CN104586062B - A kind of folding floorboard tables and chairs module - Google Patents

Abstract

The invention discloses a foldable floor integrated table and chair module. The box is equipped with a folding device as a table or a chair or the ground. When not in use, the top plate of the box is used as a floor. When in use, the folding device is unfolded as a table or a chair. Folding support switch parts; small floor, large floor, support plate and box rear side plate form a planar four-bar structure; when unfolded, the small floor and large floor are located on the top of the box as the expanded floor The junction of the block floor and the large block floor is supported by a folding support switch piece. The invention can realize mutual conversion and modular processing among tables, chairs and floors, and solves the problem of pits left on the ground by similar ground lifting mechanisms in the past; the conversion is convenient and has a high folding rate, and the realization of desks and chairs in classrooms The changes in the layout are more attractive, and the different functions and uses of the halls and rooms are realized through the combination and transformation of modules.

Description

A foldable floor integrated table and chair module

technical field

The invention relates to a modular device, in particular to a foldable floor integrated table and chair module, which realizes mutual conversion and modularization among tables, chairs and floors.

Background technique

In school study and life, we will meet various classrooms: there are ordinary classrooms with desks and chairs arranged neatly forward; there are discussion classrooms where everyone can discuss face to face; of course, there are many possible audiences, not very A wide range of non-conventional classrooms, such as those used in moot courts in law classes, or debates or presentations in business schools. For the requirements of the above classrooms, the current solutions are generally to build special classrooms or temporarily move tables and chairs to meet the required requirements. This has led to the fixed form of professional classroom tables and chairs used in university classrooms, resulting in single-function classrooms, which are idle in normal times, resulting in a waste of teaching resources, and in university classrooms, many teacher-student interactions and group presentations are required. In the link, the limitation of classroom tables and chairs makes the entire display space unable to meet the needs of students, which greatly affects the teaching effect.

Contents of the invention

In order to solve the problems existing in the background technology, the present invention proposes a foldable floor integrated table and chair module, which has a high folding rate metamorphic mechanism design, and is a folding table and chair with a high shrinkage ratio. Tables and chairs are folded and changed to realize changes in the layout of tables and chairs in the classroom, so as to realize different functions of the classroom.

The technical scheme adopted in the present invention is:

The present invention comprises the box body that is installed in the ground floor, and the folding device that is used as table or chair or ground is housed in the box body, and the top board of box body is used as floor when not in use, and folding device is unfolded as table or chair when in use, and folding device includes Rod type motion support mechanism, lifting mechanism, table and chair mechanism and folding support switch parts;

Connecting rod type motion support mechanism: small floor, large floor and support plate are installed in the box, one end of the small floor is hinged to the top of the rear side plate of the box through a rotating shaft, and the other end of the small floor is hinged to one end of the large floor , the bottom surface of the middle part of the large floor is hinged to one end of the support plate, and the other end of the support plate is hinged to the bottom surface of the box, so that a planar four-bar structure is formed by the small floor, the large floor, the support plate and the rear side plate of the box; the bottom surface of the support plate is connected to A buffer spring is installed between the bottom surface of the box to prevent the support plate from being stuck; when unfolded and used, the small floor and the large floor are located on the top of the box as the expanded floor, and the front and rear sides pass through the rear side of the box and the floor respectively. The support plate is supported, and the connection between the small floor and the large floor is supported by a folding support switch;

Lifting mechanism: including desktop guide rails and inner lifting parts and outer lifting parts installed in parallel with the desktop guide rails. Two parallel desktop guide rails are symmetrically installed on both sides of the bottom surface of the top plate of the cabinet. The inner lifting parts include inner square tubes and inner square rods. The bottom surface of the top plate outside the two desktop guide rails is symmetrically fixed with an inner square tube, and the inner square tube is covered with an inner square rod; the outer lifting part includes an outer square tube and an outer square rod, and an outer square tube is symmetrically installed on the outside of the two inner square tubes. The outer square tube is fixedly connected with the inner square tube through the fixed arm, and the outer square tube is covered with an outer square rod; the bottom of the inner square rod and the outer square rod are fixed on the small floor through the bottom support seat, and the outer square tube and the outer square rod There is a guide groove on the inner side;

Table and chair mechanism: including the table and chair panel, the lower support shaft, the upper support shaft and two oblique support rods, the rear end of the table and chair panel is connected with two desktop guide rail joint blocks, and the desktop guide rail shaft on the desktop guide rail joint block is embedded in the desktop guide rail Among them, profile hinge blocks are symmetrically installed on both sides of the bottom surface of the table and chair panel, the upper support shaft is connected between the two profile hinge blocks, and the two ends of the upper support shaft are respectively hinged with the two ends of the lower support shaft through the inclined support rods on both sides. , both ends of the upper support shaft are covered with torsion springs for elastic hinges, and both ends of the lower support shaft are covered with guide sliders, and the guide sliders are embedded in the guide grooves of the outer tube and outer rod on each side And move along the guide groove.

The folding support switch part: includes an upper folding press lever, a buckle spring, a buckle sleeve, a floor folding square tube, a lower folding press lever, a folding button press block, a push rod piece and a buckle block; two buckle sleeves They are respectively fixedly installed on the box side panels on both sides of the connection between the small floor and the large floor. The buckle block and the buckle spring are installed in the buckle sleeve; the floor folded square tube is installed between the two buckle sleeves, and the floor The folding square tube is fixedly connected with the bottom surface of the large floor. The folding button pressing block and push rods on both sides of the folding button pressing block are installed in the floor folding square tube. The folding button pressing block is located in the center of the floor folding square tube, and the upper end of the folding button pressing block Connected with the lower folding lever, the lower folding lever passes through the floor folding square tube and the large floor and is hinged with the upper folding lever. When unfolded and used, the buckle blocks on both sides are elastically squeezed into the floor by the buckle spring In the folded square tube, the push rods on both sides are used to squeeze the folded button pressing block in the center.

The push rod part includes a push rod and a push rod inner block and a push rod outer block fixed at both ends of the push rod. The two push rod inner blocks are respectively located on both sides of the folding button pressing block, and the folding button pressing block is an inverted trapezoid Structure, the side of the inner block of the push rod that is in contact with the pressing block of the folding button is an upwardly inclined slope.

The other end of the small floor and one end of the large floor are hinged through the first hinge, the first hinge is fixed by cross-recessed countersunk head self-tapping screws, and the bottom surface of the middle part of the large floor is hinged with one end of the support plate through the second hinge , the other end of the support plate is hinged on the bottom surface of the box body through the third hinge.

The side of the guide groove of the outer square tube is provided with a table limit groove for engaging and fixing the guide slider. When the guide slider is engaged with the table limit groove, the table and chair panel is used as a tabletop board.

The side of the guide groove of the outer square rod is provided with a chair limit groove for engaging and fixing the guide slider. When the guide slider is engaged with the chair limit groove, the table and chair panel is used as a chair panel.

The guide rail groove on the top of the desktop guide rail has a bent part, and the bent part is bent toward the top plate.

A limit hole is installed on the side of the upper part of the inner square rod, and a limit button and a button spring are installed in the limit hole; The bit hole tops the bottom end of the inner square pipe.

The bottom of the two buckle sleeves is respectively provided with a support column, the bottom of the support column is fixed to the bottom surface of the box body through an angle iron, and the top of the support column is pushed against the bottom end of the buckle sleeve for support and positioning.

The beneficial effects of the present invention are:

The folding tables and chairs with high shrinkage ratio of the present invention can be unfolded and folded by a simple table and chair folding device, and can be used as floors, tables or chairs, so as to realize changes in the layout of tables and chairs in the classroom, through the combination of multiple modules and The transformation realizes the different functions and uses of the hall.

The switch between the three states of the present invention is convenient, and has a higher folding rate, which solves the problem of pits left on the ground by similar ground raising mechanisms in the past, and is simple and has good ornamental value.

Description of drawings

Fig. 1 is the front view of the present invention as the state of chair after unfolding.

Fig. 2 is the side view of table state and chair state of the present invention, and its dotted line part represents the position of table and chair mechanism when table state.

Fig. 3 is a partial sectional view of A-A in Fig. 2 .

Fig. 4 is a rear view of the present invention as a floor after being folded.

Fig. 5 is a B-B sectional view in Fig. 4 .

Fig. 6 is a partial enlarged view of the limit spring mechanism at C in Fig. 1 .

Fig. 7 is a three-dimensional wireframe diagram of the state of the chair of the present invention.

Fig. 8 is a three-dimensional wireframe diagram of the state of the table of the present invention.

Fig. 9 is a three-dimensional wireframe diagram of the state of the floor of the present invention.

Fig. 10 is one of the schematic diagrams of the usage and installation state of the tables and chairs of the two modules of the present invention.

Fig. 11 is one of the schematic diagrams of the use and installation state of the tables and chairs of the two modules of the present invention.

Fig. 12 is a schematic diagram of a use scene of a common classroom for listening to lectures built by using the modules of the present invention.

Fig. 13 is a schematic diagram of a use scene in which all tables and chairs are stored as an activity room according to the present invention.

Fig. 14 is a schematic diagram of a usage scene of a seminar classroom constructed by adopting the modules of the present invention.

Fig. 15 is a schematic diagram of a use scene of a debate classroom constructed by adopting the modules of the present invention.

Fig. 16 is a schematic diagram of a use scene of a party classroom constructed by adopting the modules of the present invention.

In the figure: 1—inner square rod, 2—outer square rod, 3—lower support shaft, 4—upper support shaft, 5—torsion spring, 6—hex nut, 7—limit button, 8—button spring, 9— Guide slider, 10—outer square tube, 11—inner square tube, 12—desktop guide rail, 13—limit button seat, 15—bottom support seat, 16—box body, 17—table shape, 18—chair shape, 19 —Second hinge, 20—Third hinge, 22—Small floor, 23—Snap spring, 24—Snap sleeve, 25—Folding square tube on the floor, 26—Down folding lever, 27—Folding button press Block, 28—inner block of push rod, 29—push rod, 30—outer block of push rod, 31—buckle block, 36—joint block of desktop guide rail, 37—axis of desktop guide rail, 38—fixed arm, 39—top plate, 40 —Cross recessed countersunk head screw, 41—table and chair panel, 42—profile hinge block, 43—inclined support rod, 44—upward folding press rod, 45—pin shaft, 48—first hinge, 49—large floor, 50—axis of rotation, 51—support column, 52—support plate, 53—cross recessed pan head screw, 54—angle iron, 55—buffer spring.

detailed description

The present invention will be further described below in conjunction with drawings and embodiments.

As shown in Fig. 1 and Fig. 7 ~ Fig. 9, the present invention comprises the box body 16 that is installed in the ground floor, and the folding device that is used as table or chair or ground is housed in the box body 16, and the top board 39 of box body 16 serves as when not using. The floor, when in use, the folding device is unfolded as a table or a chair. The folding device includes a link type motion support mechanism, a lifting mechanism, a table and chair mechanism and a folding support switch. The lifting mechanism is installed on the link type motion support mechanism, and the table and chair mechanism is installed On the lifting mechanism, it moves up and down when unfolding.

As shown in Fig. 1, Fig. 2 and Fig. 5, link type motion support mechanism: a small piece of floor 22, a large piece of floor 49 and a support plate 52 are installed in the box body 16, as shown in Fig. 4, one end of the small piece of floor 22 Hinged on the top of the box body 16 rear side plate by the rotating shaft 50, the other end of the small floor 22 is hinged with one end of the large floor 49, the bottom surface of the middle part of the large floor 49 is hinged with one end of the support plate 52, and the other end of the support plate 52 is hinged on the box. Body 16 inner bottom surface, thereby form planar four-bar structure by small block floor 22, large block floor 49, support plate 52 and box body 16 rear sides, as shown in Figure 5; Support plate 52 bottom surfaces and box body 16 inner bottom surfaces A buffer spring 55 for preventing the support plate from being stuck is installed between them.

When unfolding and using, the small floor 22 and the large floor 49 are positioned at the top surface of the box body 16 as the expanded floor, and the front and rear sides are respectively supported by the rear side plate of the box body 16 and the support plate 52, and the small floor 22 and the large floor 49 joints are supported by folding support switch parts; the sum of the areas of small floor 22 and large floor 49 equals the top plate 39 area of casing 16, and small floor 22 and large floor 49 have replaced the position of top plate 39.

As shown in Figure 1, Figure 2 and Figures 7 to 9, the lifting mechanism: includes the desktop guide rail 12 and the inner and outer lifting parts installed in parallel with the desktop guide rail 12, and the left and right sides of the bottom surface of the top plate 39 of the box body 16 are installed symmetrically There are two parallel desktop guide rails 12, the direction of the desktop guide rails 12 is perpendicular to the rotation axis 50, the desktop guide rails 12 are fixedly connected with the top plate 39 through the cross recessed countersunk head screws 40, and the inner lifting parts include the inner square tube 11 and the inner square rod 1, two The top plate 39 bottom surface of a desktop guide rail 12 outsides is symmetrically fixedly installed with an inner square pipe 11, and the inner square pipe 11 is covered with an inner square rod 1; the outer lifter includes an outer square pipe 10 and an outer square rod 2, and two inner square pipes 11 Outer square pipe 10 is installed symmetrically on the outside, there is a distance between outer square pipe 10 and the bottom surface of top plate 39, outer square pipe 10 is fixedly connected with inner square pipe 11 by fixed arm 38, and outer square pipe 10 is sheathed with outer square rod 2; The bottoms of the inner square bar 1 and the outer side bar 2 are all fixed on the small floor 22 by the bottom support seat 15, and the inboards of the outer square pipe 10 and the outer square bar 2 have guide grooves.

As shown in Figure 1, Figure 2 and Figures 7 to 9, the table and chair mechanism: includes a table and chair panel 41, a lower support shaft 3, an upper support shaft 4 and two inclined support rods 43, and the rear end of the table and chair panel 41 is connected to There are two desktop guide rail joint blocks 36, the desktop guide rail shaft 37 on the desktop guide rail joint block 36 is embedded in the desktop guide rail 12 and slides along the desktop guide rail 12, the left and right sides of the bottom surface of the table and chair panel 41 are symmetrically equipped with profile hinge pieces 42, and the upper support The shaft 4 is connected between two profile hinge pieces 42, and the two ends of the upper support shaft 4 are respectively hinged with the two ends of the lower support shaft 3 through the oblique support rods 43 on both sides, and the two ends of the upper support shaft 4 are covered with elastic hinges. The torsion spring 5, the two sides of the torsion spring 5 respectively support the bottom surface of the table and chair panel 41 and the inclined support rod 43, the torsion spring 5 is axially fixed on the two ends of the upper support shaft 4 through the hex nut 6, and the two ends of the lower support shaft 3 All are covered with guide slider 9 on the part, and guide slider 9 embeds in the guide groove of the outer square tube 10 of each side and the outer square rod 2 and moves along the guide groove. The guide slider 9 is divided into a large end and a small end, the small end faces outwards, the small end of the diameter snaps into the guide groove, and the large end is used for spacing.

As shown in Figure 3, the folding support switch part: includes an upper folding pressing rod 44, a buckle spring 23, a buckling sleeve 24, a floor folding square tube 25, a lower folding pressing rod 26, a folding button pressing block 27, a pin shaft 45, Push rod piece and buckle block 31. Two buckle sleeves 24 are respectively fixedly installed on the box body 16 side plates on both sides of the junction of the small piece of floor 22 and the large piece of floor 49, and there is a support column 51 to support the bottom. Buckle spring 23; Floor folding square pipe 25 is installed between two buckle sleeves 24, and floor folding square pipe 25 is fixedly connected with bulk floor 49 bottom surfaces, and floor folding square pipe 25 is equipped with folding button pressing block 27 and is positioned at folding button The push rod parts on both sides of the pressing block 27, the folding button pressing block 27 is located in the center of the floor folding square pipe 25, the upper end of the folding button pressing block 27 is connected with the lower folding pressing rod 26, and the lower folding pressing rod 26 passes through the floor folding square pipe 25 After the bulk floor 49 is hinged with the upper folding lever 44, the lower folding lever 26 is hinged with the upper folding lever 44 through the bearing pin 45. When the whole module is unfolded and used, the buckle blocks 31 on both sides are elastically squeezed into the floor folded square tube 25 by the buckle spring 23, and the folding button press block 27 in the center is pressed by the respective push rods on both sides to rise. At this time, the buckle block 31 and the floor folded square tube 25 are used as a supporting structure to support the large floor 49 . If the folding button briquetting block 27 is pressed, the push rod part is pushed out to release the buckle block 31 in the floor folding square tube 25, thereby allowing the table and chairs to be collected into the floor.

As shown in Figure 3, the push rod part includes a push rod 29, a push rod inner block 28 and a push rod outer block 30 fixedly installed at both ends of the push rod 29, and the two push rod inner blocks 28 are respectively located at the two ends of the folding button pressing block 27. Side, the push rod outer block 30 is connected with the buckle blocks 31 on both sides; the folding button pressing block 27 is an inverted trapezoidal structure, and the side of the push rod inner block 28 in contact with the folding button pressing block 27 is an upwardly inclined slope.

As shown in Figure 3, in the state of the desk and chair, the buckle block 31 can extend into the floor folding square tube 25 installed at the bottom of the floor due to the spring 32 behind it, thereby positioning the folded floor. The whole device is re-entered into the floor, so only the folding button pressing block 27 is pressed down through the lower folding lever 26, and the push rod is pushed to make the buckle 31 withdraw from the floor folding square tube 25, so that the whole device can be moved again. Floor folding square tube 25 lengths and small piece of floor 22 are as wide. The inclination angle of the trapezoidal slider in the middle is about 45 degrees to ensure accurate calculation and uniform force.

The other end of the small floor 22 and one end of the large floor 49 are hinged by the first hinge 48, and the first hinge 48 is fixed by a cross recessed countersunk head self-tapping screw, and the bottom surface of the middle part of the large floor 49 and one end of the support plate 52 pass through the second hinge. The hinge 19 is hinged, and the other end of the support plate 52 is hinged to the inner bottom surface of the box body 16 through the third hinge 20 .

The side of the guide groove of the outer square pipe 10 is provided with a table limiting groove for engaging and fixing the guide slider 9. When the guide slider 9 is engaged on the table limiting groove, the table and chair panel 41 is used as a desktop board. The side of the guide groove of the outer square rod 2 is provided with a chair limit groove for engaging and fixing the guide slider 9. When the guide slider 9 is engaged on the chair limit groove, the table and chair panel 41 is used as a chair panel. Multiple heights can be set in order to cater to people of different heights, then several limit grooves can be correspondingly established on the guide grooves of the outer square pipe 10 and the outer square bar 2.

The rail groove at the top of the desktop rail 12 has a bent portion, and the bent portion is bent toward the top plate 39 .

As shown in Figure 6, a limit hole is installed on the upper side of the inner square rod 1, and a limit button 7 and a button spring 8 are installed in the limit hole; when unfolded, one end of the limit button 7 is pushed against the inner wall of the inner square rod 1 by the button spring 8 , the other end of the limit button 7 stretches out the limit hole and tops the bottom end of the inner square tube 11, similar to the telescopic mechanism of the central rod of an umbrella.

Two buckle sleeves 24 below are respectively provided with a support column 51, the bottom of the support column 51 is fixed with the bottom surface of the box body 19 with a cross recessed pan head screw 53 through the angle iron 54, and the top of the support column 51 is supported on the bottom end of the buckle sleeve 24 position.

In the present invention, the box-type shell of the box is used for protection and support, the link-type motion support mechanism is used for turning and supporting the ground, the lifting mechanism and the table and chair mechanism are used for completing the conversion, and the folding support switch is used for switching and completing the floor. The self-locking, limit button is used for the self-locking position of the table and chair transformation.

The whole folding device is housed in the box of the present invention to form a floor module, and the top board 39 plays the role of the floor; the top board 39 is turned up, and the internal folding device moves, and the small floor and the large floor form a new floor, and the folding supports the switch parts place, the new floor is fixed by the buckle block 31, the lifting mechanism is fixed by the limit button, and the guide slider 9 in the table and chair mechanism enters the chair limit groove to form a beautiful chair; Rising, guide slider 9 enters the table limit groove, forms a practical, attractive in appearance table.

The present invention has three different working states, which are respectively: the floor state where the folding device is placed under the floor, the chair state after the folding device is unfolded and lifted, and the table state after the table and chair mechanism is further lifted. As shown in Fig. 4, Fig. 5, Fig. 7, Fig. 8, and Fig. 9, the present invention is a slightly flat rectangular box body in the floor state, and the table-chair-floor can be realized by a simple lifting action. Transform each other to complete the transformation of classroom functions.

The present invention can realize the automatic filling of the ground when the main part of the table and chair is raised: when the top plate (i.e. the backrest) 39 rotates around the rotation axis 50, the planar four-bar mechanism will generate linkage, by calculating the size of the two floors 49, 22 and The length of the support plate 52 can realize that when the original floor top plate 39 rotates 90°, the two floors are just flush with the ground.

Fig. 1, Fig. 2 and Fig. 5 can reflect the folding mechanism of the table and chair part, and the lifting of the top plate 39 is realized by the expansion and contraction of the sleeve rod. There is a pair of inner and outer rod square bars and inner and outer square pipes 1, 2 and 11, 10, which are arranged on both sides of the tables and chairs, and the vertical height of the tables and chairs can be changed by stretching. Two groups of desktop rails 12 are fixedly installed on the top board 39 as the original floor. One end of the table and chair panel 41 is installed with the desktop track roller shaft 37 and the fixedly connected desktop track 12 on the backrest top plate 39 through the desktop track joint block 36. The guide slider that the other end is connected can slide freely on the guide rail guide groove of sleeve 2,10 outer square bar 2 and outer square pipe 10. Through the two pairs of boss roller guide sliders 39 on the lower support shaft 3 of the inclined rod pin, sliding in the guide grooves of the two sets of side track outer tubes and outer square bars respectively, the table and chair surface 41 and the original floor can be realized. That is, the angle of the backrest 39 changes to achieve the purpose of shrinking the lateral dimension.

Concrete work process of the present invention is as follows:

1. The process of transforming from floor state to chair state is as follows:

Lifting the top plate 39 upwards can be decomposed into the rotation of the top plate 39 around the rotation axis 50 and the rise along the inner square rod 1 and the outer square rod 2 . The rotation of the top plate 39 around the rotation axis 50 can drive the planar four-bar mechanism of the small floor 22-large floor 49-support plate 52-cabinet 16 to move, and when the top plate 39 rotated 90 degrees to the vertical position, the small floor 22 It is just in a horizontal position with the large floor 49, thereby filling up the lack of the floor after the top plate 39 is lifted, and at the same time, the buckle block 31 at the bottom is pressed into the floor folding square tube 25 to position the large floor 49. The rise of the top plate 39 along the inner square rod 1 and the outer square rod 2 can make the table and chair mechanism move synchronously with it. Due to the existence of the torsion spring 5, the guide slider 9 is always in close contact with the outer square rod 2. The guide groove is provided with a seat limit recess On one side of the groove, when the top plate 39 rises to the set height, the limit button 7 pops up from the limit hole opened on the outside of the inner square tube 11, and the top plate 39 is positioned, while the guide slider 9 is pressed into the outer surface by the torsion spring 5 In the chair limit groove of the square rod 2, the conversion from the floor state to the chair state is completed.

2. The process of transforming from chair state to table state is as follows:

Lift the table and chair panel 41 up to the height of the desktop, the desktop guide rail shaft 37 enters the uppermost bending part of the desktop guide rail 12, and at the same time the guide slider 9 enters the table limit groove of the outer tube 10. At this time, the table and chair panel 41 acts as a For desktop use, complete the transition from chair state to table state.

3. The process of transforming from table state to floor state is as follows:

First, the table and chair panel 41 is rotated upwards around the desktop guide rail axis 37, and the desktop track axis is moved out of the bent portion of the desktop guide rail 12, and the table and chair panel 41 is continuously turned up until it remains vertical. Press the limit button 6 on both sides, and the table and chair part moves down together with the top board 39 until the top board 39 is close to the small piece of floor 22 . Turn the upper folding lever 44 to vertical and press down, so that the buckle block 31 is pushed out of the floor folding square tube 25 by the push rod outer block 30, the large floor 49 and the small floor 22 are unlocked, and the top plate 39 is slowly Slowly rotate downward until it is horizontal, completing the transition from the table state to the floor state.

Figure 3 shows the support and limit device of the floor panel in the state of tables and chairs. The large and small floors 49 and 22 are supported by the buckle blocks 31 on both sides and the square steel pipe floor folding square pipe 25, and the folding buttons are pressed down by the up and down folding buttons 44 and 26. The pressing block 27 uses the push rod mechanism 28, 29, 30 to push the buckle block 31 away to achieve the effect of easily putting away the desk and chair.

In Fig. 3, it can also be seen that the buckle block 31 adopts the design of different inclination angles on the upper and lower sides, which can achieve the effect of "one-way traffic" of the device. It will be stuck, and the smaller slope at the upper end is to push the buckle block 31 out of the floor folded square tube 25 more easily when the fold button 26 is pressed, and the buckle block 31 and the floor folded square tube 25 are in the form of a table and chair state. Surface contact, better strength, able to position and support the entire device.

Since the present invention uses tables and chairs for classrooms, the floor storage buttons are located on the ground, and the vertical buttons are easily touched by mistake, which may cause unnecessary danger. Therefore, the button of the floor adopts a two-part hinged design, and the upper folding button 44 will be close to the ground due to gravity in a normal state, thereby preventing people who use tables and chairs from stepping on it by mistake. If you want the table and chairs to be taken into the floor, you only need to gently push the upper folding button 44 to the vertical position with your feet and then step on it.

Every two modules can be used in pairs and installed face to face, and the orientation of each pair of tables and chairs can be changed through the state change of a pair of tables and chairs modules. Figure 10 and Figure 11 show the change of the orientation of the tables and chairs by changing the state of the tables and chairs, and based on such changes, different functions of the classroom can be realized. As shown in Figure 10, it is the front and back seat mode, and as shown in Figure 11, it is the face-to-face seat mode.

12 to 16 show various indoor use states combined with the table and chair module of the present invention, black squares represent chairs, and white squares represent tables.

As shown in Figure 12, the module can be set up in the way shown in Figure 10 to achieve the effect of an ordinary classroom.

As shown in Figure 13, if all the modules are converted into the floor state, a classroom can be completely converted into an empty activity room.

As shown in Figure 14, the module can be set up in the way shown in Figure 11 to achieve the effect of a discussion classroom.

As shown in Figure 15, adjusting the module according to the table and chair setting requirements required by the debate competition can also achieve the effect of the debate classroom.

Turning the module in the middle of the classroom into a floor, as shown in Figure 16, also allows the classroom to be used for parties.

The above shows the functions of various classrooms realized by different desks and chairs. Through such classroom function conversion, classroom functions can be increased in the case of limited school space, thereby saving land resources. At the same time, it can also be used as a professional multi- Functional and interactive special classrooms meet the multiple requirements of combining normal classes, discussions and debates, and student presentations.

The table and chair module of the present invention is a standard cuboid when used as a floor, which is convenient for transportation and installation, and no pits will be left on the floor after the table and chair are turned out of the floor, which effectively solves the cleaning problem inside the module.

Thus, after the floor of the present invention is lifted, there are two states of a table and a chair, and the floor is raised to automatically be in the first state, that is, a chair, and the table is converted into a second state, that is, a table by further raising the desktop. After all the tables and chairs are folded into the floor, the classroom can be temporarily used as an activity room. At the same time, through the conversion of the ground, tables and chairs, the orientation can be changed to complete the mutual conversion of the discussion classroom, ordinary classroom and U-shaped classroom, realizing multi-function It meets the needs of multi-purpose scenarios and has significant technical effects.

Claims (9)

1. A foldable floor integrated table and chair module, characterized in that it includes a box (16) installed in the ground floor, and the box (16) is equipped with a folding device as a table or a chair or the ground, which is not used When the top plate (39) of the box (16) is used as the floor, the folding device is unfolded as a table or a chair during use, and the folding device includes a link type motion support mechanism, a lifting mechanism, a table and chair mechanism and a folding support switch; Link type motion support mechanism: small floor (22), large floor (49) and support plate (52) are installed in the box body (16), and one end of small floor (22) is hinged on the On the top of the rear side plate of the box body (16), the other end of the small floor (22) is hinged with one end of the large floor (49), the bottom surface of the middle part of the large floor (49) is hinged with one end of the support plate (52), and the support plate (52 ) the other end is hinged on the inner bottom surface of the box (16), thereby forming a planar four-bar structure by the small floor (22), the large floor (49), the support plate (52) and the rear side plate of the box (16); A buffer spring (55) is installed between the bottom surface of the board (52) and the inner bottom surface of the box body (16) to prevent the support plate from being stuck; (16) The top surface is used as the expanded floor, and the front and rear sides are respectively supported by the rear side panels of the box body (16) and the support plate (52), and the connection between the small floor (22) and the large floor (49) is supported by folding Switch support; Lifting mechanism: including the desktop guide rail (12) and the inner and outer lifting parts installed in parallel with the desktop guide rail (12), two parallel desktop guide rails ( 12), the inner lifting parts include the inner square tube (11) and the inner square rod (1), and the bottom surface of the top plate (39) outside the two desktop guide rails (12) is symmetrically fixed and fixed with the inner square tube (11), the inner square tube ( 11) The inner sleeve has an inner square rod (1); the outer lifter includes an outer square tube (10) and an outer square rod (2). The square pipe (10) is fixedly connected with the inner square pipe (11) through the fixed arm (38), and the outer square pipe (10) is covered with an outer square rod (2); the inner square rod (1) and the outer square rod (2) The bottom of each is fixed on the small piece of floor (22) by the bottom support seat (15), and the inner sides of the outer square pipe (10) and the outer square bar (2) have guide grooves; Table and chair mechanism: including the table and chair panel (41), the lower support shaft (3), the upper support shaft (4) and two inclined support rods (43), the rear end of the table and chair panel (41) is connected with two desktop guide rails The joint block (36), the desktop guide rail shaft (37) on the desktop guide rail joint block (36) is embedded in the desktop guide rail (12), and the profile hinge piece (42) is symmetrically installed on both sides of the bottom surface of the table and chair panel (41). The support shaft (4) is connected between two profile hinge pieces (42), and the two ends of the upper support shaft (4) are respectively hinged with the two ends of the lower support shaft (3) through the inclined support rods (43) on both sides. Both ends of the support shaft (4) are covered with torsion springs (5) for elastic hinges, and guide sliders (9) are sleeved on both ends of the lower support shaft (3), and the guide sliders (9) are embedded in each In the guide groove of the outer square pipe (10) on the side and the outer square rod (2) and move along the guide groove. 2. A foldable floor integrated table and chair module according to claim 1, characterized in that: the folding support switch part: includes an upper folding press lever (44), a buckle spring (23), a latch Buckle sleeve (24), floor folding square tube (25), lower folding press lever (26), folding button press block (27), push rod piece and buckle block (31); two buckle sleeves (24) respectively Fixedly installed on the box body (16) side panels on both sides of the connection between the small floor (22) and the large floor (49), the buckle block (31) and the buckle spring (23) are housed in the buckle sleeve (24) ); the floor folding square tube (25) is installed between the two buckle sleeves (24), the floor folding square tube (25) is fixedly connected with the bottom surface of the large floor (49), and the floor folding square tube (25) is equipped with a folding Button briquetting (27) and the push rod parts on both sides of the folding button briquetting (27), the folding button briquetting (27) is located in the center of the floor folding square tube (25), and the upper end of the folding button briquetting (27) is connected with The lower folding pressing rod (26), the lower folding pressing rod (26) passes through the floor folding square tube (25) and the large floor (49) and is hinged with the upper folding pressing rod (44). The buckle block (31) stretches into the floor folded square tube (25) through the elastic extrusion of the buckle spring (23) and squeezes the folding button press block (27) in the center through the respective push rods on both sides. 3. A foldable floor integrated table and chair module according to claim 2, characterized in that: said push rod includes a push rod (29) and a push rod fixed at both ends of the push rod (29) The inner block (28) and the push rod outer block (30), the two push rod inner blocks (28) are respectively located on both sides of the folding button pressing block (27), the folding button pressing block (27) is an inverted trapezoidal structure, and the folding button The side of the push rod inner block (28) contacted by the button pressing block (27) is an upwardly inclined slope. 4. A foldable floor integrated table and chair module according to claim 1, characterized in that: the other end of the small floor (22) and one end of the large floor (49) pass through the first hinge (48) hinged, the first hinge (48) is fixed by cross-recessed countersunk head self-tapping screws, the bottom surface of the middle part of the large floor (49) and one end of the support plate (52) are hinged through the second hinge (19), the support plate ( 52) The other end is hinged to the inner bottom surface of the box (16) through the third hinge (20). 5. A foldable floor integrated table and chair module according to claim 1, characterized in that: the side of the guide groove of the outer tube (10) is provided with a guide slider (9) to engage Fixed table limit groove, when the guide slider (9) is engaged on the table limit groove, the table and chair panel (41) is used as the desktop board. 6. A foldable floor integrated table and chair module according to claim 1, characterized in that: the side of the guide groove of the outer square rod (2) is provided with a guide slider (9) for engagement Fixed chair limit groove, when the guide slider (9) is engaged on the chair limit groove, the table and chair panel (41) is used as the chair panel. 7. A foldable floor integrated table and chair module according to claim 1, characterized in that: the guide rail groove on the top of the desktop guide rail (12) has a bent part, and the bent part faces the top plate (39) bent. 8. A foldable floor integrated table and chair module according to claim 1, characterized in that: the upper side of the inner square rod (1) is equipped with a limit hole, and a limit button is installed in the limit hole ( 7) and the button spring (8); when unfolded, one end of the limit button (7) pushes against the inner wall of the inner square rod (1) through the button spring (8), and the other end of the limit button (7) extends out of the limit hole to push against the Inner square pipe (11) bottom. 9. A foldable floor integrated table and chair module according to claim 2, characterized in that: a support column (51) is provided under the two buckle sleeves (24), and the support column (51 ) bottom is fixed to the bottom surface of the box body (16) through the angle iron (54), and the top of the support column (51) is supported on the bottom of the buckle sleeve (24) for support and positioning.