CN212345932U

CN212345932U - Revolving chair leg

Info

Publication number: CN212345932U
Application number: CN202020438355.XU
Authority: CN
Inventors: 王江林; 陈杰
Original assignee: Anji Hengyi Furniture Co ltd
Current assignee: Anji Hengyi Furniture Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2021-01-15
Anticipated expiration: 2030-03-30

Abstract

The utility model relates to the technical field of swivel chairs and office chairs, in particular to a swivel chair leg, which comprises a sleeve, wherein the sleeve is provided with a sleeve hole, the outer wall surface of the sleeve is fixedly provided with at least three long leg pipes in an outward radiation way, and the bottoms of the long leg pipes, which are far away from one end of the sleeve, are provided with roller mounting holes; the bottom of the section of the long-leg pipe close to the sleeve is provided with a mounting groove, the wall surface of the mounting groove is relatively and fixedly provided with a plurality of groups of fixing strips, and a fixing groove is formed between the adjacent fixing strips on the wall surface of the groove on the same side of the mounting groove; a metal piece is detachably arranged in the sleeve hole; the metal piece comprises a metal pipe, at least three metal strips are fixedly arranged on the outer wall surface of the metal pipe in an outward radiation mode, a plurality of groups of metal clamping blocks are fixedly arranged on the metal strips, the metal clamping blocks are matched with corresponding fixing grooves, metal clamping grooves are formed between adjacent metal clamping blocks on the same side of the metal strip, and the metal clamping grooves are matched with the corresponding fixing strips. The utility model has the characteristics of intensity is higher, be difficult to take place to warp and ann tears the convenience open.

Description

Revolving chair leg

Technical Field

The utility model relates to a swivel chair, official working seat technical field, in particular to swivel chair foot.

Background

The swivel chair is widely accepted and loved by people as a seat widely used in work and life. The swivel chair leg is a common accessory in swivel chairs and office chairs and is used for installing a lifting air rod and supporting the swivel chair.

The utility model discloses a five rounds of swivel chair feet in the utility model patent of publication number "CN 2889012", it is fixed in the outer circumference of sleeve pipe and the five stabilizer blades that outwards extend including the sleeve pipe that has the cover tube hole and evenly distributed, and the front end lower part of stabilizer blade is equipped with the gyro wheel mounting hole, and the cross section of stabilizer blade is the hollow T style of calligraphy in middle part, and the T style of calligraphy structure of stabilizer blade can be circular arc transition structure, also can be sharp small circle corner transition structure. The utility model discloses a five rounds of swivel chair foot material quantity reduces one sixth, bears static pressure and reaches more than 1.136 tons to the requirement of satisfying international (BIFMA) standard has been satisfied. Because the lifting air rod is required to be installed on the sleeve to support and transfer, when a user sits on the cushion of the swivel chair, the pressure which is enough for the swivel chair can be given, the disclosed patent only comprises the sleeve and five support legs on the whole, and when the swivel chair is subjected to the long-term action pressure brought by the user, the deformation is easy to occur.

Therefore, the existing swivel chair leg has the problems of low strength and easy deformation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a revolving chair leg which has higher strength, is not easy to deform and is convenient to mount and dismount, in order to solve the technical problems of the existing revolving chair leg.

The technical scheme of the utility model: a swivel chair leg comprises a sleeve, wherein a sleeve hole is formed in the sleeve, at least three long leg pipes are fixedly arranged on the outer wall surface of the sleeve in a radiating mode outwards, and a roller mounting hole is formed in the bottom of one end, far away from the sleeve, of each long leg pipe; the bottom of the section of the long-leg pipe close to the sleeve is provided with a mounting groove, the wall surface of the mounting groove is relatively and fixedly provided with a plurality of groups of fixing strips, and a fixing groove is formed between the adjacent fixing strips on the wall surface of the groove on the same side of the mounting groove; a metal piece is detachably arranged in the sleeve hole; the metal piece comprises a metal pipe, the metal pipe is sleeved inside the sleeve hole, at least three metal strips are fixedly arranged on the outer wall surface of the metal pipe in a radiating mode, the metal strips are arranged in corresponding mounting grooves, a plurality of groups of metal clamping blocks are fixedly arranged on the metal strips, the metal clamping blocks are matched with the corresponding fixing grooves, metal clamping grooves are formed between adjacent metal clamping blocks on the same side of the metal strips, and the metal clamping grooves are matched with the corresponding fixing strips. The utility model can be disassembled in the sleeve hole to enhance the strength of the integral structure of the sleeve and the long leg tube, the lifting air rod is directly connected in the metal tube of the metal piece, the lifting air rod is not needed to be connected in the sleeve hole, the metal tube is used as a direct connector of the lifting air rod, and the sleeve shares most of pressure, so that the sleeve and the long leg tube are not easy to deform even if the swivel chair receives the long-term action pressure brought by a user; the metal piece, the sleeve and the long foot tube are connected in a clamping way through the fixing strip and metal clamping groove matched structure and the fixing groove and metal clamping block matched structure, no bolt or screw is used, the connection is realized by simply using the interference fit acting force between the metal piece and the sleeve and the long foot tube, and the installation and the disassembly are both convenient; the metal piece is integrally arranged inside the integral structure of the sleeve and the long-leg pipe, the strength of the integral structure of the sleeve and the long-leg pipe is strengthened, and the integral structure of the sleeve and the long-leg pipe is not easy to deform.

Preferably, the hole wall surface of the sleeve hole is provided with a limiting step, and the step surface of the limiting step is abutted against the end surface of the metal pipe. The limiting step is used for limiting the depth of the metal pipe in the sleeve hole, and when the end of the metal pipe abuts against the limiting step, the metal pipe, the sleeve and the long-leg pipe are installed in place.

Preferably, the limiting step is provided with at least one limiting card and/or limiting clamping groove, and the end part of the metal tube is provided with a limiting clamping groove and/or a limiting card matched with the limiting card and/or the limiting clamping groove on the limiting step. The cooperation between spacing card and the spacing draw-in groove for the stability after being connected the installation is better between tubular metal resonator and the sleeve pipe.

Preferably, the metal bar is fixedly provided with a metal rib, and the metal rib is detachably arranged between the fixing bars on the two groove wall surfaces of the mounting groove; the metal clamping blocks in each group of metal clamping blocks are positioned on the two sides of the metal rib on the metal strip. The integral metal structure formed by the metal pipe and the metal strip has high strength originally, and the metal rib is additionally arranged between the metal pipe and the metal strip, so that the integral strength of the metal piece is higher.

Preferably, a positioning column is fixedly arranged on the sleeve between the mounting groove and the sleeve hole, and a positioning groove is arranged on the positioning column; a metal column is fixedly arranged between the metal rib and the metal pipe on the metal strip, a fixing hole is arranged on the metal column, and the fixing hole corresponds to the positioning groove; the positioning groove is connected with the fixing hole through a bolt or a screw. After the metal piece is installed in a matched mode with the overall structure of the sleeve and the long-leg pipe, the positioning groove is opposite to the fixing hole, and if the stability of installation between the metal piece and the overall structure of the sleeve and the long-leg pipe is further guaranteed, the positioning groove and the fixing hole can be fixedly connected together by using a bolt or a screw. The structure is used for the auxiliary cooperation of the buckling detachable connection mode.

The utility model discloses following beneficial effect has:

(1) the strength of the integral structure of the sleeve and the long leg tube is enhanced by detachably arranging the metal piece in the sleeve hole, the lifting air rod is directly connected in the metal tube of the metal piece, the lifting air rod is not required to be connected in the sleeve hole, the metal tube is used as a direct connector of the lifting air rod, and the sleeve is shared by a large part of pressure, so that the sleeve and the long leg tube are not easy to deform even if the swivel chair is subjected to long-term action pressure brought by a user;

(2) the metal piece, the sleeve and the long foot tube are clamped and connected through a structure of the fixing strip matched with the metal clamping groove and a structure of the fixing groove matched with the metal clamping block, bolts or screws are not used, the connection is realized through the interference fit acting force between the metal piece and the sleeve and the long foot tube, and the installation and the disassembly are convenient; the metal piece is integrally arranged inside the integral structure of the sleeve and the long-leg pipe, the strength of the integral structure of the sleeve and the long-leg pipe is strengthened, and the integral structure of the sleeve and the long-leg pipe is not easy to deform.

Drawings

FIG. 1 is a schematic view showing the overall structure of the middle sleeve and the long leg tube after they are connected;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic view of the whole structure of the middle sleeve and the long leg tube after being connected;

FIG. 4 is a third schematic view of the overall structure of the middle sleeve and the long leg tube of the present invention after they are connected;

FIG. 5 is an enlarged view at B in FIG. 4;

fig. 6 is a schematic view of the overall structure of a metal part in the present invention;

fig. 7 is a schematic view of the overall structure of a metal part in the present invention;

fig. 8 is a schematic view of the overall structure of a metal part in the present invention;

fig. 9 is a schematic view of the overall structure of the present invention;

fig. 10 is a schematic view of the overall structure of the present invention.

The labels in the figures are: 100-sleeve, 101-sleeve hole, 102-limit step, 103-limit clamping piece, 104-limit clamping groove, 105-positioning column, 1051-positioning groove, 200-long pin tube, 201-roller mounting hole, 202-mounting groove, 2021-fixing strip, 2022-fixing groove, 300-metal piece, 301-metal tube, 302-metal strip, 3021-metal clamping block, 3022-metal clamping groove, 3023-metal rib, 303-metal column and 3031-fixing hole.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Fig. 9 and 10 show a swivel chair leg, which comprises a sleeve 100 as shown in fig. 1, wherein the sleeve is provided with a sleeve hole 101 as shown in fig. 2, the outer wall surface of the sleeve is fixedly provided with at least three long leg tubes 200 as shown in fig. 3 in a manner of radiating outwards, and the bottoms of the long leg tubes far away from one end of the sleeve are provided with roller mounting holes 201 as shown in fig. 4; the bottom of the long leg pipe close to one section of the sleeve is provided with a mounting groove 202, the wall surface of the mounting groove is relatively and fixedly provided with a plurality of groups of fixing strips 2021 shown in fig. 5, and a fixing groove 2022 is formed between the adjacent fixing strips on the wall surface of the groove on the same side of the mounting groove; a metal piece 300 shown in figures 6 and 7 is detachably arranged in the sleeve hole; the metal piece comprises a metal pipe 301, the metal pipe is sleeved inside the sleeve hole, at least three metal strips 302 shown in fig. 8 are fixedly arranged on the outer wall surface of the metal pipe in a radiating mode, the metal strips are arranged in corresponding mounting grooves, a plurality of groups of metal clamping blocks 3021 are fixedly arranged on the metal strips, the metal clamping blocks are matched with corresponding fixing grooves, metal clamping grooves 3022 are formed between adjacent metal clamping blocks on the same side of the metal strips, and the metal clamping grooves are matched with the corresponding fixing strips.

The hole wall surface of the sleeve hole is provided with a limiting step 102, and the step surface of the limiting step is abutted against the end surface of the metal pipe. The limiting step is provided with at least one limiting clamping piece 103 and/or at least one limiting clamping groove 104, and the end part of the metal tube is provided with the limiting clamping piece and/or the limiting clamping groove matched with the limiting clamping piece and/or the limiting clamping groove on the limiting step. The metal bar is fixedly provided with a metal bar 3023 which is detachably arranged between the fixed bars on the two groove wall surfaces of the mounting groove; the metal clamping blocks in each group of metal clamping blocks are positioned on the two sides of the metal rib on the metal strip. A positioning column 105 is fixedly arranged on the sleeve between the mounting groove and the sleeve hole, and a positioning groove 1051 is arranged on the positioning column; a metal column 303 is fixedly arranged between the metal rib and the metal pipe on the metal strip, and a fixing hole 3031 is arranged on the metal column and corresponds to the positioning groove; the positioning groove is connected with the fixing hole through a bolt or a screw.

The working principle of the utility model is as follows:

sleeve 100 and rectangular pipe 200 are structure as an organic whole, tubular metal resonator 301 aims at sleeve hole 101 and inserts, spacing card 103 is in the same place with spacing draw-in groove 104 cooperation, the metal muscle 3023 inserts between the relative fixed strip 2021 this moment, the cooperation of metal fixture block 3021 inserts in the fixed slot 2022, the fixed strip 2021 also will cooperate and insert in the metal draw-in groove 3022, the metal strip 302 at this moment will be installed in mounting groove 202, just so accomplished metalwork and sleeve pipe, the cooperation installation between the rectangular pipe overall structure, then it is just good to use the mounting strip fixed mounting at the tubular metal resonator with the gas pole of swivel chair. If the firmness of the fit between the metal member and the overall structure of the sleeve and the long-leg tube is further ensured, a bolt or a screw can be selected to connect the fixing hole 3031 and the positioning groove 1051 together, i.e., to reinforce the connection between the metal member and the overall structure of the sleeve and the long-leg tube.

Claims

1. A swivel chair leg is characterized in that: the roller mounting structure comprises a sleeve (100), wherein a sleeve hole (101) is formed in the sleeve, at least three long foot tubes (200) are fixedly arranged on the outer wall surface of the sleeve in a radiating mode outwards, and roller mounting holes (201) are formed in the bottoms of the long foot tubes, which are far away from one end of the sleeve; the bottom of the long-leg pipe close to one end of the sleeve is provided with a mounting groove (202), the wall surface of the mounting groove is fixedly provided with a plurality of groups of fixing strips (2021) relatively, and a fixing groove (2022) is formed between the adjacent fixing strips on the wall surface of the groove on the same side of the mounting groove; a metal piece (300) is detachably arranged in the sleeve hole; the metalwork includes tubular metal resonator (301), the tubular metal resonator is established in the inside of cover tube hole, the external radiation has set firmly three piece at least metal strips (302) on the outer wall of tubular metal resonator, the metal strip sets up in the mounting groove that corresponds, a plurality of groups metal fixture block (3021) have set firmly on the metal strip, the metal fixture block cooperatees with corresponding fixed slot, form metal draw-in groove (3022) between the adjacent metal fixture block with one side on the metal strip, the metal draw-in groove cooperatees with corresponding fixed strip.

2. A swivel chair foot as claimed in claim 1, wherein: and a limiting step (102) is arranged on the wall surface of the hole of the sleeve hole, and the step surface of the limiting step is abutted against the end surface of the metal pipe.

3. A swivel chair foot as claimed in claim 2, wherein: the limiting step is provided with at least one limiting clamping piece (103) and/or at least one limiting clamping groove (104), and the end part of the metal tube is provided with a limiting clamping groove and/or a limiting clamping piece which are matched with the limiting clamping piece and/or the limiting clamping groove on the limiting step.

4. A swivel chair foot as claimed in claim 1, wherein: a metal bar (3023) is fixedly arranged on the metal bar, and the metal bar is detachably arranged between the fixing bars on the two groove wall surfaces of the mounting groove; the metal clamping blocks in each group of metal clamping blocks are positioned on the two sides of the metal rib on the metal strip.

5. A swivel chair foot as claimed in claim 4, wherein: a positioning column (105) is fixedly arranged on the sleeve between the mounting groove and the sleeve hole, and a positioning groove (1051) is arranged on the positioning column; a metal column (303) is fixedly arranged between the metal rib and the metal pipe on the metal strip, a fixing hole (3031) is arranged on the metal column, and the fixing hole corresponds to the positioning groove; the positioning groove is connected with the fixing hole through a bolt or a screw.