CN204015506U - Automatic tables and chairs arrangement system - Google Patents

Abstract

The utility model discloses an automatic table and chair arrangement system, which comprises a reduction motor, an eccentric wheel mechanism, a connecting rod mechanism, a table top structure, a chair surface structure, multiple rows of main rods and pulley assemblies. The upper hinged seat structure, the corresponding hinged desktop structure on the front row of main rods, the seat structure includes the seat connecting rod and the chair support rod, the seat connecting rod is hinged on the main rod, and one end of the chair support rod is hinged on the chair. The other end of the seat surface support rod is hinged on the main rod at the lower slider, and two support rods are hinged on the main rod below the lower slider, and the two support rods are respectively connected to the connecting rod II at the front end and the connecting rod II at the rear end. The connecting rod Ⅲ is connected, and the pulley assembly is installed at the bottom of the main rod; the connecting rod Ⅱ on the last row of main rods has a pulling node, which is stretched by the geared motor through the eccentric mechanism, and the last row of main rods is fixed on the ground. The core of the automatic table and chair arrangement system is the two processes of table and chair structure movement to realize the expansion and contraction of tables and chairs, so that it can be connected with the variability of site space functions and realize the diversification of classroom functions.

Description

Automatic Table and Chair Arrangement System

technical field

The utility model relates to an automatic table and chair arrangement system.

Background technique

At present, there are three problems in the classroom: 1. Due to the limited number of cultural and sports activity rooms in the university, it is inconvenient to hold various activities, and the current classroom cannot carry out large-scale activities due to the small space; 2. Nowadays, the desks and chairs cannot be moved or It is inconvenient to move; 3. Due to the fixed desks and chairs, the cleaning is not thorough, and there are too many dead spots for hygiene, which makes it difficult to maintain classroom hygiene.

According to relevant searches, there is no table and chair that can effectively solve the above three problems. Therefore, it is necessary to provide a new technical solution to solve the above problems.

Utility model content

In order to solve the problem that classroom tables and chairs are fixed and cannot be moved, resulting in single classroom functions, the utility model provides an automatic table and chair arrangement system that can be freely retracted and folded.

The technical scheme that the utility model adopts is:

An automatic table and chair arrangement system, the table and chair arrangement system includes a geared motor, an eccentric wheel mechanism, a connecting rod mechanism, a tabletop structure, a chair surface structure, multiple rows of main rods and pulley assemblies, and a slider assembly is installed on the main rod. The slider assembly includes a bracket, an upper slider and a lower slider. The upper and lower sliders are welded to the upper and lower ends of the bracket. The table top structure, the chair surface structure includes a chair surface connecting rod and a chair surface supporting rod, the chair surface connecting rod is hinged on the main rod, one end of the chair surface supporting rod is hinged to the end of the chair surface connecting rod, the chair The other end of the surface support rod is hinged on the main rod at the lower slider, and the linkage mechanism includes connecting rod I, connecting rod II and connecting rod III, and one end of the connecting rod I, connecting rod II and connecting rod III is hinged Together, the other end of the connecting rod I is hinged on the chair support rod, the other end of the connecting rod II is hinged at the lower end of the main rod, and the other end of the connecting rod III is connected to the lower end of the previous row of main rods to form a row Connected with the row, two support rods are hinged on the main rod below the lower slider, and the two support rods are respectively connected with the connecting rod II at the front end and the connecting rod III at the rear end, and a pulley assembly is installed at the bottom of the main rod; The connecting rod II on the last row of main rods has a pulling node, and the pulling node is stretched by the reduction motor through the eccentric mechanism, and the last row of main rods is fixed on the ground.

The desktop structure includes a desktop connecting rod and a desktop supporting rod, the desktop connecting rod is hinged on the main rod, one end of the desktop supporting rod is hinged on the end of the desktop connecting rod, and the other end of the desktop supporting rod is hinged on the upper slider on the main pole.

The pulley assembly includes a slide plate installed on the bottom of the main rod and a roller installed under the slide plate.

Beneficial effects of the utility model: (1) The bottom of the seat is equipped with rollers, which can realize the free movement of tables and chairs, simple in structure, easy to manufacture, and convenient to operate; (3) Using the tables and chairs can make the folding shrinkage rate of the classroom reach about 78%, so that the classroom can be multi-functional, and the cleaning work of the classroom can be carried out relatively smoothly; (4) Smartly drive the eccentric Wheels to achieve the effect of stretching and shrinking.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the pulling node of the geared motor of the present invention through the eccentric mechanism.

Among them: 1. Main rod, 2. The last row of main rods, 3. Upper slider, 4. Lower slider, 5. Bracket, 6. Geared motor, 7. Chair connecting rod, 8. Chair support rod, 9. Desktop connecting rod, 10. Desktop supporting rod, 11. Connecting rod Ⅰ, 12. Connecting rod Ⅱ, 13, Connecting rod Ⅲ, 14. Supporting rod, 15. Supporting rod, 16. Pulling node, 17. Eccentric wheel mechanism , 18, skateboard, 19, roller.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further. The following examples are only used to illustrate the utility model, and are not intended to limit the protection scope of the utility model.

As shown in Figures 1 and 2, the automatic table and chair arrangement system of the present invention includes a reduction motor 6, an eccentric wheel mechanism, a connecting rod mechanism, a tabletop structure, a chair surface structure, multiple rows of main rods and a pulley assembly , the main rod 1 is equipped with a slider assembly, the slider assembly includes a bracket 5, an upper slider 3 and a lower slider 4, the upper and lower sliders 3 and 4 are welded to the upper and lower ends of the bracket 5, and the upper and lower ends of the main rod 1 Hinged seat surface structure, the main rod 2 in the front row is correspondingly hinged to the desktop structure, the seat structure includes the seat surface connecting rod 7 and the seat surface support rod 8, the chair surface connecting rod 7 is hinged on the main rod 1, and the seat surface support rod One end of 8 is hinged to the end of the chair surface connecting rod 7, and the other end of the chair surface support rod 8 is hinged to the main rod 1 at the lower slider 4. The connecting rod mechanism includes connecting rod I11, connecting rod II12 and connecting rod III13, and the connecting rod Ⅰ11, one end of connecting rod II12 and connecting rod III13 are hinged together, the other end of connecting rod I is hinged on the seat support rod, the other end of connecting rod II is hinged at the lower end of the main rod, and the other end of connecting rod III13 is connected to the front row The lower end of the main rod 1 forms a conjoined body between the row and the row, and two support rods 14, 15 are hinged on the main rod 1 below the lower slider 4. The rod III13 is connected, and the pulley assembly is installed at the bottom of the main rod 1; the connecting rod II12 on the last row of main rods 2 has a pulling node 16, and the pulling node 16 is stretched by the reduction motor 6 through the eccentric mechanism 17, and the last row of main rods 2 fixed to the ground.

The above-mentioned desktop structure includes a desktop connecting rod 9 and a desktop supporting rod 10, the desktop connecting rod 9 is hinged on the main rod 1, one end of the desktop supporting rod 10 is hinged to the end of the desktop connecting rod 9, and the other end of the desktop supporting rod 10 is hinged on the upper slider 3 on the main pole 1.

The above-mentioned pulley assembly includes a slide plate 18 installed on the bottom of the main pole 1 and a roller 19 installed under the slide plate 18 .

The above-mentioned hinges are connected by pins.

As shown in FIG. 2 , the above-mentioned eccentric wheel mechanism 17 includes an eccentric cam 171 and a connecting rod 172 , and the eccentric cam 171 is movably connected with the connecting rod 172 through a connecting rod pin 173 . The axis of the eccentric cam 171 is coaxially connected with the reduction motor 6, and the reduction motor 6 drives the rotation of the eccentric cam 171, so that the connecting rod 172 reciprocates back and forth.

The core of the automatic table and chair arrangement system is the two processes of the table and chair structure movement to realize the expansion and contraction of the table and chair, so that it can be connected with the variability of the space function of the site and realize the diversification of classroom functions. The tables and chairs in the last row are fixed, and the power is provided by the motor. It is connected with the eccentric wheel to drive the eccentric wheel to rotate. The eccentric wheel mechanism pulls the pulling node on the last row of connecting rod III to realize the reciprocating movement.

The two processes of shrinking and stretching of tables and chairs are as follows:

Contraction process: when the deceleration motor 6 drives the eccentric wheel mechanism 17 to rotate, the eccentric point on the eccentric wheel will move upwards, and the eccentric wheel mechanism 17 will pull the pulling node 16 on the last row of connecting rod II12, and the connecting rod II12 will move upwards, even Rod Ⅱ12 moves upwards to push the last row of connecting rods Ⅰ11 to move upwards and pulls the last row of connecting rods Ⅲ13 to move backwards, connecting rods Ⅰ11 moves upwards to push the last row of seat support rods 8 to move upward, and seat support rods 8 then push the chair The chair surface of face connecting rod 7 and table and chair is folded up. The last row of connecting rods Ⅲ13 pulls the two support rods 14 and 15 of the front row to move upward, the front support rod 14 pulls the front row of connecting rod Ⅱ12 to move upward, connecting rod Ⅱ12 pushes the connecting rod Ⅰ11 to move upward, and connecting rod Ⅰ11 pushes this The seat surface support rod 8 moves upward, the seat surface support rod 8 moves upward and pushes the seat surface connecting rod 7 to fold the seat surface, and at the same time pulls the lower slider 4 to move upward, and the lower slider 4 pushes the upper slider 3 to move upward , the upper slider 3 pushes the desktop support rod 10 to move upward, the desktop support rod 10 moves upward to push the desktop connecting rod 9 to move upward, and finally supports the desktop to fold upward, and the last row of connecting rod III13 moves upward while pulling the front The rows of tables and chairs move backwards, and finally achieve the effect of shrinking. At this time, the angle of movement of the eccentric wheel is 0°-180°.

Stretching process: when the reduction motor 6 drives the eccentric wheel mechanism 17 to rotate, the eccentric point on the eccentric wheel will move downward, and the eccentric wheel mechanism 17 will push the pulling node 16 on the last row of connecting rods II12, which will push the last row of connecting rods Ⅱ12 moves down, the connecting rod Ⅱ12 moves down and pushes the last row of connecting rods Ⅰ to move down and pulls the last row of connecting rods Ⅲ to move backward, the connecting rod Ⅰ moves down and pushes the last row of seat surface support rods 8 to move down , the last row of chair surface support rods 8 pull the chair surface connecting rod 7 to move down and the chair surfaces of tables and chairs stretch out. The last row of connecting rod Ⅲ13 pushes the rear support rod 15 and the front support rod 14 to move downward, the front support rod 14 pushes the front row of connecting rod Ⅱ12 to move down, the connecting rod Ⅱ12 pushes the connecting rod Ⅰ11 to move down, and the connecting rod Ⅰ11 pushes The seat surface support rod 8 moves downward, the seat surface support rod 8 moves downward and pushes the seat surface connecting rod 7 to fold the seat surface, and at the same time pulls the upper slider 3 to move downward, and the upper slider 3 pulls the lower slider 4 to move downward , the upper slider 3 pulls the desktop support rod 8 to move downward, the desktop support rod 8 moves downward and pulls the desktop connecting rod 7 to move downward, and finally supports the desktop to extend downward, and the last row of connecting rod III13 moves downward while pushing the front The rows of tables and chairs move forward, and finally achieve the effect of stretching. At this time, the angle of movement of the eccentric wheel is 180°-360°.

Compared with the existing desks and chairs, the utility model combines the functions of some existing desks and chairs, can be freely retracted and folded, and the shrinkage rate reaches about 75%, making the classroom multi-functional, convenient for classroom cleaning, and simple in structure , easy to process and produce, low cost, and good use effect.

Claims (3)

1. automatic tables and chairs arrangement system, it is characterized in that: this tables and chairs arrangement system comprises reducing motor, eccentric mechanism, linkage, table top set-ups, chair surface structure, many rows mobile jib and pulley assembly, described mobile jib is provided with slide block component, described slide block component comprises support, top shoe and sliding block, on described, sliding block is welded in the upper and lower two ends of support, hinged chair surface structure on described mobile jib, respective hinge table top set-ups on a mobile jib arranged above, described chair surface structure comprises seat connecting rod and seat support bar, described seat rod hinge connection is on mobile jib, described seat support bar one end is articulated with seat interlinking lever end, the described seat support bar other end is articulated with on the mobile jib at sliding block place, described linkage comprises connecting rod I, connecting rod II and connecting rod III, described connecting rod I, one end of connecting rod II and connecting rod III is hinged, described connecting rod I other end is hinged on seat support bar, described connecting rod II other end is hinged on the lower end of mobile jib, described connecting rod III other end is connected to the lower end formation disjunctor between row and row of last row's mobile jib, hinged two support bars on mobile jib below described sliding block, two support bars respectively with the connecting rod II of front end, the connecting rod III of rear end connects, bottom described mobile jib, pulley assembly is installed, connecting rod II on last row's mobile jib has and pulls node, described in pull node to be driven by reducing motor by eccentric mechanism to stretch, last row's mobile jib is fixed on ground.

2. automatic tables and chairs arrangement system according to claim 1, it is characterized in that: described table top set-ups comprises desktop connecting rod and table top support bar, described desktop rod hinge connection is on mobile jib, described table top support bar one end is articulated with desktop interlinking lever end, and the described table top support bar other end is articulated with on the mobile jib at top shoe place.

3. automatic tables and chairs arrangement system according to claim 1, is characterized in that: described pulley assembly comprises the roller under being installed on slide plate bottom mobile jib and being installed on slide plate.