CN213605118U

CN213605118U - Tablet chair with lifting rapid adjusting function

Info

Publication number: CN213605118U
Application number: CN202021779091.0U
Authority: CN
Inventors: 莫俊华; 钱进; 张永生
Original assignee: Anhui Lujiang Junhua Steel Wood Furniture Co ltd
Current assignee: Anhui Lujiang Junhua Steel Wood Furniture Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-07-06
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a tablet chair with lifting and rapid adjusting functions, which comprises a bottom plate, a back plate, a supporting plate and a lifting component, wherein the back plate is arranged at the rear part of the top surface of the bottom plate, a pair of L-shaped rods are arranged at the middle rear part of the bottom surface of the bottom plate, and the outer end part of each L-shaped rod is respectively fixedly connected with the two sides of the back surface of the back plate; the bottom surface both sides middle part of bottom plate is equipped with a pair of fixed block, and the bottom surface both sides below of bottom plate is equipped with a pair of backup pad, and both ends all are equipped with the supporting seat around every backup pad, and every fixed block all is connected through the backup pad middle part that lifting unit and correspond. The utility model provides a adaptation problem of tablet chair height and height, let the student of different heights use the tablet chair that matches with it, and adjustment method is simple very much, has increased the stability of tablet chair, has provided very big facility for the student has the correct reading and writing posture.

Description

Tablet chair with lifting rapid adjusting function

Technical Field

The utility model relates to a desk chair technical field especially relates to a tablet chair with lift quick adjustment function.

Background

At present, the height of a seat surface of a school chair for students is not adjustable, the students are different in body and are continuously high, schools cannot distribute school chairs according to the heights of the students and cannot match the school chairs with the same type, but the school chairs need the height of the school chair to be matched with the heights of the students, so that the school chair with the adjustable seat surface height is necessary to use, although a lot of chairs with the height of the seat surface adjusted hydraulically exist in commodities, the chairs are easy to damage, poor in stability and not beneficial to sitting up of the students, and therefore the school chair is difficult to popularize and use in the students.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a tablet chair with a lifting quick adjustment function.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a tablet chair with a lifting rapid adjusting function comprises a bottom plate, a back plate, a supporting plate and a lifting assembly, wherein the back plate is arranged behind the top surface of the bottom plate, a pair of L-shaped rods are arranged behind the bottom surface of the bottom plate, and the outer end part of each L-shaped rod is fixedly connected with the two sides of the back surface of the back plate; the bottom surface both sides middle part of bottom plate is equipped with a pair of fixed block, the bottom surface both sides below of bottom plate is equipped with a pair of backup pad, every both ends all are equipped with the supporting seat around the backup pad, and every fixed block all is connected through lifting unit and the backup pad middle part that corresponds.

Preferably, the lifting assembly comprises a lifting inner cylinder, a lifting sleeve and a lifting spring, the lifting inner cylinder is arranged on the bottom surface of the fixing block, a limiting ring is arranged in the middle of the top surface of the supporting plate, the lifting sleeve is arranged in the limiting ring, the bottom of the lifting inner cylinder is inserted in the lifting sleeve in a sliding manner, and a lifting slider is arranged at the bottom of the lifting inner cylinder in the lifting sleeve; the bottom in the lifting sleeve is provided with a lifting spring, and the top end of the lifting spring is fixedly connected with the bottom surface of the lifting slide block.

Preferably, the lifting inner cylinder is uniformly provided with a threaded through hole in a concave manner, the top of the lifting sleeve is provided with a bolt through hole in a concave manner, a fixing bolt is inserted into the bolt through hole, and the fixing bolt is matched with one of the threaded through holes for screw locking.

Preferably, the front and rear parts of the top of the lifting sleeve are respectively hinged with the bottoms of the pair of limiting sliding cylinders; the front end and the rear end of each side of the bottom surface of the bottom plate are respectively hinged with the top ends of the pair of limiting slide bars, and the bottom end of each limiting slide bar is slidably inserted into the corresponding limiting slide cylinder; and each limiting sliding cylinder is internally provided with a limiting spring, and the top end of each limiting spring is fixedly connected with the bottom end of the corresponding limiting sliding rod.

Preferably, a positioning slide rail is arranged on the inner side surface of the lifting sleeve, and a positioning slide block is clamped in the middle of the positioning slide rail; a pair of hinge rods is arranged below the bottom surface of the bottom plate, and the outer side surface of the positioning sliding block is hinged with the bottom ends of the hinge rods; the top end of the inner side of the lifting inner cylinder is hinged with the top end of the hinge rod.

Preferably, a cushion is laid on the top surface of the bottom plate, and a back cushion is laid on the front surface of the back plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the height of the student, the lifting inner cylinder is pulled to drive the lifting slide block to slide along the lifting sleeve, and the lifting spring is driven to be stretched, so that the relative height between the bottom plate and the supporting plate can be conveniently adjusted;

2. under the cooperation of the hinging action, the limiting slide rod is driven to slide along the limiting slide cylinder, the limiting spring is driven to be stretched, the opening and closing angles of the two hinging rods are driven to change, and the positioning slide block is driven to slide along the positioning slide rail, so that the stability of the bottom plate in use is improved;

to sum up, the utility model provides a adaptation problem of tablet chair height and height, let the student of different heights use the tablet chair that matches with it, and the adjustment method is simple very much, has increased the stability of tablet chair, has the correct reading and writing posture for the student and provides very big facility.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limitation. In the drawings:

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a left side view of the present invention;

fig. 4 is an enlarged view of a point a in fig. 1 according to the present invention;

number in the figure: the device comprises a bottom plate 1, a cushion 11, an L-shaped rod 12, a back plate 13, a back cushion 14, a fixing block 2, a lifting inner cylinder 21, a threaded through hole 22, a lifting sleeve 23, a bolt through hole 24, a lifting slide block 25, a lifting spring 26, a limiting ring 27, a supporting plate 28, a supporting seat 29, a positioning slide rail 3, a positioning slide block 31, a hinge rod 32, a limiting slide cylinder 33, a limiting spring 34 and a limiting slide rod 35.

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.

Example 1: in order to solve the problem of adapting the height of a tablet chair to the height of the tablet chair and increase the stability of the tablet chair, the embodiment provides a tablet chair with a lifting and quick adjusting function, and referring to fig. 1-4, the tablet chair comprises a bottom plate 1, a back plate 13, a supporting plate 28 and a lifting assembly, the bottom plate 1 is in a horizontal and transverse rectangular plate shape, the back plate 13 which is vertically placed is arranged behind the top surface of the bottom plate 1, a pair of L-shaped rods 12 which are symmetrically and fixedly connected are arranged behind the bottom surface of the bottom plate 1, the outer end part of each L-shaped rod 12 is fixedly connected with two sides of the back surface of the back plate 13 respectively, and the L-shaped rods 12 facilitate; bottom plate 1's bottom surface both sides middle part is equipped with fixed block 2 of a pair of symmetry rigid coupling, bottom plate 1's bottom surface both sides below is equipped with a pair of backup pad 28 that vertical parallel placed, every both ends all are equipped with supporting seat 29 around backup pad 28, and supporting seat 29 is the trapezoidal seat of rubber material, increases its frictional force with ground contact, has increased tablet chair stability, and every fixed block 2 all is connected through the backup pad 28 middle part that lifting unit and correspond, cushion 11 has been laid to bottom plate 1's top surface, back of the body pad 14 has been laid in the front of backplate 13, and cushion 11 cooperation back of the body pad 14 has increased the travelling comfort when student uses.

In the utility model, the lifting component comprises a lifting inner cylinder 21, a lifting sleeve 23 and a lifting spring 26, the bottom surface of the fixed block 2 is provided with the lifting inner cylinder 21 which is fixedly connected vertically, the middle part of the top surface of the supporting plate 28 is provided with a limit ring 27, the lifting sleeve 23 which is fixedly connected vertically is arranged in the limit ring 27, the bottom of the lifting inner cylinder 21 is inserted in the lifting sleeve 23 in a sliding manner, the bottom of the lifting inner cylinder 21 which is positioned in the lifting sleeve 23 is provided with a lifting slider 25, and the lifting slider 25 is matched with the lifting sleeve 23 to slide in the lifting sleeve 23; the bottom in the lifting sleeve 23 is provided with a lifting spring 26, the top end of the lifting spring 26 is fixedly connected with the bottom surface of the lifting slider 25, and the lifting spring 26 is matched with the lifting slider 25 for use, so that the sliding stability of the lifting inner cylinder 21 along the lifting sleeve 23 is improved; evenly sunken have the screw thread through-hole 22 that transversely runs through on the lift inner tube 21, the sunken bolt through-hole 24 that has transversely to run through in the top of lift sleeve 23, just bolt through-hole 24 interpolation is equipped with fixing bolt, fixing bolt cooperation and one of them screw thread through-hole 22 spiral locking, fixing bolt has made things convenient for lift inner tube 21, lift sleeve 23 after adjusting to fix.

In the utility model, a pair of first double-lug seats with outward openings are arranged at the front and rear parts of the top part of the lifting sleeve 23, and the opening of each first double-lug seat is movably hinged with the bottom part of the limiting slide cylinder 33 through a pin shaft; a pair of second double-lug seats with downward openings are arranged at the front end and the rear end of each side of the bottom surface of the bottom plate 1, the openings of the second double-lug seats are movably hinged with the top ends of the limiting slide rods 35 through pin shafts, and the bottom end of each limiting slide rod 35 is slidably inserted into the corresponding limiting slide cylinder 33; every all install spacing spring 34 in the spacing slide cartridge 33, every the top of spacing spring 34 all with the bottom rigid coupling of the spacing slide bar 35 that corresponds, spacing spring 34 has increased the gliding stability of spacing slide bar 35 along spacing slide cartridge 33.

In the utility model, the inner side of the lifting sleeve 23 is provided with a positioning slide rail 3 which is fixedly connected vertically, and the middle part of the positioning slide rail 3 is clamped with a positioning slide block 31 which is connected in a sliding way; a pair of hinge rods 32 which are arranged in a crossed manner is arranged below the bottom surface of the bottom plate 1, a first hinge seat with an outward opening is arranged on the outer side surface of the positioning sliding block 31, and the opening of the first hinge seat is movably hinged with the bottom ends of the hinge rods 32 through a pin shaft; the inboard top of lift inner tube 21 is equipped with the articulated seat of second that the opening is inside, through round pin axle and articulated rod 32's top activity hinge joint in the opening of the articulated seat of second, location slider 31 slides along location slide rail 3, has increased the stability of two articulated rod 32 angles of opening and shutting.

Example 2: the utility model discloses when specifically using, its operating procedure is as follows:

step one, adjusting a lifting inner cylinder 21 and a lifting sleeve 23 according to the height of a student, pulling the lifting inner cylinder 21 to drive a lifting slider 25 to slide along the lifting sleeve 23, and driving a lifting spring 26 to be stretched;

step two, under the cooperation of the hinging action, the limiting slide rod 35 is driven to slide along the limiting slide cylinder 33, and the limiting spring 34 is driven to be stretched;

step three, simultaneously driving the two hinge rods 32 to change the opening and closing angle, and driving the positioning slide block 31 to slide along the positioning slide rail 3;

step four, after the relative height between the bottom plate 1 and the supporting plate 28 is adjusted, taking a fixing bolt to penetrate through the bolt through hole 24 and be matched with one of the thread through holes 22 to be locked in a spiral mode;

and step five, laying a cushion 11 on the top surface of the bottom plate 1, laying a back cushion 14 on the front surface of the back plate 13, and after finishing, using the back cushion for students.

The utility model provides a adaptation problem of tablet chair height and height, let the student of different heights use the tablet chair that matches with it, and adjustment method is simple very much, has increased the stability of tablet chair, has provided very big facility for the student has the correct reading and writing posture.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a tablet chair with lift quick adjustment function, includes bottom plate (1), backplate (13), backup pad (28), lifting unit, its characterized in that: a back plate (13) is arranged behind the top surface of the bottom plate (1), a pair of L-shaped rods (12) is arranged behind the bottom surface of the bottom plate (1), and the outer end of each L-shaped rod (12) is fixedly connected with two sides of the back surface of the back plate (13) respectively; the bottom surface both sides middle part of bottom plate (1) is equipped with a pair of fixed block (2), the bottom surface both sides below of bottom plate (1) is equipped with a pair of backup pad (28), every both ends all are equipped with supporting seat (29) around backup pad (28), and every fixed block (2) all are connected through lifting unit and backup pad (28) middle part that corresponds.

2. The tablet chair with the function of rapidly adjusting the lifting according to claim 1, wherein: the lifting assembly comprises a lifting inner cylinder (21), a lifting sleeve (23) and a lifting spring (26), the lifting inner cylinder (21) is arranged on the bottom surface of the fixing block (2), a limiting ring (27) is arranged in the middle of the top surface of the supporting plate (28), the lifting sleeve (23) is arranged in the limiting ring (27), the bottom of the lifting inner cylinder (21) is slidably inserted into the lifting sleeve (23), and a lifting slide block (25) is arranged at the bottom of the lifting inner cylinder (21) in the lifting sleeve (23); the bottom in the lifting sleeve (23) is provided with a lifting spring (26), and the top end of the lifting spring (26) is fixedly connected with the bottom surface of the lifting slide block (25).

3. The tablet chair with the function of rapid adjustment of lifting as claimed in claim 2, wherein: the lifting inner cylinder (21) is uniformly sunken with a threaded through hole (22), the top of the lifting sleeve (23) is sunken with a bolt through hole (24), a fixing bolt is inserted into the bolt through hole (24), and the fixing bolt is matched with one of the threaded through holes (22) to be locked in a spiral mode.

4. The tablet chair with the function of rapid adjustment of lifting as claimed in claim 2, wherein: the front and rear parts of the top of the lifting sleeve (23) are respectively hinged with the bottoms of the pair of limiting sliding cylinders (33); the front end and the rear end of each side of the bottom surface of the bottom plate (1) are respectively hinged with the top ends of a pair of limiting slide bars (35), and the bottom end of each limiting slide bar (35) is slidably inserted into the corresponding limiting slide cylinder (33); and each limiting sliding cylinder (33) is internally provided with a limiting spring (34), and the top end of each limiting spring (34) is fixedly connected with the bottom end of the corresponding limiting sliding rod (35).

5. The tablet chair with the function of rapid adjustment of lifting as claimed in claim 2, wherein: a positioning slide rail (3) is arranged on the inner side surface of the lifting sleeve (23), and a positioning slide block (31) is clamped in the middle of the positioning slide rail (3); a pair of hinge rods (32) is arranged below the bottom surface of the bottom plate (1), and the outer side surface of the positioning slide block (31) is hinged with the bottom ends of the hinge rods (32); the top end of the inner side of the lifting inner cylinder (21) is hinged with the top end of the hinge rod (32).

6. The tablet chair with the function of rapidly adjusting the lifting according to claim 1, wherein: a cushion (11) is laid on the top surface of the bottom plate (1), and a back cushion (14) is laid on the front surface of the back plate (13).