CN219270437U

CN219270437U - Table and chair supporting mechanism, study table and study chair

Info

Publication number: CN219270437U
Application number: CN202223500960.3U
Authority: CN
Inventors: 王仁义; 王凯; 王雅; 田增强
Original assignee: Shaanxi Shimeiyun Technology Co ltd
Current assignee: Shaanxi Shimeiyun Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-30
Anticipated expiration: 2032-12-27

Abstract

The utility model provides a table and chair supporting mechanism, a study table and a study chair, which relate to the technical field of desks and aims to solve the problem that in the prior art, the height adjustment range of a lifting table and chair is small due to the fact that the lifting table and chair is connected to the upper side of a foot rod through the foot rod. The lifting range of the table and chair supporting mechanism is large, and the lifting range can meet the requirement of full-width adjustment of lifting tables and chairs from No. 10 to No. 1.

Description

Table and chair supporting mechanism, study table and study chair

Technical Field

The utility model relates to the technical field of desks, in particular to a desk and chair supporting mechanism, a study desk and a study chair.

Background

The learning desk is a novel, scientific, humanized and practical learning auxiliary tool, is suitable for children to teenagers of 3-18 years old, and can be used for lifting and adjusting and tilting a desk top. The user can freely adjust the height of the desktop which is most suitable for the user according to the heights of different age groups. In order to standardize the use standard of the desk and the chair, the Chinese quality inspection bureau standardizes the study tables required by different heights, and sets the relevant sizes of the desk and the chair from No. 10 to No. 1 to meet the use requirements of students with the heights of 110cm-180 cm.

The prior desk and chair generally realize the lifting of the desk and chair by connecting the legs of the desk and chair through the upper sleeve and the lower sleeve, the legs of the desk and chair are connected to the upper sides of the legs of the desk and chair, but the adjusting range of the lifting desk and chair cannot realize the full-width standard adjustment from No. 10 to No. 1, for example, the desk top height of the No. 1 desk is 76cm, the chair surface height of the No. 1 chair is 44cm, the desk top height of the No. 10 desk is 49cm, the chair surface height of the No. 10 chair is 27cm, and the upper sleeve and the lower sleeve meet the height requirement of the No. 1 desk and chair after being stretched, but cannot be reduced to meet the height requirement of the No. 10 desk and chair when the upper sleeve and the lower sleeve are shortened, and the height of the No. 8 desk and chair can only be adjusted at most, so the desk and chair is unfavorable for children in low age to use, and the children in good sitting position and habit of eyes.

Disclosure of Invention

The utility model aims to provide a table and chair supporting mechanism, a study table and a study chair, which are used for solving the problem that in the prior art, the height adjustment range of the lifting table and chair is small due to the fact that the lifting table and chair is connected to the upper sides of foot rods through leg rods.

The utility model provides a table and chair supporting mechanism which comprises lifting legs, a lifting screw rod assembly and supporting legs, wherein the lifting screw rod assembly is arranged in the lifting legs, the supporting legs are of hollow tubular structures and are vertically arranged at the bottom ends of the lifting legs, insertion holes are formed in the upper pipe walls of the supporting legs, the bottoms of the lifting legs are inserted into the insertion holes, the bottom ends of the lifting legs are abutted against the lower pipe walls of the supporting legs, and the bottom ends of the lifting screw rod assembly are connected with the lower pipe walls of the supporting legs through fixed supporting pieces.

As a preferred scheme of the utility model, the lifting legs are respectively welded with the upper pipe wall and the lower pipe wall of the supporting leg at the insertion holes.

As a preferred embodiment of the present utility model, the area of the fixed support member contacting the lower pipe wall of the support leg is larger than the area of the bottom surface of the lifting screw assembly.

As a preferable mode of the utility model, the fixing support comprises a connecting part and two supporting legs, the two supporting legs are respectively connected to two sides of the connecting part, the connecting part is arranged in an upward arch mode relative to the supporting legs, the two supporting legs extend to opposite sides, and the fixing support is connected with the lifting screw rod assembly through the connecting part and is connected with the lower pipe wall of the supporting leg through the supporting legs.

As a preferable scheme of the utility model, a bump is arranged at the bottom end of the lifting screw rod assembly, a first connecting hole matched with the bump is arranged on the connecting part, and the fixed supporting piece is fixed on the bump through the first connecting hole by a first connecting piece to be connected with the lifting screw rod assembly.

As a preferred embodiment of the present utility model, a second connection hole is provided in the leg, and the fixing support member is fixed to the lower tube wall of the support leg through the second connection hole by a second connection member.

As a preferable mode of the utility model, the lifting leg comprises a leg outer tube and a leg inner tube, the bottom end of the leg outer tube is connected with the supporting leg, the leg inner tube is arranged on the inner side of the leg outer tube, the lifting screw rod assembly is arranged in the leg inner tube, and the telescopic movement of the lifting screw rod assembly can drive the leg inner tube to move up and down in a telescopic manner relative to the leg outer tube.

As a preferable scheme of the utility model, the lifting screw rod assembly comprises a sleeve and a screw rod, wherein an internal thread is arranged in the sleeve, an external thread matched with the internal thread is arranged on the outer side of the screw rod, the screw rod is connected in the sleeve in a matched rotation mode through the external thread and the internal thread, and the top end of the screw rod is connected with a driving mechanism for driving the screw rod to rotate.

The utility model also provides a study table, which comprises the table and chair supporting mechanism and a table top, wherein the top ends of the leg inner tubes of the table and chair supporting mechanism are connected with the table top, and the top ends of the lead screws of the lifting lead screw assembly are connected with the table top through lifting heads.

The utility model also provides a study chair, which comprises the table and chair supporting mechanism and a chair surface, wherein the top ends of the leg inner tubes of the table and chair supporting mechanism are connected with the chair surface, and the top ends of the lead screws of the lifting lead screw assembly are connected with the chair surface through lifting heads.

Compared with the prior art, the utility model has the following positive effects:

1. the table and chair supporting mechanism comprises lifting legs, a lifting screw rod assembly and supporting legs, wherein the lifting screw rod assembly is arranged in the lifting legs, the supporting legs are of hollow tubular structures and are vertically arranged at the bottom ends of the lifting legs, insertion holes are formed in the upper pipe walls of the supporting legs, the bottoms of the lifting legs are inserted into the insertion holes, the bottom ends of the lifting legs are abutted to the lower pipe walls of the supporting legs, and the bottom ends of the lifting screw rod assembly are connected with the lower pipe walls of the supporting legs through fixing supporting pieces. Compared with the traditional method that the lifting legs are connected to the upper sides of the table legs, the table and chair supporting mechanism increases the overlapping length of the lifting legs when the lifting legs are connected with the supporting legs, on one hand, the stability of the connection of the lifting legs and the supporting legs is increased, on the other hand, the inner space of the supporting legs is effectively utilized, the overlapping length of the inner sleeve and the outer sleeve of the sleeve type lifting legs is increased within a limited height space range, the lifting stroke range of the lifting legs is increased, the lifting range of the lifting legs can simultaneously meet the full-width adjustment of the lifting table and chair from No. 10 to No. 1, and the study and use requirements of students of different age groups are met.

Drawings

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

FIG. 1 is a schematic view of a table and chair support mechanism according to the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is an enlarged view of a portion of B in FIG. 1;

FIG. 4 is a schematic view of the connection of the fixed support and the lifting screw assembly according to the present utility model;

FIG. 5 is a schematic diagram of a driving mechanism according to the present utility model;

FIG. 6 is a schematic view of a learning table according to the present utility model;

fig. 7 is a schematic structural view of the learning chair according to the present utility model.

In the figure: 1. supporting feet; 11. an upper tube wall; 12. a lower pipe wall; 13. a jack; 14. foot pads; 2. lifting legs; 21. a leg outer tube; 22. leg inner tube; 3. a fixed support; 31. a support leg; 311. a second connection hole; 32. a connection part; 321. a first connection hole; 4. a lifting screw assembly; 41. a sleeve; 411. a groove; 412. an elastic member; 413. a clamping block; 42. a screw rod; 421. an annular groove; 43. a lifting head; 431. a first helical gear; 432. a second helical gear; 433. a handle; 44. a bump; 5. a tabletop; 51. a desktop stand; 6. a seat surface; 61. a seat support; 7. a chair back; 81. a first connector; 82. and a second connecting piece.

Detailed Description

In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "front," "rear," "head," "tail," and the like are merely for convenience in describing and simplifying the utility model based on the orientation or positional relationship shown in the drawings and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

The following describes the embodiments of the present utility model in further detail with reference to the drawings.

Example 1:

the table and chair supporting mechanism provided by the embodiment, as shown in fig. 1-2, comprises a lifting leg 2, a lifting screw rod assembly 4 and a supporting leg 1, wherein the lifting screw rod assembly 4 is arranged inside the lifting leg 2, and the supporting leg 1 is of a hollow tubular structure and is vertically arranged at the bottom end of the lifting leg 2. The upper pipe wall 11 of the supporting leg 1 is provided with a jack 13, and the jack 13 extends to the lower pipe wall 12 of the supporting leg 1. The bottom of the lifting leg 2 is inserted into the insertion hole 13 and the bottom end of the lifting leg abuts against the lower pipe wall 12 of the supporting leg 1. The bottom end of the lifting screw rod assembly 4 is connected with the lower pipe wall 12 of the supporting leg through the fixed supporting piece 3.

The table and chair supporting mechanism of this embodiment is connected with supporting legs 1 through inserting lifting legs 2 in supporting legs 1, compare in the upside of traditional being connected table leg in the table leg, overlap length when having increased lifting legs 2 and supporting legs 1 and being connected, on the one hand, increase lifting legs 2 and the steadiness of being connected of supporting legs 1, on the other hand effectively utilize the inner space of supporting legs 1, in limited altitude space scope, increase the overlap length of the inside and outside sleeve pipe of sleeve pipe type lifting legs 2, increase lifting travel range of lifting legs 2, make lifting range of lifting legs 2 can satisfy lifting table and chair from the full width adjustment of No. 10 to No. 1, satisfy the demand that the student of different age bracket used of study.

Preferably, the lifting leg 2 is welded with the upper pipe wall 11 and the lower pipe wall 12 of the supporting leg at the jack 13 respectively, and the peripheral side of the lifting leg 2 is welded with the upper pipe wall 11 and the lower pipe wall of the supporting leg respectively, so that the connection firmness between the lifting leg 2 and the supporting leg 1 is improved.

Preferably, the area of the fixed support 3 contacting the lower tube wall 12 of the support foot is larger than the area of the bottom surface of the elevator screw assembly 4. The fixed support 3 can increase the connection area between the lifting screw rod assembly 4 and the lower pipe wall 12 of the supporting leg, and increase the connection stability between the lifting screw rod assembly 4 and the lower pipe wall 12 of the supporting leg.

Preferably, as shown in fig. 2 and 4, the fixed support 3 includes a connection portion 32 and two legs 31, the two legs 31 being connected to both sides of the connection portion 32, respectively. And the connecting parts 32 are arranged in an upward arch manner relative to the supporting legs 31, the two supporting legs 31 extend to the opposite sides, and the fixed supporting piece 3 is connected with the lifting screw rod assembly 4 through the connecting parts 32 and is connected with the lower pipe wall 12 of the supporting foot through the supporting legs 31.

The two landing legs 31 are symmetrically arranged about the central line of the connecting part 32, and the two landing legs 31 have symmetrical supporting effect on the connecting part 32, so that compared with the traditional mode of connecting the bottom end of the lifting screw with a table leg through screws, the lower pipe wall 12 of the lifting screw assembly 4 and the supporting leg is firmly fixed, the lifting screw assembly 4 is prevented from shaking relative to the supporting leg, and the lifting screw assembly 4 has better bearing capacity.

Preferably, as shown in fig. 2, a bump 44 is provided at the bottom end of the lifting screw assembly 4, a first connection hole 321 adapted to the bump 44 is provided on the connection portion 32, and the fixed support 3 is fixed on the bump 44 through the first connection hole 321 by the first connection piece 81 to connect with the lifting screw assembly 4, so as to further improve the connection stability between the lifting screw assembly 4 and the fixed support 3.

Preferably, as shown in fig. 2 and 4, a second connection hole 311 is provided on the leg 31, and the fixing support 3 is fixed to the lower tube wall 12 of the support leg through the second connection hole 311 by the second connection member 82.

Specifically, the first connection member 81 and the second connection member 82 are screws.

Preferably, as shown in fig. 1, the lifting leg 2 comprises a leg outer tube 21 and a leg inner tube 22, the bottom end of the leg outer tube 21 is connected with the supporting leg 1, the leg inner tube 22 is arranged on the inner side of the leg outer tube 21, the lifting screw rod assembly 4 is arranged in the leg inner tube 22, and the telescopic movement of the lifting screw rod assembly 4 can drive the leg inner tube 22 to move up and down relative to the leg outer tube 21. The elevating leg 2 adjusts the length of the elevating leg 2 by the up-and-down telescopic movement of the leg inner pipe 22 with respect to the leg outer pipe 21.

Preferably, as shown in fig. 1, the lifting screw assembly 4 comprises a sleeve 41 and a screw 42, wherein an internal thread is arranged in the sleeve 41, an external thread matched with the internal thread is arranged on the outer side of the screw 42, the screw 42 is rotatably connected in the sleeve 41 through the matching of the external thread and the internal thread, and the top end of the screw 42 is connected with a driving mechanism for driving the screw 42 to rotate. The drive mechanism drives the screw 42 to rotate so as to cause the screw 42 to move telescopically relative to the sleeve 41.

Specifically, as shown in fig. 5, the driving mechanism includes a first bevel gear 431 fixedly connected with the screw 42, a second bevel gear 432 meshed with the first bevel gear 431, and a handle 433 driving the second bevel gear 432 to rotate, the driving mechanism is disposed inside the lifting head 43, and the handle passes through the lifting head 43 and is connected with a central axis of the second bevel gear 432 to drive the first bevel gear 431 to rotate. The central axis of the first bevel gear 431 is perpendicular to the central axis of the second bevel gear 432, and the central rotating shafts of the first bevel gear 431 and the second bevel gear 432 are connected with the lifting head 43 through bearings.

Preferably, as shown in fig. 3, a groove 411 is provided on the top inner arm of the sleeve 41, an elastic member 412 and a clamping block 413 are provided in the groove 411, the clamping block 413 is connected to the sleeve 41 through the elastic member 412, an annular groove 421 is provided on the bottom outer wall of the screw rod around the circumference side thereof, and the longitudinal section shape of the annular groove 421 is adapted to the shape of the clamping block. When the screw 42 extends upwards to the highest position relative to the sleeve, the clamping blocks 413 are clamped in the annular grooves 421, so that the screw 42 is limited to continuously ascend relative to the sleeve 41, and the screw 42 is prevented from slipping relative to the sleeve 41. The lower side surface of the clamping block 413 is a plane, and the upper side surface is an arc surface connected with the lower side surface, so that when the clamping block 413 is clamped in the annular groove 421, the screw 42 can be limited to move upwards relative to the sleeve 41, and the screw 42 can move downwards relative to the sleeve 41.

Example 2

The embodiment provides a learning table, which comprises a table and chair supporting mechanism and a table top 5 in the embodiment 1, wherein the top ends of leg inner tubes 22 of the table and chair supporting mechanism are connected with the table top 5, and the top ends of screw rods 42 of a lifting screw rod assembly are connected with the table top 5 through lifting heads 43. The table top 5 is mounted on a table top stand 51.

In this embodiment, the top end of the inner leg tube 22 and the connection mode between the lifting head 43 and the table top 5 may be direct connection or indirect connection, that is, the lifting head 43 may be connected with the inner leg tube 22 or connected with the table top support 51 disposed under the table top 5, and the top end of the inner leg tube 22 may be connected with the table top support 51, so that the screw 42 of the lifting screw assembly 4 can move up and down relative to the sleeve 41 to drive the inner leg tube 22 of the lifting leg 2 to move up and down relative to the outer leg tube 21, and simultaneously drive the table top support 51 and the table top 5 to move up and down, thereby adjusting the set height of the table top 5.

When the table and chair supporting mechanism is applied to the study table, the study table can realize the height adjustment from the table No. 1 to the table No. 10, namely from 49cm to 76cm, and the adjustment stroke is 27cm.

Example 3

The present embodiment provides a learning chair comprising the table and chair support mechanism and the chair surface 6 of embodiment 1, wherein the top ends of the leg inner tubes 22 of the table and chair support mechanism are connected with the chair surface 6, and the top ends of the screw rods 42 of the lifting screw rod assembly are connected with the chair surface 6 through the lifting heads 43. The seat 6 is provided on the seat support 61, and the back 7 is connected to the back side of the seat support 61.

In this embodiment, the top end of the leg inner tube 22 and the connection mode between the lifting head 43 and the seat 6 may be direct connection or indirect connection, that is, the lifting head 43 may be connected with the leg inner tube 22 or connected with the seat support 61 disposed under the seat 6, and the top end of the leg inner tube 22 may be connected with the seat support 61, so that the screw 42 of the lifting screw assembly 4 can move up and down relative to the sleeve 41 to drive the leg inner tube 22 of the lifting leg 2 to move up and down relative to the leg outer tube 21, and simultaneously drive the seat support 61 and the seat 6 to move up and down, thereby adjusting the set height of the seat 6.

When the table and chair supporting mechanism is applied to the study chair, the study chair can realize the height adjustment from the chair No. 1 to the chair No. 10, namely, the adjustment range is from 27cm to 44cm, and the adjustment range is 17cm.

The above description is only of the preferred embodiments of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can make several variations and modifications without departing from the inventive concept, and it is intended to cover the scope of the present utility model.

Claims

1. The utility model provides a table chair supporting mechanism, its characterized in that, including lift leg (2), lift lead screw subassembly (4) and supporting legs (1), lift lead screw subassembly (4) set up in inside lift leg (2), supporting legs (1) be hollow tubular structure and set up perpendicularly in the bottom of lift leg (2), be provided with jack (13) on last pipe wall (11) of supporting legs (1), the bottom of lift leg (2) insert in jack (13) and its bottom support in on lower pipe wall (12) of supporting legs (1), the bottom of lift lead screw subassembly (4) pass through fixed support piece (3) with lower pipe wall (12) of supporting legs are connected.

2. A table and chair support according to claim 1, characterized in that the lifting leg (2) is welded to the upper (11) and lower (12) tube walls of the support foot at the insertion hole (13), respectively.

3. A table and chair support mechanism according to claim 1, characterized in that the area of the fixed support (3) in contact with the lower tube wall (12) of the support foot is larger than the area of the bottom surface of the lifting screw assembly (4).

4. A table and chair support mechanism according to claim 3, characterized in that the fixed support (3) comprises a connecting part (32) and two supporting legs (31), the two supporting legs (31) are respectively connected to two sides of the connecting part (32), the connecting part (32) is arranged in an upward arch manner relative to the supporting legs (31), the two supporting legs (31) are arranged in an extension manner towards opposite sides, and the fixed support (3) is connected with the lifting screw assembly (4) through the connecting part (32) and is connected with the lower pipe wall (12) of the supporting leg through the supporting legs (31).

5. A table and chair support mechanism according to claim 4, characterized in that a bump (44) is provided at the bottom end of the lifting screw assembly (4), a first connection hole (321) adapted to the bump (44) is provided on the connection portion (32), and the fixing support (3) is fixed on the bump (44) through a first connection piece (81) passing through the first connection hole (321) to be connected with the lifting screw assembly (4).

6. A table and chair support mechanism according to claim 4, characterized in that a second connection hole (311) is provided in the leg (31), and the fixed support (3) is fixed to the lower tube wall (12) of the support foot through the second connection hole (311) by means of a second connection piece (82).

7. A table and chair support mechanism according to claim 1, characterized in that the lifting leg (2) comprises a leg outer tube (21) and a leg inner tube (22), the bottom end of the leg outer tube (21) is connected with the supporting leg (1), the leg inner tube (22) is arranged on the inner side of the leg outer tube (21), the lifting screw assembly (4) is arranged in the leg inner tube (22), and the telescopic movement of the lifting screw assembly (4) can drive the leg inner tube (22) to move up and down relative to the leg outer tube (21).

8. A table and chair support mechanism according to claim 1, characterized in that the lifting screw assembly (4) comprises a sleeve (41) and a screw rod (42), an internal thread is arranged in the sleeve (41), an external thread matched with the internal thread is arranged on the outer side of the screw rod (42), the screw rod (42) is rotatably connected in the sleeve (41) through the cooperation of the external thread and the internal thread, and a driving mechanism for driving the screw rod (42) to rotate is connected at the top end of the screw rod (42).

9. A learning desk, characterized by comprising the desk and chair supporting mechanism and a desk top (5) according to any one of claims 1-8, wherein the top end of a leg inner tube (22) of the desk and chair supporting mechanism is connected with the desk top (5), and the top end of a screw rod (42) of a lifting screw rod assembly is connected with the desk top (5) through a lifting head (43).

10. A learning chair, characterized by comprising the table-chair supporting mechanism and a chair surface (6) according to any one of claims 1-8, wherein the top end of a leg inner tube (22) of the table-chair supporting mechanism is connected with the chair surface (6), and the top end of a screw (42) of the lifting screw assembly is connected with the chair surface (6) through a lifting head (43).