CN222194561U - Seat headrest - Google Patents

Abstract

The utility model discloses a seat headrest, which is characterized by comprising a headrest frame, a headrest swing arm and a headrest lifting adjusting assembly, wherein the headrest lifting adjusting assembly is arranged on a backrest, one end of the headrest swing arm is hinged with the headrest frame, the other end of the headrest swing arm is rotationally connected with the headrest lifting adjusting assembly, a positioning end head is arranged at the end part of the headrest swing arm, an angle adjusting and positioning assembly and a rotating shaft are arranged in the positioning end head, the rotating shaft is connected with the headrest lifting adjusting assembly, the angle adjusting and positioning assembly comprises an arc plate movably arranged on the inner wall of the positioning end head, a first wavy surface and a corresponding first convex rib are arranged between the rotating shaft and the arc plate, and the rotating angle of the rotating shaft can be limited by the cooperation of the first convex rib and the first wavy surface. The utility model has good stability and convenient operation and adjustment.

Description

Seat headrest

Technical Field

The utility model relates to the technical field of seats, in particular to a seat headrest.

Background

Existing seat headrests are commonly used as a seat fitting, with the headrest secured to the seat. The same office chair is often fixed in size, but the office chair of the same style may face users of different heights and body types, and particularly, it is difficult to have good support for the head, which reduces user experience. Therefore, some improvements are also made by those skilled in the art, such as CN 220236457U, which discloses a T-support system for an ergonomic chair, including a headrest assembly, a seatback assembly, a lumbar support assembly, and an armrest assembly, wherein the headrest assembly is mounted on the top of the seatback assembly and is used for supporting the head, the seatback assembly is used for supporting the back, the lumbar support assembly is mounted on the seatback assembly at a position near the middle, the lumbar support assembly is used for supporting the waist, one end of the armrest assembly is fixedly connected with the seatback assembly and is used for supporting the elbow, the headrest assembly, the lumbar support assembly, and the armrest assembly can adjust the position and angle of the armrest assembly, the seatback assembly can adjust the position of the headrest assembly, the headrest assembly includes a headrest, a headrest adjusting device, one end of the headrest adjusting device is connected with the headrest, and the other end of the headrest adjusting device is connected with the seatback assembly, and the headrest adjusting device can adjust the headrest up and down, adjust the headrest forward and backward, and rotate in a biaxial rotation by 4 dimensions. This patent forehead mechanism all increases regulatory function on the headrest, the back of the chair, waist lean on and the handrail of office chair, lets the user can adjust the comfort level that is fit for oneself according to self height size in the use, has effectively solved current office chair and can not adapt to the pain point of different heights and size users completely. However, the disadvantage is that the front and rear brackets of the headrest adjusting device mainly achieve the front and rear adjustment of the headrest, but the inclination angle of the headrest cannot be changed, and therefore, further improvements are necessary to the prior art.

Disclosure of Invention

The utility model aims to solve the defects of the prior art and provides a seat headrest which is stable, reliable, convenient to adjust and use.

The utility model adopts the following technical scheme to realize the aim, and is characterized by comprising a headrest frame, a headrest swing arm and a headrest lifting adjusting assembly, wherein the headrest lifting adjusting assembly is arranged on a backrest, one end of the headrest swing arm is hinged with the headrest frame, and the other end of the headrest swing arm is rotatably connected with the headrest lifting adjusting assembly.

The end of the headrest swing arm is provided with a positioning end, an angle adjusting and positioning assembly and a rotating shaft are arranged in the positioning end, the rotating shaft is connected with the headrest lifting and positioning assembly, the angle adjusting and positioning assembly comprises an arc plate movably arranged on the inner wall of the positioning end, a first wavy surface and a corresponding first convex rib are arranged between the rotating shaft and the arc plate, and the rotating angle of the rotating shaft can be limited through the cooperation of the first convex rib and the first wavy surface.

As a further explanation of the scheme, the headrest lifting adjusting assembly comprises a headrest lifting adjusting rod and an adjusting rod sleeve, the headrest lifting adjusting rod is movably inserted into the adjusting rod sleeve, a plurality of positioning hole grooves are formed in the telescopic direction of the headrest lifting adjusting rod, and corresponding marbles are arranged in the adjusting rod sleeve.

Further, the headrest lifting adjusting rod is sleeved with a transverse handle, the transverse handle is provided with hooks at two sides extending towards the backrest, and the backrest is provided with a concave position corresponding to the hooks.

Further, the articulated end of headrest swing arm and headrest frame is provided with the connection end, and the headrest frame is provided with the concave position that corresponds with the connection end, and the concave position is embedded to have the arc backing plate, and the arc backing plate has the second wave face, and the connection end is provided with the second protruding muscle that corresponds with the second wave face.

Further, the back of arc backing plate is provided with two at least outside protruding muscle that extend, and the concave position is provided with protruding muscle unsmooth matched with recess.

Further, the positioning end head comprises two side ring pieces which are distributed left and right, a space is reserved between the two side ring pieces, a cylindrical end head is arranged at the end part of the headrest lifting adjusting rod, and the two side ring pieces are respectively arranged at two sides of the cylindrical end head.

Further, the inner wall of the ring piece is provided with a groove for installing an arc embedding plate, the arc embedding plate is matched with the groove in a clamping way, the end part of the rotating shaft is provided with a positioning lug, and the positioning lug is movably clamped with the end part of the groove.

The beneficial effects achieved by adopting the technical proposal of the utility model are that.

The utility model adopts a seat headrest structure mainly composed of a headrest frame, a headrest swing arm and a headrest lifting adjusting component, wherein the headrest lifting adjusting component is arranged on a backrest, one end of the headrest swing arm is hinged with the headrest frame, the other end of the headrest swing arm is rotationally connected with the headrest lifting adjusting component, a positioning end head is arranged at the end part of the headrest swing arm, an angle adjusting and positioning component and a rotating shaft are arranged in the positioning end head, the rotating shaft is connected with the headrest lifting adjusting component, the angle adjusting and positioning component comprises an arc plate movably arranged on the inner wall of the positioning end head, a first wavy surface and a corresponding first convex rib are arranged between the rotating shaft and the arc plate, and the rotating angle of the rotating shaft can be limited by the cooperation of the first convex rib and the first wavy surface, so that the headrest frame can be lifted and adjusted, the use requirement can be met, and the comfort of a user can be improved.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of a connection structure between a headrest swing arm and a headrest lifting adjustment assembly according to the present utility model.

Fig. 3 is a schematic structural view of a headrest swing arm and headrest lifting adjustment assembly.

Fig. 4 is a schematic view of a headrest swing arm structure.

Fig. 5 is a schematic diagram of a connection structure between a rotating shaft and an arc plate.

The reference numeral shows that 1, a headrest frame 2, a headrest swing arm 2-1, a positioning end head 2-11, a groove position 2-2, an angle adjusting and positioning assembly 2-21, an arc plate 2-22, a first wavy surface 2-23, a first convex rib 2-3, a rotating shaft 2-31, a positioning convex block 3, a headrest lifting and adjusting assembly 3-1, a headrest lifting and adjusting rod 3-11, a positioning hole groove 3-12, a cylindrical end head 3-2, an adjusting rod sleeve 4, a backrest 5, a transverse handle 5-1, a clasp 6, an arc base plate 6-1, a second wavy surface 6-2 and a convex rib.

Detailed Description

In the description of the present utility model, it should be noted that, for the azimuth words such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present utility model that the device or element referred to must have a specific azimuth configuration and operation.

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

In the present utility model, unless explicitly stated or limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, directly connected, or connected via an intermediate medium, or two elements may be in communication. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "below," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply representing the first feature as having a higher level than 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 simply indicating that the first feature is level below the second feature.

The following description of the specific embodiments of the present utility model is further provided with reference to the accompanying drawings, so that the technical scheme and the beneficial effects of the present utility model are more clear and definite. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the utility model and are not to be construed as limiting the utility model.

As shown in fig. 1 to 5, the present utility model is a seat headrest, which includes a headrest frame 1, a headrest swing arm 2, and a headrest lifting adjustment assembly 3, wherein the headrest frame 1 is generally provided with a headrest cushion for improving comfort. The headrest lifting adjusting assembly 3 is arranged on the backrest 4, the headrest lifting adjusting assembly 3 comprises a headrest lifting adjusting rod 3-1 and an adjusting rod sleeve 3-2, the adjusting rod sleeve 3-2 is fixed on the backrest 4, the headrest lifting adjusting rod 3-1 is movably inserted into the adjusting rod sleeve 3-2, a plurality of positioning hole grooves 3-11 are formed in the telescopic direction of the headrest lifting adjusting rod 3-1, and corresponding marble is arranged in the adjusting rod sleeve 3-2. The headrest lifting adjusting rod is sleeved with a transverse handle 5, the transverse handle is provided with two side hooks 5-1 extending towards the backrest, and the backrest is provided with concave positions corresponding to the hooks, so that the two hooks can be firmly fixed into a whole.

The whole headrest swing arm 2 is arc, and headrest swing arm 2's one end is articulated with headrest frame 1, and the other end is connected with headrest lift adjustment subassembly 3 rotation. The end part of the headrest swing arm 2 is provided with a positioning end head 2-1, an angle adjusting and positioning assembly 2-2 and a rotating shaft 2-3 are arranged in the positioning end head 2-1, and the rotating shaft is connected with the headrest lifting and adjusting assembly. The positioning end head 2-2 comprises two side ring pieces which are distributed left and right, a space is reserved between the two side ring pieces, a cylindrical end head 3-12 is arranged at the end part of the headrest lifting adjusting rod 3-1, and the two side ring pieces are respectively arranged at two sides of the cylindrical end head.

The angle adjusting and positioning assembly 2-2 comprises an arc plate 2-21 movably arranged on the inner wall of the positioning end, a first wavy surface 2-22 and a corresponding first convex rib 2-23 are arranged between the rotating shaft 2-3 and the arc plate 2-21, and the rotating angle of the rotating shaft can be limited through the cooperation of the first convex rib and the first wavy surface. The inner wall of the ring piece is provided with a slot 2-11 for installing an arc embedding plate, the arc embedding plate is matched with the slot in a clamping way, the end part of the rotating shaft is provided with a positioning lug 2-31, and the positioning lug is movably clamped with the end part of the slot.

The hinged end of the headrest swing arm 2 and the headrest frame is provided with a connecting end head 2-3, the headrest frame is provided with a concave position corresponding to the connecting end head, an arc-shaped base plate 6 is embedded in the concave position, the arc-shaped base plate is provided with a second wavy surface 6-1, and the connecting end head is provided with a second convex rib corresponding to the second wavy surface. The back of the arc-shaped backing plate is provided with at least two outwards extending convex ribs 6-2, and the concave position is provided with concave-convex matched grooves of the convex ribs.

Compared with the prior art, the headrest swing arm is arranged between the headrest frame and the headrest lifting adjusting component, so that the headrest frame can rotate relative to the headrest swing arm, the headrest swing arm can swing relative to the headrest lifting adjusting component, the angle is adjustable and can be locked, the operation and the use are convenient, and the requirements of users can be met.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present utility model.

Claims (5)

1. The seat headrest is characterized by comprising a headrest frame, a headrest swing arm and a headrest lifting adjusting assembly, wherein the headrest lifting adjusting assembly is arranged on a backrest, one end of the headrest swing arm is hinged with the headrest frame, and the other end of the headrest swing arm is rotatably connected with the headrest lifting adjusting assembly;

The end part of the headrest swing arm is provided with a positioning end head, an angle adjusting and positioning assembly and a rotating shaft are arranged in the positioning end head, the rotating shaft is connected with the headrest lifting and positioning assembly, the angle adjusting and positioning assembly comprises an arc plate movably arranged on the inner wall of the positioning end head, and a first wave surface and a corresponding first convex rib are arranged between the rotating shaft and the arc plate;

The connecting end is arranged at the hinged end of the headrest swing arm and the headrest frame, the headrest frame is provided with a concave position corresponding to the connecting end, an arc-shaped base plate is embedded in the concave position, the arc-shaped base plate is provided with a second wavy surface, and the connecting end is provided with a second convex rib corresponding to the second wavy surface; the back of arc backing plate is provided with two at least outside protruding muscle that extend, and the concave position is provided with protruding muscle unsmooth matched with recess.

2. The seat headrest according to claim 1, wherein the headrest lifting adjusting assembly comprises a headrest lifting adjusting rod and an adjusting rod sleeve, the headrest lifting adjusting rod is movably inserted into the adjusting rod sleeve, a plurality of positioning hole grooves are formed in the telescopic direction of the headrest lifting adjusting rod, and corresponding marble is arranged in the adjusting rod sleeve.

3. A seat headrest according to claim 2 wherein the headrest lifting adjustment bar is provided with a lateral handle, the lateral handle being provided with two side hooks extending towards the backrest, the backrest being provided with recesses corresponding to the hooks.

4. The seat headrest according to claim 1, wherein the positioning end comprises two side ring members distributed left and right with a space therebetween, the end of the headrest lifting adjusting rod is provided with a cylindrical end, and the two side ring members are respectively arranged at two sides of the cylindrical end.

5. The seat headrest according to claim 4, wherein the inner wall of the ring is provided with a slot for accommodating the arc plate, the arc plate is engaged with the slot, the end of the rotating shaft is provided with a positioning projection, and the positioning projection is engaged with the end of the slot.