CN108968448B

CN108968448B - Desk and chair refitting device

Info

Publication number: CN108968448B
Application number: CN201810933053.7A
Authority: CN
Inventors: 乔思淼
Original assignee: Jiangxi Grade Source Furniture Co ltd
Current assignee: Jiangxi grade source Furniture Co.,Ltd.
Priority date: 2018-08-16
Filing date: 2018-08-16
Publication date: 2021-02-12
Anticipated expiration: 2038-08-16
Also published as: CN108968448A

Abstract

The invention discloses a desk and chair refitting device, which comprises a fixed seat, wherein a clamping device is arranged at the top of the fixed seat, a fixed plate is vertically fixed on the bottom surface of the fixed seat, a rotating plate is fixed at the bottom end of the fixed plate through a rotating device, an extension air bag is fixed on the inner walls of the rotating plate and the fixed plate, an auxiliary air bag is fixed between the extension air bag and the left side wall of the fixed seat, the auxiliary air bag and the extension air bag are mutually communicated through a communicating air hole, and an air blowing device for blowing the extension air bag and the auxiliary air bag is arranged on the side wall of the fixed; the invention can change the chair matched with the common desk into the sofa chair conforming to the human body curve, greatly improves the resting comfort of the common desk chair, has simple disassembly and assembly, convenient adjustment, can be folded and stored, is suitable for various general desk and chairs on the market, has simple structure and low manufacturing cost, and is worthy of popularization.

Description

Desk and chair refitting device

Technical Field

The invention relates to the field of chair accessories, in particular to a device for modifying a desk and a chair.

Background

High school student is in school's learning process, because high school student noon break time is short, a lot of students are difficult to go home and have a rest, the desk chair just becomes one of student's the main instrument of rest, generally because unfavorable phenomena such as ordinary chair is for preventing student's hunchback, general chair back all sets up to straight state, this kind of chair student leans on laminating back and head that can't be fine on the chair, it can be very difficult to lead to leaning on to have a rest on the chair, so most of choices are lain prone and are had a rest on the desk, but lie prone and have a rest on the desk, because the shank is crooked, the arm is being pressed to the head, lead to blood circulation not smooth, appear bad phenomena such as the trick that the trick appears when waking up.

At present, a lot of desk chairs for students capable of being directly changed into deck chairs appear on the market aiming at the problem, but the chair cost is generally higher, common desk and chairs on the market are popularized at present, and the integral replacement cost is higher, so that chairs with the deck chair function cannot be popularized, and therefore, aiming at the problem, the chairs are required to be changed into the chair refitting device with the deck chair function without replacing the desk and chairs in batches, and only the existing desk chairs are required to be refitted.

Disclosure of Invention

The invention aims to provide a desk and chair refitting device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a desk chair repacking device, includes rotor plate, fixed plate, extension gasbag, intercommunication gas pocket, supplementary gasbag, fixing base, the top of fixing base is equipped with clamping device, the bottom surface of fixing base is vertical from this being fixed the fixed plate, the rotor plate is being fixed through rotating device in the bottom of fixed plate, the rotor plate is being fixed with the inner wall of fixed plate and is extending the gasbag, extend and be fixed supplementary gasbag between the left side wall of gasbag and fixing base, supplementary gasbag and extension gasbag communicate through intercommunication gas pocket each other, be equipped with on the lateral wall of fixed plate and carry out the air-blowing device that bloies to extension gasbag and supplementary gasbag.

Further scheme: clamping device includes slip splint and solid fixed splint, gu fixed splint fixes on the left side top surface of fixing base, gu fixed splint's right side is equipped with slip splint, the bottom of slip splint is fixed on the top surface of slider, the slider slip card is established in the anchor clamps spout, the anchor clamps spout is transversely seted up on the top surface of fixing base, it links to each other through the slider spring fixation left of elasticity between the right side wall of slider and anchor clamps spout.

Further scheme: be equipped with supplementary fixed establishment between solid fixed splint and the slip splint, supplementary fixed establishment includes fixed screw, wears to establish screw and fixing bolt, fixed screw wears to establish respectively with wearing to establish the screw and establishes on solid fixed splint and slip splint's top panel, wear to establish between screw and the fixed screw thread fixation fixing bolt.

Further scheme: rotating device is including rotating groove, dwang, rotation mouth and support bearing, the bottom surface of seting up in the rotation groove, the rotation mouth of intercommunication about the inside wall both sides in rotation groove are seted up, rotate the interior fixed support bearing of mouth, rotate between the support bearing and wear to establish and fix the dwang, be fixed the rotor plate on the middle section pole wall of dwang, the both ends of dwang are equipped with the screens device.

Further scheme: the screens device includes screens board, fixture block and fixture block groove, the top vertical fixation of screens board the screens pivot, screens pivot bottom rotates to be fixed on the lateral wall around the fixed plate, the fixture block sliding opening has been seted up on the bottom surface board of screens board, slide in the fixture block sliding opening and wear to establish the fixture block connecting rod, the fixture block is being fixed to the medial extremity of fixture block connecting rod, the stopper is being fixed to the outside end of fixture block connecting rod, the stopper cartridge is at the fixture block inslot, both ends about the dwang are seted up in the fixture block groove.

Further scheme: the clamping block is a rectangular metal block, and the clamping block groove is a rectangular opening groove.

Further scheme: the air blowing device comprises an air inlet hole, an air blowing nozzle, a sealing gasket and a one-way air valve, wherein the one-way air valve is arranged at the central position of the fixing plate in a penetrating mode, the air inlet hole formed in the one-way air valve is communicated with the interior of the extending air bag, the outer side port of the one-way air valve is fixed to the sealing gasket in a circle, the air blowing nozzle is inserted into the sealing gasket in a sealing mode and communicated with the interior of the extending air bag through the one-way air valve and the air inlet hole, and an air release plug is arranged at the bottom.

Further scheme: the length of the rotating plate is smaller than that of the fixing plate.

Compared with the prior art, the invention has the beneficial effects that: the chair is directly clamped on a common desk chair through the clamping device, the chair matched with the common desk can be changed into the sofa chair conforming to the curve of the human body through the plurality of refitting devices, when the chair is used, people can lie on the back for rest, discomfort caused by the chair can not be caused, the comfort level of rest is greatly improved, the chair is simple to disassemble and assemble and convenient to adjust, can be folded and stored, is suitable for various general desk and chairs on the market, has a simple structure and low manufacturing cost, and is worthy of popularization.

Drawings

Fig. 1 is a schematic structural diagram of a desk and chair modifying device.

Fig. 2 is a structural schematic diagram of a left side view of the bottom of a fixing plate in the desk and chair modifying device.

Fig. 3 is a schematic structural view of the desk and chair modifying device mounted on a desk chair.

Fig. 4 is a schematic structural diagram of the desk and chair modifying device when folded and stored.

In the figure: the rotary plate 1, the fixed plate 2, the extension airbag 3, the communicating air hole 30, the air inlet hole 31, the air release plug 32, the auxiliary airbag 4, the fixed seat 5, the fixture sliding groove 50, the sliding block 51, the sliding block spring 52, the sliding clamping plate 53, the fixed clamping plate 54, the fixed screw hole 55, the threaded hole 56, the fixed bolt 57, the air blowing nozzle 6, the sealing gasket 60, the one-way air valve 61, the clamping plate 7, the clamping rotating shaft 70, the clamping block sliding opening 71, the limiting block 72, the clamping block connecting rod 73, the clamping block 74, the rotating groove 8, the rotating rod 80, the rotating opening 81, the supporting bearing 82 and the clamping block groove 83.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 4, in an embodiment of the present invention, a desk and chair modifying device includes a rotating plate 1, a fixing plate 2, an extending airbag 3, a communicating air hole 30, an auxiliary airbag 4, and a fixing seat 5, wherein a clamping device is disposed at a top of the fixing seat 5, the fixing plate 2 is vertically fixed at a bottom surface of the fixing seat 5, the rotating plate 1 is fixed at a bottom end of the fixing plate 2 through the rotating device, the extending airbag 3 is fixed at inner walls of the rotating plate 1 and the fixing plate 2, the auxiliary airbag 4 is fixed between the extending airbag 3 and a left side wall of the fixing seat 5, the auxiliary airbag 4 and the extending airbag 3 are communicated with each other through the communicating air hole 30, and an air blowing device for blowing the extending airbag 3 and the auxiliary airbag 4 is disposed on a side wall of the fixing plate;

the clamping device comprises a sliding clamping plate 53 and a fixed clamping plate 54, the fixed clamping plate 54 is fixed on the top surface of the left side of the fixed seat 5, the sliding clamping plate 53 is arranged on the right side of the fixed clamping plate 54, the bottom of the sliding clamping plate 53 is fixed on the top surface of the sliding block 51, the sliding block 51 is clamped in the clamp sliding groove 50 in a sliding manner, the clamp sliding groove 50 is transversely arranged on the top surface of the fixed seat 5, and the sliding block 51 is fixedly connected with the right side wall of the clamp sliding groove 50 through a sliding block spring 52 at the left side through elasticity;

the rotating device comprises a rotating groove 8, a rotating rod 80, rotating ports 81 and supporting bearings 82, wherein the rotating groove 8 is formed in the bottom surface of the rotating groove 12, the rotating ports 81 which are communicated left and right are formed in two sides of the inner side wall of the rotating groove 8, the supporting bearings 82 are fixed in the rotating ports 81, the rotating rod 80 is rotatably arranged and fixed between the supporting bearings 82 in a penetrating manner, a rotating plate 1 is fixed on the rod wall of the middle section of the rotating rod 80, and clamping devices are arranged at two ends of the rotating rod 80;

the clamping device comprises a clamping plate 7, a clamping block 74 and a clamping block groove 83, wherein the clamping rotating shaft 70 is vertically fixed at the top end of the clamping plate 7, the bottom end of the clamping rotating shaft 70 is rotationally fixed on the front side wall and the rear side wall of the fixing plate 2, a clamping block sliding opening 71 is formed in the bottom end plate of the clamping plate 7, a clamping block connecting rod 73 is slidably arranged in the clamping block sliding opening 71 in a penetrating manner, the clamping block 74 is fixed at the inner side end of the clamping block connecting rod 73, a limiting block 72 is fixed at the outer side end of the clamping block connecting rod 73, the limiting block 72 is inserted in the clamping block groove 83, and the clamping block groove 83 is formed in the left end and the right;

the fixture block 74 is a rectangular metal block, and the fixture block groove 83 is a rectangular opening groove;

the air blowing device comprises an air inlet 31, an air blowing nozzle 6, a sealing gasket 60 and a one-way air valve 61, the one-way air valve 61 is arranged at the center position of the fixing plate 2 in a penetrating mode, the one-way air valve 61 is communicated with the interior of the extension air bag 3 through the air inlet 31 formed in the extension air bag 3, a circle of sealing gasket 60 is fixed at the outer side end opening of the one-way air valve 61, the air blowing nozzle 6 is inserted in the sealing gasket 60 in a sealing mode, the air blowing nozzle 6 is communicated with the interior of the extension air bag 3 through the one-way air valve 61 and the air inlet 31, and an air release plug 32;

the length of the rotating plate 1 is less than that of the fixed plate 2.

The working principle of the invention is as follows: when the multifunctional chair works, the refitting devices can be directly clamped at the backrest, the top of the chair back and the foremost end of the chair surface through the clamping devices on the fixed seat 5, then the rotating plate 1 is rotated according to the body shape of a user, so that the overall curve of the extension air bag 3 is fit with the body shape of a person lying on the chair, then the extension air bag 3 and the auxiliary air bag 4 are inflated through the air blowing nozzle 6, and the extension air bag 3 and the auxiliary air bag 4 are inflated by air, therefore, the multifunctional chair can be changed into a sofa conforming to the curve of the human body through a plurality of refitting devices, when the multifunctional chair is used, the chair matched with a common desk can not generate uncomfortable feeling due to the chair when the person lies on the upper surface for rest, the comfort level of rest is greatly improved, the disassembly and;

when the foldable air bag is not used, the air release plug 32 is directly pulled out, air in the extension air bag 3 and the auxiliary air bag 4 is discharged, then the rotating plate 1 is rotated at one side of the box fixing plate 2, the extension air bag 3 and the auxiliary air bag 4 are accommodated and attached in a direct gap between the rotating plate 1 and the fixing plate 2, the extension air bag 3 and the auxiliary air bag 4 can be quickly folded, the occupied space of a modified device during accommodation is greatly reduced, and the foldable air bag is more convenient to carry;

the auxiliary air bag 4 is arranged to prevent the fixed seat 5 from pressing the body, so that the overall comfort of the device is improved;

wherein the screens device that sets up can carry on spacingly to the turned angle of rotor plate 1, when angle modulation accomplished, directly inserts the fixture block 74 of screens device in the fixture block groove 83 of language dwang 80, and restriction dwang 80 takes place to rotate in turning groove 8, guarantees that rotor plate 1 can not rotate under the health pressure, keeps extending the appearance of gasbag 3 and can not take place deformation.

Example 2

This example differs from example 1 in that:

an auxiliary fixing mechanism is arranged between the fixing clamp plate 54 and the sliding clamp plate 53, the auxiliary fixing mechanism comprises a fixing screw hole 55, a penetrating screw hole 56 and a fixing bolt 57, the fixing screw hole 55 and the penetrating screw hole 56 are respectively arranged on the top panels of the fixing clamp plate 54 and the sliding clamp plate 53 in a penetrating mode, and the fixing bolt 57 is fixed between the penetrating screw hole 56 and the fixing screw hole 55 through threads.

The working principle of the invention is as follows: the auxiliary fixing mechanism can ensure that the sliding clamp plate 53 and the fixed clamp plate 54 are fixed by the acting force of the slider spring 51, and the stability of the clamping device clamped on the chair is ensured by the mode that the sliding clamp plate 53 and the fixed clamp plate 54 are fixed by bolts through the fixing bolts 57.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A desk and chair refitting device comprises a rotating plate (1), a fixed plate (2), an extension air bag (3), a communicating air hole (30), an auxiliary air bag (4) and a fixed seat (5), and is characterized in that a clamping device is arranged at the top of the fixed seat (5), the fixed plate (2) is vertically fixed on the bottom surface of the fixed seat (5), the rotating plate (1) is fixed at the bottom end of the fixed plate (2) through the rotating device, the extension air bag (3) is fixed on the inner walls of the rotating plate (1) and the fixed plate (2), the auxiliary air bag (4) is fixed between the extension air bag (3) and the left side wall of the fixed seat (5), the auxiliary air bag (4) and the extension air bag (3) are mutually communicated through the communicating air hole (30), and an air blowing device for blowing the extension air bag (3) and the auxiliary air bag (4) is arranged on the side wall of the fixed plate, the air blowing device comprises an air inlet hole (31), an air blowing nozzle (6), a sealing gasket (60) and a one-way air valve (61), wherein the one-way air valve (61) is arranged at the central position of the fixing plate (2) in a penetrating way, the one-way air valve (61) is communicated with the interior of the extending air bag (3) through the air inlet hole (31) formed in the extending air bag (3), the outer side port of the one-way air valve (61) is fixed with the sealing gasket (60), the air blowing nozzle (6) is inserted on the sealing gasket (60) in a sealing way, the air blowing nozzle (6) is communicated with the interior of the extending air bag (3) through the one-way air valve (61) and the air inlet hole (31), an air release plug (32) is arranged at the bottom of the left side of the extending air bag (3), the clamping device comprises a sliding clamping plate (53) and a fixing clamping plate, the right side of the fixed clamping plate (54) is provided with a sliding clamping plate (53), the bottom of the sliding clamping plate (53) is fixed on the top surface of the sliding block (51), the sliding block (51) is clamped in the clamp sliding groove (50) in a sliding manner, the clamp sliding groove (50) is transversely arranged on the top surface of the fixed seat (5), the sliding block (51) is fixedly connected with the right side wall of the clamp sliding groove (50) through a sliding block spring (52) with elasticity towards the left, an auxiliary fixing mechanism is arranged between the fixed clamping plate (54) and the sliding clamping plate (53), the auxiliary fixing mechanism comprises a fixed screw hole (55), a penetrating screw hole (56) and a fixed bolt (57), the fixed screw hole (55) and the penetrating screw hole (56) are respectively arranged on the top panels of the fixed clamping plate (54) and the sliding clamping plate (53), and the fixed bolt (57) is fixed by screw threads between the penetrating screw hole (56) and the fixed screw hole (55), the modified device is directly clamped at the backrest of the chair through the clamping device on the fixing seat (5), the top of the chair back and the foremost end of the chair surface, then the rotating plate (1) is rotated according to the body shape of a user, so that the whole curve of the extension air bag (3) is fitted to the body shape of a person lying on the chair, then the extension air bag (3) and the auxiliary air bag (4) are inflated through the blowing nozzle (6), the extension air bag (3) and the auxiliary air bag (4) are inflated, and therefore the common desk-matched chair can be modified into a sofa conforming to the curve of the human body through a plurality of modified devices.

2. The desk chair refitting device of claim 1, wherein the rotating device comprises a rotating groove (8), a rotating rod (80), a rotating port (81) and a supporting bearing (82), the rotating groove (8) is arranged on the bottom surface of the rotating groove (12), the rotating port (81) which is communicated from left to right is arranged on two sides of the inner side wall of the rotating groove (8), the supporting bearing (82) is fixed in the rotating port (81), the rotating rod (80) is fixed in a penetrating way in the rotating direction between the supporting bearing (82), the rotating plate (1) is fixed on the middle rod wall of the rotating rod (80), and clamping devices are arranged at two ends of the rotating rod (80).

3. The desk and chair refitting device of claim 2, wherein the clamping device comprises a clamping plate (7), a clamping block (74) and clamping block grooves (83), the clamping rotating shaft (70) is vertically fixed at the top end of the clamping plate (7), the bottom end of the clamping rotating shaft (70) is rotatably fixed on the front side wall and the rear side wall of the fixing plate (2), a clamping block sliding opening (71) is formed in the bottom end plate of the clamping plate (7), a clamping block connecting rod (73) is slidably arranged in the clamping block sliding opening (71) in a penetrating manner, the clamping block (74) is fixed at the inner side end of the clamping block connecting rod (73), the limiting block (72) is fixed at the outer side end of the clamping block connecting rod (73), the limiting block (72) is inserted in the clamping block grooves (83), and the clamping block grooves (83) are formed at the left end and the right end of the rotating rod (80).

4. The desk and chair retrofit device of claim 3, wherein the latch (74) is a rectangular metal block, and the latch groove (83) is a rectangular open groove.

5. A desk and chair conversion device as claimed in any one of claims 1 to 4, wherein the length of said pivotal plate (1) is less than the length of the fixed plate (2).