Turnover stacked chair

Abstract

A turnover stacked chair relates to the technical field of stacked chairs and comprises a certain number of seats arranged in a row, a bearing frame located on a foundation, a driving mechanism and a transmission mechanism, a fixing frame is arranged at the bottoms of the seats and comprises a front transverse rod and a rear transverse rod which are arranged in parallel in the arrangement direction of the seats, and a certain number of web members are connected between the front transverse rod and the rear transverse rod. The seat is fixed on the web member, the driving mechanism comprises a driving motor and an overturning shaft, a first chain wheel is arranged on an output shaft of the driving mechanism, two ends of the overturning shaft are fixed on the bearing frame through mounted bearings, a second chain wheel is arranged on the overturning shaft, and the first chain wheel and the second chain wheel are in transmission connection through a chain; one end is connected with the rear cross rod, and the other end is connected with the turnover shaft. The stacked chairs provided by the utility model can be overturned in a whole row by using one driving mechanism, so that an automatic control system is simple, the cost is saved, the mechanical structure is simplified, and the space utilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of row chairs, in particular to a flip row chair. Background Art

[0002] Row chairs are a main facility in places such as theaters and cinemas. Existing row chairs are generally fixedly arranged. Fixed row chair facilities are troublesome to disassemble when not in use, unable to meet the diversified needs of the market, and both leaving them disassembled in place or storing them after disassembly take up a lot of space, resulting in low utilization rate of the space in the place. Content of the Utility Model

[0003] The purpose of the utility model is to solve the deficiencies of the above-mentioned existing technologies, and provide a flip row chair, which can realize the flipping of the whole row with one driving mechanism, simplify the automatic control system, save costs, simplify the mechanical structure, and improve the space utilization rate.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A flip row chair includes a certain number of seats arranged in a row, a load-bearing frame located on the foundation, a driving mechanism and a transmission mechanism. A fixing frame is arranged at the bottom of the seat. The fixing frame includes a front cross bar and a rear cross bar arranged in parallel along the seat arrangement direction. A certain number of web members are connected between the front cross bar and the rear cross bar, and the seat is fixed on the web members. The driving mechanism includes a driving motor and a flip shaft. The driving motor is fixed in the middle area of the load-bearing frame, and a first sprocket is arranged on its output shaft. Both ends of the flip shaft are fixed on the load-bearing frame through pillow block bearings, and a second sprocket is arranged thereon. The first sprocket and the second sprocket are connected by a chain drive. The transmission mechanism includes a certain number of active flip connecting rods. The active flip connecting rods are located in the area where the flip shaft is located, and include a C-shaped connecting block and an L-shaped connecting block. The upper end of the C-shaped connecting block is connected to the rear cross bar, the upper end of the vertical part of the L-shaped connecting block is connected to the lower end of the C-shaped connecting block, and the outer end of the horizontal part is connected to the flip shaft. The seat is not installed on the load-bearing frame, but on the fixing frame, and is connected to the transmission mechanism through the fixing frame. The transmission mechanism is then connected to the driving mechanism installed on the load-bearing frame. When the driving motor works, the first sprocket rotates, drives the second sprocket and the flip shaft to rotate through the chain, thereby driving the active flip connecting rods to flip around the central axis of the flip shaft. The fixing frame and the seats thereon flip accordingly. When the seats flip upward, they are located above the load-bearing frame for people to use. When the seats flip downward, they are hidden below the load-bearing frame, and the space above the load-bearing frame can be used for other purposes.

[0006] Preferably, the transmission mechanism further includes a certain number of driven flipping linkages located in the area outside the flipping shaft. The driven flipping linkages include C-shaped connecting blocks and vertical connecting blocks. The upper ends of the C-shaped connecting blocks are connected to the rear crossbar, and the upper ends of the vertical connecting blocks are connected to the lower ends of the C-shaped connecting blocks. The vertical parts of the L-shaped connecting blocks, between the vertical parts of adjacent L-shaped connecting blocks and the lower ends of the vertical connecting blocks, and between the lower ends of the vertical connecting blocks are connected by synchronizing rods, ensuring that the fixing frame is more evenly stressed during flipping and the entire row of seats flips synchronously.

[0007] Preferably, a floor is provided on the load-bearing frame. The edge of the floor protrudes from the load-bearing frame and can be inserted into the opening of the C-shaped connecting block. After the seats are hidden, the floor can be used for purposes such as stage performances.

[0008] Preferably, a certain number of first bolt assemblies arranged in a row are provided on the front crossbar. A height adjustment block matching the bolt is provided at the bottom of the first bolt assembly, which can make all the seats fit the floor surface and make the seats stable.

[0009] Preferably, the web member has an inverted L-shaped cross-section and is formed by sheet metal bending. A number of reinforcing ribs are provided on the web member, and the two ends of the web member are respectively connected to the front crossbar and the rear crossbar by welding.

[0010] Preferably, the vertical and horizontal parts of the L-shaped connecting block are respectively square tubes, the vertical connecting block is a square tube, and the C-shaped connecting block has a C-shaped cross-section and is formed by sheet metal bending. The C-shaped connecting block is respectively connected to the L-shaped connecting block and the vertical connecting block by welding.

[0011] Preferably, the vertical part of the L-shaped connecting block has a two-piece structure, and rectangular connecting plates are respectively provided at the ports. The two rectangular connecting plates are connected by a number of second bolt assemblies. The C-shaped connecting block is connected to the rear crossbar by a second bolt assembly. The two-piece structure is convenient for installation and disassembly.

[0012] Preferably, the connecting through holes on the C-shaped connecting block and the rectangular connecting plates are waist-shaped holes.

[0013] Preferably, the front crossbar and the rear crossbar are channel steels.

[0014] Preferably, the drive motor is provided with symmetric double output shafts, and correspondingly, there are two symmetric groups of the first sprocket, the flipping shaft, the second sprocket and the chain. The driving force of the double output shafts is more balanced, making the flipping movement of the seats smoother.

[0015] The advantages of the present utility model are as follows: 1. The row of chairs can be flipped in a whole row with one drive mechanism, simplifying the automatic control system and saving costs;

[0016] 2. The structural reliability of the drive mechanism and the transmission mechanism is high, simplifying the mechanical structure;

[0017] 3. The seat, the fixing frame and the transmission mechanism are detachably connected by a bolt structure, which is convenient for adjustment and ensures the installation accuracy.

[0018] 4. The flip-up row chair can be hidden when not in use, taking up no space, improving the space utilization rate of the venue, and can be used for other purposes to meet the diversified needs of the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view of the present utility model;

[0020] Figure 2 is Figure 1 the sectional view taken along the line A-A in

[0021] Figure 3 is Figure 2 the structural schematic diagram after the seat is flipped down in

[0022] Figure 4 is Figure 1 the enlarged schematic diagram at B in

[0023] Figure 5 is the structural schematic diagram of the fixing frame and the active flip link in the present utility model;

[0024] Figure 6 is the bottom view structural diagram of the upper half of the active flip link in the present utility model;

[0025] Figure 7 is the top view structural diagram of the lower half of the active flip link in the present utility model;

[0026] Figure 8 is the structural schematic diagram of the fixing frame and the driven flip link in the present utility model;

[0027] Figure 9 is the bottom view structural diagram of the driven flip link in the present utility model.

[0028] Description of the main reference numerals in the drawings:

[0029] 11. Seat; 12. Load-bearing frame; 13. Floor;

[0030] 20. Fixing frame; 21. Front cross bar; 22. Rear cross bar; 23. Web member; 24. First bolt assembly; 25. Height adjustment block; 26. Reinforcing rib;

[0031] Driving mechanism: 31. Driving motor; 32. Flip shaft; 33. First sprocket; 34. Pillow block bearing; 35. Second sprocket; 36. Chain;

[0032] Transmission mechanism: 41, active flip connecting rod; 42, driven flip connecting rod; 43, C-shaped connecting block; 44, L-shaped connecting block; 45, vertical connecting block; 46, synchronization rod; 47, rectangular connecting plate.

[0033] 50. Second bolt assembly. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0035] Embodiment 1: Figures 1-3 As shown, a flip row chair includes a certain number of seats 11 arranged in a row, a load-bearing frame 12 located on a foundation, a driving mechanism and a transmission mechanism.

[0036] Combination Figure 5 and Figure 8 As shown, a fixing frame 20 is arranged at the bottom of the seat 11, and the fixing frame 20 includes a front cross bar 21 and a rear cross bar 22 arranged in parallel along the arrangement direction of the seats 11, and a certain number of abdominal bars 23 are connected between the front cross bar 21 and the rear cross bar 22, and the seat 11 is fixed on the abdominal bars 23.

[0037] Among them, the driving mechanism includes a driving motor 31 and a flip shaft 32. The driving motor 31 is fixed in the middle area of ​​the load-bearing frame 12, and a first sprocket 33 is arranged on its output shaft. Both ends of the flip shaft 32 are fixed to the load-bearing frame 12 through seat bearings 34, and a second sprocket 35 is arranged on it. The first sprocket 33 and the second sprocket 35 are connected by a chain 36.

[0038] Combination Figures 5-7 As shown, the transmission mechanism includes a certain number of active flip connecting rods 41, which are located in the area where the flip axis 32 is located, and include a C-shaped connecting block 43 and an L-shaped connecting block 44. The upper end of the C-shaped connecting block 43 is connected to the rear cross bar 22, the upper end of the vertical part of the L-shaped connecting block 44 is connected to the lower end of the C-shaped connecting block 43, and the outer end of the horizontal part is connected to the flip axis 32.

[0039] Embodiment 2: Figure 1 , Figure 4 and Figures 8-9 As shown, on the basis of embodiment one, the transmission mechanism also includes a certain number of driven flip links 42, which are located outside the flip axis 32, and include a C-shaped connecting block 43 and a vertical connecting block 45. The upper end of the C-shaped connecting block 43 is connected to the rear cross bar 22, and the upper end of the vertical connecting block 45 is connected to the lower end of the C-shaped connecting block 43. The vertical parts of the L-shaped connecting blocks 44, the vertical parts of adjacent L-shaped connecting blocks 44 and the lower ends of the vertical connecting blocks 45, and the lower ends of the vertical connecting blocks 45 are connected by a synchronization rod 46.

[0040] Embodiment 3: As shown in Figures 2-3 , Figure 5 and Figure 8 , on the basis of Embodiment 1 or Embodiment 2, a floor 13 is provided on the load-bearing frame 12, and the edge of the floor 13 protrudes from the load-bearing frame 12 and can be embedded into the opening of the C-shaped connecting block 43.

[0041] Among them, a certain number of first bolt assemblies 24 arranged in a column are provided on the front cross bar 21, and a height adjustment block 25 matching the bolt is provided at the bottom of the first bolt assembly 24.

[0042] Among them, the cross section of the web member 23 is in an inverted L shape and is formed by sheet metal bending. A number of reinforcing ribs 26 are provided on the web member 23, and both ends of the web member 23 are respectively connected to the front cross bar 21 and the rear cross bar 22 by welding.

[0043] Embodiment 4: As shown in Figures 5-9 , on the basis of Embodiment 1, Embodiment 2 or Embodiment 3, the vertical part and the horizontal part of the L-shaped connecting block 44 are respectively square tubes, the vertical connecting block 45 is a square tube, the cross section of the C-shaped connecting block 43 is in a C shape and is formed by sheet metal bending, and the C-shaped connecting block 43 is respectively connected to the L-shaped connecting block 44 and the vertical connecting block 45 by welding.

[0044] The vertical part of the L-shaped connecting block 44 is a two-piece structure, and rectangular connecting plates 47 are respectively provided at the ports. The two rectangular connecting plates 47 are connected by a number of second bolt assemblies 50, and the C-shaped connecting block 43 is connected to the rear cross bar 22 by the second bolt assemblies 50.

[0045] Among them, the connecting through holes on the C-shaped connecting block 43 and the rectangular connecting plate 47 are waist-shaped holes, and the front cross bar 21 and the rear cross bar 22 are channel steels.

[0046] Embodiment 5: As shown in Figure 1 , on the basis of the above embodiments, the driving motor 31 is provided with a symmetric double output shaft, and correspondingly, two symmetric groups of the first sprocket 33, the turning shaft 32, the second sprocket 35 and the chain 36 are provided.

[0047] The above are only specific embodiments of the present invention, but the structural features of the present invention are not limited thereto. The present invention can be used for similar products, and any changes or modifications made by any person skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A flip bench, characterized in that: It comprises a certain number of seats (11) arranged in a row, a load-bearing frame (12) located on a foundation, a driving mechanism and a transmission mechanism; A fixing frame (20) is provided at the bottom of the seat (11), the fixing frame (20) comprising a front crossbar (21) and a rear crossbar (22) arranged in parallel along the arrangement direction of the seats (11), a certain number of abdominal bars (23) are connected between the front crossbar (21) and the rear crossbar (22), and the seat (11) is fixed on the abdominal bars (23); The driving mechanism comprises a driving motor (31) and a tilting shaft (32); the driving motor (31) is fixed to a middle region of a load-bearing frame (12); a first sprocket (33) is arranged on the output shaft of the driving motor (31); both ends of the tilting shaft (32) are fixed to the load-bearing frame (12) via seat bearings (34); a second sprocket (35) is arranged on the tilting shaft; the first sprocket (33) and the second sprocket (35) are connected by a chain (36); The transmission mechanism comprises a certain number of active flip connecting rods (41), the active flip connecting rods (41) being located in the region where the flip shaft (32) is located, and comprising a C-shaped connecting block (43) and an L-shaped connecting block (44), the upper end of the C-shaped connecting block (43) being connected to the rear cross bar (22), the upper end of the vertical portion of the L-shaped connecting block (44) being connected to the lower end of the C-shaped connecting block (43), and the outer end of the horizontal portion being connected to the flip shaft (32).

2. The flip bench according to claim 1, characterized in that: The transmission mechanism further comprises a certain number of driven flip connecting rods (42), the driven flip connecting rods (42) being located in an area outside the flip shaft (32), and comprising a C-shaped connecting block (43) and a vertical connecting block (45), the upper end of the C-shaped connecting block (43) being connected to the rear cross bar (22), the upper end of the vertical connecting block (45) being connected to the lower end of the C-shaped connecting block (43), the vertical parts of the L-shaped connecting blocks (44), the vertical parts of adjacent L-shaped connecting blocks (44) and the lower ends of the vertical connecting blocks (45), and the lower ends of the vertical connecting blocks (45) being connected via a synchronization rod (46).

3. The flip bench according to claim 2, characterized in that: A floor (13) is arranged on the load-bearing frame (12), and the edge of the floor (13) protrudes from the load-bearing frame (12) and can be embedded in the opening of the C-shaped connecting block (43).

4. The flip bench according to claim 3, characterized in that: A certain number of first bolt assemblies (24) arranged in a row are arranged on the front crossbar (21), and a height adjustment block (25) matching the bolts is arranged at the bottom of the first bolt assemblies (24).

5. The flip bench according to claim 2, characterized in that: The cross section of the web member (23) is in an inverted L-shape and is formed by bending a sheet metal. A plurality of reinforcing ribs (26) are provided on the web member (23). The two ends of the web member (23) are respectively connected to the front cross bar (21) and the rear cross bar (22) by welding.

6. The flip bench according to claim 2, characterized in that: The vertical portion and the horizontal portion of the L-shaped connection block (44) are respectively square tubes, the vertical connection block (45) is a square tube, the C-shaped connection block (43) has a C-shaped cross section and is formed by bending a sheet metal, and the C-shaped connection block (43) is connected to the L-shaped connection block (44) and the vertical connection block (45) by welding.

7. The flip bench according to claim 6, characterized in that: The vertical portion of the L-shaped connection block (44) is a two-section structure, and rectangular connection plates (47) are respectively provided at the ends. The two rectangular connection plates (47) are connected via a plurality of second bolt assemblies (50), and the C-shaped connection block (43) is connected to the rear cross bar (22) via the second bolt assembly (50).

8. The flip bench according to claim 7, characterized in that: The connecting through holes on the C-shaped connecting block (43) and the rectangular connecting plate (47) are waist-shaped holes.

9. The flip bench according to claim 1, characterized in that: The front cross bar (21) and the rear cross bar (22) are channel steels.

10. A flip bench according to any one of claims 1 to 9, characterized in that: The driving motor (31) is provided with symmetrical dual output shafts, and the corresponding first sprocket (33), the flip shaft (32), the second sprocket (35) and the chain (36) are provided in two symmetrical groups.

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