CN217243371U

CN217243371U - Lifting adjusting mechanism of headrest

Info

Publication number: CN217243371U
Application number: CN202220317191.4U
Authority: CN
Inventors: 廖建甜
Original assignee: Foshan Hengfa Furniture Technology Co ltd
Current assignee: Foshan Hengfa Furniture Technology Co ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-08-23
Anticipated expiration: 2032-02-17

Abstract

The utility model discloses a lift adjustment mechanism of headrest, a serial communication port, it includes fixing base, lifter be connected with the seat main part, corresponds the lifter positioning seat of being connected with the fixing base, is provided with the spout that corresponds with the lifter positioning seat in the lifter, and the spout inboard is provided with tooth, is provided with elasticity joint subassembly and tooth activity joint cooperation in the lifter positioning seat. The utility model discloses simple structure, the operation is adjusted conveniently.

Description

Lifting adjusting mechanism of headrest

Technical Field

The utility model relates to the technical field of seats, more specifically relate to a lift adjustment mechanism of seat headrest.

Background

The existing seat headrest is generally used as an accessory of a seat, and the headrest is fixed to the seat. The invention discloses a novel multifunctional headrest, which comprises a cylindrical fixing piece, a clothes hanger, a lifting rod, a headrest rotating shaft with a gear adjusting function and a headrest body, wherein a spring A is fixed on the inner wall of the fixing piece, the other end of the spring A is connected with a convex positioning piece A, the bottom of the positioning piece A is connected with the spring A, the top of the positioning piece A is provided with an arc-shaped bulge, the lower part of the lifting rod penetrates through the positioning piece A, a wavy slide way A is arranged on one side face of the positioning piece A, the slide way A is in sliding connection with the bulge, the top of the lifting rod is in rotating connection with the headrest body through two rotating arms of the headrest rotating shaft, the clothes hanger comprises a supporting frame and airing rods fixed on two sides of the supporting frame, and the supporting frame is detachably connected with the fixing piece. The structure of the patent enables the seat headrest to be rotatably adjusted according to the habit of a user, but has the defect that the height of the seat headrest cannot be adjusted and needs to be further improved.

Disclosure of Invention

The utility model aims at providing a simple structure, convenient operation regulation's lift adjustment mechanism of headrest for solving prior art not enough.

The utility model discloses an adopt following technical solution to realize above-mentioned purpose: the utility model provides a lift adjustment mechanism of headrest which characterized in that, it includes the fixing base of being connected with the seat main part, lifter, corresponds the lifter positioning seat of being connected with the fixing base, is provided with the spout that corresponds with the lifter positioning seat in the lifter, and the spout inboard is provided with tooth, is provided with elasticity joint subassembly and tooth activity joint cooperation in the lifter positioning seat.

As a further explanation of the above scheme, the elastic clamping assembly comprises a pawl hinged with the lifting rod positioning seat, a spring connected to the pawl, and the pawl is movably clamped with teeth of the sliding groove.

Furthermore, the bottom of the sliding groove is provided with a linear groove hole, the bottom of the lifting rod positioning seat is provided with a protruding part which is matched with the linear groove hole in a concave-convex mode, and the protruding part is fixedly connected with the fixing seat through a fastening piece.

Further, the fixing base comprises an upper hook hanging piece and a lower supporting piece which are connected in a combined mode, a clamping groove portion and a protruding portion which are connected in a matched mode are arranged between the upper hook hanging piece and the lower supporting piece, and a fastening piece is arranged on the clamping groove portion and the protruding portion and connected fixedly.

Furthermore, the supporting piece is provided with a convex block protruding upwards, and the convex block is in press fit with a backrest cross rod of the seat main body, so that the firmness of connection is enhanced.

Furthermore, the outer sleeve rod is sleeved outside the lifting rod, the end part of the outer sleeve rod is provided with a headrest connecting end, and the headrest is hinged with the headrest connecting end through a hinge shaft.

Furthermore, the headrest is provided with a connecting groove corresponding to the headrest connecting end, the hinge shaft is arranged in the connecting groove, a baffle is arranged in the connecting groove, and the headrest connecting end is provided with an arc surface in rotating contact with the baffle.

Further, the baffle is the arc, and the baffle is provided with the tooth section with the contact surface that the headrest is connected the end, and the cambered surface is provided with tooth cooperation section and the unsmooth cooperation of tooth section.

The utility model adopts the beneficial effect that above-mentioned technical solution can reach is.

The utility model discloses a headrest lift adjustment structure that mainly comprises fixing base, lifter, the lifter positioning seat that corresponds with the fixing base be connected with the seat main part, is provided with the spout that corresponds with the lifter positioning seat in the lifter, and the spout inboard is provided with tooth, is provided with elasticity joint subassembly and tooth activity joint cooperation in the lifter positioning seat, realizes the activity joint location of headrest lift adjustment, and easy operation is convenient.

Drawings

Fig. 1 is a schematic structural view of the headrest lifting adjustment mechanism of the present invention.

Fig. 2 is an exploded schematic view of the headrest lift adjustment mechanism of the present invention.

Fig. 3 is a schematic view of the headrest structure of the present invention.

Description of the reference numerals: 1. the device comprises a fixed seat 1-1, an upper hook hanger 1-2, a lower support piece 1-21, a bump 2, a lifting rod 2-1, a sliding groove 2-11, a linear groove hole 2-2, teeth 3, a lifting rod positioning seat 3-1, a protruding part 4, a pawl 4-1, a spring positioning shaft rod 5, a spring 6, an outer sleeve rod 6-1, a headrest connecting end 7, a headrest 7-1, a connecting groove 8 and a baffle.

Detailed Description

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

Furthermore, if any, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.

The following description will be further made in conjunction with the accompanying drawings of the specification, so that the technical solution and the advantages of the present invention are clearer and clearer. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

As shown in fig. 1-3, the utility model relates to a lifting adjusting mechanism for headrest, which comprises a fixing base 1 connected with the seat body, a lifting rod 2, and a lifting rod positioning base 3 correspondingly connected with the fixing base, wherein a sliding groove 2-1 corresponding to the lifting rod positioning base is arranged in the lifting rod, a plurality of teeth 2-2 are arranged on the inner side of the sliding groove, and the teeth are distributed along the side of the sliding groove. The elastic clamping assembly comprises a pawl 4 hinged with the lifting rod positioning seat, a spring 5 connected to the pawl, and the pawl is movably clamped with teeth of the sliding groove. The pawl is provided with a spring positioning shaft lever 4-1, one end of the spring is in jacking fit with the lifting rod positioning seat, and the other end of the spring is sleeved on the spring positioning shaft lever.

Furthermore, the bottom of the sliding groove is provided with a linear groove hole 2-11, the bottom of the lifting rod positioning seat is provided with a convex part 3-1 which is in concave-convex fit with the linear groove hole, and the convex part is connected and fixed with the fixing seat through a fastening piece. The fixing seat comprises an upper hook hanging piece 1-1 and a lower supporting piece 1-2 which are combined and connected into a whole, a clamping groove part and a convex part which are mutually matched and connected are arranged between the upper hook hanging piece and the lower supporting piece, and the clamping groove part and the convex part are provided with fasteners for connection and fixation. The clamping groove part comprises two clamping grooves which are arranged in parallel, the convex parts are movably embedded into the clamping grooves, the supporting piece is provided with convex protrusions 1-21 which are upwards protruded and matched with a backrest cross rod of the seat main body in a jacking mode, and the firmness of connection is enhanced.

The outer loop bar 6 is sleeved outside the lifting rod, the outer loop bar is L-shaped integrally, the end part of the outer loop bar is provided with a headrest connecting end 6-1, and the headrest is hinged with the headrest connecting end through a hinge shaft. The headrest 7 is provided with a connecting groove 7-1 corresponding to the headrest connecting end, the hinge shaft is arranged in the connecting groove, a baffle 8 is arranged in the connecting groove, and the headrest connecting end is provided with an arc surface which is in rotary contact with the baffle. The baffle is the arc, and the baffle is provided with the tooth section with the contact surface that the headrest is connected the end, and the cambered surface is provided with tooth cooperation section and the unsmooth cooperation of tooth section.

Compared with the prior art, the utility model, be connected fixedly through fixing base and seat main part to set up lifter, lifter positioning seat on the fixing base, make the lifter can slide from top to bottom relative to the fixing base, in order to increase lift adjustment's stability, set up spout and corresponding tooth in the lifter, utilize elasticity joint subassembly and tooth activity joint cooperation, realize headrest lift adjustment's activity joint location, easy operation is convenient.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. The utility model provides a lift adjustment mechanism of headrest which characterized in that, it includes the fixing base of being connected with the seat main part, the lifter, corresponds the lifter positioning seat of being connected with the fixing base, is provided with the spout that corresponds with the lifter positioning seat in the lifter, and the spout inboard is provided with tooth, is provided with elasticity joint subassembly and tooth activity joint cooperation in the lifter positioning seat.

2. The headrest lifting adjusting mechanism according to claim 1, wherein the elastic clamping assembly includes a pawl hinged to the positioning seat of the lifting rod, a spring connected to the pawl, and the pawl is movably clamped to the teeth of the sliding groove.

3. The headrest lifting adjusting mechanism as claimed in claim 1, wherein the slot has a linear slot at a bottom thereof, the lifter positioning seat has a protrusion at a bottom thereof for engaging with the linear slot, and the protrusion is fixed to the fixing seat by a fastener.

4. The headrest lifting adjusting mechanism according to claim 1, wherein the fixing base comprises an upper hook member and a lower support member integrally connected, a slot portion and a protruding portion are disposed between the upper hook member and the lower support member, and the slot portion and the protruding portion are connected and fixed by a fastener.

5. The headrest lifting adjustment mechanism according to claim 4, wherein the holder is provided with a projection projecting upward.

6. The headrest lifting/lowering adjustment mechanism as claimed in claim 1, wherein the outer rods are provided around the lifting rods, and the ends of the outer rods are provided with headrest connection ends, and the headrest connection ends are hinged by means of hinge shafts.

7. The mechanism of claim 6, wherein the headrest is provided with a coupling groove corresponding to the coupling end of the headrest, the hinge shaft is disposed in the coupling groove, the coupling groove is provided with a baffle, and the coupling end of the headrest is provided with an arc surface in rotational contact with the baffle.

8. The headrest lifting adjusting mechanism according to claim 7, wherein the baffle is arc-shaped, a tooth section is provided on a contact surface of the baffle and the headrest connecting end, and a tooth matching section and a tooth section are arranged on the arc-shaped surface and are in concave-convex matching.