CN219720200U - Improved structure for chair back tilting adjustment - Google Patents

Abstract

The utility model discloses an improved structure for adjusting the leaning and leaning of a chair back, and relates to the technical field of furniture. The utility model comprises a base, wherein a first connecting shaft and a second connecting shaft are arranged on the base, a telescopic spring is arranged between the first connecting shaft and the second connecting shaft, a rocker is arranged on the base, one end of the rocker is hinged with the second connecting shaft, a telescopic guide rod is arranged between the first connecting shaft and the second connecting shaft, and the telescopic guide rod can stretch or stretch along with the rotation of the rocker. According to the utility model, the sleeve is downwards broken to drive the sliding seat to move leftwards, so that the bolt is driven to move leftwards until the bolt is separated from the lock hole, and after the back angle adjustment is completed, the sleeve is upwards broken to enable the bolt to be reinserted into the lock hole, so that the angle adjusted by the back is fixed, the complexity inside the base and the limitation of the inner cavity space of the base are reduced, and the device achieves the purpose of fixing the rotation angle of the rocker by using a simplest mechanism.

Description

Improved structure for chair back tilting adjustment

Technical Field

The utility model belongs to the technical field of furniture, and particularly relates to an improved structure for adjusting the leaning and leaning of a chair back.

Background

The seat is a seat with a backrest and armrests, and is one of the mainstream configurations of people in the occasions such as families, offices and the like.

But current chair back of the chair is inclined and is adjusted, can't reduce the inside complexity of base and reduce the limitation in base inner chamber space for chair back of the chair is inclined and is adjusted the mechanism comparatively complicated, and the adjusting device who uses is mostly screw fixation, in long-term use, the bolt can produce slight looseness, influences the firm of device.

Disclosure of Invention

Aiming at the problems in the related art, the utility model provides an improved structure for adjusting the tilting of a chair back, so as to overcome the technical problems in the prior art.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to an improved chair back tilting adjustment structure which comprises a base, wherein a first connecting shaft and a second connecting shaft are arranged on the base, a telescopic spring is arranged between the first connecting shaft and the second connecting shaft, a rocker is arranged on the base, one end of the rocker is hinged with the second connecting shaft, a telescopic guide rod is arranged between the first connecting shaft and the second connecting shaft, the telescopic guide rod can stretch or stretch along with rotation of the rocker, a hole is formed in the base, the first connecting shaft can slide in the hole, a locking plate is fixedly arranged between the first connecting shaft and the second connecting shaft, a plurality of lock holes are formed in the locking plate, the lock holes are in sliding connection with bolts, a connecting piece is arranged between the bolts and the lock holes, one end of the connecting piece is attached to the second connecting shaft, a sliding seat is fixedly arranged on the bolt, the sliding seat is in sliding connection with a fixing piece, a sleeve is fixedly arranged on the fixing piece, and the sleeve penetrates through the sliding seat, and a spring is arranged between the sleeve and the sliding seat.

Further, base fixed mounting is on the fixed plate, the locking plate can be through rotatory messenger every lockhole homoenergetic with the bolt alignment around the second connecting axle, the sleeve pipe can drive the bolt follow in the lockhole withdraw from, the spring can drive the bolt and insert in the lockhole.

Further, the first connecting shaft is hinged with a protective box, and the protective box penetrates through the connecting roller.

Further, the telescopic spring is sleeved on the telescopic guide rod, and two ends of the telescopic guide rod are respectively and fixedly arranged on the first connecting shaft and the second connecting shaft.

The utility model has the following beneficial effects:

according to the utility model, the bolt, the lock hole, the sliding seat, the sleeve and the like are arranged, when the chair back is adjusted, the sleeve is downwards broken, the sliding seat is driven to move leftwards, the bolt is driven to move leftwards until the bolt is separated from the lock hole, the sleeve is upwards broken after the adjustment of the chair back angle is completed, the bolt can be reinserted into the lock hole, the angle of the chair back is further fixed, the complexity in the base and the limitation of the space in the inner cavity of the base are reduced, and the device achieves the aim of fixing the rotation angle of the rocker by using a simplest mechanism.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings that are needed for the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a side view of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is an exploded view of the internal structure of the present utility model;

fig. 4 is an enlarged view at a of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a base; 2. a first connecting shaft; 3. a second connecting shaft; 4. a telescopic spring; 5. a seesaw; 6. a telescopic guide rod; 7. a locking plate; 8. a lock hole; 9. a plug pin; 10. a connecting piece; 11. a slide; 12. a fixing member; 13. a spring; 14. a fixing plate; 15. a sleeve; 16. a connecting roller; 17. a hole; 18. and a protective box.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, based on the embodiments in the utility model, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "open," "upper," "lower," "top," "middle," "inner," and the like indicate an orientation or positional relationship, merely for convenience of description and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

Referring to fig. 1-4, the utility model discloses an improved structure for adjusting tilting of a chair back, which comprises a base 1, wherein a first connecting shaft 2 and a second connecting shaft 3 are arranged on the base 1, a telescopic spring 4 is arranged between the first connecting shaft 2 and the second connecting shaft 3, a rocker 5 is arranged on the base 1, one end of the rocker 5 is hinged with the second connecting shaft 3, a telescopic guide rod 6 is arranged between the first connecting shaft 2 and the second connecting shaft 3, the telescopic guide rod 6 can stretch or stretch along with rotation of the rocker 5, a hole 17 is formed in the base 1, the first connecting shaft 2 can slide in the hole 17, a plurality of lock holes 8 are formed in the lock holes 8, a bolt 9 is connected with the first connecting shaft 2 and the second connecting shaft 3 in a sliding manner, a connecting piece 10 is arranged between the bolt 9 and the bolt 8, one end of the connecting piece 10 is attached to the second connecting shaft 3, a sleeve pipe 11 is fixedly arranged on the base 1, a sleeve pipe 15 is fixedly arranged on the sleeve pipe 11 and fixedly arranged on the sleeve pipe 15, and the sleeve pipe 15 is fixedly arranged on the sleeve pipe 11.

In one embodiment, for the base 1, the base 1 is fixedly mounted on the fixing plate 14, the locking plate 7 can rotate around the second connecting shaft 3 to align each lock hole 8 with the latch 9, the sleeve 15 can drive the latch 9 to withdraw from the lock hole 8, and the spring 13 can drive the latch 9 to insert into the lock hole 8.

In one embodiment, for the first connecting shaft 2, the first connecting shaft 2 is hinged with a protecting box 18, and the protecting box 18 penetrates through the connecting roller 16.

In one embodiment, for the above-mentioned telescopic spring 4, the telescopic spring 4 is sleeved on the telescopic guide rod 6, and two ends of the telescopic guide rod 6 are respectively and fixedly installed on the first connecting shaft 2 and the second connecting shaft 3.

Working principle: when the chair back is required to be tilted and adjusted, the sleeve 15 is pulled downwards, the sliding seat 11 is pulled to move leftwards, the plug pin is driven to move leftwards and separate from the lock hole 8, the spring 13 is subjected to extrusion force, elastic deformation occurs, the rocker 5 rotates around the base 1, the rocker 5 rotates to drive the second connecting shaft 3 to move towards the first connecting shaft 2, the connecting piece 10 is attached to the second connecting shaft 3, the connecting piece 10 can be moved, the connecting piece 10 can be aligned with the lock hole 8 again, the sleeve 15 is pulled upwards again, the spring 13 is not subjected to extrusion force, and is restored again, the plug pin 9 is driven to fix the lock hole 8, the angle of the chair back is fixed, the complexity of the inside of the base 1 is reduced, the limitation of the inner cavity space of the base 1 is reduced, and the chair back tilt adjusting device achieves the aim of fixing the rotating angle of the rocker 5 by a simplest mechanism.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above disclosed preferred embodiments of the utility model are merely intended to help illustrate the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (4)

1. The utility model provides an improvement structure is adjusted to chair back of chair slope, includes base (1), its characterized in that: the base (1) is provided with a first connecting shaft (2) and a second connecting shaft (3), a telescopic spring (4) is arranged between the first connecting shaft (2) and the second connecting shaft (3), the base (1) is provided with a rocker (5), one end of the rocker (5) is hinged with the second connecting shaft (3), a telescopic guide rod (6) is arranged between the first connecting shaft (2) and the second connecting shaft (3), the telescopic guide rod (6) can stretch or stretch along with the rotation of the rocker (5), the base (1) is provided with a hole (17), the first connecting shaft (2) can slide in the hole (17), the first connecting shaft (2) and the second connecting shaft (3) are fixedly provided with a locking plate (7), a plurality of bolts (8) are arranged on the locking plate (7), the locking plate (8) is in sliding connection with a locking hole (9), a connecting piece (10) is arranged between the first connecting shaft (9) and the second connecting shaft (8), the sliding seat (12) is fixedly connected with a sliding seat (12), the sliding seat (12) is fixedly connected with the sliding seat (12), the sleeve (15) penetrates the slide (11) and is provided with a spring (13) therebetween.

2. The chair back tilting adjustment improvement structure according to claim 1, characterized in that the base (1) is fixedly mounted on a fixed plate (14), the locking plate (7) can be rotated around the second connecting shaft (3) so that each lock hole (8) can be aligned with a latch (9), the sleeve (15) can drive the latch (9) to withdraw from the lock hole (8), and the spring (13) can drive the latch (9) to insert into the lock hole (8).

3. The chair back tilting adjustment improvement structure according to claim 1, characterized in that the first connecting shaft (2) is hinged with a protective box (18), and the protective box (18) is penetrated with a connecting roller (16).

4. The chair back tilting adjustment improvement structure according to claim 1, wherein the telescopic spring (4) is sleeved on the telescopic guide rod (6), and two ends of the telescopic guide rod (6) are respectively and fixedly installed on the first connecting shaft (2) and the second connecting shaft (3).