Lightweight seat bracket structure for subway

Abstract

The invention discloses a lightweight seat bracket structure for a subway, which comprises a seat arranged in the subway, and further comprises a plurality of connecting frames used for connecting the seat with a subway carriage; the fixing rod and the fixing shaft are fixedly arranged on the two adjacent connecting frames respectively; and the dust removing structure is arranged among the fixing rod, the fixing shaft and the seat and used for cleaning the seat and preventing dust accumulation. According to the seat, the design of angle adjustment, cup placement and reminding functions can be achieved, the intelligent service experience of a subway is undoubtedly improved, passengers can feel more intimate details in the riding process through the design, the user experience of public transportation is improved, and the intelligent service experience of the subway is improved. Moreover, modernization and humanization of a public transport system can be embodied, and more passengers are attracted to select subways to go out.

Description

Technical Field

[0001] The invention relates to the technical field of subway equipment, and in particular to a lightweight seat bracket structure for a subway. Background Art

[0002] The space in subway trains is usually limited, especially during peak hours when there are many passengers. The seats should be designed to save space as much as possible while providing structural support to ensure the stability of the seats. Since subway trains may encounter strong acceleration or braking during travel, the brackets help the seats remain stable when the train is moving, preventing the seats from excessive shaking or tilting, thereby ensuring the comfort and safety of passengers.

[0003] Passengers taking the subway, especially during long rides, may feel that the fixed seat angle is not suitable for them. Seats without angle adjustment function may not provide the best sitting support for different passengers, especially for passengers who need to adjust their seats to relieve back discomfort (such as the elderly or passengers with waist problems). The lack of angle adjustment will make the riding experience unsatisfactory and may cause fatigue and discomfort after a long ride. For passengers carrying drinks, during peak hours, especially those with children or traveling for a long time, the lack of a suitable cup holder may make it inconvenient to carry and use drinks. The random placement of cups may cause the carriage to be messy, increase the difficulty of cleaning, and may even affect the comfort of other passengers in the carriage. Therefore, a lightweight seat bracket structure for subways is urgently needed to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a lightweight seat support structure for a subway to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A lightweight seat support structure for a subway, comprising a seat arranged inside the subway, and further comprising:

[0007] A plurality of connecting frames for connecting the seats to the subway cars;

[0008] The fixed rod and the fixed shaft are respectively fixedly arranged on two adjacent connecting frames;

[0009] A dust cleaning structure, which is arranged between the fixed rod, the fixed shaft and the seat, and is used to clean the seat to prevent dust accumulation;

[0010] A limiting frame fixedly disposed on the lower surface of the seat;

[0011] A sliding plate, which is slidably arranged in a limiting frame;

[0012] A rotating rod, which is rotatably arranged on the sliding plate;

[0013] The storage structure is arranged on the rotating rod and is used to store beverage containers carried by passengers to prevent the beverage containers from tipping over when the subway brakes are activated.

[0014] Preferably, the seat is rotatably arranged at a corner, and two sliding frames are fixedly arranged on the lower surface of the seat, and the two sliding frames are respectively slidably arranged on corresponding connecting frames.

[0015] Preferably, a fixed half ring is fixedly installed at one end of the fixed shaft, and sealing plates are sealingly and slidingly arranged at both ends of the fixed half ring, and multiple first springs are fixedly arranged on the sides of the two sealing plates close to each other, and a guide block is fixedly arranged between the multiple first springs, an incomplete gear is fixedly installed on the guide block, a tooth plate 2 is fixedly installed on the lower surface of the sliding plate, and the incomplete gear is sealingly rotatably arranged on the fixed shaft, and hydraulic oil is filled between the incomplete gear and the fixed half ring and inside the fixed half ring.

[0016] Preferably, both sides of the fixed semi-ring are fixedly connected with multiple one-way tubes, the multiple one-way tubes located near the opening of the fixed semi-ring can only allow hydraulic oil to enter, and the remaining one-way tubes far from the opening of the fixed semi-ring can only squeeze out the hydraulic oil in the fixed semi-ring.

[0017] Preferably, the cleaning structure includes a gear 1 rotatably arranged at one end of a fixed shaft, a tooth plate 2 meshing with gear 1 and one of the incomplete gears and used alternately, a reciprocating screw is rotatably arranged on one side of the gear 1, a ball nut is threadedly mounted on the reciprocating screw, a fixing ring is fixedly mounted on the ball nut, two guide rods are fixedly mounted on one side of the fixing ring, a piston plate is fixedly mounted on one end of the two guide rods, a fixing cylinder is fixedly mounted on one end of the fixing rod, and the piston plate seals and slides in the fixing cylinder.

[0018] Preferably, the fixed cylinder is fixedly connected with a Y-shaped tube, the upper end of the Y-shaped tube is fixedly connected with an air outlet pipe, and the upper end of the air outlet pipe is fixedly connected to the turning point of the seat, so that dust can be sucked from the rotating part of the seat when the angle of the seat is adjusted.

[0019] Preferably, a plurality of springs are fixedly installed between one side of the sliding plate and the limit frame, a torsion bar is rotatably arranged on the sliding plate, a bevel gear 1 is fixedly installed at one end of the torsion bar, and a bevel gear 2 meshing with the bevel gear 1 is fixedly installed at the upper end of the rotating rod.

[0020] Preferably, a displacement hole is provided on the seat, and a plurality of springs three are fixedly installed in the displacement hole, an extrusion rod is fixedly installed on the upper ends of the plurality of springs three, a gear rod one is fixedly installed on the lower end of the extrusion rod, and a gear two meshing with the gear rod one is fixedly installed on the torsion bar, and when the spring three is in a non-stretched and non-compressed state, the gear rod one is separated from the gear two and will not affect the movement of the sliding plate.

[0021] Preferably, the storage structure includes a limiting ring slidably arranged on a rotating rod, a plurality of springs 2 are fixedly arranged at both ends of the limiting ring, another limiting ring is fixedly installed at one end of the plurality of springs 2, and a base is fixedly arranged at the lower end of the rotating rod.

[0022] Preferably, a limiting arc plate is fixedly provided inside the base, and a plurality of springs four are fixedly mounted on the limiting arc plate, and an inclined plate is fixedly provided on the upper ends of the plurality of springs four, and the center of the limiting arc plate is a recessed part, in which a rolling ball is placed.

[0023] In the above technical solution, the beneficial effects of the present invention are:

[0024] The lightweight seat support structure for subways can adjust the seat angle according to personal needs to meet the requirements of different passengers for sitting posture. For the elderly, pregnant women or passengers with physical discomfort, the seat angle can be adjusted to reduce the body burden and provide a more comfortable experience. The change of seat angle can also help relieve the fatigue caused by sitting for a long time, provide more appropriate support, reduce the pressure on the neck, waist and other parts, and improve the comfort of long-distance travel; at the same time, the storage reminder setting for water cups allows passengers to easily and safely place water cups in a fixed position when riding, and can prevent liquids from spilling during driving, ensuring the cleanliness of the carriage, especially during peak hours. With their hands free, passengers can hold tickets, bags or use mobile phones more easily, and will not feel inconvenienced by having no place to put water cups. When people leave, the water cups will be rotated out from under the seats to prevent people from forgetting their belongings. The seats can adjust their angles, place water cups, and have reminder functions, which undoubtedly enhances the intelligent service experience of the subway. These designs not only allow passengers to feel more thoughtful details during the ride, enhance the user experience of public transportation, but also reflect the modernization and humanity of the public transportation system, attracting more passengers to choose the subway for travel. Good design will promote the subway as a convenient public transportation tool and increase its comfort and user satisfaction.

[0025] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0026] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0028] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of the structure of an air outlet duct provided in an embodiment of the present invention;

[0030] Figure 3 The embodiment of the present invention provides Figure 2 A schematic diagram of the structure from another perspective;

[0031] Figure 4 A schematic diagram of the structure of a reciprocating screw rod and a fixed cylinder provided in an embodiment of the present invention;

[0032] Figure 5 A schematic diagram of the structure of gear 2 and bevel gear 1 provided in an embodiment of the present invention;

[0033] Figure 6 A schematic diagram of the structure of a fixing ring and a piston plate provided in an embodiment of the present invention;

[0034] Figure 7 A schematic diagram of the structure of an incomplete gear provided by an embodiment of the present invention;

[0035] Figure 8 A side view of an incomplete gear provided by an embodiment of the present invention;

[0036] Fig. 9 The embodiment of the present invention provides Figure 8 Structural cross-sectional view along the AA direction;

[0037] Fig.10 A schematic diagram of the structure of a limiting ring and a second spring provided in an embodiment of the present invention;

[0038] Fig.11 A top view of a base provided by an embodiment of the present invention;

[0039] Fig.12 The embodiment of the present invention provides Fig.11 Structural cross-sectional view along the BB direction.

[0040] Description of reference numerals:

[0041] 1. Seat; 2. Extrusion rod; 3. Connecting frame; 4. Base; 5. Air outlet duct; 6. Sliding frame; 7. Fixed cylinder; 8. Y-shaped tube; 9. Fixed rod; 10. Spring 1; 11. Sliding plate; 12. Fixed shaft; 13. Reciprocating screw; 14. Rotating rod; 15. Limiting ring; 16. Spring 2; 17. Torsion bar; 18. Limiting frame; 19. Fixed ring; 20. Ball nut; 21. Incomplete gear; 22. Gear 1; 23. Piston plate; 24. Spring 3; 25. Gear rod 1; 26. Gear 2; 27. Bevel gear 1; 28. Bevel gear 2; 29. ​​Gear plate 2; 30. Inclined plate; 31. Spring 4; 32. Limiting arc plate; 33. Rolling ball; 34. Fixed semi-ring; 35. Guide block; 36. Sealing plate; 37. One-way tube. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0043] See also Figure 1 -- Fig. 9 , a lightweight seat support structure for a subway provided by an embodiment of the present invention comprises a seat 1 arranged inside the subway, and also comprises: a plurality of connecting frames 3, which are used to connect the seat 1 with the subway car, and the seat 1 is rotatably arranged at the corner (refer to Figure 1 The seat 1 is divided into two parts, vertical and horizontal. The top of the vertical part rotates relative to the subway car. The connection between the vertical part and the horizontal part is connected in a rotating form. Pulling the horizontal part can adjust the angle of the seat 1, so that the angle between the vertical part and the horizontal part is gradually adjusted from 90° to 135°, and adjusted to the angle required by the passenger to meet the passenger's use needs. Two sliding frames 6 are fixedly set on the lower surface of the seat 1. The two sliding frames 6 are respectively slidably set on the corresponding connecting frames 3. Pushing the seat 1 will drive the seat 1 to slide on the connecting frames 3 under the setting of the sliding frames 6. At the same time, the top of the seat 1 is fixedly set between the subway car, so that the seat 1 can be adjusted to the sitting angle required by the passenger. When the passenger takes the subway for a long time, the discomfort caused to the passenger during the ride is reduced, and the passenger is provided with appropriate rest. Especially for the subway passing through the train platform and the high-speed railway platform, installing this kind of seat in the subway greatly improves the passenger satisfaction and comfort.

[0044] The invention also includes a fixed rod 9 and a fixed shaft 12, which are respectively fixedly arranged on two adjacent connecting frames 3. A fixed semi-ring 34 is fixedly arranged at one end of the fixed shaft 12. Sealing plates 36 are sealingly and slidably arranged at both ends of the fixed semi-ring 34. A plurality of first springs are fixedly arranged on the side where the two sealing plates 36 are close to each other. A guide block 35 is fixedly arranged between the plurality of first springs. An incomplete gear 21 is fixedly arranged on the guide block 35. A tooth plate 29 is fixedly arranged on the lower surface of the sliding plate 11. The incomplete gear 21 is sealingly and rotatably arranged on the fixed shaft 12. Hydraulic oil is filled between the incomplete gear 21 and the fixed semi-ring 34 and inside the fixed semi-ring 34. A plurality of one-way pipes 37 are fixedly connected on both sides of the fixed semi-ring 34. The plurality of one-way pipes 37 located near the opening of the fixed semi-ring 34 can only enter the hydraulic oil, and the remaining one-way pipes 37 far away from the opening of the fixed semi-ring 34 can only squeeze out the hydraulic oil in the fixed semi-ring 34.

[0045] When the seat 1 is in a locked state (the incomplete gear 21 is meshed with the tooth plate 29), when the subway is running on an inclined section, the seat 1 will drive the tooth plate 29 to generate a downward extrusion stress on the incomplete gear 21. At this time, one side is subjected to greater force, which will cause the guide block 35 to squeeze the multiple first springs on the corresponding side. At this time, the sealing plate 31 connected thereto slides in the fixed semi-ring 34, squeezing the hydraulic oil therein, so that the hydraulic oil enters the area between the fixed semi-ring 34 and the incomplete gear 21 (in a balanced state, the height of the hydraulic oil between the fixed semi-ring 34 and the incomplete gear 21 does not exceed the horizontal height of the uppermost one-way tube 37). At this time, the height of the hydraulic oil in the area between the fixed semi-ring 34 and the incomplete gear 21 increases, and enters the fixed semi-ring 34 through the upper one-way tube 37 for shock absorption. This process can transfer vibration and concentrated stress, convert them into kinetic energy of hydraulic oil, play a shock absorption role, reduce the concentrated stress area, and increase the service life of the device.

[0046] See also Figure 2 -- Figure 6, also includes a dust cleaning structure, which is arranged between the fixed rod 9, the fixed shaft 12 and the seat 1, and is used to clean the seat 1 to prevent dust accumulation. The dust cleaning structure includes a gear 22 rotatably arranged at one end of the fixed shaft 12, and the tooth plate 29 is meshed with one of the gear 22 and the incomplete gear 21 and is used alternately. A reciprocating screw 13 is rotatably arranged on one side of the gear 22, and a ball nut 20 is threadedly installed on the reciprocating screw 13. A fixed ring 19 is fixedly installed on the ball nut 20. Two guide rods are fixedly arranged on one side of the fixed ring 19, and a piston plate 23 is fixedly installed on one end of the two guide rods. A fixed cylinder 7 is fixedly installed on one end of the fixed rod 9, and the piston plate 23 is sealed and slid in the fixed cylinder 7. A Y-shaped tube 8 is fixedly connected to the fixed cylinder 7, and the lower end of the Y-shaped tube 8 rotates A baffle is provided, and the baffle can only be opened toward the outside of the Y-shaped tube 8. In a normal state, the baffle forms a seal on the lower end of the Y-shaped tube 8. When negative pressure is formed in the fixed tube 7, there will only be one air inlet through the air outlet 55 (the lower end of the Y-shaped tube 8 is in a closed state under the setting of the baffle). At this time, dust at the rotating position of the seat 1 can be sucked into the Y-shaped tube 8. However, due to the connection angle between the Y-shaped tube 8 and the fixed tube 7, the design of the Y-shaped tube allows the gas to have multiple branches in the pipeline, and the flow direction changes. When dust enters the pipeline, it usually flows with the airflow. If the airflow bends or changes direction when passing through the branch of the pipeline, the dust particles can easily deviate from the main direction of the airflow due to inertia and remain in the branch pipeline, so that the dust sucked into the Y-shaped tube 8 will not enter the fixed tube 7 (refer to Figure 2 ), the upper end of the Y-shaped tube 8 is fixedly connected to the air outlet duct 5, and the upper end of the air outlet duct 5 is fixedly connected to the turning point of the seat 1. When the angle adjustment of the seat 1 is completed, the fixed cylinder 7 is in a positive pressure state. When the angle of the seat 1 is adjusted, the rotating part of the seat 1 can be dusted. If the dust is not cleaned, a certain amount of dust will accumulate at the rotating part after long-term use, causing trouble for subsequent processing.

[0047] See also Figure 2 -- Figure 6, also includes a limiting frame 18, which is fixedly arranged on the lower surface of the seat 1, a sliding plate 11, which is slidably arranged in the limiting frame 18, a plurality of springs 10 are fixedly installed between one side of the sliding plate 11 and the limiting frame 18, a torsion bar 17 is rotatably arranged on the sliding plate 11, a bevel gear 27 is fixedly installed on one end of the torsion bar 17, a bevel gear 28 meshing with the bevel gear 27 is fixedly installed on the upper end of the rotating rod 14, a displacement hole is opened on the seat 1, a plurality of springs 3 24 are fixedly installed in the displacement hole, an extrusion rod 2 is fixedly installed on the upper ends of the plurality of springs 3 24, a gear 2 is fixedly installed on the lower end of the extrusion rod 2, a gear 2 26 meshing with the gear 25 is fixedly installed on the torsion bar 17, and when the spring 3 24 is in a non-stretched and non-compressed state, the gear 1 25 is separated from the gear 2 26, and will not affect the movement of the sliding plate 11.

[0048] See also Fig.10 -- Fig.12 , and also includes a rotating rod 14, which is rotatably arranged on the sliding plate 11, and a storage structure, which is arranged on the rotating rod 14 and is used to store beverage containers carried by passengers to prevent the beverage containers from tipping over when the subway brake is activated. The storage structure includes a limiting ring 15 slidably arranged on the rotating rod 14, and multiple springs 2 16 are fixedly arranged at both ends of the limiting ring 15. One end of the multiple springs 2 16 is jointly fixedly installed with another limiting ring 15. The sliding lower limiting ring 15 can be adjusted according to the height of the beverage bottle, and at the same time, it cooperates with the multiple springs 2 16 to adjust according to the diameter of the beverage bottle to adapt to different beverage bottles (especially milk tea cups, because they are easy to spill due to the inserted straw, and need to be fixed the most). The fixed lower end of the rotating rod 14 is fixedly provided with a base 4, and the diameter of the upper port of the base 4 can make the beverage bottle just placed on the base 4 and will not contact the inclined plate 30. A limited arc plate 32 is fixedly provided in the base 4, and a plurality of springs four 31 are fixedly installed on the limited arc plate 32. The upper ends of the plurality of springs four 31 are jointly fixedly provided with the inclined plate 30. The center of the limited arc plate 32 is a recessed part, in which a rolling ball 33 is placed. When the subway starts, brakes or turns, the rolling ball 33 breaks the horizontal state and rolls under the trajectory of the limited arc plate 32. The highest point of the rolling ball 33 in the limited arc plate 32 is higher than the horizontal highest point of the limited arc plate 32. When the rolling ball 33 rolls, the inclined plate 33 will tilt, which assists the beverage bottle in adjusting the angle and ensures the horizontal stability of the beverage bottle.

[0049] The specific operation steps of the present invention are:

[0050] When the passenger sits on the seat 1, he holds the torsion bar 17 with one hand and moves it in the direction of the spring 10. At this time, the sliding plate 11 drives the tooth plate 29 to mesh with the gear 1 22. At this time, the seat 1 is equivalent to being unlocked. At this time, the body drives the seat 1 to move forward, and the angle of the seat 1 is adjusted. Under the meshing of the tooth plate 29 and the gear 1 22, the reciprocating screw 13 is driven to rotate. The rotation of the reciprocating screw 13 drives the fixed ring 19 to move, thereby driving the piston plate 23 to move in the fixed cylinder 7 through the guide rod, squeezing the air in the fixed cylinder 7. The air is pushed upwards and discharged through the air outlet 5. The air discharged from the air outlet 5 will be transported to the rotation position of the seat 1 to prevent dust from accumulating there. When the angle adjustment of the seat 1 is completed, the force applied to the torsion bar 17 is released. The sliding plate 11 is driven to slide to the initial state under the action of the spring 10, so that the tooth plate 29 is meshed with the incomplete gear 12 again to achieve the stability of the seat 1. When the seat 1 is adjusted back to the right angle state (the initial state is as shown in FIG. 1 ), the air is pushed upwards and discharged through the air outlet 5. The air discharged from the air outlet 5 will be transported to the rotation position of the seat 1 to prevent dust from accumulating there. When the angle adjustment of the seat 1 is completed, the force applied to the torsion bar 17 is released. The sliding plate 11 is driven to slide to the initial state under the action of the spring 10, so that the tooth plate 29 is meshed with the incomplete gear 12 again to achieve the stability of the seat 1. Figure 1 As shown), the reciprocating screw 13 rotates in the opposite direction, and air is taken in from the air outlet 5. At this time, the dust particles entering the air outlet 5 will fall into the lower end of the Y-shaped tube 8 under the action of gravity and be discharged, thereby ensuring the hygiene of the seat 1, preventing the formation of sanitary dead corners, reducing the number of cleaning times, and preventing dust from accumulating;

[0051] When a passenger needs to put a drink in the subway, the two limiting rings 15 are moved to a suitable height, and the drink bottle is placed on the base 4. The passenger then sits on the seat 1. At this time, under the gravity of the passenger, the squeeze rod 2 moves downward, driving the gear rod 1 25 to mesh with the gear 2 26, driving the gear 2 26 to rotate, and the rotation of the gear 2 26 drives the bevel gear 1 27 to rotate. The rotation of the bevel gear 1 27 drives the rotating rod 14 to rotate through the bevel gear 2 28. The rotation of the rotating rod 14 drives the drink bottle on the base 4 to rotate to the bottom of the seat 1, which can prevent inconvenience to the passengers and free the passengers' hands. At the same time, it can prevent passengers from drinking in violation of the requirements on the subway, and keep the carriage clean. When the person leaves the seat 1, the squeeze rod 2 is no longer subjected to the force and rebounds under the action of the spring 3 24. At this time, the gear 2 26 reverses, driving the drink bottle to rotate out from the bottom of the seat 1 again, reminding the person to take out the drink.

[0052] When the subway starts and arrives at the station, due to inertia, the beverage liquid in the car will continue to maintain its original state of motion, that is, the liquid will move forward, which is manifested as the liquid in the beverage bottle accumulating on the side of the bottle mouth. If the braking action is quick, the liquid will produce a short-term "forward rush" phenomenon due to inertia. At this time, the rolling ball 33 will also be displaced, and the moving direction is the same as the tilting and forward direction. At this time, the inclined plate 30 will tilt under the action of the rolling ball 33, and the inclined inclined plate 30 will generate a supporting force on the bottom of the beverage bottle, so that the side with the liquid in the beverage bottle is slightly lifted upward to prevent beverages with straws such as milk tea from spilling, thereby ensuring the relative balance of the liquid in the bottle.

[0053] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lightweight seat support structure for a subway, comprising a seat (1) arranged inside the subway, characterized in that: Also includes: A plurality of connecting frames (3) used for connecting the seat (1) and the subway carriage; A fixed rod (9) and a fixed shaft (12), both of which are fixedly arranged on two adjacent connecting frames (3); A dust cleaning structure, which is arranged between the fixed rod (9), the fixed shaft (12) and the seat (1), and is used to clean the seat (1) to prevent dust accumulation; A limiting frame (18) fixedly arranged on the lower surface of the seat (1); A sliding plate (11) is slidably arranged in a limiting frame (18); A rotating rod (14) rotatably mounted on the sliding plate (11); The storage structure is arranged on the rotating rod (14) and is used to store beverage containers carried by passengers to prevent the beverage containers from tipping over when the subway brakes are activated.

2. The lightweight seat support structure for subway according to claim 1, characterized in that: The seat (1) is rotatably arranged at a corner, and two sliding frames (6) are fixedly arranged on the lower surface of the seat (1), and the two sliding frames (6) are respectively slidably arranged on corresponding connecting frames (3).

3. The lightweight seat support structure for subway according to claim 1, characterized in that: A fixed half ring (34) is fixedly mounted on one end of the fixed shaft (12), and sealing plates (36) are sealingly and slidably mounted on both ends of the fixed half ring (34). Multiple first springs are fixedly mounted on the sides of the two sealing plates (36) close to each other, and a guide block (35) is fixedly mounted between the multiple first springs. An incomplete gear (21) is fixedly mounted on the guide block (35), and a toothed plate 2 (29) is fixedly mounted on the lower surface of the sliding plate (11), and the incomplete gear (21) is sealingly and rotatably mounted on the fixed shaft (12), and hydraulic oil is filled between the incomplete gear (21) and the fixed half ring (34) and inside the fixed half ring (34).

4. The lightweight seat support structure for subway according to claim 3, characterized in that: Both sides of the fixed semi-ring (34) are fixedly connected with a plurality of one-way tubes (37); the plurality of one-way tubes (37) located near the opening of the fixed semi-ring (34) can only allow hydraulic oil to enter, and the remaining one-way tubes (37) located away from the opening of the fixed semi-ring (34) can only squeeze out the hydraulic oil in the fixed semi-ring (34).

5. The lightweight seat support structure for subway according to claim 3, characterized in that: The dust cleaning structure comprises a gear 1 (22) rotatably arranged at one end of a fixed shaft (12); a tooth plate 2 (29) meshing with one of the gear 1 (22) and the incomplete gear (21) for use alternately; a reciprocating screw (13) is rotatably arranged on one side of the gear 1 (22); a ball nut (20) is threadedly mounted on the reciprocating screw (13); a fixing ring (19) is fixedly mounted on the ball nut (20); two guide rods are fixedly mounted on one side of the fixing ring (19); a piston plate (23) is fixedly mounted on one end of the two guide rods; a fixing cylinder (7) is fixedly mounted on one end of the fixing rod (9), and the piston plate (23) is sealingly slidable in the fixing cylinder (7).

6. The lightweight seat support structure for subway according to claim 5, characterized in that: The fixed tube (7) is fixedly connected to a Y-shaped tube (8), the upper end of the Y-shaped tube (8) is fixedly connected to an air outlet pipe (5), and the upper end of the air outlet pipe (5) is fixedly connected to the turning point of the seat (1), so that dust can be sucked from the rotating part of the seat (1) when the angle of the seat (1) is adjusted.

7. The lightweight seat support structure for subway according to claim 1, characterized in that: A plurality of springs (10) are fixedly mounted between one side of the sliding plate (11) and the limiting frame (18); a torsion bar (17) is rotatably mounted on the sliding plate (11); a bevel gear (27) is fixedly mounted on one end of the torsion bar (17); and a bevel gear (28) meshing with the bevel gear (27) is fixedly mounted on the upper end of the rotating rod (14).

8. The lightweight seat support structure for subway according to claim 7, characterized in that: The seat (1) is provided with a displacement hole, in which a plurality of springs three (24) are fixedly installed, an extrusion rod (2) is fixedly installed on the upper ends of the plurality of springs three (24), a gear rod one (25) is fixedly installed on the lower end of the extrusion rod (2), a gear rod two (26) meshing with the gear rod one (25) is fixedly installed on the torsion bar (17), and when the spring three (24) is in a non-stretched and non-compressed state, the gear rod one (25) is separated from the gear rod two (26), and will not affect the movement of the sliding plate (11).

9. The lightweight seat support structure for subway according to claim 1, characterized in that: The storage structure comprises a limiting ring (15) slidably arranged on a rotating rod (14), a plurality of springs (16) being fixedly arranged at both ends of the limiting ring (15), another limiting ring (15) being fixedly mounted at one end of the plurality of springs (16), and a base (4) being fixedly arranged at the lower end of the rotating rod (14).

10. The lightweight seat support structure for subway according to claim 9, characterized in that: A limit arc plate (32) is fixedly arranged in the base (4), a plurality of springs four (31) are fixedly mounted on the limit arc plate (32), an inclined plate (30) is fixedly arranged at the upper ends of the plurality of springs four (31), and the center of the limit arc plate (32) is a recessed area in which a rolling ball (33) is placed.

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