Automatic compound pendulum deck chair

Abstract

The invention relates to the field of furniture, in particular to an automatic compound pendulum deck chair. An automatic compound pendulum deck chair comprises a chair frame which is connected with a compound pendulum mechanism. The linkage mechanism is mounted on the chair frame and is connected with the compound pendulum mechanism; the adjustable deck chair is connected with the compound pendulum mechanism, and the inclination angle of a backrest of the adjustable deck chair can be manually adjusted; and the massage mechanism is mounted on the adjustable deck chair and is connected with the linkage mechanism. The compound pendulum mechanism swings back and forth by utilizing the change of the gravity center of a body, so that compared with an existing swinging reclining chair which directly swings on the ground through a supporting structure, the swinging reclining chair can effectively reduce damage to the ground or a carpet caused by swinging of the supporting structure, and different parts of the human body in contact with the backrest and the cushion are massaged through intermittent expansion of a plurality of mutually-spaced air bags; air exhaust and air blowing are performed intermittently through a plurality of heat dissipation branch pipes, so that air flow at the contact parts of a human body and the backrest and the seat cushion is accelerated, the heat dissipation effect is further realized, and the functional diversity is increased.

Description

Technical Field

[0001] This invention relates to the field of furniture, and more particularly to an automatic retractable recliner. Background Technology

[0002] Currently, most common reclining chairs or rocking chairs on the market are traditional mechanical swinging structures. They swing back and forth by contacting the ground with the support structure, which can easily damage the floor or carpet. Moreover, their functions are relatively limited. Some reclining chairs with massage functions require an external power source to drive the electric massage head, which not only consumes a lot of energy but also has problems such as loud noise, complex wiring, and poor safety. They are especially limited in use outdoors or in environments without power. Summary of the Invention

[0003] In order to overcome the shortcomings of traditional reclining chairs or rocking chairs that rely on a support structure to rock back and forth in contact with the ground to achieve reciprocating swinging, which can easily damage the floor or carpet, and have relatively limited functions, this invention provides an automatic reciprocating reclining chair.

[0004] Technical solution: An automatic reclining chair includes: a chair frame with a reswing mechanism connected thereto; a linkage mechanism installed on the chair frame and connected to the reswing mechanism; an adjustable reclining chair connected to the reswing mechanism, wherein the adjustable reclining chair has a manually adjustable backrest tilt angle; and a massage mechanism installed on the adjustable reclining chair and connected to the linkage mechanism; wherein the reswing mechanism and the linkage mechanism cooperate to drive the massage mechanism, and the backrest and seat cushion of the adjustable reclining chair are respectively provided with a plurality of spaced-apart back panels and cushions.

[0005] Furthermore, it is particularly preferred that the swing mechanism includes two swing units connected to the chair frame. Each swing unit includes two first connecting shafts rotatably connected to the chair frame, two swing plates fixedly connected to the two first connecting shafts respectively, two second connecting shafts rotatably connected to the two swing plates respectively, and a mounting plate fixedly connected to the two second connecting shafts; wherein, both mounting plates of the two swing units are fixedly connected to the adjustable recliner.

[0006] Furthermore, it is particularly preferred that the linkage mechanism includes two linkage units, each of which is connected to a first connecting shaft of one of the repeating pendulum units. Each linkage unit includes: a reciprocating assembly comprising a flat gear fixed to the first connecting shaft, a silent slider slidably connected to the chair frame via a slide rail, a movable plate fixed to the silent slider, and a rack fixed to the movable plate and driven by the flat gear; an adjusting assembly comprising a second piston rod fixed to the movable plate, an adjusting cylinder slidably connected to the second piston rod, and a pneumatic regulating module connected to the adjusting cylinder; and a pneumatic supply assembly comprising a first piston rod fixed to the adjusting cylinder, a first piston rod fixed to the adjusting cylinder, and a first piston rod slidably connected to the first movable plate. The system comprises an air cylinder slidably connected to a piston rod, two connecting pipes communicating with the air cylinder, and two air supply pipes respectively communicating with the two connecting pipes; wherein, the air cylinder is fixedly connected to the chair frame via a connecting block, and the two connecting pipes and the two air supply pipes are all fixedly connected to the mounting plate; both the second piston rod and the first piston rod have pistons at their ends, and the two pistons are slidably connected to the adjusting cylinder and the air cylinder respectively, and respectively divide the interior of the adjusting cylinder and the air cylinder into a first chamber and a second chamber, the air cylinder being filled with inert gas and its initial pressure being greater than the initial pressure in the adjusting cylinder; the two connecting pipes are respectively connected to the first chamber and the second chamber of the air cylinder, and the two air supply pipes are both connected to the massage mechanism.

[0007] Furthermore, it is particularly preferred that the air pressure regulating module includes: an air storage cylinder, which is fixedly connected to the regulating cylinder via a connecting block; a third piston rod, which is provided with threads and has a piston at its end that is slidably connected to the regulating cylinder; a threaded sleeve, which is fixedly connected to the air storage cylinder and screwed to the third piston rod; and two connecting pipes, both of which are connected to the air storage cylinder and respectively connected to the first chamber and the second chamber of the regulating cylinder.

[0008] Furthermore, it is particularly preferred that the gas storage cylinder is provided with an exhaust port, which is located between the threaded sleeve and the piston at the end of the third piston rod.

[0009] Furthermore, it is particularly preferred that the massage mechanism includes a plurality of massage units, each massage unit being connected to one of the pads, and each massage unit including a first air collecting pipe fixedly connected to the pad, a second air collecting pipe fixedly connected to the pad, and a plurality of air bladders communicating with the first air collecting pipe and the second air collecting pipe; wherein, the first air collecting pipe is connected to one air supply pipe of one of the air supply components, and the second air collecting pipe is connected to another air supply pipe of the air supply component.

[0010] Furthermore, it is particularly preferred that the plurality of air bladders connected to the first air collection tube and the plurality of air bladders connected to the second air collection tube are distributed alternately.

[0011] Furthermore, it is particularly preferred that the massage mechanism also includes several heat dissipation units, all of which are connected to two air supply pipes of the other air supply component. Each heat dissipation unit includes two heat dissipation pipes, and each heat dissipation pipe is provided with several equidistant heat dissipation branch pipes. Each heat dissipation pipe is connected to the two air supply pipes respectively. The several heat dissipation units are located in several intervals between several pads of the seat cushion, and each heat dissipation branch pipe is provided with a breathable membrane at its opening.

[0012] Furthermore, it is particularly preferred that the bracket also includes a leg rest that is movably connected to the reciprocating mechanism. Each side of the leg rest is rotatably connected to a first limiting rod, and each of the two mounting plates is provided with a limiting groove and a guide wheel on its facing side. Each of the first limiting rods is located in one of the limiting grooves, and both guide wheels are in contact with the lower side of the leg rest.

[0013] Furthermore, it is particularly preferred that the device also includes a foot support assembly connected to the pendulum mechanism. The foot support assembly includes: a limiting module, of which two are provided, each connected to one of the two mounting plates. The limiting module includes two second limiting rods fixed to one mounting plate and a limiting frame fixed to the two second limiting rods. The limiting frame is provided with a limiting groove. The foot support has a limiting slider on each side, and each of the two limiting sliders is located in one of the limiting grooves.

[0014] Beneficial effects: 1. By utilizing changes in the body's center of gravity, the reciprocating swing mechanism generates a back-and-forth swing. Compared to existing rocking recliners that directly rock on the ground through a support structure, this effectively reduces noise and the damage to the floor or carpet caused by the rocking of the support structure. Several intermittently expanding airbags massage different parts of the body that come into contact with the backrest and seat cushion. Meanwhile, corresponding heat dissipation pipes intermittently draw and blow air through several heat dissipation branches, accelerating airflow in the areas where the body contacts the backrest and seat cushion, thereby achieving a heat dissipation effect and increasing functional versatility.

[0015] 2. The massage and heat dissipation functions can be adjusted by changing the amount of gas output or intake through the air supply pipe via the connecting pipe. Depending on the user's needs, the massage and heat dissipation functions can be turned on or off, thereby improving the user experience, adapting to different needs, and enhancing practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention; Figure 3 This is a partial structural diagram of the present invention; Figure 4This is an assembly diagram of the leg support and foot support of the present invention; Figure 5 This is a three-dimensional structural diagram of the air cylinder, connecting pipe, air supply pipe, first piston rod, and adjusting cylinder assembly of the present invention; Figure 6 This is a three-dimensional structural diagram of the gas storage cylinder, the third piston rod, and the threaded sleeve of the present invention. Figure 7 This is a three-dimensional structural diagram of the combination of the pad, airbag, first air collecting tube and second air collecting tube of the present invention. Figure 8 This is a three-dimensional structural diagram of the airbag, the first air collecting tube, and the second air collecting tube of the present invention. Figure 9 This is a three-dimensional structural diagram of the heat dissipation pipe and heat dissipation branch pipe combination of the present invention.

[0017] In the diagram: 1-Chair frame, 2-First connecting shaft, 3-Swing plate, 4-Mounting plate, 401-Limiting groove, 402-Guide wheel, 5-Adjustable recliner, 501-Pad, 502-Backrest, 6-Leg rest, 601-First limiting rod, 7-Second connecting shaft, 8-Limiting frame, 801-Limiting slide groove, 802-Second limiting rod, 9-Foot rest, 901-Limiting slider, 10-Inflation cylinder, 1001-First chamber, 1002-Second chamber 11-Connecting pipe, 12-Gas supply pipe, 13-First piston rod, 14-Adjusting cylinder, 15-Second piston rod, 16-Moving plate, 17-Rack, 18-Side gear, 1801-Silent cover, 19-Silent slider, 20-Gas storage cylinder, 2001-Exhaust port, 21-Connecting pipe, 22-Third piston rod, 23-Threaded sleeve, 24-Airbag, 25-First gas collection pipe, 26-Second gas collection pipe, 27-Heat dissipation pipe, 2701-Heat dissipation branch pipe. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0019] Example according to Figures 1-9As shown, this embodiment provides an automatic reciprocating recliner, including a chair frame 1, a reciprocating mechanism, a linkage mechanism, and a massage mechanism. The chair frame 1 is connected to the reciprocating mechanism; the linkage mechanism is installed on the chair frame 1 and connected to the reciprocating mechanism; an adjustable recliner 5 is connected to the reciprocating mechanism, and the backrest tilt angle of the adjustable recliner 5 can be manually adjusted; the massage mechanism is installed on the adjustable recliner 5 and connected to the linkage mechanism; the backrest and seat cushion of the adjustable recliner 5 are respectively provided with a plurality of spaced-apart back panels 502 and cushion panels 501. The reciprocating mechanism enables the adjustable recliner 5 to swing back and forth, and the reciprocating mechanism, in conjunction with the linkage mechanism, drives the massage mechanism.

[0020] The reciprocating swing mechanism includes two reciprocating swing units connected to the chair frame 1. Each reciprocating swing unit includes two first connecting shafts 2 rotatably connected to the chair frame 1, two swing plates 3 respectively fixedly connected to the two first connecting shafts 2, two second connecting shafts 7 respectively rotatably connected to the two swing plates 3, and mounting plates 4 fixedly connected to the two second connecting shafts 7. Both mounting plates 4 of the two reciprocating swing units are fixedly connected to the adjustable recliner 5. The reciprocating swing mechanism generates a reciprocating swing by changing the body's center of gravity, causing the adjustable recliner 5 to drive the swing plates 3 to swing via the mounting plates 4. This causes the swing plates 3 to drive the first connecting shafts 2 to reciprocate within the chair frame 1, and the second connecting shafts 7 to reciprocate within the swing plates 3, thereby achieving automatic reciprocating swing using inertia.

[0021] The linkage mechanism includes two linkage units, each of which is connected to a first connecting shaft 2 of one of the repeating units. Each linkage unit includes a reciprocating assembly, an adjusting assembly, and an air supply assembly. The reciprocating assembly includes a flat gear 18 fixedly connected to the first connecting shaft 2, a silent slider 19 slidably connected to the chair frame 1 via a slide rail, a movable plate 16 fixedly connected to the silent slider 19, and a rack 17 fixedly connected to the movable plate 16 and driven by the flat gear 18. The adjusting assembly includes a second piston rod 15 fixedly connected to the movable plate 16, and a... The piston rod 15 is slidably connected to the adjusting cylinder 14 and the air pressure regulating module connected to the adjusting cylinder 14; the air supply assembly includes a first piston rod 13 fixed to the adjusting cylinder 14, an air cylinder 10 slidably connected to the first piston rod 13, two connecting pipes 11 connected to the air cylinder 10, and two air supply pipes 12 respectively connected to the two connecting pipes 11; when the first connecting shaft 2 reciprocates, it drives the rack 17 to reciprocate through the flat gear 18, so that the movable plate 16 drives the silent slider 19 to slide in the slide rail in the chair frame 1, and then drives the second piston rod 15 to reciprocate through the movable plate 16.

[0022] The air cylinder 10 is fixedly connected to the chair frame 1 via a connecting block, and the two connecting pipes 11 and the two air supply pipes 12 are fixedly connected to the mounting plate 4. The ends of the second piston rod 15 and the first piston rod 13 are each provided with a piston. The two pistons are slidably connected to the adjusting cylinder 14 and the air cylinder 10, respectively, and respectively divide the interior of the adjusting cylinder 14 and the air cylinder 10 into a first chamber 1001 and a second chamber 1002. The air cylinder 10 is filled with inert gas, and its initial pressure is greater than the initial pressure in the adjusting cylinder 14. The two connecting pipes 11 are respectively connected to the first chamber 1001 and the second chamber 1002 of the air cylinder 10, and the two air supply pipes 12 are connected to the massage mechanism. The air cylinder 10 is filled with inert gas to keep its air pressure stable. The initial air pressure in the air cylinder 10 is greater than the initial air pressure in the regulating cylinder 14, so that when the second piston rod 15 moves in the regulating cylinder 14, it will not directly cause the first piston rod 13 to move in the air cylinder 10.

[0023] The air pressure regulating module includes an air storage cylinder 20, a third piston rod 22, a threaded sleeve 23, and a connecting pipe 21. The air storage cylinder 20 is fixedly connected to the regulating cylinder 14 via a connecting block. The third piston rod 22 has threads and a piston at its end that is slidably connected to the regulating cylinder 14. The threaded sleeve 23 is fixedly connected to the air storage cylinder 20 and screwed onto the third piston rod 22. Two connecting pipes 21 are provided, each connected to the air storage cylinder 20 and respectively connected to the first chamber 1001 and the second chamber 1002 of the regulating cylinder 14. By screwing the third piston rod 22, the piston at its end forces air from the air storage cylinder 20 into the first chamber 1001 and the second chamber 1002 of the regulating cylinder 14 through the connecting pipes 21, thus achieving air pressure regulation.

[0024] The air reservoir 20 is provided with an exhaust port 2001, which is located between the threaded sleeve 23 and the piston at the end of the third piston rod 22. By turning the third piston rod 22, the air reservoir 20, the connecting pipe 21, and the outside world are connected through the exhaust port 2001, thereby shutting off the massage and heat dissipation functions.

[0025] Each of the spur gears 18 is fitted with a soundproof cover 1801, and each soundproof cover 1801 has a notch corresponding to the rack 17. The soundproof cover 1801 absorbs the noise from the movement of the spur gears 18 and the rack 17, and at the same time protects the movement of the spur gears 18 and the rack 17 to prevent children from accidentally touching and getting injured.

[0026] The massage mechanism includes several massage units, each connected to a pad 501. Each massage unit includes a first air collecting pipe 25 fixed to the pad 501, a second air collecting pipe 26 fixed to the pad 501, and several air bags 24 communicating with the first and second air collecting pipes 25 and 26. The first air collecting pipe 25 is connected to one air supply pipe 12 of an air supply assembly, and the second air collecting pipe 26 is connected to another air supply pipe 12 of the air supply assembly. The intermittent expansion of the air bags 24 connected to the first and second air collecting pipes 25 and 26 provides massage to the human body.

[0027] The air sacs 24 connected to the first air collecting tube 25 and the air sacs 24 connected to the second air collecting tube 26 are distributed alternately. This alternating distribution enhances the massage experience.

[0028] The massage mechanism also includes several heat dissipation units, all of which are connected to two air supply pipes 12 of the other air supply component. Each heat dissipation unit includes two heat dissipation pipes 27, and each heat dissipation pipe 27 is provided with several equidistant heat dissipation branch pipes 2701. Each heat dissipation pipe 27 is connected to the two air supply pipes 12. The heat dissipation units are located in several intervals between several pads 501 of the seat cushion. Each heat dissipation branch pipe 2701 has a breathable membrane at its opening. The breathable membrane at the opening of the heat dissipation branch pipe 2701 provides a preset resistance to the movement of the first piston rod 13 in the corresponding air cylinder 10, thereby facilitating the air pressure regulation module to adjust the heat dissipation function. At the same time, the breathable membrane intercepts external impurities, preventing the heat dissipation branch pipe 2701 from becoming blocked.

[0029] The system also includes a leg rest 6 movably connected to the reciprocating mechanism. Each side of the leg rest 6 is rotatably connected to a first limiting rod 601. Each of the two mounting plates 4 facing each other is provided with a limiting groove 401 and a guide wheel 402. Each first limiting rod 601 is located within a limiting groove 401, and both guide wheels 402 are in contact with the lower side of the leg rest 6. The guide wheels 402 provide support and guidance for the leg rest 6, while the limiting grooves 401 provide limiting support for the first limiting rods 601.

[0030] It also includes a foot support assembly connected to the pendulum mechanism. The foot support assembly includes a limiting module and a foot support frame 9. Two limiting modules are provided, each connected to one of the two mounting plates 4. Each limiting module includes two second limiting rods 802 fixed to one mounting plate 4 and a limiting frame 8 fixed to the two second limiting rods 802. The limiting frame 8 is provided with a limiting groove 801. The foot support frame 9 has a limiting slider 901 on each side, and each of the two limiting sliders 901 is located within a limiting groove 801. The limiting grooves 801 provide limiting support for the limiting sliders 901.

[0031] The backrest also contains several massage units and several heat dissipation units within its various back panels 502 and between them. Each massage unit and heat dissipation unit is connected to a corresponding air supply pipe 12 via two external telescopic hoses, and each telescopic hose is equipped with a switch valve. This allows the backrest to provide the same massage and heat dissipation functions as the seat cushion, and the massage and heat dissipation functions can be turned on and off by opening or closing the switch valves on the telescopic hoses, enhancing its practicality.

[0032] In daily use, the chair frame 1 is supported and stabilized by contact with the ground. The user lies on the adjustable recliner 5 and adjusts the backrest angle as needed. Then, the change in body center of gravity causes the reciprocating mechanism to swing back and forth. The adjustable recliner 5 drives the swing plate 3 to swing through the mounting plate 4. The swing plate 3 drives the first connecting shaft 2 to rotate back and forth within the chair frame 1, and the second connecting shaft 7 to rotate back and forth within the swing plate 3. In this way, the inertia is used to achieve automatic reciprocating swing. When the swing plate 3 swings to the maximum angle and abuts against the second limit rod 802, the user can stabilize the adjustable recliner 5 by keeping the center of gravity unchanged. Compared with existing rocking recliners that directly rock on the ground through the support structure, this can effectively reduce noise and the damage to the ground or carpet caused by the rocking of the support structure. At the same time, the footrest 9 or leg rest 6 can be pulled out for resting the feet or legs, improving comfort.

[0033] When the pendulum mechanism swings back and forth and the first connecting shaft 2 rotates back and forth, the first connecting shaft 2 drives the rack 17 to move back and forth through the flat gear 18, causing the movable plate 16 to drive the silent slider 19 to slide back and forth in the silent slide rail inside the chair frame 1. At the same time, the movable plate 16 drives the piston at the end of the second piston rod 15 to move back and forth in the adjusting cylinder 14. Since the initial air pressure in the adjusting cylinder 14 is lower than the air pressure in the inflation cylinder 10, the piston at the end of the second piston rod 15 moves back and forth in the adjusting cylinder 14, causing the air pressure in the first chamber 1001 or the second chamber 1002 of the adjusting cylinder 14 to increase to a preset value. At this time, the adjusting cylinder 14 drives the piston at the end of the first piston rod 13 to move back and forth in the inflation cylinder 10, thereby causing the movable plate 16 to move back and forth at a preset ratio to the first piston rod 13, and then adjusting the pressure inside the adjusting cylinder 14. The air pressure drives the reciprocating stroke of the movable plate 16 to the first piston rod 13, thereby adjusting the amount of gas output or intake through the connecting pipe 11 via the air supply pipe 12. When the connecting pipe 11 outputs gas through the corresponding air supply pipe 12, the airbag 24 connected to the corresponding first air collection pipe 25 or second air collection pipe 26 will expand. Conversely, the expanded airbag 24 will return to its original position. Thus, the intermittent expansion of several spaced airbags 24 massages different parts of the human body that come into contact with the backrest and seat cushion. Meanwhile, the corresponding heat dissipation pipe 27 intermittently draws in and blows air through several heat dissipation branch pipes 2701, accelerating the airflow at the contact points between the human body and the backrest and seat cushion, thereby achieving a heat dissipation effect. Thus, by adjusting the amount of gas output or intake through the connecting pipe 11 via the air supply pipe 12, the massage function and the heat dissipation function can be adjusted.

[0034] Simultaneously, during use, the massage and heat dissipation functions can be turned on or off according to the user's needs. When turned off, the third piston rod 22 is screwed out of the threaded sleeve 23 by rotating it. The third piston rod 22 drives the piston at its end to move until the exhaust port 2001 is on the other side of the piston. At this time, the exhaust port 2001 and the two connecting pipes 21 are connected to the air storage cylinder 20. That is, the regulating cylinder 14 is connected to the outside through the connecting pipes 21 and the exhaust port 2001. As a result, the piston at the end of the second piston rod 15 can slide freely in the regulating cylinder 14. Thus, when the pendulum mechanism swings back and forth, causing the first connecting shaft 2 to rotate back and forth and causing the second piston rod 15 to move back and forth, it will not pass through the regulating cylinder 14. The first piston rod 13 is driven to reciprocate, thus preventing the piston at the end of the first piston rod 13 from pushing the gas in the regulating cylinder 14, thereby turning off the massage and heat dissipation functions. Conversely, by rotating the third piston rod 22 in the opposite direction, its end piston pushes the air in the air storage cylinder 20 into the regulating cylinder 14 through the connecting pipe 21, which increases the air pressure in the regulating cylinder 14 and thus increases the stroke of the regulating cylinder 14 driving the first piston rod 13 to reciprocate. This increases the amount of gas in the air cylinder 10 that is input into the air supply pipe 12 through the connecting pipe 11, thereby enhancing the effects of the massage and heat dissipation functions. In this way, the two functions can be selected and adjusted as needed, thereby improving the user experience, adapting to different needs, and enhancing practicality.

[0035] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. An automatic reciprocating recliner, characterized in that, include: The chair frame is equipped with a repeating swing mechanism. A linkage mechanism is installed on the chair frame and connected to the repeating mechanism; An adjustable recliner is connected to the reciprocating mechanism, and the recliner's backrest tilt angle can be manually adjusted. and A massage mechanism is installed on the adjustable recliner and connected to the linkage mechanism; The swing mechanism and the linkage mechanism work together to drive the massage mechanism. The backrest and seat cushion of the adjustable recliner are respectively provided with a number of back panels and cushions spaced apart from each other.

2. The automatic reciprocating recliner according to claim 1, characterized in that, The repetitive swing mechanism includes two repetitive swing units connected to the chair frame. Each repetitive swing unit includes two first connecting shafts rotatably connected to the chair frame, two swing plates fixedly connected to the two first connecting shafts respectively, two second connecting shafts rotatably connected to the two swing plates respectively, and a mounting plate fixedly connected to the two second connecting shafts. Both mounting plates of the two repetitive swing units are fixedly connected to the adjustable recliner.

3. The automatic reversing recliner according to claim 1, characterized in that, The linkage mechanism includes two linkage units, each of which is connected to a first connecting shaft of one of the compound pendulum units. Each linkage unit includes: A reciprocating assembly, comprising a flat gear fixedly connected to the first connecting shaft, a silent slider slidably connected to the chair frame via a slide rail, a movable plate fixedly connected to the silent slider, and a rack fixedly connected to the movable plate and drivenly connected to the flat gear. The adjusting assembly includes a second piston rod fixedly connected to the movable plate, an adjusting cylinder slidably connected to the second piston rod, and a pneumatic adjusting module connected to the adjusting cylinder; and A gas delivery assembly, comprising a first piston rod fixedly connected to the regulating cylinder, an air cylinder slidably connected to the first piston rod, two connecting pipes communicating with the air cylinder, and two gas delivery pipes respectively communicating with the two connecting pipes; The air cylinder is fixedly connected to the chair frame via a connecting block, and the two connecting pipes and the two air supply pipes are all fixedly connected to the mounting plate. Both the second piston rod and the first piston rod are provided with pistons at their ends. The two pistons are slidably connected to the adjusting cylinder and the inflation cylinder, respectively, and divide the interior of the adjusting cylinder and the inflation cylinder into a first chamber and a second chamber. The inflation cylinder is filled with inert gas and its initial pressure is greater than that of the adjusting cylinder. The two connecting pipes are respectively connected to the first chamber and the second chamber of the air cylinder, and the two air supply pipes are connected to the massage mechanism.

4. The automatic reversing recliner according to claim 3, characterized in that, The air pressure regulating module includes: The gas storage tank is fixedly connected to the regulating cylinder via a connecting block; The third piston rod is threaded and has a piston at its end that is slidably connected to the adjusting cylinder. The threaded sleeve is fixedly connected to the gas storage cylinder and screwed to the third piston rod; and There are two connecting pipes, both of which are connected to the gas storage cylinder and respectively connected to the first and second chambers of the regulating cylinder.

5. The automatic reciprocating recliner according to claim 4, characterized in that, The gas storage cylinder is provided with an exhaust port, which is located between the threaded sleeve and the piston at the end of the third piston rod.

6. The automatic reciprocating recliner according to claim 3, characterized in that, The massage mechanism includes several massage units, each massage unit being connected to a pad. Each massage unit includes a first air collection pipe fixed to the pad, a second air collection pipe fixed to the pad, and several airbags communicating with the first air collection pipe and the second air collection pipe. The first gas collecting pipe is connected to one gas supply pipe of the gas supply assembly, and the second gas collecting pipe is connected to the other gas supply pipe of the gas supply assembly.

7. The automatic reciprocating recliner according to claim 6, characterized in that, The air sacs connected by the first air collecting tube and the air sacs connected by the second air collecting tube are distributed alternately.

8. The automatic reversing recliner according to claim 6, characterized in that, The massage mechanism also includes several heat dissipation units. All heat dissipation units are connected to two air supply pipes of the other air supply component. Each heat dissipation unit includes two heat dissipation pipes. Each heat dissipation pipe is provided with several equidistant heat dissipation branch pipes. Each heat dissipation pipe is connected to the two air supply pipes respectively. The heat dissipation units are located in several intervals between several pads of the seat cushion, and each heat dissipation branch pipe has a breathable membrane at its opening.

9. An automatic reciprocating recliner according to claim 1, characterized in that, It also includes a leg support frame that is movably connected to the pendulum mechanism. Each side of the leg support frame is rotatably connected to a first limiting rod, and each of the two mounting plates facing each other is provided with a limiting groove and a guide wheel. Each of the first limiting rods is located in one of the limiting grooves, and both guide wheels are in contact with the lower side of the leg rest.

10. An automatic reciprocating recliner according to any one of claims 2-9, characterized in that, It also includes a foot support assembly connected to the pendulum mechanism, the foot support assembly comprising: The limiting module has two parts, each connected to one of the two mounting plates. Each limiting module includes two second limiting rods fixedly connected to one mounting plate and a limiting frame fixedly connected to the two second limiting rods. The limiting frame is provided with a limiting groove. The footrest has a limiting slider on each side, and each of the two limiting sliders is located in a limiting groove.

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