A car seat with massage functions for both the seat cushion and backrest.

Abstract

This invention relates to the technical field of automobile seats, and discloses an automobile seat with cushion and backrest massage functions, including a seat body and a massage module disposed on the cushion and backrest. The massage module includes a lower base plate, an upper base plate, an air pump, multiple massage airbag groups, and a massage component disposed below the massage airbag groups. The massage component includes: a housing; a sleeve fixedly disposed in the middle of the housing; several guide components circumferentially distributed around the periphery of the sleeve; at least one set of movable modules slidably disposed inside the guide components; and a connecting frame telescopically disposed on the sleeve. This solution, through the massage component, comprehensively utilizes pneumatic and mechanical transmission, enabling the movable modules to move circumferentially and lift the massage airbag groups, achieving a dynamic composite massage effect that mimics human hand kneading and pushing on the occupant's back, buttocks, and other parts, effectively overcoming the shortcomings of traditional vibration massage being stiff and the simple airbag pressing direction being singular.

Description

Technical Field

[0001] This invention relates to the technical field of car seats, and in particular to a car seat with a cushion and backrest massage function. Background Technology

[0002] With the development of the automotive industry and the improvement of people's living standards, consumers' demands for car ride comfort are increasing. Car seats are no longer just for basic seating and safety needs; integrated intelligent massage functions have become an important feature for mid-to-high-end models to enhance the driving experience and luxury. The mainstream car massage seats on the market mainly use pneumatic airbags or electric motors for driving. These systems typically have preset massage trajectories and intensities, and use programmed control of the inflation and deflation of airbags or the movement of massage heads to achieve massage modes such as kneading, vibration, and wave motions.

[0003] Traditional car seat massage functions mostly rely on a single vibration motor or a simple array of airbags located inside the seat. The vibration motor can only produce a single frequency of vibration, resulting in a stiff, monotonous massage pattern that lacks the nuanced layers and rhythmic variations of a natural massage. Prolonged use can easily cause numbness in passengers. While simple array airbags can achieve basic pressure movements through inflation and deflation, their action is unidirectional, typically only expanding and contracting vertically. They cannot simulate the complex massage techniques of human hands, such as kneading and pushing, which involve lateral movement and point-of-contact changes. Therefore, their effectiveness in relieving muscle fatigue is limited.

[0004] In addition, whether it is vibration or simple airbag pressure, the stimulation is often concentrated on the same area for a long time, lacking dynamic changes, which can easily lead to local muscle fatigue or even discomfort, making it difficult to meet users' growing demand for a comfortable and professional in-car massage experience. Summary of the Invention

[0005] The purpose of this invention is to provide a car seat with seat cushion and backrest massage functions, aiming to solve the problems in the prior art.

[0006] The present invention is implemented as follows: a car seat with seat cushion and backrest massage functions includes a seat body and a massage module disposed on the seat cushion and backrest. The massage module includes a lower base plate, an upper base plate, an air pump, a plurality of massage airbag groups and a massage component disposed below the massage airbag groups.

[0007] The massage component includes:

[0008] case;

[0009] A sleeve is fixedly disposed in the middle of the housing;

[0010] Several guide components are circumferentially distributed around the periphery of the sleeve;

[0011] At least one set of activity modules is slidably positioned inside the guide component;

[0012] The connecting frame is telescopically mounted on the sleeve;

[0013] The diagonal tie rod is hinged at one end to the connecting frame and at the other end to the movable module;

[0014] The active module includes a slide and a backing plate that is telescopically mounted on the slide;

[0015] When the connecting frame retracts inward, the sliding block is pushed outward along the guide assembly by the diagonal tie rod, and at the same time the abutment is lifted upward to push the massage airbag assembly.

[0016] When the connecting frame extends outward, it drives the slide to move obliquely inward toward the adjacent guide component, while the abutment retracts to realize a kneading massage operation.

[0017] Preferably, both the lower substrate and the upper substrate are provided with solenoid valves for controlling the opening and closing of the air passage. The air pump is connected to the solenoid valves through an air guide pipe. By controlling the solenoid valves, the airflow to each of the massage airbag groups is adjusted to drive the massage airbag groups to perform massage actions.

[0018] Preferably, the guiding component includes a triangular guide plate and a J-shaped guide plate;

[0019] The short right-angled side of the triangular guide plate is spaced apart from the long side of the guide plate to form a notch;

[0020] The acute-angle end of the triangular guide plate is connected to a baffle via a spring shaft, and the free end of the baffle abuts against the inner side of the long side of the guide plate.

[0021] Preferably, a first telescopic rod is slidably installed inside the sleeve, the top end of the first telescopic rod extends to the outside of the sleeve and is connected to the connecting frame, and a return spring is sleeved on its outside;

[0022] The bottom of the sleeve is provided with a guide tube groove, and a driving airbag is provided inside it. The driving airbag is used to push the first telescopic rod to retract inward against the elastic force of the reset spring.

[0023] Preferably, the bottom of the slide is provided with ball bearings, and side wheels are connected to both sides of the slide via a rotating shaft.

[0024] Preferably, the top of the slide block is connected to a positive and negative screw via a bearing, and a second telescopic rod is threaded onto the positive and negative screw; the abutment is connected to the top of the second telescopic rod.

[0025] A transmission gear is sleeved at the lower end of the second telescopic rod;

[0026] The right-angled long side surface of the triangular guide plate is provided with driving teeth;

[0027] When the slide moves, the transmission gear meshes with the drive cam, driving the forward and reverse screws to rotate, thereby causing the second telescopic rod and the stop plate to rise and fall.

[0028] Preferably, a limiting plate is provided on the top of the slide block, and a guide groove that cooperates with the limiting plate is provided at the lower end of the second telescopic rod;

[0029] The cooperation between the limiting plate and the guide groove prevents the second telescopic rod from rotating with the forward and reverse screws.

[0030] Preferably, a first compression airbag and a second compression airbag are glued to the top of the housing;

[0031] The first compression airbag corresponds to the upper region of the sleeve, and the second compression airbag corresponds to the movement path of the active module;

[0032] The surface of the abutment plate is evenly distributed with several abutment rollers, and the length of the abutment rollers is greater than the width of the second compression airbag.

[0033] Preferably, the surface of the seat body is covered with a surface coating, which covers the massage contact surface of the massage airbag assembly.

[0034] The beneficial effects of the car seat with seat cushion and backrest massage functions disclosed in this invention are:

[0035] 1. This solution utilizes a massage component that combines pneumatic and mechanical transmission to enable the moving module to move circumferentially and lift the massage airbag assembly. This achieves a dynamic composite massage effect that mimics human hand kneading and massaging of the occupant's back, buttocks, and other areas, effectively overcoming the shortcomings of traditional vibration massage, which is stiff and has a single direction of simple airbag pressing.

[0036] 2. Since the number of active modules can be less than the number of guiding components, the massage points can automatically change in a circumferential manner, avoiding the local fatigue and discomfort caused by continuous stimulation of a single area in traditional techniques. This significantly improves the comfort and experience of the massage and helps relieve muscle fatigue. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of a car seat with seat cushion and backrest massage functions provided in an embodiment of the present invention;

[0038] Figure 2 This is a partial interior view of a car seat with seat cushion and backrest massage functions provided in an embodiment of the present invention;

[0039] Figure 3 This is a bottom view schematic diagram of a car seat with seat cushion and backrest massage functions provided in an embodiment of the present invention;

[0040] Figure 4 This is a schematic diagram of a massage module for the back of a car seat with cushion and backrest massage functions provided in an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of a massage component for a car seat with cushion and backrest massage functions provided in an embodiment of the present invention;

[0042] Figure 6 This invention provides a car seat with seat cushion and backrest massage functions. Figure 5 A top-down view;

[0043] Figure 7 This is an internal view schematic diagram of a massage component for a car seat with seat cushion and backrest massage functions provided in an embodiment of the present invention;

[0044] Figure 8 This is a partial structural diagram of a car seat massage component with seat cushion and backrest massage functions provided in an embodiment of the present invention;

[0045] Figure 9 This invention provides a car seat with seat cushion and backrest massage functions. Figure 8 A schematic diagram of the cross-sectional structure in the diagram;

[0046] Figure 10 This is a partial structural diagram of a car seat massage component with seat cushion and backrest massage functions provided in an embodiment of the present invention.

[0047] Marker explanation:

[0048] 1. Seat body; 2. Massage module;

[0049] 21. Lower substrate; 22. Upper substrate; 23. Air pump; 24. Air duct; 25. Massage assembly; 26. Massage airbag assembly;

[0050] 251. Sleeve; 252. Triangular guide plate; 253. Baffle; 254. Notch; 255. Movable module; 256. Guide plate; 257. First compression airbag; 258. Second compression airbag; 259. Housing;

[0051] 2511. Guide tube groove; 2512. First telescopic rod; 2513. Connecting frame; 2514. Diagonal tie rod; 2515. Drive airbag; 2516. Return spring;

[0052] 2521. Drive convex tooth;

[0053] 2551. Side wheel; 2552. Ball bearing; 2553. Positive and negative screws; 2554. Transmission gear; 2555. Second telescopic rod; 2556. Support plate; 2557. Support roller; 2558. Limiting plate; 2559. Slide block;

[0054] 11. Surface coating. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0056] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0057] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0058] In this embodiment:

[0059] Reference Figures 1-4 The diagram shows a preferred embodiment of the present invention.

[0060] This embodiment of a car seat with seat cushion and backrest massage functions includes a seat body 1 and a massage module 2 disposed on the seat cushion and backrest. The massage module 2 includes a lower base plate 21, an upper base plate 22, an air pump 23, multiple massage airbag assemblies 26, and a massage component 25 disposed below the massage airbag assemblies 26. The lower base plate 21 is embedded in the seat cushion of the seat body 1, and the upper base plate 22 is embedded in the backrest of the seat body 1. The air pump 23 is disposed below the seat body 1 and has a pressure sensor for detecting whether the seat is in use. Both the lower base plate 21 and the upper base plate 22 are provided with... The system is equipped with a solenoid valve that controls the opening and closing of the air passage. The air pump 23 is connected to the solenoid valve through the air guide pipe 24. By controlling the solenoid valve, the airflow to each of the massage airbag groups 26 is adjusted to drive the massage airbag groups 26 to perform massage actions. The system realizes real-time control of the solenoid valve through PLC controller programming, and precisely manipulates the opening and closing of each air passage and the gas filling and releasing, so that the massage module 2 can perform massage operations in a variety of predetermined modes. After the pressure sensor detects that the passenger has sat down, it transmits a signal to the PLC controller, which then automatically starts the air pump 23 and the corresponding massage program, realizing intelligent start and stop.

[0061] The air pump 23 is connected to the lower base plate 21 and the upper base plate 22 respectively through the air guide pipe 24, and controls the airflow direction through the solenoid valve to drive the massage airbag group 26 and the massage component 25 to perform kneading and massage actions. Specifically, by rapidly switching the solenoid valve, the airflow is controlled to alternately fill and discharge into specific massage airbag groups 26 and massage components 25, which can simulate the continuous pressure of human hand kneading and the rhythm of massage, effectively relieving muscle fatigue.

[0062] The massage component 25 includes: a housing 259;

[0063] Sleeve 251 is fixedly disposed in the middle of housing 259;

[0064] Several guide components are circumferentially distributed around the periphery of the sleeve 251;

[0065] At least one set of activity modules 255 is slidably positioned inside the guide component;

[0066] The connecting bracket 2513 is telescopically mounted on the sleeve 251;

[0067] The diagonal tie rod 2514 is hinged at one end to the connecting frame 2513 and at the other end to the movable module 255;

[0068] The active module 255 includes a slide 2559 and a stop plate 2556 that is telescopically disposed on the slide 2559;

[0069] When the connecting frame 2513 retracts inward, the sliding block 2559 is pushed outward along the guide assembly by the diagonal tie rod 2514, and at the same time the abutment 2556 is lifted upward to push the massage airbag assembly 26.

[0070] When the connecting frame 2513 extends outward, it drives the slide 2559 to move obliquely inward toward the adjacent guide component, while the abutment 2556 retracts, realizing a kneading massage operation.

[0071] It is worth noting that, in Figure 8 In this configuration, the guiding assembly includes a triangular guide plate 252 and a J-shaped guide plate 256. The short right-angled side of the triangular guide plate 252 is spaced apart from the long side of the guide plate 256, forming a notch 254. The acute-angled end of the triangular guide plate 252 is connected to a baffle 253 via a spring shaft. The free end of the baffle 253 abuts against the inner side of the long side of the guide plate 256. This allows the long right-angled side of the triangular guide plate 252, the guide plate 256, the hypotenuse of the triangular guide plate 252, and the notch 254 to together form a continuous path for the slide block 2559 to slide.

[0072] Furthermore, the baffle 253 ensures that when the slide 2559 enters the guide plate 256 (at which time the connecting frame 2513 is in an inward retracted state), it will abut against the baffle 253 and push its movable end open. When the baffle 253 disengages from the slide 2559, the movable end of the baffle 253 returns to its original position due to the action of the spring shaft. At this time, when the slide 2559 disengages from the guide plate 256 (at which time the connecting frame 2513 is in an outward extended state), it cannot return to its original position through the original channel. Instead, it is guided by the baffle 253 into the inclined side of the triangular guide plate 252 and enters the adjacent channel through the notch 254. In this way, when fewer active modules 255 than the number of guide components are configured, the active modules 255 can continuously move through multiple sets of guide components (for a clearer description of this embodiment, the number of active modules 255 and guide components shown in the schematic diagram are both 4. Usually, the number of active modules 255 is configured to be half the number of guide components). This allows the activity module 255 to perform alternating circumferential massage on individual massage points of passengers through the massage airbag group 26, avoiding local fatigue caused by frequent massage of individual massage points, thereby bringing passengers a more comfortable and pleasant riding experience.

[0073] The slide block 2559 is provided with a ball bearing 2552 at its bottom and side wheels 2551 are connected to its two sides by a rotating shaft, which improves the smoothness of the slide block 2559 sliding inside the guide assembly.

[0074] like Figure 9As shown, a first telescopic rod 2512 is slidably installed inside the sleeve 251. The top end of the first telescopic rod 2512 extends to the outside of the sleeve 251 and is connected to the connecting frame 2513. A return spring 2516 is sleeved on its outside. A guide tube groove 2511 is provided at the bottom of the sleeve 251, and a driving airbag 2515 is provided inside it. The driving airbag 2515 is used to push the first telescopic rod 2512 to retract inward against the elastic force of the return spring 2516. The air pump 23 inflates and deflates the driving airbag 2515, so that when it expands and contracts, it cooperates with the return spring 2516 to push the first telescopic rod 2512 to extend and retract outside the sleeve 251, so as to realize the power source required by the massage component 25.

[0075] Furthermore, such as Figure 10 As shown, the top of the slide block 2559 is connected to a positive and negative screw 2553 via a bearing. A second telescopic rod 2555 is threaded onto the positive and negative screw 2553. The abutment plate 2556 is connected to the top of the second telescopic rod 2555. A transmission gear 2554 is sleeved on the lower end of the second telescopic rod 2555. The right-angled long side surface of the triangular guide plate 252 is provided with a driving tooth 2521. When the slide block 2559 moves, the transmission gear 2554 meshes with the driving tooth 2521, driving the positive and negative screw 2553 to rotate, thereby driving the second telescopic rod 2555 and the abutment plate 2556 to rise and fall.

[0076] The drive tooth 2521 is configured such that when the slide 2559 has finished traveling along the right-angled long side of the triangular guide plate 252, the forward and reverse screws 2553 rotate twice, so that the second telescopic rod 2555 first rises to its top and then descends to its lowest point.

[0077] In other embodiments, the drive tooth 2521 may also be disposed on the right-angled long side and the hypotenuse of the triangular guide plate 252, and the drive tooth 2521 is configured such that when the slide 2559 has finished traveling along the right-angled long side and the hypotenuse of the triangular guide plate 252, the positive and negative screws 2553 rotate twice so as to adjust according to the actual required massage effect.

[0078] In other embodiments, the number of rotations of the forward and reverse screws 2553 is adjusted according to the actual desired massage effect.

[0079] Furthermore, a limiting plate 2558 is provided on the top of the slide block 2559, and a guide groove is provided at the lower end of the second telescopic rod 2555 to cooperate with the limiting plate 2558; the cooperation between the limiting plate 2558 and the guide groove prevents the second telescopic rod 2555 from rotating with the positive and negative screws 2553.

[0080] The massage airbag assembly 26 is a thin airbag with a flat sheet-like surface or a raised surface with massage bumps. The thin airbag is inflated by the air pump 23.

[0081] In this embodiment, as Figures 5-7 As shown, a first compression airbag 257 and a second compression airbag 258 are glued to the top of the housing 259; the first compression airbag 257 corresponds to the upper area of ​​the sleeve 251, and the second compression airbag 258 corresponds to the movement path of the movable module 255; during the movement of the movable module 255, the second compression airbag 258 is compressed by the lifting and lowering of the abutment plate 2556, so that the second compression airbag 258 applies force to the massage airbag assembly 26, and then the massage airbag assembly 26 applies force to the passenger's back, buttocks or legs. When the abutment plate 2556 moves, the massage airbag assembly 26 converts the force into a continuous force operation, producing an effect that imitates human hand massage;

[0082] The first compression airbag 257, under the pushing and pushing action of the first telescopic rod 2512, pushes the massage airbag assembly 26 to perform a pressing operation on the passenger;

[0083] It is worth noting that by changing the degree of inflation of the gas inside the first compression airbag 257 and the second compression airbag 258, the force exerted by the first compression airbag 257 and the second compression airbag 258 on the massage airbag assembly 26 can be adjusted, thereby adjusting the intensity of the massage on the passenger.

[0084] The abutment plate 2556 has a plurality of abutment rollers 2557 evenly distributed on its surface. During the process of squeezing the second compression airbag 258, the length of the abutment roller 2557 is greater than the width of the second compression airbag 258. Therefore, the gas inside the second compression airbag 258 will be pushed and accumulated along the traveling direction of the abutment roller 2557, thereby locally increasing the hardness of the contact part between the second compression airbag 258 and the massage airbag group 26 and improving the massage effect.

[0085] The surface of the seat body 1 is covered with a surface covering 11, which is made of soft materials such as leather or high-grade knitted fabric. The surface covering 11 covers the massage contact surface of the massage airbag assembly 26, which not only effectively avoids direct contact between the massage airbag assembly 26 and the occupant, but also further enhances the comfort of the ride by utilizing the elasticity and cushioning properties of the fabric.

[0086] Working principle: When a passenger sits down, the pressure sensor detects a signal and sends it back to the PLC controller, and the system starts automatically. The airflow generated by the air pump 23 passes through the air duct 24 and is precisely controlled by the solenoid valve to drive the airbags 2515 in the massage airbag assembly 26 and the massage component 25;

[0087] On one hand, airflow fills the massage airbag assembly 26, causing it to expand and directly apply basic pressure to the occupant's body; on the other hand, airflow fills the drive airbag 2515, causing it to expand and push the first telescopic rod 2512 upward against the elastic force of the return spring 2516, causing the connecting frame 2513 to retract inward. The connecting frame 2513 pulls the slide 2559 of the movable module 255 via the diagonal tie rod 2514, causing it to move in the guide path formed by the triangular guide plate 252 and the guide plate 256;

[0088] During this process, the transmission gear 2554 fixed on the slide 2559 meshes with the drive convex tooth 2521 on the triangular guide plate 252, driving the forward and reverse screws 2553 to rotate. Since the second telescopic rod 2555 is restricted from rotating by the limiting plate 2558, it drives the abutment plate 2556 to rise under the action of the threaded pair, pushing the second compression airbag 258 and the massage airbag group 26 above it, realizing the lifting and pushing of the occupant's body. When the drive airbag 2515 deflates, the return spring 2516 pushes the first telescopic rod 2512 and the connecting frame 2513 to move in the opposite direction. Under the push of the diagonal tie rod 2514 and the guidance of the baffle 253, the slide 2559 switches to the adjacent guide path, and at the same time the abutment plate 2556 descends and retracts. This cycle creates a dynamic kneading and massaging motion that combines the circumferential movement of the active module 255 with the lifting and lowering of the support plate 2556. At the same time, the reciprocating motion of the connecting frame 2513 intermittently squeezes the first compression airbag 257, achieving a fixed-point pressing function.

[0089] Through the massage component 25, pneumatic and mechanical transmission are combined to enable the moving module 255 to move circumferentially and lift the massage airbag group 26, realizing a dynamic composite massage effect that mimics human hand kneading and massaging of the occupant's back, buttocks, etc., effectively overcoming the shortcomings of traditional vibration massage being stiff and simple airbag pressing direction being singular.

[0090] Meanwhile, since the number of activity modules 255 can be less than the number of guide components, the massage points can automatically change in a circumferential manner, avoiding the local fatigue and discomfort caused by continuous stimulation of a single part in traditional techniques, significantly improving the comfort and experience of the massage, and helping to relieve muscle fatigue.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A car seat with cushion and back massage function, comprising a seat body (1) and a massage module (2) arranged on the cushion and the back, characterized in that: the massage module (2) comprises a lower base plate (21), an upper base plate (22), an air pump (23), a plurality of massage air bag groups (26) and a massage assembly (25) arranged below the massage air bag groups (26); the massage assembly (25) comprises: a shell (259); a sleeve (251) fixedly arranged at the middle part of the shell (259); a first telescopic rod (2512) slidably arranged in the sleeve (251), the top end of the first telescopic rod (2512) extending to the outside of the sleeve (251) and connected with a connecting frame (2513), and a reset spring (2516) arranged outside the first telescopic rod (2512); a guide pipe slot (2511) arranged at the bottom of the sleeve (251), and a driving air bag (2515) arranged in the guide pipe slot (2511), the driving air bag (2515) being used to push the first telescopic rod (2512) to retract inwardly against the elastic force of the reset spring (2516); a plurality of guide assemblies circumferentially arranged at the periphery of the sleeve (251), each guide assembly comprising a triangular guide plate (252) and a J-shaped guide plate (256); the straight short side of the triangular guide plate (252) is arranged in a spaced manner with the long side of the guide plate (256), forming an opening (254); the acute angle end of the triangular guide plate (252) adjacent to the straight long side is connected with a baffle (253) through a spring shaft, and the free end of the baffle (253) abuts against the inner side of the long side of the guide plate (256); at least one set of movable modules (255) are slidably arranged in the guide assemblies; the connecting frame (2513) is telescopically arranged on the sleeve (251); an inclined pull rod (2514) is hingedly connected at one end with the connecting frame (2513) and at the other end with the movable module (255); wherein the movable module (255) comprises a sliding seat (2559) and a pressing plate (2556) telescopically arranged on the sliding seat (2559); when the connecting frame (2513) retracts inwardly, the sliding seat (2559) is pushed to move outwardly along the guide assembly through the inclined pull rod (2514), and the pressing plate (2556) is lifted upward to push the massage air bag group (26); when the connecting frame (2513) extends outwardly, the sliding seat (2559) is driven to move obliquely inwardly to the adjacent guide assembly, and the pressing plate (2556) is retracted, realizing kneading massage operation. The lower base plate (21) and the upper base plate (22) are both provided with electromagnetic valves for controlling the opening and closing of the air path, the air pump (23) is connected with the electromagnetic valves through an air guide pipe (24), and the air flow to each massage air bag group (26) is adjusted by controlling the electromagnetic valves to drive the massage air bag group (26) to perform massage action. The bottom of the sliding seat (2559) is provided with a ball (2552), and the two sides of the ball (2552) are connected with side wheels (2551) through rotating shafts. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The car seat having the cushion and back massage functions according to claim 1, wherein, ​ 3. The car seat having the cushion and back massage functions according to claim 1, wherein ​ 4. The car seat having the cushion and back massage functions according to claim 1, wherein The top of the sliding base (2559) is connected with a reversible screw rod (2553) through a bearing, a second telescopic rod (2555) is threadedly connected to the reversible screw rod (2553), and the resisting plate (2556) is connected to the top end of the second telescopic rod (2555); The lower end of the second telescopic rod (2555) is sleeved with a transmission gear (2554); The right-angle long side surface of the triangular guide plate (252) is provided with a driving convex tooth (2521); When the sliding base (2559) moves, the transmission gear (2554) is engaged with the driving convex tooth (2521), the reversible screw rod (2553) is driven to rotate, and the second telescopic rod (2555) and the resisting plate (2556) are driven to ascend and descend.

5. The car seat having the cushion and back massage functions according to claim 4, wherein The top of the sliding base (2559) is provided with a limiting plate (2558), and the lower end of the second telescopic rod (2555) is provided with a guide groove matched with the limiting plate (2558); Through the cooperation of the limiting plate (2558) and the guide groove, the second telescopic rod (2555) is prevented from rotating with the reversible screw rod (2553).

6. The car seat having the cushion and back massage functions according to claim 1, wherein The top of the shell (259) is glued with a first extrusion air bag (257) and a second extrusion air bag (258); The first extrusion air bag (257) corresponds to the upper region of the sleeve (251), and the second extrusion air bag (258) corresponds to the movement path of the movable module (255); The surface of the resisting plate (2556) is uniformly provided with a plurality of resisting rollers (2557), and the length of the resisting roller (2557) is greater than the width of the second extrusion air bag (258).

7. The car seat having the massage function of the seat cushion and the backrest according to claim 1, wherein The surface of the seat body (1) is covered with a surface covering layer (11), and the surface covering layer (11) covers the massage contact surface of the massage air bag group (26).

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