Table and chair structure capable of being adjusted in rotating and lifting mode

Abstract

The utility model discloses a table-chair structure capable of being adjusted in a rotating and lifting mode. The table-chair structure comprises a table-chair body and table-chair legs. The table and chair legs are arranged at the bottom of the table and chair body, each table and chair leg comprises an upper fixed section and a lower movable section, each lower movable section is arranged outside the corresponding upper fixed section in a sleeving mode and can be movably arranged in a lifting adjustment mode relative to the corresponding upper fixed section, and a cavity allowing the corresponding upper fixed section to be inserted therein is formed in each lower movable section; a clamping piece is fixed at the bottom end of the upper fixing section, and a clamping part is arranged on the clamping piece; the clamping piece is fixed to the bottom end of the upper fixed section and matched with the lower movable section to rotate back and forth relative to the upper fixed section, the multiple clamping grooves are formed in the cavity, in the lifting adjustment process, only the lower movable section needs to be rotated back and forth and pulled downwards or pushed upwards, operation is extremely simple and labor-saving, hands cannot be clamped, and the lifting adjustment is convenient. And meanwhile, the clamping groove and the clamping piece are not exposed, so that the product is better in aesthetic property and worthy of popularization and application.

Description

Technical Field

[0001] The utility model relates to the field of table and chair technology, in particular to a table and chair structure capable of rotating, lifting and adjusting. Background Art

[0002] Tables and chairs are a general term for tables and chairs. Tables and chairs are essential tools and facilities for humans to maintain normal life, engage in production practices and carry out social activities. Tables and chairs are also constantly developing and innovating with the times. The table has a flat surface, and the table and chair legs are below. The surface is used to place things or for doing things, and the chair is a seat with a backrest. However, the height of the current table and chair furniture structure is mostly fixed. When people of different heights use tables and chairs, it is difficult to adjust the height appropriately according to the height of different people. In addition, during the transportation of tables and chairs, they need to be transported separately, which greatly increases the transportation cost. Therefore, it does not meet the existing needs.

[0003] For this reason, there are also tables and chairs with adjustable legs on the market, which can solve the above problems better. The main structure of the legs of such tables and chairs includes an upper fixed section and a lower movable section. The lower end of the upper fixed section is provided with an elastic clamping protrusion. The lower movable section is sleeved outside the upper fixed section and is movable relative to the upper fixed section so as to be adjustable. The lower movable section has a cavity for the upper fixed section to be inserted. The lower movable section is provided with a plurality of clamping holes arranged at intervals up and down. The elastic clamping protrusion is clamped in the corresponding clamping holes and exposed to the lower movable section. Since the elastic clamping protrusion and the plurality of clamping holes are exposed, the overall appearance of the product is not good, and the elastic clamping protrusion needs to be pressed inwards with force when adjusting the lifting and lowering, which is easy to pinch the hand, and the operation is extremely troublesome and laborious. Therefore, it is necessary to study a solution to solve the above problems. Utility Model Content

[0004] In view of this, the present invention aims to improve the deficiencies of the prior art, and its main purpose is to provide a rotating lifting and adjusting table and chair structure, which can effectively solve the problem that the lifting and adjusting operation of the existing tables and chairs is extremely troublesome and laborious and easy to pinch hands.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A table and chair structure with rotation, lifting and adjustment comprises a table and chair body and table and chair legs; the table and chair legs are arranged at the bottom of the table and chair body, the table and chair legs comprise an upper fixed section and a lower movable section, the lower movable section is sleeved outside the upper fixed section and is movable and can be lifted and lowered relative to the upper fixed section, the lower movable section has a cavity for the upper fixed section to be inserted; a clamping piece is fixed to the bottom end of the upper fixed section, and the clamping piece has a clamping portion; the lower movable section is rotatable back and forth relative to the upper fixed section, a plurality of clamping grooves are arranged in the cavity, the plurality of clamping grooves are spaced apart along the axial direction of the cavity, and the clamping portion is clamped in or out of the corresponding clamping groove as the lower movable section rotates back and forth.

[0007] As a preferred solution, the clamping parts are two radially symmetrically arranged, and correspondingly, the clamping grooves are two rows radially symmetrically arranged, each row of clamping grooves is composed of a plurality of clamping grooves arranged axially at intervals along the cavity, and the two clamping parts are respectively inserted into the corresponding clamping grooves of the two rows of clamping grooves, so that the connection structure between the lower movable section and the upper fixed section is more stable and reliable.

[0008] As a preferred solution, the lower movable section includes an inner rod and an outer rod; the cavity is located on the inner rod, and the outer rod is sleeved outside the inner rod, which has a simple structure and is easy to assemble.

[0009] As a preferred solution, a bottom cover is provided at the lower end of the outer rod, and the bottom cover covers the lower end of the inner rod, which has a beautiful appearance.

[0010] As a preferred solution, a connecting piece is fixed to the lower end of the inner rod, a screw hole is opened on the connecting piece, a stud extends from the bottom cover, and the stud is screwed and fixed to the screw hole, which has a simple structure and is easy to disassemble and assemble.

[0011] As a preferred solution, a fixing hole is provided at the lower end of the inner rod, and a through hole is provided on the connecting piece. A screw passes through the through hole and is screwed and fixed to the fixing hole. The structure is simple and the assembly is convenient.

[0012] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0013] By fixing a clamping piece at the bottom end of the upper fixed section, and cooperating with the lower movable section to be rotatable back and forth relative to the upper fixed section, and a plurality of clamping grooves are arranged in the cavity, when adjusting the lifting and lowering, it is only necessary to rotate the lower movable section back and forth and pull the lower movable section downward or push the lower movable section upward. The operation is extremely simple and labor-saving, and it will not pinch your hands. At the same time, the clamping groove and the clamping piece are not exposed, the product has better aesthetics, and is worthy of popularization and use.

[0014] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of an assembly stereogram of a preferred embodiment of the utility model;

[0016] Figure 2 It is a partial exploded view of a preferred embodiment of the utility model;

[0017] Figure 3 It is a partial cross-sectional view of a preferred embodiment of the utility model;

[0018] Figure 4It is a partial cross-sectional view of another direction of a preferred embodiment of the utility model;

[0019] Figure 5 It is an enlarged schematic diagram of the inner rod in the preferred embodiment of the utility model.

[0020] Description of the accompanying drawings:

[0021] 10. Table and chair body 20. Table and chair legs

[0022] 21. Upper fixed section 211. Positioning groove

[0023] 22. Lower movable section 221. Inner rod

[0024] 222, outer rod 223, bottom cover

[0025] 224, connector 225, screw

[0026] 23. Clamping member 231. Clamping portion

[0027] 201, cavity 202, holding groove

[0028] 203, screw hole 204, stud

[0029] 205. Fixing hole 206. Through hole. DETAILED DESCRIPTION

[0030] Please refer to Figures 1 to 5 As shown, it shows the specific structure of the preferred embodiment of the utility model, including a table and chair body 10 and a table and chair leg 20. The table and chair leg 20 is arranged at the bottom of the table and chair body 10, and the table and chair leg 20 includes an upper fixed section 21 and a lower movable section 22.

[0031] A clamping member 23 is fixed to the bottom end of the upper fixing section 21, and the clamping member 23 has a clamping portion 231. In this embodiment, the clamping portions 231 are two radially symmetrically arranged, and the upper fixing section 21 is a metal round tube structure, and a positioning groove 211 is opened at the bottom end of the upper fixing section 21. The clamping portion 231 is positioned in the positioning groove 211 and passes through the positioning groove 211 to extend outward from the outer side surface of the upper fixing section 21.

[0032] The lower movable section 22 is sleeved outside the upper fixed section 21 and can be adjusted and moved relative to the upper fixed section 21. The lower movable section 22 has a cavity 201 for the upper fixed section 21 to be inserted, and the lower movable section 22 can be rotated back and forth relative to the upper fixed section 21. A plurality of clamping grooves 202 are arranged in the cavity 201 at intervals along the axial direction of the cavity 201. The clamping portion 231 is clamped in or out of the corresponding clamping groove 202 as the lower movable section 22 rotates back and forth. In this embodiment, the clamping grooves 202 are arranged in two rows with radial symmetry, and each row of clamping grooves 202 is composed of a plurality of clamping grooves 202 arranged at intervals along the axial direction of the cavity 201. The two clamping portions 231 are respectively clamped in the corresponding clamping grooves 202 of the two rows of clamping grooves 202, so that the connection structure between the lower movable section 22 and the upper fixed section 21 is more stable and reliable.

[0033] Specifically, the lower movable section 22 includes an inner rod 221 and an outer rod 222; the cavity 201 is located on the inner rod 221, and the outer rod 222 is sleeved outside the inner rod 221, with a simple structure and convenient assembly. In addition, a bottom cover 223 is provided at the lower end of the outer rod 222, and the bottom cover 223 covers the lower end of the inner rod 221, and has a beautiful appearance. In addition, a connecting member 224 is fixed to the lower end of the inner rod 221, and a screw hole 203 is opened on the connecting member 224, and a stud 204 extends from the bottom cover 223, and the stud 204 is screwed and fixed with the screw hole 203, with a simple structure and convenient disassembly and assembly. In addition, a fixing hole 205 is provided at the lower end of the inner rod 221, and a through hole 206 is provided on the connecting piece 224. A screw 225 passes through the through hole 206 and is screwed and fixed to the fixing hole 205. The structure is simple and the assembly is convenient. Moreover, the fixing holes 205 are two radially symmetrically arranged, and correspondingly, there are two through holes 206 and two screws 225.

[0034] The method of using this embodiment is described in detail as follows:

[0035] In the original state, the clamping portion 231 is clamped in one of the clamping grooves 202 , and the upper and lower positions of the lower movable section 22 and the upper fixed section 21 are fixed.

[0036] When the table and chair leg 20 needs to be extended and adjusted, first, the lower movable section 22 is rotated forward to disengage the clamping portion 231 from the clamping slot 202, then, the lower movable section 22 is pulled downward to a suitable position, and then, the lower movable section 22 is rotated reversely to clamp the clamping portion 231 in another clamping slot 202.

[0037] When the chair leg 20 needs to be shortened, first, the lower movable section 22 is rotated forward to disengage the clamping portion 231 from the clamping slot 202, then, the lower movable section 22 is pushed upward to a suitable position, and then, the lower movable section 22 is rotated reversely to clamp the clamping portion 231 in another clamping slot 202.

[0038] The design focus of the utility model is that a clamping piece is fixed at the bottom end of the upper fixed section, and the lower movable section is rotatable back and forth relative to the upper fixed section, and a plurality of clamping grooves are arranged in the cavity. When adjusting the lifting and lowering, it is only necessary to rotate the lower movable section back and forth and pull the lower movable section downward or push the lower movable section upward. The operation is extremely simple and labor-saving, and the hand will not be pinched. At the same time, the clamping groove and the clamping piece are not exposed, the product has better aesthetics, and is worthy of popularization and use.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A rotating lifting and adjusting table and chair structure, comprising a table and chair body and table and chair legs; the table and chair legs are arranged at the bottom of the table and chair body, the table and chair legs include an upper fixed section and a lower movable section, the lower movable section is sleeved outside the upper fixed section and is movable relative to the upper fixed section so as to be adjustable in height, and the lower movable section has a cavity for inserting the upper fixed section; the characteristics are: A clamping piece is fixed at the bottom end of the upper fixed section, and the clamping piece has a clamping portion; the lower movable section is rotatable back and forth relative to the upper fixed section, and a plurality of clamping grooves are arranged in the cavity, and the plurality of clamping grooves are arranged at intervals along the axial direction of the cavity. The clamping portion is clamped in or out of the corresponding clamping groove as the lower movable section rotates back and forth.

2. The rotating lifting and lowering adjustable table and chair structure according to claim 1 is characterized in that: The clamping parts are two radially symmetrically arranged, and correspondingly, the clamping grooves are two rows radially symmetrically arranged, each row of clamping grooves is composed of multiple clamping grooves arranged axially at intervals along the cavity, and the two clamping parts are respectively clamped into the corresponding clamping grooves of the two rows of clamping grooves.

3. The rotating and lifting adjustable table and chair structure according to claim 1 is characterized in that: The lower movable section comprises an inner rod and an outer rod; the cavity is located on the inner rod, and the outer rod is sleeved outside the inner rod.

4. The rotating lifting and lowering adjustable table and chair structure according to claim 3 is characterized in that: The lower end of the outer rod is provided with a bottom cover, and the bottom cover covers the lower end of the inner rod.

5. The rotating lifting and lowering adjustable table and chair structure according to claim 4 is characterized in that: A connecting piece is fixed at the lower end of the inner rod, a screw hole is opened on the connecting piece, a stud extends from the bottom cover, and the stud is screwed and connected to the screw hole for fixing.

6. The rotating lifting and lowering adjustable table and chair structure according to claim 5 is characterized in that: A fixing hole is provided at the lower end of the inner rod, and a through hole is provided on the connecting piece. A screw passes through the through hole and is screwed and connected to the fixing hole for fixing.

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