CN221059962U - Noon break desk capable of being spliced adjacently - Google Patents

Abstract

The utility model discloses a noon break desk capable of being adjacently spliced, which comprises a turnover desk and a hasp desk, wherein the main structures of the turnover desk and the hasp desk are the same, and the difference is that a square turnover plate is arranged on the right side or the left side of the top of the turnover desk; a hasp is arranged on the left side or the right side of the top of the upper desk frame of the hasp desk; when in splicing, the square turning plate is turned upwards for 90 degrees to be flush with the square desk plate of the hasp desk, the right-angle inserting plate on the turning plate desk is downwards inserted into the hasp of the hasp desk, and the adjacent turning plate desk and the hasp desk are connected into a whole to form a noon break bed. The advantages are that: the universal compatibility is good, the heights of the turnover plate desk and the hasp desk are adjusted, and students in high and low grades are universal and convenient to manage; the length of the noon break bed spliced by the square turning plate is enough; the contact area of the desk legs and the floor is large, and the anti-abrasion rubber sleeve is arranged, so that the contact area with the floor is large, and the cement floor cannot be damaged.

Description

Noon break desk capable of being spliced adjacently

Technical Field

The utility model relates to a desk, in particular to a noon break desk with additional functions and capable of being spliced adjacently.

Background

A single desk for students in a general school is arranged in rows and columns in a classroom, and each row is generally composed of a plurality of small rows of units. In general, the desk is not unfixed, and because the desk is relatively light, slightly collides, and displacement easily occurs, the dislocation of the row and the column of the desk is easily caused, the arrangement is not uniform, the appearance of a classroom is influenced, and sometimes the desk is easy to make a harsh sound when being displaced, so that the desk is not beneficial to students to build a study atmosphere. Moreover, the desk which is moved frequently is easy to damage and the service life is prolonged. Meanwhile, the desk is not beneficial to students to use as noon break.

In order to solve the technical problems, the applicant submits an utility model patent application with the application number of CN201821802443.2 to the China patent office on the 11 th 2018 and 02 th, and discloses a desk capable of being connected with each other, which comprises a desk frame, a square desk top plate and a desk cabinet plate desk, wherein a foot stand comprises four desk legs; the movable buckle component is arranged on the desk leg and is used for connecting adjacent desks together, and comprises a hook piece and a movable locking mechanism, wherein the hook piece and the movable locking mechanism are arranged on the desk leg at the left side and the right side of the desk respectively; in addition, a telescopic baffle frame for preventing the chest from excessively approaching the tabletop is arranged below the tabletop plate. The advantages are that: the structure is scientific, simple and compact, and is easy to manufacture; the multifunctional desk has the advantages that the functions are more complete, the multifunctional desk is more convenient and practical, adjacent desks are connected through the movable buckle assembly, the desks can be orderly arranged when being arranged side by side, the multifunctional desk can also be used as a noon break bed for students, and the technical problem that the desks are easy to shift is solved.

However, during actual use, the applicant has found some drawbacks in detail, as follows: (1) The school desk is characterized in that the heights of students in all grades are in a trend of growing from low grades to high grades, and the heights of individuals of different students in the same grade are different, so that the heights of the school desks which can be connected with each other are consistent, the height of the school desks cannot be adjusted according to the heights of the students, and the school desks with fixed heights are not beneficial to the growth and development of the students, so that the school desks which can be connected with each other have the technical problem of unsatisfactory universal compatibility; (2) The length is not enough, when a student of a higher grade with higher height lies down, the student is suspended outside the desk when the feet are straightened, and only can sleep in a contracted posture, thereby being unfavorable for the physical development; (3) The contact area between the desk legs of the desk and the floor board which can be connected with each other is small, the floor board is easy to wear in a range for a long time, and even pits appear on the floor board under the long-time repeated friction impact of the desk legs, so that the cement floor board is irreversibly damaged.

Disclosure of utility model

In order to solve the defects of the prior desk, the utility model provides the noon break desk which has better performances and can be spliced adjacently.

In order to achieve the above purpose, the utility model adopts the following scheme:

The utility model provides a noon break desk that can adjacent concatenation, is including turning over board desk and hasp desk, turns over board desk and hasp desk main structure the same of both, and both include table frame and square table, and wherein, the table frame includes the table foot rest and puts the book case check, and square table sets up at table foot rest top, puts the book case check and sets up in the below of square table, characterized by:

the table foot rest comprises an upper table frame and a lower table frame, and the upper table frame is arranged on the lower table frame in an up-down lifting manner;

A square turning plate is arranged on the right side or the left side of the top of the turning plate desk; the upper edge of the square turning plate can be rotatably hinged on the upper table frame by 90 degrees through a hinge, the lower edge of the square turning plate is provided with a right-angle inserting plate, one side of the right-angle inserting plate is fixed on the back surface of the square turning plate, and the other side of the right-angle inserting plate is perpendicular to the edge of the right-angle inserting plate;

A hasp is arranged on the left side or the right side of the top of the upper desk frame of the hasp desk; the hasp is a bearing sheet with a groove punched in the middle, and is transversely arranged on the upper table frame; the grooves of the bearing sheets are matched with the right-angle plugboards in size, when the bearing sheets are spliced, the square overturning plates are overturned upwards for 90 degrees to be flush with the square desk plate of the hasp desk, the right-angle plugboards on the overturning plates are downwards inserted into the hasps of the hasp desk, and the adjacent overturning plates desk and the hasp desk are connected into a whole to form a noon break bed.

Further, the lower table frame comprises two lower foot frames which are arranged in parallel at left and right intervals, namely a left lower foot frame and a right lower foot frame; each lower foot rest comprises two hollow lower desk feet and a hollow grounding foot plate, and the two lower desk feet are respectively fixed at the two ends of the top surface of the grounding foot plate one by one to form an inverted U-shaped structure; the side wall of each upper table leg is provided with 1-2 opposite outer height adjusting holes which are distributed at intervals from top to bottom; a transverse reinforcing bar which is transversely arranged is arranged between the lower desk legs which are arranged behind the left lower foot rest and the right lower foot rest;

The upper table frame comprises 4 upper foot frames which are distributed and arranged in a front-back left-right manner, wherein the upper foot frames are respectively a left front upper foot frame, a left rear upper foot frame, a right front upper foot frame and a right rear upper foot frame, the left front upper foot frame and the left rear upper foot frame form a left upper foot frame, and the right front upper foot frame and the right rear upper foot frame form a right upper foot frame; each upper foot stand comprises an upper table leg and a hollow square tube for fixing the square table plate, and the upper table leg is fixed in the middle of the bottom surface of the hollow square tube to form a T-shaped structure; the side wall of the upper desk leg is provided with a plurality of opposite inner height adjusting holes which are distributed at intervals from top to bottom;

The left front upper foot rest, the left rear upper foot rest, the right front upper foot rest and the right rear upper foot rest are respectively sleeved and inserted in the lower table leg of the lower table frame in a one-to-one correspondence manner from top to bottom;

The outer height adjusting holes of the lower table leg are coaxially aligned with the corresponding inner height adjusting holes of the upper table leg, and the lower table leg is provided with a positioning pin penetrating through the outer height adjusting holes and the inner height adjusting holes.

When the height of the turnover plate desk or the hasp desk needs to be adjusted, the positioning pin is taken out, the relative high and low positions of the upper desk frame and the lower desk frame can be adjusted through the up-down lifting movement of the upper desk frame and the lower desk frame, and then the turnover plate desk or the hasp desk is fixed by the positioning pin. Therefore, the height of the desk is adjusted through the locating pins so as to adapt to students with different heights, for example, the heights of the high grade and the low grade are generally different, and the desk can be adjusted in the mode, so that the desk with one specification and model is universal in the high grade and the low grade, and convenient to manage and use.

Further, a protective rubber sleeve is nested at the upper end part of the lower table leg.

Further, the lower table leg, the transverse reinforcing bar and the upper table leg are hollow pipes with flat round corner structures made of hard metal materials, and the hollow square pipes and the hollow pipes are coated with rust-proof layers.

Further, the front and the top surfaces of the book placing grid are both open, the book placing grid is made of iron sheet, and the book placing grid is coated with a rust-proof layer; the top of the left, right and back faces of the book placing shelf is provided with an everting fixed edge, the fixed edge is provided with a plurality of fixed holes, and the book placing shelf is fixed below the square table plate through the fixed holes by bolts and is positioned between the left upper foot rest and the right upper foot rest of the upper table frame.

Further, the hollow square tube is provided with a plurality of table fixing holes for the self-tapping screws to pass through, and the left front upper foot rest, the left rear upper foot rest, the right front upper foot rest and the right rear upper foot rest of the upper table frame are all fixed on the bottom surface of the table fixing holes through the self-tapping screws passing through the connecting lugs.

Further, the two ends of the grounding foot plates are respectively sleeved with an anti-abrasion rubber sleeve, and the bottoms of the anti-abrasion rubber sleeves are provided with texture flat plates for increasing friction force with the floor. The contact area and the buffering of the desk foot and the floor can be increased by matching the grounding foot plate and the anti-abrasion rubber sleeve, the anti-abrasion rubber sleeve can also avoid hard friction with the ground, and the anti-abrasion rubber sleeve is convenient to replace, so that the floor is prevented from being worn, and the cement floor cannot be damaged irreversibly due to pits caused by long-term repeated friction and impact of the desk foot after long-term use.

Further, the length of the square table plate is larger than that of the table foot rest and the book placing case, one side of the square table plate is aligned with the side face of the table foot rest in the vertical direction, and the other side of the square table plate extends out in a hanging mode from the opposite other side; in the turnover plate desk, the side surface of the desk foot rest aligned with the square desk plate is the right side or the left side provided with the square turnover plate; in the hasp desk, the side surface of the desk foot rest aligned with the square desk plate is the left side or the right side provided with the hasp.

When the student noon break bed is used, the desks in the same row are adjacently arranged at intervals according to the sequence of the turnover plate desks and the hasp desks, when the student noon break, the square turnover plate of the turnover plate desks is turned over to the upper side and is inserted on the hasp of the hasp desks through the right-angle inserting plate, and the adjacent turnover plate desks and the hasp desks are sequentially connected into a whole to form the noon break bed. The length of the square turning plate is properly selected due to the holding of the square turning plate, the length of the spliced turning plate desk and the spliced hasp desk is greatly increased, and the student straightening double-foot support device can be suitable for students with higher heights.

From the above, compared with the prior art, the utility model has the following advantages: (1) Therefore, the universal compatibility is good, the heights of the flap desk and the hasp desk can be adjusted according to the heights of students, schools do not need to purchase desks with various specifications due to different heights of high and low grades of students, only one specification of desk needs to be purchased, the management is convenient, and the production of manufacturers is also convenient; (2) The length of a noon break bed formed by splicing can be increased by the square turning plates of the adjacent turning plate desks and the hasp desks, the length is enough, when the desk is laid down, feet are straightened, the desk is suspended outside the desk, and only a contracted gesture can be used for sleeping noon break, so that the desk is unfavorable for body development; (3) The contact area between the desk legs of the turnover plate desk and the hasp desk and the floor is large, the contact area between the desk legs and the floor is soft, the contact abrasion between the desk legs and the floor is almost reduced to zero, and the cement floor is not damaged. (4) the structure is scientific, simple and compact, and is easy to manufacture; the functions are more complete, the use is more convenient and practical; has great popularization value.

Drawings

Fig. 1 is a front view of a flap desk in accordance with a preferred embodiment of the present utility model.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a perspective view of fig. 1.

Fig. 4 is a bottom view of fig. 1.

Fig. 5 is a bottom view of the flap desk with the lower desk frame removed.

Fig. 6 is a front view of a desk with a buckle in accordance with a preferred embodiment of the present utility model.

Fig. 7 is a left side view of fig. 6.

Fig. 8 is a perspective view of fig. 6.

Fig. 9 is a bottom view of fig. 6.

Figure 10 is a bottom view of the flap desk with the lower desk frame removed.

Fig. 11 is a front view of the flap and snap chairs spliced to form a "noon break bed".

Reference numerals illustrate: 1-turning plate desk, 2-hasp desk, 3-desk frame, 4-square desk plate, 5-desk leg frame, 7-hasp, 8-square turning plate, 9-hinge, 10-right angle plugboard, 11-bearing sheet, 12-groove and 13-upper desk frame; 14-upper foot, 15-lower frame, 16-left lower foot rest, 17-right lower foot rest, 18-lower foot rest, 19-ground foot plate, 20-left front upper foot rest, 21-left rear upper foot rest, 22-right front upper foot rest, 23-right rear upper foot rest, 24-inner height adjusting holes, 25-locating pins, 26-protective rubber sleeves, 27-outer height adjusting holes, 30-bookcase placing grid, 31-hollow square tube, 33-anti-abrasion rubber sleeves, 34-texture flat plate and 35-lateral cushion blocks.

Detailed Description

The present utility model and its advantageous technical effects are described in further detail below with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1-11, the noon break desk which is preferably implemented by the utility model and can be spliced adjacently comprises a turning plate desk 1 and a hasp desk 2, wherein the main structures of the turning plate desk 1 and the hasp desk 2 are the same, and the turning plate desk 1 and the hasp desk 2 both comprise a desk frame 3 and a square desk plate 4, wherein the desk frame 3 comprises a desk foot rest 5 and a bookcase placing grid 30, the square desk plate 4 is arranged at the top of the desk foot rest 5, and the bookcase placing grid 30 is arranged below the square desk plate 4;

Referring to fig. 2 and 7, the table foot stand 5 includes an upper table frame 13 and a lower table frame 15, the upper table frame 13 being provided on the lower table frame 15 to be vertically movable;

Referring to fig. 1, a square turning plate 8 is arranged on the right side or the left side of the top of the turning plate desk 1; the upper edge of the square turning plate 8 is rotatably hinged on the upper table frame 13 by a hinge 9 by 90 degrees, the lower edge of the square turning plate 8 is provided with a right-angle inserting plate 10, one side of the right-angle inserting plate 10 is fixed on the back of the square turning plate 8, and the other side is perpendicular to the edge of the right-angle inserting plate 10;

Referring to fig. 6, a hasp 7 is arranged on the left side or the right side of the top of the upper desk frame 13 of the hasp desk 2; the hasp 7 is a bearing sheet 11 with a groove 12 punched in the middle, and the hasp 7 is transversely arranged on the upper table frame 13; the groove 12 of the bearing sheet 11 is matched with the size of the right-angle plugboard 10, when in splicing, the square turning plate 8 is turned upwards for 90 degrees to be flush with the square desk plate 4 of the hasp desk 2, the right-angle plugboard 10 on the turning plate desk 1 is downwards inserted into the hasp 7 of the hasp desk 2, and the adjacent turning plate desks 1 and the hasp desks 2 are connected into a whole to form a noon break bed.

Referring to fig. 1, 3 and 6 and 8, preferably, in order to increase the overall stability of the noon break desk, the lower desk frame 15 includes two lower leg frames, respectively a left lower leg frame 16 and a right lower leg frame 17, which are arranged in parallel at a left-right interval; each lower foot rest comprises two hollow lower desk feet 18 and a hollow grounding foot plate 19, wherein the two lower desk feet 18 are respectively fixed at the two ends of the top surface of the grounding foot plate 19 in a front-back manner to form an inverted U-shaped structure; referring to fig. 2 and 7, the side wall of each upper leg 14 is provided with 2 through outer height adjusting holes 27 which are spaced from top to bottom; a transverse reinforcing bar which is transversely arranged is arranged between the lower desk legs 18 which are arranged at the rear of the left lower foot rest 16 and the right lower foot rest 17;

The upper desk frame 13 comprises 4 upper foot frames which are distributed and arranged in a front-back left-right manner, wherein the upper foot frames are respectively a left front upper foot frame 20, a left rear upper foot frame 21, a right front upper foot frame 22 and a right rear upper foot frame 23, the left front upper foot frame 20 and the left rear upper foot frame 21 form a left upper foot frame, and the right front upper foot frame 22 and the right rear upper foot frame 23 form a right upper foot frame; each upper foot stand comprises an upper table leg 14 and a hollow square tube 31 for fixing the square table plate 4, and the upper table leg 14 is fixed in the middle of the bottom surface of the hollow square tube 31 to form a T-shaped structure; referring to fig. 2 and 7, the side wall of the upper leg 14 is provided with a plurality of through-holes 24 spaced from top to bottom;

The left front upper foot rest 20, the left rear upper foot rest 21, the right front upper foot rest 22 and the right rear upper foot rest 23 are respectively sleeved in the lower table leg 18 of the lower table frame 15 in a one-to-one correspondence manner from top to bottom;

The outer height adjustment holes 27 of the lower leg 18 are coaxially aligned with the corresponding inner height adjustment holes 24 of the upper leg 14, and the lower leg 18 is provided with a locating pin 25 extending through the outer height adjustment holes 27 and the inner height adjustment holes 24. The positioning pin 25 is a conventional part, and may be a spring pin, a threaded pin formed by a screw and a nut, or a bolt with other structures, specifically, an appropriate positioning pin 25 may be selected according to actual situations, and in this embodiment, a threaded pin is selected. When the desk is used, all the positioning pins 25 can be pulled out according to the needs, the relative heights of the lower desk leg 18 and the upper desk leg 14 are adjusted up and down, the outer height adjusting holes 27 of the lower desk leg 18 are simultaneously aligned with the corresponding inner height adjusting holes 24 of the upper desk leg 14 in a coaxial mode, and then the positioning pins 25 are inserted back, so that the height adjustment of the noon break desk can be completed. When the noon break bed is formed by splicing, the turnover plate desk 1 and the hasp desk 2 must be matched for use.

Preferably, the upper ends of the lower legs 18 are nested with protective sleeves 26 for aesthetic and safety reasons.

Preferably, in order to reduce the weight and increase the sense of thickness without affecting the strength, the lower leg 18, the horizontal reinforcing bars and the upper leg 14 are hollow tubes of flat rounded structures made of hard metal materials, and the hollow square tubes 31 and the hollow tubes are covered with a rust-proof layer.

Preferably, the front and the top surfaces of the book placing lattice 30 are both open, the book placing lattice 30 is made of iron sheet, and the rust-proof layer is coated on the book placing lattice 30; the top of the left, right and back faces of the book placing shelf 30 is provided with an everting fixing edge, a plurality of fixing holes are arranged on the fixing edge, and the book placing shelf 30 is fixed below the square table plate 4 through the fixing holes by bolts and is positioned between the left upper foot rest and the right upper foot rest of the upper table frame 13.

Preferably, the hollow square tube 31 is provided with a plurality of table fixing holes through which tapping screws pass, and the left front upper foot rest 20, the left rear upper foot rest 21, the right front upper foot rest 22 and the right rear upper foot rest 23 of the upper table frame 13 are all fixed on the bottom surfaces of the table fixing holes through the tapping screws passing through the connecting lugs. In this embodiment, the square table 4 and the square turning plate 8 are preferably made of wood materials.

Preferably, in order to reduce hard contact buffer and sliding between the noon break desk and the floor, the two ends of the grounding foot plate 19 are sleeved with an anti-abrasion rubber sleeve 33, and the bottom of the anti-abrasion rubber sleeve 33 is provided with a texture flat plate 34 for increasing friction force with the floor.

Preferably, in order to facilitate the splicing and not affect the layout of all parts of the noon break desk, the length of the square table 4 is longer than the lengths of the table foot rest 5 and the book placing grid 30, one side of the square table 4 is aligned with the vertical direction of the side surface of the table foot rest 5, and the other side of the square table 4 is suspended and extended from the opposite side surface; in the turnover plate desk 1, the side surface of the desk foot rest 5 aligned with the square desk plate 4 is the right side or the left side provided with the square turnover plate 8; in the hasp desk 2, the side surface of the desk foot rest 5 aligned with the square desk plate 4 is the left side or the right side provided with the hasp 7.

Preferably, in order to reduce the cross-sectional size of the hollow square tube 31 of the upper foot stool, the hinge 9 and the buckle 7 are connected with the left outer side or the right outer side of the upper table frame 13 through the lateral cushion block 35.

Preferably, the number of the hinges 9 on the turnover plate desk 1 is 2, and the 2 hinges 9 are distributed on the left side or the right side of the back surface of the lower part of the square turnover plate 8 at intervals; correspondingly, the number of the buckles 7 on the buckle desk 2 is 2, and the 2 buckles 7 are distributed on the right or the left of the upper desk frame 13 at intervals; the edges of the right-angle plugboards 10 and the corners of the bearing sheets 11 are smooth transition angles.

Referring to fig. 11, the splicing and dismantling method of the noon break bed is as follows: the desks in the same row are adjacently arranged according to the sequence of the turnover desk 1 and the hasp desk 2, and one side of a square turnover plate 8 arranged on the turnover desk 1 is arranged opposite to one side of a hasp 7 arranged on the hasp desk 2; when students are in noon break, the square turning plate 8 of the turning plate desk 1 is turned upside down and is inserted on the hasp 7 of the hasp desk 2 through the right-angle inserting plate 10, and the adjacent turning plate desks 1 and the hasp desks 2 are sequentially connected into a whole to form a noon break bed. The length of the square turning plate 8 is properly selected due to the holding of the square turning plate 8, so that the length of the spliced turning plate desk 1 and the hasp desk 2 is greatly increased, and the student with higher height can be adapted to the straightening of the two-leg support. The novel noon nap chair is matched with the noon nap chair which can be spliced adjacently and applied by the applicant in a matched manner, and the problem of noon nap of students in a class is perfectly solved.

The utility model is not limited to the embodiments disclosed and described above, but rather, it is intended to cover modifications and variants of the utility model which fall within the scope of the appended claims, depending on the description and the specific examples.

Claims (10)

1. The utility model provides a noon break desk that can adjacent concatenation, is including turning over board desk and hasp desk, turns over board desk and hasp desk main structure the same of both, and both include table frame and square table, and wherein, the table frame includes the table foot rest and puts the book case check, and square table sets up at table foot rest top, puts the book case check and sets up in the below of square table, characterized by:

the table foot rest comprises an upper table frame and a lower table frame, and the upper table frame is arranged on the lower table frame in an up-down lifting manner;

A square turning plate is arranged on the right side or the left side of the top of the turning plate desk; the upper edge of the square turning plate can be rotatably hinged on the upper table frame by 90 degrees through a hinge, the lower edge of the square turning plate is provided with a right-angle inserting plate, one side of the right-angle inserting plate is fixed on the back surface of the square turning plate, and the other side of the right-angle inserting plate is perpendicular to the edge of the right-angle inserting plate;

A hasp is arranged on the left side or the right side of the top of the upper desk frame of the hasp desk; the hasp is a bearing sheet with a groove punched in the middle, and is transversely arranged on the upper table frame; the grooves of the bearing sheets are matched with the right-angle plugboards in size, when the bearing sheets are spliced, the square overturning plates are overturned upwards for 90 degrees to be flush with the square desk plate of the hasp desk, the right-angle plugboards on the overturning plates are downwards inserted into the hasps of the hasp desk, and the adjacent overturning plates desk and the hasp desk are connected into a whole to form a noon break bed.

2. The adjacently spliced noon break desk of claim 1, characterized in that: the lower table frame comprises two lower foot frames which are arranged in parallel at left and right intervals, namely a left lower foot frame and a right lower foot frame; each lower foot rest comprises two hollow lower desk feet and a hollow grounding foot plate, and the two lower desk feet are respectively fixed at the two ends of the top surface of the grounding foot plate one by one to form an inverted U-shaped structure; the side wall of each upper table leg is provided with 1-2 opposite outer height adjusting holes which are distributed at intervals from top to bottom; a transverse reinforcing bar which is transversely arranged is arranged between the lower desk legs which are arranged behind the left lower foot rest and the right lower foot rest;

The upper table frame comprises 4 upper foot frames which are distributed and arranged in a front-back left-right manner, wherein the upper foot frames are respectively a left front upper foot frame, a left rear upper foot frame, a right front upper foot frame and a right rear upper foot frame, the left front upper foot frame and the left rear upper foot frame form a left upper foot frame, and the right front upper foot frame and the right rear upper foot frame form a right upper foot frame; each upper foot stand comprises an upper table leg and a hollow square tube for fixing the square table plate, and the upper table leg is fixed in the middle of the bottom surface of the hollow square tube to form a T-shaped structure; the side wall of the upper desk leg is provided with a plurality of opposite inner height adjusting holes which are distributed at intervals from top to bottom;

The left front upper foot rest, the left rear upper foot rest, the right front upper foot rest and the right rear upper foot rest are respectively sleeved and inserted in the lower table leg of the lower table frame in a one-to-one correspondence manner from top to bottom;

The outer height adjusting holes of the lower table leg are coaxially aligned with the corresponding inner height adjusting holes of the upper table leg, and the lower table leg is provided with a positioning pin penetrating through the outer height adjusting holes and the inner height adjusting holes.

3. The adjacently spliced noon break desk of claim 2, characterized in that: the upper end part of the lower table leg is nested with a protective rubber sleeve.

4. The adjacently spliced noon break desk of claim 2, characterized in that: the lower table leg, the transverse reinforcing bar and the upper table leg are hollow tubes with flat round corner structures made of hard metal materials, and rust-proof layers are coated outside the hollow square tubes and the hollow tubes.

5. The adjacently spliced noon break desk of claim 2, characterized in that: the front and the top surfaces of the book placing grid are both open, the book placing grid is made of iron sheets, and the book placing grid is coated with a rust-proof layer; the top of the left, right and back faces of the book placing shelf is provided with an everting fixed edge, the fixed edge is provided with a plurality of fixed holes, and the book placing shelf is fixed below the square table plate through the fixed holes by bolts and is positioned between the left upper foot rest and the right upper foot rest of the upper table frame.

6. The adjacently spliced noon break desk of claim 2, characterized in that: the hollow square tube is provided with a plurality of table fixing holes for the self-tapping screws to pass through, and the left front upper foot rest, the left rear upper foot rest, the right front upper foot rest and the right rear upper foot rest of the upper table frame are all fixed on the bottom surface of the table fixing holes through the self-tapping screws passing through the connecting lugs.

7. The adjacently spliced noon break desk of claim 2, characterized in that: the two ends of the grounding foot plates are respectively sleeved with an anti-abrasion rubber sleeve, and the bottoms of the anti-abrasion rubber sleeves are provided with texture flat plates for increasing friction force with the floor.

8. The noon break desk of any one of claims 1-7 that is capable of being adjacently spliced, wherein: the length of the square table plate is larger than that of the table foot rest and the book placing case, one side of the square table plate is aligned with the side face of the table foot rest in the vertical direction, and the other side of the square table plate extends out in a hanging manner from the opposite side face; in the turnover plate desk, the side surface of the desk foot rest aligned with the square desk plate is the right side or the left side provided with the square turnover plate; in the hasp desk, the side surface of the desk foot rest aligned with the square desk plate is the left side or the right side provided with the hasp.

9. The adjacently spliced noon break desk of claim 8, characterized in that: the hinge and the hasp are connected with the left outer side or the right outer side of the upper table frame through the lateral cushion block.

10. The adjacently spliced noon break desk of claim 9, characterized in that: the number of the hinges on the turnover plate desk is 2, and the 2 hinges are distributed on the left side or the right side of the back surface of the lower part of the square turnover plate at intervals; correspondingly, the number of the hasps on the hasps desk is 2, and the 2 hasps are distributed on the right side or the left side of the upper desk frame at intervals; and the edges of the right-angle plugboards and the corners of the bearing sheets are smooth transition angles.