CN211883048U

CN211883048U - Wire-controlled gear adjusting reset mechanism for swivel chair tray

Info

Publication number: CN211883048U
Application number: CN202020140859.3U
Authority: CN
Inventors: 倪永兴
Original assignee: HANGZHOU ZHONGTAI INDUSTRIAL GROUP CO LTD
Current assignee: HANGZHOU ZHONGTAI INDUSTRIAL GROUP CO LTD
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-11-10
Anticipated expiration: 2030-01-21

Abstract

The utility model relates to a swivel chair tray especially relates to a swivel chair tray drive-by-wire gear adjustment canceling release mechanical system. It solves the technical problem that the locking of swivel chair tray wane that prior art exists is comparatively difficult, and the operation is comparatively complicated to the function is comparatively single, installs comparatively inconvenient etc.. The utility model discloses a bottom plate, the wane, the middle seat, be equipped with the gear fixed block on the middle seat, gear fixed block sliding connection has the gear regulating block, the gear regulating block is connected with the gear and acts as go-between, be equipped with adjusting rod between gear fixed block and the gear regulating block, little spring resets, be connected with gear adjusting torsion spring through gear torsional spring fixed screw on the middle seat, gear adjusting torsion spring one end is fixed on the gear regulating block, the other end is connected with the locking plate, open the inner locked groove that has a plurality of insertable locking plates of wane, the cross-under has the torsional spring fixed axle on the wane, be equipped with the.

Description

Wire-controlled gear adjusting reset mechanism for swivel chair tray

Technical Field

The utility model relates to a swivel chair tray especially relates to a swivel chair tray drive-by-wire gear adjustment canceling release mechanical system.

Background

With the development of science and technology and the progress of society, the living level and the office condition of people are continuously improved, and the demand of the swivel chair is increased. The tray of the swivel chair is an important part arranged below the cushion of the swivel chair, and the lifting of the cushion and the inclination angle adjustment of the backrest are all completed by the chassis. At present, the inclination angle of the backrest of a common swivel chair can be adjusted to meet the requirements of different sitting postures of people. The Chinese patent discloses a swivel chair chassis (publication number: CN 201223153Y), which comprises a shell, a cover, a spring, a return force adjusting screw rod and a driving gear, wherein the cover is fixed on the shell, the spring, the return force adjusting screw rod and the driving gear are arranged in the shell, one end of the return force adjusting screw rod is provided with a positioning nut and an adjusting device, the head of a conversion head on the adjusting device is arranged in a pull head of a door stopper arranged on the cover, and the adjusting device is fixed on the shell through a cover plate; the cover is provided with a lifting wire drawing device, and two ends of the lifting wire drawing device are respectively connected with a lifting air rod wire drawing and a pulling head; one end of the door stopper is connected with an inclining pull wire; one end of the pull head is arranged in the hole and is contacted with the head of the pneumatic rod; the adjusting device consists of a body, a positioning nut outer sleeve, a conversion head, a connecting rod and a spring, wherein the positioning nut outer sleeve is arranged in a hole in the body, the conversion head is respectively movably connected with the connecting rod and the body, the hole in the positioning nut outer sleeve is sleeved on a connecting rod column head of the connecting rod, the spring is arranged in a fixed column on the body, and one end of the spring is connected with the connecting rod column head; the outer sleeve covers the upper part of the door stopper and is fixed on the cover. However, the swivel chair tray wane is not easy to lock, complex to operate, single in function and inconvenient to install.

SUMMERY OF THE UTILITY MODEL

The utility model provides a canceling release mechanical system is adjusted to swivel chair tray drive-by-wire gear, it is mainly that the locking of the swivel chair tray wane of solving prior art existence is comparatively difficult, and the operation is comparatively complicated to the function is comparatively single, installs the technical problem of comparatively inconvenient etc..

The above technical problem of the present invention can be solved by the following technical solutions:

the utility model discloses a swivel chair tray drive-by-wire gear adjusting reset mechanism, including bottom plate, wane, middle seat, the bottom plate in the back middle part respectively through first sliding shaft, the middle front portion of second sliding shaft hinge wane, simultaneously first sliding shaft, second sliding shaft still cross-under in the back middle part of middle seat, cross-under has the third sliding shaft between the front portion of middle seat and the front portion of bottom plate, be equipped with the gear fixed block on the middle seat, gear fixed block sliding connection has the gear regulating block, the gear regulating block is connected with the gear stay wire, be equipped with adjusting pull rod, little spring resets between gear fixed block and gear regulating block, be connected with the gear adjusting torsional spring through gear torsional spring fixed screw on the middle seat, gear adjusting torsional spring one end is fixed on the gear regulating block, the other end is connected with the locking plate, the inner of wane is opened has a plurality of locking plate insertable locked grooves, the torsional spring fixed axle, the torsional spring fixing shaft is provided with a torsional spring. The utility model discloses after the pulling gear is acted as go-between, just can make the gear regulating block slide around on the gear fixed block to the driving gear adjusts the torsional spring and moves, and the locked groove on the wane can be deviate from to the locking plate. When the gear pulling wire is loosened, the gear adjusting torsion spring resets to push the locking plate into the locking groove to lock the seesaw.

Preferably, the gear fixing block is provided with a sliding groove, the gear adjusting block is provided with a sliding rail which is connected in the sliding groove in a sliding manner, and the adjusting pull rod is connected in the gear fixing block through the pull rod fixing block. The sliding rail and the sliding groove can ensure that the gear adjusting block can smoothly slide back and forth. The gear pull wire can be threaded in the small reset spring, and a connector at the end of the gear pull wire can be clamped in a hole of the gear fixing block.

Preferably, the middle seat on be equipped with the locking plate seat, open the spacing groove that has the insertable locking plate on the locking plate seat, open at locking plate seat top has spacing hole, spacing downthehole locking plate stopper that is equipped with, locking plate stopper lower extreme is connected on the locking plate, the gear is adjusted the torsional spring and is fixed on the locking plate through gear torsional spring regulating block. The locking plate limiting block can limit in the limiting hole, so that two stations of the locking plate can be guaranteed.

Preferably, the middle base is provided with a lifting stay wire, the lifting stay wire is connected with a lifting adjusting block, the lifting adjusting block is hinged to the lifting adjusting base through a lifting fixing pin, and the lifting adjusting base is fixed to the middle base. The lifting adjusting block can be driven to turn up and down through the lifting stay wire, so that the air valve on the swivel chair tray can be pushed, and the lifting operation is carried out. Lifting mechanisms such as air valves on the swivel chair are in the prior art.

Preferably, the middle seat is fixed with a lifting stay wire fixing buckle, and the lifting stay wire penetrates through a groove of the lifting stay wire fixing buckle. Therefore, the lifting stay wire can be ensured to be stretched at a fixed position.

Preferably, the holes for connecting the first sliding shaft and the second sliding shaft in a penetrating way on the bottom plate, and the holes for connecting the second sliding shaft and the third sliding shaft in a penetrating way on the middle seat are all kidney-shaped holes. The waist-shaped hole can ensure that the wane, the middle seat and the bottom plate can move to a certain degree. Waist-shaped bushings are arranged in the waist-shaped holes, so that the first sliding shaft, the second sliding shaft and the third sliding shaft can be prevented from being abraded when moving.

Preferably, the bottom plate is externally provided with a bottom plate protective sheet, the middle seat is externally provided with a protective cover, and a protective cover blocking sheet is fixed on the protective cover. This ensures that the entire swivel chair tray is protected from external interference.

Therefore, the utility model discloses it is comparatively easy to the locking of wane, can many grades of regulation, and it is comparatively convenient to operate to the function is comparatively diversified, and the installation is comparatively simple.

Drawings

FIG. 1 is a schematic diagram of the explosion structure of the present invention;

FIG. 2 is a schematic structural view of the gear fixing block and the gear adjusting block of the present invention;

FIG. 3 is a schematic structural view of the locking plate of the present invention when it is disengaged;

fig. 4 is a schematic structural diagram of the locking plate of the present invention.

Parts, positions and numbers in the drawings: bottom plate 1, wane 2, middle seat 3, first sliding shaft 4, second sliding shaft 5, third sliding shaft 6, gear fixed block 7, gear regulating block 8, gear stay wire 9, adjusting pull rod 10, little spring 11 that resets, gear torsional spring fixed screw 12, gear regulating torsional spring 13, locking plate 14, locked groove 15, torsional spring fixed axle 16, torsional spring 17, pull rod fixed block 18, locking plate seat 19, spacing groove 20, locking plate stopper 21, gear torsional spring regulating block 22, go up and down to act as go-between 23, go up and down regulating block 24, lift fixed pin 25, lift regulating seat 26, go up and down to act as go-between fixed knot 27, bottom plate protecting piece 28, protecting cover 29, protecting cover separation blade 30.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): the wire control gear adjustment reset mechanism of the swivel chair tray comprises a bottom plate 1, a rocker 2 and a middle seat 3, wherein the rear middle part of the bottom plate 1 is hinged with the middle front part of the rocker through a first sliding shaft 4 and a second sliding shaft 5 respectively, the first sliding shaft 4 and the second sliding shaft 5 are also connected with the rear middle part of the middle seat in a penetrating manner, a third sliding shaft 6 is connected between the front part of the middle seat and the front part of the bottom plate in a penetrating manner, holes for connecting the first sliding shaft and the second sliding shaft in a penetrating manner on the bottom plate, and holes for connecting the second sliding shaft and the third sliding shaft in a penetrating manner on the middle seat are all waist-shaped holes, as shown in figure 1. The bottom plate protective sheet 28 is arranged outside the bottom plate 1, the protective cover 29 is arranged outside the middle seat 3, and a protective cover baffle 30 is fixed on the protective cover. If fig. 2, be equipped with gear fixed block 7 on the midseat, gear fixed block sliding connection has gear regulating block 8, gear regulating block is connected with gear stay wire 9, be equipped with adjusting pull rod 10 between gear fixed block and the gear regulating block, little spring 11 resets, be connected with gear adjusting torsion spring 13 through gear torsion spring fixed screw 12 on the midseat, gear adjusting torsion spring one end is fixed on the gear regulating block, the other end is connected with locking plate 14, open the inner locked groove 15 that has a plurality of insertable locking plates of wane, the cross-under has torsional spring fixed axle 16 on the wane, the last torsional spring 17 that is equipped with of torsional spring fixed axle. A sliding groove is formed in the gear fixing block 7, a sliding rail arranged on the gear adjusting block 8 is connected in the sliding groove in a sliding mode, and the adjusting pull rod 10 is connected in the gear fixing block 7 through a pull rod fixing block 18. Be equipped with locking plate seat 19 on the middle seat, it has the spacing groove 20 that can insert locking plate 14 to open on the locking plate seat, and open at locking plate seat top has spacing hole, and spacing downthehole locking plate stopper 21 that is equipped with, locking plate stopper lower extreme are connected on the locking plate, and gear is adjusted the torsional spring 13 and is fixed on the locking plate through gear torsional spring regulating block 22. Be equipped with the lift 23 of acting as go-between on the middle seat, the lift is acted as go-between and is connected with lift adjusting block 24, and lift adjusting block articulates on lift adjusting seat 26 through lift fixed pin 25, and lift adjusting seat is fixed on the middle seat. The middle seat is fixed with a lifting stay wire fixing buckle 27, and the lifting stay wire 23 is penetrated in a groove of the lifting stay wire fixing buckle.

During the use, as figure 3, pulling gear 9 that acts as go-between, gear regulating block 8 slides on gear fixed block 7, drives gear and adjusts torsional spring 13 work, and gear is adjusted torsional spring drive locking plate 14 and is deviate from keyway 15 of wane 2, and the wane can carry out the regulation of freely inclining and facing upward. After the adjustment is finished, the gear pull wire is loosened, the small reset spring 11 resets the gear adjusting block 8, and the gear adjusting torsion spring 13 drives the locking plate to be inserted into one of the locking grooves 15, as shown in fig. 4, so that the rocker can be locked. After the lifting stay wire 23 is pulled, the lifting stay wire drives the lifting adjusting block 24 to rotate, so that the valve on the swivel chair tray is pushed, and the chair can be lifted.

The above description is only for the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims

1. A wire control gear adjusting reset mechanism of a swivel chair tray comprises a bottom plate (1), a rocker (2) and a middle seat (3), and is characterized in that the middle rear part of the bottom plate (1) is hinged with the middle front part of the rocker through a first sliding shaft (4) and a second sliding shaft (5) respectively, the first sliding shaft (4) and the second sliding shaft (5) are also connected with the middle rear part of the middle seat in a penetrating manner, a third sliding shaft (6) is connected between the front part of the middle seat and the front part of the bottom plate in a penetrating manner, a gear fixing block (7) is arranged on the middle seat, the gear fixing block is connected with a gear adjusting block (8) in a sliding manner, the gear adjusting block is connected with a gear pull wire (9), an adjusting pull rod (10) and a small reset spring (11) are arranged between the gear fixing block and the gear adjusting block, a gear adjusting torsion spring (13) is connected with the middle seat through a gear torsion spring, the other end is connected with a locking plate (14), the inner end of the seesaw is provided with a plurality of locking grooves (15) which can be inserted into the locking plate, a torsion spring fixing shaft (16) is connected on the seesaw in a penetrating way, and a torsion spring (17) is arranged on the torsion spring fixing shaft.

2. The swivel chair tray line control gear adjusting reset mechanism according to claim 1, characterized in that the gear fixing block (7) is provided with a sliding groove, a sliding rail arranged on the gear adjusting block (8) is connected in the sliding groove in a sliding manner, and the adjusting pull rod (10) is connected in the gear fixing block (7) through a pull rod fixing block (18).

3. The swivel chair tray drive-by-wire gear adjustment resetting mechanism according to claim 1 or 2, characterized in that the middle seat (3) is provided with a locking plate seat (19), the locking plate seat is provided with a limiting groove (20) capable of being inserted with a locking plate (14), the top of the locking plate seat is provided with a limiting hole, a locking plate limiting block (21) is arranged in the limiting hole, the lower end of the locking plate limiting block is connected to the locking plate, and the gear adjustment torsion spring (13) is fixed on the locking plate through a gear torsion spring adjusting block (22).

4. The wire control gear shift adjusting and resetting mechanism of the swivel chair tray according to claim 1 or 2, characterized in that the middle seat (3) is provided with a lifting stay wire (23) connected with a lifting adjusting block (24) hinged on a lifting adjusting seat (26) through a lifting fixing pin (25), and the lifting adjusting seat is fixed on the middle seat.

5. The wire-controlled gear adjusting and resetting mechanism of the swivel chair tray according to claim 4, characterized in that a lifting stay wire fixing buckle (27) is fixed on the middle seat (3), and the lifting stay wire (23) is inserted in a groove of the lifting stay wire fixing buckle.

6. The swivel chair tray wire control gear adjustment reset mechanism according to claim 1 or 2, characterized in that the holes of the first sliding shaft (4) and the second sliding shaft (5) are connected on the bottom plate (1) in a penetrating way, and the holes of the second sliding shaft (5) and the third sliding shaft (6) are waist-shaped holes on the middle seat (3) in a penetrating way.

7. The wire control gear shift adjusting and resetting mechanism of the swivel chair tray according to claim 1 or 2, characterized in that a bottom plate protective sheet (28) is arranged outside the bottom plate (1), a protective cover (29) is arranged outside the middle seat (3), and a protective cover blocking sheet (30) is fixed on the protective cover.