pins.

4. A child safety booster pad flip lock mechanism according to claim 2 or 3, wherein: the movable lock pin (3) is slidingly assembled on the overturning sleeve (5).

5. A child safety booster pad flip lock mechanism according to claim 1, 2 or 3, wherein: the unlocking operation piece (4) is an unlocking rod which is inserted into the heightening pad body (1), the unlocking rod is coaxially connected with the movable lock pin (3), and the free end of the unlocking operation piece (4) extends out of the heightening pad body (1).

6. A child safety booster pad flip lock mechanism according to claim 1, 2 or 3, wherein: the horizontal overturning shaft (2) is close to the upper part of the heightening pad body (1);

the safety seat standard interface piece (6) comprises a heightening rod (61) and a second extension rod (62), wherein the heightening rod (61) is vertically arranged, and the upper end of the heightening rod (61) is fixedly connected with the end part of the horizontal overturning shaft (2);

the second extension rod (62) is horizontally arranged, the second extension rod (62) is arranged along the front-back direction of the heightening pad body (1), the front end of the second extension rod (62) is fixedly connected with the lower end of the heightening rod (61), and the rear end of the second extension rod (62) is provided with a standard safety seat interface.