Rapid adjusting and mounting structure for train seat

Abstract

The invention discloses a train seat quick adjusting and mounting structure which comprises a mounting seat fixedly connected with a train bottom plate through a bolt and other structures. The seat plate is of a rectangular plate body structure, and sponge or a plate support is arranged in the seat plate; according to the invention, under the action of the dismounting buffer structure, the first rectangular plate and the seat plate can be subjected to auxiliary dismounting, and meanwhile, during dismounting, only a round clamping block and a round clamping frame need to be clamped, so that the first rectangular plate and the seat plate can be conveniently dismounted, and the mounting and dismounting efficiency is greatly improved. The first threaded clamping rod is fixed to the first threaded hole and the second threaded hole, then the second rectangular plate and other components can be fixed, meanwhile, under the action of the adjusting insertion rod, the seat plate and other components can be subjected to disassembly, assembly, fixation and height adjustment, the whole disassembly and assembly steps are simple, operation by professionals is not needed, and maintenance and replacement are convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of seat adjustment and installation structures, and particularly to a rapid adjustment and installation structure for train seats. Background Art

[0002] Train seats are devices for passengers to sit on inside the train. Generally, train seats are backrest seats, which can be leaned on by passengers during the ride for rest. According to the type and grade of the train, the configuration and comfort of the seats also vary.

[0003] Considering that during the use of train seats, there may be situations of damage or cleaning and maintenance. At this time, the train seats need to be disassembled and maintained, and the disassembly, maintenance, and subsequent installation all need to be assisted by installation structures, etc. Therefore, some adjustment and installation structures with special structures and functions can be applied.

[0004] Generally, during the installation of traditional adjustment and installation structures, the disassembly and assembly steps are cumbersome, and professional disassembly and assembly tools and methods are required for disassembly and assembly. As a result, the overall disassembly and assembly threshold is increased, making disassembly and assembly require professional personnel, which is very inconvenient. And after installation, the seat can only be adjusted in terms of the backrest. As a result, the position of the seat is relatively fixed and cannot be adjusted assistively according to the actual needs of passengers, reducing the overall riding comfort. Since the distance between front and rear passengers is fixed, existing seats generally do not perform front-back adjustment, resulting in some passengers with larger body sizes being very crowded and inconvenient when sitting, and passengers sitting side by side cannot be misaligned, resulting in some passengers having intersections with surrounding passengers during work or rest, thereby affecting the overall riding experience.

[0005] In summary, it is necessary to propose a rapid adjustment and installation structure for train seats to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a rapid adjustment and installation structure for train seats to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A rapid adjustment and installation structure for train seats, comprising:

[0009] An installation base, which is fixedly connected to the train floor through structures such as bolts;

[0010] A seat plate, which is a rectangular plate structure and is internally provided with sponge or plate brackets;

[0011] Limit adjustment structure, the limit adjustment structure is arranged on the top of the mounting seat and is used to adjust the front-back position of the seat plate. The limit adjustment structure includes a slide rail plate and a first rectangular plate. The number of slide rail plates is two and they are symmetrically and fixedly connected to the top of the mounting seat;

[0012] Disassembly and assembly buffer structure, the disassembly and assembly buffer structure is arranged between the first rectangular plate and the seat plate. The disassembly and assembly buffer structure includes round clamping blocks. The number of round clamping blocks is two and they are symmetrically and fixedly connected to the top of the first rectangular plate. The outer surface of the round clamping block is clamped with a round clamping frame, and the top of the outer surface of the round clamping frame is fixedly connected with a second rectangular plate;

[0013] Adjustable backrest structure, the adjustable backrest structure is arranged on one side of the seat plate. The adjustable backrest structure includes a backrest body, and the bottom of the backrest body is fixedly connected with a rotating block.

[0014] Preferably, the limit adjustment structure further includes an auxiliary sliding groove opened on the inner wall of the slide rail plate. The bottom of the outer surface of the first rectangular plate is fixedly connected with a first connecting rod, the bottom end of the first connecting rod is fixedly connected with a first round frame, the inner wall of the first round frame is rotatably connected with a first rolling wheel, and one side of the first round frame is fixedly connected with an auxiliary sliding rod, and the auxiliary sliding rod is slidably arranged on the inner wall of the auxiliary sliding groove.

[0015] Preferably, the bottom of the outer surface of the first rectangular plate is symmetrically and fixedly connected with second connecting rods, the bottom ends of the second connecting rods are fixedly connected with second round frames, and both sides between the inner walls of the second round frames are rotatably connected with second rolling wheels.

[0016] Preferably, both sides of the outer surface of the first rectangular plate are symmetrically and fixedly connected with Z-shaped plates. The top of the mounting seat is fixedly connected with a partition baffle, and limit auxiliary grooves are symmetrically opened on both sides of the partition baffle. One side of the Z-shaped plate is clamped with the inner wall of the limit auxiliary groove, a clamping rod is inserted into the inner wall of the Z-shaped plate, and a clamping hole is opened on the inner wall of the top of the mounting seat, and the clamping rod is clamped with the inner wall of the clamping hole.

[0017] Preferably, the disassembly and assembly buffer structure further includes a first round hole opened on the inner wall of the first rectangular plate, a second round hole is opened on the inner wall of the second rectangular plate, an auxiliary insertion cylinder is fixedly connected to the bottom of the second rectangular plate, an adjustment insertion rod is inserted into the inner walls of the first round hole, the second round hole and the auxiliary insertion cylinder, and the top end of the adjustment insertion rod is fixedly connected with a third rectangular plate.

[0018] Preferably, a first screw hole is opened on the inner wall of the round clamping block, a second screw hole is opened on the inner wall of the round clamping frame, and a first threaded clamping rod is threadedly connected to the inner walls of the first screw hole and the second screw hole.

[0019] Preferably, a third threaded hole is provided in the inner wall of the auxiliary insertion cylinder, a fourth threaded hole is provided in the inner wall of the adjusting insertion rod, and a second threaded clamping rod is threadedly connected to the inner walls of the third threaded hole and the fourth threaded hole.

[0020] Preferably, two fixing cylinders are symmetrically and fixedly connected to the top of the outer surface of the third rectangular plate. A sliding rod is slidably connected to the inner wall of the fixing cylinder. The top end of the sliding rod is fixedly connected to the bottom of the seat plate. A return spring is sleeved on the outer surface of the sliding rod, and two ends of the return spring are respectively fixedly connected to the bottom of the seat plate and the top of the fixing cylinder.

[0021] Preferably, the adjusting backrest structure further includes an auxiliary groove provided on one side of the seat plate. An auxiliary rotating rod is rotatably connected to the inner wall of the auxiliary groove, and the outer surface of the auxiliary rotating rod is fixedly connected to the inner wall of the rotating block.

[0022] Preferably, one end of the auxiliary rotating rod penetrates through the seat plate and is fixedly connected to an auxiliary circular plate. A clamping circular rod is provided in the inner wall of the auxiliary circular plate. A plurality of clamping circular holes are provided on one side of the outer surface of the seat plate. The plurality of clamping circular holes are arranged at equal intervals along the circumferential direction of the auxiliary rotating rod. The outer surface of the clamping circular rod is clamped with the inner wall of the clamping circular hole.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: Under the action of the disassembly and assembly buffer structure, the present invention can assist in the disassembly and assembly of the first rectangular plate and the seat plate. At the same time, during disassembly and assembly, only the round clamping block needs to be clamped with the round clamping frame, and then the first threaded clamping rod is fixed to the first threaded hole and the second threaded hole, so as to fix components such as the second rectangular plate. At the same time, under the action of the adjusting insertion rod, components such as the seat plate can be disassembled, assembled and fixed, and the height can be adjusted. The whole disassembly and assembly steps are simple, and no professional personnel are required for operation. Maintenance and replacement are convenient. At the same time, under the action of the limit adjusting structure, the front and rear positions of the seat plate can be adjusted, so that the position of the seat plate can be adjusted according to actual use requirements, and the seat plate can be adjusted in a staggered manner. At the same time, under the action of the adjusting backrest structure, the angle of the backrest body can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 To show the overall structural schematic diagram of the rapid adjustment and installation structure of the train seat;

[0026] Figure 2 Schematic diagram showing the upward view of the quick-adjustment mounting structure of the train seat;

[0027] Figure 3 Schematic diagram showing the connection structure between the first rectangular plate and the mounting seat of the quick-adjustment mounting structure of the train seat;

[0028] Figure 4 Schematic diagram showing the structure at the mounting seat of the quick-adjustment mounting structure of the train seat;

[0029] Figure 5 Schematic diagram showing the structure at the first rectangular plate of the quick-adjustment mounting structure of the train seat;

[0030] Figure 6 Schematic diagram showing the structure at the Z-shaped plate of the quick-adjustment mounting structure of the train seat;

[0031] Figure 7 Schematic diagram showing the structure at the second rectangular plate of the quick-adjustment mounting structure of the train seat;

[0032] Figure 8 Schematic diagram showing the structure at the seat plate of the quick-adjustment mounting structure of the train seat;

[0033] Figure 9 Schematic diagram showing the structure at the backrest body of the quick-adjustment mounting structure of the train seat;

[0034] Figure 10 Schematic diagram showing the quick-adjustment mounting structure of the train seat Figure 9 Enlarged view at A in the figure.

[0035] 1. Mounting seat; 2. Seat plate;

[0036] 3. Limit adjustment structure; 31. Slide rail plate; 32. Auxiliary chute; 33. First rectangular plate; 34. First connecting rod; 35. First round frame; 36. First rolling wheel; 37. Auxiliary slide rod; 38. Second connecting rod; 39. Second round frame; 310. Second rolling wheel; 311. Z-shaped plate; 312. Partition baffle; 313. Limit auxiliary groove; 314. Clamping rod; 315. Clamping hole;

[0037] 4. Disassembly and assembly buffer structure; 41. Round clamping block; 42. First screw hole; 43. First round hole; 44. Round clamping frame; 45. Second screw hole; 46. First threaded clamping rod; 47. Second rectangular plate; 48. Auxiliary insertion cylinder; 49. Second round hole; 410. Third screw hole; 411. Adjusting insertion rod; 412. Second threaded clamping rod; 413. Fourth screw hole; 414. Third rectangular plate; 415. Fixed cylinder; 416. Sliding rod; 417. Return spring;

[0038] 5. Adjusting backrest structure; 51. Auxiliary groove; 52. Auxiliary rotating rod; 53. Rotating block; 54. Backrest body; 55. Auxiliary circular plate; 56. Positioning circular rod; 57. Positioning circular hole. Detailed implementation manners

[0039] To make the technical solutions and advantages of the present invention clearer, the following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the accompanying drawings in the embodiments of the present invention:

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] Please refer to Figures 1 to 10 , the present invention provides a technical solution:

[0042] A rapid adjustment and installation structure for a train seat, comprising: a mounting seat 1, which is fixedly connected to the train floor by means of bolts and other structures; a seat plate 2, which is a rectangular plate structure and is internally provided with sponge or plate brackets; a limit adjustment structure 3, which is arranged on the top of the mounting seat 1 and is used to adjust the front and rear positions of the seat plate 2. The limit adjustment structure 3 includes a slide rail plate 31 and a first rectangular plate 33. The number of slide rail plates 31 is two and they are symmetrically and fixedly connected to the top of the mounting seat 1; a disassembly and assembly buffer structure 4, which is arranged between the first rectangular plate 33 and the seat plate 2. The disassembly and assembly buffer structure 4 includes circular clamping blocks 41. The number of circular clamping blocks 41 is two and they are symmetrically and fixedly connected to the top of the first rectangular plate 33. The outer surface of the circular clamping block 41 is clamped with a circular clamping frame 44. The top of the outer surface of the circular clamping frame 44 is fixedly connected to a second rectangular plate 47; an adjusting backrest structure 5, which is arranged on one side of the seat plate 2. The adjusting backrest structure 5 includes a backrest body 54, and the bottom of the backrest body 54 is fixedly connected to a rotating block 53.

[0043] Under the action of the disassembly and assembly buffer structure 4, the first rectangular plate 33 and the seat plate 2 can be assisted in disassembly and assembly. At the same time, during disassembly and assembly, only the round clamping block 41 needs to be clamped with the round clamping frame 44, and then the first threaded clamping rod 46 is fixed with the first screw hole 42 and the second screw hole 45, and then components such as the second rectangular plate 47 can be fixed. At the same time, under the action of the adjusting insertion rod 411, components such as the seat plate 2 can be disassembled, assembled and fixed and the height can be adjusted. The whole disassembly and assembly steps are simple, without the need for professional personnel to operate, and are convenient for maintenance and replacement. At the same time, under the action of the limit adjustment structure 3, the front and rear positions of the seat plate 2 can be adjusted, and then the position of the seat plate 2 can be adjusted according to the actual use requirements, so that the seat plate 2 can be adjusted in a staggered manner. At the same time, under the action of the adjusting backrest structure 5, the angle of the backrest body 54 can be adjusted.

[0044] Reference Figures 4 - 6 Moreover, the limit adjustment structure 3 further includes an auxiliary sliding groove 32 opened on the inner wall of the sliding rail plate 31. The bottom of the outer surface of the first rectangular plate 33 is fixedly connected with a first connecting rod 34. The bottom end of the first connecting rod 34 is fixedly connected with a first round frame 35. The inner wall of the first round frame 35 is rotatably connected with a first rolling wheel 36. One side of the first round frame 35 is fixedly connected with an auxiliary sliding rod 37. The auxiliary sliding rod 37 is slidably arranged on the inner wall of the auxiliary sliding groove 32;

[0045] By setting the first round frame 35 and the first rolling wheel 36, the first rectangular plate 33 can be assisted in guiding in cooperation with the auxiliary sliding rod 37 and the sliding rail plate 31.

[0046] Reference Figure 6 Moreover, the bottom of the outer surface of the first rectangular plate 33 is symmetrically and fixedly connected with second connecting rods 38. The bottom ends of the second connecting rods 38 are fixedly connected with second round frames 39. The two sides between the inner walls of the second round frames 39 are rotatably connected with second rolling wheels 310;

[0047] The second round frame 39 can cooperate with the second rolling wheels 310, and then can assist in supporting and guiding the first rectangular plate 33.

[0048] Reference Figures 4 - 6 Moreover, Z-shaped plates 311 are symmetrically and fixedly connected to both sides of the outer surface of the first rectangular plate 33. The top of the mounting seat 1 is fixedly connected with a partition baffle 312. Limiting auxiliary grooves 313 are symmetrically opened on both sides of the partition baffle 312. One side of the Z-shaped plate 311 is clamped with the inner wall of the limiting auxiliary groove 313. A clamping rod 314 is inserted into the inner wall of the Z-shaped plate 311. A clamping hole 315 is opened on the inner wall of the top of the mounting seat 1. The clamping rod 314 is clamped with the inner wall of the clamping hole 315;

[0049] By setting the partition baffle 312, it can cooperate with the limit auxiliary groove 313, and further cooperate with the Z-shaped plate 311 for auxiliary guiding, so as to maintain the minimum distance between the two seat plates 2, enabling the Z-shaped plate 311 to perform auxiliary limit with the limit auxiliary groove 313.

[0050] Reference Figures 5 - 7 , the disassembly and assembly buffer structure 4 further includes a first circular hole 43 opened on the inner wall of the first rectangular plate 33, a second circular hole 49 opened on the inner wall of the second rectangular plate 47, an auxiliary insertion cylinder 48 fixedly connected to the bottom of the second rectangular plate 47, and an adjustment insertion rod 411 inserted into the inner walls of the first circular hole 43, the second circular hole 49 and the auxiliary insertion cylinder 48. The top end of the adjustment insertion rod 411 is fixedly connected with a third rectangular plate 414;

[0051] By setting the auxiliary insertion cylinder 48, it can cooperate with the first circular hole 43 and the second circular hole 49, enabling the adjustment insertion rod 411 to adjust the height of the seat plate 2.

[0052] Reference Figure 7 , a first screw hole 42 is opened on the inner wall of the circular clamping block 41, a second screw hole 45 is opened on the inner wall of the circular clamping frame 44, and a first threaded clamping rod 46 is threadedly connected to the inner walls of the first screw hole 42 and the second screw hole 45;

[0053] By setting the first threaded clamping rod 46, it can cooperate with the first screw hole 42 and the second screw hole 45 to assist in clamping and fixing the circular clamping frame 44 and the circular clamping block 41.

[0054] Reference Figure 7 and Figure 8 , a third screw hole 410 is opened on the inner wall of the auxiliary insertion cylinder 48, a fourth screw hole 413 is opened on the inner wall of the adjustment insertion rod 411, and a second threaded clamping rod 412 is threadedly connected to the inner walls of the third screw hole 410 and the fourth screw hole 413;

[0055] By setting the second threaded clamping rod 412, it can cooperate with the third screw hole 410 and the fourth screw hole 413, and further assist in fixing the adjustment insertion rod 411.

[0056] Reference Figure 8 , two fixing cylinders 415 are symmetrically and fixedly connected to the top of the outer surface of the third rectangular plate 414. A sliding rod 416 is slidably connected to the inner wall of the fixing cylinder 415. The top end of the sliding rod 416 is fixedly connected to the bottom of the seat plate 2. A return spring 417 is sleeved on the outer surface of the sliding rod 416. The two ends of the return spring 417 are respectively fixedly connected to the bottom of the seat plate 2 and the top of the fixing cylinder 415;

[0057] By setting the fixing cylinder 415 and the sliding rod 416, the sliding rod 416 can slide on the inner wall of the fixing cylinder 415, and further cooperate with the return spring 417 for auxiliary buffering.

[0058] Reference Figure 1 and Figure 9 Figure 9 , the backrest structure 5 further includes an auxiliary groove 51 opened on one side of the seat plate 2. An auxiliary rotating rod 52 is rotatably connected to the inner wall of the auxiliary groove 51, and the outer surface of the auxiliary rotating rod 52 is fixedly connected to the inner wall of the rotating block 53;

[0059] By providing the auxiliary rotating rod 52, it can cooperate with components such as the rotating block 53, and further drive the backrest body 54 to adjust the angle.

[0060] Reference Figure 9 and Figure 10 Figure 10 , one end of the auxiliary rotating rod 52 penetrates through the seat plate 2 and is fixedly connected to an auxiliary circular plate 55. A positioning circular rod 56 is opened on the inner wall of the auxiliary circular plate 55. A plurality of positioning circular holes 57 are opened on one side of the outer surface of the seat plate 2. The plurality of positioning circular holes 57 are arranged at equal intervals along the circumferential direction of the auxiliary rotating rod 52, and the outer surface of the positioning circular rod 56 is clamped with the inner wall of the positioning circular hole 57;

[0061] By providing the positioning circular rod 56 and the positioning circular hole 57, the auxiliary rotating rod 52 can be fixed, and further the backrest body 54 can be assisted in fixing.

[0062] The working principle of the above whole is as follows:

[0063] When in use, insert the round card block 41 into the inner wall of the round card frame 44. At this time, assist in fixing the first threaded card rod 46 with the first screw hole 42 and the second screw hole 45. At this time, the first rectangular plate 33 and the second rectangular plate 47 can be assisted in fixing;

[0064] At this time, insert the adjusting insert rod 411 into the inner walls of the first round hole 43, the second round hole 49 and the auxiliary insertion cylinder 48. After the height of the seat plate 2 is adjusted, at this time, assist in fixing the second threaded card rod 412 with the third screw hole 410 and the fourth screw hole 413;

[0065] At this time, push the seat plate 2, so that the first rolling wheel 36 can slide on the inner wall of the slide rail plate 31, and further drive the auxiliary slide rod 37 to slide on the inner wall of the auxiliary slide groove 32. After sliding to a suitable position, at this time, press the positioning rod 314 so that the positioning rod 314 can be clamped and fixed with the positioning hole 315;

[0066] When sitting on the seat plate 2, at this time, it can drive the sliding rod 416 to slide on the inner wall of the fixed cylinder 415, and further drive the return spring 417 to deform, and further assist in buffering;

[0067] At this time, rotate the backrest body 54 so that the auxiliary rotating rod 52 can rotate on the inner wall of the auxiliary groove 51, and then drive the auxiliary circular plate 55 to rotate. When it is rotated to the appropriate position, press the positioning circular rod 56 at this time so that the positioning circular rod 56 can be stuck into the inner wall of the positioning circular hole 57, thereby completing the fixation.

[0068] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A rapid adjustment and installation structure for a train seat, characterized in that, Including: A mounting base (1), which is fixedly connected to the train floor by means of bolts or other structures; A seat board (2), which is a rectangular plate structure and is internally provided with sponge or a plate support; A limit adjustment structure (3), which is arranged on the top of the mounting base (1) and is used to adjust the front and rear positions of the seat board (2). The limit adjustment structure (3) includes a slide rail plate (31) and a first rectangular plate (33). The number of the slide rail plates (31) is two and they are symmetrically and fixedly connected to the top of the mounting base (1); A disassembly and assembly buffer structure (4), which is arranged between the first rectangular plate (33) and the seat board (2). The disassembly and assembly buffer structure (4) includes round clamping blocks (41). The number of the round clamping blocks (41) is two and they are symmetrically and fixedly connected to the top of the first rectangular plate (33). The outer surface of the round clamping block (41) is clamped with a round clamping frame (44). The top of the outer surface of the round clamping frame (44) is fixedly connected with a second rectangular plate (47); An adjustable backrest structure (5), which is arranged on one side of the seat board (2). The adjustable backrest structure (5) includes a backrest body (54), and the bottom of the backrest body (54) is fixedly connected with a rotating block (53).

2. The rapid adjustment and installation structure of a train seat according to claim 1, characterized in that: The limit adjustment structure (3) further includes an auxiliary chute (32) opened on the inner wall of the slide rail plate (31). The bottom of the outer surface of the first rectangular plate (33) is fixedly connected with a first connecting rod (34). The bottom end of the first connecting rod (34) is fixedly connected with a first round frame (35). The inner wall of the first round frame (35) is rotatably connected with a first rolling wheel (36). One side of the first round frame (35) is fixedly connected with an auxiliary slide rod (37), and the auxiliary slide rod (37) is slidably arranged on the inner wall of the auxiliary chute (32).

3. The rapid adjustment and installation structure of a train seat according to claim 1, characterized in that: The bottom of the outer surface of the first rectangular plate (33) is symmetrically and fixedly connected with second connecting rods (38). The bottom ends of the second connecting rods (38) are fixedly connected with second round frames (39). A second rolling wheel (310) is rotatably connected between the two sides of the inner wall of the second round frame (39).

4. The rapid adjustment and installation structure of a train seat according to claim 1, characterized in that: The two sides of the outer surface of the first rectangular plate (33) are symmetrically and fixedly connected with Z-shaped plates (311). The top of the mounting base (1) is fixedly connected with a partition baffle (312). Limit auxiliary grooves (313) are symmetrically opened on both sides of the partition baffle (312). One side of the Z-shaped plate (311) is clamped with the inner wall of the limit auxiliary groove (313). A clamping rod (314) is inserted into the inner wall of the Z-shaped plate (311). A clamping hole (315) is opened on the inner wall of the top of the mounting base (1), and the clamping rod (314) is clamped with the inner wall of the clamping hole (315).

5. The quick-adjustment installation structure of a train seat according to claim 1, characterized in that: The disassembly and assembly buffer structure (4) further includes a first round hole (43) opened on the inner wall of the first rectangular plate (33), a second round hole (49) opened on the inner wall of the second rectangular plate (47), and an auxiliary insertion cylinder (48) fixedly connected to the bottom of the second rectangular plate (47). An adjustment insertion rod (411) is inserted into the inner walls of the first round hole (43), the second round hole (49), and the auxiliary insertion cylinder (48). The top of the adjustment insertion rod (411) is fixedly connected to a third rectangular plate (414).

6. The quick-adjustment installation structure of a train seat according to claim 1, characterized in that: A first screw hole (42) is opened on the inner wall of the round clamping block (41), a second screw hole (45) is opened on the inner wall of the round clamping frame (44), and a first threaded clamping rod (46) is threadedly connected to the inner walls of the first screw hole (42) and the second screw hole (45).

7. The quick-adjustment installation structure of a train seat according to claim 5, characterized in that: A third screw hole (410) is opened on the inner wall of the auxiliary insertion cylinder (48), a fourth screw hole (413) is opened on the inner wall of the adjustment insertion rod (411), and a second threaded clamping rod (412) is threadedly connected to the inner walls of the third screw hole (410) and the fourth screw hole (413).

8. The quick-adjustment installation structure of a train seat according to claim 5, characterized in that: Two fixing cylinders (415) are symmetrically and fixedly connected to the top of the outer surface of the third rectangular plate (414). A sliding rod (416) is slidably connected to the inner wall of the fixing cylinder (415). The top of the sliding rod (416) is fixedly connected to the bottom of the seat plate (2). A return spring (417) is sleeved on the outer surface of the sliding rod (416). The two ends of the return spring (417) are respectively fixedly connected to the bottom of the seat plate (2) and the top of the fixing cylinder (415).

9. The quick-adjustment installation structure of a train seat according to claim 1, characterized in that: The adjustment backrest structure (5) further includes an auxiliary groove (51) opened on one side of the seat plate (2). An auxiliary rotating rod (52) is rotatably connected to the inner wall of the auxiliary groove (51). The outer surface of the auxiliary rotating rod (52) is fixedly connected to the inner wall of the rotating block (53).

10. The quick-adjustment installation structure of a train seat according to claim 9, characterized in that: One end of the auxiliary rotating rod (52) penetrates through the seat plate (2) and is fixedly connected to an auxiliary round plate (55). A clamping position round rod (56) is opened on the inner wall of the auxiliary round plate (55). A plurality of clamping position round holes (57) are opened on one side of the outer surface of the seat plate (2). The plurality of clamping position round holes (57) are arranged at equal intervals along the circumferential direction of the auxiliary rotating rod (52). The outer surface of the clamping position round rod (56) is clamped with the inner wall of the clamping position round hole (57).

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