CN214179804U

CN214179804U - Sliding regulator for office chair seat

Info

Publication number: CN214179804U
Application number: CN202022591578.2U
Authority: CN
Inventors: 蔡轩进
Original assignee: Zhongshan Songlin Furniture Co ltd
Current assignee: Zhongshan Songlin Furniture Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-09-14
Anticipated expiration: 2030-11-10

Abstract

The utility model provides a sliding adjusting device of an office chair seat, which is a seat frame body comprising a top frame part for setting a seat surface, a plurality of radial parts are arranged in the arc shape from the periphery of the top frame part downwards, a bottom part is connected between the radial parts, two guide grooves which are relatively longitudinally and concavely arranged are arranged on the bottom surface of the bottom part, a rail seat which is provided with two rail parts which can slide on the two guide grooves and can be fixed on a chassis at the upper end of a chair leg is additionally arranged, one side of the rail seat is provided with a continuous positioning tooth part, a positioning element which can be elastically embedded is arranged on the radial part corresponding to the continuous positioning tooth part, the positioning element is pressed or released by a button which is arranged on the radial part and is exposed outside, the positioning element is driven by a linkage element to withdraw from or be embedded into the continuous positioning tooth part, so that the seat frame body can slide and position on the rail seat back and forth, the structure between the seat frame and the rail seat is simplified, and the sliding fit degree can be more accurate, thereby greatly reducing the occurrence of loosening problems.

Description

Sliding regulator for office chair seat

Technical Field

The utility model relates to a sliding adjustment device of an office chair seat, in particular to a guide groove concavely arranged on the outer side surface of the bottom of a seat frame body, a rail part which is fixed with a chassis at the upper end of a chair leg and is in sliding fit with the guide groove, and a positioning device arranged on the seat frame body, wherein the purpose of sliding positioning of the seat frame body is achieved by meshing or retreating a positioning element on the positioning device with a continuous positioning tooth part on the side surface of the rail part of the rail seat.

Background

The seat of the known office chair can be positioned in a front-back sliding manner, and the types of structures are not enumerated, for example, in chinese CN200920003505 patent, the seat comprises a chassis arranged at the upper end of a chair leg, the chassis is connected with a sitting unit in a sliding manner, a sliding groove which can be used for the left side edge and the right side edge of the chassis to be embedded and slid to be guided and slid is arranged at the bottom surface of the sitting unit corresponding to the chassis, a continuous tooth socket is arranged on the chassis, a positioning sheet which is pushed by an elastic element and is provided with a clamping part capable of being meshed in the tooth socket is arranged on the sitting unit corresponding to the continuous tooth socket in a sliding manner, and the positioning sheet is pulled or released by a control wire, so that a clutch effect is generated between the clamping part and the tooth socket; therefore, the rider can simply pull or release the control wire to adjust and position the riding unit forward and backward.

In the above-described method, it is intended to simplify the manufacturing or processing of each component, and to meet the requirements of mass production and reduction of manufacturing cost, but actually, the chute of the seating unit is formed by a stamped sheet metal member, and the sheet metal member is locked to the seating unit, and the side of the chassis is formed by a stamped sheet metal member, and the sliding engagement between the two members is a large clearance due to the sheet metal member, so that the two members have a large feeling of looseness and shaking, and the quality of the product is greatly reduced while the structure is safe and comfortable for the passengers.

SUMMERY OF THE UTILITY MODEL

The sliding structure of the known sitting unit is not comfortable, namely, a rail seat is arranged at the bottom of the sitting frame in a sliding way, the two rail seats are formed by plastic and integrated precise injection molding, two opposite guide grooves are arranged at the bottom of the sitting frame, two rail parts which are in sliding fit with the two guide grooves are arranged on the rail seat fixedly connected with the chassis, the sliding clearance between the two rail parts is greatly reduced, the components are reduced, and meanwhile, the cost of the notice is reduced.

This novel technical scheme who adopts of solving its technical problem is: comprises a seat frame body, two opposite guide grooves are longitudinally and concavely arranged on the outer side surface of the bottom of the seat frame body; two rail parts which can slide on the two guide grooves are arranged on two sides of one rail seat, and a continuous positioning tooth part is arranged on the side surface of one end of one rail part; a positioning device is arranged on the seat frame body, the positioning device comprises a positioning element which is elastically pushed and slid, and one end of the positioning element is provided with a tooth part which can be embedded with or separated from the continuous positioning tooth part.

In the scheme, the front and the back of the bottom of the seat frame body at the corresponding positions of the two guide grooves are provided with long guide holes, and screws penetrate through the long guide holes to lock the two rail parts of the rail seat with a micro clearance.

In the above scheme, rollers sliding on the two guide grooves are arranged on the top surfaces of the two rail parts of the rail seat in a front-back manner.

In the above scheme, an elastic extension spring for pulling the two guide grooves of the seat frame and the two rail parts of the rail seat is respectively accommodated between the two guide grooves of the seat frame and the two rail parts of the rail seat.

In the above scheme, the seat frame comprises a top frame part, wherein a plurality of arc-shaped spoke parts are connected between the top frame part and the bottom of the top frame part, a containing groove for containing the positioning device is concavely arranged on the spoke part corresponding to the continuous positioning tooth part, two ends of the containing groove are respectively provided with a through hole communicated with the inside of the guide groove and a containing hole communicated with the outside, and two sides of the containing groove are provided with sliding guide grooves; the positioning device comprises a tooth part of a positioning element I, wherein the tooth part of the positioning element I extends to the through hole, the positioning element is elastically pushed to enable the tooth part to be elastically embedded into or withdrawn from the continuous positioning tooth part, a button sliding along the containing hole is arranged, two sides in the middle of a linkage element are arranged in the sliding guide groove and can move up and down and swing, and then two ends of the linkage element are respectively connected with the button and the positioning element in a pivoted mode.

Therefore, the guide groove directly formed on the bottom surface of the seat frame body and the rail seat fixed on the chassis and sliding in the guide groove can ensure that the sliding fit structure of the guide groove and the rail seat is more simplified and can be more precisely matched without looseness.

Drawings

Fig. 1 is a bottom exploded perspective view of the present invention.

Fig. 2 is a top perspective exploded view of the present invention.

Fig. 3 is a bottom exploded perspective view of the present invention.

Fig. 4 is a cross-sectional view of the novel positioning device before it is depressed.

Fig. 5 is a cross-sectional view of the positioning device of the present invention after pressing.

Fig. 6 is a schematic view of the novel positioning element being inserted into successive positioning teeth.

Fig. 7 is a schematic view of the positioning element of the present invention being withdrawn from the continuous positioning teeth and the seat frame being slid forward.

Fig. 8 is a schematic view of the tension spring before the seat frame is slid.

Fig. 9 is a schematic view of the extension spring after the seat frame is slid.

Description of reference numerals: 1-a seat frame; 10-long guide holes; 11-a web portion; 12-bottom; 13-a guide groove; 14-a vessel; 15-mouth holding; 16-a slide guide groove; 17-a support column; 18-through opening; 19-a top frame portion; 2-rail seats; 20-a roller; 21-a rail portion; 22-continuous positioning teeth; 3-extension spring; 4-a positioning device; 41-a button; 42-a linkage element; 421-convex pivot part; 43-a positioning element; 431-long containing groove; 432-tooth; 44-a spring; 45-tabletting; 5-screw.

Detailed Description

Referring to fig. 1-3, the present invention comprises a seat frame 1 capable of sliding back and forth longitudinally on a rail base 2 fixed with a chassis, and the seat frame 1 and the rail base 2 are both formed by plastic integrated precision injection molding, the seat frame 1 comprises a top frame portion 19 and a bottom portion 12, and a plurality of arc-shaped spoke portions 11 are arranged between the top frame portion 19 and the bottom portion 12 to connect therebetween, and two opposite guide grooves 13 are longitudinally arranged on the outer side surface of the bottom portion 12, and a front and a back of the top surface of the bottom portion 12 corresponding to each guide groove 13 are respectively provided with a long guide hole 10.

The inner side surface of one of the spoke parts 11 of the seat frame 1 is concavely provided with an accommodating groove 14, the accommodating groove 14 is internally provided with a positioning device 4, two ends of the accommodating groove 14 are respectively provided with a through hole 18 communicated with the corresponding guide groove 13 and an accommodating hole 15 communicated with the outer side, and two sides and the middle part in the accommodating groove 14 are respectively provided with a sliding guide groove 16 and a support column 17.

The two sides of the rail seat 2 are provided with rail parts 21 which are in sliding fit with the two guide grooves 13 of the bottom 12 of the seat frame 1, screws 5 penetrate through the long guide holes 10 on the bottom 12 of the seat frame 1 to lock the rail parts 21 with a slight clearance, and the front and the back of the top surfaces of the two rail parts 21 are respectively provided with a roller 20, so that the rollers 20 are tightly in sliding fit on the guide grooves 13; furthermore, a continuous positioning tooth portion 22 is provided on a side surface of one end of the one rail portion 21 corresponding to the position where the positioning device 4 is installed on the seat frame 1.

The positioning device 4, shown in fig. 4 and fig. 6, includes a button 41 sliding along the receiving opening 15, a positioning element 43 received in the receiving groove 14 and sliding along the receiving groove, a tooth 432 disposed between the positioning element 43 and the guide groove 13 and extending into the through opening 18, a long receiving groove 431 disposed in the middle of the positioning element 43, a spring 44 received between the prop 17 and the long receiving groove 431, the positioning element 43 being pushed by the spring 44, the tooth 432 being elastically inserted into the continuous positioning tooth 22 disposed on the side surface of the rail 21, and a pressing piece 45 secured on the receiving groove 14 to allow the positioning element 43 to be slidably pressed; in addition, two sides of the middle of the linking element 42 are provided with protruding pivot portions 421, so that the protruding pivot portions 421 slide in the sliding guide slot 16, and the linking element 42 can move up and down and swing along the sliding guide slot 16, so that two ends of the linking element 42 are respectively pivotally connected to the adjacent ends of the button 41 and the positioning element 43.

Next, as shown in fig. 8, an extension spring 3 for tightly pulling the guide groove 13 of the seat frame 1 and the rail portion 21 of the rail seat 2 is accommodated between them, and one end of the extension spring 3 is locked to the guide groove 13 and the other end is locked to the rail portion 21.

As shown in fig. 5 and 7, after the rider presses the button 41, the linking element 42 is driven to swing and pull the positioning element 43 to move backward, so that the tooth 432 of the positioning element 43 moves away from the continuous positioning tooth 22 of the rail 21, and the seat frame 1 can slide back and forth along the rail 21; when the seat frame 1 slides to a predetermined position, the occupant releases the pressing of the button 41, and the positioning element 43 is returned by the elastic force of the spring 44 to fit into the continuous positioning teeth 22 again as shown in fig. 4 and 6, thereby positioning the seat frame 1 so that it does not slide any more.

As shown in fig. 8 and 9, the tension spring 3 is provided between the seat frame 1 and the rail 2, so that when the seat frame 1 slides forward and tries to return and retract, the seat frame 1 can be pulled back by the elastic restoring action of the tension spring 3.

Therefore, the seat frame 1 and the rail seat 2 are both integrally and precisely injection-molded by plastic, so that the matching degree between the two can be more closely matched, the occurrence of loosening and shaking between the two is greatly reduced, and the manufacturing and assembling processes of the components are more simplified, and the manufacturing cost is reduced.

Claims

1. A slide adjusting apparatus of an office chair seat, comprising:

the seat frame is provided with two opposite guide grooves which are longitudinally and concavely arranged on the outer side surface of the bottom of the seat frame;

two rail parts capable of sliding on the two guide grooves are arranged on two sides of the rail seat, and a continuous positioning tooth part is arranged on the side surface of one end of one rail part;

a positioning device, which is arranged on the seat frame body and comprises a positioning element which is elastically pushed and slid, and one end of the positioning element is provided with a tooth part which can be embedded with or separated from the continuous positioning tooth part.

2. An office chair seat slide adjusting device as set forth in claim 1, wherein: the front and the back of the top surface of the inner side of the bottom of the seat part frame body at the corresponding position of the two guide grooves are provided with long guide holes, and screws are arranged to penetrate through the long guide holes to lock the two rail parts of the rail seat with a micro clearance.

3. An office chair seat slide adjusting device as set forth in claim 1, wherein: the front and the back of the top surfaces of the two rail parts of the rail seat are provided with rollers which are propped and slid on the two guide grooves.

4. An office chair seat slide adjusting device as set forth in claim 1, wherein: an extension spring is respectively accommodated between the two guide grooves of the seat frame body and the two rail parts of the rail seat, one end of the extension spring is fixedly locked on the guide grooves, and the other end of the extension spring is fixedly locked on the rail parts.

5. An office chair seat slide adjusting device as set forth in claim 1, wherein:

the seat frame comprises a top frame part and the bottom part, the top frame part is connected with the bottom part through a plurality of arc-shaped spoke parts, the inner side surfaces of the spoke parts corresponding to the continuous positioning tooth parts are concavely provided with accommodating grooves capable of accommodating the positioning devices, two ends of each accommodating groove are respectively provided with a through hole communicated with the guide groove and an accommodating opening communicated with the outer side, and two sides in each accommodating groove are provided with sliding guide grooves;

the positioning device comprises a positioning element, a tooth part at one end of the positioning element extends on the through hole, the positioning element is elastically pushed to enable the tooth part to be elastically embedded into or separated from the continuous positioning tooth part, a button sliding along the containing hole and a linkage element are further arranged, two sides in the middle of the linkage element are contained in the sliding guide groove and can move up and down and swing, and two ends of the linkage element are respectively pivoted with the button and the positioning element.