A telescopic stand seating connection with a safety locking mechanism

Abstract

The utility model discloses a telescopic stand seat connecting piece with safety locking mechanism belongs to stand seat connecting piece technical field, including the connecting groove of setting up on the seat of stand seat's bottom surface, and the connecting groove is along the width direction of stand stair plane and sets up, is equipped with first rack and first gear in the connecting groove, and first rack is fixedly connected with stand stair plane and is arranged in parallel with the connecting groove, and the bottom of first rack is engaged with first gear, and first gear is located the one end of connecting groove close to the back of stand seat, and the central shaft of first gear is rotatably connected with the seat, and the one end of central shaft is connected with locking assembly and is connected with the seat. The utility model discloses a telescopic stand seat connecting piece with safety locking mechanism with above -mentioned structure, can make stand seat move back and forth, to guarantee the back of stand seat to realize the folding storage to the back when the stair plane width of stand is small, can also lock stand seat to guarantee the safety when riding.

Description

Technical Field

[0001] This utility model belongs to the technical field of grandstand seat connectors, and particularly relates to a telescopic grandstand seat connector with a safety locking mechanism. Background Technology

[0002] Retractable grandstands are installed in large indoor or outdoor venues for convenient viewing of performances or games. When not in use, the grandstand retracts into a square block to reduce space usage. When extended, it becomes a stepped structure and includes seating for people to rest. To facilitate the retraction of the grandstand, the seating is designed to be foldable.

[0003] Existing seats fold by flipping the backrest forward, making it flush against the seat. To improve comfort, seats are typically designed with a certain height to allow spectators' legs to maintain a comfortable bend. However, even with the backrest folded, the overall height of the seat remains relatively high, requiring a significant height difference between adjacent stands. This results in fewer steps and fewer seats when the overall stand height is the same. To address these issues, rear-folding seats were developed, where the backrest flips backward, making it flush with the seat. However, this type of rear-folding seat presents several problems: the seat is fixed to the platform using chemical anchors, and sufficient space is needed on the rear side of the step to allow the backrest to fold backward. This results in an excessively long platform step, making the length of a retractable grandstand with a backward-folding backrest significantly longer than one with a forward-folding backrest, thus increasing the overall space required for the grandstand.

[0004] Therefore, a new type of telescopic grandstand seat connector is needed to replace chemical anchors, so that the grandstand seats can move back and forth to ensure that the grandstand seats can be folded and stored when the width of the grandstand steps is small, and the grandstand seats can be locked to ensure the safety of passengers. Utility Model Content

[0005] The purpose of this utility model is to provide a telescopic grandstand seat connector with a safety locking mechanism, which enables the grandstand seat to move back and forth to ensure that the grandstand seat can be folded and stored when the width of the grandstand steps is small, and can also lock the grandstand seat to ensure safety when riding.

[0006] To achieve the above objectives, this utility model provides a telescopic grandstand seat connector with a safety locking mechanism, including a connecting groove formed on the bottom surface of the grandstand seat. The connecting groove is arranged along the width direction of the viewing step plane. A first rack and a first gear are provided in the connecting groove. The first rack is fixedly connected to the viewing step plane and arranged parallel to the connecting groove. The bottom of the first rack is meshed with the bottom of the first gear. The first gear is located at one end of the connecting groove near the backrest of the grandstand seat, and the central axis of the first gear is rotatably connected to the seat. One end of the central axis passes through the seat and connects to the locking component.

[0007] Preferably, the locking assembly includes an upper locking block, a lower locking block, and a locking rod. The upper locking block and the lower locking block are both fixedly connected to the stool and are located above and below the central axis, respectively. The bottom surface of the upper locking block is provided with a clearance groove, and a horizontal groove communicating with the clearance groove is provided on one side surface of the upper locking block. A second gear is rotatably connected in the horizontal groove, and the end of the second gear away from the clearance groove extends out of the horizontal groove. The top surface of the lower locking block is provided with a locking groove adapted to the structure of the locking rod. A magnet is fixedly connected in the locking groove. The locking rod vertically passes through the central axis and is slidably connected to the central axis. The locking rod is made of magnetic metal. A second rack is fixedly connected to the side wall of the locking rod. The second rack meshes with the second gear. The top end of the locking rod is fixedly connected to a spring, and the other end of the spring is fixedly connected to the top surface of the clearance groove.

[0008] Preferably, the seat has a mounting groove on the side near the backrest, the mounting groove is connected to the connecting groove, a motor is fixedly connected in the mounting groove, and the output shaft of the motor is detachably connected to the end of the central shaft away from the locking component.

[0009] Preferably, the top surface of the connecting groove is fixedly connected to two parallel mounting plates, the mounting plates are provided with mounting holes, and the central shaft is rotatably connected to the two mounting holes.

[0010] Therefore, the telescopic grandstand seat connector with a safety locking mechanism of the present invention has the following beneficial effects: the cooperation of the first gear and the first rack allows the grandstand seat to move relative to the stepped plane of the grandstand. The locking component can lock the central shaft on the first gear, that is, the central shaft cannot rotate. At this time, the first gear cannot rotate and thus locks. In addition, the first rack limits the first gear, and the grandstand seat cannot move relative to the stepped plane of the grandstand, thus realizing the safety locking of the grandstand seat. Therefore, the present invention can both allow the grandstand seat to move back and forth to ensure that the backrest of the grandstand seat can be folded back and stored when the width of the stepped plane of the grandstand is small, and lock the grandstand seat to ensure the safety of riding.

[0011] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of an embodiment of a telescopic grandstand seat connector with a safety locking mechanism according to the present invention;

[0013] Figure 2 This is a schematic diagram of the structure of the central shaft in an embodiment of a telescopic grandstand seat connector with a safety locking mechanism according to this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of a locking component in a telescopic grandstand seat connector with a safety locking mechanism according to an embodiment of the present invention.

[0015] Figure 4 This is a structural diagram illustrating the usage state of a telescopic grandstand seat connector with a safety locking mechanism according to this utility model.

[0016] In the diagram: 1. Grandstand Seat; 101. Stool; 102. Backrest; 2. Connecting Groove; 3. Viewing Step Plane; 4. First Rack; 5. First Gear; 6. Central Shaft; 7. Locking Assembly; 71. Upper Locking Block; 72. Lower Locking Block; 73. Locking Rod; 74. Clearance Groove; 75. Horizontal Groove; 76. Second Gear; 77. Locking Groove; 78. Magnet; 79. Second Rack; 710. Spring; 8. Mounting Groove; 9. Motor; 10. Mounting Plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Example

[0020] Reference Figures 1-4 As shown, this embodiment provides a telescopic grandstand seat connector with a safety locking mechanism, including a connecting groove 2 formed on the bottom surface of the seat 101 of the grandstand seat 1. The connecting groove 2 is arranged along the width direction of the viewing step plane 3, and a first rack 4 and a first gear 5 are provided in the connecting groove 2. The first rack 4 is fixedly connected to the viewing step plane 3 and is arranged parallel to the connecting groove 2. The bottom of the first rack 4 and the first gear 5 are meshed. The first gear 5 is located at one end of the connecting groove 2 near the backrest 102 of the grandstand seat 1, and the central shaft 6 of the first gear 5 is rotatably connected to the seat 101. One end of the central shaft 6 extends out of the seat 101 and is connected to the locking assembly 7.

[0021] In use, after the locking component 7 unlocks the central shaft 6, the first gear 5 can rotate and move on the first rack 4, allowing relative movement between the grandstand seat 1 and the stepped plane of the grandstand. After the grandstand seat 1 moves forward, the seat 101 of the grandstand seat 1 protrudes from the stepped plane (e.g., Figure 4 (First row of grandstand seats 1), at this time the backrest 102 has enough space to fold backward, after the grandstand seat 1 moves backward, the seat 101 of the grandstand seat 1 returns to its original position (as shown in the image). Figure 4 The second row of grandstand seats 1), when the telescopic grandstand is retracted into a square block, the seats 101 of grandstand seats 1 can be completely located within the square block without taking up extra space. After the locking component 7 locks the central shaft 6, the first gear 5 cannot rotate. At this time, under the action of the first rack 4, the grandstand seats 1 and the stepped plane of the grandstand cannot move relative to each other, thus fixing the position of the grandstand seats 1 on the stepped plane of the grandstand and ensuring the safety of riding the grandstand seats 1.

[0022] In a further preferred embodiment, the locking assembly 7 includes an upper locking block 71, a lower locking block 72, and a locking rod 73. Both the upper locking block 71 and the lower locking block 72 are fixedly connected to the stool 101 and are located above and below the central shaft 6, respectively. The bottom surface of the upper locking block 71 has a clearance groove 74, and one side surface of the upper locking block 71 has a horizontal groove 75 communicating with the clearance groove 74. A second gear 76 is rotatably connected within the horizontal groove 75, with one end of the second gear 76 extending out of the horizontal groove 75 away from the clearance groove 74. The top surface of the lower locking block 72 has a locking groove 77 adapted to the structure of the locking rod 73, and a magnet 78 is fixedly connected within the locking groove 77. The locking rod 73 vertically penetrates the central shaft 6 and is slidably connected to it. The locking rod 73 is made of magnetic metal. A second rack 79 is fixedly connected to the side wall of the locking rod 73, and the second rack 79 meshes with the second gear 76. The top end of the locking lever 73 is fixedly connected to the spring 710, and the other end of the spring 710 is fixedly connected to the top surface of the relief groove 74.

[0023] In use, manually rotating the second gear 76 drives the second rack 79 downward, causing the locking rod 73 to move downward through the central shaft 6 until the bottom of the locking rod 73 enters the locking groove 77. Due to the magnetic attraction between the magnet 78 in the locking groove 77 and the locking rod 73, the locking rod 73 overcomes the tension of the spring 710 and is fixed in the locking groove 77. At this time, the central shaft 6 cannot rotate, thus fixing the position of the grandstand seat 1 on the stepped plane of the grandstand. Manually rotating the second gear 76 drives the second rack 79 upward, causing the locking rod 73 to overcome the magnetic attraction between it and the magnet 78 and move upward. Then, under the action of the spring 710, the locking rod 73 continues to move upward until the bottom of the locking rod 73 passes through the central shaft 6 and is above the central shaft 6. At this time, the locking rod 73 loses its locking function on the central shaft 6, the central shaft 6 can rotate, and the grandstand seat 1 can move relative to the stepped plane of the grandstand.

[0024] In a further optimized design, a mounting groove 8 is provided on the side of the stool 101 near the backrest 102. The mounting groove 8 is connected to the connecting groove 2. A motor 9 is fixedly connected in the mounting groove 8. The output shaft of the motor 9 is detachably connected to the end of the central shaft 6 away from the locking component 7.

[0025] In use, the switch for motor 9 is fixed to the seat 101. The switch is used to start and stop motor 9. After motor 9 starts, it drives the central shaft 6 to rotate, which in turn drives the first gear 5 to rotate, realizing the relative movement between the grandstand seat 1 and the stepped plane of the grandstand. Using motor 9 to drive the grandstand seat 1 instead of manually moving it saves time and effort.

[0026] In a further optimized design, two parallel mounting plates 10 are fixedly connected to the top surface of the connecting groove 2. The mounting plates 10 are provided with mounting holes, and the central shaft 6 is rotatably connected to the two mounting holes.

[0027] In use, the two mounting plates 10 can support the central shaft 6, improve the stability of the first gear 5 in the connecting groove 2, and thus ensure that the first gear 5 can move stably on the first rack 4. The central shaft 6 can be a segmented structure including a left segment and a right segment. The two ends of the right segment are rotatably connected to two mounting holes, and each end of the right segment is threaded with a limit bolt. The two limit bolts are located on the opposite sides of the two mounting plates 10. One end of the left segment is threaded to the right segment, and the other end of the left segment passes through the seat 101 and connects to the locking assembly 7.

[0028] Therefore, the present invention provides a telescopic grandstand seat connector with a safety locking mechanism that adopts the above-mentioned structure. This not only allows the grandstand seat 1 to move back and forth to ensure that the backrest 102 of the grandstand seat 1 can be folded back and stored when the width of the grandstand steps is small, but also locks the grandstand seat 1 to ensure safety when riding.

[0029] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A telescopic grandstand seat connector with a safety locking mechanism, characterized in that: The system includes a connecting groove (2) on the bottom surface of the bench (101) of the grandstand seat (1). The connecting groove (2) is set along the width direction of the viewing step plane (3). The connecting groove (2) is provided with a first rack (4) and a first gear (5). The first rack (4) is fixedly connected to the viewing step plane (3) and is set parallel to the connecting groove (2). The first rack (4) is meshed with the bottom of the first gear (5). The first gear (5) is located at one end of the connecting groove (2) near the backrest (102) of the grandstand seat (1). The central shaft (6) of the first gear (5) is rotatably connected to the bench (101). One end of the central shaft (6) passes through the bench (101) and is connected to the locking assembly (7).

2. The telescopic grandstand seat connector with a safety locking mechanism according to claim 1, characterized in that: The locking assembly (7) includes an upper locking block (71), a lower locking block (72), and a locking rod (73). The upper locking block (71) and the lower locking block (72) are both fixedly connected to the stool (101) and are located above and below the central axis (6), respectively. The bottom surface of the upper locking block (71) is provided with a relief groove (74), and one side surface of the upper locking block (71) is provided with a horizontal groove (75) communicating with the relief groove (74). A second gear (76) is rotatably connected in the horizontal groove (75), and one end of the second gear (76) away from the relief groove (74) extends out of the horizontal groove (75). The lower locking... The top surface of the fixed block (72) is provided with a locking groove (77) that is adapted to the structure of the locking rod (73). A magnet (78) is fixedly connected in the locking groove (77). The locking rod (73) vertically passes through the central shaft (6) and is slidably connected to the central shaft (6). The locking rod (73) is made of magnetic metal. A second rack (79) is fixedly connected to the side wall of the locking rod (73). The second rack (79) meshes with the second gear (76). The top end of the locking rod (73) is fixedly connected to the spring (710). The other end of the spring (710) is fixedly connected to the top surface of the relief groove (74).

3. The telescopic grandstand seat connector with a safety locking mechanism according to claim 1, characterized in that: The seat (101) has an installation groove (8) on one side near the backrest (102). The installation groove (8) is connected to the connecting groove (2). A motor (9) is fixedly connected in the installation groove (8). The output shaft of the motor (9) is detachably connected to the end of the central shaft (6) away from the locking component (7).

4. The telescopic grandstand seat connector with a safety locking mechanism according to claim 1, characterized in that: The top surface of the connecting groove (2) is fixedly connected to two parallel mounting plates (10), the mounting plates (10) are provided with mounting holes, and the central shaft (6) is rotatably connected to the two mounting holes.

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