Student lunch chair with step-in legs

Abstract

Student lunch chair ladder plug-in foot, lunch chair and desk, lunch chair includes chair seat plate, the back of the chair seat plate is provided with an adjustable backrest plate, the chair seat plate is connected with chair support foot and chair bottom foot, the chair bottom foot is at least left and right two, the desk has desk bottom foot, the desk bottom foot is at least left and right two, the rear of the left and right two chair bottom foot has extension foot, the outside width B1 between the left and right two extension foot is less than the inside width C between the left and right two desk bottom foot, the two chair extension foot is arranged between the two desk bottom foot during use. The extension foot extending backward supports the weight of the person lying on the lunch chair, avoiding the chair from leaning backward, and the use is stable and safe. In particular, the extension foot extends into the space between the left and right two desk bottom foot, fully and reasonably utilizes the space below the desk, does not occupy the original space in front of and behind the desk and chair in the classroom, and ensures the effective setting of the desk and chair in the classroom.

Description

TECHNICAL FIELD

[0001] The present application relates to a student lunch break chair, in particular to a student lunch break chair ladder plug-in type foot. BACKGROUND

[0002] In order to solve the problem of student lunch break, various adjustable chair backrests are designed, but the chair backrests in the inclined state will often be tilted backward to bear the weight of the human back and head, which will cause a safety hazard. Therefore, some people lengthen the rear section of the chair foot to improve the reliability of the chair. However, the existing chair foot is wide, and after lengthening, it occupies a large space in the classroom, which cannot be reasonably utilized. Therefore, another type of design is to connect the front table and the rear chair into a whole, that is, to set the table and the chair on the same foot, so as to overcome the problem of chair tilting backward. However, after connecting the table and the chair into a whole, it is troublesome to manufacture, install and correct. In addition, due to the large volume and the heavy weight, it is not convenient to move when in use, and it is more troublesome to clean the classroom. In addition, due to the long foot, the packaging cost of the product is high. SUMMARY

[0003] The purpose of the present application is to overcome the shortcomings of the prior art, provide a student desk and chair that are separate, can be used as a lunch break bed, fully and reasonably utilize the classroom space, can place more desks and chairs, avoid the chair tilting backward, use stably and safely, and save labor in manufacturing and assembling, which is conducive to moving, has a small volume, and saves packaging cost.

[0004] The first technical solution of the student lunch break chair ladder plug-in type foot of the present application is that there is a lunch break chair and a desk. The lunch break chair includes a chair seat plate, a backrest plate is arranged at the rear of the chair seat plate and can be inclined and adjusted, a chair support foot and a chair foot are connected below the chair seat plate, the chair foot is at least two left and right ones, the desk has a desk foot, the desk foot is at least two left and right ones, the rear part of each of the left and right chair feet is provided with an extension foot extending rearward, and the outside width B1 between the left and right extension feet is smaller than the inside width C between the left and right desk feet. When in use, the two chair extension feet are arranged between the two desk feet.

[0005] The application discloses a student lunch break chair ladder plug-in type bottom foot, mainly comprising extended feet extended backward at the rear of the left and right chair bottom feet of the lunch break chair, wherein the outside width B1 between the left and right extended feet is smaller than the width C between the inner sides of the left and right table bottom feet, the extended feet of the front lunch break chair can be extended between the table bottom feet of the rear table (the front table and the rear lunch break chair form a set of table and chair, and the table and chairs in the classroom are arranged in front and back and side by side), the table feet can be lifted and adjusted, the backrest plate is adjusted to be inclined backward when the table feet and the table plate are lifted upward, and students can lie on the chair seat plate and the inclined backrest plate to have a lunch break, the technical scheme has the advantages that the extended feet extended backward support the weight of the human body lying on the lunch break chair, the chair is prevented from tilting backward, the chair is stable and safe in use, the extended feet are extended into the left and right table bottom feet under the rear table, the space under the table is fully and reasonably utilized, the space in front of and behind the table and chair in the classroom is not occupied, the effective arrangement of the table and chair in the classroom is ensured, the extended feet also limit the front and back arrangement of the table and chair, the table and chair are arranged in front and back in order, and compared with the existing integrated lunch break chair and table, the chair has the advantages of small size, convenient movement, low packaging cost, easy manufacturing, assembly and maintenance.

[0006] The extended feet of the student lunch break chair ladder plug-in type bottom foot are arranged on the inner sides of the chair bottom feet, and the extended feet are fixedly connected or movably connected with the chair bottom feet.

[0007] The movable connection is that two or more connecting holes are formed in the inner sides of the chair bottom feet, two or more connecting pins are formed in the side wall of the extended feet, and the connecting pins are plug-in connected with the connecting holes.

[0008] The movable connection is that a sleeve is connected with the chair bottom feet at the inner side of the chair bottom feet, the sleeve is fixedly connected with the chair bottom feet, the sleeve is provided with a plug hole, one end of the extended feet is inserted into the sleeve, and a pin hole is formed in the extended feet and matched with the plug hole by a pin.

[0009] The left and right extended feet are provided with a reinforcing rod.

[0010] The second technical scheme of the stepped plug-in type foot of the student lunch break chair is as follows: there are a lunch break chair and a desk, the lunch break chair comprises a seat plate, a back plate is arranged at the rear of the seat plate and can be adjusted in inclination, a chair support foot and a chair foot are connected to the seat plate, the chair foot is at least two left and right feet, the desk has a desk foot, the desk foot is at least two left and right feet, the width B2 of the outer side of the two chair feet is less than the width C of the inner side between the two desk feet, and the two chair feet are provided with extension sections extending rearward at the rear thereof respectively, and the extension sections are arranged between the two desk feet during use.

[0011] The third technical scheme of the stepped plug-in type foot of the student lunch break chair is as follows: there are a lunch break chair and a desk, the lunch break chair comprises a seat plate, a back plate is arranged at the rear of the seat plate and can be adjusted in inclination, a chair support foot and a chair foot are connected to the seat plate, the chair foot is at least two left and right feet, the desk has a desk foot, the desk foot is at least two left and right feet, the rear of the two chair feet is provided with an extension foot extending rearward respectively, the width of the inner side of the two extension feet is greater than the width of the outer side of the two desk feet, and the two desk feet are located between the two extension feet during use.

[0012] The fourth technical scheme of the stepped plug-in type foot of the student lunch break chair is as follows: there are a lunch break chair and a desk, the lunch break chair comprises a seat plate, a back plate is arranged at the rear of the seat plate and can be adjusted in inclination, a chair support foot and a chair foot are connected to the seat plate, the chair foot is at least two left and right feet, the desk has a desk foot, the desk foot is at least two left and right feet, the rear of the two chair feet is provided with an extension cover extending rearward respectively, and the extension cover cooperates with the desk foot arranged rearward thereof during use. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional view of the extension foot of the lunch break chair arranged inside the chair foot and inserted between the two desk feet under the desk;

[0014] Figure 2 It is a three-dimensional view of the extension foot of the lunch break chair arranged inside the chair foot and inserted between the two desk feet under the desk;

[0015] Figure 3 It is a three-dimensional view of the extension foot of the lunch break chair arranged inside the chair foot and inserted between the two desk feet under the desk;

[0016] Figure 4 It is a three-dimensional view of the extension foot of the lunch break chair arranged inside the chair foot and inserted between the two desk feet under the desk;

[0017] Figure 5 It is a three-dimensional view of the extension foot of the lunch break chair arranged inside the chair foot and inserted between the two desk feet under the desk;

[0018] Figure 6is a stereo diagram of the extension section and the chair bottom foot of the lunch break chair being connected integrally with the same width and being inserted between the two desk bottom feet;

[0019] Figure 7 is a top view diagram of the extension section and the chair bottom foot being connected integrally with the same width and being inserted between the two desk bottom feet;

[0020] Figure 8 is a stereo diagram of the extension foot of the lunch break chair and the chair bottom foot of the desk in the lateral cooperation state;

[0021] Figure 9 is a stereo diagram of the lunch break chair with the extension cover set at the rear part of the chair bottom foot;

[0022] Figure 10 is a stereo diagram of the extension cover of the lunch break chair and the desk bottom foot in the cooperation state;

[0023] Figure 11 is a stereo diagram of the desk foot and the desk top plate being raised and cooperating with the inclined back plate of the chair. DETAILED DESCRIPTION

[0024] The present application relates to a student lunch break chair ladder plug-in bottom foot, like Figure 1 — Figure 5 and Figure 11As shown, there are lunch break chairs 1 and desks 3. The lunch break chair comprises a seat plate 11, a back plate 12 provided at the back of the seat plate and capable of being adjusted in inclination, a chair support leg 41 connected to the seat plate, and a chair bottom leg 13 connected to the seat plate. The chair bottom leg has at least two left and right legs. The desk 3 has a desk bottom leg 31, which has at least two left and right legs. The back of each of the left and right chair bottom legs 13 is provided with a rearwardly extending extension leg 14. The width B1 of the left and right extension legs at the outside is less than the width C of the inside between the left and right desk bottom legs 31. In use, the extension legs of the two chairs are arranged between the left and right desk bottom legs 31. The main point of the present application is that the back of each of the left and right chair bottom legs 13 is provided with a rearwardly extending extension leg 14, and the width B1 of the left and right extension legs at the outside is less than the width C of the inside between the left and right desk bottom legs 31. In use, the extension leg of the front lunch break chair can be arranged between the desk bottom legs of the rear desk (the front desk and the rear lunch break chair form a set of desk and chair, and a plurality of sets of desk and chair are arranged in parallel in the front and rear directions and in the left and right directions in the classroom). The desk leg is capable of being adjusted in height. When the desk leg and the desk plate are raised, the back plate 12 is adjusted in inclination. The student can lie on the seat plate 11 and the inclined back plate 12 to take a lunch break. The present application has the advantages that the rearwardly extending extension leg supports the weight of the person lying on the lunch break chair, avoids the chair from tilting backward, is stable and safe in use, and particularly, the extension leg is arranged between the left and right desk bottom legs 31 under the rear desk, fully and reasonably utilizes the space under the desk 3, does not occupy the space in the front and rear directions of the original desk and chair in the classroom, ensures the effective arrangement of the desk and chair in the classroom, and limits the arrangement of the desk and chair in the front and rear directions. Compared with the existing integrated lunch break chair and desk, the present application has the advantages of small size, easy movement, low packaging cost, and easy manufacturing, assembling and maintenance. The extension leg 14 is arranged at the inside of the chair bottom leg 13 and is fixedly connected or movably connected to the chair bottom leg. The movable connection is that two or more connecting holes 15 are formed at the inside of the chair bottom leg 13, two or more connecting pins 16 are formed at the side wall of the extension leg 14, and the connecting pins are inserted into the connecting holes. The movable connection is that a sleeve 17 is formed at the inside of the chair bottom leg 13, the sleeve is fixedly connected to the chair bottom leg, a plug hole 18 is formed in the sleeve, one end of the extension leg 14 is inserted into the sleeve, a pin hole 19 is formed in the extension leg, and a plug pin 20 is inserted into the plug hole and the pin hole. Different movable connection modes can be adopted according to the requirement. All the front and rear movable connections or front and rear telescopic connections belong to the protection scope of the present application. A reinforcing rod 24 is arranged between the left and right extension legs 14. The reinforcing rod improves the connection reliability between the left and right extension legs 14.

[0025] The present application relates to a second student lunch break chair step plug-in type bottom leg, as shown in Figure 6 and Figure 7As shown, there are a lunch chair 1 and a desk 3, the lunch chair 1 comprises a seat plate 11, a back plate 12 is arranged at the back of the seat plate 11 and can be adjusted in inclination, a chair support leg 41 and a chair bottom leg 13 are connected below the seat plate 11, the chair bottom leg 13 is at least two left and right chair bottom legs, the desk 3 has a desk bottom leg 31, the desk bottom leg 31 is at least two left and right desk bottom legs, the outside width B2 of the left and right chair bottom legs 13 is smaller than the inside width C between the left and right desk bottom legs 31, and the rear part of the left and right chair bottom legs 13 is respectively provided with an extension segment 42 extending rearward, and the extension segment is arranged between the two desk bottom legs 31 during use.

[0026] The present application relates to a third lunch chair for students, and particularly relates to a ladder type plug-in bottom leg of the lunch chair. Figure 8 As shown, there are a lunch chair 1 and a desk 3, the lunch chair 1 comprises a seat plate 11, a back plate 12 is arranged at the back of the seat plate 11 and can be adjusted in inclination, a chair support leg 41 and a chair bottom leg 13 are connected below the seat plate 11, the chair bottom leg 13 is at least two left and right chair bottom legs, the desk 3 has a desk bottom leg 31, the desk bottom leg 31 is at least two left and right desk bottom legs, the rear part of the left and right chair bottom legs 13 is respectively provided with an extension leg 14 extending rearward, the inside width of the left and right extension legs is greater than the outside width of the left and right desk bottom legs 31 of the desk 3, and the two desk bottom legs are located between the two extension legs 14 during use.

[0027] The present application relates to a fourth lunch chair for students, and particularly relates to a ladder type plug-in bottom leg of the lunch chair. Figure 9 and Figure 10 As shown, there are a lunch chair 1 and a desk 3, the lunch chair 1 comprises a seat plate 11, a back plate 12 is arranged at the back of the seat plate 11 and can be adjusted in inclination, a chair support leg 41 and a chair bottom leg 13 are connected below the seat plate 11, the chair bottom leg 13 is at least two left and right chair bottom legs, the desk 3 has a desk bottom leg 31, the desk bottom leg 31 is at least two left and right desk bottom legs, the rear part of the left and right chair bottom legs 13 is respectively provided with an extension leg 14 extending rearward, the inside width of the left and right extension legs is greater than the outside width of the left and right desk bottom legs 31 of the desk 3, and the two desk bottom legs are located between the two extension legs 14 during use.

Claims

1. A student nap chair with stepped, plug-in base, comprising a nap chair (1) and a desk (3), wherein the nap chair includes a seat board (11), a backrest board (12) that can be tilted and adjusted at the rear of the seat board, and chair support legs (41) and chair base legs (13) connected under the seat board, with at least two base legs on the left and right; wherein the desk (3) has table legs and table base legs (31), with at least two base legs on the left and right; characterized in that: The table legs can be lifted and adjusted, the rear part of the left and right chair legs (13) respectively has a rear extending leg (14), the outside width B1 between the left and right extending legs is less than the inside width C between the left and right table legs (31) of the desk (3), and the extending legs of the two chairs are arranged between the two table legs (31) during use.

2. The student lunch chair stairway plug-in foot according to claim 1, wherein: The extending leg (14) is arranged on the inside of the chair leg (13), and the extending leg is fixedly connected or movably connected with the chair leg.

3. The student lunch chair stairway plug-in foot according to claim 2, wherein: The movable connection is that two or more connecting holes (15) are formed on the inside of the chair leg (13), two or more connecting pins (16) are formed on the side wall of the extending leg (14), and the connecting pins are insertedly connected with the connecting holes.

4. The student lunch chair stairway plug-in foot according to claim 2, wherein: The movable connection is that a sleeve (17) is connected on the inside of the chair leg (13), the sleeve is fixedly connected with the chair leg, a plug hole (18) is formed on the sleeve, one end of the extending leg (14) is inserted into the sleeve, a pin hole (19) is formed on the extending leg, and a plug pin (20) is inserted through the plug hole and the pin hole.

5. The student lunch chair stairway plug-in foot according to claim 1, wherein: The left and right extending legs (14) are provided with a reinforcing rod (24) therebetween.

6. The step plug-in type base of student lunch chair, having a lunch chair (1) and a desk (3), the lunch chair (1) comprising a seat plate (11), the rear of the seat plate being provided with an adjustable back plate (12), the seat plate being connected with a chair support leg (41) and a chair base (13) below, the chair base being at least two left and right ones, the desk (3) having a desk leg and a desk base (31), the desk base being at least two left and right ones, characterized in that: The table legs can be lifted and adjusted, the outside width B2 of the left and right chair legs (13) is less than the inside width C between the left and right table legs (31) of the desk (3), and the rear part of the left and right chair legs (13) respectively has a rear extending leg (14), and the extending leg is arranged between the two table legs (31) during use.

7. A step plug-in type base for student lunch chair, having a lunch chair (1) and a desk (3), said lunch chair comprising a seat plate (11) provided with a back plate (12) at the back of the seat plate, the back plate being adjustable in inclination, the seat plate being connected with a chair support leg (41) and a chair base leg (13) below, the chair base leg being at least two, left and right, said desk (3) having a desk leg and a desk base leg (31), the desk base leg being at least two, left and right, characterized in that: The table legs can be lifted and adjusted, the rear part of the left and right chair legs (13) respectively has a rear extending leg (14), the inside width of the left and right extending legs is greater than the outside width of the left and right table legs (31) of the desk (3), and the two table legs are arranged between the two extending legs (14) during use.

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