Ejection seat angle adjusting device and method

Abstract

The invention provides an ejection seat angle adjusting device and method, and belongs to the field of ejection seats. Comprising two symmetrically-distributed mounting seats, a mounting plate is fixedly connected between the two mounting seats, a rotating shaft is fixedly connected to the right sides of the mounting seats, a supporting seat is rotatably connected to the outer surface of the rotating shaft, adjusting assemblies are arranged at the front end and the rear end of the rotating shaft, and each adjusting assembly comprises a locking sleeve in threaded connection with the outer surface of the rotating shaft; a cavity is formed in the inner side of the rotating shaft in an embedded mode, and a push rod is slidably connected to the inner surface of the cavity. By arranging the first supporting rod, the second back cushion, the guide seat and other assemblies, the second back cushion can be adjusted to be at different angles, the comfort of the ejection seat in the using process can be effectively improved, meanwhile, when the seat is ejected, the second back cushion can be tightly attached to the back of a pilot, and therefore the spine of a patient can be buffered and protected; and the safety protection effect of the ejection seat can be further improved.

Description

Technical Field

[0001] The present invention relates to the field of ejection seats, and more particularly to an ejection seat angle adjustment device and method. Background Art

[0002] An ejection seat is a seat used by pilots. When an airplane is in trouble, the pilot is ejected from the cabin by a power device under the seat, and then a parachute is deployed to allow the pilot to land safely. As an important escape device for pilots in emergency situations, the ejection seat not only reflects the innovation and progress of human beings in aviation life-saving technology, but is also an indispensable device to protect the life safety of pilots.

[0003] During the flight of an aircraft, the ejection seat not only needs to fix and support the pilot's body, but also when an emergency occurs, the ejection seat needs to eject the pilot to the outside of the cabin in a very short time. During the ejection process, the flight seat will eject the pilot to the outside of the cabin together with the pilot. Therefore, the ejection seat must not only be comfortable, but also provide good protection for the pilot's body.

[0004] During use of the existing flight seats, in order to meet the needs of pilots of different body shapes, the angle of the ejection seat needs to be adjusted so that the pilot can achieve a better flying state. In an emergency, when the pilot needs to eject from the outside of the cabin, the pilot's body will be subjected to a large overload, so the pilot's waist and back will be subjected to a large pressure. Therefore, the position of the cushion needs to be adjusted so that the cushion can effectively protect the pilot's waist and back. However, due to the certain physiological curve of the human spine, the existing ejection seat backrest cannot keep a close fit with the pilot's waist and back. During the ejection process, the pilot's waist and back are at risk of being injured. Therefore, the safety of the ejection seat needs to be further improved. Summary of the invention

[0005] In view of the problem that the ejection seat angle adjustment device in the prior art cannot flexibly adjust the position of the seat back and the angle of the cushion, an object of the present invention is to provide an ejection seat angle adjustment device and method.

[0006] To solve the above problems, the present invention adopts the following technical solutions:

[0007] An ejection seat angle adjustment device comprises two groups of symmetrically distributed mounting seats, a mounting plate is fixedly connected between the two groups of mounting seats, a rotating shaft is fixedly connected to the right side of the mounting seat, a supporting seat is rotatably connected to the outer surface of the rotating shaft, and adjustment components are arranged at both the front and rear ends of the rotating shaft;

[0008] The adjustment assembly comprises a locking sleeve threadedly connected to the outer surface of the rotating shaft, a cavity is embedded in the inner side of the rotating shaft, a push rod is slidably connected to the inner surface of the cavity, the push rod is rotatably connected to the locking sleeve, and the push rod is conical at one end away from the locking sleeve;

[0009] A slot is provided on the inner side of the support seat, the slot is communicated with the inside of the cavity, a positioning rod is slidably connected to the inner side of the slot, the positioning rod is slidably connected to the inner side of the slot, and the adjustment component is used to adjust the angle between the mounting seat and the support seat.

[0010] Optionally, the number of the slots is several groups and they are distributed in a ring array, the positioning rod is in sliding contact with the outer surface of the push rod, and the outer surface of the locking sleeve is provided with evenly distributed anti-slip grooves.

[0011] Optionally, a slide rail is fixedly connected to the outer surface of the upper end of the mounting plate, a movable seat is slidably connected to the outer surface of the sliding outer surface, a seat cushion is fixedly connected to the outer surface of the upper end of the movable seat, a strap is fixedly connected to the left end of the seat cushion, the number of the support seats is two groups and they are symmetrically distributed, a pallet is fixedly connected between the two groups of support seats, a guide rod is fixedly connected to the outer surface of the upper end of the pallet, the number of the guide rods is two groups and they are symmetrically distributed, a slide is slidably connected to the outer surface of the guide rod, a slide is provided on the outer surface of the support seat, a slide groove is provided, and the slide is slidably connected to the support seat via the slide groove.

[0012] Optionally, a buffer assembly is provided on the upper side of the slide, and the buffer assembly includes a spring 1 fixedly connected to the outer surface of the upper end of the slide, the spring 1 is located on the outer side of the guide rod, the outer surface of the guide rod is slidably connected to a buffer seat, the outer surface of the buffer seat is fixedly connected to a cushion 1, the outer surface of the lower end of the buffer seat is embedded with a buffer groove, and the upper end of the spring 1 is fixedly connected to the inner surface of the buffer groove.

[0013] Optionally, a locking assembly is provided on the outer side of the slide seat, and the locking assembly includes a baffle fixedly connected to the slide seat, the number of the baffles is two groups and they are symmetrically distributed, a guide groove is provided on the outer surface of the baffle, a moving rod is slidably connected to the inner side of the guide groove, and a locking block is fixedly connected to the outer surface of the moving rod.

[0014] Optionally, a connecting plate is fixedly connected to the outer surface of the support seat, and a clamping strip is fixedly connected to the end of the connecting plate away from the support seat. The lower end of the clamping strip is fixedly connected to the support plate, and the outer surface of the clamping strip is serrated. The locking block is in engagement with the clamping strip, and a spring 2 is fixedly connected to the outer surface of the locking block, and the end of the spring 2 away from the locking block is fixedly connected to the sliding seat.

[0015] Optionally, a traction rope is fixedly connected to the outer surface of the locking block, a top rod is fixedly connected between the two groups of baffles, the traction rope extends through the guide face of the top rod, the lower end of the traction rope is fixedly connected to a pull rod, the outer surface of the first cushion is fixedly connected to a strap 2, the outer surface of the upper end of the sliding seat is fixedly connected to a fixed seat, the outer surface of the upper end of the fixed seat is fixedly connected to a guide seat, and the guide seat is slidably connected to the guide rod.

[0016] Optionally, a slot is embedded in the inner side of the guide seat, a core shaft is fixedly connected to the inner surface of the slot, an ear seat is rotatably connected to the outer surface of the core shaft, a cushion 2 is fixedly connected to the outer surface of the left end of the ear seat, a pillow is fixedly connected to the outer surface of the left end of the cushion 2, and the cushion 2 is located on the upper side of the cushion 1.

[0017] Optionally, an ear plate is fixedly connected to the outer surface of the right end of the second cushion, a pin shaft 1 is fixedly connected to the outer surface of the ear plate, a support rod 1 is rotatably connected to the outer surface of the pin shaft 1, a storage groove is provided on the outer surface of a lower end of the support rod, a pin shaft 2 is fixedly connected to the inner surface of the storage groove, a support rod 2 is rotatably connected to the outer surface of the pin shaft 2, a lower end of the support rod is engaged with the outer surface of the clamping strip, the lower end of the support rod 2 is in contact with the outer surface of the second cushion, and the pin shaft 1 and the pin shaft 2 are both damping shafts.

[0018] A method for adjusting an ejection seat angle adjustment device comprises the following steps:

[0019] S1: Disconnect the positioning rod from the card slot and rotate the support seat with the rotating shaft as the fulcrum to adjust the overall angle of the ejection seat backrest;

[0020] S2: The support seat and the rotating shaft are engaged and limited by the positioning rod and the slot, so that the support seat and the mounting seat are adjusted to different angles;

[0021] S3: driving the cushion 1 and the cushion 2 to slide along the outer surface of the guide rod through the slide seat, so as to flexibly adjust the height of the cushion 1 and the cushion 2;

[0022] S4: The slide seat is locked and fixed by cooperating with the clamping strip and the locking block, so that the first cushion and the second cushion are fixed and limited by the slide seat and the buffer seat, so that the positions of the first cushion and the second cushion are kept stable;

[0023] S5: By snapping the lower end of the support rod into different positions of the clip bar, the back cushion 2 can be adjusted to different angles, effectively improving the comfort of the ejection seat during use.

[0024] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0025] In the above scheme, by providing components such as support rod 1, cushion 2, and guide seat, and by adjusting cushion 2 to different angles, the comfort of the ejection seat during use can be effectively improved. At the same time, when the seat is ejected, cushion 2 can maintain a close fit with the pilot's back, thereby providing cushioning protection for the patient's spine, thereby further improving the safety protection effect of the ejection seat.

[0026] By providing components such as the cushion one, the slide seat and the guide rod, the position of the cushion one can be flexibly adjusted so that the ejection seat can adapt to the physiological curve of the pilot's lumbar spine and keep the cushion one in close fit with the pilot's waist and back, thereby ensuring the comfort of the ejection seat while also meeting the needs of different users.

[0027] By providing components such as a buffer seat and a spring, the cushion one can effectively buffer and filter the bumps through the spring one, thereby improving the comfort of the cushion one to a certain extent. At the same time, during the ejection process of the seat, the cushion one's buffering and shock absorption can provide a certain protective effect on the user's waist, thereby further improving the safety of the ejection seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0029] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0030] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0031] Figure 3 It is a top view of the overall structure of the present invention;

[0032] Figure 4 For the present invention Figure 3 Middle AA section view;

[0033] Figure 5 For the present invention Figure 4 Middle BB section view;

[0034] Figure 6 For the present invention Figure 3 Middle CC section view;

[0035] Figure 7 For the present invention Figure 4 The enlarged schematic diagram at D in the middle;

[0036] Figure 8For the present invention Figure 4 The enlarged schematic diagram at E in the middle;

[0037] Fig. 9 For the present invention Figure 5 Enlarged schematic diagram at F in the middle.

[0038] [Reference Signs]

[0039] 1. Mounting seat; 2. Seat cushion; 3. Mounting plate; 4. Moving seat; 5. Strap 1; 6. Support seat; 7. Cushion 1; 8. Strap 2; 9. Cushion 2; 10. Pillow; 11. Moving rod; 12. Slide rail; 13. Rotating shaft; 14. Support plate; 15. Clip strip; 16. Connecting plate; 17. Guide rod; 18. Slide seat; 19. Buffer seat; 20. Guide seat; 21. Slide groove; 22. Baffle; 23. Spring 1; 24 , locking block; 25, buffer groove; 26, ear plate; 27, pin shaft one; 28, support rod one; 29, storage groove; 30, pin shaft two; 31, support rod two; 32, ear seat; 33, core shaft; 34, notch; 35, guide groove; 36, spring two; 37, push rod; 38, traction rope; 39, pull rod; 40, fixed seat; 41, slot; 42, cavity; 43, positioning rod; 44, push rod; 45, locking sleeve.

[0040] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0041] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0042] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0043] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0044] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0045] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0046] like Figures 1 to 9 As shown, an embodiment of the present invention provides an ejection seat angle adjustment device, comprising two groups of symmetrically distributed mounting seats 1, a mounting plate 3 is fixedly connected between the two groups of mounting seats 1, a rotating shaft 13 is fixedly connected to the right side of the mounting seat 1, a support seat 6 is rotatably connected to the outer surface of the rotating shaft 13, and adjustment components are arranged at both the front and rear ends of the rotating shaft 13;

[0047] The adjustment assembly includes a locking sleeve 45 threadedly connected to the outer surface of the rotating shaft 13, a cavity 42 is embedded in the inner side of the rotating shaft 13, a push rod 44 is slidably connected to the inner surface of the cavity 42, the push rod 44 is rotatably connected to the locking sleeve 45, and the push rod 44 is conical at one end away from the locking sleeve 45;

[0048] A slot 41 is provided on the inner side of the support seat 6 , and the slot 41 is communicated with the inside of the cavity 42 . A positioning rod 43 is slidably connected to the inner side of the slot 41 , and the positioning rod 43 is slidably connected to the inner side of the slot 41 . The adjustment component is used to adjust the angle between the mounting seat 1 and the support seat 6 .

[0049] The number of the locking grooves 41 is several groups and they are distributed in a ring array. The positioning rod 43 is in sliding contact with the outer surface of the push rod 44 . The outer surface of the locking sleeve 45 is provided with uniformly distributed anti-slip grooves 21 .

[0050] By adopting the above technical solution, when adjusting the angle between the mounting seat 1 and the supporting seat 6, the operator first turns the locking sleeve 45 clockwise to move the locking sleeve 45 to the side away from the rotating shaft 13 and disengage the rotating shaft 13, and then the locking sleeve 45 will drive the push rod 44 to move outward along the inside of the cavity 42. At this time, the positioning rod 43 will slide from the inside of the slot 41 to the inside of the cavity 42 under the action of gravity, so that the positioning rod 43 is disengaged from the slot 41, and then the operator rotates the supporting seat 6 with the rotating shaft 13 as the fulcrum. After the supporting seat 6 rotates a certain angle, the operator rotates the locking sleeve 45 counterclockwise, so that the locking sleeve 45 is quickly clamped at both ends of the rotating shaft 13. During the rotation process, the locking sleeve 45 will drive the push rod 44 to slide into the inside of the cavity 42, and one end of the push rod 44 is conical. The shape will contact the outer surface of the positioning rod 43, and the positioning rod 43 slides into the slot 41 under the squeezing action of the push rod 44, so that the positioning rod 43 cooperates with the slot 41 to engage and limit the support seat 6 and the rotating shaft 13. The number of the slots 41 is several groups and is distributed in a ring array, so that the support seat 6 and the mounting seat 1 can be adjusted to different angles, so that the angle between the support seat 6 and the mounting seat 1 remains stable, and the probability of accidental flipping of the support seat 6 is reduced. The outer surface of the locking sleeve 45 is provided with an anti-slip groove 21, which can effectively increase the friction of its surface, thereby further improving the angle adjustment stability. By setting the adjustment component, the angle between the support seat 6 and the mounting seat 1 can be effectively adjusted, thereby effectively improving the convenience of seat angle adjustment.

[0051] like Figure 1 , Figure 2 and Figure 4 As shown, the upper outer surface of the mounting plate 3 is fixedly connected with a slide rail 12, the sliding outer surface is slidably connected with a movable seat 4, the upper outer surface of the movable seat 4 is fixedly connected with a seat cushion 2, the left end of the seat cushion 2 is fixedly connected with a strap 5, and the number of the support seats 6 is two groups and they are symmetrically distributed.

[0052] A support plate 14 is fixedly connected between the two groups of support seats 6, and a guide rod 17 is fixedly connected to the outer surface of the upper end of the support plate 14. The number of the guide rods 17 is two groups and they are symmetrically distributed. A slide seat 18 is slidably connected to the outer surface of the guide rod 17. A slide groove 21 is provided on the outer surface of the support seat 6, and the slide seat 18 is slidably connected to the support seat 6 through the slide groove 21.

[0053] By adopting the above technical scheme, the mounting plate 3 is located between the two groups of mounting seats 1 to fix the mounting seats 1, and the mounting plate 3 supports the moving seat 4 in a sliding manner through the slide rail 12. The slide rail 12 is made of an electromagnet. When the electromagnet is powered off, the moving seat 4 can slide along the upper surface of the slide rail 12. After the moving seat 4 slides to an appropriate position, the electromagnet is started to operate, thereby magnetically fixing the slide rail 12 and the moving seat 4, so that the position of the seat cushion 2 can be quickly adjusted through the moving seat 4. A slide groove 21 is provided on the outer surface of the support seat 6 for slidingly guiding the slide seat 18, so that the movement of the slide seat 18 is more stable. The support seat 6 lifts and supports the guide rod 17 through the support plate 14, and the slide seat 18 can slide along the outer surface of the guide rod 17. At the same time, the guide rod 17 can improve the overall strength of the seat to a certain extent, and can also effectively enhance the stability of the seat during ejection.

[0054] like Figure 2 , Figure 4 and Figure 6 As shown, a buffer assembly is arranged on the upper side of the slide 18, and the buffer assembly includes a spring 23 fixedly connected to the outer surface of the upper end of the slide 18, and the spring 23 is located on the outer side of the guide rod 17. The outer surface of the guide rod 17 is slidably connected to a buffer seat 19, and the outer surface of the buffer seat 19 is fixedly connected to a cushion 7. The outer surface of the lower end of the buffer seat 19 is embedded with a buffer groove 25, and the upper end of the spring 23 is fixedly connected to the inner surface of the buffer groove 25.

[0055] By adopting the above technical solution, the slide seat 18 drives the buffer seat 19 to move synchronously through the spring 23 during the movement, the buffer seat 19 supports the cushion 7, and the spring 23 is stored in the buffer groove 25. When turbulence occurs during the operation of the aircraft, the cushion 7 can effectively buffer and filter the turbulence through the spring 23, thereby improving the comfort of the cushion 7 to a certain extent. At the same time, during the ejection process, the cushion 7 can provide a certain protective effect on the user's waist through the buffering and shock absorption, thereby further improving the safety of the ejection seat.

[0056] like Figure 2 , Figure 4 and Figure 8 As shown, a locking assembly is provided on the outside of the slide 18, and the locking assembly includes a baffle 22 fixedly connected to the slide 18. The number of the baffles 22 is two groups and they are symmetrically distributed. A guide groove 35 is opened on the outer surface of the baffle 22. The moving rod 11 is slidably connected to the inner side of the guide groove 35, and a locking block 24 is fixedly connected to the outer surface of the moving rod 11.

[0057] A connecting plate 16 is fixedly connected to the outer surface of the support seat 6, and a clamping strip 15 is fixedly connected to the end of the connecting plate 16 away from the support seat 6. The lower end of the clamping strip 15 is fixedly connected to the support plate 14, and the outer surface of the clamping strip 15 is serrated. The locking block 24 is in engagement with the clamping strip 15, and a spring 2 36 is fixedly connected to the outer surface of the locking block 24, and the end of the spring 2 36 away from the locking block 24 is fixedly connected to the slide seat 18.

[0058] A traction rope 38 is fixedly connected to the outer surface of the locking block 24, a top rod 37 is fixedly connected between the two groups of baffles 22, the traction rope 38 is guided to extend through the top rod 37, a pull rod 39 is fixedly connected to the lower end of the traction rope 38, a strap 28 is fixedly connected to the outer surface of the cushion 17, a fixed seat 40 is fixedly connected to the outer surface of the upper end of the sliding seat 18, a guide seat 20 is fixedly connected to the outer surface of the upper end of the fixed seat 40, and the guide seat 20 is slidably connected to the guide rod 17.

[0059] By adopting the above technical solution, the support seat 6 fixes and supports the card strip 15 through the connecting plate 16. When the position of the cushion 7 needs to be adjusted, the operator pulls the traction rope 38 downward through the pull rod 39, and the top rod 37 will slide and guide the traction rope 38, so that the lower end of the traction rope 38 remains in a vertical state. The pull rod 39 pulls the locking block 24 through the traction rope 38, and the locking block 24 moves under the pulling force of the traction rope 38. The moving rod 11 fixes and supports the locking block 24. During the movement of the locking block 24, the guide groove 35 can slide and guide the moving rod 11, and the movement of the locking block 24 is more stable through the moving rod 11. After moving a certain distance, the locking block 24 will be out of contact with the surface of the card strip 15. At the same time, the locking block 24 is moving. During the movement, spring 2 36 will be squeezed, and then the operator moves the slide 18 along the outer surface of the guide rod 17, and the slide 18 drives the cushion 17 to move synchronously through the buffer seat 19. When the cushion 17 moves to the appropriate position, the operator releases the pull rod 39. At this time, the locking block 24 moves in the opposite direction and resets under the elastic force of spring 2 36, so that the locking block 24 is engaged with the inside of the card strip 15 to limit the locking block 24, so that the slide 18 is locked and fixed through the cooperation of the card strip 15 and the locking block 24, so that the cushion 17 is fixed and limited through the slide 18 and the buffer seat 19, so that the position of the cushion 17 can be quickly adjusted according to the user's physical characteristics, while ensuring the comfort of the ejection seat, it can also meet the use needs of different users.

[0060] like Figure 2 , Figure 4 , Figure 7 and Figure 8As shown, a slot 34 is embedded on the inner side of the guide seat 20, a core shaft 33 is fixedly connected to the inner surface of the slot 34, an ear seat 32 is rotatably connected to the outer surface of the core shaft 33, a cushion 2 9 is fixedly connected to the outer surface of the left end of the ear seat 32, a pillow 10 is fixedly connected to the outer surface of the left end of the cushion 2 9, and the cushion 2 9 is located on the upper side of the cushion 1 7.

[0061] An ear plate 26 is fixedly connected to the outer surface of the right end of the cushion 29, and a pin shaft 27 is fixedly connected to the outer surface of the ear plate 26. A support rod 28 is rotatably connected to the outer surface of the pin shaft 27. A storage groove 29 is provided on the outer surface of the lower end of the support rod 28, and a pin shaft 2 30 is fixedly connected to the inner surface of the storage groove 29. A support rod 2 31 is rotatably connected to the outer surface of the pin shaft 20. The lower end of the support rod 28 is engaged with the outer surface of the clamping strip 15, and the lower end of the support rod 2 31 is in contact with the outer surface of the cushion 29. The pin shaft 27 and the pin shaft 2 30 are both damping shafts 13.

[0062] By adopting the above technical solution, the slide 18 supports the guide seat 20 through the fixed seat 40, so that the slide 18 can drive the guide seat 20 to move synchronously through the fixed seat 40, and then the positions of the cushion 1 7 and the cushion 2 9 are adjusted synchronously. When the ejection seat is ejected from the cabin, the pilot's body will be subjected to a large overload. In order to effectively protect the pilot's spine, it is necessary to keep the cushion 2 9 in close contact with the user's back. Therefore, it is necessary to adjust the angle of the cushion 2 9. At this time, the operator first rotates the support rod 2 31 through the pin 2 30, so that the support rod 2 31 is stored in the storage groove 29. The guide seat 20 fixes and supports the mandrel 33 through the notch 34, so that the ear seat 32 can rotate with the mandrel 33 as the fulcrum. When the cushion 29 is rotated to an appropriate angle, the operator rotates the support rod 28 with the pin 27 as the fulcrum, and snaps the lower end of the support rod 28 into the interior of the card strip 15, supports and limits the cushion 7 through the support rod 28, and then uses the pin 230 to fix and support the mandrel 33. The support rod 2 31 is rotated as a fulcrum, and one end of the support rod 2 31 is pressed against the surface of the cushion 2 9, so that a stable triangular structure is formed between the support rod 1 28, the support rod 2 31 and the cushion 2 9. When the cushion 2 9 is in close contact with the back of the user, the cushion 29 will apply a certain extrusion force to the support rod 1 28, so that the lower end of the support rod 1 28 can be tightly clamped inside the clamping strip 15. The pin shaft 1 27 and the pin shaft 2 30 both use the damping shaft 13, so that the support rod 1 28 and the support rod 2 31 will remain stationary when not affected by external forces, thereby reducing the probability of accidental rotation of the support rod 1 28 and the support rod 2 31. By engaging the lower end of the support rod 28 to different positions of the clamping strip 15, the back cushion 29 can be adjusted to different angles, thereby effectively expanding the adjustment range of the back cushion 29, and further effectively improving the comfort of the ejection seat during use. At the same time, when the seat is ejected, the back cushion 29 can keep a close fit with the pilot's back, thereby providing cushioning protection for the patient's spine, and further improving the safety protection effect of the ejection seat. The headrest 10 on the surface of the back cushion 29 can support the user's neck, and the strap 1 5 and the strap 2 8 can provide good protection for the user's body.

[0063] An adjustment method for an ejection seat angle adjustment device:

[0064] S1: First, the positioning rod 43 is disengaged from the card slot 41, and the support seat 6 is rotated with the rotating shaft 13 as a fulcrum to adjust the overall angle of the ejection seat backrest;

[0065] S2: Then the push rod 44 drives the positioning rod 43 to move into the slot 41, and the positioning rod 43 cooperates with the slot 41 to engage and limit the support seat 6 and the rotating shaft 13, so that the position of the support seat 6 remains stable, so that the support seat 6 and the mounting seat 1 are adjusted to different angles;

[0066] S3: The slide seat 18 drives the back cushion 1 7 and the back cushion 2 9 to slide along the outer surface of the guide rod 17, so as to flexibly adjust the height of the back cushion 1 7 and the back cushion 2 9, so that the back cushion 1 7 and the back cushion 2 9 fit the user's back more comfortably;

[0067] S4: The slide seat 18 is locked and fixed by cooperating with the clamping strip 15 and the locking block 24, and the cushion 1 7 and the cushion 2 9 are fixed and limited by the slide seat 18 and the buffer seat 19, so that the positions of the cushion 1 7 and the cushion 2 9 are kept stable, thereby improving the stability of the seat during ejection;

[0068] S5: By engaging the lower end of the support rod 1 28 to different positions of the clamping strip 15, a stable triangular structure is formed between the support rod 1 28, the support rod 2 31 and the cushion 2 9 to support the cushion 2 9, so that the cushion 2 9 can be adjusted to different angles, effectively improving the comfort of the ejection seat during use.

[0069] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0070] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An ejection seat angle adjustment device, comprising two groups of symmetrically distributed mounting seats, a mounting plate fixedly connected between the two groups of mounting seats, a rotating shaft fixedly connected to the right side of the mounting seat, a supporting seat rotatably connected to the outer surface of the rotating shaft, and adjustment components are arranged at both the front and rear ends of the rotating shaft; The adjustment assembly comprises a locking sleeve threadedly connected to the outer surface of the rotating shaft, a cavity is embedded in the inner side of the rotating shaft, a push rod is slidably connected to the inner surface of the cavity, the push rod is rotatably connected to the locking sleeve, and the push rod is conical at one end away from the locking sleeve; A slot is provided on the inner side of the support seat, the slot is communicated with the inside of the cavity, a positioning rod is slidably connected to the inner side of the slot, the positioning rod is slidably connected to the inner side of the slot, and the adjustment component is used to adjust the angle between the mounting seat and the support seat.

2. The ejection seat angle adjustment device according to claim 1, characterized in that: The number of the slots is several groups and they are distributed in a ring array. The positioning rod is in sliding contact with the outer surface of the push rod. The outer surface of the locking sleeve is provided with evenly distributed anti-slip grooves.

3. The ejection seat angle adjustment device according to claim 2, characterized in that: The upper end outer surface of the mounting plate is fixedly connected with a slide rail, the sliding outer surface is slidably connected with a moving seat, the upper end outer surface of the moving seat is fixedly connected with a seat cushion, the left end of the seat cushion is fixedly connected with a tie strap, the number of the support seats is two groups and they are symmetrically distributed, a pallet is fixedly connected between the two groups of support seats, the upper end outer surface of the pallet is fixedly connected with a guide rod, the number of the guide rods is two groups and they are symmetrically distributed, the outer surface of the guide rod is slidably connected with a slide seat, the outer surface of the support seat is provided with a slide groove, and the slide seat is slidably connected to the support seat through the slide groove.

4. The ejection seat angle adjustment device according to claim 3, characterized in that: A buffer assembly is arranged on the upper side of the slide seat, and the buffer assembly includes a spring 1 fixedly connected to the outer surface of the upper end of the slide seat, the spring 1 is located on the outer side of the guide rod, the outer surface of the guide rod is slidably connected to a buffer seat, the outer surface of the buffer seat is fixedly connected to a cushion 1, the outer surface of the lower end of the buffer seat is embedded with a buffer groove, and the upper end of the spring 1 is fixedly connected to the inner surface of the buffer groove.

5. The ejection seat angle adjustment device according to claim 4, characterized in that: A locking assembly is arranged on the outside of the slide seat, and the locking assembly includes a baffle fixedly connected to the slide seat. The number of the baffles is two groups and they are symmetrically distributed. A guide groove is opened on the outer surface of the baffle, and a moving rod is slidably connected to the inner side of the guide groove. A locking block is fixedly connected to the outer surface of the moving rod.

6. The ejection seat angle adjustment device according to claim 5, characterized in that: A connecting plate is fixedly connected to the outer surface of the support seat, and a clamping strip is fixedly connected to the end of the connecting plate away from the support seat. The lower end of the clamping strip is fixedly connected to the support plate, and the outer surface of the clamping strip is serrated. The locking block is in engagement with the clamping strip, and a spring 2 is fixedly connected to the outer surface of the locking block, and the end of the spring 2 away from the locking block is fixedly connected to the slide seat.

7. The ejection seat angle adjustment device according to claim 6, characterized in that: A traction rope is fixedly connected to the outer surface of the locking block, a top rod is fixedly connected between the two groups of baffles, the traction rope extends through the guide face of the top rod, a pull rod is fixedly connected to the lower end of the traction rope, a strap 2 is fixedly connected to the outer surface of the cushion 1, a fixed seat is fixedly connected to the outer surface of the upper end of the sliding seat, a guide seat is fixedly connected to the outer surface of the upper end of the fixed seat, and the guide seat is slidably connected to the guide rod.

8. The ejection seat angle adjustment device according to claim 7, characterized in that: A slot is embedded in the inner side of the guide seat, a core shaft is fixedly connected to the inner surface of the slot, an ear seat is rotatably connected to the outer surface of the core shaft, a cushion 2 is fixedly connected to the outer surface of the left end of the ear seat, a pillow is fixedly connected to the outer surface of the left end of the cushion 2, and the cushion 2 is located on the upper side of the cushion 1.

9. The ejection seat angle adjustment device according to claim 8, characterized in that: The outer surface of the right end of the second cushion is fixedly connected with an ear plate, the outer surface of the ear plate is fixedly connected with a pin shaft 1, the outer surface of the pin shaft 1 is rotatably connected with a support rod 1, a storage groove is provided on the outer surface of a lower end of the support rod, a pin shaft 2 is fixedly connected to the inner surface of the storage groove, the outer surface of the pin shaft 2 is rotatably connected with a support rod 2, a lower end of the support rod is engaged with the outer surface of the clamping strip, the lower end of the support rod 2 is in contact with the outer surface of the second cushion, and the pin shaft 1 and the pin shaft 2 are both damping shafts.

10. The adjustment method of the ejection seat angle adjustment device according to any one of claims 1 to 9, characterized in that: The steps include: S1: Disconnect the positioning rod from the card slot and rotate the support seat with the rotating shaft as the fulcrum to adjust the overall angle of the ejection seat backrest; S2: The support seat and the rotating shaft are engaged and limited by the positioning rod and the slot, so that the support seat and the mounting seat are adjusted to different angles; S3: driving the cushion 1 and the cushion 2 to slide along the outer surface of the guide rod through the slide seat, so as to flexibly adjust the height of the cushion 1 and the cushion 2; S4: The slide seat is locked and fixed by cooperating with the clamping strip and the locking block, so that the first cushion and the second cushion are fixed and limited by the slide seat and the buffer seat, so that the positions of the first cushion and the second cushion are kept stable; S5: By snapping the lower end of the support rod into different positions of the clip bar, the back cushion 2 can be adjusted to different angles, effectively improving the comfort of the ejection seat during use.

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