CN212827985U

CN212827985U - Child safety seat with adjustable headrest height

Info

Publication number: CN212827985U
Application number: CN202021464151.XU
Authority: CN
Inventors: 杨和荣; 户谷正昭
Original assignee: Ningbo Chisage Children Safety Supplies Co ltd
Current assignee: Ningbo Chisage Children Safety Supplies Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-03-30
Anticipated expiration: 2030-07-22

Abstract

The utility model belongs to the technical field of children's seat, a children's safety seat of adjustable headrest height is provided, including seat support, the back of the chair, the headrest, connect the slip subassembly between the back of the chair and headrest, the slip subassembly includes handle and spacer, and handle and spacer pass through the joint of joint piece joint on the headrest downthehole, are equipped with the locating piece on the spacer and set up in the constant head tank on the back of the chair, are equipped with the spring between handle and headrest, but are equipped with first inclined plane and the second inclined plane of interact on handle and the spacer. Compared with the prior art, the utility model has the advantages of: the height of the headrest on the chair back can be adjusted through the sliding assembly, the requirements of babies with different ages, heights and weights are met, and as the babies grow, parents do not need to replace the child safety seat for multiple times to meet the use requirements, and the headrest can be locked on the chair back through the positioning blocks on the positioning pieces and the positioning grooves in the position of the chair back, so that the headrest is prevented from moving, and the safety and the comfort of use are guaranteed.

Description

Child safety seat with adjustable headrest height

Technical Field

The utility model belongs to the technical field of children's seat, concretely relates to children's safety seat of adjustable headrest height.

Background

In recent years, a family car is provided with a child seat to improve the safety of taking children, but the child seat in the market is also suitable for babies with different ages, different heights and different weights, so that parents can meet the requirement of replacing the child seat for many times with the growth of the babies. Furthermore, a child seat is not suitable for children of different ages.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the current situation of prior art, and provide the children's safety seat of adjustable headrest height.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a child safety seat with adjustable headrest height is proposed, comprising:

the two sides of the middle position of the inner side of the chair back are provided with positioning grooves which are distributed at intervals;

the headrest is connected to the chair back in a sliding mode, first clamping holes are formed in two sides of the middle position of the upper side of the headrest, second clamping holes are formed in two sides of the middle position of the lower side of the headrest, a spring mounting groove is formed in the inner side of the lower end of each second clamping hole, and a tower-shaped protruding block is arranged at the top end of each spring mounting groove;

the sliding assembly is arranged between the chair back and the headrest and comprises a handle and a U-shaped positioning piece, the handle is arranged on the chair back, first clamping blocks are arranged on two sides of the upper end of the handle, clamping blocks are arranged on two sides of the lower end of the handle, a spring mounting boss corresponding to the spring mounting groove is arranged in the middle of each clamping block, a conical convex block is arranged at the bottom end of each spring mounting boss, a spring is arranged between each two corresponding conical convex blocks, a first inclined plane is arranged at the lower end of the handle, the horizontal part of the positioning piece is clamped at the lower end of each clamping block, second inclined planes are arranged on two sides of the horizontal part of the positioning piece, second clamping blocks are arranged on two sides of the upper end of the vertical part of the positioning piece, and a positioning block corresponding to the positioning groove is arranged on one side of the lower end of the vertical part of the positioning piece.

In the above child safety seat with the height-adjustable headrest, the child safety seat further comprises a seat, and the seat is movably connected to the lower end of the seat back.

In foretell children's safety seat of adjustable headrest height, the downthehole both sides of first joint are equipped with the third and slide the step, the outside extension in first joint piece both ends is equipped with the joint end, joint end joint is in on the third slides the step.

In foretell children's safety seat of adjustable headrest height, the upper end of the back of the chair is equipped with first stopper, the top of first stopper is equipped with first protruding piece, the intermediate position department of handle is equipped with the first sliding hole of rectangular shape, the headrest corresponds first sliding hole is equipped with the mounting hole, both sides are equipped with first slip step in the mounting hole, first stopper passes first sliding hole sets up in the mounting hole, make first protruding piece joint is on first slip step.

In foretell children's safety seat of adjustable headrest height, the lower extreme of headrest is equipped with the second stopper, the top of second stopper is equipped with the protruding piece of second, the intermediate position department of the back of the chair corresponds first slip hole is equipped with the second slip hole, both sides are equipped with the second slip step in the second slip hole, the second stopper passes first slip hole sets up in the second slip hole, make the protruding piece joint of second is on the second slip step.

In the child safety seat with the adjustable headrest height, mounting grooves are formed in two sides of the handle, and the vertical portion of the positioning piece is arranged in the mounting grooves.

In the child safety seat with the height-adjustable headrest, the top end of the handle extends towards one side of the seat back to form a pull block.

In the child safety seat with the height-adjustable headrest, the chair back and the headrest are both provided with the head protection side wings.

Compared with the prior art, the utility model has the advantages of: the utility model discloses a children's safety seat of adjustable headrest height, through the height of the adjustable headrest of sliding assembly on the back of the chair, satisfy the baby's of different ages, height, weight needs, and along with baby's growth, the head of a family also need not to change children's safety seat many times and can satisfy needs, and the constant head tank through locating piece on the spacer and back of the chair department can lock the headrest on the back of the chair in addition, avoids the headrest to take place to remove, security and travelling comfort that the guarantee was used.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

fig. 2 is a schematic structural view of a chair back according to an embodiment of the present invention;

fig. 3 is a schematic front view of a headrest according to an embodiment of the present invention;

fig. 4 is a back side view of a headrest according to an embodiment of the present invention;

FIG. 5 is a first schematic structural view of a pull handle according to an embodiment of the present invention;

FIG. 6 is a second schematic structural view of a pull handle according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a spacer according to an embodiment of the present invention.

In the figure, 100-chair back; 110-a positioning groove; 120-a first stopper; 130-a second sliding hole; 140-head protection side wing; 200-headrest; 220-first snap-in hole; 221-a third sliding step; 230-a second snap hole; 240-spring mounting groove; 241-pyramid shaped bumps; 250-mounting holes; 251-a first sliding step; 260-a second stopper; 261-a second bump; 300-handle; 310-pulling the block; 320-mounting grooves; 330-a first sliding hole; 340-a first clamping block; 341-a clamping end; 350-a fixture block; 360-spring mounting boss; 361-tapered bumps; 400-positioning plate; 410-a second bevel; 420-a second card block; 430-a positioning block; 500-seat base.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 2, 3, 4, 5, 6 and 7, the child safety seat with adjustable headrest height according to the present invention comprises: the chair comprises a chair back 100, wherein positioning grooves 110 distributed at intervals are formed in two sides of the middle position of the inner side of the chair back 100; the headrest 200 is slidably connected to the seat back 100, first clamping holes 220 are formed in two sides of the middle position of the upper side of the headrest 200, second clamping holes 230 are formed in two sides of the middle position of the lower side of the headrest 200, a spring installation groove 240 is formed in the inner side of the lower end of each second clamping hole 230, and a tower-shaped bump 241 is arranged at the top end of each spring installation groove 240; the sliding assembly is arranged between the chair back 100 and the headrest 200 and comprises a handle 300 and a U-shaped positioning piece 400, the handle 300 is arranged on the chair back 100, first clamping blocks 340 are arranged on two sides of the upper end of the handle 300, clamping blocks 350 are arranged on two sides of the lower end of the handle 300, a spring installation boss 360 corresponding to the spring installation groove 240 is arranged in the middle of the two clamping blocks 350, a conical convex block 361 is arranged at the bottom end of the spring installation boss 360, a spring is arranged between the tower-shaped convex block 241 and the conical convex block 261, a first inclined plane 370 is arranged at the lower end of the handle 300, the horizontal part of the positioning piece 400 is clamped at the lower end of the clamping block 350, second inclined planes 410 are arranged on two sides of the horizontal part of the positioning piece 400, second clamping blocks 420 are arranged on two sides of the upper end of the vertical part of the positioning piece 400, and a positioning block 430.

When the headrest handle is used, the second clamping block 420 of the positioning piece 400 is clamped in the second clamping hole 230 on the headrest 200 to connect the positioning piece 400 and the headrest 200 together, then the positioning piece 400 is clamped at the lower end of the clamping block 350 of the handle 300, a spring is arranged between the tower-shaped projection 241 and the conical projection 361, and finally the handle 300 is clamped in the first clamping hole 220 on the headrest 200 through the first clamping block 340 to connect the headrest 200, the positioning piece 400 and the handle 300 together. And then the positioning block 430 on the positioning plate 400 is clamped in the positioning groove 110 of the chair back 100, so that the connection among the chair back 100, the sliding assembly and the headrest 200 is completed. When the height of the headrest 200 needs to be adjusted in the using process, the handle 300 is pulled upwards, the handle 300 moves upwards, and the spring arranged between the handle 300 and the headrest 200 is extruded, when the first inclined surface 370 of the handle 300 touches the second inclined surface 410 of the positioning plate 400, the second inclined surface 410 of the positioning plate 400 is subjected to a force perpendicular to the inclined surface, the force perpendicular to the inclined surface is decomposed into a force in the vertical direction to enable the positioning plate 400 to move upwards, the force in the horizontal direction enables the positioning plate 400 to move towards the side far away from the chair back 100, so that the positioning block 430 is moved out of the positioning groove 110 on the chair back 100 to complete unlocking, then the handle 300 is pulled upwards continuously, and the handle 300 drives the headrest 200, the headrest 200 and the headrest 200 to move upwards due to the fact that the handle 300 is clamped in the first clamping hole 220 of the headrest 200 through the first clamping block 340 and the positioning plate 400 is clamped in the second clamping hole 230 of the headrest 200 through the second clamping block 420, and, The positioning plate 400 moves upwards at the same time, when the headrest 200 is moved to a desired height, the handle 300 is loosened, the handle 300 moves by one end distance under the action of elastic force to enable the first inclined surface 370 of the handle 300 to leave the second inclined surface 410 of the positioning plate 400, then the positioning plate 400 moves towards one side of the chair back 100 under the action of self elastic force, positioning grooves 110 distributed at intervals are arranged at two sides of the middle position in the chair back 100, at the moment, the positioning blocks 430 on the positioning plate 400 are clamped in the corresponding positioning grooves 110, locking is completed, tight connection of the chair back 100, the movable assembly and the headrest 200 is realized, and adjustment of the height of the headrest 200 is completed.

As shown in FIG. 1, the child safety seat further includes a seat 500, the seat 500 being movably coupled to a lower end of the seat back 100.

The chair seat 500 and the chair back 100 are movably and detachably connected, so that the manufacturing cost is reduced.

As shown in fig. 3 and 5, third sliding steps 221 are disposed on two inner sides of the first engaging hole 220, engaging ends 341 extend outward from two ends of the first engaging block 340, and the engaging ends 341 are engaged with the third sliding steps 221.

In the initial locking state, the first engaging block 340 of the handle 300 is engaged with the bottom end of the third sliding step 221 in the first engaging hole 220 through the engaging end 341, and the engaging block 350 of the handle 300 abuts against the positioning plate 400. When the handle 300 is pulled upwards, the handle 300 moves to the top end of the first clamping hole 220 along the third sliding step 221 in the first clamping hole 220, at this time, the spring arranged between the tower-shaped projection 241 and the conical projection 361 is squeezed, the first inclined surface 370 of the handle 300 is connected with the second inclined surface 410 of the positioning plate 400, when the handle 300 is continuously pulled upwards, the first inclined surface 370 acts on the second inclined surface 410 through a force perpendicular to the inclined surface, so that the positioning block 430 on the positioning plate 400 is moved out of the positioning groove 110 on the chair back 100, unlocking is completed, and then the handle 300 is continuously pulled upwards, so that the headrest 200 and the positioning plate 400 are driven to continuously move upwards. After the desired height is reached, the handle 300 is released, the handle 300 moves downward by a distance under the elastic force of the spring, and slides from the top end of the first engaging hole 220 to the bottom end of the first engaging hole 220 along the third sliding step 221, and meanwhile, the first inclined surface 370 of the handle 300 leaves the second inclined surface 410 of the positioning piece 400, and the latch 350 of the handle 300 touches the positioning piece 400 again.

As shown in fig. 2, 3 and 5, the upper end of the seat back 100 is provided with a first limiting block 120, the top end of the first limiting block 120 is provided with a first protruding block, the middle position of the handle 300 is provided with a first elongated sliding hole 330, the headrest 200 is provided with a mounting hole 250 corresponding to the first sliding hole 330, two sides in the mounting hole 250 are provided with first sliding steps 251, and the first limiting block 120 passes through the first sliding hole 330 and is arranged in the mounting hole 250, so that the first protruding block is clamped on the first sliding steps 251.

In an initial state, the first stopper 120 of the seat back 100 is disposed at the top end of the first sliding hole 330 of the handle 300, and passes through the first sliding hole 330 of the handle 300 and is clamped at the top end of the first sliding step 251 in the mounting hole 250 of the headrest 200 by the first protrusion. When the handle 300 is pulled upwards, the handle 300 and the headrest 200 move upwards along the seat back 100, and the first stopper 120 on the seat back 100 moves downwards relatively along the mounting hole 250 and the first sliding hole 330. When the first stopper 120 hits the bottom end of the mounting hole 250 or the first sliding hole 330, the handle 300 and the headrest 200 move to the highest position with respect to the seat back 100 and cannot move upward.

As shown in fig. 2, 3, 4 and 5, a second stopper 260 is disposed at a lower end of the headrest 200, a second protrusion block 261 is disposed at a top end of the second stopper 260, a second sliding hole 130 is disposed at a middle position of the seatback 100 corresponding to the first sliding hole 330, second sliding steps are disposed at two sides of the second sliding hole 130, and the second stopper 260 is disposed in the second sliding hole 130 through the first sliding hole 330, so that the second protrusion block 261 is engaged with the second sliding steps.

In the initial state, the second stopper 260 of the headrest 200 passes through the first sliding hole 330 via the second protrusion 261 and is engaged with the lowest end of the second sliding step in the second sliding hole 130 of the seat back 100, which is the lowest height of the headrest. When the handle 300 is pulled upward, the handle 300 and the headrest 200 move upward along the seat back 100, and the second stopper 260 on the headrest 200 moves from bottom to top on the second sliding step in the second sliding hole 130. When the first stopper 120 hits the bottom end of the mounting hole 250 or the first sliding hole 330, the handle 300 and the headrest 200 move to the highest position relative to the seat back 100 and cannot move upward any more, and the second stopper 260 on the headrest 200 does not move any more.

As shown in fig. 5 and 7, mounting grooves 320 are formed at both sides of the handle 300, and the vertical portion of the spacer 400 is disposed in the mounting grooves 320.

The positioning piece 400 is U-shaped, the horizontal part is clamped at the clamping block 350 of the handle 300, the vertical part is arranged in the mounting groove 320 of the handle 300, the positioning block 430 on the positioning piece 400 is clamped at the positioning groove 110 of the chair back 100, the second clamping block 420 of the positioning piece 400 is clamped in the second clamping hole 230 of the headrest 200, the positioning piece 400, the handle 300, the headrest 200 and the chair back 100 are tightly connected, and the structure is exquisite.

As shown in fig. 6, the top end of the handle 300 extends to one side of the chair back 100 to form a pull block 310.

The top end of the handle 300 is provided with the pull block 310, so that the handle 300 can be conveniently moved up and down, and the use is convenient.

As shown in fig. 1 and 2, the seatback 100 and the headrest 200 are provided with head protection wings 140.

The head protection side wings 140 are arranged on the chair back 100 and the headrest 200, so that the protection for children is enhanced.

The working principle is as follows: when the headrest handle is used, the second clamping block 420 of the positioning piece 400 is clamped in the second clamping hole 230 on the headrest 200 to connect the positioning piece 400 and the headrest 200 together, then the positioning piece 400 is clamped at the lower end of the clamping block 350 of the handle 300, a spring is arranged between the tower-shaped projection 241 and the conical projection 361, and finally the handle 300 is clamped in the first clamping hole 220 on the headrest 200 through the first clamping block 340 to connect the headrest 200, the positioning piece 400 and the handle 300 together. And then the positioning block 430 on the positioning plate 400 is clamped in the positioning groove 110 of the chair back 100, so that the connection among the chair back 100, the sliding assembly and the headrest 200 is completed.

In an initial state, the first engaging block 340 of the handle 300 is engaged with the bottom end of the third sliding step 221 in the first engaging hole 220 through the engaging end 341, the engaging block 350 of the handle 300 is abutted to the positioning plate 400, the spring is in an extended state, the first limiting block 120 of the seat back 100 is disposed at the top end of the first sliding hole 330 of the handle 300, the first sliding hole 330 penetrating the handle 300 is engaged with the top end of the first sliding step 251 in the mounting hole 250 of the headrest 200 through the first protruding block, and the second limiting block 260 of the headrest 200 is engaged with the lowest end of the second sliding step in the second sliding hole 130 of the seat back 100 through the first sliding hole 330 through the second protruding block 261, which is the lowest height of the headrest at this time.

When the height of the headrest 200 needs to be adjusted, the pull handle 300 is pulled upwards by the pull block 310, the pull handle 300 moves to the top end of the first clamping hole 220 along the third sliding step 221 in the first clamping hole 220, at this time, the spring arranged between the tower-shaped projection 241 and the conical projection 361 is extruded, and the first inclined surface 370 of the pull handle 300 is connected with the second inclined surface 410 of the positioning piece 400. When the handle 300 is pulled upwards, a force perpendicular to the first inclined plane 370 acts on the second inclined plane 410, the force perpendicular to the inclined plane is decomposed into a vertical force to move the positioning plate 400 upwards, and a horizontal force moves the positioning plate 400 to the side away from the chair back 100, so that the positioning plate 430 is moved out of the positioning groove 110 on the chair back 100, and unlocking is completed. Then, the handle 300 is continuously pulled upwards, and the handle 300 is clamped in the first clamping hole 220 of the headrest 200 through the first clamping block 340 and the positioning piece 400 is clamped in the second clamping hole 230 of the headrest through the second clamping block 420, so that when the handle 300 moves upwards, the headrest 200 and the positioning piece 400 are driven to move upwards simultaneously. Meanwhile, the second stopper 260 of the headrest 200 moves on the second sliding step in the second sliding hole 130 from bottom to top, and the first stopper 120 of the seat back 100 moves relatively downward along the mounting hole 250 and the first sliding hole 330. When the first stopper 120 hits the bottom end of the mounting hole 250 or the first sliding hole 330, the handle 300 and the headrest 200 move to the highest position relative to the seat back 100, and the handle 300 and the headrest 200 cannot move upward any more.

When the headrest 200 is moved to a desired height, the handle 300 is released, the handle 300 moves downward by a distance under the elastic force of the spring, and slides from the top end of the first engaging hole 220 to the bottom end of the first engaging hole 220 along the third sliding step 221, and simultaneously the first inclined surface 370 of the handle 300 leaves the second inclined surface 410 of the positioning piece 400, and the latch 350 of the handle 300 touches the positioning piece 400 again. Then the positioning plate 400 moves to one side of the chair back 100 under the action of the self elastic force, the positioning grooves 110 which are distributed at intervals are arranged at two sides of the middle position in the chair back 100, and the positioning blocks 430 on the positioning plate 400 are clamped in the corresponding positioning grooves 110 to complete locking, so that the chair back 100, the movable assembly and the headrest 200 are tightly connected, and the height of the headrest 200 is adjusted.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the scope and spirit of the invention as defined in the accompanying claims.

Claims

1. Child safety seat with adjustable headrest height, comprising:

2. The headrest height adjustable child safety seat according to claim 1, further comprising a seat movably connected to a lower end of the seat back.

3. The headrest height adjustable child safety seat according to claim 1, wherein third sliding steps are arranged on two sides in the first clamping hole, clamping ends are arranged at two ends of the first clamping block in an outward extending mode, and the clamping ends are clamped on the third sliding steps.

4. The child safety seat with the adjustable headrest height according to claim 1, wherein a first limiting block is arranged at the upper end of the seat back, a first protruding block is arranged at the top end of the first limiting block, an elongated first sliding hole is formed in the middle of the handle, the headrest is provided with a mounting hole corresponding to the first sliding hole, first sliding steps are arranged on two sides in the mounting hole, and the first limiting block penetrates through the first sliding hole and is arranged in the mounting hole, so that the first protruding block is clamped on the first sliding steps.

5. The child safety seat with the adjustable headrest height according to claim 4, wherein a second limiting block is arranged at the lower end of the headrest, a second protruding block is arranged at the top end of the second limiting block, a second sliding hole is formed in the middle position of the seat back corresponding to the first sliding hole, second sliding steps are arranged on two sides in the second sliding hole, and the second limiting block penetrates through the first sliding hole and is arranged in the second sliding hole, so that the second protruding block is connected to the second sliding steps in a clamping mode.

6. The headrest height adjustable child safety seat according to claim 1, wherein mounting grooves are formed at both sides of the handle, and vertical portions of the spacers are disposed in the mounting grooves.

7. The headrest height adjustable child safety seat according to claim 1, wherein a top end of the pull tab extends to a side of the seat back to form a pull block.

8. The headrest height adjustable child safety seat according to claim 1, wherein the seat back and the headrest are each provided with a head-protection flap.