CN213720915U

CN213720915U - Liftable office chair

Info

Publication number: CN213720915U
Application number: CN202022865872.8U
Authority: CN
Inventors: 黄爱民
Original assignee: Anji Fuheng Furniture Co ltd
Current assignee: Anji Fuheng Furniture Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-20
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses a liftable office chair, which comprises a chair base, the seat support below is provided with lift chair leg, lift chair leg includes the base, sets up in the base top and has the traveller of inner chamber down, run through on the lateral wall of traveller and set up the slide opening with the inner chamber intercommunication, it is provided with the draw runner that both ends stretch out the slide opening to slide in the slide opening, be provided with the lift sleeve of suit on the traveller on the draw runner, the top of lift sleeve sets up on the top surface of seat support, be provided with in the inner chamber of traveller and the base and be used for driving the actuating mechanism that the draw runner slided from top to bottom in the slide opening. The technical scheme has the key points that the lifting chair legs are arranged below the chair seat, so that the problem of poor use comfort caused by high fixation of the chair legs in the prior art is solved.

Description

Liftable office chair

Technical Field

The utility model relates to an office chair technical field, in particular to liftable office chair.

Background

The office chair refers to various chairs which are equipped for working conveniently in daily life and social activities, the office chair in a broad sense comprises all chairs used in offices, such as a executive chair, a middle class chair, a guest chair, a clerk chair, a conference chair, a visitor chair, a training chair and the like, and the office chair in a narrow sense refers to a backrest chair on which a person sits when working on a desktop in a sitting posture.

A prior chinese patent with publication number CN203914093U discloses an office chair, which comprises a seat, a chair back and chair legs, wherein the chair back is disposed at the rear side of the seat, and the chair legs are disposed below the seat. When in use, a user sits on the chair seat and leans against the back of the chair.

The above prior art solutions have the following drawbacks: the body types of different users are different usually, the height of the chair legs is fixed, the use requirements of users with longer legs cannot be met, and the use comfort is not good.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The to-be-solved problem of the utility model is to provide a liftable office chair to the above-mentioned not enough that exists among the prior art, it is through setting up the lift chair leg in seat support below, has solved among the prior art because of the not good problem of use comfort level that the chair leg highly fixed leads to.

(II) technical scheme

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a liftable office chair, includes the seat support, the seat support below is provided with lift chair leg, lift chair leg includes the base, sets up in the base top and has the traveller of inner chamber down, run through on the lateral wall of traveller and set up the slide opening with the inner chamber intercommunication, it is provided with the draw runner that the slide opening is stretched out at both ends to slide in the slide opening, be provided with the lift sleeve of suit on the traveller on the draw runner, the telescopic top of going up and down sets up on the top surface of seat support, be provided with in the inner chamber of traveller and the base and be used for driving the actuating mechanism that the draw runner slided from top to bottom in the slide opening.

The utility model discloses further set up to: the middle part of draw runner is seted up threaded hole, set up the installation cavity in the base, actuating mechanism sets up in the inner chamber and with screw hole threaded connection's screw rod, rotation set up in the installation cavity and with the coaxial driven gear who links to each other of screw rod, rotation set up in the installation cavity and with driven gear engaged with driving gear, set up on the base and be used for driving gear pivoted driving motor.

The utility model discloses further set up to: a clamping groove for embedding a sliding strip is formed in the bottom surface of the lifting sleeve, and the sliding strip is connected with the lifting sleeve through screws.

The utility model discloses further set up to: the outer side wall of the lifting sleeve extends outwards to form an upper flanging, and the upper flanging is connected to the bottom surface of the seat through screws.

The utility model discloses further set up to: and a lower flanging is outwards extended on the outer side wall of the sliding column, and the lower flanging is connected to the top surface of the base through a screw.

(III) advantageous effects

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does: the user operates driving motor drive driving gear corotation or reversal, then driven gear rotates thereupon, and then drive the screw rod corotation or the reversal rather than coaxial linking to each other, because the screw hole and the screw rod threaded connection of draw runner, then the draw runner slides from top to bottom in the slide opening thereupon, so install on the draw runner and suit the lift sleeve outside the traveller carry out corresponding reciprocating thereupon, then install the seat support at lift sleeve top and carry out corresponding reciprocating thereupon, the seat support height of this liftable office chair can be adjusted, and then better adaptation different users' user demand for use.

Drawings

FIG. 1 is a schematic structural diagram of a liftable office chair in the embodiment;

FIG. 2 is a schematic half-sectional view of an embodiment of a liftable office chair;

fig. 3 is a partial exploded view of the lifting legs of the embodiment.

Reference numerals: 1. a chair seat; 2. lifting chair legs; 21. a base; 22. a traveler; 23. a lifting sleeve; 3. a mounting cavity; 4. downward flanging; 5. an inner cavity; 6. a slide hole; 7. a slide bar; 8. a threaded hole; 9. a chute; 10. a card slot; 11. upward flanging; 12. a drive mechanism; 13. a screw; 14. a driving gear; 15. a driven gear; 16. the motor is driven.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the liftable office chair comprises a chair seat 1 and liftable chair legs 2, wherein the liftable chair legs 2 are arranged below the chair seat 1.

As shown in fig. 2 and 3, the lifting chair leg 2 comprises a base 21, a sliding column 22 and a lifting sleeve 23. The base 21 is disc-shaped, and the base 21 is internally provided with a mounting cavity 3. The sliding column 22 is located above the base 21, the sliding column 22 is cylindrical, the sliding column 22 is coaxial with the base 21, a downward flanging 4 extends outwards from the outer side wall of the sliding column 22, the downward flanging 4 is annular, and the downward flanging 4 is connected to the top surface of the base 21 through screws. The spool 22 has a downwardly facing cavity 5, the cavity 5 being a circular hole. The outer side wall of the sliding column 22 is provided with a sliding hole 6 in a penetrating way, and the sliding hole 6 is communicated with the inner cavity 5. A slide bar 7 is arranged in the slide hole 6 in a sliding mode, two ends of the slide bar 7 extend out of the slide hole 6, and a threaded hole 8 is formed in the middle of the slide bar 7.

As shown in fig. 2 and 3, the slide bar 7 is provided with a lifting sleeve 23, the lifting sleeve 23 is sleeved on the slide post 22, the lifting sleeve 23 is cylindrical, the bottom surface of the lifting sleeve 23 is provided with a sliding groove 9, and the slide post 22 is inserted into the sliding groove 9 and forms a sliding fit with the sliding groove 9. The bottom surface of the lifting sleeve 23 is provided with a clamping groove 10, the clamping groove 10 is used for embedding two end parts of the sliding strip 7 extending out of the sliding hole 6, and the sliding strip 7 is connected with the lifting sleeve 23 through screws. The top of the outer side wall of the lifting sleeve 23 extends outwards to form an upper flanging 11, and the upper flanging 11 is connected to the bottom surface of the seat 1 through screws.

As shown in fig. 2 and 3, a driving mechanism 12 is arranged in the installation of the inner cavity 5 of the sliding column 22 and the base 21, the driving mechanism 12 is used for driving the sliding strip 7 to slide up and down along the sliding hole 6 so as to drive the lifting sleeve 23 and the seat 1 to move up and down, and the driving mechanism 12 comprises a screw 13, a driving gear 14, a driven gear 15 and a driving motor 16. The screw 13 is rotatably arranged at the center of the inner cavity 5, the screw 13 is in threaded connection with the threaded hole 8, and the top of the screw 13 extends into the mounting cavity 3 of the base 21. The driven gear 15 is rotatably arranged in the mounting cavity 3 of the base 21 through a rotating shaft, the driven gear 15 is positioned at the center of the base 21, and the driven gear 15 is coaxially connected with the screw 13 through a coupler. The driving gear 14 is rotatably arranged in the mounting cavity 3 of the base 21 through a rotating shaft, the driving gear 14 is meshed with the driven gear 15, the driving gear 14 is used for driving the driven gear 15 to rotate, the rotating shaft of the driving gear 14 extends out of the upper surface of the base 21 and is coaxially connected with an output shaft of the driving motor 16 through a coupler, and the driving motor 16 is used for driving the driving gear 14 to rotate.

The use process of the liftable office chair is as follows: the user operates the driving motor 16 to drive the driving gear 14 to rotate forwards or backwards, then the driven gear 15 rotates therewith, and further drives the screw 13 connected with the slide bar 7 to rotate forwards or backwards, because the threaded hole 8 of the slide bar 7 is in threaded connection with the screw 13, then the slide bar 7 slides up and down in the slide hole 6, so that the lifting sleeve 23 installed on the slide bar 7 and sleeved outside the slide column 22 correspondingly moves up and down, then the seat 1 installed at the top of the lifting sleeve 23 correspondingly moves up and down, the height of the seat 1 of the lifting office chair can be adjusted, and further the use requirements of different users can be better met.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a liftable office chair, includes seat support (1), its characterized in that: seat support (1) below is provided with lift chair leg (2), lift chair leg (2) include base (21), set up in base (21) top and have down traveller (22) of inner chamber (5), run through on the lateral wall of traveller (22) and set up slide opening (6) with inner chamber (5) intercommunication, it is provided with draw runner (7) that both ends stretch out slide opening (6) to slide in slide opening (6), be provided with lifting sleeve (23) of suit on traveller (22) on draw runner (7), the top of lifting sleeve (23) sets up on the top surface of seat support (1), be provided with in inner chamber (5) of traveller (22) and base (21) and be used for driving drive mechanism (12) that slide opening (6) were slided from top to bottom in slide opening (7).

2. A liftable office chair according to claim 1, characterized in that: threaded hole (8) are seted up at the middle part of draw runner (7), seted up installation cavity (3) in base (21), actuating mechanism (12) set up in inner chamber (5) and with screw hole (8) threaded connection's screw rod (13), rotate set up in installation cavity (3) and with screw rod (13) coaxial continuous driven gear (15), rotate set up in installation cavity (3) and with driven gear (15) engaged with driving gear (14), set up on base (21) and be used for driving gear (14) pivoted driving motor (16).

3. A liftable office chair according to claim 1, characterized in that: the bottom surface of the lifting sleeve (23) is provided with a clamping groove (10) for embedding the sliding strip (7), and the sliding strip (7) is in screw connection with the lifting sleeve (23).

4. A liftable office chair according to claim 1, characterized in that: the outer side wall of the lifting sleeve (23) is outwards extended with an upper flanging (11), and the upper flanging (11) is connected to the bottom surface of the seat (1) through screws.

5. A liftable office chair according to claim 1, characterized in that: the outer side wall of the sliding column (22) extends outwards to form a lower flanging (4), and the lower flanging (4) is connected to the top surface of the base (21) through screws.