CN213096824U

CN213096824U - Adjustable student chair

Info

Publication number: CN213096824U
Application number: CN202021556053.9U
Authority: CN
Inventors: 张原嘉
Original assignee: Chongqing Quantum Space Time Education Technology Co ltd
Current assignee: Chongqing Quantum Space Time Education Technology Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-05-04
Anticipated expiration: 2030-07-30

Abstract

The utility model relates to a student's seat technical field especially relates to a student's seat with adjustable. The technical scheme is as follows: the utility model provides a student's seat with adjustable, includes the base, is fixed with the back on the base, installs lifting screw nut mechanism on the back, and lifting mechanism nut mechanism's output is connected with sideslip screw nut mechanism, and sideslip screw nut mechanism's output is connected with the pin that is used for restricting user's position of sitting. The utility model provides a student's seat with adjustable can restrict student's position of sitting has solved the problem that current seat can't adjust student's position of sitting.

Description

Adjustable student chair

Technical Field

The utility model relates to a student's seat technical field especially relates to a student's seat with adjustable.

Background

The problems of myopia, humpback and spondylopathy are the main diseases which afflict children, students, office workers and other groups at present. The problems are mainly caused by poor sitting postures (the legs shake continuously, the legs lift two landlors and the feet cross) and fixed sitting postures for too long time, so that the chair also changes over the ground, has higher and higher functions and requirements on the chair, and is suitable for the transportation of the chairs on different occasions.

The invention patent with the patent application number of CN201711056627.9 discloses a sitting posture adjustable chair for students, which comprises a lifting sleeve rod, supporting legs, a correcting backrest and a convex block; the utility model relates to a chair capable of adjusting sitting posture for students, which is provided with a foot pad through the lower end of a supporting leg, the foot pad is made of rubber material, the supporting leg reduces direct friction with the ground in the moving process, avoids noise pollution, namely, the backrest is adjusted and corrected to tilt backwards by adjusting the connecting rod for a certain angle, so that the chair can be laid down at a comfortable level in the noon break, the pressure of the spine is relieved, the mind and the body are relaxed, the first elastic band and the second elastic band are crossed to be used for primarily fixing the body of the student so that the back of the student is superposed with the correcting backrest, the automatic adjustment of the height and the horizontal angle of the chair seat is realized by operating the adjusting connecting rod, thereby ensuring that the human body is in the correct sitting posture all the time, ensuring the health of the human body, some articles which can not be taken away and are afraid of losing are put into the storage box during school putting, and the student articles are placed through classification of the classification grooves, so that the space utilization rate is greatly improved.

However, this does not limit the sitting posture of the student. When students go to class, the backs of the students may be habitually bent or inclined forwards, so that the eyes are too close to the textbook, and myopia or humpback is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes prior art's is not enough, provides a student's seat with adjustable can restrict student's position of sitting, has solved the problem that the unable student's position of sitting of current seat adjusted.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a student's seat with adjustable, includes the base, is fixed with the back on the base, installs lifting screw nut mechanism on the back, and lifting mechanism nut mechanism's output is connected with sideslip screw nut mechanism, and sideslip screw nut mechanism's output is connected with the pin that is used for restricting user's position of sitting.

As a preferred embodiment of the present invention, the lifting screw nut mechanism includes a first polygonal tube fixed to a side of the backrest, a first nut is sleeved in the first polygonal tube, the first nut is connected to a first screw in a threaded manner, a first rotating shaft is fixed to the first screw, the first rotating shaft is connected to the inside of the first polygonal tube through a bearing, a lifting tube is fixed to the first nut, and the traverse screw nut mechanism is connected to the other end of the lifting tube; and the first rotating shaft is connected with a driving mechanism.

As the utility model discloses an optimal scheme, actuating mechanism includes the dwang, and the dwang passes through the bearing to be connected on first polygonal pipe, and the one end of dwang is connected with first hand wheel, and the other end of dwang is connected with drive bevel gear, and drive bevel gear meshing has driven bevel gear, and driven bevel gear installs in first pivot.

As the utility model discloses a preferred scheme, be fixed with on the first lead screw and be used for carrying out spacing first dog to first nut.

As the utility model discloses an optimal scheme, sideslip lead screw nut mechanism includes the multilateral venturi tube of second, and on the multilateral venturi tube of second was fixed in the output of lift lead screw nut mechanism, the intraductal cover of second polygon was equipped with the second nut, and second nut threaded connection has the second lead screw, is fixed with the second pivot on the second lead screw, and the second pivot is passed through the bearing and is connected in the second polygon intraductally, and the other end of second pivot is connected with the second hand wheel, is fixed with the sideslip pole on the second nut, and the pin is connected in the other end of sideslip pole.

As the preferred proposal of the utility model, the transverse moving rod is vertical to the backrest, and the stop lever is parallel to the backrest.

As the utility model discloses a preferred scheme, be fixed with on the second lead screw and be used for carrying out spacing second dog to the second nut.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an install lifting screw nut mechanism on the back, then lifting screw nut mechanism can adjust the height of sideslip lead screw nut mechanism. The transverse screw nut mechanism can adjust the position of the stop lever. After a user sits on the base, the transverse moving screw-nut mechanism and the stop lever can be moved to a proper height by adjusting the lifting screw-nut mechanism, so that the stop lever is flush with the area between the shoulder and the chest of the user. The stop rod can be tightly attached to the body of a user by adjusting the transverse screw and nut mechanism, so that the sitting posture of the user is limited, the situation that the back of the user bends or leans forward is avoided, and the occurrence of myopia or humpback is reduced.

2. The driving mechanism can drive the first rotating shaft to rotate, and then the first rotating shaft drives the first lead screw to rotate. Since the first nut is restricted from rotating by the first polygonal pipe, the first nut moves linearly by the first lead screw. When the first nut moves linearly, the lifting pipe is driven to move, and then the lifting pipe can drive the transverse screw nut mechanism and the stop lever to lift, so that the height of the stop lever is adjusted accurately.

3. When the first hand wheel is rotated, the first hand wheel drives the rotating rod to rotate, and the rotating rod drives the driving bevel gear to rotate. Under the meshing drive of the driving bevel gear, the driven bevel gear rotates, and then the driven bevel gear drives the first rotation and rotation, so that the input of power is realized, and the operation is convenient.

4. The first stop block can limit the limit position of the first nut, and the condition that the first nut is separated from the first lead screw is avoided.

5. When the second hand wheel is rotated, the second hand wheel drives the second rotating shaft to rotate, and the second rotating shaft drives the second screw rod to rotate. And the second nut is limited by the second polygonal pipe to rotate, so that the second nut moves linearly under the driving of the second lead screw. The second nut drives the transverse moving rod to move, the transverse moving rod drives the stop lever to move, the distance between the stop lever and the body of a user can be accurately adjusted, and the stop lever is guaranteed to accurately limit the sitting posture of the user.

6. The transverse moving rod is perpendicular to the backrest, and when the transverse moving rod is adjusted, the efficiency of adjusting the distance between the stop rod and the body of a user is highest. The stop lever is parallel to the backrest, so that the stop lever can be uniformly contacted with the front side of the body of a user, and the comfort of the user is ensured.

7. The second stop block can limit the limit position of the second nut, and the situation that the second nut is separated from the second lead screw is avoided.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a schematic structural view of the elevating screw nut mechanism;

fig. 4 is a schematic structural view of a traversing lead screw nut mechanism.

In the figure, 1-base; 2-backrest; 3-lifting screw nut mechanism; 4-traversing the screw nut mechanism; 5-a stop lever; 6-a drive mechanism; 31-a first polygonal tube; 32-a first nut; 33-a first lead screw; 34-a first rotating shaft; 35-a lifting tube; 36-a first stop; 41-a second polygonal tube; 42-a second nut; 43-a second lead screw; 44-a second shaft; 45-a second hand wheel; 46-a traversing bar; 47-a second stop; 61-rotating rod; 62-a first hand wheel; 63-drive bevel gear; 64-driven bevel gear.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1 and 2, the utility model discloses a student's seat with adjustable, including base 1, be fixed with back 2 on the base 1, install elevating screw nut mechanism 3 on the back 2, elevating screw nut mechanism's output is connected with sideslip lead screw nut mechanism 4, and sideslip lead screw nut mechanism 4's output is connected with the pin 5 that is used for restricting the user position of sitting. The utility model discloses an install lifting screw nut mechanism 3 on the back 2, then lifting screw nut mechanism 3 can adjust the height of sideslip lead screw nut mechanism 4. The transverse lead screw nut mechanism 4 can adjust the position of the stop lever 5. After a user sits on the base 1, the transverse moving screw-nut mechanism 4 and the stop lever 5 can be moved to a proper height by adjusting the lifting screw-nut mechanism 3, so that the stop lever 5 is flush with the area between the shoulders and the chest of the user. The transverse moving lead screw nut mechanism 4 is adjusted to enable the stop lever 5 to be clung to the body of a user, so that the sitting posture of the user is limited, the back of the user is prevented from bending or leaning forward, and the myopia or humpback is reduced.

Further, as shown in fig. 3, the lifting screw nut mechanism 3 includes a first polygonal tube 31, the first polygonal tube 31 is fixed to a side of the backrest 2, a first nut 32 is sleeved in the first polygonal tube 31, the first nut 32 is in threaded connection with a first screw 33, a first rotating shaft 34 is fixed on the first screw 33, the first rotating shaft 34 is connected to the first polygonal tube 31 through a bearing, a lifting tube 35 is fixed on the first nut 32, and the traversing screw nut mechanism 4 is connected to the other end of the lifting tube 35; the first shaft 34 is connected to a drive mechanism 6. The driving mechanism 6 can drive the first rotating shaft 34 to rotate, and then the first rotating shaft 34 drives the first lead screw 33 to rotate. Since the first nut 32 is restricted from rotating by the first polygonal pipe 31, the first nut 32 is linearly moved by the first lead screw 33. When the first nut 32 moves linearly, the lifting pipe 35 is driven to move, and then the lifting pipe 35 can drive the transverse screw nut mechanism 4 and the stop lever 5 to lift, so that the height of the stop lever 5 can be adjusted accurately.

Further, the driving mechanism 6 includes a rotating rod 61, the rotating rod 61 is connected to the first polygonal pipe 31 through a bearing, one end of the rotating rod 61 is connected to a first hand wheel 62, the other end of the rotating rod 61 is connected to a driving bevel gear 63, the driving bevel gear 63 is engaged with a driven bevel gear 64, and the driven bevel gear 64 is mounted on the first rotating shaft 34. When the first hand wheel 62 is rotated, the first hand wheel 62 drives the rotating rod 61 to rotate, and the rotating rod 61 drives the driving bevel gear 63 to rotate. Under the meshing drive of the driving bevel gear 63, the driven bevel gear 64 rotates, and then the driven bevel gear 64 drives the first rotation to rotate, so that the power input is realized, and the operation is convenient.

Further, a first stopper 36 for limiting the first nut 32 is fixed to the first lead screw 33. The first stopper 36 can limit the limit position of the first nut 32, and prevent the first nut 32 from being disengaged from the first lead screw 33.

Further, as shown in fig. 4, the traverse screw nut mechanism 4 includes a second polygonal tube 41, the second polygonal tube 41 is fixed to the output end of the elevation screw nut mechanism 3, a second nut 42 is sleeved in the second polygonal tube 41, a second screw 43 is screwed to the second nut 42, a second rotating shaft 44 is fixed to the second screw 43, the second rotating shaft 44 is connected to the inside of the second polygonal tube 41 through a bearing, a second hand wheel 45 is connected to the other end of the second rotating shaft 44, a traverse rod 46 is fixed to the second nut 42, and the stop rod 5 is connected to the other end of the traverse rod 46. When the second hand wheel 45 is rotated, the second hand wheel 45 drives the second rotating shaft 44 to rotate, and the second rotating shaft 44 drives the second lead screw 43 to rotate. Since the second nut 42 is restricted from rotating by the second polygonal pipe 41, the second nut 42 is linearly moved by the second lead screw 43. The second nut 42 drives the transverse moving rod 46 to move, the transverse moving rod 46 drives the stop lever 5 to move, the distance between the stop lever 5 and the body of a user can be accurately adjusted, and the stop lever 5 is guaranteed to accurately limit the sitting posture of the user.

Further, the traverse bar 46 is perpendicular to the backrest 2, and the bar 5 is parallel to the backrest 2. The traverse bar 46 is perpendicular to the backrest 2, and the adjustment of the distance between the stopper bar 5 and the user's body is most efficient when the traverse bar 46 is adjusted. The stop lever 5 is parallel to the backrest 2, so that the stop lever 5 can be uniformly contacted with the front of the body of the user, and the comfort of the user is ensured.

Further, a second stopper 47 for restricting the second nut 42 is fixed to the second lead screw 43. The second stopper 47 can limit the limit position of the second nut 42, and prevent the second nut 42 from being disengaged from the second lead screw 43.

Claims

1. The adjustable student chair is characterized by comprising a base (1), wherein a backrest (2) is fixed on the base (1), a lifting screw nut mechanism (3) is installed on the backrest (2), the output end of the lifting screw nut mechanism is connected with a transverse moving screw nut mechanism (4), and the output end of the transverse moving screw nut mechanism (4) is connected with a stop lever (5) used for limiting the sitting posture of a user.

2. The adjustable student chair according to claim 1, wherein the lifting screw-nut mechanism (3) comprises a first polygonal tube (31), the first polygonal tube (31) is fixed on the side of the backrest (2), a first nut (32) is sleeved in the first polygonal tube (31), the first nut (32) is in threaded connection with a first screw (33), a first rotating shaft (34) is fixed on the first screw (33), the first rotating shaft (34) is connected in the first polygonal tube (31) through a bearing, a lifting tube (35) is fixed on the first nut (32), and the transverse screw-nut mechanism (4) is connected to the other end of the lifting tube (35); the first rotating shaft (34) is connected with a driving mechanism (6).

3. The adjustable student seat according to claim 2, wherein the driving mechanism (6) comprises a rotating rod (61), the rotating rod (61) is connected to the first polygonal tube (31) through a bearing, a first hand wheel (62) is connected to one end of the rotating rod (61), a driving bevel gear (63) is connected to the other end of the rotating rod (61), the driving bevel gear (63) is engaged with a driven bevel gear (64), and the driven bevel gear (64) is installed on the first rotating shaft (34).

4. The adjustable student chair according to claim 3 wherein a first stop (36) for limiting the first nut (32) is fixed to the first lead screw (33).

5. The adjustable student chair according to claim 1, wherein the traverse screw-nut mechanism (4) comprises a second polygonal tube (41), the second polygonal tube (41) is fixed at the output end of the lifting screw-nut mechanism (3), a second nut (42) is sleeved in the second polygonal tube (41), the second nut (42) is in threaded connection with a second screw (43), a second rotating shaft (44) is fixed on the second screw (43), the second rotating shaft (44) is connected in the second polygonal tube (41) through a bearing, the other end of the second rotating shaft (44) is connected with a second hand wheel (45), a traverse rod (46) is fixed on the second nut (42), and the stop rod (5) is connected at the other end of the traverse rod (46).

6. An adjustable student chair as claimed in claim 5 wherein the cross bar (46) is perpendicular to the backrest (2) and the bar (5) is parallel to the backrest (2).

7. The adjustable student chair according to claim 5 wherein a second stop (47) for limiting the second nut (42) is fixed to the second lead screw (43).