Turnover folding stacked chair

Abstract

A turnover folding row chair relates to the technical field of row chairs, and comprises a driving assembly, a plurality of turnover assemblies and a row chair assembly, the driving assembly comprises a driving motor, a push rod and a push rod fixing seat, the plurality of turnover assemblies are arranged in a row, and each turnover assembly comprises a push connecting lug seat, a transmission plate, a turnover support, a rotating shaft and two bearing supports; a sliding groove and a plurality of lug seat fixing holes are formed in the turnover support, a rotating shaft fixing hole is formed in the middle of the turnover support, a step pin inserted into the sliding groove is arranged at one end of the turnover support, and a stacked chair connecting lug seat is arranged at the other end of the turnover support, the stacked chair assembly comprises a stacked chair support, and a certain number of chair backs and corresponding turnover and foldable chair seats are arranged on the stacked chair support. And the stacked chair connecting lug seat is fixedly connected with the stacked chair bracket. The mechanism is compact in structure, seat overturning is achieved through machinery, control is easy, the boundary dimension of the whole equipment in the width direction is reduced, the space utilization rate of a place is increased, and the diversified requirements of the market are met.

Description

Technical Field

[0001] The present invention relates to the technical field of row chairs, and particularly relates to a flip-fold 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 chairs can no longer meet the diversified needs of the market. To achieve the flipping of the seats, the entire device needs to meet certain external dimensions in the width direction. For seats arranged front and back, it occupies a very large installation space in the width direction. Especially in the scenario where the installation space of the device is relatively small and it cannot be pushed forward and backward, and the overall flipping cannot be achieved by using the lever principle, the utilization rate of the venue space is low. In addition, it is very troublesome to disassemble the fixed row chair facilities when they are not needed. Summary of the Invention

[0003] The purpose of the present invention is to solve the above-mentioned deficiencies of the prior art, and provide a flip-fold row chair, which has a compact structure, realizes the flipping of the seats by machinery, has simple control, reduces the external dimensions of the entire device in the width direction, improves the utilization rate of the venue space, and meets the diversified needs of the market.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A flip-fold row chair includes a driving component, a flipping component and a row chair component. The driving component includes a driving motor, a push rod and a push rod fixing seat. The driving motor can control the movable part of the push rod to perform linear reciprocating motion, and the push rod fixing seat is used to fix the fixed part of the push rod.

[0005] The number of the flipping components is multiple and arranged in a row, and includes a pushing connecting ear seat, a transmission plate, a flipping bracket, a rotating shaft and two bearing supports. The transmission plate is arc-shaped, and is provided with a chute and a plurality of ear seat fixing holes thereon. The pushing connecting ear seat is fixed on the transmission plate, and the adjacent pushing connecting ear seats are connected by a connecting rod. And the pushing connecting ear seat closest to the driving component is connected with the movable outer end of the push rod. A rotating shaft fixing hole is provided in the middle of the flipping bracket, a step pin inserted into the chute is provided at one end, and a row chair connecting ear seat is provided at the other end. Bearings are respectively provided on the two bearing supports, and the rotating shaft passes through the rotating shaft fixing hole and is respectively connected with the bearings at both ends. The center axes of the transmission plate and the rotating shaft coincide. The connecting surface between the pushing connecting ear seat and the transmission plate is set to be the same arc shape so that the two are closely attached. The flipping bracket is fixedly cross-shaped with the rotating shaft, and the row chair connecting ear seat is used to connect the seats. During operation, the driving motor drives the push rod to make the transmission plate translate between the two bearing supports. During the movement, the chute generates a downward or upward component force on the step pin in contact with it, so that the flipping bracket swings around the rotating shaft to achieve flipping.

[0006] The row chair assembly includes a row chair bracket, on which a certain number of chair backs and corresponding flip-foldable seats are arranged. The row chair connecting ear seat is fixedly connected to the row chair bracket. The flipping of the flipping bracket drives the flipping of the row chair assembly. When the flipping bracket is in the erected state, the chair back is also in the erected state. By putting down the seat, one can sit on the chair. When the flipping bracket flips downward, the seat flips and folds together with the chair back, and the whole row chair assembly flips downward synchronously.

[0007] Preferably, a connecting block is arranged between the movable outer end of the push rod and the pushing connecting ear seat, and they can be connected and fixed through the flange at the end.

[0008] Preferably, the radian α of the transmission plate ranges from 100° to 115°. The angle turned by the starting point to the ending point of the sliding groove along the arc surface of the transmission plate is ≥90°. When the transmission plate is in the flattened state, the angle β between the sliding groove and the axis of the transmission plate in the horizontal direction ranges from 40° to 50°. The sliding groove is diagonally inclined on the transmission plate, so that the flipping angle range is 0° to 90°.

[0009] Preferably, the number of the row chair connecting ear seats is two and they are symmetrically arranged for better connection and fixation of the seat.

[0010] Preferably, stoppers are respectively arranged on both sides of the transmission plate between the two bearing supports to play a role in protection and limit.

[0011] Preferably, the stopper is an angle steel.

[0012] Preferably, the ear seat fixing holes are divided into two groups and are respectively located on both sides of the sliding groove. Correspondingly, the number of the pushing connecting ear seats is two, which avoids interference between the flipping bracket and the connecting rod when the flipping bracket rotates along the sliding groove.

[0013] It should be noted that the ear seat fixing holes can also have only one group, and the pushing connecting ear seat is fixed on the other side of the transmission plate, that is, the pushing connecting ear seat and the flipping bracket are respectively located on both sides of the transmission plate, which can also avoid interference between the flipping bracket and the connecting rod when the flipping bracket rotates along the sliding groove.

[0014] Preferably, it further includes a moving step. The driving assembly and the flipping assembly are installed on the moving step. Specifically, the driving motor and the push rod fixing seat of the driving assembly are installed on the moving step, and the bearing supports of the flipping assembly are installed on the moving step.

[0015] Preferably, a certain number of moving wheels are arranged at the bottom of the moving step to facilitate the movement of the whole row chair device.

[0016] The advantages of the present invention are as follows: 1. The structure of the mechanism is compact, the seat flipping is realized by machinery, and the control is simple; 2. The pushing direction of the push rod is set parallel to the central axis of the rotating shaft, which reduces the external dimension of the whole device in the width direction, saves the installation space in the width direction, is suitable for use with seats arranged front to back, and is especially suitable for scenarios where the installation space of the device is small and cannot be pushed forward and backward, and the overall flipping is realized by using the lever principle, improving the utilization rate of the site space and meeting the diversified needs of the market. 3. The movable steps at the bottom can be easily moved through the movable wheels, avoiding complex disassembly steps and having a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view of the present invention (the backrest is erected and the seat is laid flat); Figure 2 is the side view of the present invention Figure 1 (the backrest is erected and the seat is folded); Figure 3 is the side view of the present invention Figure 2 (the backrest is laid flat and the seat is folded); Figure 4 is the top view of the drive assembly and the flipping assembly in the present invention Figure 1 (the row chair assembly is in the erected state); Figure 5 is the top view of the drive assembly and the flipping assembly in the present invention Figure 2 (the row chair assembly is in the laid - flat state); Figure 6 is the front view of the flipping assembly in the present invention Figure 1 (the row chair assembly is in the erected state); Figure 7 is the front view of the flipping assembly in the present invention Figure 2 (the row chair assembly is in the laid - flat state); Figure 8 is the structural schematic diagram of the transmission plate and the flipping bracket in the present invention; Figure 9 is the flattened schematic diagram of the transmission plate in the present invention.

[0018] Description of the main reference numerals in the drawings: 10. Drive assembly; 11. Drive motor; 12. Push rod; 13. Push rod fixing seat; 14. Connecting block; 20. Flipping assembly; 21. Pushing connection ear seat; 22. Transmission plate; 22.1. Chute; 22.2. Ear seat fixing hole; 23. Flipping bracket; 23.1. Rotating shaft fixing hole; 23.2. Step pin; 23.3. Row chair connection ear seat; 24. Rotating shaft; 25. Bearing support; 25.1. Bearing; 26. Stop block; 27. Link; 30. Row chair assembly; 31. Row chair bracket; 32. Backrest; 33. Seat; 40. Movable steps; 41. Movable wheels. Detailed implementation manners

[0019] In order to describe the present invention more clearly, the present invention will be further described below with reference to the accompanying drawings.

[0020] Embodiment 1: As Figures 1-3 shown, a flip-foldable row chair includes a driving assembly 10, a flip assembly 20 and a row chair assembly 30.

[0021] Combined with Figures 4-5 shown, the driving assembly includes a driving motor 11, a push rod 12 and a push rod fixing seat 13.

[0022] Combined with Figure 1 and Figures 4-7 shown, the number of the flip assemblies is multiple and arranged in a column, and includes a pushing connection ear seat 21, a transmission plate 22, a flip bracket 23, a rotating shaft 24 and two bearing supports 25. The transmission plate 22 is arc-shaped, and is provided with a chute 22.1 and a plurality of ear seat fixing holes 22.2 thereon. The pushing connection ear seat 21 is fixed on the transmission plate 22, and adjacent pushing connection ear seats 21 are connected by a connecting rod 27. Moreover, the pushing connection ear seat 21 closest to the driving assembly 10 is connected with the movable outer end of the push rod 12. A step pin 23.2 inserted into the chute 22.1 is arranged at one end of the flip bracket 23, and a row chair connection ear seat 23.3 is arranged at the other end. Bearings 25.1 are respectively arranged on the two bearing supports 25. The rotating shaft 24 passes through the rotating shaft fixing hole 23.1 and is respectively connected with the bearings 25.1 at both ends. Among them, the central axes of the transmission plate 22 and the rotating shaft 24 coincide.

[0023] Combined with Figures 1-3 shown, the row chair assembly 30 includes a row chair bracket 31, a certain number of chair backs 32 and corresponding flip-foldable seats 33 arranged on the row chair bracket 31. The row chair connection ear seat 23.3 is fixedly connected with the row chair bracket 31.

[0024] Embodiment 2: Combined with Figures 4-5 shown, on the basis of Embodiment 1, a connecting block 14 is arranged between the movable outer end of the push rod 12 and the pushing connection ear seat 21.

[0025] Embodiment 3: Combined with Figures 8-9As shown, on the basis of Embodiment 1 or Embodiment 2, the radian α of the transmission plate 22 ranges from 100° to 115°, the angle turned by the starting point to the ending point of the chute 22.1 along the arc surface of the transmission plate 22 is ≥90°, when the transmission plate 22 is in the flattened state, the angle β between the chute 22.1 and the axis of the transmission plate 22 in the horizontal direction ranges from 40° to 50°, and the flipping angle range of the flipping bracket 23 is from 0° to 90°.

[0026] Embodiment 4: Combining Figures 6-7 As shown, on the basis of Embodiment 1, Embodiment 2 or Embodiment 3, the number of the row chair connection ear seats 23.3 is two and they are symmetrically arranged.

[0027] Embodiment 5: Combining Figures 6-7 As shown, on the basis of the above embodiments, stoppers 26 are respectively arranged on the upper and lower sides of the transmission plate 22 between the two bearing supports 25, and the stoppers 26 can be made of angle steel.

[0028] Embodiment 6: Combining Figure 9 As shown, on the basis of the above embodiments, the ear seat fixing holes 22.2 are divided into two groups and are respectively located on both sides of the chute 22.1, and the corresponding number of the pushing connection ear seats 21 is two, so as to avoid interference between the flipping bracket 23 and the connecting rod 27 when the flipping bracket 23 rotates along the chute 22.1.

[0029] Another implementation method is that the ear seat fixing holes 22.2 can also have only one group, and the pushing connection ear seat 21 is fixed on the other side of the transmission plate 22, that is, the pushing connection ear seat 21 and the flipping bracket 23 are respectively located on both sides of the transmission plate 22, which can also avoid interference between the flipping bracket 23 and the connecting rod 27 when the flipping bracket 23 rotates along the chute 22.1.

[0030] Embodiment 7: Combining Figures 1-3 As shown, on the basis of the above embodiments, it further includes a moving step 40, and the driving assembly 10 and the flipping assembly 20 are installed on the moving step 40.

[0031] Wherein, a certain number of moving wheels 41 are arranged at the bottom of the moving step 40.

[0032] The above are only the 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 folding row chair, characterized in that: It comprises a driving assembly (10), a flip assembly (20) and a row of chairs assembly (30); The driving assembly (10) comprises a driving motor (11), a push rod (12) and a push rod fixing seat (13); The flip assembly (20) is arranged in a row and comprises a push-connecting ear seat (21), a transmission plate (22), a flip bracket (23), a rotating shaft (24) and two bearing supports (25). The transmission plate (22) is in an arc shape and is provided with a slide groove (22.1) and a plurality of ear seat fixing holes (22.2). The push-connecting ear seat (21) is fixed on the transmission plate (22). Adjacent push-connecting ear seats (21) are connected by connecting rods (27). The push-connecting ear seats (21) closest to the driving assembly (10) are connected to each other by connecting rods (27). The ear seat (21) is connected to the movable outer end of the push rod (12); a rotating shaft fixing hole (23.1) is provided in the middle of the flip bracket (23); a step pin (23.2) inserted into the slide groove (22.1) is provided at one end; a row of chair connecting ear seat (23.3) is provided at the other end; bearings (25.1) are respectively provided on the two bearing supports (25); the rotating shaft (24) passes through the rotating shaft fixing hole (23.1) and the two ends are respectively connected to the bearings (25.1); the transmission plate (22) coincides with the central axis of the rotating shaft (24); The row chair assembly (30) comprises a row chair bracket (31), on which a certain number of chair backs (32) and corresponding flippable and foldable chair seats (33) are arranged, and the row chair connecting ear seats (23.3) are fixedly connected to the row chair bracket (31).

2. The flip folding row chair according to claim 1, characterized in that: A connecting block (14) is provided between the movable outer end of the push rod (12) and the push-connecting ear seat (21).

3. The flip folding chair according to claim 1, characterized in that: The curvature α of the transmission plate (22) is in the range of 100° to 115°, the angle of rotation from the starting point to the end point of the slide groove (22.1) along the arc surface of the transmission plate (22) is ≥90°, and when the transmission plate (22) is in a flattened state, the angle β between the slide groove (22.1) and the axis of the transmission plate (22) in the horizontal direction is in the range of 40° to 50°.

4. The flip folding row chair according to claim 1, characterized in that: The row of chair connecting ear seats (23.3) are two in number and are symmetrically arranged.

5. The flip folding row chair according to claim 1, characterized in that: Stoppers (26) are respectively provided on both sides of the transmission plate (22) located between the two bearing supports (25).

6. The flip and foldable row chair according to claim 5, characterized in that: The stopper (26) is an angle steel.

7. The flip folding row chair according to claim 1, characterized in that: The ear seat fixing holes (22.2) are divided into two groups and are respectively located on two sides of the slide groove (22.1).

8. A flip and foldable row chair according to any one of claims 1 to 7, characterized in that: It also comprises a moving step (40), on which the driving assembly (10) and the turning assembly (20) are mounted.

9. The flip and foldable row chair according to claim 8, characterized in that: A certain number of moving wheels (41) are arranged at the bottom of the moving step (40).

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