CN211641926U - Headrest height adjusting mechanism - Google Patents
Headrest height adjusting mechanism Download PDFInfo
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- CN211641926U CN211641926U CN201922218535.7U CN201922218535U CN211641926U CN 211641926 U CN211641926 U CN 211641926U CN 201922218535 U CN201922218535 U CN 201922218535U CN 211641926 U CN211641926 U CN 211641926U
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- headrest
- backrest
- locking rod
- waist hole
- mechanism according
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Abstract
The utility model relates to a children's safety seat technical field discloses a headrest height adjusting mechanism, including: a backrest having a plurality of capture slots; a headrest assembly movably disposed on the backrest; the headrest assembly is provided with a locking rod which is movably arranged in the locking grooves and can be locked into different locking grooves so as to adjust the height of the headrest assembly relative to the backrest; an adjusting member provided on the headrest assembly for driving the lock lever; an elastic part is arranged between the adjusting part and the headrest assembly. The utility model has the advantages that the adjusting piece directly drives the locking rod to lock and unlock the headrest, the adjustment is convenient and fast, and the transmission is rapid; the whole structure is simple, and the unlocking and locking are reliable.
Description
Technical Field
The utility model relates to a children's safety seat technical field especially relates to a headrest height adjusting mechanism.
Background
For different infants, the height of the head relative to the child safety seat is different, so the height of the headrest needs to be adjustable to adapt to infants with different heights. When the height does not need to be adjusted, the headrest is locked on the child safety seat; when the height needs to be adjusted, the height of the headrest is adjusted up and down after the headrest structure is unlocked.
Most of existing headrest height adjusting mechanisms adopt a lifting unlocking type to realize height adjustment, and the existing headrest height adjusting mechanisms are relatively complex in structure and various in parts; and the height adjustment is realized by partially pressing and unlocking, but the problems of incomplete unlocking or slow return of the lock rod due to too large unlocking distance often occur.
For example, publication No. CN201240292Y discloses a headrest adjusting mechanism for a child safety seat of an automobile. The mechanism comprises a backrest and a headrest, wherein the headrest is inserted into a slot at the top of the backrest through an inserting plate connected to the lower part of the headrest, and can extend up and down in the slot; the middle part of the adjusting lever is hinged with the inserting plate through a hinge shaft to form a rotating fulcrum; the upper section of the adjusting lever is positioned behind the headrest, and a compression spring is arranged between the upper section of the adjusting lever and the back surface of the headrest; the hypomere of adjusting lever is located between picture peg front side and the slot inner wall, is provided with a horizontal pole at adjusting lever's lower extreme, and it has a recess that can make the horizontal pole be absorbed in to open on the picture peg with horizontal pole relative position, has set gradually a plurality of horizontal regulation notches that can supply the horizontal pole to get into from last to down on the slot inner wall in the horizontal pole the place ahead simultaneously. The mechanism limits the movement distance of the cross rod, the problems of incomplete unlocking and overlarge unlocking distance easily occur, and the adjusting structure is unreliable.
In order to overcome the defects of the conventional child safety seat that the height of the headrest is adjusted, a headrest height adjuster which is rapid in transmission and reliable in unlocking and locking needs to be designed.
SUMMERY OF THE UTILITY MODEL
The above-mentioned not enough to prior art, the utility model aims to solve the technical problem that, provide a transmission rapidly, and unblock, the reliable headrest altitude mixture control ware of locking.
The utility model provides a technical scheme that its technical problem adopted is, provides a headrest height adjusting mechanism, including:
a backrest having a plurality of capture slots;
a headrest assembly movably disposed on the backrest; the headrest assembly is provided with a locking rod which is movably arranged in the locking grooves and can be locked into different locking grooves so as to adjust the height of the headrest assembly relative to the backrest;
the adjusting piece is arranged on the headrest assembly and used for driving the position locking rod; an elastic part is arranged between the adjusting part and the headrest assembly.
Furthermore, the adjusting piece is hinged to the headrest assembly, one end of the adjusting piece is a pressing part, and the other end of the adjusting piece is a driving support; the driving bracket is connected with the locking rod.
Furthermore, a positioning bulge is arranged on the pressing part and/or the headrest component, and the elastic piece is sleeved on the positioning bulge; one end of the elastic piece is propped against the pressing part, and the other end of the elastic piece is propped against the headrest assembly.
Furthermore, a first waist hole is formed in the driving bracket; the position locking rod is movably arranged in the first waist hole in a penetrating mode.
Furthermore, the headrest assembly comprises a headrest support and a headrest arranged on the headrest support, and the headrest support is arranged on the backrest; the headrest supports are provided with an accommodating groove, and the pressing portion is arranged in the accommodating groove.
Further, the headrest assembly further comprises a slide; the headrest support and headrest are at a front side of the backrest; the sliding seat is arranged on the rear side of the backrest and is connected with the headrest support; and a second waist hole is formed in the sliding seat, and the position locking rod is also arranged in the second waist hole in a penetrating manner.
Further, the length direction of the second waist hole is perpendicular to the length direction of the first waist hole.
Furthermore, two through grooves are formed in the sliding seat, the number of the driving supports is two, one driving support is arranged in one through groove, and the other driving support is arranged in the other through groove.
Furthermore, the plurality of position locking grooves are arranged along the length direction of the backrest and distributed on two sides of the backrest in two rows; one sides of the two rows of the locking grooves far away from the sliding seat are provided with limiting convex strips; the slide seat is arranged between the two limiting convex strips.
Furthermore, the position locking groove comprises a bottom surface with an arc-shaped section and guide surfaces connected to two sides of the bottom surface; and the distance between the two guide surfaces is gradually increased from bottom to top.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
in the utility model, the locking rod is arranged in the first waist hole on the driving bracket and the second waist hole of the slide seat in a penetrating way, and the length direction of the first waist hole is vertical to that of the second waist hole, on one hand, when the adjusting piece drives the locking rod, the clamping stagnation is not easy to occur; on the other hand, the movement distance of the locking rod can be limited, and the situation that unlocking is incomplete or the locking rod is slow to reset is prevented. The locking grooves are symmetrically arranged, the driving supports are symmetrically arranged on the locking rods, the stress of the locking rods is balanced, and the locking is reliable; the locking groove comprises an arc-shaped bottom surface and guide surfaces connected to two sides of the bottom surface of the arc surface, the distance between the two guide surfaces is gradually increased from bottom to top, and when the locking rod is locked into the locking groove and the locking rod is withdrawn from the locking groove, the locking rod moves smoothly.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;
FIG. 3 is an exploded view of the overall structure;
FIG. 4 is a schematic view of the slider shown in FIG. 2 with the slider removed;
FIG. 5 is a schematic half-section view of FIG. 2;
fig. 6 is a schematic structural view of the adjusting member.
In the figure, the position of the upper end of the main shaft,
1. a backrest; 10. a position locking groove; 11. limiting convex strips; 101. a bottom surface; 102. a guide surface;
2. a headrest assembly; 20. a position locking rod; 21. a headrest; 22. a headrest support; 23. a slide base; 220. accommodating grooves; 231. a second waist hole; 232. a through groove;
3. an adjustment member; 30. a pressing part; 31. a drive bracket; 301. positioning the projection; 311. a first waist hole; 40. an elastic member.
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. 1 to 5, a headrest height adjusting mechanism includes: a backrest 1, a headrest assembly 2, an adjusting member 3 and an elastic member 40.
The backrest 1 is provided with a plurality of locking grooves 10, and specifically, the locking grooves 10 are arranged along the length direction of the backrest 1 and distributed on two sides of the backrest in two rows, but not limited to two rows; one side of each two rows of the position locking grooves 10 far away from the sliding seat 23 is provided with a limiting convex strip 11; the slide 23 is located between the two limit ribs 11, and when the lock bar 20 and the slide 23 move up and down, the two limit ribs 11 can limit the left and right displacement of the lock bar 20 and the slide 23. The locking groove 10 comprises a bottom surface 101 with an arc-shaped section and guide surfaces 102 connected with two sides of the bottom surface 101; and the distance between the two guiding surfaces 102 is gradually increased from bottom to top, which is equivalent to that the two guiding surfaces 102 are inclined surfaces, and when the position locking rod 20 is locked in the position locking groove 10 and unlocked from the position locking groove 10, the inclined surfaces are arranged to enable the position locking rod 20 to move smoothly.
A headrest assembly 2 movably provided on the backrest 1; the headrest assembly 2 is provided with a locking rod 20, the locking rod 20 is movably arranged in the locking groove 10, and the locking rod 20 can be locked in different locking grooves 10 to adjust the height of the headrest assembly 2 relative to the backrest 1 so as to adapt to infants with different heights.
An adjusting member 3 provided on the headrest assembly 2 for driving the position locking lever 20; an elastic member 40 is provided between the adjusting member 3 and the headrest assembly 2. The regulating member 3 is released after pressing the regulating member 3, and the elastic force of the elastic member 40 restores the regulating member.
Preferably, the adjusting member 3 is hinged to the headrest assembly 2, specifically, the adjusting member 3 is hinged to the headrest 21, and as shown in fig. 6, one end of the adjusting member 3 is a pressing part 30, and the other end is a driving bracket 31; the driving bracket 31 is connected with the locking rod 20, and specifically, the driving bracket 31 is provided with a first waist hole 311; the position locking rod 20 is movably arranged in the first waist hole 311 in a penetrating mode, in the scheme, the number of the driving supports 31 is optimal but not limited to two, the number of the first waist holes 311 is optimal but not limited to four, the two driving supports are symmetrically arranged on the position locking rod 20, force of the adjusting piece 3 acting on the position locking rod 20 is symmetrical and balanced, and when the position locking rod 20 is locked and unlocked, the situation of deflection cannot occur. The pressing portion 30 and/or the headrest assembly 2 has a positioning protrusion 301, the embodiment only describes the case where the positioning protrusion 301 is disposed on the pressing portion 30, and the elastic member 40 is sleeved on the positioning protrusion 301; one end of the elastic member 301 abuts against the pressing portion 30, and the other end of the elastic member 40 abuts against the headrest assembly 2, specifically, the headrest support 22, and the elastic member 40 is a return spring, after the pressing portion 30 of the adjusting member 3 is released, the return spring can drive the adjusting member 3 to return, and the locking lever 20 is locked into the locking slot 10.
Preferably, the headrest assembly 2 comprises a headrest support 22 and a headrest 21 arranged on the headrest support 22, wherein the headrest support 22 is arranged on the backrest 1; the headrest support 22 is provided with a receiving groove 220, the pressing portion 30 is disposed in the receiving groove 220 to prevent the adjusting member 3 from occupying extra space, and the pressing portion 30 is located at the top of the headrest support 22 to facilitate the user to adjust the height of the headrest assembly 2 by hand. Specifically, the headrest assembly 2 further comprises a slide seat 23, the headrest support 22 and the headrest 21 are positioned at the front side of the backrest 1; the sliding seat 23 is arranged at the rear side of the backrest 1 and is connected with the headrest support 22; the sliding seat 23 is provided with a second waist hole 231, the locking rod 20 is also arranged in the second waist hole 231 in a penetrating manner, the length direction of the second waist hole 231 is perpendicular to the length direction of the first waist hole 311, the locking groove 10 is limited in the first waist hole 311 and the second waist hole 231, the movement distance of the locking rod 20 can be limited, and it is ensured that when the adjusting piece 3 drives the locking rod 20 to move, unlocking is not in place or the movement distance of the locking rod 20 is too large, so that the resetting process of the locking rod 20 is slow. Two through grooves 232 are formed in the sliding seat 23, the number of the driving brackets 31 is two, one driving bracket 31 is arranged in one through groove 232, the other driving bracket 31 is arranged in the other through groove 232, and the driving brackets 31 penetrate through the through grooves 232 from the front side of the headrest support 22 to the back side of the headrest support 22 and are connected with the locking rods 20.
The headrest height adjusting mechanism is simple in structure, and when the adjusting piece directly drives the position locking rod to lock and unlock the headrest, the adjustment is convenient and fast, and the transmission is rapid; and the whole structure of the headrest height adjusting mechanism is simple.
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 may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. A headrest height adjusting mechanism is characterized by comprising:
a backrest having a plurality of capture slots;
a headrest assembly movably disposed on the backrest; the headrest assembly is provided with a locking rod which is movably arranged in the locking grooves and can be locked into different locking grooves so as to adjust the height of the headrest assembly relative to the backrest;
the adjusting piece is arranged on the headrest assembly and used for driving the position locking rod; an elastic part is arranged between the adjusting part and the headrest assembly.
2. The headrest height adjusting mechanism according to claim 1, wherein said adjusting member is hinged to said headrest assembly, and one end of the adjusting member is a pressing portion and the other end is a driving bracket; the driving bracket is connected with the locking rod.
3. The headrest height adjusting mechanism according to claim 2, wherein the pressing portion and/or the headrest member has a positioning projection, and the elastic member is fitted over the positioning projection; one end of the elastic piece is propped against the pressing part, and the other end of the elastic piece is propped against the headrest assembly.
4. The headrest height adjusting mechanism according to claim 2, wherein the driving bracket is provided with a first waist hole; the position locking rod is movably arranged in the first waist hole in a penetrating mode.
5. The headrest height adjusting mechanism according to claim 4, wherein the headrest assembly comprises a headrest support and a headrest arranged on the headrest support, and the headrest support is arranged on the backrest; the headrest supports are provided with an accommodating groove, and the pressing portion is arranged in the accommodating groove.
6. The headrest height adjustment mechanism of claim 5, wherein said headrest assembly further comprises a slide; the headrest support and headrest are at a front side of the backrest; the sliding seat is arranged on the rear side of the backrest and is connected with the headrest support; and a second waist hole is formed in the sliding seat, and the position locking rod is also arranged in the second waist hole in a penetrating manner.
7. The headrest height adjustment mechanism according to claim 6, wherein a longitudinal direction of said second waist hole is perpendicular to a longitudinal direction of said first waist hole.
8. A headrest height adjustment mechanism according to claim 6, wherein two through slots are provided in said slide, said drive brackets being two in number, one drive bracket being disposed in one through slot and the other drive bracket being disposed in the other through slot.
9. A headrest height adjustment mechanism according to claim 6, 7 or 8 wherein a plurality of said capture slots are provided along the length of the backrest and are distributed in two rows on either side of the backrest; one sides of the two rows of the locking grooves far away from the sliding seat are provided with limiting convex strips; the slide seat is arranged between the two limiting convex strips.
10. The headrest height adjusting mechanism according to claim 1, wherein the catching groove includes a bottom surface having an arc-shaped cross section, and guide surfaces connected to both sides of the bottom surface; and the distance between the two guide surfaces is gradually increased from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922218535.7U CN211641926U (en) | 2019-12-11 | 2019-12-11 | Headrest height adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922218535.7U CN211641926U (en) | 2019-12-11 | 2019-12-11 | Headrest height adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211641926U true CN211641926U (en) | 2020-10-09 |
Family
ID=72695686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922218535.7U Active CN211641926U (en) | 2019-12-11 | 2019-12-11 | Headrest height adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211641926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022084902A1 (en) | 2020-10-22 | 2022-04-28 | Bambino Prezioso Switzerland Ag | Shoulder strap width adjustment mechanism and child safety seat |
-
2019
- 2019-12-11 CN CN201922218535.7U patent/CN211641926U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022084902A1 (en) | 2020-10-22 | 2022-04-28 | Bambino Prezioso Switzerland Ag | Shoulder strap width adjustment mechanism and child safety seat |
| DE112021005536T5 (en) | 2020-10-22 | 2023-08-10 | Bambino Prezioso Switzerland Ag | WIDTH ADJUSTMENT MECHANISM FOR SHOULDER HARNESS AND CHILD SAFETY SEAT |
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