Stadium seat structure

Abstract

The utility model discloses a stadium seat structure, including support structure, cushion, backrest and crossbeam, support structure includes support frame, extension arm and armrest, support frame includes first angle part, second angle part and third angle part that connect, first angle part is connected with crossbeam, second angle part is located first angle part, third angle part is located second angle part, third angle part is located third angle part. The third included angle part is positioned above the second included angle part; the cushion is mounted on the second included angle part, the extension arm is connected with the third included angle part, and the backrest is mounted on the extension arm; one end of the handrail is connected with the extension arm, and the other end is connected with the second included angle part; according to the venue seat structure provided by the utility model, the seat cushion, the backrest and the armrests are organically combined together by adopting the inverted triangular support frame, so that a stable support system is formed. By means of the structure, force can be evenly dispersed to all parts, local damage caused by stress concentration is avoided, and the overall stability of the seat is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, and in particular to a venue seating structure. Background Technology

[0002] Existing stadium seating is prone to instability, such as swaying, during frequent entry and exit of spectators and their use. This is mainly due to the unreasonable support structure of the seats, which cannot effectively distribute and bear the weight of the spectators and various external forces generated during use. For example, the seats have too few support points, or the connections between the support structures are not strong enough, causing the seats to easily deform and sway when subjected to force.

[0003] In addition, the connection between the seat cushion and backrest and the support structure is not tight enough, making them prone to loosening. When audience members sit down or stand up, the wobbling of the seat cushion and backrest further affects the overall stability of the seat, reducing the audience's user experience. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a venue seating structure with strong overall stability.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a venue seating structure, including a support structure, a seat cushion, a backrest, and a crossbeam. The support structure includes a support frame, an extension arm, and an armrest. The support frame includes a first included angle portion, a second included angle portion, and a third included angle portion connected together. The first included angle portion is connected to the crossbeam, the second included angle portion is located above the first included angle portion, and the third included angle portion is located above the second included angle portion. The seat cushion is installed on the second included angle portion, the extension arm is connected to the third included angle portion, and the backrest is installed on the extension arm. One end of the armrest is connected to the extension arm, and the other end is connected to the second included angle portion.

[0006] Furthermore, the support structure is a one-piece molded structure.

[0007] Furthermore, the seat cushion is hinged to the second included angle portion.

[0008] Furthermore, the backrest is detachably mounted to the extension arm.

[0009] Furthermore, it also includes a fastener, wherein the first angled portion is provided with a first fixing portion and a first abutting portion, the fastener is provided with a second fixing portion and a second abutting portion, the first fixing portion and the second fixing portion are detachably connected, the first abutting portion is used to abut against one side of the crossbeam, and the second abutting portion is used to abut against the other side of the crossbeam; the first abutting portion and / or the second abutting portion are provided with a snap-fit ​​protrusion, and the side wall of the crossbeam is provided with a snap-fit ​​groove in the same direction as its extension, and the snap-fit ​​protrusion snaps into the snap-fit ​​groove.

[0010] Furthermore, the number of snap-fit ​​grooves on the side wall of the crossbeam is multiple.

[0011] Furthermore, the number of the snap-fit ​​protrusions on the first contact portion and / or the second contact portion is multiple, and the number of the snap-fit ​​protrusions is less than or equal to the number of the snap-fit ​​grooves.

[0012] Furthermore, the first fixing part is provided with a fastening nut, and the second fixing part is provided with a fastening bolt, the fastening bolt being threadedly connected to the fastening nut.

[0013] Furthermore, the second fixing part is provided with a clearance hole, and the fastening bolt is installed in the clearance hole.

[0014] Furthermore, the first fixing part is provided with a positioning protrusion, and the second fixing part is provided with a positioning groove, wherein the positioning protrusion is used to cooperate with the positioning groove.

[0015] The beneficial effects of this utility model are as follows: The venue seating structure provided by this utility model organically combines the seat cushion, backrest, and armrests into a stable support system by adopting an inverted triangular support frame. This structure allows the seat to evenly distribute the force to various components when subjected to external forces, avoiding localized damage caused by concentrated force, greatly enhancing the overall stability of the seat, and effectively solving the problem of existing venue seats being prone to swaying and instability, providing a safer and more reliable user experience for spectators. One end of the armrest is connected to the extension arm, and the other end is connected to the second angle portion. This connection method provides two stable support points for the armrest, forming a stable triangular structure. Compared with traditional armrest connection methods, this design can significantly improve the bending and torsional resistance of the armrest, making it less prone to deformation or damage when frequently used and leaned upon by spectators, extending the service life of the armrest, and also ensuring the safety of spectators during use. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the venue seating structure according to Embodiment 1 of this utility model;

[0017] Figure 2This is an exploded view of the venue seating structure according to Embodiment 1 of this utility model.

[0018] Label Explanation:

[0019] 1. Support frame; 11. First angle portion; 111. First fixing portion; 112. First abutting portion; 113. Snap-fit ​​protrusion; 12. Second angle portion; 13. Third angle portion; 14. Extension arm; 15. Armrest; 2. Crossbeam; 21. Snap-fit ​​groove; 3. Seat cushion; 4. Backrest; 5. Fastener; 51. Second fixing portion; 52. Second abutting portion; 53. Alternating hole; 54. Fastening bolt. Detailed Implementation

[0020] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0021] Please refer to Figure 1 as well as Figure 2 A venue seating structure includes a support structure, a seat cushion 3, a backrest 4, and a crossbeam 2. The support structure includes a support frame 1, an extension arm 14, and an armrest 15. The support frame 1 includes a first included angle portion 11, a second included angle portion 12, and a third included angle portion 13 connected together. The first included angle portion 11 is connected to the crossbeam 2. The second included angle portion 12 is located above the first included angle portion 11, and the third included angle portion 13 is located above the second included angle portion 12. The seat cushion 3 is installed on the second included angle portion 12. The extension arm 14 is connected to the third included angle portion 13, and the backrest 4 is installed on the extension arm 14. One end of the armrest 15 is connected to the extension arm 14, and the other end is connected to the second included angle portion 12.

[0022] As described above, the beneficial effects of this utility model are as follows: By using an inverted triangular support frame 1, the seat cushion 3, backrest 4, and armrest 15 are organically combined to form a stable support system. This structure allows the seat to distribute the force evenly to each component when subjected to external force, avoiding localized damage caused by concentrated force, greatly enhancing the overall stability of the seat, and effectively solving the problem of existing venue seats being prone to swaying and instability, providing a safer and more reliable user experience for the audience; one end of the armrest 15 is connected to the extension arm 14, and the other end is connected to the second angle portion 12. This connection method provides the armrest 15 with two stable support points, forming a stable triangular structure. Compared with the traditional armrest 15 connection method, this design can significantly improve the bending and torsional resistance of the armrest 15, making it less prone to deformation or damage when the audience uses and leans on it frequently, extending the service life of the armrest 15, and also ensuring the safety of the audience during use.

[0023] Furthermore, the support structure is a one-piece molded structure.

[0024] As described above, the support structure is a one-piece molded structure. This design eliminates potential defects such as welded or bolted connections between the various parts of the support frame 1, thus ensuring the overall strength and structural precision of the support structure. The one-piece molding process allows for precise control of the dimensions and shapes of each component, avoiding structural instability or reduced strength caused by connection errors. This further enhances the stability and reliability of the seat, ensuring it maintains good performance over long-term use. Furthermore, the one-piece molding production process typically boasts high production efficiency, enabling large-scale mass production. Simultaneously, the reduced complexity of assembly processes lowers the difficulty of quality control during production, resulting in more stable and consistent product quality. This helps reduce production costs, improves the product's market competitiveness, and facilitates large-scale seat procurement and installation by venue operators.

[0025] Furthermore, the seat cushion 3 is hinged to the second angle portion 12.

[0026] As described above, the seat cushion 3 is hinged to the second angle portion 12. This design allows the seat cushion 3 to be flexibly flipped or its angle adjusted. For example, when different activities or events are held in the venue, the angle of the seat cushion 3 can be adjusted according to the needs of the audience and the usage scenario to provide a more comfortable sitting posture. In addition, when the seat is not in use or needs cleaning or maintenance, the seat cushion 3 can be flipped up for easy operation by staff, improving the flexibility of use and convenience of maintenance of the seat; and the hinged seat cushion 3 design can also improve the space utilization efficiency of the venue to a certain extent. When the seat is not in use, flipping up the seat cushion 3 can reduce the space occupied by the seat, providing more space for the arrangement of other activities or temporary facilities in the venue. For example, when holding exhibitions or performances that require a large activity space, the seat cushion 3 can be flipped up to facilitate the free movement of the audience in the venue, while also facilitating the arrangement of the venue and the installation of equipment by staff.

[0027] Furthermore, the backrest 4 is detachably mounted to the extension arm 14.

[0028] As described above, the backrest 4 is detachably installed on the extension arm 14, making its installation and removal extremely convenient. When the backrest 4 is damaged, worn, or requires cleaning or replacement, staff can easily remove it for maintenance or replacement. This significantly improves seat maintenance efficiency, reduces maintenance costs, and ensures the seat's appearance and performance remain in good condition, extending its overall lifespan. Furthermore, the detachable backrest 4 design facilitates personalized customization and upgrades of venue seating. Depending on the event theme or audience needs, backrests 4 can be easily replaced with different colors, materials, or those with special functions, such as massage, heating, or advertising features, enhancing the functionality and added value of the venue seating and meeting the diverse needs of the venue.

[0029] Furthermore, it also includes a fastener 5. The first angled portion 11 is provided with a first fixing portion 111 and a first abutting portion 112. The fastener 5 is provided with a second fixing portion 51 and a second abutting portion 52. The first fixing portion 111 and the second fixing portion 51 are detachably connected. The first abutting portion 112 is used to abut against one side of the crossbeam 2, and the second abutting portion 52 is used to abut against the other side of the crossbeam 2. The first abutting portion 112 and / or the second abutting portion 52 are provided with a snap-fit ​​protrusion 113. The side wall of the crossbeam 2 is provided with a snap-fit ​​groove 21 in the same direction as its extension. The snap-fit ​​protrusion 113 snaps into the snap-fit ​​groove 21.

[0030] As described above, by setting fastener 5 and the first fixing part 111, the first abutting part 112, the second fixing part 51, and the second abutting part 52, a tight connection between the seat and the crossbeam 2 is achieved. The first abutting part 112 abuts against one side of the crossbeam 2, and the second abutting part 52 abuts against the other side of the crossbeam 2. This double-sided abutting design can effectively prevent the seat from swaying back and forth or left and right on the crossbeam 2, ensuring the stability of the seat during use. At the same time, the detachable connection of fastener 5 also facilitates the installation and removal of the seat, improving the efficiency of installation and maintenance; and the snap-fit ​​design of the snap-fit ​​protrusion 113 and the snap-fit ​​groove 21 further enhances the reliability of the connection between the seat and the crossbeam 2. The snap-fit ​​structure can prevent the fastener 5 from loosening due to vibration or other reasons during use, ensuring that the seat and the crossbeam 2 always maintain a tight connection. This design is particularly important in venues with high population density and high usage frequency, effectively avoiding safety accidents caused by loose seats and protecting the personal safety of the audience.

[0031] Furthermore, the number of the snap-fit ​​grooves 21 on the side wall of the crossbeam 2 is multiple.

[0032] As described above, the crossbeam 2 has multiple snap-fit ​​grooves 21 on its side wall, which can cooperate with multiple snap-fit ​​protrusions 113, thereby increasing the number of connection points between the seat and the crossbeam 2. This multi-point connection method can further disperse the external forces on the seat, improving the strength and stability of the connection. For example, the impact force generated when the audience stands up or sits down can be evenly distributed to the crossbeam 2 through multiple snap-fit ​​points, avoiding connection failure caused by excessive force at a single point, and ensuring that the seat maintains a stable and reliable connection under various operating conditions. The design of multiple snap-fit ​​grooves 21 can also meet different installation requirements. Depending on the specific layout of the venue and the installation position of the seat, a suitable snap-fit ​​groove 21 can be selected for connection, improving the flexibility and adaptability of seat installation. At the same time, it also facilitates the quick disassembly and reinstallation of the seat when adjustments or rearrangements are needed, reducing the workload of installation and adjustment.

[0033] Furthermore, the number of the snap-fit ​​protrusions 113 on the first contact portion 112 and / or the second contact portion 52 is multiple, and the number of the snap-fit ​​protrusions 113 is less than or equal to the number of the snap-fit ​​grooves 21.

[0034] As described above, the first contact portion 112 and / or the second contact portion 52 have multiple locking protrusions 113, and the number of locking protrusions 113 is less than or equal to the number of locking slots 21. This design ensures both the reliability and flexibility of the connection. Multiple locking protrusions 113 can tightly engage with the locking slots 21 on the crossbeam 2, ensuring a firm and reliable connection between the seat and the crossbeam 2. Furthermore, the design that the number of locking protrusions 113 is less than or equal to the number of locking slots 21 allows for the selection of appropriate locking protrusions 113 to engage with locking slots 21 during installation, facilitating adjustments to the seat's installation position and angle, and improving the flexibility and adaptability of seat installation. This design also reduces the difficulty of installation and maintenance. When installing the seat, workers can quickly locate the appropriate locking protrusions 113 for connection based on the position and number of locking slots 21, eliminating the need for complex alignment and adjustment operations. During maintenance, if it is necessary to disassemble the seat for repair or replacement of parts, the snap-fit ​​protrusion 113 can be easily removed from the snap-fit ​​groove 21, making the disassembly work convenient and quick and improving maintenance efficiency.

[0035] Furthermore, the first fixing part 111 is provided with a fastening nut, and the second fixing part 51 is provided with a fastening bolt 54, wherein the fastening bolt 54 is threadedly connected to the fastening nut.

[0036] As described above, the threaded connection between the fastening bolt 54 and the fastening nut offers advantages such as high connection strength and reliability. This connection method can withstand significant tensile and compressive forces, ensuring a tight and secure connection between the seat and the crossbeam 2, effectively preventing loosening or failure due to external forces. Furthermore, the threaded connection is simple and convenient to operate; workers can easily tighten or loosen it using only ordinary wrenches and other tools, eliminating the need for complex installation equipment and skills, thus improving installation and maintenance efficiency. The threaded connection also offers strong adaptability, allowing for the selection of appropriate bolt and nut specifications based on different installation environments and requirements. For example, in venues requiring high connection strength, larger bolts and nuts can be selected; in spaces with limited space or high installation precision requirements, smaller bolts and nuts can be chosen, along with appropriate installation tools for precise installation, meeting the installation needs of venue seating in various environments.

[0037] Furthermore, the second fixing part 51 is provided with a clearance hole 53, and the fastening bolt 54 is installed in the clearance hole 53.

[0038] As described above, the second fixing part 51 is provided with a clearance hole 53, and the fastening bolt 54 is installed in the clearance hole 53. This design makes the structure of the fastener 5 more compact, reduces the protruding part of the fastener 5 on the outside of the seat, and makes the overall appearance of the seat more concise and beautiful. In venues such as stadiums where aesthetics are important, the compact design of the fastener 5 can avoid the overall visual effect of the seat being affected by protruding bolts and other components, thus enhancing the overall image of the venue. In addition, the design of the clearance hole 53 can also improve the installation accuracy and reliability of the fastener 5. During installation, the clearance hole 53 can position and guide the fastening bolt 54, ensuring that the fastening bolt 54 can be accurately installed in the predetermined position, avoiding loosening or failure of the connection due to installation position deviation. At the same time, the clearance hole 53 can also prevent the fastening bolt 54 from shifting or falling off due to vibration or other reasons during use, further enhancing the connection reliability of the fastener 5 and ensuring the safe use of the seat.

[0039] Furthermore, the first fixing part 111 is provided with a positioning protrusion, and the second fixing part 51 is provided with a positioning groove, wherein the positioning protrusion is used to cooperate with the positioning groove.

[0040] As described above, the first fixing part 111 has a positioning protrusion, and the second fixing part 51 has a positioning groove. The design of the positioning protrusion and the positioning groove allows for quick and accurate installation and positioning between the seat and the crossbeam 2. During installation, workers only need to align the positioning protrusion with the positioning groove and insert it to ensure that the connection position between the seat and the crossbeam 2 is accurate, eliminating the need for repeated adjustments and alignment operations, thus greatly improving installation efficiency. Simultaneously, this positioning design also prevents the seat from shifting due to external forces during use, ensuring that the seat always remains in the correct position, improving the seat's stability and reliability. Furthermore, the cooperation between the positioning protrusion and the positioning groove enhances the stability of the connection between the seat and the crossbeam 2. The tight fit between the positioning protrusion and the positioning groove forms a stable connection structure, effectively preventing the seat from shaking or loosening under external forces. For example, the impact force generated when a spectator stands up or sits down can be buffered and dispersed through the cooperation structure of the positioning protrusion and the positioning groove, avoiding seat damage or safety accidents caused by loose connections, and ensuring the personal safety of the spectators.

[0041] Please refer to Figure 1 and Figure 2 One embodiment of this utility model is as follows: a venue seating structure, including a support structure, a seat cushion 3, a backrest 4, and a crossbeam 2. The support structure includes a support frame 1, an extension arm 14, and an armrest 15. The support frame 1 includes a first included angle portion 11, a second included angle portion 12, and a third included angle portion 13 connected together. The first included angle portion 11 is connected to the crossbeam 2, the second included angle portion 12 is located above the first included angle portion 11, and the third included angle portion 13 is located above the second included angle portion 12. The seat cushion 3 is installed on the second included angle portion 12, the extension arm 14 is connected to the third included angle portion 13, and the backrest 4 is installed on the extension arm 14. One end of the armrest 15 is connected to the extension arm 14, and the other end is connected to the second included angle portion 12. It can be understood that by using an inverted triangular support frame 1, the seat cushion 3, the backrest 4, and the armrest 15 are organically combined to form a stable support system. This structure allows the seat to distribute force evenly across all components when subjected to external forces, preventing localized damage caused by concentrated force and greatly enhancing the overall stability of the seat. It effectively solves the problem of existing stadium seats being prone to swaying and instability, providing a safer and more reliable user experience for spectators. One end of the armrest 15 is connected to the extension arm 14, and the other end is connected to the second angle portion 12. This connection method provides the armrest 15 with two stable support points, forming a stable triangular structure. Compared to traditional armrest 15 connection methods, this design significantly improves the bending and torsional resistance of the armrest 15, making it less prone to deformation or damage during frequent use and leaning, extending the service life of the armrest 15, and ensuring the safety of spectators during use.

[0042] Preferably, the support structure is a one-piece molded structure. This design eliminates connection points between the various parts of the support frame 1 that may cause defects, such as welding or bolt connections, thus ensuring the overall strength and structural precision of the support structure. The one-piece molding process allows for precise control of the size and shape of each component, avoiding structural instability or reduced strength caused by connection errors, further enhancing the stability and reliability of the seat and ensuring that the seat maintains good performance during long-term use. Furthermore, the one-piece molding production process typically has high production efficiency, enabling large-scale mass production. Simultaneously, by reducing complex assembly processes, the difficulty of quality control during production is lowered, resulting in more stable and consistent product quality. This helps reduce production costs, improves the product's market competitiveness, and facilitates large-scale seat procurement and installation by venue operators. Specifically, the seat cushion 3 is hinged to the second angle portion 12. This design allows the seat cushion 3 to be flexibly flipped or its angle adjusted. For example, during different activities or events in the venue, the angle of the seat cushion 3 can be adjusted according to the needs and usage scenarios of the audience, providing a more comfortable seating posture. Furthermore, when the seats are not in use or require cleaning or maintenance, the seat cushion 3 can be flipped up for easy operation by staff, improving the flexibility and ease of maintenance of the seats. The hinged seat cushion 3 design also improves the space utilization efficiency of the venue to some extent. When the seats are not in use, flipping up the seat cushion 3 reduces the space occupied by the seats, providing more space for other activities or temporary facilities in the venue. For example, when holding exhibitions or performances requiring large activity spaces, the seat cushion 3 can be flipped up, allowing audiences to move freely within the venue, while also facilitating venue setup and equipment installation by staff. More specifically, the backrest 4 is detachably installed on the extension arm 14, making the installation and removal of the backrest 4 very convenient. When the backrest 4 is damaged, worn, or needs cleaning or replacement, staff can easily remove it for maintenance or replacement. This significantly improves seat maintenance efficiency, reduces maintenance costs, and ensures that the seats maintain their appearance and performance in good condition, extending their overall lifespan. Furthermore, the detachable backrest design facilitates personalized customization and upgrades of the venue seats. Depending on the event theme or audience needs, backrests of different colors, materials, or with special functions, such as massage, heating, or advertising features, can be easily replaced, enhancing the functionality and added value of the venue seats and meeting the diverse needs of the venue.

[0043] In this embodiment, the venue seat structure further includes a fastener 5. The first angle portion 11 is provided with a first fixing portion 111 and a first abutting portion 112. The fastener 5 is provided with a second fixing portion 51 and a second abutting portion 52. The first fixing portion 111 and the second fixing portion 51 are detachably connected. The first abutting portion 112 is used to abut against one side of the crossbeam 2, and the second abutting portion 52 is used to abut against the other side of the crossbeam 2. The first abutting portion 112 and / or the second abutting portion 52 are provided with a snap-fit ​​protrusion 113. The side wall of the crossbeam 2 is provided with a snap-fit ​​groove 21 in the same direction as its extension. The snap-fit ​​protrusion 113 snaps into the snap-fit ​​groove 21. By setting the fastener 5 and the first fixing portion 111, the first abutting portion 112, the second fixing portion 51 and the second abutting portion 52, a tight connection between the seat and the crossbeam 2 is achieved. The first contact part 112 abuts against one side of the crossbeam 2, and the second contact part 52 abuts against the other side of the crossbeam 2. This double-sided contact design effectively prevents the seat from swaying back and forth or left and right on the crossbeam 2, ensuring the stability of the seat during use. Meanwhile, the detachable connection of the fastener 5 facilitates the installation and removal of the seat, improving installation and maintenance efficiency. Furthermore, the snap-fit ​​design of the snap-fit ​​protrusion 113 and the snap-fit ​​groove 21 further enhances the reliability of the connection between the seat and the crossbeam 2. The snap-fit ​​structure prevents the fastener 5 from loosening due to vibration or other reasons during use, ensuring that the seat and the crossbeam 2 always maintain a tight connection. This design is particularly important in environments like stadiums with high population density and frequent use, effectively preventing safety accidents caused by seat loosening and protecting the personal safety of spectators. Specifically, the crossbeam 2 has multiple snap-fit ​​grooves 21 on its side wall. These grooves can cooperate with multiple snap-fit ​​protrusions 113, thereby increasing the number of connection points between the seat and the crossbeam 2. This multi-point connection method further disperses the external forces acting on the seats, improving the strength and stability of the connection. For example, the impact force generated when spectators stand up or sit down can be evenly distributed to the crossbeam 2 through multiple snap-fit ​​points, avoiding connection failure due to excessive force at a single point and ensuring that the seats maintain a stable and reliable connection under various operating conditions. The design of multiple snap-fit ​​slots 21 can also meet different installation requirements. Depending on the specific layout of the venue and the installation location of the seats, appropriate snap-fit ​​slots 21 can be selected for connection, improving the flexibility and adaptability of seat installation. At the same time, it also facilitates the quick disassembly and reinstallation of seats when adjustments or rearrangements are needed, reducing the workload of installation and adjustment.

[0044] Optionally, the number of engaging protrusions 113 on the first contact portion 112 and / or the second contact portion 52 may be multiple, with the number of engaging protrusions 113 being less than or equal to the number of engaging slots 21. This design ensures both reliable and flexible connection. Multiple engaging protrusions 113 can tightly engage with the engaging slots 21 on the crossbeam 2, ensuring a secure and reliable connection between the seat and the crossbeam 2. Furthermore, the design that the number of engaging protrusions 113 is less than or equal to the number of engaging slots 21 allows for selection of appropriate engaging protrusions 113 to engage with the engaging slots 21 during installation, facilitating adjustments to the seat's installation position and angle, and improving the flexibility and adaptability of seat installation. This design also reduces the difficulty of installation and maintenance. When installing the seat, workers can quickly locate the appropriate snap-fit ​​protrusions 113 for connection based on the position and number of snap-fit ​​slots 21, eliminating the need for complex alignment and adjustment operations. During maintenance, if the seat needs to be disassembled for repair or component replacement, the snap-fit ​​protrusions 113 can be easily removed from the snap-fit ​​slots 21, facilitating quick and easy disassembly and improving maintenance efficiency. Furthermore, the first fixing part 111 is equipped with a fastening nut, and the second fixing part 51 is equipped with a fastening bolt 54. The fastening bolt 54 is threadedly connected to the fastening nut, and this threaded connection method offers advantages such as high connection strength and good reliability. This connection method can withstand significant tensile and compressive forces, ensuring a tight and secure connection between the seat and the crossbeam 2, effectively preventing loosening or failure due to external forces. Simultaneously, the threaded connection is simple and convenient to operate; workers can easily tighten or loosen it using ordinary wrenches or similar tools, eliminating the need for complex installation equipment and skills, thus improving installation and maintenance efficiency. The threaded connection allows for the selection of appropriate bolt and nut specifications according to different installation environments and requirements, demonstrating strong adaptability. For example, in venue environments where high connection strength is required, larger bolts and nuts can be selected for connection; in situations where space is limited or installation accuracy is required, smaller bolts and nuts can be selected and used with appropriate installation tools for precise installation, meeting the installation needs of venue seats in various environments; furthermore, the second fixing part 51 is provided with a clearance hole 53, and the fastening bolt 54 is installed in the clearance hole 53. This design makes the structure of the fastener 5 more compact, reduces the protruding part of the fastener 5 on the outside of the seat, and makes the overall appearance of the seat simpler and more beautiful.In venues like stadiums where aesthetics are important, the compact design of the fastener 5 prevents protruding bolts and other components from affecting the overall visual appeal of the seating, thus enhancing the overall image of the venue. Furthermore, the design of the recessed holes 53 improves the installation accuracy and reliability of the fastener 5. During installation, the recessed holes 53 position and guide the fastening bolts 54, ensuring they are accurately installed in their designated positions and preventing loosening or failure due to installation misalignment. Simultaneously, the recessed holes 53 prevent the fastening bolts 54 from shifting or falling off during use due to vibration or other factors, further enhancing the connection reliability of the fastener 5 and ensuring the safe use of the seating.

[0045] Optionally, the first fixing part 111 is provided with a positioning protrusion, and the second fixing part 51 is provided with a positioning groove. The positioning protrusion is used to cooperate with the positioning groove. The design of the positioning protrusion and positioning groove cooperating allows for quick and accurate installation and positioning between the seat and the crossbeam 2. During installation, the operator only needs to align the positioning protrusion with the positioning groove and insert it to ensure that the connection position between the seat and the crossbeam 2 is accurate, without the need for repeated adjustments and alignment operations, greatly improving installation efficiency. At the same time, this positioning design can also prevent the seat from shifting due to external forces during use, ensuring that the seat always remains in the correct position, improving the stability and reliability of the seat. Furthermore, the cooperation between the positioning protrusion and the positioning groove can also enhance the stability of the connection between the seat and the crossbeam 2. The tight cooperation between the positioning protrusion and the positioning groove can form a stable connection structure, effectively preventing the seat from shaking or loosening when subjected to external forces. For example, the impact force generated when the audience stands up or sits down can be buffered and dispersed through the matching structure of positioning protrusions and positioning grooves, avoiding seat damage or safety accidents caused by loose connections and ensuring the personal safety of the audience.

[0046] In summary, the venue seating structure provided by this utility model organically combines the seat cushion, backrest, and armrests into a stable support system using an inverted triangular support frame. This structure allows the seat to distribute force evenly to various components when subjected to external forces, avoiding localized damage caused by concentrated force, greatly enhancing the overall stability of the seat, and effectively solving the problem of existing venue seats being prone to swaying and instability, providing a safer and more reliable user experience for spectators. One end of the armrest is connected to the extension arm, and the other end is connected to the second angle portion. This connection method provides two stable support points for the armrest, forming a stable triangular structure. Compared with traditional armrest connection methods, this design can significantly improve the bending and torsional resistance of the armrest, making it less prone to deformation or damage when frequently used and leaned upon by spectators, extending the service life of the armrest, and also ensuring the safety of spectators during use.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A stadium seating structure, characterized in that, The device includes a support structure, a seat cushion, a backrest, and a crossbeam. The support structure includes a support frame, an extension arm, and armrests. The support frame includes a first included angle portion, a second included angle portion, and a third included angle portion connected together. The first included angle portion is connected to the crossbeam, the second included angle portion is located above the first included angle portion, and the third included angle portion is located above the second included angle portion. The seat cushion is installed on the second included angle portion, the extension arm is connected to the third included angle portion, and the backrest is installed on the extension arm. One end of the armrest is connected to the extension arm, and the other end is connected to the second included angle portion.

2. The venue seating structure according to claim 1, characterized in that, The supporting structure is a one-piece molded structure.

3. The venue seating structure according to claim 1, characterized in that, The seat cushion is hinged to the second angle portion.

4. The venue seating structure according to claim 1, characterized in that, The backrest is detachably mounted to the extension arm.

5. The venue seating structure according to claim 1, characterized in that, It also includes fasteners, the first included angle portion is provided with a first fixing portion and a first abutting portion, the fastener is provided with a second fixing portion and a second abutting portion, the first fixing portion and the second fixing portion are detachably connected, the first abutting portion is used to abut against one side of the crossbeam, and the second abutting portion is used to abut against the other side of the crossbeam; the first abutting portion and / or the second abutting portion are provided with snap-fit ​​protrusions, the side wall of the crossbeam is provided with snap-fit ​​grooves in the same direction of extension, and the snap-fit ​​protrusions snap into the snap-fit ​​grooves.

6. The venue seating structure according to claim 5, characterized in that, The number of snap-fit ​​grooves on the side wall of the crossbeam is multiple.

7. The venue seating structure according to claim 6, characterized in that, The number of the snap-fit ​​protrusions on the first contact portion and / or the second contact portion is multiple, and the number of the snap-fit ​​protrusions is less than or equal to the number of the snap-fit ​​grooves.

8. The venue seating structure according to claim 5, characterized in that, The first fixing part is provided with a fastening nut, and the second fixing part is provided with a fastening bolt, the fastening bolt being threadedly connected to the fastening nut.

9. The venue seating structure according to claim 8, characterized in that, The second fixing part is provided with a clearance hole, and the fastening nut is installed in the clearance hole.

10. The venue seating structure according to claim 5, characterized in that, The first fixing part is provided with a positioning protrusion, and the second fixing part is provided with a positioning groove. The positioning protrusion is used to cooperate with the positioning groove.

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