CN112674522A

CN112674522A - Chair special for painting and calligraphy

Info

Publication number: CN112674522A
Application number: CN202011579579.3A
Authority: CN
Inventors: 郑强胜; 张效铭
Original assignee: Jiaxing Construction Industry School
Current assignee: Jiaxing Construction Industry School
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-04-20

Abstract

The invention discloses a chair special for painting and calligraphy, which comprises a seat plate, wherein supporting legs are fixedly connected at four corners of the lower surface of the seat plate, back rest rods are respectively and fixedly connected to two sides of the rear edge of the upper surface of the seat plate, a back rest strip is connected between the back rest rods, a horizontally arranged anti-falling plate is fixedly connected between the lower ends of the supporting legs at two sides of the rear edge of the seat plate, the lower surface of the anti-falling plate is level with the lower surfaces of the supporting legs, a supporting cross beam is arranged between the back rest rods, two ends of the supporting cross beam are respectively arranged at the upper ends of the back rest rods, and. The chair special for painting and calligraphy can be used as a common chair, can also be used as a waist support in the standing painting and calligraphy process, can effectively relieve waist fatigue in the painting and calligraphy process, and reduces lumbar muscle strain. Is especially suitable for middle-aged and old people to use.

Description

Chair special for painting and calligraphy

Technical Field

The invention belongs to the technical field of chairs, and particularly relates to a chair special for painting and calligraphy.

Background

The chair is common instrument among people's daily life, and people all probably use the chair under different states such as official working, rest, has just so led to the appearance of the chair that has different functions, for example lift chair, the rattan chair of house usefulness commonly used in the office, the folding chair that conveniently carries etc.. Calligraphy and painting are traditional arts in China, have long origins and rich connotations, and are hardworking and bitter skills of the literature from ancient times to present. People generally stand beside a desk to exercise calligraphy and painting, and are convenient to exercise pen holding postures and the like. The painting and calligraphy can be practiced by sitting on a chair beside a desk in order to relieve fatigue, but the painting and calligraphy practicing on the chair has limitation, and the problems that the movement is not unfolded and the like can occur. When the desk stands beside to exercise calligraphy and painting, the trunk part habitually leans forward, the waist is stressed unevenly, and the long-term inclined standing exercise calligraphy and painting is easy to cause diseases such as lumbar muscle strain and the like. Therefore, a device capable of assisting people in painting and calligraphy exercise needs to be designed, and waist stress in the painting and calligraphy process is relieved.

Disclosure of Invention

In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a special chair of painting and calligraphy, includes the seat, and the lower surface four corners fixedly connected with supporting legs of seat, both sides are fixedly connected with back pole respectively behind the upper surface of seat, are connected with the back strip between the back pole, the anti-falling board that the level set up is fixedly connected with between the supporting legs lower extreme of both sides behind the seat, and the lower surface of anti-falling board keeps the same level with the lower surface of supporting legs, be equipped with supporting beam between the back pole, the upper end at the back pole is installed respectively at supporting beam's both ends, installs the back cushion on the supporting beam.

As the optimization of the technical scheme, through holes respectively communicated with the two ends of the back cushion are formed in the back cushion, the supporting cross beam penetrates through the through holes, and the back cushion can rotate around the supporting cross beam.

Preferably, the through hole is internally provided with a torsion spring which is sleeved on the supporting beam, both ends of the torsion spring are respectively provided with a torsion arm, one end of the back cushion is provided with a clamping groove communicated with the through hole, the supporting beam is provided with a slot, the torsion arm at one end of the torsion spring is clamped into the clamping groove, and the torsion arm at the other end of the torsion spring is inserted into the slot.

As the optimization of the technical scheme, the number of the torsion springs is two, the torsion springs are symmetrically arranged, the number of the clamping grooves is two, the two clamping grooves are respectively located at two ends of the headrest, the number of the clamping grooves is two, the two clamping grooves are communicated, the clamping grooves are both long-strip-shaped, and the length directions of the clamping grooves are parallel to the length direction of the supporting beam.

Preferably, the two ends of the back cushion are respectively fixed with an end cover through screws, the end cover is provided with a through hole for the supporting beam to movably pass through, and the end cover covers the clamping groove.

According to the technical scheme, the two ends of the supporting cross beam are detachably connected with the adjusting rods respectively, the back support rods are arranged in a hollow mode, the upper ends of the back support rods are provided with the sockets communicated with the interior of the back support rods, the adjusting rods are inserted into the back support rods through the sockets, the back support rods are provided with a plurality of adjusting holes arranged at uniform intervals from top to bottom, the adjusting holes are communicated with the interior of the back support rods, the limiting rods are inserted into the adjusting holes, the limiting rods are sleeved with springs, one ends of the springs are fixedly connected with the back support rods, the other ends of the springs are fixedly connected with the limiting rods, and the limiting.

Preferably, the lower end of the adjusting rod is sequentially provided with a buffer spring and a movable sleeve with a bottom plate, the buffer spring is located in the movable sleeve, the lower end of the adjusting rod is inserted into the movable sleeve, one end of the buffer spring is fixedly connected with the lower end of the adjusting rod, the other end of the buffer spring is fixedly connected with the bottom plate of the movable sleeve, and the movable sleeve is movably arranged in the backrest rod.

Preferably, the limiting rod is located behind the chair.

Preferably, the headrest has a head rest groove with an arc surface at the front side, a waist rest groove with an arc surface at the back side, and an elastic layer coated on the surface of the headrest.

Preferably, the periphery of the upper surface of the fall-prevention plate is connected with the lower surface of the fall-prevention plate by an inclined surface inclined outwards.

The invention has the beneficial effects that: the chair special for painting and calligraphy can be used as a common chair, can also be used as a waist support in the standing painting and calligraphy process, can effectively relieve waist fatigue in the painting and calligraphy process, and reduces lumbar muscle strain. Is especially suitable for middle-aged and old people to use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the construction of the headrest;

fig. 4 is a schematic cross-sectional view of a headrest.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, a chair special for painting and calligraphy comprises a seat plate 1, wherein four corners of the lower surface of the seat plate 1 are fixedly connected with supporting legs 2, two sides of the rear surface of the upper surface of the seat plate 1 are respectively and fixedly connected with backrest rods 3, a backrest strip 4 is connected between the backrest rods 3, horizontally arranged fall-prevention plates 5 are fixedly connected between the lower ends of the supporting legs 2 at the two sides of the rear surface of the seat plate 1, the lower surfaces of the fall-prevention plates 5 are flush with the lower surfaces of the supporting legs 2, supporting beams 6 are arranged between the backrest rods 3, two ends of the supporting beams 6 are respectively installed at the upper ends of the backrest rods 3, and back rests 7 are installed on the supporting beams. The headrest 7 provides support for the head when used as a chair. When the calligraphy and painting are practised, the practicer stands behind the chair, steps on the anti-falling plate 5, and supports the waist by the back cushion 7 to practise calligraphy and painting. Since the exerciser steps on the falling prevention plate 5, the chair can be kept in a stable state when the waist leans forward after leaning on the back pillow 7. The fall-preventing plate 5 can prevent the chair from falling backward when used as a chair.

Further, the inside through-holes 8 that communicate respectively 7 both ends of back cushion that are equipped with of back cushion 7, supporting beam 6 passes the through-hole, and back cushion 7 can rotate around supporting beam 6. The back cushion 7 can rotate along with the movement of the waist after supporting the waist to be stressed, so that the comfort level of the waist during calligraphy and painting exercises can be further improved.

Further, be equipped with torsion spring 9 in the through-hole 8, torsion spring 9 overlaps on supporting beam 6, and torsion spring 9's both ends are equipped with torque arm 10 respectively, and the one end of back cushion 7 is equipped with the draw-in groove 11 that communicates through-hole 8, is equipped with slot 12 on supporting beam 6, and the torque arm 10 card of torsion spring 9 one end is gone into draw-in groove 11, and the torque arm 10 of the other end inserts in slot 12. Through setting up torsion spring 9, original state can be replied automatically to back pillow 7, and back pillow 7 needs certain atress just can rotate for the action of following the waist that back pillow 7 can be better rotates, further improves the comfort level of waist when painting and calligraphy are practised. Torsion spring 9 can hug closely supporting beam 6 gradually in the back cushion 7 rotation process, and the pivoted strength that needs drive back cushion 7 also increases gradually, holds supporting beam 6 tightly until changeing spring 9, and restriction back cushion 7 further rotates. The inner wall of the through hole 8 can be gradually supported in the reverse rotation process of the back cushion 7, and the effect of limiting the rotation angle of the back cushion 7 is also achieved.

Further, torsion spring 9's quantity is two and the symmetry sets up, and the quantity of draw-in groove 11 is two, and two draw-in grooves 11 are located the both ends of back cushion 7 respectively, and the quantity of slot 12 is two, and two slots 12 communicate, and slot 12 is rectangular shape, and the length direction of slot 12 is on a parallel with the length direction of supporting beam 6. The torsion spring 9 is pulled out of the through hole 8, the torsion arm 10 in the clamping groove 11 is pulled out, and the torsion arm 10 in the slot 12 moves along the length direction of the slot 12. This facilitates the installation and replacement of the torsion spring 9. The total length of the communicated two slots 12 is equal to the length of the through hole 8 or slightly greater than the length of the through hole 8, so that the back cushion 7 can also move on the supporting beam 6 for a certain distance along the length direction of the supporting beam 6, and a calligraphy and painting practicer can manually move the back cushion 7 as required to adjust the back cushion to the optimal position.

Furthermore, end covers 13 are respectively fixed at two ends of the back cushion 7 through screws, through holes 14 for the supporting beams 6 to movably pass through are formed in the end covers 13, and the end covers 13 cover the clamping grooves 11. End cap 13 prevents torque arm 10 from disengaging from slot 11.

Further, both ends of supporting beam 6 are detachably connected with adjusting rod 15 respectively, back pole 3 cavity sets up, and the upper end of back pole 3 is equipped with the inside socket 16 of intercommunication back pole 3, and adjusting rod 15 inserts the inside of back pole 3 through socket 16, is equipped with a plurality of from last even interval on the back pole 3 and sets up regulation hole 17, and regulation hole 17 communicates inside the back pole 3, and regulation hole 17 interpolation has gag lever post 18, and the cover has the spring on gag lever post 18, and the one end fixed connection back pole 3 of spring, other end fixed connection gag lever post 18, and gag lever post 18 keeps the state of stretching into the inside of back pole 3 through the spring. The limit rod 18 extends into the back support rod 3 to limit the position of the adjusting rod 15. The stop rods 18 are pulled out, and the adjusting rod 15 can descend until the next stop rod 18 blocks the adjusting rod. Therefore, the height of the back cushion 7 can be adjusted according to the requirement, and the back cushion is suitable for the use requirements of calligraphy and painting exercisers with different heights.

Furthermore, the lower end of the adjusting rod 15 is sequentially provided with a buffer spring 19 and a movable sleeve 20 with a bottom plate 21, the buffer spring 19 is located in the movable sleeve 20, the lower end of the adjusting rod 15 is inserted into the movable sleeve 20, one end of the buffer spring 19 is fixedly connected with the lower end of the adjusting rod 15, the other end of the buffer spring is fixedly connected with the bottom plate 21 of the movable sleeve 20, and the movable sleeve 20 is movably arranged in the backrest rod 3. The buffer spring 19 makes the headrest 7 generate a certain range of elastic buffer support in the vertical direction after being stressed. Therefore, the back cushion 7 can elastically rotate and also can provide elastic support in the vertical direction, the waist can be always supported and protected, and the comfort level of the back cushion 7 is further improved.

Further, the limiting rod 18 is located at the rear of the chair.

Further, the front side of the back cushion 7 is provided with a head rest groove 22 with an arc surface, the rear side of the back cushion 7 is provided with a waist rest groove 23 with an arc surface, and the surface of the back cushion 7 is coated with an elastic layer. The headrest 7 itself is made of a hard material and the elastic layer may be formed of a leather material such as a sponge.

Furthermore, the periphery of the upper surface of the fall-preventing plate 5 is connected with the lower surface of the fall-preventing plate 5 through an inclined surface 24 which inclines outwards. The inclined surface 24 prevents the fall prevention plate 5 from interfering with the movement of the user beside the chair and prevents the fall prevention plate 5 from catching on a person near the chair.

Having described preferred embodiments of the present invention in detail, it is to be understood that modifications and variations may be resorted to without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a special chair of painting and calligraphy, includes the seat, and the lower surface four corners fixedly connected with supporting legs of seat, both sides fixedly connected with back pole respectively behind the upper surface of seat, are connected with the back strip between the back pole, its characterized in that, fixedly connected with falls the board that prevents that the level set up between the supporting legs lower extreme of both sides behind the seat, the lower surface of preventing falling the board keeps level with the lower surface of supporting legs, be equipped with supporting beam between the back pole, the upper end at the back pole is installed respectively at supporting beam's both ends, installs the back cushion on the supporting beam.

2. The chair special for painting and calligraphy as claimed in claim 1, wherein the inside of the back cushion is provided with through holes respectively communicating with both ends of the back cushion, the supporting beam passes through the through holes, and the back cushion can rotate around the supporting beam.

3. The chair special for painting and calligraphy according to claim 2, wherein the through hole is internally provided with a torsion spring, the torsion spring is sleeved on the supporting beam, both ends of the torsion spring are respectively provided with a torsion arm, one end of the back cushion is provided with a clamping groove communicated with the through hole, the supporting beam is provided with a slot, the torsion arm at one end of the torsion spring is clamped into the clamping groove, and the torsion arm at the other end is inserted into the slot.

4. The chair special for painting and calligraphy as claimed in claim 3, wherein the number of the torsion springs is two, the torsion springs are symmetrically arranged, the number of the clamping grooves is two, the two clamping grooves are respectively positioned at two ends of the back cushion, the number of the slots is two, the two slots are communicated, the slots are both in a long strip shape, and the length direction of the slots is parallel to the length direction of the supporting beam.

5. The chair special for painting and calligraphy as claimed in claim 4, wherein the two ends of the back cushion are respectively fixed with end covers through screws, the end covers are provided with through holes for the supporting beams to movably pass through, and the end covers cover the clamping grooves.

6. The chair special for painting and calligraphy according to claim 5, wherein the supporting beam is detachably connected at both ends thereof with adjusting rods, the back rod is hollow, the upper end of the back rod is provided with a socket communicated with the inside of the back rod, the adjusting rods are inserted into the inside of the back rod through the socket, the back rod is provided with a plurality of adjusting holes which are uniformly spaced from top to bottom, the adjusting holes are communicated with the inside of the back rod, a limiting rod is inserted into the adjusting holes, the limiting rod is sleeved with a spring, one end of the spring is fixedly connected with the back rod, the other end of the spring is fixedly connected with the limiting rod, and the limiting rod is kept in a state of extending into the inside.

7. The chair special for painting and calligraphy as claimed in claim 6, wherein the lower end of the adjusting rod is provided with a buffer spring and a movable sleeve with a bottom plate in sequence, the buffer spring is positioned in the movable sleeve, the lower end of the adjusting rod is inserted into the movable sleeve, one end of the buffer spring is fixedly connected with the lower end of the adjusting rod, the other end of the buffer spring is fixedly connected with the bottom plate of the movable sleeve, and the movable sleeve is movably arranged in the backrest rod.

8. The chair special for painting and calligraphy as claimed in claim 7, wherein the limiting rod is positioned at the rear of the chair.

9. The chair special for painting and calligraphy as claimed in claim 8, wherein the front side of the back cushion is provided with a head rest groove arranged in an arc surface, the rear side of the back cushion is provided with a waist rest groove arranged in an arc surface, and the surface of the back cushion is coated with an elastic layer.

10. The chair special for painting and calligraphy according to claim 1, wherein the periphery of the upper surface of the fall-preventing plate is connected with the lower surface of the fall-preventing plate by an inclined surface inclined outwards.