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, the seat is turned over mechanically, the control is simple, the overall dimension of the whole equipment in the width direction is reduced, the space utilization rate of a place is improved, and the diversified requirements of the market are met.

Description

Technical Field

[0001] This utility model relates to the field of row chair technology, and in particular to a flip-fold row chair. Background Technology

[0002] Seating arrangements are a primary feature in theaters, cinemas, and other similar venues. Existing seating arrangements are generally fixed in place, which no longer meets the diverse needs of the market. To achieve seat rotation, the entire system needs to meet certain dimensions in the width direction. For seats arranged front-to-back, this significantly occupies installation space in the width direction, especially in scenarios where installation space is limited and cannot be pushed forward or backward or rotated using levers. This results in low space utilization. Furthermore, fixed seating arrangements are very difficult to disassemble when not in use. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a flip-folding row of chairs with a compact structure. It uses mechanical means to flip the chairs, is easy to control, reduces the overall size of the equipment in the width direction, improves the space utilization of the venue, and meets the diversified needs of the market.

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

[0005] A folding and tilting chair assembly includes a drive assembly, a tilting assembly, and a chair assembly. The drive assembly includes a drive motor, a push rod, and a push rod mounting base. The drive motor controls the movable part of the push rod to perform linear reciprocating motion, and the push rod mounting base is used to fix the fixed part of the push rod.

[0006] The rotating assembly comprises multiple components arranged in a row, including a push-connecting lug, a transmission plate, a rotating bracket, a rotating shaft, and two bearing supports. The transmission plate is arc-shaped, with a groove and several lug fixing holes. The push-connecting lugs are fixed to the transmission plate, and adjacent push-connecting lugs are connected by a connecting rod. The push-connecting lug closest to the drive assembly is connected to the movable outer end of the push rod. The rotating bracket has a rotating shaft fixing hole in the middle, a stepped pin inserted into the groove at one end, and a seat connecting lug at the other end. Bearings are respectively mounted on the two bearing supports. The rotating shaft passes through the rotating shaft fixing hole and is connected to bearings at both ends. The transmission plate coincides with the central axis of the rotating shaft. The connecting surfaces of the push-connecting lugs and the transmission plate are also arc-shaped, ensuring a tight fit. The rotating bracket and the rotating shaft are fixed in a cross shape, and the seat connecting lugs are used to connect seats. During operation, the drive motor drives the push rod to move the transmission plate between the two bearing supports. During the movement, the slide groove generates a downward or upward component force on the step pin in contact with it, causing the tilting bracket to swing around the rotating shaft to achieve tilting.

[0007] The row of chairs includes a row of chair supports, on which a certain number of chair backs and corresponding flip-up and foldable chair seats are arranged. The chair connecting lugs are fixedly connected to the row of chair supports. The flipping of the flipping support causes the row of chairs to flip. When the flipping support is in the upright position, the chair backs are also in the upright position, and the chair seats can be lowered to sit on the chairs. When the flipping support flips down, the chair seats flip and fold together with the chair backs, and the entire row of chairs flips down synchronously.

[0008] Preferably, a connecting block is provided between the movable outer end of the push rod and the push connecting lug, which can be connected and fixed by the flange at the end.

[0009] Preferably, the arc α of the transmission plate is between 100° and 115°, the angle through which the starting point and ending point of the slide groove rotates along the arc surface of the transmission plate is ≥90°, and when the transmission plate is flattened, the angle β between the slide groove and the axis of the transmission plate in the horizontal direction is between 40° and 50°. The slide groove is diagonally inclined on the transmission plate, so that the rotation angle ranges from 0° to 90°.

[0010] Preferably, the number of connecting ear seats is two and they are arranged symmetrically for better connection and fixation of the seats.

[0011] Preferably, the transmission plate located between the two bearing supports is provided with stops on both sides to provide protection and limit movement.

[0012] Preferably, the stop is made of angle steel.

[0013] Preferably, the ear-mount fixing holes are divided into two groups, which are located on both sides of the slide groove. Accordingly, there are two push-connecting ear-mounts, which avoids interference between the flip bracket and the connecting rod when the flip bracket rotates along the slide groove.

[0014] It should be noted that there may be only one set of ear fixing holes, and the push connecting ear is fixed on the other side of the transmission plate. That is, the push connecting ear and the flip bracket are located on the two sides of the transmission plate respectively. This can also avoid interference between the flip bracket and the connecting rod when the flip bracket rotates along the slide.

[0015] Preferably, the assembly also includes a movable step, on which the drive assembly and the tilting assembly are mounted. Specifically, the drive motor and push rod mounting base of the drive assembly are mounted on the movable step, and the bearing support of the tilting assembly is mounted on the movable step.

[0016] Preferably, the bottom of the movable step is provided with a certain number of casters to facilitate the movement of the entire row of chairs.

[0017] The advantages of this utility model are: 1. The mechanism has a compact structure, and the seat flipping is achieved mechanically, making control simple;

[0018] 2. The push rod is set parallel to the central axis of the rotating shaft, which reduces the overall size of the equipment in the width direction, saves installation space in the width direction, and is suitable for use with seats arranged in front and behind. It is especially suitable for scenarios where the equipment installation space is small and cannot be pushed back and forth, and the overall flipping is achieved by using the lever principle, thereby improving the space utilization rate and meeting the diversified needs of the market.

[0019] 3. The movable steps at the bottom can be easily moved using the casters, avoiding complicated disassembly steps and making it widely applicable. Attached Figure Description

[0020] Figure 1 This is the front view of the present utility model (backrest upright, seat flat).

[0021] Figure 2 Side view of this utility model Figure 1 (The chair back is upright and the seat is folded down);

[0022] Figure 3 Side view of this utility model Figure 2 (The chair back is laid flat and the seat is folded down);

[0023] Figure 4 Top view of the drive assembly and the flipping assembly in this utility model Figure 1 (Chair assembly in upright position);

[0024] Figure 5 Top view of the drive assembly and the flipping assembly in this utility model Figure 2 (Chair assembly in a flat position);

[0025] Figure 6 This is the front view of the flipping component in this utility model. Figure 1 (Chair assembly in upright position);

[0026] Figure 7 This is the front view of the flipping component in this utility model. Figure 2 (Chair assembly in a flat position);

[0027] Figure 8 This is a schematic diagram of the transmission plate and the flipping bracket in this utility model;

[0028] Figure 9 This is a schematic diagram of the flattened transmission plate in this utility model.

[0029] Explanation of key component symbols in the diagram:

[0030] 10. Drive assembly; 11. Drive motor; 12. Push rod; 13. Push rod holder; 14. Connecting block;

[0031] 20. Flip assembly; 21. Push connecting lug; 22. Transmission plate; 22.1. Slide groove; 22.2. Lug fixing hole; 23. Flip bracket; 23.1. Rotary shaft fixing hole; 23.2. Step pin; 23.3. Chair connecting lug; 24. Rotary shaft; 25. Bearing support; 25.1. Bearing; 26. Stop; 27. Connecting rod;

[0032] 30. Chair assembly; 31. Chair frame; 32. Chair back; 33. Chair seat;

[0033] 40. Moving steps; 41. Moving wheels. Detailed Implementation

[0034] To more clearly illustrate this utility model, the following description, in conjunction with the accompanying drawings, will provide further details.

[0035] Example 1: As Figure 1-3 As shown, a flip-folding row of chairs includes a drive assembly 10, a flipping assembly 20, and a row of chairs assembly 30.

[0036] Combination Figure 4-5 As shown, the drive assembly includes a drive motor 11, a push rod 12, and a push rod mounting base 13.

[0037] Combination Figure 1 and Figure 4-7 As shown, the number of flipping components is multiple and arranged in a row, including a push connecting ear 21, a transmission plate 22, a flipping bracket 23, a rotating shaft 24, and two bearing supports 25. The transmission plate 22 is arc-shaped and has a sliding groove 22.1 and several ear fixing holes 22.2. The push connecting ear 21 is fixed on the transmission plate 22. Adjacent push connecting ear 21s are connected by a connecting rod 27, and the push connecting ear 21 closest to the drive component 10 is connected to the movable outer end of the push rod 12. The flipping bracket 23 has a rotating shaft fixing hole 23.1 in the middle, a stepped pin 23.2 inserted into the sliding groove 22.1 at one end, and a chair connecting ear 23.3 at the other end. Bearings 25.1 are respectively provided on the two bearing supports 25.1. The rotating shaft 24 passes through the rotating shaft fixing hole 23.1 and is connected to the bearings 25.1 at both ends. The central axis of the transmission plate 22 coincides with that of the rotating shaft 24.

[0038] Combination Figure 1-3As shown, the row chair assembly 30 includes a row chair support 31, on which a certain number of chair backs 32 and corresponding flip-up and foldable chair seats 33 are arranged. The row chair connecting ear seat 23.3 is fixedly connected to the row chair support 31.

[0039] Example 2: Combination Figure 4-5 As shown, based on Embodiment 1, a connecting block 14 is provided between the movable outer end of the push rod 12 and the push connecting ear seat 21.

[0040] Example 3: Combination Figure 8-9 As shown, based on Embodiment 1 or Embodiment 2, the arc α of the transmission plate 22 is between 100° and 115°, the angle through which the starting point to the ending point of the slide groove 22.1 rotates along the arc surface of the transmission plate 22 is ≥90°, the angle β between the axis of the slide groove 22.1 and the axis of the transmission plate 22 in the horizontal direction is between 40° and 50° when the transmission plate 22 is in a flattened state, and the angle range of the flipping bracket 23 is between 0° and 90°.

[0041] Example 4: Combination Figure 6-7 As shown, based on Embodiment 1, Embodiment 2 or Embodiment 3, the number of the row chair connecting ear seats 23.3 is two and they are arranged symmetrically.

[0042] Example 5: Combination Figure 6-7 As shown, based on the above embodiment, the transmission plate 22 located between the two bearing supports 25 is provided with blocks 26 on the upper and lower sides respectively, and the blocks 26 can be made of angle steel.

[0043] Example 6: Combination Figure 9 As shown, based on the above embodiment, the ear seat fixing hole 22.2 is divided into two groups and is located on both sides of the slide groove 22.1 respectively. Correspondingly, the number of the push connecting ear seats 21 is two, so as to avoid interference between the flip bracket 23 and the connecting rod 27 when it rotates along the slide groove 22.1.

[0044] Another implementation is that there may be only one set of ear fixing holes 22.2, and the push connecting ear 21 is fixed on the other side of the transmission plate 22. That is, the push connecting ear 21 and the flip bracket 23 are located on both sides of the transmission plate 22, which can also avoid interference between the flip bracket 23 and the connecting rod 27 when the flip bracket 23 rotates along the slide groove 22.1.

[0045] Example 7: Combination Figure 1-3 As shown, based on the above embodiment, a movable step 40 is also included, and the driving component 10 and the flipping component 20 are mounted on the movable step 40.

[0046] The bottom of the movable step 40 is provided with a certain number of movable wheels 41.

[0047] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. The present utility model can be used in similar products. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A reversible folding bench chair, characterised in that: It comprises a driving assembly (10), a turnover assembly (20) and a row chair assembly (30); The driving assembly (10) comprises a driving motor (11), a push rod (12) and a push rod fixing seat (13); The turnover assembly (20) is in a row and comprises a plurality of push connection lug seats (21), a transmission plate (22), a turnover support (23), a rotating shaft (24) and two bearing supports (25). The transmission plate (22) is in a circular arc shape and is provided with a sliding groove (22.1) and a plurality of lug fixing holes (22.2). The push connection lug seat (21) is fixed on the transmission plate (22), the adjacent push connection lug seats (21) are connected by connecting rods (27), the push connection lug seat (21) closest to the driving assembly (10) is connected with the movable outer end of the push rod (12), the turnover support (23) is provided with a rotating shaft fixing hole (23.1) in the middle, a stepped pin (23.2) inserted into the sliding groove (22.1) at one end and a row chair connection lug seat (23.3) at the other end, the two bearing supports (25) are respectively provided with bearings (25.1), the rotating shaft (24) passes through the rotating shaft fixing hole (23.1) and is connected with the bearings (25.1) at both ends, and the center axis of the transmission plate (22) coincides with that of the rotating shaft (24). The row chair assembly (30) comprises a row chair support (31) which is arranged with a certain number of chair backs (32) and corresponding foldable chair seats (33).

2. A reversible folding bench as claimed in claim 1, wherein: A connecting block (14) is arranged between the movable outer end of the push rod (12) and the push connection lug seat (21).

3. The reversible folding bench seat of claim 1, wherein: The arc degree α of the transmission plate (22) ranges from 100° to 115°, the angle of the starting point to the ending point of the sliding groove (22.1) along the circular arc surface of the transmission plate (22) is ≥90°, and the angle β between the sliding groove (22.1) and the axis of the transmission plate (22) in the horizontal direction ranges from 40° to 50° when the transmission plate (22) is in a flat state.

4. The reversible folding bench seat of claim 1, wherein: The number of the row chair connection lug seats (23.3) is two and they are symmetrically arranged.

5. The reversible folding bench seat of claim 1, wherein: The transmission plate (22) between the two bearing supports (25) is respectively provided with a stop block (26) on both sides.

6. A tip-up folding bench seat according to claim 5, wherein: The stop block (26) is an angle steel.

7. The reversible folding bench seat of claim 1, wherein: The lug fixing holes (22.2) are divided into two groups and are respectively arranged on both sides of the sliding groove (22.1), and the number of the corresponding push connection lug seats (21) is two.

8. A tip-up folding bench seat according to any one of claims 1 to 7, wherein: It further comprises a moving step (40), and the driving assembly (10) and the turnover assembly (20) are installed on the moving step (40).

9. A tip-up folding bench seat according to claim 8, wherein: A certain number of moving wheels (41) are arranged at the bottom of the moving step (40).

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