CN211882993U

CN211882993U - Adjustable desk and chair

Info

Publication number: CN211882993U
Application number: CN202020184273.7U
Authority: CN
Inventors: 吴新云
Original assignee: Foshan Leadcom Seating Co ltd
Current assignee: Foshan Leadcom Seating Co ltd
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2020-11-10
Anticipated expiration: 2030-02-19

Abstract

The utility model provides a desk chair with adjustable relates to the teaching facility field. The desk and chair comprises a seat board, a chair back, a desk board and a base fixed on the ground; the device also comprises a support column which is obliquely arranged backwards; the base is fixedly arranged at the bottom of the supporting column; the table plate is fixed at the top of the supporting column; the chair back can be slidably arranged on the front side surface of the supporting column and is positioned in front of the table plate; the seat board can be arranged on the front side surface of the supporting column in a sliding mode and is located below the chair back. The utility model discloses the structure is unique and stable, has realized the adjustable function of the back of the chair and bedplate, can carry out the altitude mixture control to bedplate, the back of the chair to the condition that the step height differs in the teaching place to improve and use the travelling comfort.

Description

Adjustable desk and chair

Technical Field

The utility model belongs to the technical field of teaching facility, concretely relates to desk chair with adjustable.

Background

Desk and chair, as the desk, chair that the student used, is used in the school, training institution extensively. With the rapid development of science and technology, various desks and chairs appear in the product market, wherein the desks and chairs are integrated, and the desks and chairs are split; there are a table angle adjustable type, a table storage type, and the like.

In the desk and chair in the prior art, although the desk plate and the seat plate can be folded and stored, the heights of the desk plate and the seat plate are set when leaving a factory and cannot be adjusted. Then, to some teaching places, there is the condition that the step height differs, and the back is installed on the step to the desk chair of integral type because of bedplate, the unable height-adjusting of back of the chair to the height of cooperation table, thereby can't provide more comfortable seat for the student.

It is seen that improvements and enhancements to the prior art are needed.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art, an object of the present invention is to provide a desk and chair with adjustable design is unique, and stable structure can adjust the height of the seat plate and the back of the chair according to the height difference of the steps in the teaching place, so as to improve the comfort of use.

In order to achieve the purpose, the utility model adopts the following technical proposal:

an adjustable desk and chair comprises a seat board, a chair back, a desk board and a base fixed on the ground; the device also comprises a support column which is obliquely arranged backwards; the base is fixedly arranged at the bottom of the supporting column; the table plate is fixed at the top of the supporting column; the chair back can be slidably arranged on the front side surface of the supporting column and is positioned in front of the table plate; the seat board can be arranged on the front side surface of the supporting column in a sliding mode and is located below the chair back.

In the adjustable desk and chair, the support columns and the vertical direction form an included angle of 10 degrees.

In the adjustable desk and chair, the supporting column is provided with a clamping groove positioned at the front side of the supporting column along the length direction of the supporting column; a first sliding block capable of moving along the length direction of the clamping groove and a second sliding block positioned below the first sliding block are respectively arranged in the clamping groove; a fixed seat is arranged at the rear side of the chair back, and is fixedly connected with the chair back and abutted against the front side surface of the support column; the fixed seat is provided with a first screw rod, and the first sliding block is in threaded connection with the first screw rod; the bottom of the seat plate is provided with a support which is connected with the seat plate and is abutted against the front side surface of the support column; the support is provided with a second screw rod, and the second sliding block is in threaded connection with the second screw rod.

In the adjustable desk and chair, the fixed seat is provided with two rows of first through holes suitable for the insertion of the first screw rod, and the fixed seat is provided with two rows of first positioning blocks which are positioned between the two rows of first through holes and can be inserted into the clamping grooves; when the first screw rod is connected with the first sliding block, the first positioning block is connected with the first sliding block; the support is provided with two rows of second through holes suitable for the second screw rod to be inserted, and the support is provided with two rows of second positioning blocks which are positioned between the two rows of second through holes and can be inserted into the clamping grooves; when the second screw rod is connected with the second sliding block, the second positioning block is connected with the second sliding block.

In the adjustable desk and chair, the support columns are made of aluminum alloy materials.

In the adjustable desk and chair, the bottom of the desk plate is provided with a support frame which is connected with the desk plate through bolts; the supporting column is provided with a screw hole groove along the length direction; the support frame is correspondingly provided with a first screw connected with the screw hole groove; and the base is correspondingly provided with a second screw connected with the screw hole groove.

In the adjustable desk and chair, the support column is provided with an inner cavity; the base is provided with a groove suitable for inserting the bottom of the support column, and is provided with an anti-pulling-off device positioned in the groove, and the anti-pulling-off device is inserted into the inner cavity and is abutted against the support column; the pull-off prevention device comprises a first inclined block and a second inclined block; the first inclined block is fixed on the base, and the inclined plane of the first inclined block is in fit connection with the inclined plane of the second inclined block; the second sloping block is in threaded connection with an adjusting screw rod, the base is provided with a waist-shaped hole suitable for inserting the adjusting screw rod, and the length direction of the waist-shaped hole is consistent with the moving direction of the second sloping block.

In the adjustable desk and chair, the cross section of the support column is square.

In the adjustable desk and chair, the chair back is saddle-shaped.

In the adjustable desk and chair, the seat board can be rotatably arranged on the support.

Has the advantages that:

the utility model provides a desk chair with adjustable, the design is unique and stable in structure is reliable, has realized the adjustable function of the back of the chair and bedplate, can carry out height control to bedplate, the back of the chair to the condition that the step height differs in the teaching place to improve and use the travelling comfort.

Drawings

Fig. 1 is a perspective view of an adjustable desk and chair structure provided by the present invention.

Fig. 2 is an explosion diagram of the structure of the adjustable desk and chair provided by the present invention, in which the support, the fixing seat, the supporting frame and the supporting seat are connected.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a perspective view of the fixing base of the adjustable desk and chair provided by the present invention.

Fig. 5 is a perspective view of the adjustable class seat of the present invention.

Fig. 6 is an explosion diagram of the structure of the adjustable desk and chair provided by the present invention, in which the base, the pull-off preventing device and the supporting pillar are connected.

Fig. 7 is a schematic structural view of the base and the pull-off preventing device in the adjustable desk and chair provided by the present invention.

Fig. 8 is a schematic view of the pull-off preventing device in the adjustable desk and chair provided by the present invention.

Fig. 9 is a schematic cross-sectional structure view of the support column in the adjustable desk and chair provided by the present invention.

Detailed Description

The utility model provides a desk chair with adjustable, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the attached drawing and the embodiment of lifting the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 and 2, the present invention provides an adjustable desk and chair, which belongs to an integrated desk and chair type, and comprises a seat plate 1, a chair back 2, a table plate 3, a base 5 fixed on the ground through a ground blasting screw, and a support column 4 arranged obliquely backwards. The base 5 is fixedly arranged at the bottom of the support column 4, and the base 5 is fixedly connected with the support column 4. The table plate 3 is fixed on the top of the supporting column 4. The chair back 2 is slidably arranged on the front side surface of the support column 4 and is positioned in front of the table plate 3; the seat plate 1 is slidably disposed on the front side surface of the support column 4 and below the seat back 2. The heights of the seat plate 1 and the chair back 2 of the desk and chair can be adjusted freely according to the condition of steps in the installation site, so that the desk plate height of the desk and chair in the previous row is matched to provide a comfortable seat.

As shown in fig. 1, 2, 3, and 9, specifically, the supporting column 4 is provided with a clamping groove 41 located at the front side of the supporting column 4 along the length direction thereof; a first sliding block 23 which can move along the length direction of the clamping groove 41 and a second sliding block 13 which is positioned below the first sliding block 23 are respectively arranged in the clamping groove 41. A fixed seat 21 is arranged at the rear side of the chair back 2, the fixed seat 21 is fixedly connected with the chair back 2 through bolts, and the fixed seat 21 is abutted against the front side surface of the support column 4; the fixed seat 21 is provided with a first screw 22, and the first sliding block 23 is in threaded connection with the first screw 22. The bottom of the seat plate 1 is provided with a support 11, the support 11 is connected with the seat plate 1, and the support 11 is abutted against the front side surface of the support column 4; the support 4 is provided with a second screw 12, and the second sliding block 13 is in threaded connection with the second screw 12.

The first slider 23 and the second slider 13 are disposed in the card slot 41 and can move back and forth only along the length direction of the card slot 41. With the help of between first screw rod 22 and the first slider 23, the zonulae occludens between second screw rod 12 and the second slider 13, correspond respectively and fix fixing base 21, support 11 on support column 4 steadily, at this moment, the trailing flank of fixing base 21, the trailing flank of support 11 all contacts with the leading flank of support column 4, and simultaneously, the leading flank of first slider 23 and second slider 13 contacts with the internal face of draw-in groove 41, at the fixing base, between first slider and the support column, the support, great effort has all been produced between second slider and the support column, with this counteract the effort that the human dead weight exerted, thereby guarantee that fixed fixing base 21, support 11 can not appear gliding.

The shape of the catching groove 41 may be T-shaped, cross-shaped, or the like, from the cross-sectional view of the support post 4. The first sliding block 23 and the second sliding block 13 are identical in structure and can be square nuts, and both are provided with screw holes connected with the first screw rod 22 and the second screw rod 12.

Specifically, the support column 4 and the vertical direction form an included angle of 10 degrees, so that the stress is more balanced when the device is used, and the stability is better.

As shown in fig. 2, 4, 5, and 9, specifically, the fixing base 21 is provided with two rows of first through holes suitable for inserting the first screw 22, namely a first through hole 211 and a first through hole 214 located below the first through hole 211, the fixing base 21 is provided with two rows of first positioning blocks located between the two rows of first through holes and capable of being inserted into the card slot 41, namely a first positioning block 212 and a first positioning block 213 located below the first positioning block 212; when the first screw 22 is tightly connected to the first slider 23, the first positioning block 213 and the first positioning block 212 are respectively connected to the first slider 23.

Moreover, the support 11 is provided with two rows of second through holes suitable for inserting the second screw 12, namely a second through hole 111 and a second through hole 114 located below the second through hole 111, and the support 11 is provided with two rows of second positioning blocks located between the two rows of second through holes and capable of being inserted into the card slots 41, namely a second positioning block 112 and a second positioning block 113 located below the second positioning block 112; when the second screw 12 is tightly connected to the second slider 13, the second positioning block 112 and the second positioning block 113 are connected to the second slider 13.

In order to realize simple and quick installation of the fixed seat 21 and the support 11 on the support column 4, a first positioning block and a second positioning block are specially arranged at positions of the fixed seat 21 and the support 11 corresponding to the first through hole and the second through hole respectively. Correspondingly inserting the first positioning block 212 and the first positioning block 213 of the fixing seat 21 into the slot 41, then sliding the first slider 23 into the slot 41 from the top end of the supporting column 4, wherein the first slider 23 slides down and stops on the top surface of the first positioning block 212 due to the obstruction of the first positioning block 212, so that the positioning work of the first slider 23 is realized, and then the first screw 22 penetrates through the first through hole 211 to be in threaded connection with the first slider 23; then, another first slider 23 is slid into the slot 41 from the bottom end of the supporting column 4, and the first positioning block 213 also obstructs the first slider 23, so that the first slider is caused to slide down to the bottom surface of the first positioning block 213, and then the first screw 22 is threaded with the first slider 23 through the first through hole 214.

In the installation, the positioning work of the first sliding block is simply and easily completed, and the troublesome hole aligning operation between the first screw and the first sliding block is not needed. Moreover, the utility model discloses a so novel design, but the installation time that significantly reduces the degree of difficulty.

And the mounting principle of the holder 11 is substantially the same as that of the fixing base 21. According to actual needs, two or more clamping grooves can be arranged on the supporting column 4.

Specifically, the support column 4 is made of an aluminum alloy material and integrally manufactured through an aluminum extrusion molding process, and the aluminum alloy has the advantages of light weight, high strength, good plasticity, good corrosion resistance and easiness in processing, so that the support column can be processed into a support column of a desk and a chair.

As shown in fig. 1, 2, 3, 6, 7 and 9, a support frame 31 bolted to the table 3 is provided at the bottom of the table 3. The supporting column 4 is provided with a screw hole groove 42 along the length direction; the support frame 31 is correspondingly provided with a first screw (not shown in the figure) connected with the screw hole groove 42, and the first screw passes through the connecting hole 311 and is screwed into the screw hole groove 42, so that the support frame 31 is stably fixed at the top end of the support column 4. The base 5 is correspondingly provided with a second screw (not shown in the figure) connected with the screw hole groove 42, and the second screw passes through the connecting hole 53 from the bottom of the base 5 and is screwed into the screw hole groove 42, so that the base 5 is stably fixed at the bottom end of the supporting column 4.

As shown in fig. 6, 7, 8 and 9, more specifically, the supporting column 4 is provided with an inner cavity 43; the base 5 is provided with a groove 51 suitable for inserting the bottom of the support column 4, and is provided with an anti-pulling-off device 6 positioned in the groove 51, wherein the anti-pulling-off device 6 is inserted into the inner cavity 51 and is abutted against the inner wall surface of the support column 4, so that secondary protection and anti-pulling-off effects are achieved.

The pull-off prevention device 6 comprises a first inclined block 61 and a second inclined block 62; the first sloping block 61 is fixed to the base 5, and the first sloping block and the base may be integrally formed. The inclined surface of the first inclined block 61 is in fit connection with the inclined surface of the second inclined block 62, and the second inclined block 62 can move relative to the first inclined block 61 along the inclined contact surface between the first inclined block and the second inclined block. The second inclined block 62 is in threaded connection with an adjusting screw rod (not shown in the figure), the base 5 is provided with a waist-shaped hole 52 suitable for inserting the adjusting screw rod, and the length direction of the waist-shaped hole 52 is consistent with the moving direction of the second inclined block 62.

The adjusting screw rod passes through the waist-shaped hole 52 from the bottom of the base 5 and is connected with a screw hole 621 arranged on the second inclined block 62; after the base 5 is connected with the supporting column 4 through the second screw, the anti-pull-off device 6 located in the inner cavity needs to be operated, the adjusting screw is continuously screwed into the screw hole 621 of the second inclined block 62, the distance between the second inclined block 62 and the bottom surface of the groove 51 is shortened, the second inclined block 62 moves downwards along the inclined surface of the first inclined block 61 in the process, meanwhile, the rear side surface of the second inclined block 62 is gradually close to the wall surface of the inner cavity 43 of the supporting column 4 and is abutted against the wall surface, so that a large acting force is generated between the second inclined block 62 and the supporting column 4, the connection effect between the base 5 and the supporting column 4 is further enhanced, the situation that the supporting column is pulled off due to the risk of loosening of the second screw is avoided, and a secondary protection effect is achieved. The waist-shaped hole 52 is provided to solve the problem that the screw hole 621 moves backwards when the adjusting screw moves downwards.

As shown in fig. 9, specifically, the cross-sectional shape of the support column 4 is a square.

As shown in fig. 1 and 5, the support 11 is formed with a left protective plate 116 and a right protective plate 115 protruding backward at the rear side thereof contacting the support column 4, and the left protective plate 116 and the right protective plate 115 contact the left side and the right side of the support column 4, respectively, so that a large friction force is generated between the left protective plate 116 and the support column 115 and the support column, thereby effectively counteracting the gravity of the human body.

As shown in fig. 1, in particular, the seat back is saddle-shaped, providing comfort and ergonomics to the seat.

As shown in fig. 1 and 2, specifically, the seat board 1 is rotatably disposed on the support 11, the gravity block is disposed at the bottom of the seat board, and the design of folding, accommodating and automatic gravity resetting is adopted, so that the space of a teaching place can be saved, and students can walk conveniently.

To sum up, the utility model provides a desk chair with adjustable, the design is unique and stable in structure is reliable, has realized the adjustable function of the back of the chair and bedplate, can carry out height control to bedplate, the back of the chair to the condition that the step height differs in the teaching place to improve and use the travelling comfort.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims

1. An adjustable desk and chair comprises a seat board, a chair back, a desk board and a base fixed on the ground; the device is characterized by also comprising a support column which is obliquely arranged backwards; the base is fixedly arranged at the bottom of the supporting column; the table plate is fixed at the top of the supporting column; the chair back can be slidably arranged on the front side surface of the supporting column and is positioned in front of the table plate; the seat board can be arranged on the front side surface of the supporting column in a sliding mode and is located below the chair back.

2. An adjustable desk and chair as claimed in claim 1 wherein the support posts are angled at 10 ° to the vertical.

3. The adjustable desk and chair of claim 1 or 2, wherein the support post is provided with a slot along the length direction thereof, the slot being positioned at the front side of the support post; a first sliding block capable of moving along the length direction of the clamping groove and a second sliding block positioned below the first sliding block are respectively arranged in the clamping groove; a fixed seat is arranged at the rear side of the chair back, and is fixedly connected with the chair back and abutted against the front side surface of the support column; the fixed seat is provided with a first screw rod, and the first sliding block is in threaded connection with the first screw rod; the bottom of the seat plate is provided with a support which is connected with the seat plate and is abutted against the front side surface of the support column; the support is provided with a second screw rod, and the second sliding block is in threaded connection with the second screw rod.

4. The adjustable desk and chair according to claim 3, wherein the fixing base is provided with two rows of first through holes into which the first screws are inserted, and the fixing base is provided with two rows of first positioning blocks which are positioned between the two rows of first through holes and into which the clamping grooves are inserted; when the first screw rod is connected with the first sliding block, the first positioning block is connected with the first sliding block; the support is provided with two rows of second through holes suitable for the second screw rod to be inserted, and the support is provided with two rows of second positioning blocks which are positioned between the two rows of second through holes and can be inserted into the clamping grooves; when the second screw rod is connected with the second sliding block, the second positioning block is connected with the second sliding block.

5. The adjustable desk and chair of claim 4 wherein said support posts are made of aluminum alloy.

6. The adjustable desk and chair of claim 3 wherein the bottom of the desk plate is provided with a support frame bolted to the desk plate; the supporting column is provided with a screw hole groove along the length direction; the support frame is correspondingly provided with a first screw connected with the screw hole groove; and the base is correspondingly provided with a second screw connected with the screw hole groove.

7. The adjustable desk and chair of claim 6 wherein said support post defines an interior cavity; the base is provided with a groove suitable for inserting the bottom of the support column, and is provided with an anti-pulling-off device positioned in the groove, and the anti-pulling-off device is inserted into the inner cavity and is abutted against the support column; the pull-off prevention device comprises a first inclined block and a second inclined block; the first inclined block is fixed on the base, and the inclined plane of the first inclined block is in fit connection with the inclined plane of the second inclined block; the second sloping block is in threaded connection with an adjusting screw rod, the base is provided with a waist-shaped hole suitable for inserting the adjusting screw rod, and the length direction of the waist-shaped hole is consistent with the moving direction of the second sloping block.

8. An adjustable desk and chair as claimed in claim 3 wherein the cross-sectional shape of the support post is square.

9. An adjustable desk and chair as claimed in claim 3 wherein said chair back is saddle-shaped.

10. An adjustable desk and chair as claimed in claim 3 wherein said seat plate is rotatably mounted to said support.