CN219762874U

CN219762874U - Height-adjustable headrest

Info

Publication number: CN219762874U
Application number: CN202320899787.4U
Authority: CN
Inventors: 温剑
Original assignee: Fujian Dafang New Material Technology Co ltd
Current assignee: Fujian Dafang New Material Technology Co ltd
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-09-29
Anticipated expiration: 2033-04-20

Abstract

The utility model discloses a height-adjustable headrest, which comprises a support frame, wherein one side of the support frame is provided with a sliding groove, a supporting plate is connected in a sliding way, one side of the supporting plate is fixedly connected with an arc-shaped elastic frame, one side of the arc-shaped elastic frame is provided with two mounting openings, an elastic net is fixedly connected in the mounting openings, the sliding groove is rotationally connected with a threaded rod, the threaded rod is in threaded connection with the supporting plate, the supporting plate is rotationally connected with a connecting shaft, and both ends of the connecting shaft penetrate through the supporting plate and are fixedly connected with a winding roller. According to the utility model, the winding roller and the pull rope are used in a matched manner, the winding roller rotates to wind the pull rope, so that the pull rope pulls the arc-shaped elastic frame, the arc-shaped elastic frame is deformed and unfolded, the arc-shaped elastic frame is suitable for a person with thicker neck, the adjusting effect of the device is improved, and the connecting shaft is fixed through the clamping mechanism, so that the using effect of the device is improved.

Description

Height-adjustable headrest

Technical Field

The utility model relates to the technical field of seats, in particular to a headrest with an adjustable height.

Background

The headrest on the seat can protect the neck of people, so that the fatigue of the neck after sitting for a long time is alleviated, and the requirements of different people on the headrest when sitting on the seat are different.

Through searching, chinese patent publication No. CN217695742U discloses a height-adjustable headrest, in which a movable support moves up and down in a movable window to drive a headrest body to move up and down. Because the positions and the heights of the necks of different people are different, the width of the headrest is also different in requirement, however, the existing headrest can only be adjusted in height, so that the use of the headrest has certain limitation.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a headrest with adjustable height.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a height-adjustable's headrest, includes the support frame, the spout has been seted up to support frame one side, and sliding connection has the fagging in the spout, and one side fixedly connected with arc type bullet frame of fagging, two installing ports have been seted up to one side of arc type bullet frame, fixedly connected with elastic net in the installing port, spout internal rotation is connected with the threaded rod, and threaded rod and fagging threaded connection, fagging internal rotation is connected with the connecting axle, and the both ends of connecting axle all pass the fagging and fixedly connected with wind-up roll, and the stay cord has been cup jointed to one side of wind-up roll, and the stay cord is fixed mutually with arc type bullet frame, one side of fagging is equipped with the block mechanism that fixes the connecting axle.

Further, the clamping mechanism comprises a plurality of clamping grooves, the clamping grooves are formed in two sides of the supporting plate, the two ends of the connecting shaft are respectively provided with a clearance groove, the clearance grooves are internally and slidably connected with limiting plates, the limiting plates are clamped with the clamping grooves, one side of each limiting plate is fixedly connected with a spring, and the springs are fixed with one side inner wall of each clearance groove.

Furthermore, two guide rods are fixedly connected in the avoidance grooves, and the guide rods are in sliding connection with the limiting plates.

Further, two ends of the two limiting plates are fixedly connected with auxiliary plates.

Further, the top of threaded rod passes the support frame and fixedly connected with knob, and a plurality of anti-skidding lines have been seted up to the circumference outside of knob.

Further, the rubber sleeve is fixedly connected with the support frame and is contacted with the knob.

Further, two connecting blocks are fixedly connected to one side of the arc-shaped elastic frame, and the connecting blocks are fixed with the supporting plates.

Further, a plurality of fixing holes are formed in one side of the supporting frame, and the fixing holes are uniformly distributed.

The beneficial effects of the utility model are as follows:

1. through the cooperation of wind-up roll and stay cord, the threaded rod rotates and makes the fagging drive arc type bullet frame and moves down along the spout, thereby make the high position of headrest obtain adjusting, then release the block mechanism, rotate the wind-up roll, the wind-up roll rotates and rolls the stay cord, thereby make the stay cord draw arc type bullet frame, thereby make arc type bullet frame take place deformation and expand, and then make arc type bullet frame be adapted to the thicker people of neck, avoid because the position height and the thickness of different people's neck are different, also have different demands to the width of headrest, however current headrest only can carry out high regulation, lead to its use to have certain limitation, the regulation effect of device has been improved.

2. Through being equipped with the block mechanism, outwards pulling limiting plate makes the limiting plate atress outwards remove along keeping away the position groove and break away from the block state with the draw-in groove, simultaneously, and the limiting plate outwards removes and makes the spring atress shorten and produce elasticity, then rotates the limiting plate, and the limiting plate rotates and drives the connecting axle through keeping away the position groove rotatory to make the connecting axle drive the wind-up roll and roll, improved the result of use of device.

3. Through the setting at keeping away the inslot installation guide bar, the guide bar can lead to the locating plate, appears the slope when avoiding the locating plate to remove, has improved the guiding effect of device.

Drawings

FIG. 1 is a schematic view of the front side of a height adjustable headrest according to the present utility model;

FIG. 2 is a schematic view of the rear side of a height-adjustable headrest according to the present utility model;

FIG. 3 is a schematic view of a partially enlarged structure of a height-adjustable headrest according to the present utility model;

fig. 4 is a schematic view of a partially sectional structure of a height-adjustable headrest according to the present utility model.

In the figure: 1. a mounting port; 2. an elastic net; 3. a fixing hole; 4. a support frame; 5. arc spring frame; 6. a connecting block; 7. a supporting plate; 8. a pull rope; 9. anti-skid lines; 10. a knob; 11. a rubber sleeve; 12. a threaded rod; 13. a chute; 14. an auxiliary plate; 15. a clamping groove; 16. a limiting plate; 17. a connecting shaft; 18. a wind-up roll; 19. a spring; 20. a guide rod; 21. a clearance groove.

Detailed Description

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present utility model, it should be understood that, if any, the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, this is for convenience of description and simplification of the description.

Referring to fig. 1-4, a headrest with adjustable height comprises a supporting frame 4, a sliding groove 13 is arranged on one side of the supporting frame 4, a supporting plate 7 is connected in a sliding way in the sliding groove 13, an arc-shaped elastic frame 5 is fixed on one side of the supporting plate 7 through bolts, two mounting openings 1 are arranged on one side of the arc-shaped elastic frame 5, an elastic net 2 is adhered in the mounting openings 1, a threaded rod 12 is connected in a rotating way in the sliding groove 13, the threaded rod 12 is in threaded connection with the supporting plate 7, a connecting shaft 17 is connected in a rotating way in the supporting plate 7, two ends of the connecting shaft 17 penetrate through the supporting plate 7 and are fixed with a winding roller 18 through bolts, a pull rope 8 is sleeved on one side of the winding roller 18, the pull rope 8 is fixed with the arc-shaped elastic frame 5, a clamping mechanism for fixing the connecting shaft 17 is arranged on one side of the supporting plate 7, when the novel headrest is used, the threaded rod 12 is rotated, the supporting plate 7 is driven by the threaded rod 12 to move downwards along the sliding groove 13, so that the height position of the headrest is adjusted, then the clamping mechanism is released, the winding roller 18 is rotated, the winding roller 18 rotates to wind the stay cord 8, so that the stay cord 8 pulls the arc-shaped elastic frame 5, the arc-shaped elastic frame 5 is deformed and unfolded, the arc-shaped elastic frame 5 is further adapted to a person with thicker neck, the situation that the width of the headrest is different due to different heights and thicknesses of the necks of different persons is avoided, however, the existing headrest can only be adjusted in height, and the use of the existing headrest is limited to a certain extent.

The clamping mechanism comprises a plurality of clamping grooves 15, the clamping grooves 15 are formed in two sides of the supporting plate 7, the two ends of the connecting shaft 17 are respectively provided with a clearance groove 21, the clearance grooves 21 are slidably connected with limiting plates 16, the limiting plates 16 are clamped with the clamping grooves 15, one sides of the limiting plates 16 are welded with springs 19, the springs 19 are fixed with one side inner wall of the clearance grooves 21, when the clamping mechanism is used, the limiting plates 16 are pulled outwards, the limiting plates 16 are forced to move outwards along the clearance grooves 21 and are separated from the clamping grooves 15, meanwhile, the limiting plates 16 move outwards, the springs 19 are forced to shorten and generate elastic force, then the limiting plates 16 are rotated, and the limiting plates 16 rotate to drive the connecting shaft 17 to rotate through the clearance grooves 21, so that the connecting shaft 17 drives the winding roller 18 to wind.

Wherein, two keep away and be fixed with guide bar 20 through the bolt in the position groove 21, and guide bar 20 and limiting plate 16 sliding connection, guide bar 20 can lead to the location to limiting plate 16, avoids limiting plate 16 to remove the time slope to appear.

Wherein, both ends of the two limiting plates 16 are fixed with the auxiliary plates 14 through bolts, and the auxiliary plates 14 facilitate pulling and pressing the limiting plates 16.

Wherein, the top of threaded rod 12 passes support frame 4 and is fixed with knob 10 through the bolt, and a plurality of anti-skidding lines 9 have been seted up to the circumference outside of knob 10, are convenient for rotate threaded rod 12 through anti-skidding line 9 and knob 10.

Wherein, the bonding of support frame 4 has rubber cover 11, and rubber cover 11 and knob 10 contact, and rubber cover 11 can increase the frictional force between knob 10 and the support frame 4, avoids threaded rod 12 to appear the rotation.

Wherein, one side of arc bullet frame 5 bonds and has two connecting blocks 6, and connecting block 6 is fixed mutually with fagging 7, and connecting block 6 can make arc bullet frame 5 more firm with fagging 7 are connected.

Wherein, a plurality of fixed orifices 3 have been seted up to one side of support frame 4, and fixed orifices 3 evenly distributed, and fixed orifices 3 are convenient for install fixedly support frame 4 and seat.

Working principle: when the headrest is used, the threaded rod 12 is rotated, the threaded rod 12 rotates to enable the supporting plate 7 to drive the arc-shaped elastic frame 5 to move downwards along the sliding groove 13, so that the height of the headrest is adjusted, then the limiting plate 16 is pulled outwards, the limiting plate 16 is enabled to move outwards along the position avoidance groove 21 and be separated from the clamping groove 15, meanwhile, the limiting plate 16 moves outwards to enable the spring 19 to be stressed to be shortened and generate elasticity, then the limiting plate 16 is rotated, the limiting plate 16 rotates to drive the connecting shaft 17 to rotate through the position avoidance groove 21, so that the connecting shaft 17 drives the wind-up roller 18 to rotate, the wind-up roller 18 rotates to wind up the stay rope 8, the stay rope 8 is enabled to pull the arc-shaped elastic frame 5, the arc-shaped elastic frame 5 is enabled to deform and expand, then the spring 19 is reset to drive the limiting plate 16 to move inwards and be clamped with the clamping groove 15 again, the wind-up roller 18 is enabled to be fixed, and further the arc-shaped elastic frame 5 is enabled to be suitable for thick people, the situation that the different people have different neck heights and thickness, and the existing headrest can be adjusted only to a certain extent.

In the description herein, it should be noted that the terms "coupled," "connected," and "connected," should be construed broadly, and may be either permanently connected, detachably connected, or integrally connected, for example, unless otherwise specifically indicated and defined; either mechanically or electrically, or directly.

Claims

1. The utility model provides a height-adjustable's headrest, includes support frame (4), its characterized in that, spout (13) have been seted up to support frame (4) one side, and sliding connection has fagging (7) in spout (13), and one side fixedly connected with arc bullet frame (5) of fagging (7), two installing ports (1) have been seted up to one side of arc bullet frame (5), fixedly connected with elastic net (2) in installing ports (1), spout (13) internal rotation is connected with threaded rod (12), and threaded rod (12) and fagging (7) threaded connection, fagging (7) internal rotation is connected with connecting axle (17), and stay cord (8) have been cup jointed in one side of fagging (18) and arc bullet frame (5) are fixed, one side of fagging (7) is equipped with the block mechanism that carries out the fixation to connecting axle (17).

2. The headrest of claim 1, wherein the clamping mechanism comprises a plurality of clamping grooves (15), the clamping grooves (15) are formed in two sides of the supporting plate (7), the two ends of the connecting shaft (17) are provided with the avoidance grooves (21), the limit plates (16) are slidably connected in the avoidance grooves (21), the limit plates (16) are clamped with the clamping grooves (15), one side of each limit plate (16) is fixedly connected with a spring (19), and the springs (19) are fixed with one side inner wall of each avoidance groove (21).

3. The headrest according to claim 2, characterized in that the guiding rods (20) are fixedly connected in the two avoidance grooves (21), and the guiding rods (20) are slidably connected with the limiting plates (16).

4. A height-adjustable headrest as claimed in claim 3, characterised in that the auxiliary plates (14) are fixedly connected to both ends of the two limiting plates (16).

5. The headrest with adjustable height according to claim 1, characterized in that the top end of the threaded rod (12) penetrates through the support frame (4) and is fixedly connected with a knob (10), and a plurality of anti-slip patterns (9) are formed on the outer side of the circumference of the knob (10).

6. A height-adjustable headrest as claimed in claim 5, characterised in that the support frame (4) is fixedly connected with a rubber sleeve (11), and the rubber sleeve (11) is in contact with the knob (10).

7. The headrest with adjustable height according to claim 1, characterized in that two connecting blocks (6) are fixedly connected to one side of the arc-shaped spring frame (5), and the connecting blocks (6) are fixed with the supporting plate (7).

8. The headrest according to claim 1, characterized in that a plurality of fixing holes (3) are provided on one side of the support frame (4), and the fixing holes (3) are uniformly distributed.