CN211592319U

CN211592319U - Headrest height adjusting mechanism

Info

Publication number: CN211592319U
Application number: CN201922363433.4U
Authority: CN
Inventors: 张震苟
Original assignee: Ningbo Longma Industry Co ltd
Current assignee: Ningbo Longma Industry Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-09-29
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a head rest height adjustment mechanism, including head rest, regulation arm-tie and one to the gear shifting piece, it locates on the head rest to adjust the arm-tie, it can be relative to adjust the arm-tie the head rest reciprocates, gear shifting piece one end is fixed mutually with the head rest, and the other end is unsettled, one to the gear shifting piece be located respectively adjust the arm-tie both sides, just the unsettled one end of gear shifting piece with adjust the arm-tie looks butt, adjust the arm-tie and reciprocate the drive the unsettled one end of gear shifting piece is close to or keeps away from the head rest. Through the improvement of above-mentioned structure, adjust the arm-tie and transfer the piece direct contact, adjust the removal that reciprocates that the arm-tie drives the unsettled one end of piece of transferring the shelves, simple structure, the head rest altitude mixture control is convenient.

Description

Headrest height adjusting mechanism

Technical Field

The utility model relates to a children's safety seat field, especially a head rest height adjustment mechanism.

Background

The child safety seat for the vehicle is a seat riding device specially designed for a child safety riding vehicle, provides a comfortable and safe seat riding environment for children, and is provided with a headrest for protecting the heads of the children in most of the child safety seats for the vehicles sold in the market. The headrest also needs to be height adjustable to accommodate children of different heights. However, the height adjusting mechanism of the headrest is complex and inconvenient to operate.

Disclosure of Invention

In order to solve the defects of the prior art, the utility model aims to provide a headrest height adjusting mechanism with simple structure and convenient operation.

In order to realize above-mentioned purpose, the utility model discloses a head rest height adjustment mechanism, including the head rest, adjust the arm-tie and one to the gear shifting piece, it locates on the head rest to adjust the arm-tie, it can be relative to adjust the arm-tie the head rest reciprocates, gear shifting piece one end is fixed mutually with the head rest, and the other end is unsettled, one to the gear shifting piece be located respectively adjust the arm-tie both sides, just the unsettled one end of gear shifting piece with adjust the arm-tie looks butt, adjust the arm-tie and reciprocate the drive the unsettled one end of gear shifting piece is close to or keeps away from the head rest.

Furthermore, the left side and the right side of adjusting the arm-tie are equipped with a pair of lug, the unsettled one end of gear shifting piece is from up being equipped with butt face and direction inclined plane down in proper order, the lug reciprocates along butt face and direction inclined plane.

Further, the direction inclined plane upwards extends from the butt face to deviating from the slope of headrest direction and forms, just the distance that the direction inclined plane was to the headrest is from being close to the butt face and keeping away from the butt face direction crescent.

Furthermore, be equipped with first logical groove on the head rest, it leads to the groove to be equipped with the second on the regulation arm-tie, first logical groove corresponds with the second logical groove, and a round pin axle is worn to locate first logical groove and second and is led to the groove.

Further, be equipped with a pair of pothook on adjusting the arm-tie, be equipped with a pair of through-hole on the head rest, the pothook is corresponding with the through-hole, just the pothook passes through the through-hole and the joint of head rest looks, the pothook is located in the through-hole cunning.

Furthermore, a groove is formed in the headrest, a convex column is arranged on the adjusting pulling plate and extends into the groove, and an elastic piece is arranged between the upper portion of the convex column and the side wall of the groove.

Furthermore, the pair of gear blocks are connected through a connecting rod, and the connecting rod is positioned between the adjusting pulling plate and the headrest.

Compared with the prior art, the beneficial effects of the utility model are that: through the improvement of above-mentioned structure, adjust the arm-tie and transfer the piece direct contact, adjust the removal that reciprocates that the arm-tie drives the unsettled one end of piece of transferring the shelves, simple structure, the head rest altitude mixture control is convenient.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic view of the structure of fig. 2 from another angle.

Fig. 4 is a partially enlarged view a of fig. 3.

FIG. 5 is a schematic view showing a structure in which a headrest is combined with a seatback.

Fig. 6 is an exploded view of fig. 5.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1 to 6, a headrest height adjusting mechanism includes a headrest 10, an adjusting pull plate 20 and a pair of stoppers 30, the headrest 10 is provided with a first through groove 11, a pair of through holes 12 and a groove 13, the first through groove 11 is generally located at the center of the headrest 10, the pair of through holes 12 are symmetrically arranged according to the center line of the first through groove 11, in this embodiment, the pair of through holes 12 and the groove 13 are both located above the first through groove 11, and the center line of the groove 13 coincides with the center line of the first through groove 11.

Adjust the arm-tie 20 and locate on headrest 10, it leads to groove 21, a pair of pothook 22 and a projection 23 to be equipped with the second on the regulation arm-tie 20, the second leads to groove 21 and first leads to groove 11 corresponding, round pin axle 40 wears to locate in first logical groove 11 and second logical groove 21, pothook 22 is corresponding with through-hole 12, just pothook 22 passes through-hole 12 and headrest 10 looks joint, pothook 22 cunning is located in through-hole 12, in projection 23 stretches into recess 13, projection 23 can reciprocate in recess 13, be equipped with the elastic component between projection 23 upper end and the recess 13 lateral wall, in this embodiment, the elastic component is spring 50. Through the arrangement of the structure, the adjusting pulling plate 20 is connected with the headrest 10 and can move up and down relative to the headrest 10 without separation.

The utility model discloses a shift control device, including shift control piece 30, shift control piece 31, shift control piece 30 one end is fixed mutually with headrest 10, and the other end is unsettled, the unsettled one end of shift control piece 30 is used for inserting the constant head tank on the back of the chair, realizes the location between headrest and the back of the chair, and consequently, the thickness of the unsettled one end of shift control piece can be thicker than other parts, and in this embodiment, the unsettled one end of shift control piece 30 is equipped with shift control post 31, shift control post 31 deviates from headrest 10 direction from and extends the formation, shift control.

The pair of gear shifting blocks 30 are respectively positioned at two sides of the adjusting pulling plate 20, the suspended end of the gear shifting block is abutted against the adjusting pulling plate, and the adjusting pulling plate moves up and down to drive the suspended end of the gear shifting block to be close to or far away from the headrest.

The specific structure between the adjusting pulling plate and the gear shifting block is as follows: adjust the left and right sides of arm-tie 20 and be equipped with a pair of lug 24, the unsettled one end of gear shift piece 30 is from up being equipped with butt face 32 and direction inclined plane 33 down in proper order, lug 24 reciprocates along butt face 32 and direction inclined plane 33, direction inclined plane 33 deviates from headrest 10 direction slope from butt face 32 and upwards extends the formation, just direction inclined plane 33 is close to butt face 32 from the distance of headrest 10 and is kept away from butt face 32 direction crescent.

In this embodiment, the pair of shift blocks 30 are connected through a connecting rod 34, the connecting rod 34 is located between the adjusting pulling plate 20 and the headrest 10, one end of the adjusting pulling plate 20 corresponding to the connecting rod 34 is an inclined surface 25, the distance between the inclined surface 25 and the headrest 10 is gradually increased from bottom to top, and the up-and-down movement distance of the adjusting pulling plate 20 can be effectively limited through the arrangement of the connecting rod 34 and the through hole 12.

When headrest 10 and back of the chair 60 lock mutually, the pillar of transferring a gear 31 is inserted and is located the constant head tank 61 of the back of the chair, at this moment, adjusts lug 24 and butt face 32 looks butt on the arm-tie 20, and the unsettled one end perk of the piece of transferring a gear 20 is kept away from the headrest, when needing the unblock to lean on the position to adjust, the pulling adjust the arm-tie 20 and up remove, and lug 24 slides in direction inclined plane 33 along butt face 32, owing to lost the butt of lug to the piece of transferring a gear, the unsettled one end of the piece of transferring a gear 20 is close to headrest 10, the pillar of transferring a gear 31 keeps away from the constant head tank, breaks away from with the constant head tank of the back of the chair mutually, realizes the unblock, then drives and adjusts the arm-tie 20 and headrest 10 and up or down move together, up or down until required height, then loosens and adjusts the arm-tie 20, adjusts the arm-tie 20 and restores initial position under spring 50, the suspended end of the gear shift block 30 is forced to depart from the headrest and to be inserted into the positioning groove of the chair back, so that the height of the headrest is adjusted.

Claims

1. The utility model provides a headrest height adjustment mechanism, includes the headrest, adjusts the arm-tie and one to the gear shifting piece, it locates on the headrest to adjust the arm-tie, it can be relative to adjust the arm-tie the headrest reciprocates, its characterized in that: the utility model discloses a headrest, including the regulation arm-tie, the regulation arm-tie looks is fixed with the headrest, and the other end is unsettled to gear shifting piece one end, a gear shifting piece is located respectively to a gear shifting piece the regulation arm-tie both sides, just the unsettled one end of gear shifting piece and regulation arm-tie looks butt, it reciprocates to adjust the arm-tie and drives the unsettled one end of gear shifting piece is close to or keeps.

2. The headrest height adjustment mechanism of claim 1, wherein: the left and right sides of adjusting the arm-tie is equipped with a pair of lug, the unsettled one end of gear shifting piece is from up being equipped with butt face and direction inclined plane down in proper order, the lug reciprocates along butt face and direction inclined plane.

3. The headrest height adjustment mechanism of claim 2, wherein: the direction inclined plane upwards extends the formation from the slope of butt face deviating from the head rest direction, just the distance of direction inclined plane to head rest is from being close to the butt face and keeping away from the butt face direction and increase gradually.

4. The headrest height adjustment mechanism of claim 1, wherein: the headrest is provided with a first through groove, the adjusting pulling plate is provided with a second through groove, the first through groove corresponds to the second through groove, and a pin shaft penetrates through the first through groove and the second through groove.

5. The headrest height adjustment mechanism of claim 1, wherein: the adjusting pull plate is provided with a pair of clamping hooks, the headrest is provided with a pair of through holes, the clamping hooks correspond to the through holes, the clamping hooks penetrate through the through holes and are clamped with the headrest, and the clamping hooks are slidably arranged in the through holes.

6. The headrest height adjustment mechanism of claim 1, wherein: the headrest is provided with a groove, the adjusting pulling plate is provided with a convex column, the convex column extends into the groove, and an elastic part is arranged between the upper part of the convex column and the side wall of the groove.

7. The headrest height adjustment mechanism of claim 1, wherein: the pair of gear blocks are connected through a connecting rod, and the connecting rod is positioned between the adjusting pulling plate and the headrest.