Automobile foam headrest assembly

Abstract

The present invention discloses an automobile foam headrest assembly, which relates to the technical field of automobile headrests and aims to solve the technical problems of insufficient safety and comfort of automobile headrests. The assembly comprises a seat back with a safety structure, a seat headrest arranged on the top of the seat back, and a rebound mechanism, an adjustment component, a support component and a massage component arranged inside the seat headrest. The present invention uses two sets of horizontal linear arrays of air leakage cylinders, transmission cylinders and expansion sleeves to axially rotate and switch between horizontal parallel and axial expansion modes. When horizontally parallel, the head applies pressure to cause the expansion sleeves to compress and expand and squeeze each other, which can adaptively shape to fit the head and disperse pressure. During a collision, it absorbs energy in stages and limits displacement, and can also achieve kneading and massage through dynamic pressure. When axially expanded, the expansion sleeve wraps around the back of the head to form a linear support belt, evenly dispersing pressure and reducing the risk of head injury after a collision. And by arranging an elastic structure inside it, it can prevent the headrest from deforming, thereby improving driving comfort and safety.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile headrests, and more particularly to an automobile foam headrest assembly. Background Art

[0002] With the upgrading of the automotive consumer market, users have increasingly higher requirements for the in-car riding experience. As a component that directly contacts the head and neck, the headrest must fit the human body curve, provide dynamic support, and be breathable and heat-dissipating to alleviate fatigue after long driving or riding.

[0003] Currently, most car headrests use fixed-shape foam materials, which are difficult to conform to the different head curves of drivers and passengers. During long-distance driving or riding, the uneven pressure distribution in the contact area between the head and the headrest can easily cause localized pressure, causing neck fatigue and discomfort, and failing to provide accurate and comfortable support for the head.

[0004] In automobile collision accidents, especially rear-end or side collisions, traditional headrests have a single energy absorption method and are unable to effectively limit abnormal head displacement. At the same time, the targeted protection for the back of the head is weak, and the impact force of the collision cannot be fully dispersed, increasing the risk of head injury. It is difficult to meet the requirements of increasingly stringent automobile safety regulations. In addition, the foam material of the automobile headrest is subjected to the force during long-term use and is prone to deformation, which affects its use effect. In view of this, we propose an automobile foam headrest assembly. Summary of the Invention

[0005] The purpose of the present invention is to provide a car foam headrest assembly to solve the technical problems of insufficient safety and comfort of car headrests.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a foam headrest assembly for an automobile, comprising a seat back with a safety structure, a seat headrest arranged on the top of the seat back, a rebound mechanism, an adjustment assembly, a support assembly, and a massage assembly arranged inside the seat headrest, the rebound mechanism comprising two groups of air leaks, a transmission cylinder, and an expansion sleeve arranged in a transverse linear array and capable of axially rotating in opposite or opposite directions, the transmission cylinder being movably sleeved on the surface of the air leak, the expansion sleeve being movably sleeved on the surface of the air leak, each of the transmission cylinders being fixedly connected to a guide rod inserted into the air leak, and an air pressure chamber being formed between each guide rod, the air leak, and the expansion sleeve;

[0007] The drive cylinders and expansion sleeves of the two transverse linear arrays rotate axially toward or against each other, causing the expansion sleeves of the two transverse linear arrays to expand axially or become horizontally parallel. When the expansion sleeves are horizontally parallel, the head exerts a force on the drive cylinders, causing the expansion sleeves to compress, expand, and squeeze each other. This allows for adaptive shaping to precisely fit the curve of the head, dispersing pressure and filling support blind spots. In a car collision, this allows for graded energy absorption and limited abnormal head displacement. Dynamic pressure changes can also exert kneading pressure on the driver's head.

[0008] When axially expanded, it can accurately wrap the curved contour of the back of the head, forming a linear support belt that evenly disperses pressure, and can reduce the risk of injury to the back of the head in a vehicle collision. The present invention uses two sets of horizontal linear arrays of air leak cylinders, transmission cylinders, and expansion sleeves that can be axially rotated to switch between horizontal parallel and axial expansion modes. When horizontally parallel, the head applies pressure to cause the expansion sleeves to compress and expand and squeeze each other, which can adaptively shape to fit the head and disperse pressure. During a collision, it can absorb energy in stages and limit displacement, and can also achieve kneading and massage through dynamic pressure. When axially expanded, the expansion sleeve wraps around the back of the head to form a linear support belt, evenly dispersing pressure and reducing the risk of injury to the back of the head in a collision. This design integrates adaptive support, collision protection, and massage functions to improve driving comfort and safety and adapt to the needs of multiple scenarios.

[0009] Preferably, the rebound mechanism further comprises a plurality of bottom plates, which are fixedly connected to the right inner wall of the seat headrest in a square array, and a load-bearing plate is hinged on one side of each bottom plate.

[0010] Preferably, several of the air leakage cylinders are fixedly connected to one side of the load-bearing plate, and the end surface of each air leakage cylinder is fixedly connected to a slider in an annular array, and the slider is slidably connected to the inside of the sliding groove on the transmission cylinder.

[0011] Preferably, both ends of the expansion sleeve are in close contact between the transmission cylinder and the bearing plate, and each end of the transmission cylinder is hinged with a contact piece.

[0012] Preferably, the adjustment assembly includes several movable rings, which are movably sleeved on the surface of the transmission cylinder. The inner walls on both sides of the seat headrest are symmetrically structured and rotatably connected to two bending rods, which are hinged to the movable rings.

[0013] Preferably, one of the bending rods is fixedly connected to a handle at both ends, each of the bending rods is fixedly connected to a gear cylinder at both ends, and the two vertically opposite gear cylinders are meshed and connected.

[0014] Preferably, the support assembly includes a plurality of curved rods, which are fixedly connected to the right inner wall of the seat headrest in a linear array, a curved surface is arranged on one side of each curved rod, and the curved surface is in movable contact with the left inner wall of the seat headrest, and a slot is provided at one end of each curved rod.

[0015] Preferably, a plurality of support rods are arranged in a linear array on the inner wall of the right side of the seat headrest, and a curved surface is arranged on one side of each support rod. Each support rod is inserted into a slot corresponding to the vertical axis. The present invention forms an arc-shaped arch surface by plugging the bent rod of the support assembly and the support rod through the slot. When the headrest is under pressure for a long time, the support structure is automatically adjusted to avoid deformation and collapse of the force-bearing surface, maintain the soft touch and support performance of the headrest, and extend the service life.

[0016] Preferably, the massage component includes several valve cylinders, which are movably sleeved inside the holes on the contact piece, the inner wall of each valve cylinder is fixedly connected to a valve piece, the inner wall of each hole on the contact piece is fixedly connected to a baffle, and the valve piece and the baffle are sealed and adapted.

[0017] Preferably, the surface of each support rod on the valve cylinder is symmetrically structured and movably sleeved with two first springs, and the first spring is fixedly connected to the contact piece. The present invention uses the dual-chamber design of the contact piece in the massage component and the valve cylinder structure to achieve gas flow through the chamber connection when pressure is applied to the head, thereby producing a kneading massage effect on the head and neck, relieving fatigue from long-term driving. At the same time, the dynamic pressure feedback brought about by the air pressure change can stimulate blood circulation and improve alertness.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention uses two sets of transverse linear arrays of air leakage cylinders, transmission cylinders and expansion sleeves to axially rotate and switch between horizontal parallel and axial expansion modes. When horizontally parallel, pressure applied by the head causes the expansion sleeves to compress, expand and squeeze each other, which can adaptively shape to fit the head and disperse pressure. During a collision, it can absorb energy in stages and limit displacement, and can also achieve kneading and massage through dynamic pressure. When axially expanded, the expansion sleeve wraps around the back of the head to form a linear support belt, evenly dispersing pressure and reducing the risk of head injury after a collision. In addition, by arranging an elastic structure inside it, it can prevent the headrest from deforming, improve driving comfort and safety, and adapt to the needs of multiple scenarios.

[0020] 2. The present invention forms an arc-shaped arch surface by plugging the curved rod of the support assembly and the support rod through a slot. When the headrest is under pressure for a long time, the support structure is automatically adjusted to avoid deformation and collapse of the stress-bearing surface, maintain the soft touch and support performance of the headrest, and extend the service life.

[0021] 3. The present invention uses the dual-chamber design of the contact piece and the valve cylinder structure in the massage component to achieve gas flow through the chamber connection when pressure is applied to the head, producing a kneading massage effect on the head and neck, relieving fatigue from long-term driving. At the same time, the dynamic pressure feedback brought about by the change in air pressure can stimulate blood circulation and improve alertness. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 It is a schematic cross-sectional view of the seat headrest structure of the present invention.

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the rebound mechanism of the present invention.

[0025] Figure 4 This is a schematic cross-sectional view of the contact piece structure of the present invention, illustrating the three-dimensional structure of the massage component.

[0026] Figure 5 It is a schematic diagram of the three-dimensional exploded structure of the massage component of the present invention.

[0027] Figure 6 It is a schematic diagram of the three-dimensional enlarged structure of the rebound mechanism of the present invention.

[0028] Figure 7 It is a schematic diagram of the explosion structure of the rebound mechanism of the present invention.

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the adjustment component of the present invention.

[0030] Figure 9 It is a schematic diagram of the three-dimensional structure of the support assembly of the present invention.

[0031] Figure 10 This is a structural schematic diagram of the transmission cylinder of the present invention in an axially expanded state.

[0032] Figure 11 This is a structural schematic diagram of the transmission cylinder of the present invention in a horizontal use state.

[0033] Explanation of the numbers in the figure: 1. Seat back; 2. Seat headrest; 3. Rebound mechanism; 31. Bottom plate; 32. Load-bearing plate; 33. Air leak cylinder; 331. Slider; 34. Transmission cylinder; 341. Guide rod; 35. Expansion sleeve; 36. Contact plate; 4. Adjustment assembly; 41. Movable ring; 42. Bending rod; 421. Handle; 43. Gear cylinder; 5. Support assembly; 51. Bending rod; 511. Curved surface; 512. Slot; 52. Support rod; 521. Arc surface; 6. Massage assembly; 61. Valve cylinder; 611. Valve plate; 62. Baffle; 63. First spring. DETAILED DESCRIPTION

[0034] like Figures 1-4 、 Figure 6-Figure 7 and Figure 10-11As shown, the present invention relates to an automobile foam headrest assembly, comprising a seat back 1 with a safety structure, a seat headrest 2 arranged on the top of the seat back 1, a rebound mechanism 3, an adjustment assembly 4, a support assembly 5 and a massage assembly 6 arranged inside the seat headrest 2.

[0035] It is worth noting that the safety structure on the seat back 1 includes components such as safety buckles and adjustment slides, and the seat back 1 is composed of a seat frame, fillers and leather, etc., which will not be described in detail here.

[0036] The rebound mechanism 3 includes several negative plates 31, and several of the negative plates 31 are fixedly connected to the right inner wall of the seat headrest 2 in a square array. Each side of the negative plate 31 is hinged with a load-bearing plate 32, and each side of the load-bearing plate 32 is fixedly connected to an air leakage cylinder 33. The end surface of each air leakage cylinder 33 is fixedly connected with a slider 331 in an annular array. The surface of each air leakage cylinder 33 is slidably sleeved with a transmission cylinder 34, and the slider 331 is slidably connected to the inside of the slide groove on the transmission cylinder 34. Each transmission cylinder 34 is fixedly sleeved with a guide rod 341, and the guide rod 341 is slidably sleeved inside the air leakage cylinder 33. The surface of each air leakage cylinder 33 is movably sleeved with an expansion sleeve 35, and the end of the expansion sleeve 35 is in close contact with one side of the transmission cylinder 34. An air pressure chamber is formed between the guide rod 341, the air leakage cylinder 33 and the expansion sleeve 35, and the end of each transmission cylinder 34 is hinged to a contact piece 36 with two chambers.

[0037] It is worth noting that the expansion sleeve 35 and the contact piece 36 are made of rubber material, have elastic deformation characteristics, and can expand and contract.

[0038] Specifically, the several transmission cylinders 34 and expansion sleeves 35 of the two groups of transverse linear arrays can rotate axially toward each other or in opposite directions, causing the several transmission cylinders 34 and expansion sleeves 35 of the two groups of transverse linear arrays to be axially expanded or horizontally parallel. When horizontally parallel, the head exerts a force on the transmission cylinder 34, causing the several expansion sleeves 35 to compress and expand, which can adaptively shape and accurately fit the curve of the head, disperse pressure and fill the support blind spot. In a car collision, it can absorb energy in stages and limit abnormal displacement of the head, and the dynamic pressure change can apply kneading pressure to the driver's head; when axially expanded, it can accurately wrap the arc contour of the back of the head, forming a linear support belt to evenly disperse pressure. In a vehicle collision, it can reduce the risk of injury to the back of the head and further reduce dizziness.

[0039] The present invention uses two groups of transverse linear arrays of air leakage cylinders 33, transmission cylinders 34 and expansion sleeves 35 to axially rotate and switch between horizontal parallel and axial expansion modes. When horizontally parallel, the head applies pressure to cause the expansion sleeves 35 to compress, expand and squeeze each other, which can adaptively shape to fit the head and disperse pressure. During a collision, it can absorb energy in stages and limit displacement, and can also achieve kneading and massage through dynamic pressure. When axially expanded, the expansion sleeve 35 wraps the back of the head to form a linear support belt, evenly dispersing pressure and reducing the risk of brain injury after a collision. And by arranging an elastic structure inside it, it can prevent the headrest from deforming, improve driving comfort and safety, and adapt to the needs of multiple scenarios.

[0040] like Figure 8 As shown, the adjustment assembly 4 includes several movable rings 41, and several of the movable rings 41 are movably connected to the surface of the transmission cylinder 34. The inner walls on both sides of the seat headrest 2 are symmetrically structured and rotatably connected to two bending rods 42, and the bending rods 42 are hinged to the movable rings 41. One of the bending rods 42 is fixedly connected to a handle 421 at both ends, and each of the bending rods 42 is fixedly connected to a gear cylinder 43 at both ends, and the two vertically opposite gear cylinders 43 are meshed and connected.

[0041] Specifically, by manually adjusting the handle 421 and engaging the two vertically opposite gear cylinders 43, the two bending rods 42 are caused to rotate axially toward each other, and the movable ring 41 causes the transmission cylinder 34 to be axially expanded or horizontally parallel.

[0042] When in use, axial rotation is used for expansion: first, the handle 421 is turned, and the two gear cylinders 43 of the vertical axis are engaged and driven to cause the two bending rods 42 to rotate in opposite directions, and the transmission cylinder 34 is caused to rotate in opposite directions through the movable ring 41, forming an expanded state; horizontal parallel: by turning the handle 421 in the opposite direction, the two bending rods 42 are rotated through the gear transmission, so that they are in a horizontal parallel state; when the transmission cylinder 34 is in a horizontal state: the transmission cylinder 34 is moved to one side by the pressure of the head, and the guide rod 341 moves inside the leak cylinder 33, causing the gas inside it to be transported to the expansion sleeve 35, causing it to expand, wherein several expansion sleeves 35 are connected to the expansion sleeve 35, so that the expansion sleeve 35 is ... The expansion sleeve 35 has different expansion states due to uneven pressure on the head, and squeezes each other. Several contact pieces 36 can adaptively shape to accurately fit the curve of the head, disperse pressure and fill the support blind spots. In a car collision, it can absorb energy in stages and limit abnormal displacement of the head. The dynamic pressure change can apply kneading pressure to the driver's head. When the transmission cylinder 34 is deployed, it causes several expansion sleeves 35 to expand through squeezing, which can accurately wrap the arc contour of the back of the head, forming a linear support belt to evenly disperse pressure. In a vehicle collision, it can reduce the risk of injury to the back of the head and further reduce dizziness.

[0043] like Figure 9As shown, the support assembly 5 includes a plurality of bent rods 51, and the plurality of bent rods 51 are fixedly connected to the right inner wall of the seat headrest 2 in a linear array. A curved surface 511 is arranged on one side of each of the bent rods 51, and the curved surface 511 is in movable contact with the left inner wall of the seat headrest 2. A slot 512 is provided at one end of each of the bent rods 51. A plurality of support rods 52 are arranged in a linear array on the right inner wall of the seat headrest 2, and a curved surface 521 is arranged on one side of each of the support rods 52. Each of the support rods 52 is inserted into the slot 512 corresponding to the vertical axis.

[0044] Specifically, when the head applies force to the headrest for a long time, one end of the support rod 52 slides in the slot 512, causing the bending rod 51 and the support rod 52 to form a complete arc-shaped arch surface, supporting the shape of the headrest and preventing the force-bearing surface of the headrest from deforming due to long-term use, affecting its softness during use.

[0045] During use, under pressure, one end of the support rod 52 moves inside the slot 512, causing the support rod 52 and the curved rod 51 to form a complete arc-shaped arch surface, supporting the headrest and maintaining its complete shape.

[0046] The present invention forms an arc-shaped arch surface by connecting the curved rod 51 of the support assembly 5 and the support rod 52 through the slot 512. When the headrest is under pressure for a long time, the support structure is automatically adjusted to avoid deformation and collapse of the load-bearing surface, maintain the soft touch and support performance of the headrest, and extend the service life.

[0047] like Figure 5 As shown, the massage component 6 includes a plurality of valve cylinders 61, and the plurality of valve cylinders 61 are movably sleeved inside the holes on the contact piece 36. The inner wall of each valve cylinder 61 is fixedly connected to a valve piece 611, and the inside of each hole on the contact piece 36 is fixedly connected to a baffle 62, and the valve piece 611 is sealed and adapted to the baffle 62. The surface of the support rod on each valve cylinder 61 is a symmetrical structure and movably sleeved with two first springs 63, and the first spring 63 is fixedly connected to the contact piece 36.

[0048] Specifically, when one of the chambers on the contact piece 36 is subjected to a force, the valve cylinder 61 moves to one side, causing the valve piece 611 to move out of the hole on the blocking piece 62, so that the two chambers are connected, which can massage the local part of the head.

[0049] During use, when the head leans against the cushion for a long time, the air pressure in one of the chambers on the contact piece 36 is applied by the head, causing the valve cylinder 61 to move to one side, and the valve piece 611 to move out from the baffle 62, so that the two chambers are connected to provide the most comfortable state environment, and the air flow can massage the head and neck.

[0050] The present invention uses the dual-chamber design of the contact piece 36 in the massage component 6 and the valve tube 61 structure to achieve gas flow through the chamber connection when pressure is applied to the head, producing a kneading massage effect on the head and neck, relieving fatigue from long-term driving. At the same time, the dynamic pressure feedback brought about by the air pressure change can stimulate blood circulation and improve alertness.

[0051] Working Principle: This embodiment provides a foam headrest assembly for automobiles. Axial rotation and deployment: first, turn the handle 421, and the two gear cylinders 43 on the vertical axis engage and transmit the two bent rods 42 to rotate in opposite directions, and then the transmission cylinder 34 rotates in opposite directions through the movable ring 41, forming the deployed state. Horizontal parallelization: by turning the handle 421 in the opposite direction, the two bent rods 42 rotate through the gear transmission, so that they are in a horizontal parallel state.

[0052] When the driver's head contacts the headrest, the transmission cylinder 34 is in a horizontal state: the transmission cylinder 34 moves to one side due to the pressure of the head, and the guide rod 341 moves inside the air leakage cylinder 33, causing the gas inside it to be transported to the expansion sleeve 35 to expand it. Among them, the expansion sleeves 35 have different expansion states due to uneven pressure on the head and squeeze each other. The contact pieces 36 can adaptively shape and accurately fit the curve of the head, disperse the pressure and fill the support blind spot, and in the event of a car collision, they can absorb energy in stages and limit abnormal displacement of the head, and the dynamic pressure change can apply kneading pressure to the driver's head; at the same time, when the transmission cylinder 34 is in the unfolded state, it squeezes the expansion sleeves 35 to expand, which can accurately wrap the arc of the back of the head. The contour forms a linear support belt to evenly distribute the pressure. In a vehicle collision, it can reduce the risk of injury to the back of the head and further reduce the feeling of dizziness. In this process, due to the long-term pressure on the headrest, the contact surface is deformed. In the process of pressure, one end of the support rod 52 moves inside the slot 512, causing the support rod 52 and the curved rod 51 to form a complete arc-shaped arch surface, which supports the headrest and maintains its complete shape. When the head leans on it for a long time, the head applies air pressure to one of the chambers on the contact piece 36, causing the valve cylinder 61 to move to one side, and the valve piece 611 moves out of the baffle 62, so that the two chambers are connected to provide the most comfortable state environment, and the air flow can massage the head and neck.

[0053] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A car foam headrest assembly, comprising a seat headrest, adapted to be mounted on the top of a seat back with a safety structure, wherein a rebound mechanism, an adjustment component, a support component, and a massage component are arranged inside the seat headrest, characterized in that: The rebound mechanism includes two groups of air cylinders, transmission cylinders and expansion sleeves in a transverse linear array and capable of axially rotating in opposite or opposite directions. The transmission cylinder is movably sleeved on the surface of the air cylinder, and the expansion sleeve is movably sleeved on the surface of the air cylinder. A guide rod is fixedly connected to the inside of each transmission cylinder, and the guide rod is inserted into the inside of the air cylinder. An air pressure chamber is formed between each guide rod, air cylinder and expansion sleeve. Several bottom plates are fixedly connected to the inner wall of the right side of the seat headrest in a square array. A load-bearing plate is hinged on one side of each bottom plate. Several air cylinders are fixedly connected to one side of the load-bearing plate. The end of each air cylinder The surfaces are all in an annular array and are fixedly connected with sliders, and the sliders are slidably connected to the inside of the slide groove on the transmission cylinder. The two ends of the expansion sleeve are in close contact between the transmission cylinder and the load-bearing plate. Each end of the transmission cylinder is hinged with a contact piece. The adjustment assembly includes a plurality of movable rings, and the plurality of movable rings are movably sleeved on the surface of the transmission cylinder. The inner walls on both sides of the seat headrest are symmetrically structured and rotatably connected to two bending rods, and the bending rods are hinged to the movable rings. One of the bending rods is fixedly connected to a handle at both ends, and each of the bending rods is fixedly connected to a gear cylinder at both ends, and the two vertically opposite gear cylinders are meshed and connected; Among them, by manually adjusting the handle and meshing the two vertically opposite gear cylinders, the two bending rods are caused to rotate axially toward each other, and the movable ring causes the transmission cylinder to be axially expanded or horizontally parallel in two usage states; The drive cylinders and expansion sleeves of the two transverse linear arrays rotate axially in opposite or opposite directions, causing the expansion sleeves of the two transverse linear arrays to be axially extended or horizontally parallel. When horizontally parallel, the head exerts a force on the drive cylinder to compress and expand the expansion sleeves and squeeze each other, which can adaptively shape and accurately fit the curve of the head, disperse pressure and fill the support blind area. When expanded axially, it can accurately wrap the curved contour of the back of the head, forming a linear support belt to evenly distribute pressure, which can reduce the risk of injury to the back of the head in a vehicle collision.

2. The automotive foam headrest assembly according to claim 1, characterized in that: The support assembly includes a plurality of curved rods, which are fixedly connected to the right inner wall of the seat headrest in a linear array. A curved surface is arranged on one side of each curved rod, and the curved surface is in movable contact with the left inner wall of the seat headrest. A slot is provided at one end of each curved rod.

3. The automotive foam headrest assembly according to claim 2, characterized in that: The inner wall on the right side of the seat headrest is provided with a plurality of support rods arranged in a linear array, each support rod having a curved surface on one side, and each support rod is inserted into a slot corresponding to the vertical axis; When the head applies force to the headrest for a long time, one end of the support rod slides in the slot, causing the bent rod and the support rod to form a complete arc-shaped arch surface, which supports the shape of the headrest.

4. The automobile foam headrest assembly according to claim 3, characterized in that: The massage component includes several valve cylinders, which are movably sleeved inside the holes on the contact piece. The inner wall of each valve cylinder is fixedly connected to a valve piece, and the inside of each hole on the contact piece is fixedly connected to a baffle, and the valve pieces are sealed and adapted to the baffle.

5. The automobile foam headrest assembly according to claim 4, characterized in that: The surface of the support rod on each valve cylinder is symmetrically structured and movably sleeved with two first springs, and the first springs are fixedly connected to the contact piece; When one of the chambers on the contact plate is subjected to a force, the valve tube moves to one side, causing the valve plate to move out of the hole on the baffle, so that the two chambers are connected, which can provide local massage of the head.

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