Waist supporting structure of automobile seat

Abstract

The invention relates to the technical field of automobile seats, in particular to an automobile seat waist supporting structure which comprises a shell, a supporting frame installed on one side of the shell and waist supporting equipment composed of a soft cushion fixed to the outer surface of the supporting frame, the interior of the shell is hollow, and a massage mechanism, an air blowing mechanism and a clutch mechanism are arranged in the shell; the blowing mechanism comprises a first pipeline and a second pipeline which are communicated with each other, a multi-way pipe mounted between the second pipeline and the electric massage ball, and a refreshing structure detachably mounted in the second pipeline; the double-shaft driving motor is fixed in the first pipeline and is connected with the fan; and the liquid conveying structure is arranged in the shell and is matched with the refreshing structure for use. When the waist supporting device is used, a user can adjust the massage strength, the blowing strength and the aromatherapy type according to own preferences and requirements, so that personalized riding experience is obtained, and the personalized experience effect of the waist supporting device is improved.

Description

Technical Field

[0001] The invention relates to a lumbar support structure for an automobile seat, in particular to a lumbar support structure for an automobile seat, and belongs to the technical field of automobile seats. Background Art

[0002] Car seats are important parts of the car interior. Their design, materials and functionality have a significant impact on the riding experience. In order to improve the comfort of users sitting in car seats, car seats are often equipped with lumbar support devices to support the waist of the passengers, thereby reducing the probability of waist pain caused by long-term sitting in car seats; Chinese patent CN221986313U discloses "an EPP car seat adaptive lumbar support device, belonging to the field of car seats, including a mounting plate, the mounting plate is mounted in the car seat frame, a driving structure is fixedly mounted on the mounting plate, the driving structure is composed of a motor and a screw, the screw is fixedly mounted on the output shaft of the motor, and two moving structures are symmetrically mounted on the screw. The application sets a lumbar support device composed of a driving structure, a moving structure, an elastic support structure, an EPP support plate and a pressure sensor, and can start the driving structure according to the pressure received by the pressure sensor, thereby adjusting the degree of forward bending of the elastic support structure and the EPP support plate, thereby enabling the adjustment of the elastic support structure and the EPP support plate to more effectively support the waist of the passenger"; The above patent has the following deficiencies: for example, it relies on power supply. The device relies on power supply to drive the motor to work. If the vehicle battery is low or the power supply is interrupted, the device may not work properly, affecting the user's riding experience. The lumbar support device is installed in the car seat, which makes subsequent maintenance extremely inconvenient. In addition, the functionality of the lumbar support device is relatively general and cannot provide the driver with the experience of relieving muscle tension and fatigue.

[0003] Therefore, there is an urgent need to improve the lumbar support device to solve the above-mentioned problems. Summary of the invention

[0004] The purpose of the present invention is to provide a car seat lumbar support structure, in which users can adjust the massage intensity, blowing intensity and aromatherapy type according to their preferences and needs, so as to obtain a personalized riding experience and improve the personalized experience effect of the lumbar support device.

[0005] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the present invention includes: a lumbar support structure for a car seat, comprising a lumbar support device composed of a shell, a support frame installed on one side of the shell, and a cushion fixed on the outer surface of the support frame, wherein the shell is hollow inside and is provided with a massage mechanism, a blower mechanism, and a clutch mechanism; The massage mechanism comprises a mounting plate fixed inside the housing, an electric massage ball mounted inside the mounting plate, and an elastic structure mounted between the mounting plate and the support frame; The air blowing mechanism comprises a first pipeline and a second pipeline connected to each other, a multi-way pipe installed between the second pipeline and the electric massage ball, a refreshing structure detachably installed inside the second pipeline, a valve rotatably installed inside the second pipeline, a driving structure arranged above the second pipeline and connected to the valve and the clutch mechanism, a fan installed inside the first pipeline, a double-axis driving motor fixed inside the first pipeline and connected to the fan, and an infusion structure arranged inside the housing and used in conjunction with the refreshing structure; The clutch mechanism comprises a clutch member arranged inside the shell, a driving structure arranged outside the second pipe and connected to the clutch member, and a transmission structure installed between the dual-axis drive motor and the clutch member.

[0006] Preferably, two fastening belts are fixedly installed on the outer surface of the shell, the support frame is arc-shaped, a leakage hole for use with an electric massage ball is provided inside the support frame, the support frame is fixed to the shell bolts, the elastic structure includes two mounting plates and a first return spring fixed between the two mounting plates, the two mounting plates are respectively fixed to the support frame and the mounting plate, and a guide rod penetrating the inside of the mounting plate is fixed to the outer surface of the mounting plate connected to the support frame.

[0007] Preferably, the adjacent ends of the first pipe and the second pipe are fixedly connected, a support rod fixed to the top wall of the shell is welded on the upper surface of the second pipe, and an air outlet hole for use with the multi-way pipe is opened inside the ball body of the electric massage ball.

[0008] Preferably, the refreshing structure includes a cross fixed inside the second pipe and an aromatherapy component fixed to one side of the cross, and the infusion structure includes a medicine tank fixed inside the shell and an infusion tube fixedly connected between the second pipe and the medicine tank, and a valve component is installed on the infusion tube.

[0009] Preferably, the clutch member includes a vertical plate, a telescopic sleeve and a telescopic rod connected by a spline, an abutment sleeve rotatably sleeved on the outer surface of the telescopic sleeve, a mounting disc rotatably mounted between the telescopic rod and the abutment sleeve, and a second return spring fixed between the two mounting discs and surrounding the outer surface of the telescopic rod.

[0010] Preferably, one end of the telescopic sleeve away from the telescopic rod is fixed to the outer surface of the vertical plate, abutment blocks are slidably mounted on both upper and lower sides of the vertical plate, and two push arms are hingedly mounted between the outer surface of the telescopic sleeve and the two abutment blocks; Among them, anti-slip pads are fixed on the separated sides of the two abutment blocks, sliding blocks are fixed on the outer surfaces of the two abutment blocks, and sliding grooves adapted to the sliding blocks are opened inside the vertical plate. The two abutment blocks are used in conjunction with the transmission structure through the telescopic pushing structure.

[0011] Preferably, one end of the telescopic rod away from the telescopic sleeve is connected to a driving structure, and the driving structure consists of a worm, a driving shaft and a worm wheel. The driving shaft is fixed to the top side of the valve and extends to the outside of the second pipe. The worm wheel is fixed to the top of the driving shaft and meshes with the worm. One end of the worm is connected and fixed to the telescopic rod.

[0012] Preferably, the transmission structure includes a circular shell, a stirring shaft fixed to one side of the circular shell, a driven gear fixed to the outer surface of the circular shell, and a transmission gear fixed to another output shaft of the dual-shaft drive motor, and the stirring shaft extends into the interior of the medicine tank.

[0013] Preferably, the transmission gear is meshed with the driven gear, and a limiting seat for limiting the stirring shaft is installed inside the shell.

[0014] Preferably, the pushing structure includes an electric telescopic rod hingedly mounted on the outer surface of the second pipe and two connecting rods hingedly mounted on the mounting plate and the outer surface of the abutment sleeve, and the two connecting rods are hinged at opposite ends, and the output end of the electric telescopic rod is hinged to the outer surface of the connecting rod connected to the abutment sleeve.

[0015] The present invention has at least the following beneficial effects: 1. The lumbar support structure of the car seat, the lumbar support device combines a support frame and a cushion, provides comfortable lumbar support, helps to relieve lumbar fatigue caused by long-term driving or riding, and the electric massage ball can massage between the mounting plate and the support frame through the elastic structure, further enhancing comfort, and may help promote blood circulation and muscle relaxation, achieving the advantages of comfort and health.

[0016] 2. The lumbar support structure of the car seat, the blower mechanism not only provides ventilation function, but also releases aromatherapy or medicine through the refreshing structure to enhance the riding experience and help refresh the mind. The clutch mechanism allows the user to selectively activate or deactivate the blower mechanism and massage mechanism as needed, which increases the flexibility of use.

[0017] 3. The dual-axis drive motor of the car seat lumbar support structure not only drives the fan, but is also connected to the clutch mechanism through the transmission structure, realizing the coordinated work of multiple components inside the equipment. The design of the clutch mechanism allows the working state to be automatically adjusted through the push of the electric telescopic rod and the connecting rod, thereby improving the movement level of the equipment.

[0018] 4. With the lumbar support structure of the car seat, users can adjust the massage intensity, blowing intensity and aromatherapy type according to their preferences and needs, so as to obtain a personalized riding experience and improve the personalized experience effect of the lumbar support device.

[0019] 5. The lumbar support structure and the refreshing structure of the car seat release fragrance through the aromatherapy parts. Combined with the airflow generated by the blower mechanism, the fragrance can be evenly spread into the car, providing passengers with a pleasant riding experience. This design is particularly suitable for long-distance driving, which helps to relieve driving fatigue and improve driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 It is a front view of the structure of the lumbar support device of the present invention; Figure 2 It is a schematic diagram of the separation structure of the lumbar support device of the present invention; Figure 3 It is a structural schematic diagram of the massage mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of the air outlet of the present invention; Figure 5 It is a structural schematic diagram of the hair dryer mechanism of the present invention; Figure 6 It is a structural schematic diagram of the refreshing structure of the present invention; Figure 7 It is a structural schematic diagram of the clutch mechanism of the present invention; Figure 8 It is a schematic diagram of the structure of the clutch member of the present invention; Fig. 9 For the present invention Figure 8 A is a schematic diagram of the enlarged structure shown; Fig.10 It is a structural schematic diagram of the driving structure of the present invention.

[0021] In the figure, 1. lumbar support device; 101. shell; 102. support frame; 103. cushion; 104. fastening belt; 2. massage mechanism; 201. mounting plate; 202. electric massage ball; 203. mounting plate; 204. guide rod; 205. first return spring; 3. blower mechanism; 301. first pipeline; 302. second pipeline; 303. multi-channel pipe; 304. air outlet; 305. refreshing structure; 3051. cross; 3052. aromatherapy element; 306. valve; 307. drive structure; 3071. worm; 3072. drive shaft; 3073. worm gear; 308. fan; 309 , double-axis drive motor; 310, medicine tank; 311, infusion tube; 4, clutch mechanism; 401, clutch member; 4011, vertical plate; 4012, telescopic sleeve; 4013, telescopic rod; 4014, abutment sleeve; 4015, mounting disc; 4016, second return spring; 4017, push arm; 4018, abutment block; 4019, anti-slip pad; 4110, slider; 4111, slide groove; 402, push structure; 4021, electric telescopic rod; 4022, connecting rod; 403, transmission structure; 4031, circular shell; 4032, stirring shaft; 4033, driven gear; 4034, transmission gear. DETAILED DESCRIPTION

[0022] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] like Figure 1 and Figure 2 As shown, the lumbar support structure of the car seat provided in this embodiment includes a lumbar support device 1 composed of a shell 101, a support frame 102 installed on one side of the shell 101, and a cushion 103 fixed on the outer surface of the support frame 102, and the support frame 102 is bolted to the shell 101. Ventilation holes and heat dissipation holes are provided in the shell 101. A maintenance shell is detachably installed on the shell 101. The cushion 103 is made of a breathable material. Two fastening belts 104 are fixedly installed on the outer surface of the shell 101; locking holes are provided inside the two fastening belts 104. Through the two fastening belts 104 fixedly installed on the outer surface of the shell 101, the user can easily fix the lumbar support device 1 on the car seat. The design of the fastening belt 104 makes the installation process simple and quick, without complicated installation steps or tools. And the locking hole provided inside the fastening belt 104 allows the user to select a suitable locking position according to the shape and size of the seat, ensuring that the lumbar support device 1 fits tightly with the seat and provides stable support.

[0024] like Figure 2 - Fig.10As shown, the housing 101 is hollow inside, and a massage mechanism 2, a blower mechanism 3 and a clutch mechanism 4 are arranged inside. Figure 2 - Figure 4 As shown, the massage mechanism 2 includes a mounting plate 201 fixed inside the housing 101, an electric massage ball 202 installed inside the mounting plate 201, and an elastic structure installed between the mounting plate 201 and the support frame 102; specifically, the support frame 102 is arc-shaped, and a leak hole for use with the electric massage ball 202 is provided inside the support frame 102. The elastic structure includes two mounting plates 203 and a first return spring 205 fixed between the two mounting plates 203. The two mounting plates 203 are respectively fixed to the support frame 102 and the mounting plate 201, and the outer surface of the mounting plate 203 connected to the support frame 102 is fixed with a guide rod 204 that runs through the inside of the mounting plate 201. The number of elastic structures is four, and the four elastic structures are arranged in a rectangular shape. The number of electric massage balls 202 is not limited and is set according to demand. The electric massage ball 202 belongs to the conventional technology known to the public in the prior art, so the specific structural composition and working principle thereof will not be described in detail in this article.

[0025] like Figure 2 - Figure 6 and Fig.10 As shown, the hair dryer mechanism 3 includes a first pipe 301 and a second pipe 302 that are connected, a multi-way pipe 303 installed between the second pipe 302 and the electric massage ball 202, a refreshing structure 305 detachably installed inside the second pipe 302, a valve 306 rotatably installed inside the second pipe 302, a driving structure 307 arranged above the second pipe 302 and connected to the valve 306 and the clutch mechanism 4, a fan 308 installed inside the first pipe 301, a double-axis driving motor 309 fixed inside the first pipe 301 and connected to the fan 308, and an infusion structure arranged inside the housing 101 and used in conjunction with the refreshing structure 305; Figure 5 and Figure 6 As shown, the refreshing structure 305 includes a cross 3051 fixed inside the second pipe 302 and an aromatherapy member 3052 fixed to one side of the cross 3051. The refreshing structure 305 releases fragrance through the aromatherapy member 3052, and combined with the airflow generated by the air blowing mechanism 3, the fragrance can be evenly spread into the car, providing passengers with a pleasant riding experience. This design is particularly suitable for long-distance driving, helping to relieve driving fatigue and improve driving safety. Figure 5 As shown, the infusion structure includes a medicine tank 310 fixed inside the housing 101 and an infusion tube 311 fixedly connected between the second pipeline 302 and the medicine tank 310, and a valve is installed on the infusion tube 311. Figure 3 and Figure 4As shown, the adjacent ends of the first pipe 301 and the second pipe 302 are fixedly connected, and a support rod fixed to the inner top wall of the shell 101 is welded on the upper surface of the second pipe 302. An air outlet 304 used in conjunction with the multi-way pipe 303 is provided inside the sphere of the electric massage ball 202. The fixed connection of the adjacent ends of the first pipe 301 and the second pipe 302 ensures the smooth transmission of the airflow. This design avoids the leakage of the airflow at the pipe connection, thereby ensuring that the hair dryer 3 can provide a stable and strong airflow. The combination of the fan 308 and the dual-axis drive motor 309 provides a sufficient power source for the airflow. The dual-axis drive motor 309 not only drives the fan 308 to rotate to generate airflow, but also may provide power for other components, thereby achieving efficient use of energy.

[0026] It is worth mentioning that the design of the blower mechanism 3 in the car seat lumbar support device 1 has shown significant advantages in air delivery effect, refreshing function, etc. These advantages jointly enhance the passenger's riding experience and increase the functionality and practicality of the device.

[0027] like Figure 2 , Figure 3 , Figure 5 , Figure 7 - Fig.10 The clutch mechanism 4 includes a clutch 401 disposed inside the housing 101, a pushing structure 402 disposed outside the second pipe 302 and connected to the clutch 401, and a transmission structure 403 installed between the dual-axis drive motor 309 and the clutch 401. The clutch 401 includes a vertical plate 4011, a telescopic sleeve 4012 and a telescopic rod 4013 connected by splines, an abutment sleeve 4014 rotatably sleeved on the outer surface of the telescopic sleeve 4012, a mounting disc 4015 rotatably mounted between the telescopic rod 4013 and the abutment sleeve 4014, and a second return spring 4016 fixed between the two mounting discs 4015 and surrounding the outer surface of the telescopic rod 4013. Specifically, one end of the telescopic sleeve 4012 away from the telescopic rod 4013 is fixed to the outer surface of the vertical plate 4011, and abutment blocks 4018 are slidably installed on the upper and lower sides of the vertical plate 4011. Two push arms 4017 are hingedly installed between the outer surface of the telescopic sleeve 4012 and the two abutment blocks 4018; wherein, anti-skid pads 4019 are fixed to the separated sides of the two abutment blocks 4018, and the design of the anti-skid pads 4019 increases the friction between the abutment blocks 4018 and the contact surface, thereby preventing sliding and misoperation. The setting of the second reset spring 4016 ensures that the clutch 401 can return to the initial state when not affected by external forces, thereby improving the reliability of the system. Slide blocks 4110 are fixed to the outer surfaces of the two abutment blocks 4018, and a slide groove 4111 adapted to the slide blocks 4110 is provided inside the vertical plate 4011. The two abutment blocks 4018 are used in conjunction with the transmission structure 403 through the telescopic movement of the push structure 402.

[0028] like Figure 7 - Fig.10 As shown, one end of the telescopic rod 4013 away from the telescopic sleeve 4012 is connected to the driving structure 307, and the driving structure 307 is composed of a worm 3071, a driving shaft 3072 and a worm wheel 3073. The driving shaft 3072 is fixed to the top side of the valve 306, and the driving shaft 3072 extends to the outside of the second pipe 302. The worm wheel 3073 is fixed to the top of the driving shaft 3072 and meshes with the worm 3071. One end of the worm 3071 is connected and fixed to the telescopic rod 4013.

[0029] like Figure 5 and Figure 7 As shown, the transmission structure 403 includes a circular shell 4031, a stirring shaft 4032 fixed to one side of the circular shell 4031, a driven gear 4033 fixed to the outer surface of the circular shell 4031, and a transmission gear 4034 fixed to another output shaft of the dual-axis drive motor 309, and the stirring shaft 4032 extends into the inside of the medicine tank 310. The transmission gear 4034 is meshed with the driven gear 4033, and a limiting seat for limiting the stirring shaft 4032 is installed inside the housing 101. A support seat for supporting the worm 3071 is installed on the upper surface of the second pipe 302.

[0030] like Figure 3 As shown, the pushing structure 402 includes an electric telescopic rod 4021 hingedly mounted on the outer surface of the second pipe 302 and two connecting rods 4022 hingedly mounted on the mounting plate 201 and the outer surface of the abutment sleeve 4014, and the two connecting rods 4022 are hinged at one end relative to each other, and the output end of the electric telescopic rod 4021 is hinged to the outer surface of the connecting rod 4022 connected to the abutment sleeve 4014. The clutch mechanism 4 not only realizes the clutch function, but also realizes the control of the valve 306 and the stirring shaft 4032 by cooperating with the driving structure 307 and the transmission structure 403. This design increases the functional diversity of the equipment, so that the equipment can switch different operating modes as needed. At the same time, the hinged design of the electric telescopic rod 4021 and the connecting rod 4022 makes the pushing process more flexible and can adapt to different clutch requirements. The two abutment blocks 4018 are against the inner wall of the circular shell 4031 through the telescopic movement of the pushing structure 402. like Figure 1 - Fig.10 As shown, the principle of the automotive seat lumbar support structure provided in this embodiment is as follows: When the present invention is used, the two fastening belts 104 are wound around the outside of the car seat and locked and fixed to achieve installation and fixation of the lumbar support device 1. The massage mechanism 2 is arranged in the lumbar support device 1 to improve the comfort of the lumbar support device 1 when in use. The fan 308 and the stirring shaft 4032 are driven by the dual-axis drive motor 309 in cooperation with the transmission structure 403. The fan 308 rotates to convey the generated airflow to the electric massage ball 202 through the multi-channel pipe 303 and discharge it through the air outlet 304. The stirring shaft 4032 rotates to stir the medicine in the medicine tank 310, thereby increasing the activity of the medicine and dripping it onto the aromatherapy component 3052 through the infusion tube 311, and then discharged together through the airflow. Through the telescopic cooperation of the electric telescopic rod 4021 and the connecting rod 4022, the clutch 401 and the mounting plate 201 can be pushed, and the mounting plate 201 is close to the support frame 102, so as to adjust the massage strength of the electric massage ball 202. At the same time, the displacement of the abutment sleeve 4014 in the clutch 401 utilizes the pushing arm 4017 to drive the abutment block 4018 to move, so that the abutment block 4018 is abutted against the inner side of the circular shell 4031, thereby driving the spline-connected telescopic sleeve 4012 and the telescopic rod 4013 to rotate, and the rotation of the telescopic rod 4013 drives the valve 306 to rotate, thereby adjusting the ventilation duct of the second pipe 302, and the intensity of the airflow can be controlled as needed, so that a more comfortable airflow experience is provided during the massage process.

[0031] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0032] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0033] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art shall not depart from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A car seat lumbar support structure, characterized in that: A lumbar support device (1) comprising a shell (101), a support frame (102) mounted on one side of the shell (101), and a soft cushion (103) fixed to the outer surface of the support frame (102); the shell (101) is hollow inside and is provided with a massage mechanism (2), a blower mechanism (3), and a clutch mechanism (4); The massage mechanism (2) comprises a mounting plate (201) fixed inside the housing (101), an electric massage ball (202) mounted inside the mounting plate (201), and an elastic structure mounted between the mounting plate (201) and the support frame (102); The hair blowing mechanism (3) comprises a first pipe (301) and a second pipe (302) which are connected to each other, a multi-channel pipe (303) installed between the second pipe (302) and the electric massage ball (202), a refreshing structure (305) detachably installed inside the second pipe (302), a valve (306) rotatably installed inside the second pipe (302), a driving structure (307) arranged above the second pipe (302) and connected to the valve (306) and the clutch mechanism (4), a fan (308) installed inside the first pipe (301), a double-axis driving motor (309) fixed inside the first pipe (301) and connected to the fan (308), and an infusion structure arranged inside the housing (101) and used in conjunction with the refreshing structure (305); The clutch mechanism (4) comprises a clutch member (401) arranged inside the housing (101), a pushing structure (402) arranged outside the second pipe (302) and connected to the clutch member (401), and a transmission structure (403) installed between the dual-axis drive motor (309) and the clutch member (401).

2. The lumbar support structure of a car seat according to claim 1, characterized in that: Two fastening belts (104) are fixedly mounted on the outer surface of the shell (101); the support frame (102) is arc-shaped; a leak hole for use with the electric massage ball (202) is arranged inside the support frame (102); the support frame (102) is fixed to the shell (101) by bolts; the elastic structure comprises two mounting plates (203) and a first return spring (205) fixed between the two mounting plates (203); the two mounting plates (203) are respectively fixed to the support frame (102) and the mounting plate (201); and a guide rod (204) penetrating the interior of the mounting plate (201) is fixed to the outer surface of the mounting plate (203) connected to the support frame (102).

3. The lumbar support structure of a car seat according to claim 1, characterized in that: The first pipe (301) and the second pipe (302) are fixedly connected at adjacent ends; a support rod fixed to the inner top wall of the shell (101) is welded to the upper surface of the second pipe (302); and an air outlet hole (304) for use with the multi-way pipe (303) is provided inside the ball body of the electric massage ball (202).

4. The lumbar support structure of a car seat according to claim 1, characterized in that: The refreshing structure (305) comprises a cross (3051) fixed inside the second pipe (302) and an aromatherapy component (3052) fixed to one side of the cross (3051); the infusion structure comprises a medicine tank (310) fixed inside the housing (101) and an infusion tube (311) fixedly connected between the second pipe (302) and the medicine tank (310); a valve component is installed on the infusion tube (311).

5. The lumbar support structure of a car seat according to claim 1, characterized in that: The clutch member (401) comprises a vertical plate (4011), a telescopic sleeve (4012) and a telescopic rod (4013) connected by a spline, an abutment sleeve (4014) rotatably sleeved on the outer surface of the telescopic sleeve (4012), a mounting disc (4015) rotatably mounted between the telescopic rod (4013) and the abutment sleeve (4014), and a second return spring (4016) fixed between the two mounting discs (4015) and surrounding the outer surface of the telescopic rod (4013).

6. The lumbar support structure of a car seat according to claim 5, characterized in that: One end of the telescopic sleeve (4012) away from the telescopic rod (4013) is fixed to the outer surface of the vertical plate (4011); abutment blocks (4018) are slidably mounted on both the upper and lower sides of the vertical plate (4011); and two push arms (4017) are hingedly mounted between the outer surface of the telescopic sleeve (4012) and the two abutment blocks (4018); Among them, an anti-skid pad (4019) is fixed on the separated side of the two abutment blocks (4018), a sliding block (4110) is fixed on the outer surface of the two abutment blocks (4018), a sliding groove (4111) adapted to the sliding block (4110) is provided inside the vertical plate (4011), and the two abutment blocks (4018) are used in conjunction with the transmission structure (403) through the extension and contraction of the pushing structure (402).

7. The lumbar support structure of a vehicle seat according to claim 6, characterized in that: One end of the telescopic rod (4013) away from the telescopic sleeve (4012) is connected to the driving structure (307); the driving structure (307) is composed of a worm (3071), a driving shaft (3072) and a worm wheel (3073); the driving shaft (3072) is fixed to the top side of the valve (306), and the driving shaft (3072) extends to the outside of the second pipe (302); the worm wheel (3073) is fixed to the top of the driving shaft (3072) and meshes with the worm (3071); one end of the worm (3071) is connected and fixed to the telescopic rod (4013).

8. The lumbar support structure of a vehicle seat according to claim 4, characterized in that: The transmission structure (403) includes a circular shell (4031), a stirring shaft (4032) fixed to one side of the circular shell (4031), a driven gear (4033) fixed to the outer surface of the circular shell (4031), and a transmission gear (4034) fixed to the other output shaft of the dual-axis drive motor (309), and the stirring shaft (4032) extends into the interior of the medicine tank (310).

9. The lumbar support structure of a vehicle seat according to claim 8, characterized in that: The transmission gear (4034) is meshed with the driven gear (4033), and a limiting seat for limiting the position of the stirring shaft (4032) is installed inside the housing (101).

10. The lumbar support structure of a vehicle seat according to claim 5, characterized in that: The pushing structure (402) comprises an electric telescopic rod (4021) hingedly mounted on the outer surface of the second pipe (302) and two connecting rods (4022) hingedly mounted on the mounting plate (201) and the outer surface of the abutment sleeve (4014), wherein the two connecting rods (4022) are hingedly mounted at opposite ends, and the output end of the electric telescopic rod (4021) is hingedly mounted on the outer surface of the connecting rod (4022) connected to the abutment sleeve (4014).

Images