Table and chair with multi-stage lifting mechanism

Abstract

The utility model relates to the related technical field of lifting structures of tables and chairs, and discloses a table and chair with a multi-stage lifting mechanism, which comprises a table body, the table body comprises a base, two support groups and a top plate which are sequentially connected from bottom to top, the bottoms of the two support groups are provided with driving parts for driving the tops to lift up and down, and the top plate is connected with the base. And a lifting piece is arranged on the upper side of the top plate. The table with a stable structure can be formed through the arrangement of the base, the support set and the top plate in the table body, and preliminary lifting adjustment of the table body can be achieved by adjusting the shape of the support set through the arrangement of the driving piece; and by arranging the lifting piece, the purpose of conveniently carrying out secondary lifting adjustment on the table plate subsequently can be achieved, the purpose of conveniently adjusting the height by an operator while more lifting adjustment space is met, the whole table body structure is relatively stable, and the overall practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of desk and chair lifting structures, in particular to a desk and chair with a multi-stage lifting mechanism. Background Art

[0002] A table is a commonly used piece of furniture and is widely used in ordinary families and the office field. At present, people's requirements for tables are also getting higher and higher. They hope to improve the portability while retaining the traditional functions of the table.

[0003] At the same time, most of the existing lifting tables are rather cumbersome during the lifting process, and their adjustability is poor in meeting the height requirements of people with different heights. Traditional fixed-height tables have certain limitations in use and cannot meet the usage needs of different people. To solve such problems, a desk and chair with a multi-stage lifting mechanism is proposed. Summary of the Utility Model

[0004] The utility model provides a desk and chair with a multi-stage lifting mechanism, which solves the problems in the above background art.

[0005] The utility model solves its technical problems by adopting the following technical solutions:

[0006] A desk and chair with a multi-stage lifting mechanism includes a table body. The table body includes a base, two support groups, and a top plate that are sequentially connected from bottom to top. A driving member for driving the top to move up and down is provided at the bottom of the two support groups. A lifting member is provided on the upper side of the top plate. The lifting member includes a threaded rod threadedly connected to the inside of the top plate. A lifting plate is provided at the top of the threaded rod. The lifting plate is circularly arranged, and a table board is rotatably provided on one side of the outer periphery of the lifting plate. Limiting rods for rotationally limiting the table board are provided on the bottom surfaces at both ends of the table board. The limiting rods extend downward into the top plate and are vertically slidably arranged along the top plate up and down.

[0007] Preferably, the support group includes a first support and a second support that are cross-rotatably arranged. The bottom of the first support is hinged in the base. The bottom of the second support horizontally slides along the length direction of the base for the lifting of the top plate. Guide sliders are respectively hinged to the tops of the first support and the second support. The guide sliders horizontally slide along the bottom surface of the top plate.

[0008] Preferably, the driving member includes a telescopic cylinder provided on the base. The output end of the telescopic cylinder extends to a section of the second support.

[0009] Preferably, a guide chute for the horizontal sliding of the bottom of the second support is opened in the base.

[0010] Preferably, a number of rotating rods are distributed on the outer periphery of the lifting plate, and the number of the rotating rods are rotatably arranged in the table board.

[0011] Preferably, a screwing block for screwing the threaded rod to rotate is provided at the bottom of the threaded rod.

[0012] The advantages and positive effects of the present utility model are as follows: By arranging the base, the support group and the top plate in the table body, a table with a stable structure can be formed. And through the arrangement of the driving member, the initial lifting adjustment of the table body can be achieved by adjusting the shape of the support group. Also, through the arrangement of the lifting member, the purpose of conveniently performing secondary lifting adjustment on the table board subsequently can be achieved, meeting the need for more lifting adjustment space and facilitating the operator to adjust the height. And the whole table body structure is relatively stable, improving the overall practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] Figure 2 is Figure 1 the top view of

[0016] The reference numerals in the drawings are described separately as follows:

[0017] 1. Table body; 11. Base; 111. Guide chute; 12. Support group; 121. First support; 122. Second support; 1221. Guide slider; 13. Top plate; 131. Table board; 1311. Limit rod;

[0018] 2. Driving member; 21. Telescopic cylinder;

[0019] 3. Lifting member; 31. Lifting plate; 32. Rotating rod; 33. Threaded rod; 331. Screwing block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present utility model will now be further described in detail with reference to the drawings. These drawings are all simplified schematic views, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0021] The following further details the embodiments of the present utility model with reference to the drawings:

[0022] Refer to Figure 1 and Figure 2As shown in the figure, the table is a commonly used piece of furniture and is widely used in ordinary families and office areas. At present, people's requirements for tables are also getting higher and higher. They hope to improve portability while retaining the traditional functions of the table. At the same time, most existing lifting tables are rather cumbersome during the lifting process and have poor adjustability in meeting the height requirements of people of different heights. Traditional fixed-height tables have certain limitations in use and cannot meet the usage needs of different people. To solve such problems, a table and chair with a multi-stage lifting mechanism is proposed, including a table body 1. The table body 1 includes a base 11, two support groups 12, and a top plate 13 that are sequentially connected from bottom to top. A driving member 2 for driving the top to move up and down is provided at the bottom of the two support groups 12. A lifting member 3 is provided on the upper side of the top plate 13. The lifting member 3 includes a threaded rod 33 threadedly connected to the inside of the top plate 13. The top of the threaded rod 33 is provided with a lifting plate 31. The lifting plate 31 is circularly arranged, and a tabletop 131 is rotatably provided on one side of the outer periphery of the lifting plate 31. Limiting rods 1311 for rotationally limiting the tabletop 131 are provided on the bottom surfaces at both ends of the tabletop 131. The limiting rods 1311 extend downward into the top plate 13 and are vertically slidably arranged along the top plate 13. Through the arrangement of the base 11, support groups 12, and top plate 13 in the table body 1, a table with a stable structure can be formed. And through the arrangement of the driving member 2, the initial lifting adjustment of the table body 1 can be achieved by adjusting the shape of the support groups 12. Also, through the arrangement of the lifting member 3, the purpose of facilitating subsequent secondary lifting adjustment of the tabletop 131 can be achieved, meeting the need for more lifting adjustment space and facilitating the operator to adjust the height. Moreover, the entire table body 1 structure is relatively stable, improving the overall practicality.

[0023] It should be noted that the specific structure of the support group 12 is as follows: The support group 12 includes a first support 121 and a second support 122 that are cross-rotatably arranged. The bottom of the first support 121 is hinged in the base 11. The bottom of the second support 122 slides horizontally along the length direction of the base 11 for the lifting of the top plate 13. Guide sliders 1221 are respectively hinged to the tops of the first support 121 and the second support 122. The guide sliders 1221 slide horizontally along the bottom surface of the top plate 13. The initial lifting adjustment of the top plate 13 is achieved by driving the bottom of the second support 122 through the operation of the driving member 2, so that the bottom of the second support 122 slides horizontally along the base 11 and continuously approaches the first support 121, thereby achieving the purpose of continuously raising the top plate 13 and thus achieving the purpose of initial lifting.

[0024] Further, the specific structure of the driving member 2 is as follows: The driving member 2 includes a telescopic cylinder 21 disposed on the base 11, and the output end of the telescopic cylinder 21 extends to a section of the second bracket 122; the operation of the telescopic cylinder 21 can cause its output end to expand and contract, thereby achieving the purpose of driving the second bracket 122.

[0025] It should also be noted that the specific connection method between the first bracket 121 and the second bracket 122 in the above bracket group 12 is as follows: Refer to Figure 1 As shown, there is one first bracket 121 and one second bracket 122 in one bracket group 12, and in this embodiment, there are two bracket groups 12. The middle parts of the first bracket 121 and the second bracket 122 are rotatably connected by a rotating shaft, and the bottom of the first bracket 121 is fixedly arranged on the base 11. By horizontally sliding the bottom of the second bracket 122 close to the first bracket 121, the purpose of adjusting the lifting of the overall bracket group 12 is achieved.

[0026] Further, during the initial lifting and lowering adjustment of the first bracket 121 and the second bracket 122, their tops need to slide relative to the top plate 13. To solve such problems, guide sliders 1221 are respectively hinged to the tops of the first bracket 121 and the second bracket 122, and the guide sliders 1221 slide horizontally along the bottom surface of the top plate 13; the setting of the guide sliders 1221 can achieve the purpose of enabling the first bracket 121 and the second bracket 122 to slide along the bottom surface of the top plate 13.

[0027] Additionally, in order to ensure the stable horizontal sliding of the second bracket 122 in the base 11, in this embodiment, a guide chute 111 for the horizontal sliding of the bottom of the second bracket 122 is provided in the base 11; the setting of the guide chute 111 can achieve the purpose of enabling the bottom of the second bracket 122 to slide horizontally along the base 11 in an orderly manner.

[0028] It is worth mentioning that the above secondary lifting is achieved by turning the threaded rod 33. Specifically, after turning the threaded rod 33, at this time, the threaded rod 33 starts to rise relative to the top plate 13, thereby driving the lifting plate 31 to slide upward. In this embodiment, the tabletop 131 and the lifting plate 31 are rotatably connected. That is to say, when the lifting plate 31 rotates with the threaded rod 33, in order to ensure that the tabletop 131 does not rotate with the lifting plate 31, in this embodiment, the setting of the limiting rod 1311 is used to ensure that the circumferential rotation of the tabletop 131 is limited and can only perform vertical lifting, thereby ensuring the stable setting of the entire table body 1.

[0029] Furthermore, a number of rotating rods 32 are distributed on the outer periphery of the lifting plate 31, and the number of the rotating rods 32 are rotatably arranged in the table board 131; the specific arrangement of the rotating rods 32 can ensure the rotational setting mode between the lifting plate 31 and the table board 131.

[0030] It should be noted that, in order to facilitate the operator to turn the threaded rod 33, in this embodiment, a turning block 331 for turning the threaded rod 33 is provided at the bottom of the threaded rod 33; the purpose of facilitating the operator to turn the threaded rod 33 can be achieved through the arrangement of the turning block 331.

[0031] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific embodiments. Any other embodiments obtained by those skilled in the art according to the technical solutions of the present invention also belong to the scope of protection of the present invention.

Claims

1. A table and chair with a multi-stage lifting mechanism, comprising a table body (1), wherein the table body (1) comprises a base (11), two bracket groups (12), and a top plate (13) which are sequentially connected from bottom to top, and characterized in that: A driving member (2) for driving the top to move up and down is provided at the bottom of the two bracket groups (12); a lifting member (3) is provided on the upper side of the top plate (13); the lifting member (3) comprises a threaded rod (33) threadedly connected to the top plate (13); a lifting plate (31) is provided on the top of the threaded rod (33); the lifting plate (31) is arranged in a circular shape, and a table plate (131) is rotatably provided on one side of the outer circumference of the lifting plate (31); limiting rods (1311) for limiting the rotation of the table plate (131) are provided on the bottom surfaces of both ends of the table plate (131); the limiting rods (1311) extend downward into the top plate (13) and are arranged to slide vertically up and down along the top plate (13).

2. A table and chair with a multi-level lifting mechanism according to claim 1, characterized in that: The bracket group (12) comprises a first bracket (121) and a second bracket (122) which are arranged to rotate crosswise, the bottom of the first bracket (121) is hingedly arranged in the base (11), the bottom of the second bracket (122) slides horizontally along the length direction of the base (11) for lifting and lowering the top plate (13), and the tops of the first bracket (121) and the second bracket (122) are respectively hingedly provided with guide slide blocks (1221), and the guide slide blocks (1221) slide horizontally along the bottom surface of the top plate (13).

3. The table and chair with a multi-level lifting mechanism according to claim 2, characterized in that: The driving member (2) comprises a telescopic cylinder (21) arranged on the base (11), and an output end of the telescopic cylinder (21) is extended and arranged on a section of the second bracket (122).

4. The table and chair with a multi-level lifting mechanism according to claim 2, characterized in that: The base (11) is provided with a guide groove (111) for the bottom of the second bracket (122) to slide horizontally.

5. The table and chair with a multi-level lifting mechanism according to claim 1, characterized in that: A plurality of rotating rods (32) are distributed on the outer periphery of the lifting plate (31), and the plurality of rotating rods (32) are rotatably arranged in the table top (131).

6. The table and chair with a multi-level lifting mechanism according to claim 1, characterized in that: A screw block (331) for screwing the threaded rod (33) to rotate is provided at the bottom of the threaded rod (33).

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