Supine adjusting mechanism and office chair

Abstract

The utility model discloses a supine adjusting mechanism and an office chair, the supine adjusting mechanism comprises: a cushion part, which comprises a cushion main body and at least one armrest fixedly connected to the cushion main body; the backrest part comprises a backrest main body, and the backrest main body is hinged to the cushion part; the adjusting assembly comprises a sliding rod and a locking piece, the left end of the sliding rod is hinged to the backrest body, the second hinge shaft is located behind the armrest, and the sliding rod is slidably arranged on the armrest in the front-back direction; the locking piece is movably arranged on the handrail and detachably connected with the sliding rod. The office chair comprises chair legs and the supine adjusting mechanism. When a user needs to adjust the supine angle, the locking piece is controlled to be separated from the sliding rod, then the backrest body is controlled to be turned to the needed position, then the locking piece is controlled to be connected with the sliding rod, and adjustment is completed. In the adjusting process, the armrests cannot move along with movement of the backrest body, a user can hold the armrests to support the body, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of furniture, and in particular to a reclining adjustment mechanism and an office chair. Background Technology

[0002] To facilitate reclining and resting, some office chairs are designed with a mechanism that allows the backrest to recline. In such chairs, the backrest adjustment mechanism is located on the armrests. To adjust the reclining angle, the armrests must first be lifted. During adjustment, the armrests move along with the backrest, meaning they are movable and the user cannot support their body by holding onto them, which is somewhat inconvenient. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a reclining adjustment mechanism and an office chair.

[0004] The supine adjustment mechanism according to a first aspect embodiment of the present invention includes:

[0005] A seat cushion component includes a seat cushion body and at least one armrest fixedly connected to the seat cushion body, the armrest being located above the front edge of the seat cushion body;

[0006] The backrest component includes a backrest body disposed above the left edge of the seat cushion body, the backrest body being hinged to the seat cushion component via a first hinge extending forward and backward.

[0007] The adjustment assembly includes a slide rod and a locking member. The left end of the slide rod is hinged to the backrest body via a second hinge shaft extending forward and backward. The slide rod or the backrest body has a vertically extending waist-shaped groove. The second hinge shaft is slidably disposed within the waist-shaped groove and is located behind the armrest. The slide rod is slidably disposed on the armrest in the forward and backward direction. The locking member is movably disposed on the armrest and is detachably connected to the slide rod.

[0008] The supine adjustment mechanism according to the first aspect of this utility model has at least the following technical effects: when the user needs to adjust the supine angle, the locking member is operated to separate the locking member from the slide rod, and then the backrest body is controlled to flip to the desired position. Then the locking member is operated to connect the locking member with the slide rod, thus completing the adjustment; the armrest is fixedly connected to the seat cushion body, and the armrest will not move with the backrest body during the adjustment process. The armrest is fixed during the adjustment process, and the user can hold the armrest to support the body, which is convenient for operation.

[0009] According to some embodiments of the present invention, the handrail is provided with a sliding groove, the left end of the sliding groove is open, and the sliding rod is inserted into the sliding groove from left to right.

[0010] According to some embodiments of the present invention, a first elastic element is connected between the slide bar and the handrail, and the first elastic element is used to drive the slide bar to move to the right.

[0011] According to some embodiments of the present invention, the right end of the slide groove is provided with an extension section extending to the right, and the first elastic member is disposed within the extension section.

[0012] According to some embodiments of the present invention, the upper side of the slide and the extension section is provided with an opening, and the handrail is detachably provided with a cover plate, which covers the opening.

[0013] According to some embodiments of the present invention, the peripheral wall of the slide groove is provided with a first opening, the locking member is provided in the first opening, the locking member is a lever, the locking member is hinged to the handrail through a third hinge shaft, the two ends of the locking member are respectively referred to as the first end and the second end, the first end and the second end are respectively provided on the inner side and the outer side of the handrail, and a second elastic member is connected between the locking member and the handrail, the second elastic member is used to drive the first end to abut against the slide bar.

[0014] According to some embodiments of the present invention, the first opening is located at the bottom of the groove.

[0015] According to some embodiments of the present invention, the slide rod is arc-shaped, and the slide groove extends downward in an arc from right to left.

[0016] According to some embodiments of the present invention, a support column is connected between the left end of the armrest and the seat cushion component, and the first hinge pin is disposed on the support column and located above the seat cushion.

[0017] An office chair according to a second aspect of the present invention includes chair legs and the aforementioned reclining adjustment mechanism, wherein the chair legs are connected to the bottom of the seat cushion component.

[0018] The office chair according to the second aspect of the present invention has at least the following technical effects: the armrests do not move with the backrest body during the process of adjusting the reclining angle of the backrest body, the armrests are fixed during the adjustment process, and the user can hold the armrests to support the body, which is convenient for operation.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a front sectional view of the supine adjustment mechanism according to an embodiment of the present utility model;

[0022] Figure 2 yes Figure 1 An enlarged view of region A in the diagram;

[0023] Figure 3 This is a schematic diagram of the supine adjustment mechanism in an embodiment of the present invention in a supine state;

[0024] In the attached image:

[0025] 100-Seat cushion body; 110-Support column; 120-First hinge pin; 200-Armrest; 201-First opening; 210-Slide groove; 220-Cover plate; 300-Slide rod; 301-Waist-shaped groove; 302-Card slot; 310-Locking element; 311-First end; 312-Second end; 320-First elastic element; 330-Second hinge pin; 340-Third hinge pin; 350-Second elastic element; 400-Backrest body. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number, while "above," "below," "within," etc., are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] The following is for reference. Figures 1 to 3 This invention describes a reclining adjustment mechanism and an office chair according to embodiments of the present invention.

[0030] The supine adjustment mechanism of the first aspect of this utility model, referring to... Figure 1 It includes seat cushion components, backrest components, and adjustment components.

[0031] The seat cushion component includes a seat cushion body 100 and armrests 200. The seat cushion body 100 is a horizontally arranged plate, and the armrests 200 are strips extending forward and backward. The armrests 200 are located above the seat cushion body 100 and are fixedly connected to the seat cushion body 100. There are two armrests 200, referred to as the first armrest 200 and the second armrest 200, respectively. The first armrest 200 is located above the front edge of the seat cushion body 100, and the second armrest 200 is located above the rear edge of the seat cushion body 100. Of course, in some other embodiments of this utility model, the number of armrests 200 may be only one, that is, only the first armrest 200 may be provided.

[0032] The backrest component includes a backrest body 400, which is a vertically arranged plate. The backrest body 400 is located above the left side edge of the seat cushion body 100. The bottom of the backrest body 400 is located between the first armrest 200 and the second armrest 200. The backrest body 400 is hinged to the seat cushion component through a first hinge pin 120 extending forward and backward. The first hinge pin 120 can be located on the seat cushion body 100 or on the support column 110 connecting the seat cushion body 100 and the armrest 200. When there are two armrests 200, there are also two first hinge pins 120. The two first hinge pins 120 are coaxial. One first hinge pin 120 is connected between the first armrest 200 and the front side of the backrest body 400, and the other first hinge pin 120 is connected between the second armrest 200 and the rear side of the backrest body 400.

[0033] Reference Figure 2The adjustment assembly includes a slide rod 300 and a locking member 310. The left end of the slide rod 300 is hinged to the backrest body 400 via a second hinge pin 330 extending forward and backward. The slide rod 300 or the backrest body 400 is provided with a vertically extending waist-shaped groove 301, and the second hinge pin 330 is slidably disposed within the waist-shaped groove 301. When there are two armrests 200, there are also two slide rods 300 and two hinge pins 330. One slide rod 300 connects between the first armrest 200 and the backrest body 400, and the other slide rod 300 connects between the second armrest 200 and the backrest body 400, so as to make the relative movement between the backrest body 400 and the seat cushion component more stable. The number of locking members 310 can be one or two. The locking member 310 is disposed on the first armrest 200. Taking 0 as an example, the second hinge pin 330 is located behind the first armrest 200, and the slide rod 300 is slidably disposed on the first armrest 200 in the front-back direction; the locking member 310 is detachably connected to the slide rod 300. When the locking member 310 is separated from the slide rod 300, the slide rod 300 can slide along the first armrest 200 to adjust the reclining angle of the backrest body 400. When the locking member 310 is connected to the slide rod 300, the slide rod 300 is connected between the locking member 310 and the first armrest 200, so that the slide rod 300 and the first armrest 200 are relatively fixed, thereby fixing the current reclining angle of the backrest body 400; the locking member 310 is movably disposed on the first armrest 200, so that when the locking member 310 is separated from the slide rod 300, the locking member 310 is still connected to the first armrest 200, avoiding the problem of the locking member 310 falling off and being lost.

[0034] When the user needs to adjust the reclining angle, the locking device 310 is operated to separate the locking device 310 from the slide rod 300. Then, the backrest body 400 is rotated to the desired position, and the locking device 310 is operated to connect with the slide rod 300, thus completing the adjustment. The armrest 200 is fixedly connected to the seat cushion body 100. During the adjustment process, the armrest 200 will not move with the backrest body 400. The armrest 200 is fixed during the adjustment process, and the user can hold the armrest 200 to support the body, which is convenient for operation.

[0035] In some embodiments of this utility model, a sliding groove 210 is provided inside the armrest 200, with the left end of the sliding groove 210 open. The sliding rod 300 is inserted into the sliding groove 210 from left to right to achieve a sliding connection between the sliding rod 300 and the armrest 200. In this way, the sliding rod 300 is disposed inside the armrest 200 and will not protrude from the top, bottom, front, or rear of the armrest 200, preventing the sliding rod 300 from sliding on the surface of the armrest 200 and colliding with the user's hand or other objects during the adjustment of the reclining angle of the backrest body 400.

[0036] In some embodiments of this utility model, a first elastic element 320 is connected between the slide rod 300 and the armrest 200. The first elastic element 320 is used to drive the slide rod 300 to move to the right. After the locking element 310 is disengaged from the slide rod 300 by manipulating it, the user, lying supine, applies a force to the left to the backrest body 400, causing the backrest body 400 to flip towards a more horizontal position. Then, by manipulating the locking element 310 to connect it to the slide rod 300, the current position of the backrest body 400 is fixed. Figure 3 As shown, the reclining adjustment mechanism is in a reclining position at this time. After the locking member 310 is disengaged from the slide rod 300 by manipulating the locking member 310, the user sits upright. The slide rod 300 moves to the right under the action of the first elastic member 320, thereby causing the backrest body 400 to move to the right. The backrest body 400 flips towards a more upright posture. Then, by manipulating the locking member 310 to connect with the slide rod 300, the current position of the backrest body 400 is fixed. Figure 1 As shown, the supine adjustment mechanism is in the sitting position at this time; there is no need to manually rotate the backrest body 400 to adjust the supine angle.

[0037] In some embodiments of this utility model, the right end of the slide groove 210 is provided with a rightward extension section, and the first elastic member 320 is disposed within the extension section. The first elastic member 320 may be a horizontally arranged tension spring. The left end of the first elastic member 320 is connected to the right end of the slide rod 300, and the right end of the first elastic member 320 is connected to the handrail 200. This structure is simple and compact, making full use of the space within the handrail 200.

[0038] In some embodiments of this utility model, the upper side of the slide groove 210 and the extension section is provided with an opening, and the handrail 200 is detachably provided with a cover plate 220, which covers the opening. The handrail 200 and the cover plate 220 can be detachably connected by snap-fit, bolt connection or other suitable means. A limiting block is also provided in the slide groove 210, which is detachably connected to the slide rod 300. The limiting block is used to limit the left extreme position of the slide rod 300 to prevent the slide rod 300 from falling to the left. By providing the opening and the cover plate 220, the first elastic element 320 and the slide rod 300 can be disassembled and assembled by removing the cover plate 220, which facilitates the disassembly and assembly of the first elastic element 320 and the slide rod 300.

[0039] In some embodiments of this utility model, the peripheral wall of the slide groove 210 is provided with a first opening 201, and a locking member 310 is disposed in the first opening 201. The locking member 310 is a lever. The first opening 201 can be disposed in the front wall, rear wall, top wall, or bottom wall of the slide groove 210, so that one end of the lever protrudes from the front side, rear side, upper side, or lower side of the handrail 200, so as to facilitate the user to operate the lever. The locking member 310 is hinged to the handrail 200 by a third hinge pin 340, which extends along the tangential direction of the circumference of the slide groove 210, that is, when the first opening 201 is disposed in the slide groove 210... The front or rear wall of the slide 210, the third hinge 340 extends vertically, and when the first opening 201 is provided on the top or bottom wall of the slide 210, the third hinge 340 extends in the front-back direction; the two ends of the locking member 310 are respectively referred to as the first end 311 and the second end 312, the third hinge 340 is provided between the first end 311 and the second end 312, the first end 311 and the second end 312 are respectively provided on the inner and outer sides of the handrail 200, and a second elastic member 350 is connected between the locking member 310 and the handrail 200, the second elastic member 350 is used to drive the first end 311 to abut against the slide bar 300. When the user presses the second end 312 of the locking member 310, the first end 311 of the locking member 310 can be separated from the slide bar 300, allowing the slide bar 300 to slide relative to the handrail 200. When the user releases the second end 312 of the locking member 310, the first end 311 of the locking member 310 abuts against the slide bar 300 under the action of the second elastic member 350, thus fixing the slide bar 300 relative to the handrail 200. The structure is simple and the operation is convenient. The surface of the slide bar 300 can be provided with multiple slots 302, which are arranged sequentially along the axial direction of the slide bar 300. When the user releases the second end 312 of the locking member 310, the first end 311 of the locking member 310 is placed in one of the slots 302 to prevent slippage between the slide bar 300 and the first end 311.

[0040] In some embodiments of this utility model, the first opening 201 is located at the bottom of the slide groove 210. The locking member 310 is a rod-shaped member that slopes downward from left to right. The first end 311 is the left end of the locking member 310, and the second end 312 is the right end of the locking member 310. The second elastic member 350 is a vertically arranged helical spring, located below the first end 311. In this way, the second end 312 of the locking member 310 protrudes downward from the armrest 200, preventing the user's hand from accidentally touching the second end 312 when placed on the upper side of the armrest 200.

[0041] In some embodiments of this utility model, the slide bar 300 is arc-shaped, and the slide groove 210 extends downward in an arc from right to left. In this way, the path of the second hinge shaft 330 moving with the slide bar 300 is an arc-shaped extension from right to left, which helps to lower the height position of the second hinge shaft 330, thereby bringing the second hinge shaft 330 closer to the first hinge shaft 120, and increasing the adjustment range of the supine angle without changing the length of the slide bar 300.

[0042] In some embodiments of this utility model, a support column 110 is connected between the left end of the armrest 200 and the seat cushion component, and a first hinge pin 120 is disposed on the support column 110, with the first hinge pin 120 located above the seat cushion. This facilitates raising the height of the first hinge pin 120, thereby bringing the second hinge pin 330 closer to the first hinge pin 120, and increasing the range of adjustment for the supine angle while keeping the length of the slide rod 300 unchanged.

[0043] The office chair of the second aspect of this utility model includes chair legs and the aforementioned reclining adjustment mechanism. The chair legs are connected to the bottom of the seat cushion component. By providing the reclining adjustment mechanism, when the user needs to adjust the reclining angle, they operate the locking member 310 to separate it from the slide rod 300, then control the backrest body 400 to rotate to the desired position, and then operate the locking member 310 to connect it to the slide rod 300, thus completing the adjustment. The armrest 200 is fixedly connected to the seat cushion body 100. During the adjustment process, the armrest 200 will not move with the backrest body 400; it remains fixed, allowing the user to hold the armrest 200 for body support and facilitating operation.

[0044] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A supine adjustment mechanism, characterized in that: include A seat cushion component includes a seat cushion body and at least one armrest fixedly connected to the seat cushion body, the armrest being located above the front edge of the seat cushion body; The backrest component includes a backrest body disposed above the left edge of the seat cushion body, the backrest body being hinged to the seat cushion component via a first hinge extending forward and backward. The adjustment assembly includes a slide rod and a locking element. The left end of the slide rod is hinged to the backrest body via a second hinge shaft extending forward and backward. The slide rod or the backrest body has a vertically extending waist-shaped groove, and the second hinge shaft is slidably disposed within the waist-shaped groove. The second hinge shaft is located behind the armrest, and the slide rod is slidably disposed on the armrest in the forward and backward direction. The locking element is movably disposed on the armrest, and the locking element is detachably connected to the slide rod.

2. The supine adjustment mechanism according to claim 1, characterized in that: The handrail is provided with a sliding groove, the left end of which is open, and the sliding rod is inserted into the sliding groove from left to right.

3. The supine adjustment mechanism according to claim 2, characterized in that: A first elastic element is connected between the slide bar and the handrail, and the first elastic element is used to drive the slide bar to move to the right.

4. The supine adjustment mechanism according to claim 3, characterized in that: The right end of the slide is provided with an extension section extending to the right, and the first elastic element is disposed within the extension section.

5. The supine adjustment mechanism according to claim 4, characterized in that: The upper side of the slide and the extension section is provided with an opening, and the handrail is detachably provided with a cover plate, which covers the opening.

6. The supine adjustment mechanism according to claim 2, characterized in that: The peripheral wall of the slide groove has a first opening, and the locking member is located in the first opening. The locking member is a lever and is hinged to the handrail via a third hinge shaft. The two ends of the locking member are referred to as the first end and the second end, respectively. The first end and the second end are located on the inner and outer sides of the handrail, respectively. A second elastic member is connected between the locking member and the handrail. The second elastic member is used to drive the first end to abut against the slide bar.

7. The supine adjustment mechanism according to claim 6, characterized in that: The first opening is located at the bottom of the groove.

8. The supine adjustment mechanism according to claim 2, characterized in that: The slide bar is arc-shaped, and the slide groove extends downward in an arc from right to left.

9. The supine adjustment mechanism according to claim 1, characterized in that: A support column is connected between the left end of the armrest and the seat cushion component. The first hinge pin is located on the support column and is situated above the seat cushion.

10. An office chair, characterized in that: Includes chair legs and a reclining adjustment mechanism as described in any one of claims 1 to 9, wherein the chair legs are connected to the bottom of the seat cushion component.

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