Angle adjusting assembly of sofa headrest

Abstract

The utility model discloses an angle adjusting assembly of a sofa headrest. The angle adjusting assembly comprises a mounting plate, a headrest and a pushing assembly, the mounting plate is horizontally arranged and extends along the upper end of the sofa backrest, and a plurality of mounting holes are formed in the mounting plate; the front end of the mounting plate is bent upwards to form a round pipe, and a notch connected with the upper end of the mounting plate is formed in the rear end of the round pipe; the headrest is located above the round tube, the upper end of the headrest is obliquely arranged backwards, the lower end face of the headrest is provided with an arc groove matched with the round tube, the arc groove wraps the surface of the upper end of the round tube, the front side of the lower end of the headrest is tangent to the surface of the round tube, and the circle center of the arc groove is located on the central axis of the round tube; a connecting part which enters the circular tube through the notch extends from the lower end of the headrest and is positioned behind the arc groove; a rotating shaft is mounted in the circular tube, the rotating shaft and the circular tube are coaxially arranged, and the connecting part is connected with the rotating shaft; the back of the headrest is connected with the pushing assembly, and the comfort of the headrest is improved through the headrest.

Description

Technical Field

[0001] The utility model relates to the technical field of sofas, in particular to an angle adjustment component for a sofa headrest. Background Art

[0002] In order to rotate the headrest of a sofa to meet different needs, the bottom of the headrest is usually hinged to the mounting plate, the mounting plate is installed on the sofa backrest, and then the headrest is pushed around the hinge by a pushing mechanism to rotate to adjust different angles. However, the cross section of the headrest is usually square. The connection diagram of the headrest and the mounting plate is shown in the figure. Figure 1 As shown: In order for the headrest (1) to rotate backward without hindrance, the hinge position between the headrest (1) and the mounting plate (2) is usually located at the middle rear position of the bottom of the headrest (1), or at the rear end of the bottom of the headrest (1). However, with such a connection method, when the headrest rotates backward, the bottom of the headrest rotates with it, causing the front end of the bottom of the headrest to protrude diagonally forward. As a result, when a person's head rests on the headrest, the front end of the bottom of the headrest will press against the person's head, reducing comfort; in addition, after the front end of the bottom of the headrest rotates diagonally forward, a gap will be generated between the front end of the bottom of the headrest and the mounting plate, exposing the hinge. After the head rests on the headrest, the hair will enter the gap, which can easily cause the hair to get stuck in the hinge and be difficult to pull out. Utility Model Content

[0003] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides an angle adjustment component for a sofa headrest.

[0004] In order to achieve the above technical effects, the utility model adopts the following scheme:

[0005] An angle adjustment component for a sofa headrest, comprising a mounting plate, a headrest and a pushing component;

[0006] The mounting plate is arranged horizontally and extends along the upper end of the sofa backrest, and a plurality of mounting holes are formed on the mounting plate;

[0007] The front end of the mounting plate is bent upward to form a round tube, and the rear end of the round tube is provided with a notch connected to the upper end of the mounting plate;

[0008] The headrest is located above the circular tube, and the upper end of the headrest is tilted toward the rear, the lower end surface of the headrest has an arc groove matching the circular tube, the arc groove is coated on the upper end surface of the circular tube, and the front side of the lower end of the headrest is tangent to the surface of the circular tube, and the center of the arc groove is located on the central axis of the circular tube;

[0009] The lower end of the headrest is located behind the arc groove and has a connecting portion extending through the notch and entering into the circular tube;

[0010] A rotating shaft is installed in the circular tube, the rotating shaft is coaxially arranged with the circular tube, and the connecting portion is connected to the rotating shaft;

[0011] The back of the headrest is connected to the pushing assembly.

[0012] According to a preferred technical solution, the pushing assembly includes a sliding portion, a push rod and a lifting mechanism; the sliding portion protrudes from the back of the headrest, and a strip-shaped sliding hole is horizontally penetrated through the sliding portion. The length of the strip-shaped sliding hole extends downward in parallel to the back of the headrest, and a sliding slide rod is matched in the strip-shaped sliding hole. The push rod is vertically arranged, and the upper end of the push rod is connected to the slide rod. The mounting plate has a through hole for the push rod to pass through, and the lower end of the push rod passes through the through hole and is connected to the lifting mechanism.

[0013] According to a preferred technical solution, the lifting mechanism comprises an electric push rod, which is vertically arranged, and the output end of the electric push rod is connected upward to the lower end of the push rod through a connecting frame.

[0014] According to a preferred technical solution, grooves corresponding to the sliding parts are provided on the mounting plate.

[0015] According to a preferred technical solution, a vertical guide sleeve is provided on the mounting plate, and the push rod slides through the guide sleeve.

[0016] According to a preferred technical solution, a silicone layer is glued to the front end surface of the circular tube.

[0017] Compared with the prior art, the beneficial effects are:

[0018] The utility model has a simple structure and is easy to use. The lower end of the headrest is covered on the circular tube at the front end of the mounting plate through the circular arc groove, and the front side of the lower end of the headrest is tangent to the surface of the circular tube. The rotation center of the headrest and the center of the circular arc groove are both located on the central axis of the circular tube. Therefore, when the headrest is rotated backward, the circular arc groove of the headrest always covers the surface of the circular tube and rotates. Therefore, the connection between the front side of the lower end of the headrest and the mounting plate is always a circular arc structure with a fixed position, and the lower end of the headrest will not press against the head of the person, thereby improving the comfort of the headrest. In addition, the notch of the circular tube is opened at the rear end of the circular tube, and the rotation position of the headrest is located in the circular tube. Since the circular arc groove covers the circular tube for blocking, the hair on the head will not enter the circular tube, thereby avoiding the hair from being stuck in the rotation part of the headrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the connection method between the headrest and the mounting plate in the prior art;

[0020] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0021] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of part A.

[0022] Figure numerals: 1, headrest; 2, mounting plate; 3, round tube; 4, notch; 5, arc groove; 6, rotating shaft; 7, connecting part; 8, sliding part; 9, strip sliding hole; 10, push rod; 11, connecting frame; 12, electric push rod; 13, guide sleeve; 14, groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] An angle adjustment component for a sofa headrest comprises a mounting plate 2, a headrest 1 and a pushing component; the mounting plate 2 is used to be fixedly mounted on the upper end of a sofa backrest, and then the headrest 1 is mounted on the sofa backrest, and the headrest 1 is mounted on the mounting plate 2 by rotation, so as to realize rotation on the sofa backrest, and the pushing component is used to push the headrest 1 to rotate for angle adjustment;

[0025] The mounting plate 2 is arranged horizontally and extends along the upper end of the sofa backrest. A plurality of mounting holes are provided on the mounting plate 2, and screws are driven through the mounting holes to mount the mounting plate 2.

[0026] The front end of the mounting plate 2 is bent upward to form a round tube 3, and the rear end of the round tube 3 is provided with a notch 4 connected to the upper end of the mounting plate 2, and the notch 4 communicates with the inside and outside of the round tube 3;

[0027] The headrest 1 is located above the circular tube 3, and the upper end of the headrest 1 is tilted toward the rear, and the lower end surface of the headrest 1 has an arc groove 5 matching the circular tube 3, the arc groove 5 is covered on the upper end surface of the circular tube 3, and the front side of the lower end of the headrest 1 is tangent to the surface of the circular tube 3, and the center of the arc groove 5 is located on the central axis of the circular tube 3;

[0028] The lower end of the headrest 1 is located behind the arc groove 5 and extends with a connecting portion 7 that enters into the circular tube 3 through the notch 4. A rotating shaft 6 is installed in the circular tube 3. The rotating shaft 6 is coaxially arranged with the circular tube 3. The connecting portion 7 is connected to the rotating shaft 6. The headrest 1 rotates around the rotating shaft 6 through the connecting portion 7. The rotating shaft 6 is the rotation center of the headrest 1.

[0029] The back of the headrest 1 is connected to the pushing assembly.

[0030] The lower end of the headrest 1 is covered on the circular tube 3 at the front end of the mounting plate 2 through the circular arc groove 5, and the front side of the lower end of the headrest 1 is tangent to the surface of the circular tube 3. The rotation center of the headrest 1 and the center of the circular arc groove 5 are both located on the central axis of the circular tube 3. Therefore, when the headrest 1 rotates backward, the circular arc groove 5 of the headrest 1 is always covered on the surface of the circular tube 3 and rotates. Therefore, the connection between the front side of the lower end of the headrest 1 and the mounting plate 2 is always a fixed arc structure, and the lower end of the headrest 1 will not press against the person's head, thereby improving the comfort of the headrest 1; in addition, the notch 4 of the circular tube 3 is opened at the rear end of the circular tube 3, and the rotation position of the headrest 1 is located in the circular tube 3. Moreover, since the circular arc groove 5 is covered on the circular tube 3 for blocking, the hair on the head will not enter the circular tube 3, thereby avoiding the hair from being stuck in the rotation part of the headrest 1.

[0031] A preferred technical solution, the pushing assembly includes a sliding portion 8, a push rod 10 and a lifting mechanism; the sliding portion 8 protrudes from the back of the headrest 1, and a strip sliding hole 9 is horizontally penetrated on the sliding portion 8, the length of the strip sliding hole 9 extends downward parallel to the back of the headrest 1, a sliding slide rod is matched in the strip sliding hole 9, the push rod 10 is vertically arranged, the upper end of the push rod 10 is connected to the slide rod, the slide rod is cylindrical, the mounting plate 2 has a through hole for the push rod 10 to pass through, and the lower end of the push rod 10 passes through the through hole and is connected to the lifting mechanism.

[0032] The upper end of the push rod 10 is slidably connected to the back of the headrest 1 through the slide rod and the sliding part 8, and the connection between the push rod 10 and the headrest 1 is located away from the rotation center of the headrest 1, so the push rod 10 moves up and down driven by the lifting mechanism, thereby pushing the headrest 1 to rotate.

[0033] According to a preferred technical solution, the lifting mechanism comprises an electric push rod 12 , which is vertically arranged, and an output end of the electric push rod 12 is upwardly connected to a lower end of the push rod 10 through a connecting frame 11 .

[0034] According to a preferred technical solution, grooves 14 corresponding to the sliding portion 8 are provided on the mounting plate 2 .

[0035] According to a preferred technical solution, a vertical guide sleeve 13 is provided on the mounting plate 2 , and the push rod 10 slides through the guide sleeve 13 .

[0036] According to a preferred technical solution, a silicone layer is glued to the front end surface of the circular tube 3 .

[0037] When the head rests on the headrest 1 , the head will also rest on the exposed portion of the circular tube 3 . The silicone layer can prevent the head from making hard contact with the circular tube 3 , thereby improving the comfort of the headrest 1 .

[0038] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. An angle adjustment component for a sofa headrest, characterized in that: It comprises a mounting plate (2), a headrest (1) and a pushing component; The mounting plate (2) is arranged horizontally and extends along the upper end of the sofa backrest, and a plurality of mounting holes are provided on the mounting plate (2); The front end of the mounting plate (2) is bent upward to form a round tube (3), and the rear end of the round tube (3) is provided with a notch (4) connected to the upper end of the mounting plate (2); The headrest (1) is located above the circular tube (3), and the upper end of the headrest (1) is tilted toward the rear, the lower end surface of the headrest (1) has an arc groove (5) matching the circular tube (3), the arc groove (5) is wrapped around the upper end surface of the circular tube (3), and the front side of the lower end of the headrest (1) is tangent to the surface of the circular tube (3), and the center of the arc groove (5) is located on the central axis of the circular tube (3); The lower end of the headrest (1) is located behind the arc groove (5) and has a connecting portion (7) extending through the notch (4) and entering into the circular tube (3); A rotating shaft (6) is installed in the circular tube (3), the rotating shaft (6) is coaxially arranged with the circular tube (3), and the connecting portion (7) is connected to the rotating shaft (6); The back of the headrest (1) is connected to the pushing component.

2. The angle adjustment assembly for a sofa headrest according to claim 1, characterized in that: The pushing assembly comprises a sliding part (8), a push rod (10) and a lifting mechanism; the sliding part (8) is protruding from the back of the headrest (1); a strip-shaped sliding hole (9) is horizontally penetrated on the sliding part (8); the length of the strip-shaped sliding hole (9) is parallel to the back of the headrest (1) and extends downward; a sliding rod is matched in the strip-shaped sliding hole (9); the push rod (10) is vertically arranged; the upper end of the push rod (10) is connected to the sliding rod; the mounting plate (2) has a through hole for the push rod (10) to pass through; the lower end of the push rod (10) passes through the through hole and is connected to the lifting mechanism.

3. The angle adjustment assembly of the sofa headrest according to claim 2, characterized in that: The lifting mechanism comprises an electric push rod (12), which is arranged vertically, and the output end of the electric push rod (12) is connected upward to the lower end of the push rod (10) through a connecting frame (11).

4. The angle adjustment assembly for a sofa headrest according to claim 2, characterized in that: The mounting plate (2) is provided with grooves (14) facing each other and corresponding to the sliding portion (8).

5. The angle adjustment assembly for a sofa headrest according to claim 2, characterized in that: The mounting plate (2) is provided with a vertical guide sleeve (13), and the push rod (10) matches and slides through the guide sleeve (13).

6. The angle adjustment assembly for a sofa headrest according to claim 1, characterized in that: A silica gel layer is glued to the front end surface of the circular tube (3).

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