CN208813032U - A headrest adjusting device and a child safety seat - Google Patents

Abstract

The utility model discloses a kind of head rest regulating device and the child safety seat with head rest regulating device, head rest are highly adjustable and easy to adjust.Head rest regulating device includes the fixed plate connected for the seat body with child safety seat, the head rest that moves up and down of opposing fixed plate and the mounting plate of head rest can be fixedly connected on, there are multiple spaced head rest gears up and down in fixed plate, locked groove is respectively equipped at each head rest gear of fixed plate, head rest regulating device further includes the locking piece being rotatably connected on mounting plate by pivot, there is the sticking department being inserted into any locked groove on locking piece, head rest regulating device has lock state and unlocked state, in lock state, the sticking department of locking piece is inserted in one of in the locked groove at head rest gear, head rest and fixed Board position locking；When unlocked, locking piece sticking department be detached from locked groove, head rest can opposing fixed plate move up and down.

Description

A headrest adjusting device and a child safety seat

technical field

The utility model relates to the field of children's products, in particular to a headrest adjustment device and a child safety seat with the headrest adjustment device.

Background technique

A child safety seat usually includes a head support. When the safety seat is in use, the position of the head support can be adjusted correctly, so that the safety seat can effectively protect the head and limbs of the child, and the protection effect of the safety seat on the child can be guaranteed. . If the adjustment between the headrest and the backrest is unreasonable, the safety protection effect of the safety seat on the child will be greatly reduced. In the event of an accident, the safety of the child may not be effectively protected.

In the existing child safety seat, the adjustment device of the backrest is unreasonably designed, and the adjustment of the headrest is inconvenient. After the adjustment of the headrest, the fixing is not firm, and the headrest may be caused during the bumpy driving of the car for a long time and when the child shakes. Sliding down, the headrest and backrest of the child safety seat do not correspond to the limbs of the child, which cannot effectively protect the safety of the child.

SUMMARY OF THE INVENTION

In view of the above problems, the purpose of the present invention is to provide a headrest adjusting device and a child safety seat having the headrest adjusting device, the height of the headrest is adjustable and the adjustment is convenient.

To achieve the above object, the utility model adopts the following technical solutions:

A headrest adjustment device, comprising a fixing plate for connecting with a seat body of a child safety seat, a headrest movable up and down relative to the fixing plate, and a mounting plate fixedly connected to the headrest, the fixed There are a plurality of headrest gear positions on the plate that are arranged at intervals up and down, and each of the headrest gear positions of the fixing plate is respectively provided with a locking groove. A locking piece on the mounting plate, the locking piece has a locking portion that can be inserted into any one of the locking grooves, the headrest adjusting device has a locking state and an unlocking state, in the locking state, the locking piece The locking portion is inserted into the locking groove at one of the head support gear positions, and the head support is locked with the fixing plate; in the unlocked state, the locking portion of the locking member is disengaged from the locking groove, the The head rest can move up and down relative to the fixing plate.

In one embodiment, a left locking slot and a right locking slot are respectively provided at each of the head rest positions of the fixing plate, the left locking slot has a notch facing the right side, and the right The side lock slot has a slot facing the left side, and the number of the locking pieces is two and is located between the left lock slot and the right lock slot, when the headrest adjusting device is in the locked state, The locking portion of the left locking piece is inserted into the left locking slot, and the locking portion of the right locking piece is inserted into the right locking slot.

In one embodiment, the headrest adjusting device further includes a first elastic member for pushing the locking member into the locking groove.

In one embodiment, the first elastic member is a torsion spring located between the two locking members, and the torsion spring is arranged on the mounting plate.

In one embodiment, the headrest adjusting device further includes an unlocking handle that is slidably connected to the mounting plate up and down. When the headrest adjusting device is in a locked state, the lower end of the unlocking handle extends into the left side. between the upper part of the side locking piece and the upper part of the right locking piece; when the headrest adjusting device is in the unlocking state, the lower end of the unlocking handle is located above the left locking piece and the right locking piece.

In one embodiment, a second elastic member is disposed between the unlocking handle and the mounting plate.

In one embodiment, the locking portion has an unlocking slope capable of being in contact with the locking groove.

In one embodiment, the upper groove wall and the lower groove wall of each of the lock grooves are respectively inclined surfaces, and the upper surface of the locking portion has an upper unlocking inclined surface that can contact and cooperate with the upper groove wall of the lock groove, The lower surface of the locking portion has a lower unlocking slope capable of being in contact with the lower groove wall of the locking groove, and the locking portion is V-shaped.

In one embodiment, the headrest adjusting device further includes a cover plate, the cover plate is fixedly connected to the lower part of the fixing plate, and the lower part of the headrest can be slidably inserted into the cover plate and the lower part of the fixing plate. between the fixed plates.

The utility model also adopts the following technical solutions:

A child safety seat includes a seat body and the headrest adjusting device, and a fixing plate of the headrest adjusting device is fixedly connected to the seat body.

Combined with the above, the present utility model adopts the above technical solutions, which has the following advantages compared with the prior art:

In the headrest adjusting device and the child safety seat provided by the utility model, the headrest can move up and down relative to the fixed plate, and the locking piece can rotate around the pivot, so that it can be inserted into or disengaged from the lock groove to realize the locking and unlocking of the headrest. The height of the head is adjustable and easy to adjust, and the locking is firm.

Description of drawings

In order to illustrate the technical solutions of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, which are of great significance to the art For those of ordinary skill, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic view of a child safety seat according to the present invention, wherein the headrest is located in a lower gear;

FIG. 2 is a schematic view of the child safety seat shown in FIG. 1 , wherein the headrest is located at a higher gear;

Fig. 3 is a front schematic view of a headrest adjusting device according to the present invention;

Fig. 4 is the back schematic diagram of the headrest adjusting device shown in Fig. 3;

5 is a schematic view of the head rest adjusting device shown in FIG. 3 in a locked state, wherein the head rest is hidden;

Fig. 6 is the partial enlarged view of A place in Fig. 5;

7 is a schematic view of the head rest adjusting device shown in FIG. 3 in an unlocked state, wherein the head rest is hidden;

Figure 8 is a schematic diagram of the position of the unlocking handle in a locked state;

FIG. 9 is a schematic diagram of the position of the unlocking handle in the unlocked state.

in,

1. Seat body; 2. Headrest adjustment device;

21, fixed plate; 210, head rest gear; 211, left lock slot; 212, right lock slot; 213, upper slot wall; 214, lower slot wall; 215, upper unlocking slope; 216, lower unlocking Inclined surface; 22, head rest; 220, seat belt interface; 221, mounting plate; 23, left locking piece; 230, pivot; 231, locking part; 24, right locking piece; 240, pivot; 241 25, torsion spring; 26, unlock handle; 260, operation part; 261, installation slot; 27, compression spring; 28, cover.

Detailed ways

The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

1-2 shows a child safety seat according to the present invention, which includes a seat body 1 and a headrest adjusting device 2 arranged on the seat body 1 , wherein the headrest 22 of the headrest adjusting device 2 It can slide up and down relative to the seat body 1 . As shown in FIG. 1 , the height of the head rest 22 is relatively low and is located at a lower position of the seat body 1 ; as shown in FIG. 2 , the height of the head rest 22 is relatively high and is located at a higher position of the seat body 1 .

Figures 3-9 show a headrest adjusting device according to the present invention, that is, the headrest adjusting device 2 of the child safety seat shown in Figures 1-2. 3-9, the headrest adjusting device 2 mainly includes a fixing plate 21 and a headrest 22, the fixing plate 21 is fixedly connected with the seat body 1 of the child safety seat, and the headrest 22 can slide up and down relative to the fixing plate 21 . As shown in FIG. 4 , the head rest adjusting device 2 further includes a mounting plate 221 fixedly connected to the head rest 22 , and the mounting plate 221 is fixedly connected to the rear side of the head rest 22 by screws. The fixing plate 21 has a plurality of head rest positions 210 arranged at intervals up and down, and each head rest position 210 of the fixing plate 21 is respectively provided with a locking groove. The headrest adjusting device 2 also includes a locking member rotatably connected to the mounting plate 221 through a pivot, the locking member has a locking portion that can be inserted into any locking slot, and the locking portion is located above the pivot. The headrest adjusting device 2 has a locked state and an unlocked state. In the locked state, the locking portion of the locking member is inserted into the locking groove at one of the headrest gear positions 210; in the unlocked state, the locking portion of the locking member is separated from the locking groove. .

Specifically in this embodiment, the fixing plate 21 has five head rest positions 210 , and each head rest position 210 of the fixing plate 21 is respectively provided with a pair of lock grooves with left and right opposite notches, namely the left lock groove 211 and the right side lock groove 210 . The lock slot 212, the left lock slot 211 has a notch facing to the right, the right lock slot 212 has a notch facing the left, and the left lock slot 211 and the right lock slot 212 are located at the same head bracket position 210. equal to each other. The number of the locking pieces is two and is located between the left locking slot 211 and the right locking slot 212, the locking portion 231 of the left locking piece 23 is formed on the left side thereof, and the locking portion 241 of the right locking piece 24 is formed on its right side. The lower end of the left locking member 23 is rotatably connected to the fixing plate 21 through a pivot shaft 230 , and the lower end of the right locking member 24 is rotatably connected to the fixing plate 21 through a pivot shaft 240 . The pivot shaft 230 and the axis of the pivot shaft 240 The heart lines respectively extend along the front and rear directions of the child safety seat and are arranged horizontally.

Each locking portion 231 and locking portion 241 respectively have unlocking slopes that can be in contact with the left locking slot 211 and the right locking slot 212. When the unlocking handle moves, the left locking member 23 and the right locking member 24 move accordingly. And under the action of the unlocking slope, it is separated from the left locking slot 211 and the right locking slot 212 . Specifically, the upper slot wall 213 and the lower slot wall 214 of each left locking slot 211 and right locking slot 212 are respectively inclined planes and are symmetrical to each other, and the upper surfaces of each locking portion 231 and locking portion 241 have a surface that can be connected with the locking slot. The upper unlocking slope 215 is in contact with the upper groove wall 213, the lower surface of each locking part 231, the locking part 241 has a lower unlocking slope 216 that can contact and cooperate with the lower groove wall 214 of the locking groove, and each locking part 231, locking The upper unlocking slope 215 and the lower unlocking slope 216 of the part 241 are also symmetrical with each other, so that the locking part 231 and the locking part 241 are generally V-shaped.

The headrest adjusting device 2 further includes a first elastic member for pushing the locking portion 231 and the locking portion 241 into the left locking groove 211 and the right locking groove 212 . The first elastic member is specifically a torsion spring 25 located between the left locking member 23 and the right locking member 24 . The torsion spring 25 is arranged on the mounting plate 221 and both ends abut against the left locking member 23 and the right locking member respectively. Top of 24.

The headrest adjusting device 2 further includes an unlocking handle 26 slidably connected to the mounting plate 221 up and down, and a second elastic member is further provided between the unlocking handle 26 and the mounting plate 221 . Specifically, the unlocking handle 26 generally extends in the up-down direction and can be slid up and down on the head rest 22. The upper end of the unlocking handle 26 is provided with an operation part 260, and the operation part 260 is located at the upper part of the head rest 22. The operation part 260 is specifically It can be a hole opened on the upper end of the unlocking handle 26 . The second elastic member is a compression spring 27 which is placed on top of the mounting plate 221 and the lower end of the unlocking handle 26. The lower end of the unlocking handle 26 is provided with an installation groove 261, the compression spring 27 is arranged in the installation groove 261, and the lower end of the compression spring 27 abuts against On the lower groove wall of the installation groove 261 , the upper end of the compression spring 27 abuts on the installation plate 221 . When the headrest adjusting device 2 is in the locked state, the lower end of the unlocking handle 26 extends between the upper part of the left locking piece 23 and the upper part of the right locking piece 24; in the process of pulling the unlocking handle 26 to unlock, initially, The compression spring 27 is compressed first, and the unlocking handle 26 moves up a certain distance relative to the fixing plate 21 so that its lower end is located above the left locking piece 23 and the right locking piece 24, leaving the space between them, and then install the plate 221 and the head rest 22 move up and down together, and the upper parts of the left locking member 23 and the right locking member 24 are rotated and folded toward each other to realize unlocking.

The head support 22 is provided with a safety belt, and the lower part of the head support 22 is specifically provided with a safety belt interface 220, and the safety belt is connected to the safety belt interface 220 of the head support 22. When the height of the head support 22 is adjusted, the safety belt also follows. Height adjustment. The head support adjusting device 2 further includes a cover plate 28, the cover plate 28 is fixedly connected to the lower part of the fixing plate 21, and the lower part of the head support 22 is slidably inserted between the cover plate 28 and the fixing plate 21, so that the cover plate 28 The headrest 22 and the headrest 22 can always be spliced to each other to support the child's back. After the cover plate 28 and the headrest 22 are covered with a cloth cover, the part supporting the child's back is relatively flat, which improves the comfort of use. In addition, the lower part of the head rest 22 and the cover plate 28 are both provided with a plurality of ventilation holes.

The height adjustment process of the head rest 22 in the present invention is as follows: (1) Pull the unlocking handle 26 upward to move it from the position shown in FIG. 8 to the position shown in FIG. 9 , during this process, the unlocking handle 26 The upward movement relative to the fixing plate 21 causes the lower end of the unlocking handle 26 to move above the left locking piece 23 and the right locking piece 24, thereby avoiding the space between them, and at the same time the compression spring 27 is compressed. (2) Pull the head support 22 upward, the mounting plate 221 and the locking member 23 and the locking member 24 on the mounting plate 221 tend to move upward relative to the fixing plate 21 , the upper unlocking slope 215 of the locking portion 231 and the locking portion 241 and the locking groove 211 are respectively 2. The upper groove walls 213 of the lock groove 212 are in contact with each other, and under the action of the upper unlocking slope 215, the left locking piece 23 and the right locking piece 24 are pushed inwardly to rotate relative to each other, and the left locking part 231 is released from the left locking part 231. The slot 211 and the right locking part 241 are separated from the right locking slot 212; or the head holder 22 is pressed downward, the mounting plate 221 and the locking pieces 23 and 24 thereon tend to move downward relative to the fixing plate 21, and the locking part 231 , The lower unlocking slope 216 of the locking portion 241 is in contact with the locking groove 211 and the lower groove wall 214 of the locking groove 212. Under the action of the lower unlocking slope 216, the left locking piece 23 and the right locking piece 24 are pushed inwardly so that Rotating toward each other, the left locking portion 231 is disengaged from the left locking slot 211 and the right locking portion 241 is disengaged from the right locking slot 212 . (3) When the head rest 22 reaches the gear of the specified height, release the unlocking handle 26, and the left locking part 231 and the right locking part 241 enter the left locking groove 211 and the right locking part respectively under the elastic force of the torsion spring 25. In the groove 212, the unlocking handle 26 extends downwardly between the upper part of the left locking piece 23 and the upper part of the right locking piece 24 under the elastic force of the compression spring 27, and the locking is more firm.

The above-mentioned embodiments are only for illustrating the technical concept and characteristics of the present utility model, and are preferred implementations. The purpose is that those who are familiar with the technology can understand the contents of the present utility model and implement them accordingly, and cannot limit the present utility model with this. scope of protection. All equivalent transformations or modifications made according to the spirit of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A headrest adjustment device, comprising a fixing plate for connecting with a seat body of a child safety seat, a headrest that can move up and down relative to the fixing plate, and a mounting plate fixedly connected to the headrest, which It is characterized in that: the fixing plate is provided with a plurality of head support gear positions arranged at intervals up and down, each of the head support gear positions of the fixing plate is respectively provided with a locking groove, and the head support adjusting device further comprises a pivot The shaft is rotatably connected to a locking piece on the mounting plate, the locking piece has a locking portion that can be inserted into any one of the locking grooves, and the headrest adjusting device has a locking state and an unlocking state, and in the locking state In the unlocked state, the locking portion of the locking member is inserted into the locking groove at one of the headrest gear positions, and the headrest and the fixing plate are locked in position; in the unlocked state, the locking portion of the locking member Disengaged from the lock slot, the head rest can move up and down relative to the fixing plate. 2 . The headrest adjusting device according to claim 1 , wherein each of the headrest gear positions of the fixing plate is provided with a left locking groove and a right locking groove respectively, and the left locking the slot has a right-facing slot, the right-side locking slot has a left-facing slot, and the locking pieces are two in number and located between the left locking slot and the right locking slot, When the headrest adjusting device is in the locked state, the locking portion of the left locking member is inserted into the left locking groove, and the locking portion of the right locking member is inserted into the right locking groove. 3 . The headrest adjusting device according to claim 2 , wherein the headrest adjusting device further comprises a first elastic member for pushing the locking portion into the locking groove. 4 . 4 . The headrest adjusting device according to claim 3 , wherein the first elastic member is a torsion spring located between the two locking members, and the torsion spring is arranged on the mounting plate. 5 . 5 . The headrest adjusting device according to claim 2 , wherein the headrest adjusting device further comprises an unlocking handle connected to the mounting plate slidably up and down, when the headrest adjusting device is in a locked state. 6 . When the unlocking handle is in the unlocked state, the lower end of the unlocking handle extends between the upper part of the left locking part and the upper part of the right locking part; when the headrest adjusting device is in the unlocked state, the lower end of the unlocking handle is located between the left locking part and the upper part of the right locking part; above the right lock. 6 . The headrest adjusting device according to claim 5 , wherein a second elastic member is provided between the unlocking handle and the mounting plate. 7 . 7 . The headrest adjusting device according to claim 1 , wherein the locking portion has an unlocking slope capable of being in contact with the locking groove. 8 . 8 . The headrest adjusting device according to claim 7 , wherein the upper groove wall and the lower groove wall of each of the locking grooves are respectively inclined surfaces, and the upper surface of the locking portion has a surface capable of engaging with the locking groove. 9 . The upper unlocking inclined surface of the upper groove wall of the locking part is in contact and matching, the lower surface of the locking part has a lower unlocking inclined surface that can contact and cooperate with the lower groove wall of the locking groove, and the locking part is V-shaped. 9 . The head rest adjusting device according to claim 1 , wherein the head rest adjusting device further comprises a cover plate, the cover plate is fixedly connected to the lower part of the fixing plate, and the lower part of the head rest It is slidably inserted between the cover plate and the fixing plate. 10. A child safety seat, comprising a seat body, characterized in that: further comprising the headrest adjusting device according to any one of claims 1-9, wherein the fixing plate of the headrest adjusting device is fixedly connected to the the seat body.