CN214386631U

CN214386631U - Desk and chair suitable for students with different heights

Info

Publication number: CN214386631U
Application number: CN202120052843.1U
Authority: CN
Inventors: 向利; 高于峰
Original assignee: Chengdu Shenghong Technology Co ltd
Current assignee: Chengdu Shenghong Technology Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-10-15
Anticipated expiration: 2031-01-08

Abstract

The application relates to a desk and chair suitable for students with different heights, which relates to the field of learning tools and comprises a desk body and a chair, wherein the desk body and the chair are arranged in a separated mode. The table body includes support frame and table, and the support frame includes bottom plate and two spinal branch vaulting poles, and the bottom plate level sets up and is used for contacting with ground, and the bracing piece welding is on the bottom plate and perpendicular with the bottom plate, and the table level sets up the one end of keeping away from the bottom plate at the bracing piece and parallel with the bottom plate, is provided with on arbitrary bracing piece to be used for ordering about the lifting unit that the table riseed to and the gliding spacing portion of restriction table. When the height of the table is adjusted, a user sits on the seat and can sense whether the height of the table is proper or not in real time, and then the height of the table is adjusted through the lifting component, so that the height of the table and chair can be adjusted more conveniently.

Description

Desk and chair suitable for students with different heights

Technical Field

The application relates to the field of learning tools, in particular to a desk and chair suitable for students with different heights.

Background

The desk and chair have important influence on the health of students, and if the desk and chair cannot be increased along with the increase of the height of the students, bad sitting posture is inevitably induced. The correct sitting posture is that the angle between the lower leg and the thigh and the angle between the upper leg and the upper body are respectively 90 degrees, and the incorrect sitting posture can cause diseases such as myopia, abnormal spinal curvature and the like, which is one of the reasons that the myopia rate is high in recent years in China.

An authorized publication No. CN202425877U discloses an adjustable desk and chair, which comprises a desk with adjustable height and a chair with adjustable height; the desk comprises: the table frame, the drawer and the table plate are composed of an upper table frame and a lower table frame, and the upper table frame and the lower table frame are designed to be adjustable and telescopic; the tablet chair includes: a chair frame, a storage rack and a chair which are composed of an upper chair frame and a lower chair frame; the upper chair frame and the lower chair frame are designed to be adjustable and telescopic. The utility model can individually adjust the height of the desk and the height of the chair.

With respect to the related art among the above, there are the following drawbacks: after the height of the table or the chair is adjusted by a user, whether the height is suitable or not can be judged after the user sits down, and if the height is not suitable, the height needs to be adjusted again, so that the operation is complex.

SUMMERY OF THE UTILITY MODEL

In order to make the height of the desk and chair more convenient to adjust, the application provides a desk and chair suitable for students with different heights to use.

The application provides a desk chair suitable for different height students use adopts following technical scheme:

the utility model provides a desk chair suitable for different height students use, includes the table body and seat, the table body includes support frame and table, the support frame includes many with the bracing piece and many with the bottom plate, the bracing piece sets firmly on the bottom plate perpendicularly, the table setting is kept away from bottom plate one side at the bracing piece and is parallel with the bottom plate, the table slides along the length direction of bracing piece and sets up on the bracing piece, be provided with the lifting unit who is used for ordering about the table lift on the support frame.

Through adopting above-mentioned technical scheme, when using the table chair, the user sits back on the seat, and whether the perception table body matches with self, when the table body highly does not match, orders about the table through lifting unit and slides along the length direction of bracing piece, makes the height of table and user to matching, during the adjustment, whether the user can be high suitable of real-time perception table, and it is more convenient to make the regulation table chair height.

Preferably, lifting unit includes gear, rack and is used for ordering about gear revolve's driving source, the rack slides and wears to establish the one end of keeping away from the bottom plate at the bracing piece, the top and the table fixed connection of rack, gear revolve sets up on the bracing piece and the axis of rotation level sets up, gear and rack intermeshing, be provided with on the bracing piece and be used for restricting the gliding spacing portion of rack.

Through adopting above-mentioned technical scheme, when adjusting the table height, order about gear revolve through the driving source, through gear and rack meshing transmission, order about the rack and slide to it slides to drive the table, after the table was adjusted suitable height, slided through spacing restriction rack, thereby highly fixed with the table.

Preferably, the driving source includes ratchet, pawl and actuating lever, the ratchet is coaxial to set firmly in one side of gear, the actuating lever rotates to set up on the bracing piece and rotation axis and gear axis collineation, the pawl rotates and sets up the one side that is close to the ratchet at the actuating lever, ratchet and pawl intermeshing, be provided with the first elastic component that is used for ordering about pawl and ratchet meshing on the actuating lever.

Through adopting above-mentioned technical scheme, rotate the actuating lever, the actuating lever drives pawl downstream, and first elastic component orders about pawl and ratchet meshing to drive the ratchet and rotate, and then drive gear revolve. Then, the driving rod is driven to reset, the ratchet wheel drives the pawl to rotate, when the pawl resets, the pawl is driven by the first elastic piece to be meshed with the ratchet wheel again, the table board can be driven to ascend by repeating the operation, and the height of the table and the chair can be adjusted more conveniently.

Preferably, the support rod is provided with a second elastic member for driving the drive rod to rotate upwards.

Through adopting above-mentioned technical scheme, when the actuating lever resets, the actuating lever automatic re-setting is ordered about to the second elastic component behind the release actuating lever, need not manual operation, and the process that makes the rising table is more convenient.

Preferably, the driving rod is hinged to the end, away from the ratchet wheel, of the driving rod, and the driving rod is provided with an abutting block for limiting rotation of the pedal.

Through adopting above-mentioned technical scheme, when rotating the actuating lever, rotate the footboard to contact with the butt piece, can order about the actuating lever through stepping on the footboard and rotate, make the operation more laborsaving.

Preferably, the driving rod is provided with a third elastic member for driving the pedal to rotate upwards.

Through adopting above-mentioned technical scheme, step on the footboard with the foot during use, drive the actuating lever, put aside the foot after using up, and the third elastic component orders about the automatic upwards rotation of footboard, packs up the footboard, avoids the footboard to cause the hindrance to the user.

Preferably, the limiting part comprises a clamping block, the supporting rod is provided with a mounting hole communicated with the inner wall, the clamping block is slidably arranged in the mounting hole in a penetrating mode, and a plurality of clamping grooves for clamping the clamping block are formed in the side wall of the rack along the length direction of the rack at intervals.

Through adopting above-mentioned technical scheme, extract the fixture block when adjusting the table height, then rise the table, can restrict the rack and slide in the card goes into the corresponding draw-in groove with the fixture block card after the adjustment is accomplished to it is fixed with the table, stability when improving the table and using, when ordering about the table and descend, extract the fixture block and can slide the rack downwards, thereby descend the table, make operation process more convenient.

Preferably, one end of the fixture block, which is close to the rack, is provided with an inclined plane facing the rack, the inclined plane of the fixture block faces downward, and the support rod is provided with a fourth elastic element used for driving the fixture block to slide towards one side close to the rack.

Through adopting above-mentioned technical scheme, when the rack upwards slided, the fixture block was ordered about in the inclined plane contact of rack and fixture block outwards slided, and when the ratch stopped to slide, the fourth elastic component ordered about the fixture block automatic with the draw-in groove joint that corresponds, need not operating personnel manual operation, make the process of fixed table height more convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

an operator sits on the chair and can drive the driving rod to rotate by stepping on the pedal, so that the table plate is driven to rise through ratchet wheel and pawl transmission and rack-and-pinion transmission, a user can sense whether the height of the table plate is proper or not in real time, and the height of the table and the chair can be adjusted more conveniently;

after the table plate is adjusted to a proper position, the third elastic piece drives the pedal to automatically rotate upwards, the pedal is folded, and the pedal is prevented from blocking a user;

when the table plate rises, the rack is in contact with the inclined plane of the clamping block, the clamping block is ordered to slide outwards, when the rack stops sliding, the fourth elastic piece orders the clamping block to be automatically clamped with the corresponding clamping groove, manual operation of an operator is not needed, and the process of fixing the height of the table plate is more convenient.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic partial cross-sectional view of a table body according to an embodiment of the application.

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

Fig. 4 is a partially enlarged schematic view of a portion B in fig. 2.

Description of reference numerals: 1. a table body; 2. a support frame; 21. a base plate; 22. a support bar; 23. a guide bar; 24. mounting a box; 3. a table plate; 4. a lifting assembly; 41. a gear; 42. a rack; 43. a drive source; 431. a drive rod; 4311. A second elastic member; 4312. a pedal; 4313. a third elastic member; 4314. a butting block; 432. a ratchet wheel; 433. a pawl; 434. a first elastic member; 5. a limiting part; 51. a clamping block; 52. mounting holes; 53. a fourth elastic member; 54. a card slot; 6. a chair.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a desk and chair suitable for students with different heights. Referring to fig. 1 and 2, the desk and chair suitable for students with different heights comprises a desk body 1 and a chair 6, wherein the desk body 1 and the chair 6 are arranged in a separated mode. The table body 1 includes support frame 2 and table 3, and support frame 2 includes bottom plate 21 and two spinal branch vaulting poles 22, and bottom plate 21 level sets up and is used for contacting with ground, and the bracing piece 22 welds on bottom plate 21 and perpendicular with bottom plate 21, and the one end of bottom plate 21 is kept away from at bracing piece 22 to the level setting of table 3 is just parallel with bottom plate 21, is provided with on arbitrary bracing piece 22 to be the same as ordering about the lifting unit 4 that table 3 riseed to and the gliding spacing portion 5 of restriction table 3. When the height of the table plate 3 is adjusted, a user sits on the seat 6 and can sense whether the height of the table plate 3 is proper or not in real time, and then the height of the table plate 3 is adjusted through the lifting component 4, so that the height of the table and the chair can be adjusted more conveniently.

Referring to fig. 2 and 3, the driving assembly includes a gear 41, a rack 42, and a driving source 43 for driving the gear 41 to rotate. The support rods 22 are arranged in a hollow mode, the top of each support rod 22 is provided with an opening communicated with the inside, the rack 42 penetrates through any one support rod 22 in a sliding mode, and the guide rod 23 penetrates through the other support rod in a sliding mode. The supporting rod 22 with the rack 42 in a penetrating mode is welded with the mounting box 24, the mounting box 24 is communicated with the inside of the supporting rod 22, the gear 41 is rotatably arranged in the mounting box 24, the rotating shaft is perpendicular to the length direction of the supporting rod 22, and the gear 41 is meshed with the rack 42.

Referring to fig. 2 and 3, the driving source 43 includes a ratchet 432, a pawl 433, and a drive lever 431. The ratchet wheel 432 is coaxially welded on the side wall of the gear 41, the tooth tip of the ratchet wheel 432 faces the transmission direction of the gear 41 when the rack 42 is lifted, the driving rod 431 is rotatably arranged in the mounting box 24, the rotating axis of the driving rod is collinear with the axis of the gear 41, a movable hole is formed in the side wall of one side of the mounting box 24, which is far away from the supporting rod 22, in the vertical direction, and one end of the driving rod 431 extends out of the mounting box 24 from the movable hole. The pawl 433 is rotatably disposed on a side wall of the driving rod 431 near the ratchet and engaged with the ratchet 432, a first elastic member 434 for driving the pawl 433 to engage with the ratchet 432 is disposed on the driving rod 431, a third elastic member 4313 for driving the pedal 4312 to rotate upward is disposed on the driving rod 431, and in this embodiment, the first elastic member 434 and the third elastic member 4313 are both torsion springs. One end of the first elastic member 434 is welded to the driving rod 431, and the other end is welded to the pawl 433; one end of the third elastic member 4313 is welded to the inner wall of the mounting case 24, and the other end is welded to the driving rod 431.

Referring to fig. 2 and 3, an end of the driving rod 431, which is away from the ratchet 432, is hingedly provided with a pedal 4312, an abutting block 4314 for limiting rotation of the pedal 4312 is welded to an end of the driving rod 431, which is close to the pedal 4312, and when the pedal 4312 rotates to contact with the abutting block 4314, a top surface of the pedal 4312 is parallel to a length direction of the driving rod 431. The driving rod 431 is provided with a second elastic member 4311 (not shown) for driving the pedal 4312 to rotate upward, in this embodiment, the second elastic member 4311 is a torsion spring, one end of the second elastic member 4311 is welded to the driving rod 431, and the other end is welded to the pedal 4312.

Referring to fig. 2 and 4, the stopper portion 5 includes a latch 51 and a fourth elastic member 53. The side wall of the support rod 22 far away from the mounting box 24 is provided with a mounting hole 52 communicated with the inside of the support rod 22 along the thickness direction of the side wall of the support rod 22, the fixture block 51 is slidably arranged in the mounting hole 52 along the horizontal direction, and the side wall of the rack 42 is provided with a row of clamping grooves 54 at even intervals along the length direction. The latch 51 is provided with a slope on a side close to the rack 42, and the slope faces downward toward the side close to the rack 42. In this embodiment, the fourth elastic element 53 is a tension spring, one end of the fourth elastic element 53 is welded to the outer wall of the support rod 22, and the other end of the fourth elastic element 53 is welded to the latch 51, so as to drive the latch 51 to be clamped to the slot 54.

The implementation principle of the desk and chair suitable for students with different heights is as follows: when the desk and chair is used, a user sits on the seat 6 to sense whether the height of the desk plate 3 is proper or not, when the desk plate 3 is high, the clamping block 51 is pulled out outwards, the desk plate 3 can descend, and then the fourth elastic piece 53 of the clamping block 51 is sent out to drive the clamping block 51 to be clamped with the clamping groove 54 to limit the sliding of the desk plate 3. When the table plate 3 is lower, the pedal 4312 is stepped by a foot to drive the driving rod 431, the driving rod 431 drives the pawl 433 to move downwards, the first elastic member 434 drives the pawl 433 to be meshed with the ratchet 432, so as to drive the ratchet 432 to rotate, further drive the gear 41 to rotate, and drive the rack 42 to slide through the meshing transmission of the gear 41 and the rack 42, so as to drive the table plate 3 to ascend, and when the rack 42 slides upwards, the rack 42 contacts with the inclined surface of the fixture block 51, so as to drive the fixture block 51 to slide outwards. After the driving rod 431 is loosened, the second elastic piece 4311 drives the driving rod 431 to automatically reset, the operation is repeated, the pedal 4312 is repeatedly stepped to drive the table plate 3 to ascend, when the toothed bar stops sliding, the fourth elastic piece 53 drives the fixture block 51 to be automatically clamped with the corresponding fixture groove 54, the table plate 3 is limited to descend, and the height of the table and the chair can be adjusted more conveniently.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a desk chair suitable for different height students use, includes the table body (1) and seat (6), its characterized in that: the table body (1) includes support frame (2) and table (3), support frame (2) including many with bracing piece (22) and many with bottom plate (21), bracing piece (22) set firmly on bottom plate (21), table (3) set up and keep away from bottom plate (21) one side and parallel with bottom plate (21) in bracing piece (22), table (3) slide along the length direction of bracing piece (22) and set up on bracing piece (22), be provided with lifting unit (4) that are used for ordering about table (3) and go up and down on support frame (2).

2. The desk and chair suitable for students with different heights as claimed in claim 1, wherein: lifting unit (4) include gear (41), rack (42) and be used for driving gear (41) pivoted driving source (43), rack (42) slide and wear to establish the one end of keeping away from bottom plate (21) in bracing piece (22), the top and table (3) fixed connection of rack (42), gear (41) rotate to set up on bracing piece (22) and the axis of rotation level sets up, gear (41) and rack (42) intermeshing, be provided with on bracing piece (22) and be used for restricting gliding spacing portion (5) of rack (42).

3. The desk and chair suitable for students with different heights as claimed in claim 2, wherein: the driving source (43) comprises a ratchet wheel (432), a pawl (433) and a driving rod (431), wherein the ratchet wheel (432) is coaxially and fixedly arranged on one side of a gear (41), the driving rod (431) is rotatably arranged on a supporting rod (22) and the axis of rotation of the driving rod is collinear with the axis of the gear (41), the pawl (433) is rotatably arranged on one side, close to the ratchet wheel (432), of the driving rod (431), the ratchet wheel (432) is meshed with the pawl (433), and a first elastic piece (434) used for driving the pawl (433) to be meshed with the ratchet wheel (432) is arranged on the driving rod (431).

4. A desk and chair suitable for students with different heights as claimed in claim 3, wherein: the support rod (22) is provided with a second elastic piece (4311) used for driving the drive rod (431) to rotate upwards.

5. The desk and chair suitable for students with different heights as claimed in claim 4, wherein: one end, far away from the ratchet wheel (432), of the driving rod (431) is hinged to a pedal (4312), and a butting block (4314) used for limiting the rotation of the pedal (4312) is arranged on the driving rod (431).

6. The desk and chair suitable for students with different heights as claimed in claim 5, wherein: the driving rod (431) is provided with a third elastic piece (4313) for driving the pedal (4312) to rotate upwards.

7. The desk and chair suitable for students with different heights as claimed in claim 2, wherein: spacing portion (5) include fixture block (51), set up mounting hole (52) with the inner wall intercommunication on bracing piece (22), fixture block (51) slide and wear to establish in mounting hole (52), along self length direction interval on the lateral wall of rack (42) be equipped with a plurality of draw-in grooves (54) that supply fixture block (51) joint.

8. The desk and chair suitable for students with different heights as claimed in claim 7, wherein: one end, close to the rack (42), of the fixture block (51) is provided with an inclined surface facing the rack (42), the inclined surface of the fixture block (51) faces downwards, and the support rod (22) is provided with a fourth elastic element (53) used for driving the fixture block (51) to slide towards one side close to the rack (42).