Subway seat mounting structure

Abstract

The utility model relates to seat installation technical field discloses a subway seat installation structure, including subway side wall, the front side left and right ends of subway side wall all are provided with seat side baffle, the adjacent between two seat side baffles is provided with folding installation mechanism, the folding installation mechanism is used for installing and accomodating seat, the front side of subway side wall is provided with fixed mechanism, the fixed mechanism is used for fixing the seat after accomodating, the folding installation mechanism includes two swing rods, the far side of two swing rods all rotatoryly connected in the adjacent side of two seat side baffles. In the utility model, through seat side baffle support swing rod and fixed side plate, drive accomodating chair assembly to unfold or to be put away, when unfolding, the cylinder assembly provides the support force and keeps the seat stable, after accomodating, the fixed mechanism locks the seat, and the cross support rod and handrail assembly can be supported, unfolding satisfies the demand of passenger sitting, and when accomodating, the space occupation is reduced.

Description

Technical Field

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

[0002] The subway seat installation structure consists of three parts: a support frame, seat body connection, and auxiliary fixing. The support frame is mostly made of stainless steel or high-strength aluminum alloy and is tightly fixed to the steel structure embedded in the car floor by expansion bolts. The seat panel is bolted to the frame, and some are equipped with buffer pads to reduce vibration and noise. At the same time, anti-slip buckles or positioning pins are set on the edges to prevent displacement. The whole structure must meet the standards of rail transit for impact resistance, fire resistance and flame retardancy, taking into account both practicality and passenger safety.

[0003] The subway seat installation structure boasts exceptional stability, with a support frame made of stainless steel or high-strength aluminum alloy, rigidly connected to the pre-embedded steel structure in the carriage floor. This design withstands the impact of train bumps and passenger crowding, effectively preventing displacement. Simultaneously, it strictly complies with fire-retardant and impact-resistant rail transit safety standards. Some designs incorporate buffer pads to reduce vibration and noise, balancing safety and passenger comfort. Furthermore, it adapts to the carriage spaces of different train models, maximizing practicality and space utilization.

[0004] Seats significantly reduce standing space, especially long seats arranged laterally, which divide the effective passage space in the carriage into small sections, making it difficult for passengers to evacuate quickly or find empty seats. Some models do not have narrowed seat edges, further encroaching on the already limited standing space, causing congestion in the carriage, increasing the probability of passenger collisions and crowding, and also reducing passenger carrying efficiency per unit time, making it difficult to meet the transportation needs of large passenger flows during peak periods, thus affecting the overall riding experience. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a subway seat installation structure, which aims to improve the problem that existing seats significantly compress the standing area, especially long seats arranged laterally, which divide the effective passage space in the carriage into small blocks, making it difficult for passengers to evacuate quickly or find empty seats.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a subway seat installation structure, including a subway side wall, wherein seat side panels are provided on both the left and right ends of the front side of the subway side wall, and a retractable installation mechanism is provided between the adjacent two seat side panels, the retractable installation mechanism being used to install and store the seat, and a fixing mechanism is provided on the front side of the subway side wall, the fixing mechanism being used to fix the stored seat. The retractable installation mechanism includes two swing arms. The opposite sides of the two swing arms are rotatably connected to adjacent sides of the two seat side panels. The top of each swing arm is rotatably connected to a fixed side plate. The front ends of the opposite sides of the two fixed side plates are rotatably connected to connecting rods. The bottom opposite sides of the two fixed side plates are rotatably connected to adjacent sides of the two seat side panels. The top of each connecting rod is fixedly connected to a rocker arm. The two adjacent sides are fixedly connected to the same crossbar. The two fixed side plates are provided with the same folding chair assembly. The rear bottom of each swing arm is provided with a cylinder assembly. The front bottom of the subway side wall is provided with a handrail assembly.

[0007] As a further description of the above technical solution: The fixing mechanism includes two main rods, the rear sides of which are fixedly connected to the left and right ends of the front side of the subway side wall. A spring-loaded inner core is fixedly connected inside each of the two main rods. Multiple locking beads are slidably connected to the top of the outer walls of each of the two main rods. Sliding blocks are slidably connected to the outer walls of each of the two main rods. Springs are fixedly connected to the top inner sides of each of the two sliding blocks. Locking blocks are fixedly connected to the bottom of each of the two springs. Locking components are provided inside each of the two main rods.

[0008] As a further description of the above technical solution: The storage chair assembly includes two pivot plates. The opposite sides of the two pivot plates are fixedly connected to the adjacent sides of two fixed side plates. The rear ends of the adjacent sides of the two pivot plates are fixedly connected to a backrest, and the front ends of the adjacent sides of the two pivot plates are rotatably connected to a seat.

[0009] As a further description of the above technical solution: The cylinder assembly includes two cylinders, with the opposite sides of the two cylinders fixedly connected to the rear ends of adjacent sides of the two seat side panels. A piston rod is slidably connected inside each of the two cylinders, and the front ends of the two piston rods are fixedly connected to the rear bottom of the rocker arm.

[0010] As a further description of the above technical solution: The handrail assembly includes a vertical handrail, the rear end of which is fixedly connected to the front side of the subway side wall, and the top of which is fixedly connected to multiple triangular handles.

[0011] As a further description of the above technical solution: The seat surface is made of fiberglass and has an independent arc-shaped structure.

[0012] As a further description of the above technical solution: The vertical handrail is made of aluminum alloy, and multiple rubber rings are fixedly connected to the outer wall of the vertical handrail.

[0013] As a further description of the above technical solution: The locking assembly includes a support rod, the outer wall of which is slidably connected to the inner wall of the main body rod, a second spring-loaded inner core is fixedly connected inside the support rod, and a pressure ring is fixedly connected to the bottom of the outer wall of the support rod.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the side panel of the seat supports the swing rod and the fixed side plate. The swing rod and the fixed side plate rotate to drive the folding chair assembly to unfold or fold up. When unfolded, the cylinder assembly provides support force to keep the seat stable, and the connecting rod and rocker arm assist in adjusting the angle. When folded up, the fixing mechanism locks the seat, and the crossbar and armrest assembly can provide support. When unfolded, it meets the seating needs of passengers. When folded up, it reduces space occupation, increases the passenger capacity of the carriage during peak hours, takes into account both ease of use and space utilization, and optimizes the riding experience.

[0015] 2. In this utility model, the main rod is fixed to the subway side wall, providing stable support for the overall structure; the rebound inner core gives the main rod elastic reset capability, and the locking ball can assist in positioning when adjusting the position; the rebound spring on the inner side of the sliding block drives the locking block to move up and down, realizing flexible adjustment and reliable fixation of related components, ensuring the stability of related equipment during installation or use in the subway, and at the same time, the rebound structure facilitates subsequent position adjustment, improving the practicality and ease of operation of the overall mechanism. Attached Figure Description

[0016] Figure 1 This is a perspective view of a subway seat installation structure proposed in this utility model; Figure 2 This is a front view of a subway seat installation structure proposed in this utility model; Figure 3 This is a split view of the retractable installation mechanism in a subway seat installation structure proposed in this utility model; Figure 4 This is a side view of a subway seat installation structure proposed in this utility model; Figure 5 This is a split view of the fixing mechanism in a subway seat installation structure proposed in this utility model.

[0017] Legend: 1. Subway side wall; 2. Seat side panel; 3. Retraction and installation mechanism; 31. Swing rod; 32. Connecting rod; 33. Rocker arm; 34. Horizontal handrail; 35. Fixed side panel; 36. Retractable chair assembly; 361. Swivel plate; 362. Backrest; 363. Seat surface; 37. Cylinder assembly; 371. Cylinder barrel; 372. Piston rod; 38. Armrest assembly; 381. Vertical handrail; 382. Triangular handle; 383. Rubber ring; 4. Fixing mechanism; 41. Main rod; 42. Rebound inner core one; 43. Clamping ball; 44. Sliding block; 45. Rebound spring; 46. Locking block; 47. Locking assembly; 471. Support rod; 472. Rebound inner core two; 473. Pressure ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0019] Reference Figures 1-3 An embodiment of this utility model is provided: a subway seat installation structure, including a subway side wall 1, with seat side panels 2 provided on the left and right ends of the front side of the subway side wall 1, and a retractable installation mechanism 3 provided between the adjacent two seat side panels 2. The retractable installation mechanism 3 is used to install and store the seat, and a fixing mechanism 4 is provided on the front side of the subway side wall 1. The fixing mechanism 4 is used to fix the seat after it is stored. The retraction and installation mechanism 3 includes two swing arms 31. The opposite sides of the two swing arms 31 are rotatably connected to the adjacent sides of the two seat side panels 2. The top of the two swing arms 31 is rotatably connected to a fixed side plate 35. The front end of the opposite sides of the two fixed side plates 35 is rotatably connected to a connecting rod 32. The bottom opposite sides of the two fixed side plates 35 are rotatably connected to the adjacent sides of the two seat side panels 2. The top of the two connecting rods 32 is fixedly connected to a rocker arm 33. The adjacent sides of the two connecting rods 32 are fixedly connected to the same horizontal handrail 34. The adjacent sides of the two fixed side plates 35 are provided with the same chair storage assembly 36. The rear bottom of the two swing arms 31 is provided with a cylinder assembly 37. The front bottom of the subway side wall 1 is provided with a handrail assembly 38. Specifically, when the seat is unfolded for use, firstly, the fixing mechanism 4 releases its fixing effect on the folded seat. Then, the cylinder assembly 37 on the rear bottom side of the two swing arms 31 in the unfolding and mounting mechanism 3 is activated. The cylinder assembly 37 generates driving force to push the swing arms 31 to move. Since the opposite sides of the two swing arms 31 are rotatably connected to the adjacent sides of the two seat side panels 2, under the push of the cylinder assembly 37, the swing arms 31 rotate around their rotatable connection point with the seat side panels 2. During the rotation of the swing arms 31, the fixed side plates 35 rotatably connected to their tops are moved. Since the opposite sides of the bottom of the two fixed side plates 35 are rotatably connected to the adjacent sides of the two seat side panels 2, the fixed side plates 35 are moved under the action of the swing arms 31. The fixed side plate 35 rotates synchronously around the rotation connection point with the seat side plate 2. When the fixed side plate 35 moves, the connecting rod 32 connected to the front end moves accordingly, and the rocker arm 33 fixedly connected to the top of the connecting rod 32 also moves synchronously. The horizontal handrail 34 fixedly connected to the adjacent side of the two rocker arms 33 moves together with the rocker arms 33. When the retractable installation mechanism 3 is fully extended, the cylinder assembly 37 stops working, and the horizontal handrail 34 contacts the ground to provide support for passengers to sit. At the same time, the storage chair assembly 36 set on the adjacent side of the two fixed side plates 35 gradually unfolds with the rotation of the fixed side plate 35. When the storage chair assembly 36 unfolds to a horizontal state, it provides a seat for passengers. The handrail assembly 38 set at the bottom front side of the subway side wall 1 can help passengers maintain their body balance. When the seat needs to be folded up, the cylinder assembly 37 is activated again. The cylinder assembly 37 generates a reverse driving force to pull the swing arm 31. The swing arm 31 rotates in the opposite direction around its rotational connection point with the seat side panel 2, which in turn drives the fixed side panel 35 to rotate in the opposite direction. The fixed side panel 35 drives the connecting rod 32, rocker arm 33 and crossbar 34 to move in the opposite direction. At the same time, the folding chair assembly 36 gradually folds up with the reverse rotation of the fixed side panel 35. When the folding chair assembly 36 is completely folded up to a position close to the subway side wall 1, the cylinder assembly 37 stops working. At this time, the fixing mechanism 4 is operated to fix the folded chair assembly 36 to prevent the folding chair assembly 36 from shaking during subway operation. The crossbar 34 provides hand support for standing passengers.

[0020] Reference Figure 5 The fixing mechanism 4 includes two main rods 41. The rear sides of the two main rods 41 are fixedly connected to the left and right ends of the front side of the subway side wall 1. The inner core 42 of each main rod 41 is fixedly connected to the inside of each main rod 41. Multiple locking beads 43 are slidably connected to the top of the outer wall of each main rod 41. Sliding blocks 44 are slidably connected to the outer wall of each main rod 41. Rebound springs 45 are fixedly connected to the top of the inner side of each sliding block 44. Locking blocks 46 are fixedly connected to the bottom of each rebound spring 45. Locking components 47 are provided inside the two main rods 41. Specifically, when the fixing mechanism 4 is required, a backward external force is first applied to the sliding block 44 to drive the two sliding blocks 44 to slide backward along the outer wall of the corresponding main body rod 41. During the backward movement of the sliding block 44, its inner wall separates from the multiple locking beads 43, leaving a sliding space for the multiple locking beads 43 that are slidably connected to the top of the outer wall of the two main body rods 41. The backward sliding action of the sliding block 44 achieves the effect of making room for the locking beads 43 to slide. Then, the locking component 47 is docked with the fixing mechanism 4, so that the locking component 47 enters the preset docking area inside the main body rod 41. After the docking operation of the locking component 47 and the fixing mechanism 4 is completed, the external force applied to the sliding block 44 is released. At this time, the rebound spring 45 fixedly connected to the top of the inner side of the two sliding blocks 44 releases elastic potential energy, pushing the sliding block 44 to slide forward and reset along the outer wall of the main body rod 41. After reset, the inner wall of the sliding block 44 contacts and abuts against multiple locking beads 43, preventing the locking beads 43 from sliding along the outer wall of the main body rod 41. Then, through the limiting effect of the locking component 47 by the locking beads 43, the locking component 47 is stably fixed inside the fixing mechanism 4. Through the effect of the rebound spring 45 driving the sliding block 44 to reset and the locking beads 43 limiting, the locking component 47 is fixed inside the fixing mechanism 4. When it is necessary to open the fixing mechanism 4, an external force is applied backward to the sliding block 44 again, causing the sliding block 44 to slide backward along the outer wall of the main body rod 41. The sliding block 44 separates from the locking bead 43, releasing the restriction on the sliding of the locking bead 43. At this time, the elastic inner core 42, which is fixedly connected inside the two main body rods 41, releases its elastic force, generating an outward pushing force on the locking component 47, pushing the locking component 47 out of the preset docking area inside the main body rod 41. Through the action of the sliding block 44 sliding backward to release the limit and the pushing force applied by the elastic inner core 42, the locking component 47 is ejected from the inside of the fixing mechanism 4, completing the opening operation of the fixing mechanism 4.

[0021] Reference Figures 3-4 The storage chair assembly 36 includes two pivot plates 361. The opposite sides of the two pivot plates 361 are fixedly connected to the adjacent sides of two fixed side plates 35. The backrest 362 is fixedly connected to the rear end of the adjacent side of the two pivot plates 361. The seat surface 363 is rotatably connected to the front end of the adjacent side of the two pivot plates 361. The cylinder assembly 37 includes two cylinders 371. The opposite sides of the two cylinders 371 are fixedly connected to the rear end of the adjacent side of two seat side panels 2. The piston rod 372 is slidably connected inside the two cylinders 371. The front end of the two piston rods 372 is fixedly connected to the rear bottom of the swing arm 31. The armrest assembly 38 includes a vertical armrest 381. The rear end of the vertical armrest 381 is fixedly connected to the front side of the subway side wall 1. Multiple triangular handles 382 are fixedly connected to the top of the vertical armrest 381. Specifically, during the seat unfolding process, after the locking mechanism 4 releases the horizontal armrest 34, the cylinder assembly 37 is activated. Since the two cylinders 371 are respectively fixedly connected to the rear ends of the adjacent sides of the two seat side panels 2, and the piston rod 372, which is slidably connected inside the cylinder 371, is fixedly connected to the bottom rear side of the swing rod 31, the cylinder 371 drives the piston rod 372 to extend, and the piston rod 372 pushes the swing rod 31 to rotate around its rotation connection point with the seat side panel 2. The swing rod 31 drives the fixed side plate 35, which is rotatably connected at the top, to move. The rotating shaft plate 361, which is fixed on the adjacent side of the fixed side plate 35, moves synchronously with the fixed side plate 35. The backrest 362, which is fixed at the rear end of the adjacent side of the rotating shaft plate 361, unfolds with the rotating shaft plate 361. At the same time, the seat surface 363, which is rotatably connected at the front end of the adjacent side of the rotating shaft plate 361, rotates around the rotating shaft plate 361 to a horizontal state under the action of force. During the seat folding process, the cylinder 371 of the cylinder assembly 37 drives the piston rod 372 to retract, the piston rod 372 pulls the swing rod 31 to rotate in the opposite direction, the swing rod 31 drives the fixed side plate 35 and the pivot plate 361 to move in the opposite direction, the pivot plate 361 drives the backrest 362 to fold up towards the subway side wall 1, and at the same time the seat surface 363 rotates in the opposite direction around the pivot plate 361 until it fits against the backrest 362, thus realizing the folding of the seat assembly 36. When the seat assembly 36 is fully folded up, the fixing mechanism 4 locks the backrest 362. During this process, the vertical handrail 381 fixed on the front side of the subway side wall 1 and the triangular handle 382 fixed on its top remain fixed. The vertical handrail 381 and the triangular handle 382 provide stable hand support for standing passengers, ensuring that passengers maintain balance during the seat folding process.

[0022] Reference Figures 3-5 The seat surface 363 is made of fiberglass and has an independent arc structure. The vertical armrest 381 is made of aluminum alloy. Multiple rubber rings 383 are fixedly connected to the outer wall of the vertical armrest 381. The locking component 47 includes a support rod 471. The outer wall of the support rod 471 is slidably connected to the inner wall of the main body rod 41. A second spring-loaded inner core 472 is fixedly connected inside the support rod 471. A pressure ring 473 is fixedly connected to the bottom of the outer wall of the support rod 471. Specifically, the seat 363 is made of fiberglass, with an independent arc-shaped structure at the top. This independent arc-shaped structure can directly contact the user and its shape is closer to the curve of the human buttocks. When sitting for a long time, it can support the muscles on both sides of the buttocks and reduce soreness. The vertical armrest 381 is made of aluminum alloy, and multiple rubber rings 383 are fixedly connected to the outer wall of the vertical armrest 381. When the user's hand touches the vertical armrest 381, the rubber rings 383 can increase the friction between the user's hand and the outer wall of the vertical armrest 381 through the fixed connection between the vertical armrest 381 and the rubber rings 383, thereby improving the stability of the hand grip. When it is necessary to fix the seat 363 or the vertical support bar 381 through the fixing mechanism 4, first apply a backward force to the sliding block 44 so that the sliding block 44 slides backward along the outer wall of the main body rod 41. After the sliding block 44 slides, it leaves sliding space for multiple locking beads 43 at the top of the outer wall of the main body rod 41. At this time, push the support rod 471 of the locking component 47 into the main body rod 41. The outer wall of the support rod 471 slides along the inner wall of the main body rod 41. Through the sliding of the support rod 471 and the main body rod 41, the initial docking of the locking component 47 and the fixing mechanism 4 is achieved. After the locking component 47 is connected to the fixing mechanism 4, the force applied to the sliding block 44 is released. The spring 45 at the top of the inner side of the sliding block 44 releases its elastic potential energy, pushing the locking block 46 at the bottom of the spring 45 to move. The locking block 46 acts on the sliding block 44 to reset the sliding block 44. After the sliding block 44 is reset, it limits the locking ball 43, preventing the locking ball 43 from sliding along the outer wall of the main body rod 41. After the locking ball 43 is restricted, it further clamps the support rod 471. By driving the sliding block 44 to reset through the spring 45, the sliding block 44 restricts the movement of the locking ball 43, and the locking ball 43 clamps the support rod 471, the locking component 47 is fixed inside the fixing mechanism 4. When it is necessary to open the fixing mechanism 4 to unlock, a backward force is applied to the sliding block 44, causing the sliding block 44 to slide backward along the outer wall of the main body rod 41 again. The sliding block 44 releases the limit on the locking bead 43. At this time, the second spring-loaded inner core 472 inside the support rod 471 releases elastic potential energy, pushing the support rod 471 to move outward along the inner wall of the main body rod 41. The pressure ring 473 at the bottom of the outer wall of the support rod 471 moves synchronously with the support rod 471. By sliding the sliding block 44 backward to release the limit and the second spring-loaded inner core 472 driving the support rod 471 to move, the first spring-loaded inner core 42 assists in popping the locking component 47 out of the fixing mechanism 4.

[0023] Working principle: When the seat is in the folded state and needs to be unfolded for passengers to sit on, the first step is to unlock the fixing mechanism 4 to release its fixing effect on the folded seat. During the operation, a backward external force is applied to the sliding blocks 44 that are slidably connected to the outer walls of the two main rods 41 in the fixing mechanism 4, driving the two sliding blocks 44 to slide backward along the outer walls of the corresponding main rods 41 respectively. During the backward movement of the sliding blocks 44, the multiple locking beads 43 that are slidably connected to the top of the outer wall of the main rod 41 separate, leaving space for the locking beads 43 to slide, thereby releasing the locking mechanism 4 from the locking restriction of the folded chair assembly 36 and the cross armrest 34. At this time, the elastic core 42 that is fixedly connected inside the main rod 41 releases the elastic force, generating an outward pushing force on the locking assembly 47, pushing the locking assembly 47 out from the preset docking area inside the main rod 41, completing the unlocking operation of the fixing mechanism 4. After the fixing mechanism 4 is unlocked, the cylinder assembly 37 at the bottom rear side of the two swing rods 31 in the retraction and installation mechanism 3 is activated. The cylinder assembly 37 includes a cylinder 371 and a piston rod 372. The two cylinders 371 are respectively fixedly connected to the rear ends of the adjacent sides of the two seat side panels 2. The piston rod 372, which is slidably connected inside the cylinder 371, is fixedly connected to the bottom rear side of the swing rod 31. After activation, the cylinder 371 drives the piston rod 372 to extend, and the piston rod 372 generates driving force to push the swing rod 31 to move. Since the two swing rods 31 are rotatably connected to the adjacent sides of the two seat side panels 2, under the push of the piston rod 372, the swing rod 31 rotates clockwise around its rotatable connection point with the seat side panel 2. During the rotation of the swing arm 31, it drives the fixed side plate 35, which is rotatably connected to its top, to move. Since the bottom sides of the two fixed side plates 35 are rotatably connected to the adjacent sides of the two seat side panels 2, the fixed side plates 35 rotate clockwise around their rotatable connection points with the seat side panels 2 under the drive of the swing arm 31. When the fixed side plates 35 move, the connecting rod 32 rotatably connected to its front end moves synchronously. The rocker arm 33 fixedly connected to the top of the connecting rod 32 moves together with the connecting rod 32. The horizontal handrail 34 fixedly connected to the adjacent sides of the two rocker arms 33 moves synchronously with the rocker arms 33. When the retraction and installation mechanism 3 completes the unfolding action, the horizontal handrail 34 contacts the ground. At this time, the cylinder assembly 37 stops working, and the horizontal handrail 34 provides stable support for subsequent passengers to sit. As the fixed side panels 35 rotate, the storage chair assembly 36, located on the adjacent side of the two fixed side panels 35, gradually unfolds with the rotation of the fixed side panels 35. The storage chair assembly 36 includes a pivot plate 361, a backrest 362, and a seat 363. The pivot plate 361 is fixed to the adjacent side of the fixed side panel 35, the backrest 362 is fixed to the rear end of the adjacent side of the pivot plate 361, and the seat 363 is rotatably connected to the front end of the adjacent side of the pivot plate 361. When the fixed side panels 35 drive the pivot plate 361 to move synchronously, the backrest 362 unfolds together with the pivot plate 361, and the seat 363 rotates around the pivot plate 361 to a horizontal state under its own weight and the linkage force of the mechanism. At this time, the storage chair assembly 36 is fully unfolded, and the seat 363... 363 is made of fiberglass and has an independent arc-shaped structure at the top. The arc-shaped structure conforms to the curve of the human buttocks and can support the muscles on both sides of the passenger's buttocks to reduce the soreness of sitting for a long time and provide passengers with comfortable sitting conditions. During this process, the handrail assembly 38 set at the bottom front of the subway side wall 1 remains fixed. The handrail assembly 38 includes a vertical handrail 381, a triangular handle 382 and rubber rings 383. The vertical handrail 381 is made of aluminum alloy and multiple rubber rings 383 are fixed to the outer wall. The triangular handle 382 is fixed to the top of the vertical handrail 381. Passengers can maintain their body balance by holding the vertical handrail 381 or the triangular handle 382. The rubber rings 383 can increase the friction between the hand and the outer wall of the vertical handrail 381 and improve the stability of holding. When the seats need to be folded up to free up space inside the subway, the cylinder assembly 37 is activated again. At this time, the cylinder 371 drives the piston rod 372 to retract, and the piston rod 372 generates a reverse driving force to pull the swing rod 31 to move. Under the pull of the piston rod 372, the swing rod 31 rotates counterclockwise around its rotational connection point with the seat side panel 2. The swing rod 31 drives the fixed side plate 35, which is rotated at the top, to rotate counterclockwise in sync. When the fixed side plate 35 rotates in the reverse direction, the connecting rod 32 at its front end moves in the reverse direction along with the fixed side plate 35. The connecting rod 32 drives the rocker arm 33 to move in the reverse direction, and the rocker arm 33 pulls the cross arm 34 to move in the reverse direction along with it. At the same time, the fixed side plate 35 drives the pivot plate 361 of the storage chair assembly 36 to move in the reverse direction. The pivot plate 361 drives the backrest 362 to retract towards the subway side wall 1. The seat surface 363 rotates in the reverse direction around the pivot plate 361 under the drive of the pivot plate 361 until it is in contact with the backrest 362. When the storage chair assembly 36 is completely retracted to a position close to the subway side wall 1, the cross arm 34 moves to a vertical position with the rocker arm 33. At this time, the cylinder assembly 37 stops working, and the cross arm 34 can be used as a hand support structure for standing passengers. After the storage chair assembly 36 is fully stowed, the fixing mechanism 4 needs to be operated to fix the stowed storage chair assembly 36 to prevent it from shaking during subway operation. During the fixing operation, the locking component 47 is first docked with the fixing mechanism 4. The locking component 47 includes a support rod 471, a second spring-loaded inner core 472, and a pressure ring 473. The support rod 471 is used to dock with the main body rod 41. The second spring-loaded inner core 472 is fixed inside the support rod 471, and the pressure ring 473 is fixed to the bottom of the outer wall of the support rod 471. The support rod 471 is pushed into the main body rod 41, and the outer wall of the support rod 471 slides along the inner wall of the main body rod 41 until the locking component 47 enters the preset docking area inside the main body rod 41, completing the initial docking of the locking component 47 with the fixing mechanism 4. Subsequently, an external force is applied to the sliding block 44, and the spring 45 fixedly connected to the top of the inner side of the sliding block 44 releases its elastic potential energy, pushing the locking block 46 at the bottom of the spring 45 to move. The locking block 46 acts on the sliding block 44, causing the sliding block 44 to slide forward and reset along the outer wall of the main body rod 41. After resetting, the inner wall of the sliding block 44 contacts and abuts against multiple locking beads 43, preventing the locking beads 43 from sliding along the outer wall of the main body rod 41. After the locking beads 43 are restricted, they form a clamping effect on the support rod 471. Through the spring 45 driving the sliding block 44 to reset, the sliding block 44 restricting the movement of the locking beads 43, and the locking beads 43 clamping the support rod 471, the locking component 47 is stably fixed inside the fixing mechanism 4, thereby realizing the locking and fixing of the storage chair component 36 after storage by the fixing mechanism 4. At this time, the chair is fully stored and remains stable, completing the entire chair storage process.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A subway seat installation structure, including a subway side wall (1), characterized in that: The front left and right ends of the subway side wall (1) are provided with seat side panels (2), and a folding and mounting mechanism (3) is provided between the two adjacent seat side panels (2). The folding and mounting mechanism (3) is used to install and store the seat. The front side of the subway side wall (1) is provided with a fixing mechanism (4). The fixing mechanism (4) is used to fix the seat after it is stored. The retractable installation mechanism (3) includes two swing arms (31). The two swing arms (31) are rotatably connected to the adjacent side of the two seat side panels (2) on opposite sides. The top of the two swing arms (31) is rotatably connected to a fixed side plate (35). The front end of the two fixed side plates (35) is rotatably connected to a connecting rod (32). The bottom of the two fixed side plates (35) is rotatably connected to the adjacent side of the two seat side panels (2) on opposite sides. The top of the two connecting rods (32) is fixedly connected to a rocker arm (33). The two adjacent sides are fixedly connected to the same horizontal handrail (34). The two fixed side plates (35) are provided with the same storage chair assembly (36) on adjacent sides. The bottom rear side of the two swing arms (31) is provided with a cylinder assembly (37). The front bottom end of the subway side wall (1) is provided with a handrail assembly (38).

2. The subway seat installation structure according to claim 1, characterized in that: The fixing mechanism (4) includes two main rods (41). The rear sides of the two main rods (41) are fixedly connected to the left and right ends of the front side of the subway side wall (1). The interior of the two main rods (41) is fixedly connected to a spring core (42). The top of the outer wall of the two main rods (41) is slidably connected to multiple locking beads (43). The outer wall of the two main rods (41) is slidably connected to a sliding block (44). The top of the inner side of the two sliding blocks (44) is fixedly connected to a spring spring (45). The bottom of the two spring springs (45) is fixedly connected to a locking block (46). The interior of the two main rods (41) is provided with a locking component (47).

3. The subway seat installation structure according to claim 1, characterized in that: The storage chair assembly (36) includes two pivot plates (361), with the opposite sides of the two pivot plates (361) fixedly connected to the adjacent sides of two fixed side plates (35), and a backrest (362) fixedly connected to the rear end of the adjacent side of the two pivot plates (361), and a seat surface (363) rotatably connected to the front end of the adjacent side of the two pivot plates (361).

4. The subway seat installation structure according to claim 1, characterized in that: The cylinder assembly (37) includes two cylinders (371), with the two cylinders (371) fixedly connected to the rear ends of the adjacent sides of the two seat side panels (2) on opposite sides. Both cylinders (371) have piston rods (372) slidably connected inside them, and the front ends of both piston rods (372) are fixedly connected to the rear bottom of the rocker arm (31).

5. The subway seat installation structure according to claim 1, characterized in that: The handrail assembly (38) includes a vertical handrail (381), the rear end of which is fixedly connected to the front side of the subway side wall (1), and the top of which is fixedly connected to a plurality of triangular handles (382).

6. The subway seat installation structure according to claim 3, characterized in that: The seat surface (363) is made of fiberglass and has an independent arc structure.

7. A subway seat installation structure according to claim 5, characterized in that: The vertical handrail (381) is made of aluminum alloy, and multiple rubber rings (383) are fixedly connected to the outer wall of the vertical handrail (381).

8. A subway seat installation structure according to claim 2, characterized in that: The locking assembly (47) includes a support rod (471), the outer wall of which is slidably connected to the inner wall of the main rod (41), a second spring-loaded inner core (472) is fixedly connected inside the support rod (471), and a pressure ring (473) is fixedly connected to the bottom of the outer wall of the support rod (471).

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