CN221813567U - A foldable armrest specially used for a swivel chair - Google Patents

Abstract

The utility model provides a foldable armrest special for a swivel chair, which comprises a swivel chair body, wherein the bottom of the swivel chair body is rotationally connected with a rotary supporting rod, the side end of the rotary supporting rod is rotationally connected with a middle connecting rod, and the top of the middle connecting rod is rotationally connected with an armrest body. According to the folding handrail, the folding handrail is unstable and is not easy to store through the cooperation of the rotating support rods, the middle connecting rods, the clamping fixing plates and the supporting connecting rods, the middle connecting rods are fixed through the cooperation of the clamping fixing plates and the handrail body, the middle connecting rods cannot rotate, the handrail body is stably unfolded, then the supporting connecting rods are turned over to enter the grooves in the bottom of the handrail body, the supporting connecting rods and the handrail body are locked through the locking blocks, and the fixing of the handrail body is completed.

Description

A foldable armrest specially used for a swivel chair

Technical Field

The present invention relates to the technical field of a practical armrest body for a swivel chair, and in particular to a foldable armrest for a swivel chair.

Background Art

A swivel chair is a type of computer chair or office chair. The sitting part can rotate. It can provide a comfortable and healthy sitting experience according to the applicable occasion. For example, some swivel chairs are equipped with a liftable and tiltable backrest and fixed or foldable armrests. They are also equipped with adjustable seat cushion depth and height to accommodate different heights and body shapes. Some users will fold up the armrests of the swivel chair due to personal preference or the needs of the application, so they will choose a swivel chair with a foldable armrest.

Traditional foldable armrest bodies of swivel chairs are mostly simply a pair of upside-down flip armrest bodies hinged on both sides of the swivel chair, which are flipped up when not in use. After being flipped up, this armrest body is easily flipped back again due to shaking and touching, and because the chair body is simply hinged at a single point, it is very unstable and easily damaged. Therefore, a foldable armrest specifically for a swivel chair is proposed.

Utility Model Content

The utility model aims to solve the deficiencies of the prior art and to provide a foldable armrest specially used for a swivel chair, which can solve the problems that the foldable armrest body is unstable and difficult to store.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foldable armrest specially used for a swivel chair, comprising a swivel chair body, a swivel support rod rotatably connected to the bottom of the swivel chair body, a middle connecting rod rotatably connected to the side end of the swivel support rod, an armrest body rotatably connected to the top of the middle connecting rod, a positioning fixing plate rotatably connected to the lower end of the armrest body, a positioning block slidably connected to the inside of the positioning fixing plate, a locking groove is provided inside the armrest body, a first magnetic buckle is fixedly installed on the lower end of the armrest body, a support connecting rod is hinged on the side of the swivel chair body, a locking block is rotatably connected to the inside of the support connecting rod, and a second magnetic buckle is fixedly installed on the side of the armrest body.

Preferably, a pulley bracket is provided at the bottom of the swivel chair body, and a first magnetic buckle is fixedly connected to the bottom of the swivel chair body.

Preferably, a groove is provided at the bottom of the armrest body and the middle connecting rod is located inside the groove, and after the armrest body is folded and flipped downward, the positions of a pair of the first magnetic buckles correspond and attract each other.

Preferably, the positioning fixing plate is located between a pair of middle connecting rods and abuts against the middle connecting rod, and a second magnetic buckle is fixedly installed on the side of the positioning fixing plate. When the positioning fixing plate is flipped upward, the magnetic force of the second magnetic buckle can fix the positioning fixing plate to the outside of the armrest body.

Preferably, a push-pull block is provided on the side of the locking block, the push-pull block passes through the locking fixing plate and extends to the outside of the locking fixing plate, and an opening corresponding to the locking block is opened on the side of the armrest body.

Preferably, the locking block is movably connected inside the locking groove to fix the locking fixing plate to the bottom of the armrest body, so that the locking fixing plate and the armrest body fix the middle connecting rod.

Preferably, the supporting link is movably connected inside the armrest body, a bayonet corresponding to the locking block is provided inside the armrest body, and the locking block is vertically engaged with the armrest body.

The beneficial effects of the utility model are:

The utility model can solve the problem that the foldable armrest is unstable and difficult to store by rotating the support rod, the middle connecting rod, the locking plate and the support connecting rod. The armrest body is supported by the connecting rod, and the locking plate and the armrest body cooperate to fix the middle connecting rod, so that the middle connecting rod cannot rotate, thereby stably unfolding the armrest body. After that, the support connecting rod is flipped into the groove at the bottom of the armrest body, and the support connecting rod and the armrest body are locked by the locking block to complete the fixation of the armrest body. In summary, the utility model has the advantages of easy deployment and stable use.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

Figure 2 is a partial enlarged view of the armrest body of the utility model;

Figure 3 is an enlarged schematic diagram of the handrail body of the utility model;

FIG4 is a partial enlarged schematic diagram of point A in FIG3 ;

FIG5 is an exploded view of the handrail portion of the utility model;

FIG6 is a schematic diagram of the folding structure of the armrest body of the present invention.

In the figure: 1. swivel chair body; 2. rotating support rod; 3. middle connecting rod; 4. armrest body; 5. clamping plate; 6. clamping block; 7. locking groove; 8. first magnetic buckle; 9. supporting connecting rod; 10. locking block; 11. second magnetic buckle.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element 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 invention.

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, a feature defined as "first" or "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.

Embodiment 1

As shown in Figures 1 to 6, this embodiment provides a foldable armrest dedicated to a swivel chair, including a swivel chair body 1, a swivel support rod 2 is rotatably connected to the bottom of the swivel chair body 1, a middle connecting rod 3 is rotatably connected to the side end of the swivel support rod 2, an armrest body 4 is rotatably connected to the top of the middle connecting rod 3, a clamping fixing plate 5 is rotatably connected to the lower end of the armrest body 4, a clamping block 6 is slidably connected to the inside of the clamping fixing plate 5, a locking groove 7 is provided inside the armrest body 4, a first magnetic buckle 8 is fixedly installed on the lower end of the armrest body 4, a support connecting rod 9 is hinged on the side of the swivel chair body 1, a locking block 10 is rotatably connected to the inside of the support connecting rod 9, and a second magnetic buckle 11 is fixedly installed on the side of the armrest body 4. When unfolding the armrest body, first pull it to both sides. The armrest body 4 unfolds the middle connecting rod 3, and then the armrest body 4 is flipped upward until the middle connecting rod 3 is in a vertical state, and then the locking plate 5 is flipped downward and pulled open, so that it cooperates with the armrest body 4 to fix the middle connecting rod 3, so that the middle connecting rod 3 cannot rotate, and then the locking block 6 is pushed to slide into the locking groove 7, and the locking plate 5 is fixed in the groove at the bottom of the armrest body 4 to complete the unfolding of the armrest body 4, and then the supporting connecting rod 9 is flipped upward to enter the groove at the bottom of the armrest body 4. At the same time, the locking block 10 enters the interior of the armrest body 4, and then the locking block 10 is rotated to lock the supporting connecting rod 9 with the armrest body 4 to complete the fixation of the armrest body 4. When it needs to be stored, the above operations can be performed in reverse.

A pulley bracket is arranged at the bottom of the swivel chair body 1 so that the swivel chair body 1 can slide freely. A first magnetic buckle 8 is arranged at the bottom of the swivel chair body 1. A groove is arranged at the bottom of the armrest body 4 and the middle connecting rod 3 is located inside the groove. After the armrest body 4 is folded and turned down, the positions of a pair of first magnetic buckles 8 correspond and attract each other. The armrest body 4 is fixed by the first magnetic buckle 8 to avoid damage to the armrest body 4 due to centrifugal force when the chair is rotated. The fixed plate 5 arranged at the position is located between the pair of first magnetic buckles 8 and the armrest body 4 is fixed. The middle connecting rod 3 is between and abutted against the middle connecting rod 3, so that the locking plate 5 and the armrest body 4 can fix the unfolded middle connecting rod 3, so that the middle connecting rod 3 cannot rotate, and a second magnetic buckle 11 is fixedly installed on the side of the locking plate 5. When the locking plate 5 is flipped upward, the magnetic force of the second magnetic buckle 11 can fix the locking plate 5 to the outside of the armrest body 4, thereby preventing the locking plate 5 from flipping downward and unfolding due to gravity when the armrest body 4 is folded and stored at the bottom of the swivel chair body 1.

The push-pull block is arranged on the side of the positioning block 6, which can conveniently push the positioning block 6 into the locking groove 7. The push-pull block passes through the positioning fixing plate 5 and extends to the outside of the positioning fixing plate 5. An opening corresponding to the positioning block 6 is opened on the side of the armrest body 4 to facilitate the storage of the positioning fixing plate 5 and the positioning block 6. The positioning block 6 is movably connected to the inside of the locking groove 7 to fix the positioning fixing plate 5 to the bottom of the armrest body 4, so that the armrest body 4 enters between the middle connecting rod 3 and limits the middle connecting rod 3. The positioning fixing plate 5 cooperates with the armrest body 4 to fix the middle connecting rod 3 so that the middle connecting rod 3 cannot rotate. The support connecting rod 9 is movably connected to the inside of the armrest body 4. A bayonet corresponding to the locking block 10 is opened in the armrest body 4. The locking block 10 is connected to the armrest body 4 in a directional manner. The armrest body 4 is limited by the support connecting rod 9 so that the armrest body 4 cannot be flipped outward, thereby fixing the armrest body 4.

Working steps

When unfolding, first pull the armrest body 4 to both sides to unfold the middle connecting rod 3, then flip the armrest body 4 upward to make the middle connecting rod 3 in a vertical state, then flip the positioning fixing plate 5 downward and pull it to the middle connecting rod 3, and cooperate with the armrest body 4 to fix the middle connecting rod 3 so that the middle connecting rod 3 cannot rotate, then push the positioning block 6 to slide into the locking groove 7 to fix the positioning fixing plate 5 to complete the unfolding of the armrest body 4, then flip the supporting connecting rod 9 into the groove at the bottom of the armrest body 4, and at the same time, the locking block 10 enters the inside of the armrest body 4, and then rotate the locking block 10 to lock the supporting connecting rod 9 with the armrest body 4 to complete the fixation of the armrest body 4. When it needs to be stored, the above operations can be performed in reverse.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a dedicated foldable handrail of swivel chair, includes the swivel chair body, its characterized in that, swivel chair body bottom rotates and is connected with the rotation bracing piece, it is connected with the middle part connecting rod to rotate bracing piece side, middle part connecting rod top rotates and is connected with the handrail body, handrail body lower extreme rotates and is connected with the screens fixed plate, the inside sliding connection of screens fixed plate has the screens piece, the locking groove has been seted up to handrail body inside, handrail body lower extreme fixed mounting has first magnetic force to inhale and detain, swivel chair body side articulates there is the supporting link, the inside rotation of supporting link is connected with the locking piece, handrail body side fixed mounting has the second magnetic force to inhale and detain.

2. The foldable armrest special for swivel chairs according to claim 1, wherein a pulley bracket is provided at the bottom of the swivel chair body, and a first magnetic attraction buckle is fixedly connected to the bottom of the swivel chair body.

3. The foldable armrest special for swivel chairs according to claim 1, wherein a groove is provided at the bottom of the armrest body and a middle connecting rod is located inside the groove, and after the armrest body is folded down and turned over, the positions of the pair of first magnetic attraction buckles correspond to each other and attract each other.

4. The foldable armrest for swivel chairs according to claim 1, wherein the latch fixing plate is located between the pair of middle connecting rods and is abutted against the middle connecting rods, and the second magnetic attraction buckle is fixedly installed on the side surface of the latch fixing plate, and when the latch fixing plate is turned upwards, the latch fixing plate can be fixed on the outer side of the armrest body by the magnetic force of the second magnetic attraction buckle.

5. The foldable armrest special for swivel chairs according to claim 1, wherein a push-pull block is provided on a side surface of the clamping block, the push-pull block penetrates through the clamping fixing plate and extends to an outer side of the clamping fixing plate, and an opening corresponding to the clamping block is provided on a side surface of the armrest body.

6. The foldable armrest for swivel chairs according to claim 5, wherein the locking block is movably connected to the inside of the locking slot, so as to fix the locking fixing plate to the bottom of the armrest body, and fix the middle connecting rod with the armrest body.

7. The foldable armrest special for swivel chairs according to claim 1, wherein the support link is movably connected to the inside of the armrest body, and the inside of the armrest body is provided with a bayonet corresponding to the locking block, and the locking block is clamped with the armrest body.