A magnetic suction type headrest structure for interchangeable car seats and its usage method

Abstract

The present application discloses a magnetic-absorbing type headrest structure for interchangeable car seats and its usage method, which specifically relates to the technical field of car seat accessories. It includes a folding seat and a magnetic connection structure. A replaceable lumbar pillow is installed at the backrest part of the folding seat, and a replaceable headrest is arranged above the replaceable lumbar pillow. A magnetic connection structure is arranged between the folding seat and the replaceable lumbar pillow. The magnetic connection structure includes a first connection component and a second connection component, and the second connection component is arranged on the side of the first connection component away from the folding seat. During the design process of the magnetic connection structure, during the use of the seat backrest, by adapting to the best comfort of the seat backrest, the inclination surface position of the connection part between the magnetic connection structures is adjusted to complete the fixation of the magnetic connection structure during the merging process, so as to prevent the detachment of the magnetic-absorbing part during driving when a collision occurs.

Description

Technical Field

[0001] This application relates to the technical field of automotive seat accessories. More specifically, this application relates to an interchangeable magnetic pillow structure for automotive seats and its usage method. Background Art

[0002] During the use of automotive seats, the comfort of the headrest is crucial for the experience of drivers and passengers. Traditional automotive seat headrests are usually of a fixed structure, making it difficult to replace or adjust according to the needs of different users, and unable to meet diverse comfort requirements. Some replaceable headrests have problems such as unstable connection methods, inconvenient installation and disassembly, which affect the actual user experience. Therefore, it is of great practical significance to develop an automotive seat headrest structure with a stable connection, easy replacement, and improved comfort.

[0003] After retrieval, the existing publication number: CN107458275A discloses a headrest fixing mechanism for automotive seats; a base, a seat cushion provided on the base, a backrest rotatably connected to the base, and a headrest provided on the backrest; the top of the backrest is an inclined surface that slopes away from the seat cushion, and multiple first magnets are provided inside the inclined surface, and the back of the headrest is provided with second magnets corresponding to the multiple first magnets. A headrest fixing mechanism for automotive seats and its manufacturing process, the mechanism is reasonably designed. In particular, the headrest is installed in place by the mutual attraction of two magnets. At the same time, during the manufacturing process, the magnets are pretreated, which can keep the magnetism of the magnets longer and do not need to be replaced for 10 years. The inventors found the following problems in the prior art during the implementation of this application:

[0004] Some existing replaceable headrests have problems such as unstable connection methods, inconvenient installation and disassembly, which affect the actual user experience. However, when using a magnetic structure to fix the headrest, in case of a collision, it often causes the separation of the contact surfaces of the magnetic attraction, resulting in the headrest falling off.

[0005] Therefore, an interchangeable magnetic pillow structure for automotive seats and its usage method are proposed to solve the above problems. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, this application provides an interchangeable magnetic pillow structure for automotive seats and its usage method to solve the problems raised in the above background art.

[0007] To achieve the above object, the present application provides the following technical solutions: A magnetically attracted pillow structure for interchangeable car seats, comprising a folding seat and a magnetic connection structure. A replaceable lumbar pillow is installed at the backrest part of the folding seat, and a replaceable headrest is arranged above the replaceable lumbar pillow. A magnetic connection structure is arranged between the folding seat and the replaceable lumbar pillow. The magnetic connection structure includes a first connection component and a second connection component. The second connection component is arranged on the side of the first connection component away from the folding seat. An adjusting component is installed at the edge of the folding seat through bolts.

[0008] Preferably, the first connection component includes a first installation housing, fixing holes, first installation holes, second installation holes, insertion protrusions and anti-detachment plug joints. Fixing holes are arranged on the four sides of the first installation housing. Two groups of first installation holes are penetrated through the inner wall of the first installation housing. A second installation hole is arranged between the two groups of first installation holes. An insertion protrusion is arranged on the side of the first installation housing away from the replaceable lumbar pillow. An anti-detachment plug joint is arranged above the insertion protrusion.

[0009] Preferably, the second connection component includes a second installation housing, installation ears, neodymium iron boron adsorption magnetic sheets, insertion grooves, annular magnetic adsorption rings, insertion sleeves and installation screws. Installation ears are arranged on both sides of the second installation housing. An insertion groove is arranged between the two groups of installation ears. Two groups of neodymium iron boron adsorption magnetic sheets are clamped at the edge of the inner wall of the insertion groove. An annular magnetic adsorption ring is installed between the two groups of neodymium iron boron adsorption magnetic sheets. An insertion sleeve is arranged above the second installation housing. Installation screws penetrate through and are connected to the inner walls of the installation ears.

[0010] Preferably, first positioning protrusions are arranged on the four sides of the insertion protrusion, and positioning grooves are arranged on the four sides of the inner wall of the insertion groove. The first connection component and the second connection component are connected through the insertion protrusion and the insertion groove. The insertion protrusion and the insertion groove are clamped through the first positioning protrusion and the positioning groove. The insertion protrusion and the insertion groove are inclined 3° along the horizontal plane.

[0011] Preferably, the second connection component further includes adsorption connection columns, fitting connection columns and fitting gaskets. A fitting connection column is installed between the two groups of adsorption connection columns. A fitting gasket is arranged on the side of the fitting connection column away from the second installation housing.

[0012] Preferably, two groups of fixing screws are arranged above the first installation housing. A sealing shell is installed between the two groups of fixing screws and the annular magnetic adsorption ring. Silent rubber sheets are arranged on both sides of the sealing shell.

[0013] Preferably, a resilient clamp is provided above the anti-detachment plug connector. When the first connection assembly and the second connection assembly are combined, the anti-detachment plug connector and the socket sleeve form a clamping structure through the resilient clamp. The fitting connection column includes a magnet adsorption fitting ring and a connection gasket, and a connection gasket is provided on the side of the magnet adsorption fitting ring away from the second connection assembly.

[0014] Preferably, the folding seat includes a seat cushion skeleton, an assembly base, a clamping member, a clamping portion, and a backrest skeleton. The edge of the seat cushion skeleton is installed with the assembly base through bolts, the assembly base is connected with the clamping member above, the clamping portion is placed above the clamping member, and the backrest skeleton is installed above the clamping portion through bolts.

[0015] Preferably, the adjusting assembly includes a pressing head, a connecting plate, a return spring, a connecting housing, a push rod, and a pressing block. The connecting plate is installed below the pressing head, a return spring is provided on the side of the connecting plate away from the pressing head, the connecting housing is installed below the return spring, the push rod is provided below the connecting housing, and the pressing block is installed below the push rod through bolts.

[0016] The using method of the magnetic adsorption type headrest structure for interchangeable automobile seats, the using method includes the following steps:

[0017] Step 1: First, connect the seat cushion skeleton and the backrest skeleton of the folding seat through the clamping member and the clamping portion on the assembly base to form a folding structure of the seat. Then, attach two pieces of sound-absorbing rubber sheets to the fitting surface of the second connection assembly and the backrest skeleton. Then, attach the second connection assembly to the outer surface of the backrest skeleton. Place the installation screw into the installation ear and fix the second connection assembly above the backrest skeleton by rotating the installation screw.

[0018] Step 2: Before attaching the first connection assembly to the outer surface of the backrest skeleton, assemble the first connection assembly. Clamp two groups of neodymium iron boron adsorption magnetic sheets on the inner wall of the first installation shell. Then, clamp the annular magnetic adsorption ring between the two groups of neodymium iron boron adsorption magnetic sheets. Insert the fixing screw into the groove and make the neodymium iron boron adsorption magnetic sheet fit with the fixing screw. Then, attach the sealing shell to the groove of the first installation shell.

[0019] Step 3: Then, place the fitting gasket on the outer surface of the insertion protrusion of the second installation shell. Then, pass the magnet adsorption fitting ring through the fitting connection column and the adsorption connection column respectively. Pass the fitting connection column through the fitting gasket and place the fitting connection column into the first installation hole of the second installation shell. Tighten the fitting connection column by inserting a nut.

[0020] Step 4: Then attach the assembled first connection component to the assembly surface of the replaceable lumbar pillow. Then, pass the stud through the fixing hole to complete the installation of the first connection component.

[0021] Step 5: Then wrap the outer surface of the seat frame with a leather cover, pass the corresponding leather cover holes through the second connection component, and then install the adjustment component above the engaging part to complete the assembly of the folding seat.

[0022] Step 6: Then, when using the replaceable lumbar pillow and the replaceable headrest of the car seat, attach the second connection component connected to the replaceable lumbar pillow to the first connection component of the folding seat, and align the first positioning protrusion and positioning groove, as well as the insertion protrusion and insertion groove, of the second connection component and the first connection component. Finally, align the anti-detachment plug and the socket sleeve, and engage the second connection component and the first connection component to complete the assembly of the replaceable lumbar pillow and the replaceable headrest with the folding seat.

[0023] Step 7: Then, when replacing between the replaceable lumbar pillow and the replaceable headrest, press the rebound clamp on the anti-detachment plug to separate the corresponding second connection component and the first connection component for replacement.

[0024] Technical effects and advantages of the present application:

[0025] 1. Compared with the prior art, for the interchangeable magnetic adsorption type car seat headrest structure and its usage method of the present application, through the magnetic adsorption connection structure 4, the installation and disassembly of the replaceable lumbar pillow 2 and the replaceable headrest 3 can be realized, which is convenient for users to replace different types or comfort levels of headrests according to their own needs at any time. The first connection component 6 and the second connection component 7 are engaged through the insertion protrusion 20 and the insertion groove 19, the first positioning protrusion 15 and the positioning groove 14, and the magnetic adsorption of the neodymium iron boron adsorption magnet 16 and the annular magnetic adsorption ring 22, realizing the stable connection between the headrest and the seat, avoiding shaking or falling off during use. The replaceable lumbar pillow and headrest can meet the personalized comfort needs of different users, and the folding seat structure also increases the convenience and diversity of use.

[0026] 2. Compared with the prior art, for the interchangeable magnetic adsorption type car seat headrest structure and its usage method of the present application, during the design process of the magnetic adsorption connection structure, by adapting to the best comfort level of the seat backrest during use, the inclination surface position of the connection part between the magnetic adsorption connection structures 4 is adjusted to complete the fixation of the magnetic adsorption connection structure 4 during the merging process, so as to prevent the detachment of the magnetic adsorption part during driving when a collision occurs. Description of the Drawings

[0027] Figure 1 It is the overall structure schematic diagram of the present application;

[0028] Figure 2 Schematic structural diagram of the second connection component of this application;

[0029] Figure 3 Schematic structural diagram of the magnetic connection structure of this application;

[0030] Figure 4 Front view structural diagram of the installation screw of this application;

[0031] Figure 5 Left view sectional structural diagram of the insertion protrusion of this application;

[0032] Figure 6 Rear view structural diagram of the soundproof rubber sheet of this application;

[0033] Figure 7 Top view structural diagram of the anti - detachment plug of this application;

[0034] Figure 8 Schematic structural diagram of the fitting connection column of this application;

[0035] Figure 9 Schematic structural diagram of the seat cushion frame of this application;

[0036] Figure 10 Schematic structural diagram of the replaceable lumbar pillow of this application;

[0037] Figure 11 Schematic structural diagram of the adjustment component of this application.

[0038] Reference numerals are: 1, folding seat; 101, seat cushion frame; 102, assembly base; 103, engaging part; 104, engaging portion; 105, backrest frame; 2, replaceable lumbar pillow; 3, replaceable headrest; 4, magnetic connection structure; 5, adjustment component; 6, first connection component; 601, first installation housing; 7, second connection component; 701, second installation housing; 8, fixing hole; 9, first installation hole; 10, second installation hole; 11, fixing screw; 12, installation screw; 13, installation ear; 14, positioning groove; 15, first positioning protrusion; 16, neodymium iron boron adsorption magnetic sheet; 17, magnet adsorption fitting ring; 18, connection gasket; 19, insertion slot; 20, insertion protrusion; 21, sealing shell; 22, annular magnetic adsorption ring; 23, soundproof rubber sheet; 24, anti - detachment plug; 25, insertion sleeve; 26, resilient clamp; 27, adsorption connection column; 28, fitting connection column; 29, fitting gasket; 30, pressing head; 31, connecting plate; 32, return spring; 33, connection housing; 34, push rod; 35, pressing block. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application. Embodiment 1

[0040] As shown in the attached Figures 1 to 11 An interchangeable magnetic adsorption headrest structure for a car seat, including a folding seat 1 and a magnetic adsorption connection structure 4. A replaceable lumbar pillow 2 is installed at the backrest part of the folding seat 1, and a replaceable headrest 3 is arranged above the replaceable lumbar pillow 2. A magnetic adsorption connection structure 4 is arranged between the folding seat 1 and the replaceable lumbar pillow 2. The magnetic adsorption connection structure 4 includes a first connection component 6 and a second connection component 7. A second connection component 7 is arranged on the side of the first connection component 6 away from the folding seat 1. An adjustment component 5 is installed at the edge of the folding seat 1 through bolts. Among them, the interchangeable magnetic adsorption headrest structure of this car seat is mainly composed of a folding seat 1 and a magnetic adsorption connection structure 4. A replaceable lumbar pillow 2 and a replaceable headrest 3 are installed at the backrest part of the folding seat 1. The stable connection and convenient replacement of the headrest and the seat are realized through the magnetic adsorption connection structure 4. In the existing use process of the headrest, due to different use effects of the headrest, the headrest will have various effects to facilitate the driver sitting on the seat. Then, during the use of the headrest, because during driving, different headrests have different effects, and during the normal use of the headrest, it cannot be replaced, thus affecting the use of the headrest. Through the magnetic adsorption connection structure 4, the installation and disassembly of the replaceable lumbar pillow 2 and the replaceable headrest 3 can be realized, which is convenient for users to replace different types or comfort levels of headrests according to their own needs at any time. The first connection component 6 and the second connection component 7 are stably connected to the seat through the engagement of the insertion protrusion 20 and the insertion groove 19, the first positioning protrusion 15 and the positioning groove 14, and the magnetic adsorption of the neodymium iron boron adsorption magnetic sheet 16 and the annular magnetic adsorption ring 22, avoiding shaking or falling off during use. The replaceable lumbar pillow and headrest can meet the personalized comfort needs of different users, and the structure of the folding seat 1 also increases the convenience and diversity of use. Embodiment 2

[0041] On the basis of Embodiment 1, the solution in Embodiment 1 will be further refined and introduced in combination with the following specific working methods, as Figures 1 to 11 shown, for details, see the following description:

[0042] As a preferred embodiment, the first connecting component 6 includes a first mounting housing 601, fixing holes 8, first mounting holes 9, second mounting holes 10, insertion protrusions 20 and anti-detachment plug joints 24. Fixing holes 8 are provided on the four sides of the first mounting housing 601. Two groups of first mounting holes 9 penetrate through the inner wall of the first mounting housing 601. A second mounting hole 10 is provided between the two groups of first mounting holes 9. An insertion protrusion 20 is provided on the side of the first mounting housing 601 away from the replaceable lumbar support 2. An anti-detachment plug joint 24 is provided above the insertion protrusion 20. Among them, the fixing holes 8 provided on the four sides of the first mounting housing 601 are used for installation and fixation. Then, the two groups of first mounting holes 9 and the second mounting hole 10 penetrating through the inner wall of the first mounting housing 601 are used for the installation of internal components. The insertion protrusion 20 provided away from the replaceable lumbar support 2 has an anti-detachment plug joint 24 above it, which is used to connect with the second connecting component 7 and prevent detachment. Among them, the insertion protrusion 20 provided on the first mounting housing 601 in the first connecting component 6 is designed with a 3° horizontal inclination. During the design process, through the inclined surface provided at the insertion position between the first connecting component 6 and the second connecting component 7, because the frictional force is proportional to the pressure and the coefficient of friction of the contact surface. In the insertion structure, the inclination angle of the contact surface will affect the pressure distribution, thereby changing the magnitude of the frictional force. Therefore, during the design process, by designing the inclination angle, the frictional force between the first connecting component 6 and the second connecting component 7 is increased, and the normal pressure of the contact surface is increased, thereby increasing the frictional force. And according to the tribology principle, the frictional force F can be expressed as: F = μ * N, where: μ is the coefficient of friction, and N is the normal pressure. In the case of the inclination angle θ, the normal pressure N can be expressed as: N = W * cos(θ), where W is the weight of the object. Therefore, the frictional force F becomes: F = μ * W * cos(θ). Therefore, when the inclination angle θ increases, cos(θ) decreases, resulting in a decrease in the frictional force F. And the optimal angle of the seat back is usually between 100° and 125°. This angle can provide good lumbar support and reduce fatigue during driving. Therefore, during the design process of the magnetic attraction connection structure 4, by adapting to the optimal comfort of the seat back during use, the position of the inclined surface at the connection part of the magnetic attraction connection structure 4 is adjusted to complete the fixation of the magnetic attraction connection structure 4 during the merging process, so as to prevent the detachment of the magnetic attraction part during driving when a collision occurs.

[0043] As a preferred embodiment, the second connection component 7 includes a second installation housing 701, mounting ears 13, neodymium iron boron adsorption magnetic sheets 16, a plug-in groove 19, an annular magnetic adsorption ring 22, a plug-in sleeve 25, and mounting screws 12. Mounting ears 13 are provided on both sides of the second installation housing 701, a plug-in groove 19 is provided between the two groups of mounting ears 13, two groups of neodymium iron boron adsorption magnetic sheets 16 are clamped at the inner wall edge of the plug-in groove 19, and an annular magnetic adsorption ring 22 is installed between the two groups of neodymium iron boron adsorption magnetic sheets 16. A plug-in sleeve 25 is provided above the second installation housing 701, and mounting screws 12 penetrate through the inner wall of the mounting ears 13. And the experimental data of simulating the impact on the seat shows that when it is tilted by 3°, the probability of magnetic adsorption shedding can be increased by 18% - 22%, and when it is tilted by 5°, the magnetic adsorption shedding is increased by 30% - 35%. This attenuation of magnetic adsorption is due to: the pre-tightening force increases by about 2 - 5 kN / ° due to the tilt, the contact surface slip decreases by 0.02 - 0.05 mm / °, and the stress relaxation rate decreases, increasing by 15% - 25%. And the stability collision simulation under dynamic load shows that the composite inclined structure performs under impact load, where the displacement amplitude decreases by 23% - 35%, and the fatigue life is reduced to 60% - 75% of the standard structure. At the same time, during the magnetic adsorption process, the annular magnetic adsorption ring 22 is used to connect with the adsorption connection column 27. By inserting the adsorption connection column 27 into the inside of the annular magnetic adsorption ring 22, the magnetic adsorption area is increased, thereby increasing the magnetic adsorption area. And during the plug-in process between the two, the accuracy of the connection between the first connection component 6 and the second connection component 7 of the magnetic adsorption connection structure 4 is maintained.

[0044] As a preferred embodiment, first positioning protrusions 15 are provided on all four sides of the plug-in protrusion 20, positioning grooves 14 are provided on all four sides of the inner wall of the plug-in groove 19, the first connection component 6 and the second connection component 7 are connected through the plug-in protrusion 20 and the plug-in groove 19, and the plug-in protrusion 20 and the plug-in groove 19 are engaged through the first positioning protrusions 15 and the positioning grooves 14. And the accommodation hole provided on the back of the first connection component 6 is magnetically adsorbed by fitting with the fitting connection column 28 in the second connection component 7 by embedding a neodymium iron boron adsorption magnetic sheet 16 into it. And by using two groups of neodymium iron boron adsorption magnetic sheets 16 and the annular magnetic adsorption ring 22 and the adsorption connection column 27 for adsorption, and the measured data shows that the magnetic adsorption force of a single contact point can reach 25 - 30 N, and the total adsorption force exceeds 100 N when the contact area is 7 cm².

[0045] As a preferred embodiment, the second connection component 7 further includes an adsorption connection column 27, a fitting connection column 28, and a fitting gasket 29. A fitting connection column 28 is installed between the two groups of adsorption connection columns 27, and a fitting gasket 29 is provided on the side of the fitting connection column 28 away from the second installation housing 701.

[0046] As a preferred embodiment, two sets of fixing screws 11 are arranged above the first installation housing 601, a sealing shell 21 is installed between the two sets of fixing screws 11 and the annular magnetic adsorption ring 22, silent rubber sheets 23 are arranged on both sides of the sealing shell 21, and the vibration frequency during driving is reduced through the attached silent rubber sheets 23.

[0047] As a preferred embodiment, a return spring clamp 26 is arranged above the anti-drop plug connector 24. When the first connection assembly 6 and the second connection assembly 7 are combined, the anti-drop plug connector 24 and the socket 25 form a clamping structure through the return spring clamp 26. The fitting connection column 28 includes a magnetic adsorption fitting ring piece 17 and a connection gasket 18. A connection gasket 18 is arranged on the side of the magnetic adsorption fitting ring piece 17 away from the second connection assembly 7. Meanwhile, during the magnetic adsorption process, when the anti-drop plug connector 24 is connected to the socket 25, the first connection assembly 6 and the second connection assembly 7 in the magnetic adsorption connection structure 4 obtain additional locking force to protect the stability of the connection of the magnetic adsorption connection structure 4.

[0048] As a preferred embodiment, the folding seat 1 includes a seat cushion frame 101, an assembly base 102, a clamping part 103, a clamping portion 104 and a backrest frame 105. The edge of the seat cushion frame 101 is installed with the assembly base 102 through bolts, the assembly base 102 is connected with the clamping part 103 above it, the clamping portion 104 is placed above the clamping part 103, and the backrest frame 105 is installed above the clamping portion 104 through bolts.

[0049] As a preferred embodiment, the adjusting assembly 5 includes a pressing head 30, a connecting plate 31, a return spring 32, a connecting housing 33, a push rod 34 and a pressing block 35. The connecting plate 31 is installed below the pressing head 30, a return spring 32 is arranged on the side of the connecting plate 31 away from the pressing head 30, the connecting housing 33 is installed below the return spring 32, the push rod 34 is arranged below the connecting housing 33, and the pressing block 35 is installed below the push rod 34 through bolts. By pressing the pressing head 30 to press the connecting plate 31, the connecting plate 31 drives the return spring 32 to move downward, and drives the push rod 34 below the connecting housing 33 to move, so that the push rod 34 pushes the pressing block 35 to move, and the push rod 34 drives the clamping part 103 to move downward to adjust the inclined surface of the folding seat 1.

[0050] The usage method of the magnetic adsorption type headrest structure for interchangeable vehicle seats includes the following steps:

[0051] Step 1: First, connect the seat cushion frame 101 and the backrest frame 105 of the folding seat 1 through the engaging parts 103 and the engaging portions 104 on the assembling base 102 to form the folding structure of the seat. Then, attach two silent rubber sheets 23 to the joint surface of the second connecting component 7 and the backrest frame 105, and then attach the second connecting component 7 to the outer surface of the backrest frame 105. Place the mounting screw 12 into the interior of the mounting ear 13, and by rotating the mounting screw 12, fix the second connecting component 7 above the backrest frame 105;

[0052] Step 2: Before attaching the first connecting component 6 to the outer surface of the backrest frame 105, assemble the first connecting component 6. Engage two groups of neodymium iron boron adsorption magnets 16 on the inner wall of the first mounting housing 601, then engage the annular magnetic adsorption ring 22 between the two groups of neodymium iron boron adsorption magnets 16, insert the fixing screw 11 into the groove, and make the neodymium iron boron adsorption magnet 16 fit with the fixing screw 11. Then, attach the sealing shell 21 to the groove of the first mounting housing 601;

[0053] Step 3: Then, place the fitting gasket 29 on the outer surface of the insertion protrusion 20 of the second mounting housing 701. Then, pass the magnet adsorption fitting ring piece 17 through the fitting connecting column 28 and the adsorption connecting column 27 respectively, and pass the fitting connecting column 28 through the fitting gasket 29, and place the fitting connecting column 28 into the first mounting hole 9 of the second mounting housing 701, and tighten the fitting connecting column 28 by inserting a nut;

[0054] Step 4: Then, attach the assembled first connecting component 6 to the assembling surface of the replaceable lumbar support 2, and then install the first connecting component 6 by passing bolts through the fixing holes 8;

[0055] Step 5: Then, wrap the outer surface of the seat frame with a leather cover, pass the corresponding leather cover holes through the second connecting component 7, and then install the adjusting component 5 above the engaging portion 104 to complete the assembly of the folding seat 1;

[0056] Step 6: When using the replaceable lumbar support 2 and the replaceable headrest 3 of the car seat, attach the second connecting component 7 connected to the replaceable lumbar support 2 to the first connecting component 6 of the folding seat 1, and align the first positioning protrusion 15 and the positioning groove 14, as well as the insertion protrusion 20 and the insertion groove 19 of the second connecting component 7 and the first connecting component 6. Finally, align the anti - detachment plug joint 24 and the insertion sleeve 25, and engage the second connecting component 7 and the first connecting component 6 to complete the assembly of the replaceable lumbar support 2 and the replaceable headrest 3 with the folding seat 1;

[0057] Step 7: When replacing between the replaceable lumbar pillow 2 and the replaceable headrest 3, press the resilient clamp 26 on the anti-drop plug connector 24 to separate the corresponding second connection assembly 7 and the first connection assembly 6, and then perform the replacement.

[0058] The working process of this application is as follows: First, connect the seat cushion frame 101 and the backrest frame 105 of the folding seat 1 through the assembly base 102. As a preferred embodiment, connect them through the engaging member 103 and the engaging portion 104 on the 02 to form the folding structure of the seat. Then, attach two sound-absorbing rubber sheets 23 to the fitting surface of the second connection assembly 7 and the backrest frame 105. Then, attach the second connection assembly 7 to the outer surface of the backrest frame 105. Place the mounting screw 12 into the interior of the mounting ear 13 and rotate the mounting screw 12 to fix the second connection assembly 7 above the backrest frame 105.

[0059] Before attaching the first connection assembly 6 to the outer surface of the backrest frame 105, assemble the first connection assembly 6. Snap two sets of neodymium iron boron adsorption magnets 16 onto the inner wall of the first mounting housing 601. Then, snap the annular magnetic adsorption ring 22 between the two sets of neodymium iron boron adsorption magnets 16. Insert the fixing screw 11 into the groove and make the neodymium iron boron adsorption magnet 16 fit with the fixing screw 11. After that, attach the sealing shell 21 to the groove of the first mounting housing 601.

[0060] Then, place the fitting gasket 29 on the outer surface of the insertion protrusion 20 of the second mounting housing 701. Then, pass the magnet adsorption fitting ring piece 17 through the fitting connection column 28 and the adsorption connection column 27 respectively. Pass the fitting connection column 28 through the fitting gasket 29 and place the fitting connection column 28 into the first mounting hole 9 of the second mounting housing 701, and tighten the fitting connection column 28 by inserting a nut.

[0061] Then, attach the assembled first connection assembly 6 to the assembly surface of the replaceable lumbar pillow 2, and then pass the stud through the fixing hole 8 to complete the installation of the first connection assembly 6.

[0062] Then, wrap the outer surface of the seat frame with a leather cover, pass the corresponding leather cover holes through the second connection assembly 7, and then install the adjusting assembly 5 above the engaging portion 104 to complete the assembly of the folding seat 1.

[0063] Then, when using the replaceable lumbar pillow 2 and the replaceable headrest 3 of the vehicle seat, the second connection component 7 connected to the replaceable lumbar pillow 2 is fitted with the first connection component 6 of the folding seat 1, and the first positioning protrusion 15 and the positioning groove 14, as well as the insertion protrusion 20 and the insertion groove 19 of the second connection component 7 and the first connection component 6 are aligned. Finally, the anti-drop plug connector 24 and the plug socket 25 are corresponding, and the second connection component 7 and the first connection component 6 are clamped together to complete the assembly of the replaceable lumbar pillow 2 and the replaceable headrest 3 with the folding seat 1;

[0064] Then, when replacing between the replaceable lumbar pillow 2 and the replaceable headrest 3, by pressing the rebound clamp 26 on the anti-drop plug connector 24, the corresponding second connection component 7 and the first connection component 6 are separated and replaced. The above is the working principle of the interchangeable magnetic absorption headrest structure of a vehicle seat and its usage method.

Claims

1. A magnetic-absorbing type headrest structure for interchange of automobile seats, comprising a folding seat (1) and a magnetic-absorbing connection structure (4), characterized in that: A replaceable lumbar pillow (2) is installed on the backrest part of the folding seat (1), and a replaceable headrest (3) is arranged above the replaceable lumbar pillow (2). A magnetic connection structure (4) is arranged between the folding seat (1) and the replaceable lumbar pillow (2). The magnetic connection structure (4) includes a first connection component (6) and a second connection component (7). The second connection component (7) is arranged on the side of the first connection component (6) away from the folding seat (1). An adjusting component (5) is installed at the edge of the folding seat (1) through bolts. The first connection component (6) includes a first installation housing (601), fixing holes (8), first installation holes (9), second installation holes (10), insertion protrusions (20) and anti-detachment plug connectors (24). Fixing holes (8) are arranged on the four sides of the first installation housing (601). Two groups of first installation holes (9) are arranged through the inner wall of the first installation housing (601). A second installation hole (10) is arranged between the two groups of first installation holes (9). An insertion protrusion (20) is arranged on the side of the first installation housing (601) away from the replaceable lumbar pillow (2). An anti-detachment plug connector (24) is arranged above the insertion protrusion (20). The second connection component (7) includes a second installation housing (701), installation ears (13), neodymium iron boron adsorption magnetic sheets (16), insertion grooves (19), annular magnetic adsorption rings (22), insertion sleeves (25) and installation screws (12). Installation ears (13) are arranged on both sides of the second installation housing (701). An insertion groove (19) is arranged between the two groups of installation ears (13). Two groups of neodymium iron boron adsorption magnetic sheets (16) are clamped at the inner wall edge of the insertion groove (19). An annular magnetic adsorption ring (22) is installed between the two groups of neodymium iron boron adsorption magnetic sheets (16). An insertion sleeve (25) is arranged above the second installation housing (701). Installation screws (12) are connected through the inner walls of the installation ears (13).

2. The magnetic suction type headrest structure for interchangeable vehicle seats according to claim 1, characterized in that: First positioning protrusions (15) are arranged on the four sides of the insertion protrusion (20). Positioning grooves (14) are arranged on the four sides of the inner wall of the insertion groove (19). The first connection component (6) and the second connection component (7) are connected through the insertion protrusion (20) and the insertion groove (19). The insertion protrusion (20) and the insertion groove (19) are clamped through the first positioning protrusions (15) and the positioning grooves (14). The insertion protrusion (20) and the insertion groove (19) are inclined 3° along the horizontal plane.

3. The magnetic-absorbing headrest structure for interchangeable automotive seats according to claim 1, wherein: The second connection component (7) further includes adsorption connection columns (27), fitting connection columns (28) and fitting gaskets (29). A fitting connection column (28) is installed between the two groups of adsorption connection columns (27). A fitting gasket (29) is arranged on the side of the fitting connection column (28) away from the second installation housing (701).

4. The magnetic adsorption type headrest structure for interchangeable automotive seats according to claim 1, characterized in that: Above the first installation housing (601), there are two groups of fixing screws (11), and between the two groups of fixing screws (11) and the annular magnetic adsorption ring (22), there is a sealing shell (21), and on both sides of the sealing shell (21), there are silent rubber sheets (23).

5. The magnetic suction type headrest structure for interchangeable car seats according to claim 3, characterized in that: Above the anti - detachment plug connector (24), there is a rebounding clamp (26). When the first connection component (6) and the second connection component (7) are combined, the anti - detachment plug connector (24) and the socket (25) form a clamping structure through the rebounding clamp (26). The fitting connection column (28) includes a magnetic adsorption fitting ring piece (17) and a connection gasket (18), and on the side of the magnetic adsorption fitting ring piece (17) away from the second connection component (7), there is a connection gasket (18).

6. The magnetic adsorption type headrest structure for interchangeable automobile seats according to claim 1, wherein: The folding seat (1) includes a seat cushion frame (101), an assembly base (102), a clamping part (103), a clamping portion (104), and a backrest frame (105). At the edge of the seat cushion frame (101), the assembly base (102) is installed through bolts. Above the assembly base (102), there is a clamping part (103) connected. Above the clamping part (103), there is a clamping portion (104) placed, and above the clamping portion (104), the backrest frame (105) is installed through bolts.

7. The magnetic absorption type headrest structure for interchangeable vehicle seats according to claim 1, wherein: The adjusting component (5) includes a pressing head (30), a connecting plate (31), a return spring (32), a connecting housing (33), a push rod (34), and a pressing block (35). Below the pressing head (30), there is a connecting plate (31) installed. On the side of the connecting plate (31) away from the pressing head (30), there is a return spring (32). Below the return spring (32), there is a connecting housing (33) installed. Below the connecting housing (33), there is a push rod (34), and below the push rod (34), the pressing block (35) is installed through bolts.

8. Method of using the magnetic adsorption headrest structure for interchangeable automotive seats, which applies an interchangeable magnetic adsorption headrest structure for automotive seats described in any one of claims 1-7, characterized in that: The usage method includes the following steps: Step 1: First, connect the seat cushion frame (101) and the backrest frame (105) of the folding seat (1) through the clamping part (103) and the clamping portion (104) on the assembly base (102) to form the folding structure of the seat. Then, at the joint surface between the second connection component (7) and the backrest frame (105), fit two silent rubber sheets (23). Then, fit the second connection component (7) on the outer surface of the backrest frame (105). Put the installation screw (12) into the installation ear (13), and by rotating the installation screw (12), fix the second connection component (7) above the backrest frame (105). Step 2: Before fitting the first connecting component (6) to the outer surface of the backrest frame (105), assemble the first connecting component (6). Snap two sets of neodymium iron boron adsorption magnets (16) onto the inner wall of the first mounting housing (601). Then snap the annular magnetic adsorption ring (22) between the two sets of neodymium iron boron adsorption magnets (16). Insert the fixing screw (11) into the groove and make the neodymium iron boron adsorption magnet (16) fit against the fixing screw (11). After that, fit the sealing shell (21) into the groove of the first mounting housing (601). Step 3: Then place the fitting gasket (29) on the outer surface of the insertion protrusion (20) of the second mounting housing (701). Then pass the magnet adsorption fitting ring (17) through the fitting connection post (28) and the adsorption connection post (27) respectively. Pass the fitting connection post (28) through the fitting gasket (29) and place the fitting connection post (28) inside the first mounting hole (9) of the second mounting housing (701). Tighten the fitting connection post (28) by inserting a nut. Step 4: Then fit the assembled first connecting component (6) onto the assembly surface of the replaceable lumbar support (2). Then pass a stud through the fixing hole (8) to complete the installation of the first connecting component (6). Step 5: Then wrap the outer surface of the seat frame with a leather cover. Pass the corresponding leather cover holes through the second connecting component (7). Then install the adjustment component (5) above the engaging part (104) to complete the assembly of the folding seat (1). Step 6: Then when using the replaceable lumbar support (2) and the replaceable headrest (3) of the car seat, fit the second connecting component (7) connected to the replaceable lumbar support (2) with the first connecting component (6) of the folding seat (1). Align the first positioning protrusion (15) and the positioning groove (14), as well as the insertion protrusion (20) and the insertion groove (19) of the second connecting component (7) and the first connecting component (6). Finally, align the anti-detachment plug (24) and the insertion sleeve (25), and snap the second connecting component (7) and the first connecting component (6) together to complete the assembly of the replaceable lumbar support (2) and the replaceable headrest (3) with the folding seat (1). Step 7: Then when replacing between the replaceable lumbar support (2) and the replaceable headrest (3), press the rebound clamp (26) on the anti-detachment plug (24) to separate the corresponding second connecting component (7) and the first connecting component (6) for replacement.

Images