A b737-800 simulation seat

Abstract

The utility model discloses a B737-800 simulation seat, including base, the upside of base is equipped with backrest support main part, and the four corners of base lower extreme are provided with sliding block respectively, and the downside of base is placed with arc slide rail respectively, and four groups of sliding blocks are slidably connected with the outer surface of vertically adjacent arc slide rail respectively, still include locking mechanism, locking mechanism: it includes drive plate, limit slip cover, fixed link, adjusting lever and drive assembly, and the sliding slot of limit slip cover and the right side setting of base bottom wall is slidably connected, and the upper end of limit slip cover is provided with fixed link, and the upside of fixed link outer arc surface is provided with adjusting lever, and the right side of base inside is equipped with drive plate, and this B737-800 simulation seat is consistent with B737-800 aircraft pilot seat on appearance, and can satisfy with slide rail on function, can slide back and forth, with locking function, and sliding stroke and angle keep consistent with real aircraft, can realize accurate up and down adjusting movement function.

Description

Technical Field

[0001] This utility model relates to the field of simulation seat technology, specifically a B737-800 simulation seat. Background Technology

[0002] The optimal seating position for pilots is not arbitrary; it is the result of detailed analysis and design, aiming to ensure safe and comfortable aircraft operation. Such a simple matter as the pilot's seating position plays a crucial role in flight safety. Therefore, the "Pre-push-out and pre-start checks" or "Pre-flight checks" sections of checklists for different aircraft types all emphasize seat adjustment. Current training methods primarily rely on: On-site training: While training is conducted directly on actual aircraft, it suffers from high costs (long aircraft occupation time), high risks (misoperation may damage original components), and low efficiency (requiring coordination of aircraft resources); Existing simulated seats: These have low visual fidelity, functional defects, and incomplete control and logic relationships, failing to achieve muscle memory training. Therefore, we propose a B737-800 simulated seat. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a B737-800 simulation seat. The B737-800 simulation seat is consistent with the pilot seat of the B737-800 aircraft in appearance. Functionally, it can meet the requirements of having a sliding rail, being able to slide back and forth, and having a locking function. The sliding stroke and angle are consistent with those of the real aircraft, and it can realize precise up and down adjustment and movement functions, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a B737-800 simulation seat, including a base, a backrest support body on the upper side of the base, sliders at the four corners of the lower end of the base, and arc-shaped slide rails placed on the lower side of the base. The four sets of sliders are slidably connected to the outer surface of the vertically adjacent arc-shaped slide rails, and a locking mechanism is also included. Locking mechanism: It includes a drive plate, a limiting sleeve, a fixing rod, an adjusting rod, and a drive assembly. The limiting sleeve is slidably connected to the sliding groove provided on the right side of the bottom wall of the base. A fixing rod is provided at the upper end of the limiting sleeve. An adjusting rod is provided on the upper side of the outer arc surface of the fixing rod. A drive plate is provided on the right side inside the base. The adjusting rod is located in the drive groove provided on the front side inside the drive plate. The drive assembly is located inside the base. This B737-800 simulation seat is identical in appearance to the pilot seat of the B737-800 aircraft. Functionally, it can meet the requirements of having a sliding rail, being able to slide back and forth, and having a locking function. The sliding stroke and angle are consistent with those of the real aircraft, and it can achieve precise up and down adjustment and movement functions.

[0005] Furthermore, a control switch group is provided at the right end of the backrest support body. The input end of the control switch group is electrically connected to an external power supply, which can regulate the electrical components inside the equipment.

[0006] Furthermore, the locking mechanism also includes a protective cover and a mounting rod. The protective cover is located on the rear side of the bottom wall of the base, and the mounting rod is rotatably connected to the upper side of the rear wall of the protective cover. A drive plate is provided on the rear side of the outer arc surface of the mounting rod, which can drive the drive plate to rotate.

[0007] Furthermore, the drive assembly also includes a connecting rod, a front-to-back adjustment handle, a worm gear, and a worm wheel. The connecting rod is rotatably connected to the upper side inside the protective cover. A worm wheel is provided in the middle of the outer arc surface of the connecting rod. A worm gear is provided on the front side of the outer arc surface of the mounting rod. The worm gear meshes with the worm wheel. The right end of the connecting rod is rotatably connected to a connecting groove provided on the rear side of the right wall of the base. A front-to-back adjustment handle is provided on the right side of the outer arc surface of the connecting rod. The front-to-back adjustment handle is located on the lower side of the right end of the backrest support body and can drive the mounting rod to rotate.

[0008] Furthermore, a slider fixing seat is provided on the lower side inside the backrest support body, and lifting slide rails are provided on the left and right sides inside the base. Lifting sliders are slidably connected to the upper side of the outer surface of the two sets of lifting slide rails. The front ends of the two sets of lifting sliders are fixedly connected to the rear ends of the slider fixing seat. An electric push rod is provided in the middle of the bottom wall of the base. The upper end of the telescopic end of the electric push rod is fixedly connected to the lower end of the backrest support body. The input end of the electric push rod is electrically connected to the output end of the control switch group, which can adjust the height of the backrest support body.

[0009] Furthermore, a fixing plate is provided on the upper side inside the backrest support body. Electric push rods are provided on the left and right sides of the upper end of the fixing plate. The upper sides of the extension ends of the two sets of electric push rods are respectively located in the clearance grooves opened on the left and right sides of the top wall of the backrest support body. The upper ends of the extension ends of the electric push rods are fixedly connected to the lower end of the headrest. The input end of the electric push rod is electrically connected to the output end of the control switch group. The headrest can reduce the operator's neck fatigue.

[0010] Furthermore, a pivot is rotatably connected to the upper side of the backrest support body. Armrests are respectively provided on the left and right sides of the outer arc surface of the pivot. The two sets of armrests are located in the middle of the left and right ends of the backrest support body. A chuck is provided in the middle of the outer arc surface of the pivot. A slot is provided on the left end of the chuck. A guide slide is provided inside the backrest support body. An adjustment plate is slidably connected to the middle of the outer arc surface of the guide slide. A plug is provided on the upper side of the right end of the adjustment plate. The plug is installed in conjunction with the slot and can be used to support the user's arm.

[0011] Furthermore, a push rod is connected to the lower right side of the adjustment plate by a fastening bolt. The push rod is slidably connected to a sliding hole in the middle of the right side of the backrest support body. A button is provided at the right end of the push rod, located between the right end of the backrest support body and the left end of the right armrest. A spring is provided between the right end of the adjustment plate and the right wall of the backrest support body, and the spring is sleeved on the outside of the left side. A rear cover is connected to the rear end of the backrest support body by screws, which can drive the insertion rod to move and reset.

[0012] Furthermore, the front end of the backrest support body is provided with a seat cushion, which can slowly deform according to human body temperature and pressure to provide personalized support and reduce pressure points.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This B737-800 simulation seat has the following advantages: The B737-800 simulator seat is identical in appearance to the pilot's seat on the B737-800 aircraft. Functionally, it features a sliding rail, forward and backward sliding capability, and a locking function. The sliding range and angle are consistent with those of the real aircraft, enabling precise vertical adjustment and movement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the right side of the present invention; Figure 3 This is a schematic diagram of the front sectional structure of the present invention; Figure 4 This is a schematic diagram of the upper sectional structure of this utility model; Figure 5 This is a schematic diagram of the headrest structure of this utility model; Figure 6 This is a schematic diagram of the internal structure of the backrest support body of this utility model; Figure 7 This is a schematic diagram of the locking mechanism of this utility model; Figure 8 This is a schematic diagram of the internal structure of the protective cover of this utility model.

[0015] In the diagram: 1. Base, 2. Backrest support body, 3. Control switch group, 4. Slider fixing seat, 5. Lifting slide rail, 6. Lifting slider, 7. Arc slide rail, 8. Slider, 9. Locking mechanism, 91. Protective cover, 92. Mounting rod, 93. Drive plate, 94. Limiting sleeve, 95. Fixing rod, 96. Adjusting rod, 97. Drive assembly, 971. Connecting rod, 972. Front and rear adjustment handle, 973. Worm gear, 974. Worm wheel, 10. Rotary shaft, 11. Armrest, 12. Chuck, 13. Guide slide column, 14. Adjusting plate, 15. Push rod, 16. Button, 17. Insert rod, 18. Spring, 19. Electric push rod one, 20. Seat cushion, 21. Back cover, 22. Fixing plate, 23. Electric push rod two, 24. Headrest. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0017] Please see Figures 1-8 This embodiment provides a technical solution: a B737-800 simulation seat, including a base 1, a backrest support body 2 on the upper side of the base 1, sliders 8 at the four corners of the lower end of the base 1, and arc-shaped slide rails 7 placed on the lower side of the base 1. The four sets of sliders 8 are slidably connected to the outer surface of the vertically adjacent arc-shaped slide rails 7, and also includes a locking mechanism 9. Locking mechanism 9: It includes a drive plate 93, a limiting sleeve 94, a fixing rod 95, an adjusting rod 96, and a drive assembly 97. The limiting sleeve 94 is slidably connected to a groove provided on the right side of the bottom wall of the base 1. A fixing rod 95 is provided at the upper end of the limiting sleeve 94. An adjusting rod 96 is provided on the upper side of the outer arc surface of the fixing rod 95. The drive plate 93 is provided on the right side inside the base 1. The adjusting rod 96 is located in the drive groove provided on the front side inside the drive plate 93. The drive assembly 97 is located inside the base 1. The mounting rod 92 drives the drive plate 93 to rotate. At this time, the adjusting rod 96 slides inside the drive groove and rotates relative to the drive groove, so that the drive plate 93 is moved by the adjusting rod. 96 drives the fixing rod 95 to move downwards, which in turn drives the limiting sleeve 94 to move downwards. Since the limiting sleeve 94 is located on the upper side of the right rear limiting sleeve 94, the distance between the lower end of the limiting sleeve 94 and the upper end of the corresponding arc-shaped slide rail 7 will gradually decrease, eventually making the limiting sleeve 94 contact the upper end of the corresponding arc-shaped slide rail 7, thereby locking the base 1. This B737-800 simulation seat is identical in appearance to the pilot seat of the B737-800 aircraft. Functionally, it can meet the requirements of having a slide rail, being able to slide forward and backward, and having a locking function. The sliding stroke and angle are consistent with those of the real aircraft, and it can achieve precise up and down adjustment and movement functions.

[0018] Among them, the right end of the backrest support body 2 is equipped with a control switch group 3. The input end of the control switch group 3 is electrically connected to an external power supply, which can regulate the electrical components inside the equipment.

[0019] The locking mechanism 9 also includes a protective cover 91 and a mounting rod 92. The protective cover 91 is located on the rear side of the bottom wall of the base 1. The mounting rod 92 is rotatably connected to the upper side of the rear wall of the protective cover 91. A drive plate 93 is provided on the rear side of the outer arc surface of the mounting rod 92. The worm 973 and the worm wheel 974 are both located inside the sealed protective cover 91. The sealed protective cover 91 can prevent external debris from adhering to the outside of the worm 973 and the worm wheel 974.

[0020] The drive assembly 97 includes a connecting rod 971, a front-to-back adjustment handle 972, a worm gear 973, and a worm wheel 974. The connecting rod 971 is rotatably connected to the upper side inside the protective cover 91. The worm wheel 974 is located in the middle of the outer arc surface of the connecting rod 971. The worm gear 973 is located on the front side of the outer arc surface of the mounting rod 92. The worm gear 973 is meshed with the worm wheel 974. The right end of the connecting rod 971 is rotatably connected to the connecting groove located on the rear side of the right wall of the base 1. The front-to-back adjustment handle 972 is located on the right side of the outer arc surface of the connecting rod 971. The front-to-back adjustment handle 972 is located on the lower side of the right end of the backrest support body 2. When the operator rotates the front-to-back adjustment handle 972, the front-to-back adjustment handle 972 will drive the worm gear 973 to rotate through the connecting rod 971 during the rotation. The worm gear 973 will drive the worm wheel 974 to rotate through the meshing connection during the rotation. The worm wheel 974 will drive the drive plate 93 to rotate through the mounting rod 92.

[0021] The backrest support body 2 has a slider fixing seat 4 on its lower side inside. The left and right sides of the base 1 are respectively provided with lifting slide rails 5. Lifting sliders 6 are slidably connected to the upper side of the outer surface of the two sets of lifting slide rails 5. The front ends of the two sets of lifting sliders 6 are fixedly connected to the rear ends of the slider fixing seat 4. An electric push rod 19 is provided in the middle of the bottom wall of the base 1. The upper end of the telescopic end of the electric push rod 19 is fixedly connected to the lower end of the backrest support body 2. The input end of the electric push rod 19 is electrically connected to the output end of the control switch group 3. By controlling the control switch group 3, the electric push rod 19 starts to run and the telescopic end of the electric push rod 19 extends, so that the backrest support body 2 moves along the lifting slide rails 5 through the lifting sliders 6, thereby adjusting the height of the backrest support body 2.

[0022] The backrest support body 2 has a fixed plate 22 on its upper side. The upper left and right sides of the fixed plate 22 are respectively equipped with electric push rods 23. The upper sides of the telescopic ends of the two sets of electric push rods 23 are located in the clearance grooves opened on the left and right sides of the top wall of the backrest support body 2. The upper ends of the telescopic ends of the electric push rods 23 are fixedly connected to the lower end of the headrest 24. The input end of the electric push rods 23 is electrically connected to the output end of the control switch group 3. By controlling the control switch group 3, the electric push rods 23 start to run and the telescopic ends of the electric push rods 23 extend, thereby adjusting the height of the headrest 24.

[0023] The backrest support body 2 has a rotating shaft 10 rotatably connected to its upper side. Armrests 11 are respectively provided on the left and right sides of the outer arc surface of the rotating shaft 10. The two sets of armrests 11 are located in the middle of the left and right ends of the backrest support body 2. A chuck 12 is provided in the middle of the outer arc surface of the rotating shaft 10. A slot is provided on the left end of the chuck 12. A guide slide column 13 is provided inside the backrest support body 2. An adjustment plate 14 is slidably connected to the middle of the outer arc surface of the guide slide column 13. A plug rod 17 is provided on the upper side of the right end of the adjustment plate 14. The plug rod 17 is installed in conjunction with the slot. When the operator rotates the right armrest 11 with his right hand, the right armrest 11 will drive the left armrest 11 to rotate through the rotating shaft 10 during the rotation, thereby adjusting the position of the armrest 11.

[0024] The adjustment plate 14 has a push rod 15 connected to its lower right side by a fastening bolt. The push rod 15 is slidably connected to a sliding hole in the middle of the right side of the backrest support body 2. A button 16 is located on the right side of the push rod 15, between the right side of the backrest support body 2 and the left side of the right armrest 11. A spring 18 is installed between the right side of the adjustment plate 14 and the right wall of the backrest support body 2, and the spring 18 is sleeved on the outside of the left side. A rear cover 21 is connected to the rear end of the backrest support body 2 by screws. When the armrest 11 is adjusted to a suitable angle, the operator's left hand is released first. Press button 16. At this time, the tension generated by the contraction of spring 18 will drive the insertion rod 17 to move to the right and reset through the adjustment plate 14. If the insertion rod 17 is aligned with one of the slots provided on the left end of the chuck 12, the insertion rod 17 will be directly inserted into the slot, thereby fixing the armrest 11. When the insertion rod 17 is not aligned with one of the slots provided on the left end of the chuck 12, the operator's right hand will slowly adjust the position of the right armrest 11 until the insertion rod 17 is inserted into one of the slots provided on the left end of the chuck 12, thereby fixing the armrest 11.

[0025] Among them, the front end of the backrest support body 2 is provided with a seat cushion 20, which is made of memory foam. Memory foam can slowly deform according to human body temperature and pressure, providing personalized support and reducing pressure points.

[0026] The working principle of the B737-800 simulation seat provided by this utility model is as follows: Before use, the arc-shaped slide rail 7 is first installed on the platform floor using eight M6×12 screws. Then, the base 1 is connected to the slider 8 using four M6×8 screws, thereby fixing the seat 1 and its internal components. Next, the base 1 is pushed, and it moves along the arc-shaped slide rail 7 via the slider 8. When the base 1 reaches the desired position, the operator rotates the front-to-back adjustment handle 972. During rotation, the front-to-back adjustment handle 972 drives the worm gear 973 to rotate via the connecting rod 971. During rotation, the worm gear 973 drives the worm wheel 974 to rotate via a meshing connection. Both the worm gear 973 and the worm wheel 974 are located at... Inside the sealed protective cover 91, external debris is prevented from adhering to the outside of the worm gear 973 and worm wheel 974. The worm wheel 974 drives the drive plate 93 to rotate via the mounting rod 92. At this time, the adjusting rod 96 slides inside the drive groove and rotates relative to the drive groove, thereby causing the drive plate 93 to drive the fixed rod 95 downward via the adjusting rod 96. The fixed rod 95 drives the limiting sleeve 94 downward. Since the limiting sleeve 94 is located above the right rear limiting sleeve 94, the distance between the lower end of the limiting sleeve 94 and the upper end of the corresponding arc-shaped slide rail 7 will gradually decrease. When the limiting sleeve 94 contacts the upper end of the corresponding arc-shaped slide rail 7, the front and rear adjusting handle 972 can no longer rotate, and the operator can then... Gently push the base 1 forward to check if it is locked. If the base 1 is found to be loose, rotate the front-to-back adjustment handle 972 again until it can no longer be rotated, thus locking the base 1. Then, by controlling the switch group 3, the electric push rod 19 starts to operate. The telescopic end of the electric push rod 19 extends, causing the backrest support body 2 to move along the lifting slide rail 5 via the lifting slider 6, thereby adjusting the height of the backrest support body 2. During the movement of the backrest support body 2, the lifting slide rail 5 provides a guiding support, thereby reducing the radial force exerted by the backrest support body 2 on the electric push rod 19 and preventing the telescopic end of the electric push rod 19 from bending and deforming. Supported by the sliding rail 5, the electric push rod 19 is only subjected to axial forces from above and below. The operator can adjust the height of the backrest support body 2 according to their actual needs. Then, the operator sits on the upper part of the seat cushion 20, and then presses the button 16 with their left hand. The button 16 will drive the push rod 15 to move to the left. The push rod 15 will drive the insertion rod 17 to move to the left through the adjusting plate 14. The spring 18 extends, thereby separating the insertion rod 17 from the slot. Then, the operator rotates the right armrest 11 with their right hand. During the rotation of the right armrest 11, it will drive the left armrest 11 to rotate through the pivot 10, thereby adjusting the position of the armrest 11. When the armrest 11 is adjusted to the appropriate angle, the operator releases the button 16 with their left hand. At this time,The tension generated by the contraction of spring 18 will drive the insertion rod 17 to move to the right and reset via the adjusting plate 14. If the insertion rod 17 is aligned with one of the slots on the left end of the chuck 12, the insertion rod 17 will be directly inserted into the slot, thus fixing the armrest 11. If the insertion rod 17 is not aligned with one of the slots on the left end of the chuck 12, the operator's right hand will slowly adjust the position of the right armrest 11 until the insertion rod 17 is inserted into one of the slots on the left end of the chuck 12, thus fixing the armrest 11. The operator can then remove the screws to open the back cover 21, and then remove the fastening bolts to adjust the plate. After separating from push rod 15, spring 18 is replaced to ensure its working effect. Then, through the control of switch group 3, electric push rod 23 starts operating. The telescopic end of electric push rod 23 extends, thereby adjusting the height of headgear 24. During the movement of headgear 24, the clearance groove provides a guiding support, reducing the radial force applied by headgear 24 to electric push rod 23 and preventing bending deformation of the telescopic end of electric push rod 23. The radial force of electric push rod 23 is borne by the sliding clearance groove, and electric push rod 23 is only subjected to vertical axial force. The operator can adjust the height of headrest 24 according to their needs.

[0027] It is worth noting that the electric actuator 19 and electric actuator 23 disclosed in the above embodiments can be dytp2000-550 / 50-x, and the control switch group 3 is provided with control buttons corresponding to the electric actuator 19 and electric actuator 23 for controlling their switches.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A B737-800 simulation chair, comprising a base (1), a backrest support body (2) on the upper side of the base (1), sliders (8) respectively provided at the four corners of the lower end of the base (1), and arc-shaped slide rails (7) respectively placed on the lower side of the base (1), wherein the four sets of sliders (8) are slidably connected to the outer surface of the vertically adjacent arc-shaped slide rails (7), characterized in that: It also includes a locking mechanism (9); Locking mechanism (9): It includes a drive plate (93), a limiting sleeve (94), a fixing rod (95), an adjusting rod (96), and a drive assembly (97). The limiting sleeve (94) is slidably connected to the sliding groove provided on the right side of the bottom wall of the base (1). The upper end of the limiting sleeve (94) is provided with a fixing rod (95). The upper side of the outer arc surface of the fixing rod (95) is provided with an adjusting rod (96). The right side of the base (1) is provided with a drive plate (93). The adjusting rod (96) is located in the drive groove provided on the front side of the drive plate (93). The drive assembly (97) is located inside the base (1).

2. The B737-800 simulation seat according to claim 1, characterized in that: The right end of the backrest support body (2) is provided with a control switch group (3), and the input end of the control switch group (3) is electrically connected to an external power source.

3. The B737-800 simulation seat according to claim 1, characterized in that: The locking mechanism (9) also includes a protective cover (91) and a mounting rod (92). The protective cover (91) is located on the rear side of the bottom wall of the base (1). The mounting rod (92) is rotatably connected to the upper side of the rear wall of the protective cover (91). A drive plate (93) is provided on the rear side of the outer arc surface of the mounting rod (92).

4. A B737-800 simulation seat according to claim 3, characterized in that: The drive assembly (97) also includes a connecting rod (971), a front and rear adjustment handle (972), a worm (973), and a worm wheel (974). The connecting rod (971) is rotatably connected to the upper side inside the protective cover (91). The worm wheel (974) is provided in the middle of the outer arc surface of the connecting rod (971). The worm (973) is provided on the front side of the outer arc surface of the mounting rod (92). The worm (973) is meshed with the worm wheel (974). The right end of the connecting rod (971) is rotatably connected to the connecting groove provided on the rear side of the right wall of the base (1). The front and rear adjustment handle (972) is provided on the right side of the outer arc surface of the connecting rod (971). The front and rear adjustment handle (972) is located on the lower side of the right end of the backrest support body (2).

5. A B737-800 simulation seat according to claim 2, characterized in that: The lower side of the backrest support body (2) is provided with a slider fixing seat (4), and the left and right sides of the base (1) are respectively provided with lifting slide rails (5). The upper side of the outer surface of the two sets of lifting slide rails (5) is slidably connected with lifting sliders (6). The front end of the two sets of lifting sliders (6) is fixedly connected to the rear end of the slider fixing seat (4). The middle part of the bottom wall of the base (1) is provided with an electric push rod (19). The upper end of the extension end of the electric push rod (19) is fixedly connected to the lower end of the backrest support body (2). The input end of the electric push rod (19) is electrically connected to the output end of the control switch group (3).

6. A B737-800 simulation seat according to claim 2, characterized in that: A fixing plate (22) is provided on the upper side inside the backrest support body (2). Electric push rods (23) are provided on the left and right sides of the upper end of the fixing plate (22). The upper sides of the telescopic ends of the two sets of electric push rods (23) are respectively located in the clearance grooves opened on the left and right sides of the top wall of the backrest support body (2). The upper ends of the telescopic ends of the electric push rods (23) are fixedly connected to the lower end of the headrest (24). The input end of the electric push rods (23) is electrically connected to the output end of the control switch group (3).

7. A B737-800 simulation seat according to claim 1, characterized in that: The upper side of the backrest support body (2) is rotatably connected to a rotating shaft (10). Armrests (11) are respectively provided on the left and right sides of the outer arc surface of the rotating shaft (10). The two sets of armrests (11) are respectively located in the middle of the left and right ends of the backrest support body (2). A chuck (12) is provided in the middle of the outer arc surface of the rotating shaft (10). A slot is provided on the left end of the chuck (12). A guide slide (13) is provided inside the backrest support body (2). An adjustment plate (14) is slidably connected in the middle of the outer arc surface of the guide slide (13). A plug rod (17) is provided on the upper side of the right end of the adjustment plate (14). The plug rod (17) is installed in conjunction with the slot.

8. A B737-800 simulation seat according to claim 7, characterized in that: The lower right side of the adjustment plate (14) is connected to a push rod (15) by a fastening bolt. The push rod (15) is slidably connected to the sliding hole in the middle of the right side of the backrest support body (2). A button (16) is provided on the right side of the push rod (15). The button (16) is located between the right side of the backrest support body (2) and the left side of the right armrest (11). A spring (18) is provided between the right side of the adjustment plate (14) and the right wall of the backrest support body (2). The spring (18) is sleeved on the outside of the left side. The rear end of the backrest support body (2) is connected to a back cover (21) by screws.

9. A B737-800 simulation seat according to claim 1, characterized in that: The front end of the backrest support body (2) is provided with a seat cushion (20).

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