Folding handrail structure

Abstract

The utility model discloses a folding type armrest structure which comprises a chair body and two armrests arranged on the chair body, the armrests and the chair body are of a folding type turnover structure, anti-pinch locking pieces which are elastically connected are arranged at the front ends of the lower portions of the armrests, and the armrests are turned over and folded backwards by pressing the front anti-pinch locking pieces. The rotating base is connected into the armrest base through a shaft, the armrest cover is buckled to the top end of the armrest base, the anti-pinch locking piece is arranged at the front end of the bottom of the armrest base, a first limiting opening is formed in the side, right opposite to the anti-pinch locking piece, of the upper end of the rotating base, and the first limiting opening is meshed with the anti-pinch locking piece. The armrest is compact in structure and convenient to use, the armrest seat can be manually overturned only by arranging a palm on the front upper portion of the armrest cover and pulling the anti-pinch locking piece below the armrest seat upwards and backwards with fingers, the armrest seat is clockwise overturned and folded backwards with the connecting shaft of the armrest seat and the rotating base as the circle center, the situation that the hand is clamped when the armrest is overturned is effectively avoided, and safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of chairs, in particular to a foldable armrest structure. Background Art

[0002] A chair is a piece of furniture for daily life, a kind of sitting furniture with a backrest and armrests. Modern chairs pursue aesthetics and fashion. Some chairs are no longer just seating, but are equipped with more technology to make people more convenient. Chinese Patent CN218551830U discloses a stackable and storable armchair, comprising: a seat and a backrest connected to the seat; a support frame rotatably connected to the seat; and a seat flip control device, which includes a rotating mechanism connected between the support frame and the seat, and at least one stop mechanism disposed within the seat and located to the side of the rotating mechanism. The stackable and storable armchair disclosed in this utility model can be stacked front to back and / or up and down by flipping and tilting the seat forward and / or folding the armrests. After stacking, the armchair is compact, has low packaging costs, is convenient for storage and transportation, and is easy to store to save space.

[0003] The above-mentioned prior art has the following drawbacks: Although the armrests in the prior art can be flipped and folded backward and downward to facilitate stacking of chairs, the armrest support block at the armrest rotational connection must be manually pressed when flipping and folding the armrest backward and downward. If this method is not used properly, for example, if one hand presses the armrest support block while the other hand presses the armrest surface, the operator's fingers may be pinched due to lack of synchronization. Therefore, a foldable armrest structure is provided to solve the above problem. Utility Model Content

[0004] In order to solve the problems in the above background technology, the technical solution adopted by the utility model to solve the technical problems is: a folding armrest structure, including a chair body and two armrests arranged on the chair body, the armrests and the chair body are in a foldable flip structure, and an elastically connected anti-pinch locking part is provided at the front end below the armrest. Pressing the front anti-pinch locking part flips the armrest backward and folds it, completing the backward folding of the armrest.

[0005] As a preferred technical solution of the present utility model, the armrest includes a rotating base, an anti-pinch locking piece, and an armrest seat. The rotating base is connected to the inside of the armrest seat through an axis. The anti-pinch locking piece is arranged at the front end of the bottom of the armrest seat and is a rotating elastic button structure. A first limiting opening is provided on the upper end of the rotating base facing the anti-pinch locking piece, and the first limiting opening is engaged with the anti-pinch locking piece. A second limiting opening is provided on the side of the rotating base opposite to the first limiting opening.

[0006] As a preferred technical solution of the present invention, the armrest further includes an armrest cover, and the top end of the armrest seat is buckled with the armrest cover.

[0007] As a preferred technical solution of the present invention, the rotating base is engaged with the bottom of the armrest seat through a second limiting opening, and a connecting seat is fixedly provided at the bottom end of the rotating base.

[0008] As a preferred technical solution of the present invention, the connecting seat is inserted into the top end of the rear leg of the chair, and the connecting seat is pinned or threaded to the rear leg of the chair.

[0009] As an optimal technical solution of the present invention, the armrest seat is provided with a spring seat inside one end of the anti-pinch locking piece, the armrest seat is provided with a limiting groove on one side of the spring seat, and the armrest seat is provided with an axis groove on one side of the limiting groove.

[0010] As a preferred technical solution of the present invention, a spring body is provided between one end of the anti-pinch locking piece and the spring seat, and a shaft rod is provided at the upper end of the anti-pinch locking piece on one side of the shaft groove.

[0011] As a preferred technical solution of the present invention, the shaft and the spring body are respectively located at both ends of the anti-pinch locking member, the anti-pinch locking member rotates around the shaft, and the shaft is rotatably connected to the inside of the shaft groove.

[0012] As a preferred technical solution of the present invention, the chair body includes a chair frame, a seat is provided on one side of the upper end of the chair frame, and a chair back is provided at the tail end of the seat at the upper end of the chair frame.

[0013] The utility model has the following advantages: the utility armrest has a compact structure and is easy to use. The armrest seat can be manually flipped over by simply placing the palm of the hand on the upper front of the armrest cover and pressing the anti-pinch locking piece under the armrest seat with the fingers pointing upwards, so that the armrest seat can be flipped and folded backward clockwise with the connection axis with the rotating base as the center of the circle, effectively avoiding pinching the hand when flipping the armrest, and having high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a chair in a preferred embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the armrest structure of a preferred embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the partially disassembled structure of the armrest in the preferred embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the armrest cover removal structure of the armrest in the preferred embodiment of the utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the armrest seat in a preferred embodiment of the utility model;

[0019] Figure 6 It is a schematic diagram of the internal structure of the armrest in a preferred embodiment of the present utility model.

[0020] Explanation of the accompanying drawings: 1. Front legs of chair; 2. Back legs of chair; 3. Connecting seat; 4. Rotating base; 5. First limiting opening; 6. Second limiting opening; 7. Armrest seat; 8. Armrest cover; 9. Anti-pinch locking piece; 10. Spring body; 11. Spring seat; 12. Limiting groove; 13. Axis groove; 14. Limiting rod; 15. Axis rod; 16. Threaded hole; 17. Seat; 18. Chair backrest. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," "outside," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Please refer to Figures 1-6The utility model provides a foldable armrest structure, including a chair body and two armrests arranged on the chair body, the armrest and the chair body are in a foldable flip structure, and the front end of the lower side of the armrest is provided with an elastically connected anti-pinch locking piece 9. When the front anti-pinch locking piece 9 is pressed, the armrest flips and folds backward to complete the backward folding of the armrest. The chair frame includes a front leg 1 and a rear leg 2 of the chair. The front leg 1 and the rear leg 2 of the chair are connected in a herringbone shape. The armrest includes a rotating base 4, an anti-pinch locking piece 9, an armrest seat 7, and an armrest cover 8. The rotating base 4 is connected to the inside of the armrest seat 7 through an axis. The top end of the armrest seat 7 is buckled with the armrest cover 8. The anti-pinch locking piece 9 is arranged at the front end of the bottom of the armrest seat 7 and is a rotating elastic button structure. A first limiting opening 5 is provided on the upper end of the rotating base 4 facing the anti-pinch locking piece 9. The first limiting opening 5 is engaged with the anti-pinch locking piece 9, and a second limiting opening 6 is provided on the side of the rotating base 4 opposite to the first limiting opening 5.

[0025] Combine Figure 3 and Figure 6 As shown, the rotating base 4 is engaged with the bottom of the armrest seat 7 through the second limit opening 6, so that the maximum rotation angle of the armrest seat 7 can be limited when the armrest seat 7 is unfolded for use, thereby ensuring that the armrest seat 7 will not rotate or shake after being unfolded. A connecting seat 3 is fixedly provided at the bottom end of the rotating base 4, and the connecting seat 3 is inserted into the top end of the rear leg 2 of the chair. The connecting seat 3 is pin-connected to the rear leg 2 of the chair. Furthermore, a threaded hole 16 is provided at one end of the connecting seat 3 located inside the rear leg 2 of the chair, and a screw is threadedly connected inside the threaded hole 16, so as to facilitate assembly or disassembly between the armrest and the rear leg 2 of the chair. A spring seat 11 is provided inside one end of the anti-pinch locking member 9 of the armrest seat 7.

[0026] Combine Figure 4 and Figure 5 As shown, the armrest seat 7 is provided with a limiting groove 12 on one side of the spring seat 11, and the armrest seat 7 is provided with an axis groove 13 on one side of the limiting groove 12. A spring body 10 is provided between one end of the anti-pinch locking member 9 and the spring seat 11, and a limiting rod 14 is provided on the upper end of the anti-pinch locking member 9 on the side of the limiting groove 12. A axis rod 15 is provided on the upper end of the anti-pinch locking member 9 on the side of the axis groove 13. The limiting groove 12 cooperates with the limiting rod 14 to limit the maximum rotation angle of the anti-pinch locking member 9.

[0027] Among them, the shaft 15 and the spring body 10 are respectively located at both ends of the anti-pinch locking member 9. The anti-pinch locking member 9 rotates with the shaft 15 as the center of rotation. The shaft 15 is rotatably connected to the inside of the shaft groove 13. A seat 17 is provided on one side of the upper end of the chair frame. A chair backrest 18 is provided at the tail end of the seat 17 at the upper end of the chair frame. Rollers are provided at the bottom ends of the front legs 1 and the rear legs 2 of the chair.

[0028] When the hand is about to be folded, the user just needs to put the hand on the folding plate 7, and then the user can manually turn the folding plate 7 over, so that the hand can be folded back and forth in a clockwise direction, so that the hand can be effectively prevented from being caught by the user when the hand is turned over.

[0029] 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 modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

[0030] Other parts of the present invention that are not described in detail belong to the prior art and will not be described in detail here.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A foldable armrest structure, comprising a chair body and two armrests arranged on the chair body, characterized in that: The armrest and the chair body are in a foldable flip structure, and an elastically connected anti-pinch locking piece (9) is provided at the front end below the armrest. When the front anti-pinch locking piece (9) is pressed, the armrest flips and folds backward, completing the backward folding of the armrest. The armrest comprises a rotating base (4), an anti-pinch locking member (9), and an armrest seat (7); the rotating base (4) is connected to the inside of the armrest seat (7) via a shaft; the anti-pinch locking member (9) is arranged at the front end of the bottom of the armrest seat (7) and is a rotating elastic button structure; a first limiting opening (5) is provided on the upper end of the rotating base (4) facing the anti-pinch locking member (9); the first limiting opening (5) is engaged with the anti-pinch locking member (9); and a second limiting opening (6) is provided on the side of the rotating base (4) opposite to the first limiting opening (5).

2. A foldable armrest structure according to claim 1, characterized in that: The armrest also includes an armrest cover (8), and the armrest cover (8) is buckled to the top of the armrest seat (7).

3. The foldable armrest structure according to claim 1, characterized in that: The rotating base (4) engages with the bottom of the armrest seat (7) through the second limiting opening (6), and a connecting seat (3) is fixedly provided at the bottom end of the rotating base (4).

4. A foldable armrest structure according to claim 3, characterized in that: The connecting seat (3) is inserted into the top end of the chair rear leg (2), and the connecting seat (3) is connected to the chair rear leg (2) by a pin or thread.

5. The foldable armrest structure according to claim 1, characterized in that: The armrest seat (7) is provided with a spring seat (11) inside one end of the anti-pinch locking member (9), the armrest seat (7) is provided with a limiting groove (12) on one side of the spring seat (11), and the armrest seat (7) is provided with an axis groove (13) on one side of the limiting groove (12).

6. The foldable armrest structure according to claim 5, characterized in that: A spring body (10) is provided between one end of the anti-pinch locking member (9) and the spring seat (11), and a shaft (15) is provided at the upper end of the anti-pinch locking member (9) on one side of the shaft groove (13).

7. A foldable armrest structure according to claim 6, characterized in that: The shaft (15) and the spring body (10) are respectively located at two ends of the anti-pinch locking member (9). The anti-pinch locking member (9) rotates around the shaft (15), and the shaft (15) is rotatably connected to the inside of the shaft groove (13).

8. The foldable armrest structure according to claim 1, characterized in that: The chair body comprises a chair frame, and the chair frame comprises chair front legs (1) and chair rear legs (2). A chair seat (17) is provided on one side of the upper end of the chair frame, and a chair backrest (18) is provided at the tail end of the chair seat (17) at the upper end of the chair frame.

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