CN218279108U

CN218279108U - Limiting structure for chair

Info

Publication number: CN218279108U
Application number: CN202222711387.4U
Authority: CN
Inventors: 胡健
Original assignee: Zhongshan Yuanjian Hardware Products Co ltd
Current assignee: Zhongshan Yuanjian Furniture Industry Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-01-13
Anticipated expiration: 2032-10-14

Abstract

The utility model relates to a chair technical field just discloses a limit structure for chair, including the back of the chair, the back of the chair both sides articulate respectively has two back of the chair supporting legs, the handrail supporting leg articulates there is handrail extension leg, two be provided with the cushion in the middle of the back of the chair supporting leg and rather than articulated, and two handrail supporting legs articulate respectively in the both sides of cushion, the one end of handrail supporting leg articulates respectively has the hand (hold) of holding up, the one end of back of the chair supporting leg articulates there is back of the chair extension leg, through set up the relation of being connected of location spout and buckle slider in back of the chair supporting leg and the articulated department of handrail supporting leg for the chair can height-adjusting, and carries out spacing difficult not hard up through being connected of spout screens hole and X font fixture block, through back of the chair supporting leg and handrail supporting leg articulated back of the chair extension leg and handrail extension leg, can further fold and save space.

Description

Limiting structure for chair

Technical Field

The utility model relates to a chair technical field specifically is a limit structure for chair.

Background

Among seats, the stool is the earliest and is the front of the stool, and the stool is developed into a chair by adding a backrest. The stool is called as a stool for civil use. The horse stool and the sedan stool are also called as horse stools and sedan stools for being used when stepping on horses and sedan cars at first. In the folk name, there is also a 'martial stool', because people who are familiar with martial arts sit like a clock and do not need to lean on what, so they are named. The stool has simple material and wide application, so the stool has a larger quantity than chairs. The shape of the stool is rich, the stool is rectangular in the early appearance, the stool is continued to the Ming dynasty, the Qing dynasty is changed into a square shape, the stool is circular, sector-shaped, quincunx and hexagonal, the chair for teaching is the stool for a classroom as the name implies, the existing folding chair is easy to drive the chair body to move when rising again, potential safety hazards exist, and the size of the folded storage can be optimized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a limit structure for chair solves the problem that the above-mentioned background mentioned.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a limit structure for chair, includes the back of the chair, the back of the chair both sides articulate respectively has two back of the chair supporting legs, handrail supporting leg articulates there is handrail extension leg, two be provided with the cushion in the middle of the back of the chair supporting leg and rather than articulated, and two handrail supporting legs articulate the both sides at the cushion respectively, handrail supporting leg's one end articulates respectively has holds up the hand, back of the chair supporting leg's one end articulates there is back of the chair extension leg, the location spout has been seted up to one side of back of the chair supporting leg, a plurality of spout screens holes have been seted up to the bottom of location spout inner wall, and location spout inner wall sliding connection has the buckle slider, buckle slider and handrail supporting leg fixed connection, buckle slider fixedly connected with X font fixture block, the top fixed mounting of X font fixture block has the spring, fixed spout has been seted up respectively to back of the chair supporting leg and one side of handrail supporting leg, fixed spout sliding connection has fixed slider, back of the chair supporting leg is fixed mounting screens rectangle block respectively with the opposite side of handrail.

The inner wall of the positioning sliding groove is in contact with the outer wall of the buckle sliding block, so that the sliding block is more stable and is not easy to deviate during moving.

The X-shaped fixture block is divided into two blocks which are hinged in a crossed mode, and a spring is fixedly installed at one clamping end, so that the X-shaped fixture block is moved to the sliding groove clamping hole and pushed to be unfolded to be clamped.

The inner wall of the fixed sliding groove is in contact with the outer wall of the fixed sliding block, so that the fixed sliding groove is more stable and is not easy to deviate during moving.

The chair back extension legs and the armrest extension legs hinged on the chair back support legs and the armrest support legs are hinged in a left-right swinging mode, and the position of a seat cushion can be lowered.

When the X-shaped clamping block is stretched, the outer wall of the X-shaped clamping block is in contact with the inner wall of the sliding groove clamping hole, so that the connection is stable and is not easy to deviate.

The utility model provides a limiting structure for a chair. This limit structure for chair possesses following beneficial effect:

(1) According to the limiting structure for the chair, the connecting relation between the positioning sliding groove and the buckle sliding block is arranged at the hinged position of the chair back supporting leg and the armrest supporting leg, so that the height of the chair can be adjusted, and the limiting is not easy to loosen through the connection between the sliding groove clamping hole and the X-shaped clamping block, so that the limiting purpose is achieved;

(2) The chair back extension leg and the armrest extension leg are hinged through the chair back support leg and the armrest support leg, and can be further folded to save space.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is an enlarged cross-sectional view of the present invention A;

fig. 4 is a cross-sectional enlarged view of the present invention B.

In the figure: 1. a chair back; 2. chair back support legs; 3. armrest support legs; 4. a cushion; 5. a handle bar; 201. positioning the chute; 202. a slide groove clamping hole; 203. a buckle slider; 204. an X-shaped fixture block; 205. a spring; 206. the chair back extends the legs; 301. fixing the chute; 302. fixing the sliding block; 303. a clamping rectangular block; 304. the armrests extend the legs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1-4, the utility model provides a technical solution: a limiting structure for a chair comprises a chair back 1, wherein two sides of the chair back 1 are respectively articulated with two chair back supporting legs 2, armrest supporting legs 3 are articulated with armrest extension legs 304, a cushion 4 is arranged in the middle of the two chair back supporting legs 2 and is articulated with the chair back supporting legs, the two armrest supporting legs 3 are respectively articulated with two sides of the cushion 4, one ends of the armrest supporting legs 3 are respectively articulated with an armrest handle 5, one ends of the chair back supporting legs 2 are articulated with chair back extension legs 206, the chair back extending legs 206 and the armrest extension legs 304 which are articulated on the chair back supporting legs 2 and the armrest supporting legs 3 are in an articulated mode of left-right swinging, the position of the cushion 4 can be reduced, one side of the chair back supporting legs 2 is provided with a positioning chute 201, the bottom of the inner wall of the positioning chute 201 is provided with a plurality of chute clamping holes 202, and the inner wall of the positioning chute 201 is slidably connected with a buckle sliding block 203, the inner wall of the positioning chute 201 contacts with the outer wall of the buckle slider 203, so that the movement is more stable and the deviation is less prone to happen, the buckle slider 203 is fixedly connected with the armrest supporting leg 3, the buckle slider 203 is fixedly connected with an X-shaped fixture block 204, the top of the X-shaped fixture block 204 is fixedly provided with a spring 205, the X-shaped fixture block 204 is divided into two blocks which are hinged in a crossed manner, one end of a clamping position is fixedly provided with the spring 205, so that the buckle slider moves to the chute clamping hole 202, the X-shaped fixture block 204 is pushed to unfold for clamping, when the X-shaped fixture block 204 is unfolded, the outer wall contacts with the inner wall of the chute clamping hole 202, so that the connection is stable and the deviation is less prone to happen, one side of the chair back supporting leg 2 and the armrest supporting leg 3 is respectively provided with a fixing chute 301, the fixing chute 301 is slidably connected with a fixing slider 302, the inner wall of the fixing chute 301 contacts with the outer wall of the fixing slider 302, so that the movement is more stable and the deviation is less prone to happen, the other sides of the chair back supporting legs 2 and the armrest supporting legs 3 are respectively and fixedly provided with a clamping rectangular block 303.

This limit structure for chair is when using, promote back of the chair 1 and cushion 4, the chair can expand automatically, including location spout 201 adjustment cushion 4's height through buckle slider 203, push into spout screens hole 202 through X font fixture block 204, fix spacingly, X font fixture block 204 shifts out spout screens hole 202 and draws in the chair when needs are accomodate, fixed slider 302 in the fixed spout 301 of the junction with back of the chair extension leg 206 and handrail extension leg 304 is released, fold and accomodate, can fix back of the chair extension leg 206 and handrail extension leg 304 with screens rectangular block 303 when pushing into fixed slider 302.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a limit structure for chair, includes back of the chair (1), its characterized in that: two chair back supporting legs (2) are respectively hinged on two sides of the chair back (1), two handrail supporting legs (3) are respectively hinged on the two chair back supporting legs (2), a cushion (4) is arranged between the two chair back supporting legs (2) and is hinged with the seat cushion, and two handrail supporting legs (3) are respectively hinged at two sides of the cushion (4), one end of the handrail supporting leg (3) is respectively hinged with a handrail (5), one end of each chair back supporting leg (2) is hinged with a chair back extending leg (206), one side of the chair back supporting leg (2) is provided with a positioning chute (201), a plurality of slide groove clamping holes (202) are arranged at the bottom of the inner wall of the positioning slide groove (201), a buckle slide block (203) is connected with the inner wall of the positioning slide groove (201) in a sliding way, the buckle sliding block (203) is fixedly connected with the handrail supporting leg (3), the buckle sliding block (203) is fixedly connected with an X-shaped clamping block (204), the top of the X-shaped fixture block (204) is fixedly provided with a spring (205), one side of each chair back supporting leg (2) and one side of each armrest supporting leg (3) are respectively provided with a fixed sliding chute (301), the fixed sliding chute (301) is connected with a fixed sliding block (302) in a sliding way, and clamping rectangular blocks (303) are fixedly arranged on the other sides of the chair back supporting legs (2) and the armrest supporting legs (3) respectively.

2. The limit structure for a chair according to claim 1, wherein: the inner wall of the positioning sliding groove (201) is in contact with the outer wall of the buckle sliding block (203).

3. The limit structure for a chair according to claim 1, wherein: the X-shaped fixture block (204) is divided into two blocks which are hinged in a crossed manner, and a spring (205) is fixedly arranged at one end of the fixture block.

4. The limit structure for a chair according to claim 1, wherein: the inner wall of the fixed sliding chute (301) is contacted with the outer wall of the fixed sliding block (302).

5. The limit structure for a chair according to claim 1, wherein: the chair back extension legs (206) and the armrest extension legs (304) which are hinged on the chair back support legs (2) and the armrest support legs (3) are hinged in a left-right swinging mode.

6. The limit structure for a chair according to claim 1, wherein: when the X-shaped fixture block (204) is stretched, the outer wall of the X-shaped fixture block is in contact with the inner wall of the chute clamping hole (202).