Modularized quickly-mounted seat for stadium

Abstract

The modular rapid installation seat for the stadium comprises a step body, a rear side step is fixedly installed on the back face of the upper end face of the step body, a front side step is fixedly connected to the lower end of the front face of the step body, and the upper end of the front side step is movably sleeved with a cover plate; telescopic springs are fixedly installed on the left side and the right side of the back face of the cover plate correspondingly, and the ends, away from the cover plate, of the telescopic springs are fixedly connected with the inner wall of the step body. According to the modular rapid installation seat for the stadium, through cooperation of the back chair, the rear side step, the rectangular block, the clamping block, the adjusting assembly and the inserting rod, the moving effect of the inserting rod is achieved through the arrangement of the adjusting assembly, the connecting mode of the inserting rod and the rectangular block is changed, when the inserting rod is separated from the rectangular block, the back chair can be detached from the rear side step, and the clamping block can be detached from the clamping block; and when the insertion rod is inserted into the rectangular block, the back chair can be mounted on the rear side step, so that the chair can be independently replaced, and the replacement steps of the chair are simplified.

Description

Technical Field

[0001] The invention relates to the technical field of stadium seat installation, in particular to modular quick-installation seats for stadiums. Background Art

[0002] With the progress of society and the development of science and technology, people are paying more and more attention to sports. Various types of sports venues such as stadiums, gyms, and sports clubs are also increasing. Among them, sports venues are places used for sports competitions, training, fitness, and large-scale events. They can be divided into various types according to their functions, scale, and design. Gymnasiums can be divided into two categories according to their use: competition venues and practice venues; they can be divided into basketball venues, ice hockey venues, track and field venues, etc.; they can be divided into large, medium, and small according to their size. Generally, they are divided by the number of spectator seats. Stadiums with more than 8,000 seats are called large stadiums, those with less than 3,000 seats are called small stadiums, and those in between are called medium stadiums. In order to facilitate the viewing of sports events in stadiums and increase the comfort of spectators watching sports competitions, several seats are installed in stadiums for spectators to use.

[0003] However, the seats in existing stadiums are installed in a fixed or simple assembly structure. When the seats are installed in a fixed manner, the construction period for seat installation is long and the layout cannot be flexibly adjusted. After a long period of use, if one of the seats is damaged, the entire seat needs to be replaced. At this time, in the process of replacing the entire seat, the undamaged seats will be replaced at the same time as the damaged seats, which not only increases the cost of seat replacement, but also leads to waste after the undamaged seats are removed; when the seats are installed in a simple assembly structure connected by bolts, as the bolts are used for a long time, the bolts fixing the seats will become loose or even fall off the seats, resulting in a decrease in seat stability. Summary of the Invention

[0004] The present invention provides modular quick-installation seats for sports stadiums, solving the problems raised by the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a modular quick-installation seat for a sports stadium, comprising a step body, wherein a rear step is fixedly installed on the back of the upper end surface of the step body, and the lower end of the front surface of the step body is fixedly connected to the front step, and the upper end of the front step is movably sleeved with a cover plate, and the left and right sides of the back surface of the cover plate are respectively fixedly installed with a telescopic spring, and one end of the telescopic spring away from the cover plate is fixedly connected to the inner wall of the step body through a spring buckle. The left and right sides of the front surface of the cover plate are respectively movably connected to the front step through a spring buckle, and the left and right sides of the front surface of the rear step are movably installed with a backrest through an insertion rod, and the lower end of the backrest is movably connected to the seat above the cover plate, and an adjustment component located in front of the rear step is provided on the inner side of the insertion rod, and a rotating rod is fixedly sleeved on the inner wall of the adjusting component, and a limiting component for limiting the movement state of the adjusting component is provided on the upper end of the outer wall of the rotating rod.

[0006] Optionally, a bottom plate is fixedly installed at the lower end of the front step, and the back side of the bottom plate is fixedly connected to the front side of the rear step, a storage cavity is opened inside the front step, and a visual window located in front of the storage cavity is fixedly installed on the front side of the front step, and grooves located on the left and right sides of the inner wall of the front step are respectively opened on the left and right sides of the cover plate, and external mounting rods are fixedly installed on the left and right sides of the front side of the front step, and an annular block is fixedly connected to the end of the external mounting rod away from the front step, and the annular block is movably connected to the spring buckle, and positioning blocks located under the seat are fixedly installed on the left and right sides of the upper end surface of the front step.

[0007] Optionally, protruding rods are fixedly installed on the left and right sides of the cover plate, and the end of the protruding rod away from the cover plate is movably connected to the inner wall of the groove, the upper end of the cover plate is fixedly installed with a baffle located in front of the rear step, the front side of the cover plate is fixedly connected to an extension plate, and inner mounting rods are fixedly installed on the left and right sides of the front side of the extension plate, and the end of the inner mounting rod away from the extension plate is fixedly connected to a circular block for installing a spring clip, and the circular block is located on the inner side of the annular block.

[0008] Optionally, a sleeve rod is fixedly installed on the back of the seat, and a round rod is movably sleeved on the inner wall of the sleeve rod. Outer plates are fixedly sleeved on the left and right sides of the round rod, and the rear end of the outer plates is fixedly connected to the front of the backrest. Protrusions are respectively fixedly installed on the left and right sides of the lower end surface of the seat, and the outer walls of the protrusions are movably engaged with the inner wall of the positioning block.

[0009] Optionally, a cylinder located on the right side of the spring buckle is fixedly mounted on the upper end of the circular block, a movable plate is movably sleeved on the outer wall of the cylinder, and a column located above the movable plate is fixedly mounted on the upper end of the cylinder.

[0010] Optionally, the upper end surface of the bottom plate is configured as an inclined plate with a lower front and a higher rear, and water outlet holes are evenly distributed on the front surface of the bottom plate.

[0011] Optionally, the left and right sides of the front face of the rear step are respectively fixed with locking blocks located behind the backrest, and the inner walls of the locking blocks are movably engaged with the outer walls of the insertion rods, and a horizontal plate is fixedly installed between two adjacent locking blocks, and a reinforcement rod is fixedly connected to the middle part of the upper end face of the horizontal plate, and a box located outside the adjustment component is fixedly installed on the end of the reinforcement rod away from the horizontal plate, and the upper end face of the box is fixedly connected to a shell located below the limit assembly, and the inner wall of the shell is movably engaged with the outer wall of the rotating rod.

[0012] Optionally, connecting rods are fixedly installed on the left and right sides of the back of the backrest, and the end of the connecting rod away from the backrest is fixedly connected to a mounting plate. A rectangular block is fixedly installed on the rear end of the mounting plate, and the outer wall of the rectangular block is movably connected to the inner wall of the locking block through an insertion rod.

[0013] Optionally, the adjusting assembly includes a spur gear, a first ruler bar and a second ruler bar, the inner wall of the spur gear is fixedly sleeved with the outer wall of the lower end of the rotating rod, the front face of the spur gear is meshed with the back teeth of the first ruler bar, and the back face of the spur gear is meshed with the front teeth of the second ruler bar, the outer ends of the first ruler bar and the second ruler bar are fixedly installed with inner side plates, the left end of the inner side plate on the left is fixedly connected to the right end of the left insertion rod, and the right end of the inner side plate on the right is fixedly connected to the left end of the right insertion rod, the front face of the first ruler bar and the back face of the second ruler bar are fixedly installed with sliding rods, and the outer walls of the sliding rods are slidably connected to the inner wall of the box.

[0014] Optionally, the limit assembly includes a limit gear and a limit block, the limit block is movably engaged between two adjacent teeth on the right side of the limit gear, the inner wall of the limit gear is fixedly sleeved with the outer wall of the upper end of the rotating rod, the right side of the limit block is movably connected with a threaded rod, the end of the threaded rod away from the limit block is fixedly installed with a turntable, the outer wall of the threaded rod is threadedly sleeved with a support plate located between the limit block and the turntable, and the left end of the support plate is fixedly connected to the upper end of the right side of the shell.

[0015] The present invention has the following beneficial effects: 1. The modular quick-installation seats in the stadium realize the movement of the plug rod through the coordination between the backrest, rear steps, rectangular blocks, snap blocks, adjustment components and plug rods, and utilize the setting of the adjustment components. By changing the connection method between the plug rod and the rectangular block, when the plug rod is separated from the rectangular block, the backrest can be removed from the rear steps. When the plug rod is connected to the rectangular block, the backrest can be installed on the rear steps, so that the seats can not only be replaced individually, but also the seat replacement steps are simplified.

[0016] 2. The modular quick-installation seats in the sports stadium realize the limiting effect of the adjusting assembly through the cooperation between the backrest, adjustment assembly, limit assembly and rotating rod, and utilize the setting of the limit assembly. Since the limit assembly includes a limit gear and a limit block, when the limit gear is separated from the limit block, the rotation of the rotating rod can drive the movement of the insertion rod, so that the insertion rod is separated from the rectangular block. When the limit gear is engaged with the limit block, the rotating rod cannot rotate, thereby strengthening the tightness of the backrest after installation.

[0017] 3. The stadium has modular quick-install seats. Through the coordination between the seats, storage cavity, front steps and cover plates, and by utilizing the opening of the storage cavity, the audience's personal belongings can be stored. The audience can place their personal belongings inside the storage cavity, which not only makes it convenient for the audience to watch the event, but also does not hinder the passage of other spectators. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a side view of the rear step in the structure of the present invention; Figure 3 In the structure of the present invention Figure 2 A magnified view of point A; Figure 4 A top view of the seat in the structure of the present invention; Figure 5 A top view of the cover plate in the structure of the present invention; Figure 6 In the structure of the present invention Figure 5 An enlarged view of point B; Figure 7 is a cross-sectional view of the telescopic spring of the present invention; Figure 8 It is a cross-sectional view of the spring buckle in the structure of the present invention; Figure 9 It is a side view of the engaging block in the structure of the present invention; Figure 10 It is a bottom view of the sleeve rod in the structure of the present invention; Figure 11 It is a front view of the movable plate in the structure of the present invention; Figure 12 It is a top view of the adjustment component in the structure of the present invention.

[0019] Description of reference numerals: 1. Step body; 2. Front step; 3. Rear step; 4. Cover; 5. Telescopic spring; 6. Spring buckle; 7. Backrest; 8. Seat; 9. Insert rod; 10. Adjustment assembly; 101. Spur gear; 102. First ruler; 103. Second ruler; 11. Rotating rod; 12. Limit assembly; 121. Limit gear; 122. Limit block; 13. Bottom plate; 14. Storage cavity; 15. Viewing window; 16. Groove; 17. External mounting rod; 18. Ring block; 19. Positioning block; 20. , protruding rod; 21, baffle; 22, extension plate; 23, inner mounting rod; 24, circular block; 25, locking block; 26, horizontal plate; 27, reinforcement rod; 28, box body; 29, shell; 30, connecting rod; 31, mounting plate; 32, rectangular block; 33, protruding block; 34, sleeve rod; 35, round rod; 36, outer plate; 37, threaded rod; 38, turntable; 39, support plate; 40, cylinder; 41, movable plate; 42, column; 43, inclined plate; 44, water outlet; 45, sliding rod; 46, inner plate. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1 、 Figure 3 and Figure 8The present invention provides a technical solution: a modular quick-installation seat for a stadium, comprising a step body 1, the step body 1 is provided with a support and platform for the installation of the rear step 3 and the front step 2, while the back chair 7 is installed on the step body 1 through the rear step 3, and the seat 8 is installed on the step body 1 through the front step 2. The back of the upper end surface of the step body 1 is fixedly installed with the rear step 3, and the lower end of the front surface of the step body 1 is fixedly connected to the front step 2. The upper end of the front step 2 is movably sleeved with a cover plate 4, and the movably sleeved connection method allows the cover plate 4 to be opened or closed on the front step 2. After the cover plate 4 is closed, it plays a sealing role in the storage cavity 14. After the cover plate 4 is opened, it is convenient for the spectators to take out or put in their carry-on items from the storage cavity 14. The left and right sides of the back surface of the cover plate 4 are respectively fixedly installed with telescopic springs 5, and the end of the telescopic spring 5 away from the cover plate 4 is fixedly connected to the inner wall of the step body 1. The setting of the telescopic spring 5 plays a role in connecting the cover plate 4 with the step body 1. The two sides are movably connected to the front step 2 by spring buckles 6 respectively. By changing the connection mode of the spring buckle 6 and the front step 2, it is convenient to open or close the cover 4. The left and right sides of the front of the rear step 3 are movably installed with back chairs 7 through insertion rods 9. By changing the connection mode of the insertion rods 9 and the back chair 7, the installation or removal of the back chair 7 can be achieved, thereby facilitating the replacement of the independent back chair 7. The lower end of the back chair 7 is movably connected to the seat 8 located above the cover 4, and the inner side of the insertion rod 9 is provided with a backrest 8 located on the rear side. The adjustment component 10 in front of the step 3 is provided with a setting function to adjust the horizontal use position of the insertion rod 9. The inner wall of the adjustment component 10 is fixedly sleeved with a rotating rod 11. The setting of the rotating rod 11 not only provides a platform for the installation of the adjustment component 10, but also provides power for the movement of the adjustment component 10. The upper end of the outer wall of the rotating rod 11 is provided with a limit component 12 for limiting the movement state of the adjustment component 10. The limit component 12 limits the rotation state of the rotating rod 11.

[0022] The lower end of the front step 2 is fixedly installed with a bottom plate 13, and the back of the bottom plate 13 is fixedly connected to the front of the rear step 3. A storage cavity 14 is opened inside the front step 2. The storage cavity 14 provides space for storing the audience's carry-on items, which is not only convenient for storing the carry-on items, but also does not hinder the audience's walking after the carry-on items are stored. A visual window 15 is fixedly installed on the front of the front step 2 in front of the storage cavity 14. The audience can observe the inside of the storage cavity 14 through the visual window 15 to prevent the audience from carrying the carry-on items when walking. In order to prevent the carry-on items from being left behind, grooves 16 are respectively opened on the left and right sides of the inner wall of the front step 2, and are located on the left and right sides of the cover plate 4. External mounting rods 17 are respectively fixedly installed on the left and right sides of the front surface of the front step 2. An annular block 18 is fixedly connected to the end of the external mounting rod 17 away from the front step 2, and the annular block 18 is movably connected to the spring clip 6. By changing the connection method between the spring clip 6 and the annular block 18, the movement position of the cover plate 4 is easily controlled. Positioning blocks 19 located below the seat 8 are respectively fixedly installed on the left and right sides of the upper end surface of the front step 2.

[0023] The left and right sides of the cover plate 4 are respectively fixedly mounted with protruding rods 20, and one end of the protruding rod 20 away from the cover plate 4 is movably sleeved with the inner wall of the groove 16. The movement of the protruding rod 20 inside the groove 16 strengthens the stability of the cover plate 4 in the front step 2 and the step body 1. The upper end of the cover plate 4 is fixedly mounted with a baffle 21 located in front of the rear step 3. The installation of the baffle 21 limits the moving position of the cover plate 4, thereby facilitating the control of the use position of the cover plate 4. Subsequently, after the audience places the carry-on items inside the storage cavity 14, the telescopic spring 5 is stretched to drive the movement of the cover plate 4, and the movable plate 41 is rotated to separate the movable plate 41 from the circular block 24. The spring clip 6 is used to pop out from the inside of the circular block 24 to the The outside of the annular block 18 at the upper end can realize the connection between the circular block 24 and the annular block 18 by the spring clip 6. At this time, the cover 4 is in a closed state, and the rotation of the sleeve rod 34 on the round rod 35 makes the seat 8 convenient for the audience to use. The installation of the baffle 21 limits the movement position of the cover 4 after it is opened. At the same time, the baffle 21 is also convenient for controlling the opening and closing of the cover 4. The front of the cover 4 is fixedly connected to the extension plate 22, and the left and right sides of the front of the extension plate 22 are respectively fixedly installed with inner mounting rods 23. The end of the inner mounting rod 23 away from the extension plate 22 is fixedly connected to a circular block 24 for installing the spring clip 6, and the circular block 24 is located on the inner side of the annular block 18. The setting of the circular block 24 provides a platform for the installation of the spring clip 6.

[0024] See also Figure 2 、 Figure 9 and Figure 11A sleeve rod 34 is fixedly installed on the back of the seat 8, and a round rod 35 is movably sleeved on the inner wall of the sleeve rod 34. By rotating the sleeve rod 34 on the round rod 35, the seat 8 can be flipped at the bottom of the backrest 7. The left and right sides of the round rod 35 are fixedly sleeved with outer plates 36, and the rear end of the outer plate 36 is fixedly connected to the front of the backrest 7. The setting of the outer plate 36 serves to connect the round rod 35 and the backrest 7. The left and right sides of the lower end surface of the seat 8 are respectively fixedly installed with protrusions 33, and the outer wall of the protrusion 33 is movably engaged with the inner wall of the positioning block 19.

[0025] The upper end of the circular block 24 is fixedly mounted with a cylinder 40 located on the right side of the spring clip 6, and the outer wall of the cylinder 40 is movably connected with a movable plate 41. By utilizing the rotation of the movable plate 41 on the cylinder 40, when the movable plate 41 moves onto the circular block 24, the spring clip 6 can be compressed and retracted into the inside of the circular block 24. When the movable plate 41 moves to the upper side of the circular block 24, the spring clip 6 is ejected from the inside of the circular block 24 by utilizing its own rebound. The upper end of the cylinder 40 is fixedly mounted with a column 42 located above the movable plate 41. The setting of the column 42 limits the moving position of the movable plate 41 on the column 42, preventing the movable plate 41 from falling off from the column 42.

[0026] See also Figure 4 、 Figure 5 and Figure 7 The upper end surface of the bottom plate 13 is set as an inclined plate 43 with a low front and a high rear. The inclined plate 43 with a low front and a high rear can drain rainwater that falls into the front step 2 when the front step 2 is used outdoors. Water outlet holes 44 are evenly distributed on the front side of the bottom plate 13. The opening of the water outlet holes 44 provides a channel for the drainage of rainwater in the front step 2.

[0027] The left and right sides of the front of the rear step 3 are respectively fixedly installed with a locking block 25 located behind the backrest 7, and the inner wall of the locking block 25 is movably engaged with the outer wall of the insertion rod 9, which facilitates the disassembly of the backrest 7 from the rear step 3. By changing the connection mode of the insertion rod 9 and the locking block 25, a cross plate 26 is fixedly installed between the two adjacent locking blocks 25. The setting of the cross plate 26 serves to intercept the two adjacent locking blocks 25. The middle part of the upper end surface of the cross plate 26 is fixedly connected with a reinforcing rod 27. The installation of the reinforcing rod 27 serves to connect the box body 28 with the cross plate 26. The end of the reinforcing rod 27 away from the cross plate 26 is fixedly installed with a box body 28 located outside the adjustment component 10. The installation of the box body 28 provides a platform and space for the installation and movement of the adjustment component 10. The upper end surface of the box body 28 is fixedly connected with a shell body 29 located below the limit component 12, and the inner wall of the shell body 29 is movably sleeved with the outer wall of the rotating rod 11.

[0028] Connecting rods 30 are fixedly installed on the left and right sides of the back of the back chair 7, and the end of the connecting rod 30 away from the back chair 7 is fixedly connected to the mounting plate 31. The setting of the connecting rod 30 and the mounting plate 31 serves to connect the rectangular block 32 and the back chair 7. The rear end of the mounting plate 31 is fixedly installed with a rectangular block 32, and the outer wall of the rectangular block 32 is movably connected to the inner wall of the locking block 25 through the insertion rod 9. By changing the connection method between the insertion rod 9 and the rectangular block 32, the back chair 7 can be disassembled or installed, and the damaged back chair 7 can be replaced.

[0029] See also Figure 12 、 Figure 10 and Figure 6 The adjustment assembly 10 includes a spur gear 101, a first ruler bar 102 and a second ruler bar 103. When the backrest chair 7 and the seat 8 need to be replaced, the spur gear 101 and the first ruler bar 102 are separated. By rotating the rotating rod 11, the insertion rod 9 is pulled out from the inside of the rectangular block 32, and the rectangular block 32 and the engaging block 25 are separated to achieve the disassembly of the backrest chair 7 and the seat 8. The inner wall of the spur gear 101 is fixedly sleeved with the outer wall of the lower end of the rotating rod 11. The front of the spur gear 101 is meshed with the back tooth pattern of the first ruler bar 102, and the back of the spur gear 101 is meshed with the front tooth pattern of the second ruler bar 103. The tooth meshing connection mode makes the circumferential rotation of the spur gear 101 drive The first ruler bar 102 and the second ruler bar 103 move in the horizontal direction, thereby realizing the movement of the insertion rods 9 on the left and right sides. The outer ends of the first ruler bar 102 and the second ruler bar 103 are fixedly installed with inner plates 46. The left end of the inner plate 46 on the left is fixedly connected to the right end of the insertion rod 9 on the left, and the right end of the inner plate 46 on the right is fixedly connected to the left end of the insertion rod 9 on the right. The front side of the first ruler bar 102 and the back side of the second ruler bar 103 are fixedly installed with sliding rods 45, and the outer wall of the sliding rod 45 is slidably connected to the inner wall of the box body 28. The sliding of the sliding rod 45 inside the box body 28 reinforces the stability of the horizontal movement of the first ruler bar 102 and the second ruler bar 103.

[0030] When the limit block 122 is engaged with the limit gear 121, the rotating rod 11 cannot rotate. When the limit block 122 is separated from the limit gear 121, the rotating rod 11 can rotate. The inner wall of the limit gear 121 is fixedly sleeved with the outer wall of the upper end of the rotating rod 11. The right side of the limit block 122 is movably connected to the threaded rod 37. The end of the threaded rod 37 away from the limit block 122 is fixedly installed with a turntable 38. The outer wall of the threaded rod 37 is threadedly sleeved with a support plate 39 located between the limit block 122 and the turntable 38, and the left end of the support plate 39 is fixedly connected to the upper end of the right side of the shell 29. The threaded sleeve connection mode enables the threaded rod 37 to rotate circumferentially while driving its horizontal movement, thereby achieving the change of the connection mode between the limit block 122 and the limit gear 121.

[0031] In summary, the modular quick-installation seats of the sports stadium are used. First, the backrest 7 and the seat 8 are installed, the rectangular block 32 is inserted into the inside of the engaging block 25, and the rotating rod 11 is rotated. The rotation of the rotating rod 11 drives the spur gear 101 to rotate at the same time. Since the front side of the spur gear 101 is meshed with the rear side teeth of the first ruler bar 102, and the rear side of the spur gear 101 is meshed with the front side teeth of the second ruler bar 103, the spur gear 101 rotates in a circular direction while driving the horizontal movement of the first ruler bar 102 and the second ruler bar 103. The simultaneous outward movement of the first ruler bar 102 and the second ruler bar 103 drives the movement of the insertion rod 9 through the connection of the inner plate 46 until the insertion rod 9 is aligned with the engaging block 25 and the rectangular block. By plugging in the block 32, the back chair 7 can be fixed on the rear step 3, and then the threaded rod 37 is rotated by the turntable 38. Due to the threaded sleeve connection between the threaded rod 37 and the support plate 39, the threaded rod 37 rotates in a circular motion and realizes its horizontal movement. While the threaded rod 37 moves, it drives the limit block 122 to move in the direction of the limit gear 121 until the limit block 122 is stuck between the two adjacent teeth on the right side of the limit gear 121. At this time, the rotation state of the rotating rod 11 is restricted, thereby increasing the tightness of the connection between the plug rod 9 and the engaging block 25 and the rectangular block 32, and the installation effect of the back chair 7 and the seat 8 can be achieved. Then, when the back chair 7 and the seat 8 are in use, the audience can place their carry-on items in the storage box. Inside the cavity 14, press the spring buckle 6 to move inside the circular block 24, so that the spring buckle 6 is separated from the annular block 18 on the upper side and then the spring buckle 6 is completely pressed into the inside of the circular block 24. The movable plate 41 is rotated on the cylinder 40 to make the cylinder 40 rotate and cover the circular block 24. At this time, the cylinder 40 can place the spring buckle 6 to pop out from the inside of the circular block 24, and the use position of the cover plate 4 can be changed. The rebound of the telescopic spring 5 is used to retract the cover plate 4 to the inside of the rear step 3. At this time, the installation of the baffle 21 is used to limit the moving position of the cover plate 4, thereby facilitating the control of the use position of the cover plate 4. Subsequently, the audience places the carry-on items inside the storage cavity 14 and stretches the telescopic spring 5. The compression spring 5 drives the movement of the cover plate 4, rotates the movable plate 41, and separates the movable plate 41 from the circular block 24. The spring clip 6 is used to pop out the spring clip 6 from the inside of the circular block 24 to the outside of the annular block 18 at the upper end, so that the spring clip 6 can connect the circular block 24 with the annular block 18. At this time, the cover plate 4 is in a closed state, and the rotation of the sleeve rod 34 on the round rod 35 makes the seat 8 convenient for the audience to use. Finally, when the back chair 7 and the seat 8 need to be replaced, the spur gear 101 and the first ruler 102 are separated, and the rotation of the rotating rod 11 is used to make the insertion rod 9 out of the inside of the rectangular block 32, so that the rectangular block 32 and the engaging block 25 can be separated, thereby achieving the disassembly of the back chair 7 and the seat 8.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A modular quick-installation seat for sports stadiums, comprising a step body (1), characterized in that: The back of the upper end face of the step body (1) is fixedly mounted with a rear step (3), the lower end of the front face of the step body (1) is fixedly connected with a front step (2), the upper end of the front step (2) is movably sleeved with a cover plate (4), and telescopic springs (5) are respectively fixedly mounted on the left and right sides of the back face of the cover plate (4), and one end of the telescopic spring (5) away from the cover plate (4) is fixedly connected to the inner wall of the step body (1), and the left and right sides of the front face of the cover plate (4) are respectively connected to the front step (2) through spring buckles (6). The rear step (3) is movably connected, and a backrest (7) is movably installed on both sides of the front side of the rear step (3) through an insertion rod (9). The lower end of the backrest (7) is movably connected to a seat (8) located above the cover plate (4). The inner side of the insertion rod (9) is provided with an adjustment component (10) located in front of the rear step (3). The inner wall of the adjustment component (10) is fixedly sleeved with a rotating rod (11). The upper end of the outer wall of the rotating rod (11) is provided with a limit component (12) for limiting the movement state of the adjustment component (10).

2. The modular quick-installation seat for sports stadiums according to claim 1, characterized in that: A bottom plate (13) is fixedly mounted on the lower end of the front step (2), and the back side of the bottom plate (13) is fixedly connected to the front side of the rear step (3). A storage cavity (14) is provided inside the front step (2), and a visual window (15) located in front of the storage cavity (14) is fixedly mounted on the front side of the front step (2). Grooves (16) located on the left and right sides of the cover plate (4) are respectively provided on the left and right sides of the inner wall of the front step (2). External mounting rods (17) are respectively fixedly mounted on the left and right sides of the front side of the front step (2). An end of the external mounting rod (17) away from the front step (2) is fixedly connected to an annular block (18), and the annular block (18) is movably connected to the spring buckle (6). Positioning blocks (19) located below the seat (8) are respectively fixedly mounted on the left and right sides of the upper end surface of the front step (2).

3. The modular quick-installation seat for sports stadiums according to claim 2, characterized in that: The left and right sides of the cover plate (4) are respectively fixedly mounted with convex rods (20), and one end of the convex rod (20) away from the cover plate (4) is movably sleeved with the inner wall of the groove (16), the upper end of the cover plate (4) is fixedly mounted with a baffle (21) located in front of the rear step (3), the front of the cover plate (4) is fixedly connected with an extension plate (22), the left and right sides of the front of the extension plate (22) are respectively fixedly mounted with inner mounting rods (23), the end of the inner mounting rod (23) away from the extension plate (22) is fixedly connected with a circular block (24) for mounting a spring buckle (6), and the circular block (24) is located on the inner side of the annular block (18).

4. The modular quick-installation seat for sports stadiums according to claim 2, characterized in that: A sleeve rod (34) is fixedly mounted on the back of the seat (8), a round rod (35) is movably sleeved on the inner wall of the sleeve rod (34), an outer plate (36) is fixedly sleeved on the left and right sides of the round rod (35), and the rear end of the outer plate (36) is fixedly connected to the front of the backrest (7), and a protrusion (33) is fixedly mounted on the left and right sides of the lower end surface of the seat (8), and the outer wall of the protrusion (33) is movably engaged with the inner wall of the positioning block (19).

5. The modular quick-installation seat for sports stadiums according to claim 3, characterized in that: A cylinder (40) located on the right side of the spring buckle (6) is fixedly mounted on the upper end of the circular block (24); a movable plate (41) is movably sleeved on the outer wall of the cylinder (40); and a column (42) located above the movable plate (41) is fixedly mounted on the upper end of the cylinder (40).

6. The modular quick-installation seat for sports stadiums according to claim 2, characterized in that: The upper end surface of the bottom plate (13) is configured as an inclined plate (43) with a lower front and a higher rear, and water outlet holes (44) are evenly distributed on the front surface of the bottom plate (13).

7. The modular quick-installation seat for sports stadiums according to claim 1, characterized in that: The left and right sides of the front of the rear step (3) are respectively fixedly mounted with a snap-fit ​​block (25) located behind the backrest (7), and the inner wall of the snap-fit ​​block (25) is movably engaged with the outer wall of the insertion rod (9), and a horizontal plate (26) is fixedly mounted between two adjacent snap-fit ​​blocks (25), and a reinforcing rod (27) is fixedly connected to the middle of the upper end surface of the horizontal plate (26), and a box (28) located outside the adjustment component (10) is fixedly mounted on one end of the reinforcing rod (27) away from the horizontal plate (26), and the upper end surface of the box (28) is fixedly connected to a shell (29) located below the limit component (12), and the inner wall of the shell (29) is movably engaged with the outer wall of the rotating rod (11).

8. The modular quick-installation seat for sports stadiums according to claim 7, characterized in that: Connecting rods (30) are fixedly mounted on the left and right sides of the back of the backrest (7), respectively. One end of the connecting rod (30) away from the backrest (7) is fixedly connected to a mounting plate (31). A rectangular block (32) is fixedly mounted on the rear end of the mounting plate (31), and the outer wall of the rectangular block (32) is movably engaged with the inner wall of the engaging block (25) via an inserting rod (9).

9. The modular quick-installation seat for sports stadiums according to claim 7, characterized in that: The adjusting assembly (10) comprises a spur gear (101), a first ruler bar (102) and a second ruler bar (103), wherein the inner wall of the spur gear (101) is fixedly sleeved with the outer wall of the lower end of the rotating rod (11), the front surface of the spur gear (101) is meshed with the tooth pattern of the back surface of the first ruler bar (102), and the back surface of the spur gear (101) is meshed with the tooth pattern of the front surface of the second ruler bar (103), and the first ruler bar (102) and the second ruler bar (103) are meshed. The outer ends of the ruler strips (103) are fixedly mounted with inner side plates (46), the left end of the inner side plate (46) on the left side is fixedly connected to the right end of the insertion rod (9) on the left side, and the right end of the inner side plate (46) on the right side is fixedly connected to the left end of the insertion rod (9) on the right side. The front side of the first ruler strip (102) and the back side of the second ruler strip (103) are fixedly mounted with sliding rods (45), and the outer wall of the sliding rod (45) is slidably connected to the inner wall of the box body (28).

10. The modular quick-installation seat for sports stadiums according to claim 7, characterized in that: The limiting assembly (12) includes a limiting gear (121) and a limiting block (122), wherein the limiting block (122) is movably engaged between two adjacent teeth on the right side of the limiting gear (121), and the inner wall of the limiting gear (121) is fixedly sleeved with the outer wall of the upper end of the rotating rod (11). The right side of the limiting block (122) is movably connected to a threaded rod (37), and a turntable (38) is fixedly installed on the end of the threaded rod (37) away from the limiting block (122). The outer wall of the threaded rod (37) is threadedly sleeved with a support plate (39) located between the limiting block (122) and the turntable (38), and the left end of the support plate (39) is fixedly connected to the upper end of the right side of the shell (29).

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