CN213045999U - Desk and chair capable of preventing rubber foot pad from falling off easily - Google Patents

Abstract

The utility model discloses a prevent desk chair that foot cushion easily drops relates to teaching aid technical field. This prevent desk chair that foot cushion easily drops, including the seat, the chair leg has all been welded in the bottom four corners of seat, and the inside of four chair legs all is equipped with the cylinder pole, and the short cylinder of screw thread has all been welded to the bottom of four cylinder poles, and the stopper has all been welded at the top of four cylinder poles. This prevent desk chair that foot cushion easily drops, the screw hole that the callus on the sole piece was seted up through the top and the short cylinder threaded connection of cylinder pole bottom welded screw thread, the effectual problem that desk chair callus on the sole easily drops that has prevented, again because the outside cover of rotary rod is equipped with the cushion, the cushion that divide into two sides can be through the rotatory cushion of student's own hobby, can effectually alleviate the fatigue that the student sat for a long time, height through the adjustment back, make this desk chair adapt to most students ' height through the adjustment, the problem of student's hunchback has been prevented to a certain extent.

Description

Desk and chair capable of preventing rubber foot pad from falling off easily

Technical Field

The utility model relates to a teaching aid technical field specifically is a prevent desk chair that foot cushion easily drops.

Background

The desk and chair is called desk and chair for students, and is also called student desk and chair or school desk and chair.

As the students are different in grade and height, the desks and desks with different heights are often matched, but some students grow faster, the matched desks and chairs are often required to be replaced in time, otherwise humpback is easily generated, and the influence on the future of the students is caused, as the heights of the students are not uniformly increased, the desk and the chair which are matched with the heights of the students cannot be replaced for the students in time, in school, in order to prevent the student from being short-sighted or astigmatic due to the long-term fixation of the seat, the teacher can change the position of the student for several weeks, because the chair needs to be moved when the position is changed, but the students are easy to generate noise when moving, the traditional teaching chair is clamped or glued with rubber cushions at the four corners of the chair, but after a long time of use, the desk and the chair can fall off, so that the requirements of users cannot be better met when the traditional desk and the chair are used.

SUMMERY OF THE UTILITY MODEL

The utility model provides a prevent desk chair that foot cushion easily drops, the effectual problem that has prevented that desk chair callus on the sole from easily dropping is the effectual fatigue of alleviating student's seat for a long time again, adapts to most students' height through the adjustment, has prevented the problem that the student stooped across to a certain extent.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a desk and chair capable of preventing foot rubber pads from falling off easily comprises a chair, chair legs are welded at four corners of the bottom of the chair, cylindrical rods are sleeved inside the four chair legs, threaded short cylinders are welded at the bottoms of the four cylindrical rods, limit blocks are welded at the tops of the four cylindrical rods, threads are arranged at the tops of front surfaces of the four cylindrical rods, foot cushion blocks are connected to the outer surfaces of the threaded short cylinders in a threaded mode, threaded holes are formed in the tops of the four foot cushion blocks, hollow threaded columns are welded at the bottoms of the inner walls of the four chair legs, supporting rods are welded between every two parallel chair legs, long column rods are welded at two corners of one side of the top of the chair in a parallel mode, a plurality of clamping grooves are formed in opposite sides of the two long column rods, a backrest is movably sleeved on the outer surfaces of the two long column rods, sliding grooves are formed in two sides of the bottom of the front surface of the backrest, two the inside of spout all slides and inlays and is equipped with the slider, two the bottom of slider mutually opposite mutually one side all welds the fixture block.

Set up in order to confirm the position to the screw thread, conduct the utility model relates to a prevent that desk chair that foot cushion easily drops is preferred, four the screw thread is all seted up to the inner wall of hollow thread post, and four the screw thread phase-match that the screw thread of hollow thread post inner wall all seted up with four cylinder pole positive surface tops, four the stopper is greater than four the diameter of hollow thread post.

In order to make fixture block and draw-in groove carry out the block and be connected, conduct the utility model relates to a prevent that desk chair that foot cushion easily drops is preferred, a plurality of the length and the fixture block phase-match of draw-in groove, it is a plurality of the width and the fixture block phase-match of draw-in groove, and the interior table wall of draw-in groove is connected with the surface block of fixture block.

In order to confirm the position of cushion, conduct the utility model relates to a prevent that desk chair that foot cushion easily drops is preferred, square groove has been seted up at the positive surface middle part of back, and the inside rotation in square groove inlays and is equipped with the rotary rod, the surface cover of rotary rod is equipped with the cushion.

In order to facilitate the use of students, as the utility model relates to a prevent that desk chair that foot cushion easily drops is preferred, the cushion divide into two sides, the one side of cushion is the soft face filling block, the cushion another side is the stereoplasm material piece.

In order to make the callus on the sole better fixed, conduct the utility model relates to a prevent that desk chair that foot cushion easily drops is preferred, four the callus on the sole top all scribbles and is equipped with the magnetic layer, four the bottom of chair leg all scribbles and is equipped with the magnetic layer.

The utility model provides a desk and chair capable of preventing foot rubber pads from falling off easily. The method has the following beneficial effects:

(1) this prevent desk chair that foot cushion easily drops, the screw hole that the callus on the sole piece was seted up through the top and the short cylinder threaded connection of cylinder pole bottom welded screw thread, the effectual problem that desk chair callus on the sole easily drops that has prevented, again because square groove has been seted up at the positive surperficial middle part of back, and square inslot portion rotatory installation has the rotary rod, the outside cover of rotary rod is equipped with the cushion, the cushion that divide into two sides can rotate the cushion through student's own hobby, can effectually alleviate the fatigue that the student sat for a long time.

(2) This prevent desk chair that foot cushion easily drops, the cylinder pole of establishing through the inside cover of chair leg passes through threaded connection extendible and fixed, through slider bottom welded fixture block and draw-in groove looks block again, can the height of effectual adjustment back for this desk chair adapts to most students' height through the adjustment, has prevented the problem of student hunchback to a certain extent.

Drawings

Fig. 1 is a partial perspective view of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a schematic view of the chair leg of the present invention;

fig. 4 is an enlarged view of a slider portion of the present invention.

In the figure: 1. a seat; 2. a support bar; 3. a foot pad block; 4. a chair leg; 5. a backrest; 6. a soft cushion; 7. rotating the rod; 8. a slider; 9. a long cylindrical rod; 10. a cylindrical rod; 11. a chute; 12. a card slot; 13. a clamping block; 14. a threaded short cylinder; 15. a threaded hole; 16. a limiting block; 17. a hollow threaded post.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a desk and chair capable of preventing foot rubber pads from falling off easily comprises a chair 1, chair legs 4 are welded at four corners of the bottom of the chair 1, cylindrical rods 10 are sleeved inside the four chair legs 4, threaded short cylinders 14 are welded at the bottoms of the four cylindrical rods 10, limit blocks 16 are welded at the tops of the four cylindrical rods 10, threads are arranged at the tops of front surfaces of the four cylindrical rods 10, foot cushion blocks 3 are connected to outer surfaces of the threaded short cylinders 14 in a threaded manner, threaded holes 15 are formed in the tops of the four foot cushion blocks 3, hollow threaded columns 17 are welded at the bottoms of inner walls of the four chair legs 4, supporting rods 2 are welded between every two parallel chair legs 4, long cylindrical rods 9 are welded at two corners of one side of the top of the chair 1 in a parallel manner, a plurality of clamping grooves 12 are formed in opposite sides of the two long cylindrical rods 9, a backrest 5 is movably sleeved on the outer surfaces of the two long cylindrical rods 9, sliding grooves 11 are formed in two sides of the bottom of the, the inside of two spouts 11 is all slided and is inlayed and be equipped with slider 8, and the bottom of two slider 8 one side of the back of the body mutually all welds fixture block 13.

In this embodiment: the desk and chair is moved to a required position through a handheld backrest 5, then the chair 1 is turned upside down, then the handheld foot pad 3 is in threaded connection with a threaded hole through a threaded short cylinder 14 welded at the bottom of a cylindrical rod 10, after four corners of the handheld foot pad are connected in sequence according to the method, when the requirement for heightening is determined, the chair leg 4 can be further held by hands, then the foot cushion block 3 is pulled outwards to separate a magnetic layer at the top of the foot pad 3 from a magnetic layer at the top of the chair leg 4, at the moment, the cylindrical rod 10 slides out of the chair leg 4, after the cylindrical rod 10 slides out for a certain distance, threads arranged at the top of the cylindrical rod are lapped on a hollow threaded column 17 at the bottom of the inner wall of the chair leg 4, then the cylindrical rod 10 is held by hands to rotate, a limiting block 16 at the top of the cylindrical rod 10 abuts against the top of the hollow threaded column 17 after rotating for a certain distance, four corners are operated in sequence according to the steps, and then, the sliding block 8 at the bottom of the front surface of the backrest 5 is pressed by fingers of two hands, then, the sliding block 8 welded at the bottom of the sliding block 8 is slightly pushed to be separated from the clamping groove 12 on the long cylindrical rod 9, then, the backrest 5 is slightly lifted by holding the backrest 5, so that the backrest 5 is lifted, the sliding block 8 can be pushed to slide in the sliding groove 11 when the height is determined, the clamping block 13 welded at the bottom of the sliding block 8 is clamped in the clamping groove 12, and the backrest can be used at the moment.

Specifically, the inner walls of the four hollow threaded columns 17 are all provided with threads, the threads of the inner walls of the four hollow threaded columns 17 are all matched with the threads arranged on the tops of the front surfaces of the four cylindrical rods 10, and the four limiting blocks 16 are larger than the diameters of the four hollow threaded columns 17.

In this embodiment: after the cylindrical rod 10 slides out for a certain distance, the thread arranged at the top of the cylindrical rod is lapped on the hollow threaded column 17 at the bottom of the inner wall of the chair leg 4, then the cylindrical rod 10 is held by hand to rotate, and the limiting block 16 at the top of the cylindrical rod 10 abuts against the top of the hollow threaded column 17 after the cylindrical rod rotates for a certain distance.

Specifically, the lengths of the plurality of clamping grooves 12 are matched with the clamping blocks 13, the widths of the plurality of clamping grooves 12 are matched with the clamping blocks 13, and the inner surface wall of each clamping groove 12 is connected with the outer surface of each clamping block 13 in a clamping mode.

In this embodiment: when the height is determined, the sliding block 8 can be pushed to slide in the sliding groove 11, and the clamping block 13 welded at the bottom of the sliding block 8 is clamped in the clamping groove 12.

Specifically, square groove has been seted up at the positive surface middle part of back 5, and square groove's inside is rotatory to be inlayed and is equipped with rotary rod 7, and rotary rod 7's surface cover is equipped with cushion 6.

In this embodiment: a square groove is formed in the middle of the front surface of the backrest 5, the rotary rods 7 are embedded in two sides of the square groove in a rotating mode, and the soft pads 6 are sleeved on the outer surfaces of the rotary rods 7 and are divided into two surfaces.

Specifically, the soft cushion 6 is divided into two surfaces, one surface of the soft cushion 6 is a soft surface filling block, and the other surface of the soft cushion 6 is a hard material block.

In this embodiment: because the soft cushion 6 is divided into two sides, one side is soft face filling block, and the other side is hard material block, so the student can adjust through the rotary rod 7 by oneself hobby.

Specifically, the top parts of the four foot cushion blocks 3 are coated with magnetic layers, and the bottom parts of the four chair legs 4 are coated with magnetic layers.

In this embodiment: the legs 4 are held in hand and the foot rest 3 is then pulled outwardly to separate the magnetic layer on top of its foot rest 3 from the magnetic layer on top of the legs 4, whereupon the cylindrical rod 10 slides out of the interior of the legs 4.

When the chair is used, the desk and chair is moved to a required position through the handheld backrest 5, the chair 1 is turned upside down, then the handheld foot pad block 3 is connected in a threaded hole through the threaded short cylinder 14 welded at the bottom of the cylindrical rod 10 in a threaded manner, after four corners of the handheld foot pad block are connected in sequence according to the method, the chair leg 4 can be further held by hands when the requirement for heightening is determined, then the foot pad block 3 is pulled outwards to separate a magnetic layer at the top of the foot pad block 3 from a magnetic layer at the top of the chair leg 4, at the moment, the cylindrical rod 10 slides out from the inside of the chair leg 4, after the cylindrical rod 10 slides out for a certain distance, the thread arranged at the top of the cylindrical rod 10 is lapped on the hollow threaded column 17 at the bottom of the inner wall of the chair leg 4, then the cylindrical rod 10 is held by hands to rotate, the limiting blocks 16 at the top of the cylindrical rod 10 abut against the top of the hollow threaded column 17 after the certain distance is rotated, then the sliding block 8 at the bottom of the front surface of the backrest 5 is pressed by fingers of two hands, then the sliding block 8 is slightly pushed to separate a clamping block 13 welded at the bottom of the sliding block 8 from a clamping groove 12 on the long cylindrical rod 9, then the backrest 5 is held by hand to be lifted slightly, so that the backrest 5 is lifted, when the height is determined, the sliding block 8 can be pushed to slide in the sliding groove 11, the clamping block 13 welded at the bottom of the sliding block 8 is clamped in the clamping groove 12, and the chair can be used at the moment, a square groove is arranged in the middle of the front surface of a backrest 5, rotary rods 7 are rotatably embedded in two sides of the square groove, a soft cushion 6 is sleeved on the outer surface of each rotary rod 7, the soft cushion 6 is divided into two surfaces, one surface is a soft surface filling block, the other surface is a hard material block, therefore, students can like to adjust the desk and chair through the rotating rod 7, and the four supporting rods 2 are welded on the desk and chair, so that the desk and chair is more stable.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a prevent desk chair that foot cushion easily drops, includes seat (1), its characterized in that: chair legs (4) are welded at four corners of the bottom of the chair (1), cylindrical rods (10) are sleeved inside the four chair legs (4), threaded short cylinders (14) are welded at the bottoms of the four cylindrical rods (10), limit blocks (16) are welded at the tops of the four cylindrical rods (10), threads are arranged at the tops of the front surfaces of the four cylindrical rods (10), foot cushion blocks (3) are connected to the outer surfaces of the four threaded short cylinders (14) in a threaded manner, threaded holes (15) are arranged at the tops of the four foot cushion blocks (3), hollow threaded columns (17) are welded at the bottoms of the inner walls of the four chair legs (4), supporting rods (2) are welded between every two parallel chair legs (4), long cylindrical rods (9) are welded at two corners of one side of the top of the chair (1) in a parallel manner, and a plurality of clamping grooves (12) are formed in the opposite sides of the two long cylindrical rods (9), two the surface activity cover of long post pole (9) is equipped with back (5), spout (11), two have all been seted up to the positive surface bottom both sides of back (5) the inside of spout (11) is all slided and is inlayed and be equipped with slider (8), two slider (8) back of the body one side of the back of the body bottom has all welded fixture block (13).

2. The desk and chair capable of preventing the foot rubber pad from falling off easily according to claim 1, characterized in that: the inner walls of the four hollow threaded columns (17) are all provided with threads, the threads of the inner walls of the four hollow threaded columns (17) are all matched with the threads arranged at the tops of the front surfaces of the four cylindrical rods (10), and the four limiting blocks (16) are larger than the diameters of the four hollow threaded columns (17).

3. The desk and chair capable of preventing the foot rubber pad from falling off easily according to claim 1, characterized in that: a plurality of the length of draw-in groove (12) and fixture block (13) phase-match, it is a plurality of the width and the fixture block (13) phase-match of draw-in groove (12), and the interior table wall of draw-in groove (12) is connected with the surface block of fixture block (13).

4. The desk and chair capable of preventing the foot rubber pad from falling off easily according to claim 1, characterized in that: the utility model discloses a rotary chair, including back (5), the positive surface middle part of back (5) has seted up square groove, and the inside rotation in square groove inlays and is equipped with rotary rod (7), the surface cover of rotary rod (7) is equipped with cushion (6).

5. The desk and chair capable of preventing the foot rubber pad from falling off easily according to claim 4, characterized in that: the soft cushion (6) is divided into two surfaces, one surface of the soft cushion (6) is a soft surface filling block, and the other surface of the soft cushion (6) is a hard material block.

6. The desk and chair capable of preventing the foot rubber pad from falling off easily according to claim 1, characterized in that: the top parts of the four foot cushion blocks (3) are respectively coated with a magnetic layer, and the bottom parts of the four chair legs (4) are respectively coated with a magnetic layer.

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