Turnover adjusting structure of seat armrest

Abstract

The utility model relates to the technical field of seat armrests, and discloses a turnover adjusting structure of a seat armrest, which comprises an armrest arm, a connecting seat, an adjusting seat and an armrest plate, the connecting seat is mounted at the top of the armrest arm, the adjusting seat is mounted at the bottom of the armrest plate, a through hole is arranged at the bottom of the adjusting seat, and the top of the connecting seat penetrates through the through hole and extends into the adjusting seat. A connecting shaft is arranged in the middle of the connecting base, the two ends of the connecting shaft are rotationally connected with the side walls of the connecting base respectively, a limiting table is arranged at the front end of the connecting base, a locking block is arranged at the rear end of the connecting base, a cover plate covers the top of the adjusting base, the bottom of the cover plate abuts against the top of the limiting table, and a rotating wheel is rotationally connected into the adjusting base. A limiting block is arranged on one side of the rotating wheel, the bottom of the limiting block abuts against the top of the locking block, a locking groove matched with the locking block is formed in the rear end of the locking block, and a poke rod outside the adjusting base is arranged on the other side of the rotating wheel. The armrest plate can be overturned and adjusted, the operation is simple, and the structure is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of seat armrests, in particular to a flip adjustment structure of a seat armrest. Background Art

[0002] The armrest is an important part of the chair design. Its basic function is to support the hands and provide additional comfort and support for the user. With the development of society, people have higher and higher requirements for the comfort of armrests, so armrests have gradually developed from the original mechanical fixed type to adjustable type. However, the existing armrests can generally only be adjusted horizontally by sliding and lifting. The armrest board is always in a horizontal state and cannot be adjusted to a tilted state, which cannot meet people's usage needs. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a flip adjustment structure of a seat armrest, which has the advantages that the armrest plate can be adjusted to an inclined state, is easy to operate and has a stable structure.

[0004] In order to solve the above technical problems, the utility model provides a flip adjustment structure of a chair armrest, comprising an armrest arm, a connecting seat, an adjustment seat and an armrest plate, the connecting seat is installed on the top of the armrest arm, the adjustment seat is installed on the bottom of the armrest plate, the bottom of the adjustment seat is provided with a through hole, the top of the connecting seat passes through the through hole and extends into the adjustment seat, the middle part of the connecting seat is provided with a connecting shaft, the two ends of the connecting shaft are respectively rotatably connected to the side walls of the connecting seat, the adjustment seat can rotate relative to the connecting seat, the front end of the connecting seat is provided with a limit platform, and the connecting A locking block is provided at the rear end of the connecting seat, and a cover plate is provided at the top cover of the adjusting seat, and the bottom of the cover plate abuts against the top of the limit platform; a rotating wheel is rotatably connected inside the adjusting seat, a limit block is provided on one side of the rotating wheel, and the bottom of the limit block abuts against the top of the locking block, and the rotating wheel can be rotated to separate the limit block from the locking block, and a locking groove matching the locking block is provided at the rear end of the locking block, and a toggle rod is provided on the other side of the rotating wheel, and an opening is provided on the side of the adjusting seat, and the toggle rod can swing through the opening and extend out of the adjusting seat.

[0005] As a preferred solution of the utility model, an elastic protrusion is provided on the side of the rotating wheel, a positioning wall is provided in the adjusting seat, the positioning wall is provided with two limiting grooves arranged around the axis of the rotating wheel, the elastic protrusion cooperates with one of the limiting grooves, and when the rotating wheel rotates so that the elastic protrusion cooperates with the other limiting groove, the limiting block is separated from the locking block.

[0006] As a preferred solution of the utility model, the top cover of the adjustment seat is provided with a cover plate, and a first spring is provided between the top of the connecting seat and the bottom of the cover plate.

[0007] As a preferred solution of the utility model, a connecting platform is provided at the top of the armrest, the connecting seat is provided on the connecting platform and is rotatably connected to the connecting platform, an elastic component is provided at the top of the connecting platform, and a plurality of positioning grooves arranged around the axis of the connecting platform are provided at the bottom of the connecting seat, and the elastic component cooperates with one of the positioning grooves.

[0008] As a preferred solution of the utility model, a mounting groove is provided on the top of the connecting platform, and the elastic component includes a second spring and a clamping block. The second spring is provided in the mounting groove, the top end of the second spring is connected to the clamping block, and the top end of the clamping block cooperates with one of the positioning grooves.

[0009] As a preferred solution of the utility model, a connecting groove matching with the connecting platform is provided at the bottom of the connecting seat.

[0010] The utility model embodiment of a flip adjustment structure of a seat armrest has the following beneficial effects compared with the prior art: under normal circumstances, the armrest plate is in a horizontal state, the top of the limit platform abuts against the bottom of the cover plate, the bottom of the limit block abuts against the top of the locking block, the armrest plate cannot be flipped, and the armrest plate is in an initial locked state at this time; when the armrest plate needs to be flipped and adjusted, the toggle lever is swung until the rotating wheel rotates to separate the limit block from the locking block, and the front end of the armrest plate can be flipped upward, thereby adjusting the armrest plate to an inclined state; when the limit block follows the adjustment seat to flip to a position corresponding to the position of the locking groove, the toggle lever is swung to drive the rotating wheel to rotate so that the limit block is embedded in the locking groove. At this time, the adjustment seat cannot be flipped, and the armrest plate is in a tilted locked state, which helps to keep the armrest plate in a tilted state, with simple operation and stable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 It is a structural diagram of the connection between the adjustment seat, the connecting seat and the armrest of the utility model;

[0013] Figure 3 It is a cross-sectional view of the connection between the adjustment seat and the connection seat of the utility model;

[0014] Figure 4 It is a structural diagram of the limit block and the locking block of the utility model when they are in abutment with each other;

[0015] Figure 5 It is a structural diagram of the utility model when the limit block and the locking block are separated;

[0016] Figure 6 It is a structural diagram of the connecting seat of the utility model;

[0017] Figure 7 This is a structural diagram of the connecting seat of the utility model from another perspective;

[0018] Figure 8 It is a structural diagram of the connection platform of the utility model;

[0019] Fig. 9 This is a structural diagram of the handrail board of the utility model after flipping and adjustment;

[0020] Fig.10 yes Fig. 9 The internal structure diagram of the adjustment seat;

[0021] Fig.11 It is a structural diagram of a state of the armrest board of the utility model after flip adjustment and rotation adjustment;

[0022] Fig.12 It is a structural diagram of another state of the handrail board of the utility model after flip adjustment and rotation adjustment;

[0023] In the figure, 1, armrest; 11, connecting platform; 111, mounting groove; 12, elastic member; 121, clamping block; 2, connecting seat; 21, connecting shaft; 22, limiting platform; 23, locking block; 231, locking groove; 24, first spring; 25, positioning groove; 26, connecting groove; 3, adjusting seat; 31, cover plate; 32, rotating wheel; 321, limiting block; 322, toggle rod; 323, elastic protrusion; 33, opening; 34, positioning wall; 341, limiting groove; 4, armrest plate. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] like Figure 1-8 As shown, a flip adjustment structure of a chair armrest in a preferred embodiment of the utility model comprises an armrest arm 1, a connecting seat 2, an adjusting seat 3 and an armrest plate 4, the connecting seat 2 is mounted on the top of the armrest arm 1, the adjusting seat 3 is mounted on the bottom of the armrest plate 4, a through hole is provided at the bottom of the adjusting seat 3, the top of the connecting seat 2 passes through the through hole and extends into the adjusting seat 3, a connecting shaft 21 is provided at the middle part of the connecting seat 2, the two ends of the connecting shaft 21 are respectively rotatably connected to the side walls of the connecting seat 2, the adjusting seat 3 can rotate relative to the connecting seat 2, a limiting platform 22 is provided at the front end of the connecting seat 2, a locking block 23 is provided at the rear end of the connecting seat 2, a cover plate 31 is provided at the top cover of the adjusting seat 3, the cover plate 31 is mounted and fixed on the adjusting seat 3, and the bottom of the cover plate 31 abuts against the top of the limiting platform 22 Then, a rotating wheel 32 is rotatably connected in the adjusting seat 3, and a limit block 321 is provided on one side of the rotating wheel 32. The bottom of the limit block 321 abuts against the top of the locking block 23. The rotating wheel 32 can be rotated to separate the limit block 321 from the locking block 23. The rear end of the locking block 23 is provided with a locking groove 231 matching the locking block 23. A toggle rod 322 is provided on the other side of the rotating wheel 32. An opening 33 is provided on the side of the adjusting seat 3. The toggle rod 322 can swing through the opening 33 and extend out of the adjusting seat 3, that is, the width of the opening 33 is greater than the width of the toggle rod 322, thereby allowing the toggle rod 322 to swing within the range of the opening 33. By swinging the toggle rod 322, the rotating wheel 32 can be rotated, thereby moving the limit block 321.

[0027] The working principle of this embodiment is as follows: when in use, the armrest arm 1 is installed on the seat. Under normal circumstances, the armrest board 4 is in a horizontal state, the top of the limit platform 22 abuts against the bottom of the cover plate 31, preventing the front end of the adjusting seat 3 from flipping down, and the bottom of the limit block 321 abuts against the top of the locking block 23, preventing the rear end of the adjusting seat 3 from flipping down, that is, the armrest board 4 cannot be flipped, and the armrest board 4 is in an initial locked state at this time; when it is necessary to flip and adjust the armrest board 4, the toggle rod 322 is swung to make the rotating wheel 32 rotate until the rotating wheel 32 rotates to the limit block 321 and the locking block 23 are separated, at this time the locking block 23 no longer prevents the rear end of the adjusting seat 3 from flipping down, that is, the front end of the armrest board 4 can flip upward, thereby adjusting the armrest board 4 to a tilted state, such as Fig. 9 As shown, at this time, the armrest board 4 is in an upward state; when the limit block 321 follows the adjustment seat 3 to flip to its position corresponding to the position of the locking groove 231 (generally, at this time, the rear end of the adjustment seat 3 rotates to the lower limit position so that the positions of the two correspond), the swing lever 322 drives the rotating wheel 32 to rotate so that the limit block 321 is embedded in the locking groove 231, as shown in FIG. Fig.10 As shown, the adjustment seat 3 cannot be flipped over at this time, and the armrest board 4 is in a tilted locked state, which helps the armrest board 4 to remain in a tilted state and the structure is stable.

[0028] The cam 330 is engaged with the locking cam 331 when the locking cam 331 is in engagement with the locking cam 332, and the cam 330 is engaged with the locking cam 332 when the locking cam 332 is engaged.

[0029] Exemplarily, the top cover of the adjustment seat 3 is provided with a cover plate 31, and a first spring 24 is provided between the top of the connecting seat 2 and the bottom of the cover plate 31. The elastic force of the first spring 24 needs to be overcome to realize the flipping adjustment of the armrest plate 4, and the flipping adjustment has a good hand feel.

[0030] Exemplarily, a connecting platform 11 is provided at the top of the armrest 1, and a connecting seat 2 is provided on the connecting platform 11 and is rotatably connected to the connecting platform 11. Since the connecting seat 2 is connected to the adjustment seat 3 through a connecting shaft 21, the connecting seat 2 and the adjustment seat 3 can rotate together around the axis of the connecting platform 11, thereby realizing the rotation adjustment (0°-360°) of the armrest plate 4, and cooperating with the flip adjustment, the adjustable range of the armrest plate 4 is large, which can meet people's usage requirements, for example, Fig.11 As shown, through flipping and rotating adjustment, the armrest board 4 is in a state of tilting to one side. Specifically, the armrest board 4 is first flipped and adjusted to the upward state, and then the armrest board 4 is rotated to one side to adjust a certain angle (the angle is less than or equal to 90°); for example, Fig.12 As shown, the armrest board 4 is placed in a downward tilting state by flipping and rotating. Specifically, the armrest board 4 is first flipped and adjusted to an upward tilting state, and then the armrest 4 is rotated and adjusted 180°. An elastic component 12 is provided on the top of the connecting platform 11, and a plurality of positioning grooves 25 are provided on the bottom of the connecting seat 2 around the axis of the connecting platform 11. The elastic component 12 cooperates with one of the positioning grooves 25. When a force large enough to drive the connecting seat 2 to rotate is applied to the connecting seat 2, the elastic component 12 can be separated from the positioning groove 25, and the connecting seat 2 can be rotated so that the elastic component 12 cooperates with another positioning groove 25. By the cooperation between the elastic component 12 and the positioning groove 25, the connecting seat 2 can be prevented from rotating at will and its positioning can be facilitated.

[0031] Exemplarily, a mounting groove 111 is provided on the top of the connecting platform 11, and the elastic member 12 includes a second spring (not shown in the figure) and a block 121. The second spring is provided in the mounting groove 111, and the top of the second spring is connected to the block 121. The top of the block 121 cooperates with one of the positioning grooves 25. When a force large enough to drive the connecting seat 2 to rotate is applied to the connecting seat 2, the block 121 is gradually embedded in the mounting groove 111 until the block 121 is separated from the positioning groove 25. At this time, the second spring is compressed. When the connecting seat 2 rotates to a position of another positioning groove 25 corresponding to the position of the block 121, under the elastic force of the second spring, the block 121 is embedded in the positioning groove 25.

[0032] Exemplarily, a connecting groove 26 that cooperates with the connecting platform 11 is provided at the bottom of the connecting seat 2. The connecting platform 11 cooperates with the connecting groove 26 to facilitate the positioning and installation of the connecting seat 2 on the top of the armrest 1, while making the connecting structure compact.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A flip adjustment structure for a seat armrest, characterized in that: The utility model comprises an armrest, a connecting seat, an adjusting seat and an armrest plate, wherein the connecting seat is installed at the top of the armrest, the adjusting seat is installed at the bottom of the armrest plate, a through hole is provided at the bottom of the adjusting seat, the top of the connecting seat passes through the through hole and extends into the adjusting seat, a connecting shaft is provided at the middle part of the connecting seat, both ends of the connecting shaft are rotatably connected with the side walls of the connecting seat respectively, the adjusting seat can rotate relative to the connecting seat, a limiting platform is provided at the front end of the connecting seat, a locking block is provided at the rear end of the connecting seat, a cover plate is provided at the top cover of the adjusting seat, the bottom of the cover plate abuts against the top of the limiting platform, a rotating wheel is rotatably connected in the adjusting seat, a limiting block is provided at one side of the rotating wheel, the bottom of the limiting block abuts against the top of the locking block, the rotating wheel can rotate so that the limiting block is separated from the locking block, a locking groove matching the locking block is provided on a side of the locking block close to the rotating wheel, a toggle rod is provided on the other side of the rotating wheel, an opening is provided at the side of the adjusting seat, and the toggle rod can swing through the opening and extend out of the adjusting seat.

2. The flip adjustment structure of the seat armrest according to claim 1, characterized in that: An elastic protrusion is provided on the side of the rotating wheel, and a positioning wall is provided in the adjusting seat. The positioning wall is provided with two limiting grooves arranged around the axis of the rotating wheel. The elastic protrusion cooperates with one of the limiting grooves. When the rotating wheel rotates so that the elastic protrusion cooperates with the other limiting groove, the limiting block is separated from the locking block.

3. The flip adjustment structure of the seat armrest according to claim 1, characterized in that: A first spring is arranged between the top of the connecting seat and the bottom of the cover plate.

4. The flip adjustment structure of the seat armrest according to claim 1, characterized in that: A connecting platform is provided at the top of the armrest, the connecting seat is provided on the connecting platform and is rotatably connected to the connecting platform, an elastic component is provided at the top of the connecting platform, and a plurality of positioning grooves arranged around the axis of the connecting platform are provided at the bottom of the connecting seat, and the elastic component cooperates with one of the positioning grooves.

5. The flip adjustment structure of the seat armrest according to claim 4, characterized in that: A mounting groove is provided on the top of the connecting platform, and the elastic component includes a second spring and a clamping block. The second spring is provided in the mounting groove, the top end of the second spring is connected to the clamping block, and the top end of the clamping block cooperates with one of the positioning grooves.

6. The flip adjustment structure of the seat armrest according to claim 4, characterized in that: The bottom of the connecting seat is provided with a connecting groove which cooperates with the connecting platform.

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