Interchangeable magnetic type back cushion structure of automobile seat and use method of interchangeable magnetic type back cushion structure

Abstract

The invention discloses an automobile seat interchangeable magnetic type back cushion structure and a using method thereof, and particularly relates to the technical field of automobile seat accessories, the automobile seat interchangeable magnetic type back cushion structure comprises a folding seat and a magnetic connecting structure, a replaceable waist pillow is mounted at the backrest part of the folding seat, a replaceable head pillow is arranged above the replaceable waist pillow, and the magnetic connecting structure is connected with the replaceable head pillow. A magnetic attraction connecting structure is arranged between the folding seat and the replaceable waist pillow, the magnetic attraction connecting structure comprises a first connecting assembly and a second connecting assembly, and the second connecting assembly is arranged on the side, away from the folding seat, of the first connecting assembly. In the using process of the seat backrest, the position of the inclined face of the connecting portion between the magnetic attraction connecting structures is adjusted by adapting to the optimal comfort degree of the seat backrest, fixing of the magnetic attraction connecting structures in the combining process is completed, and the magnetic attraction portions are prevented from falling off when collision happens in the driving process.

Description

Technical Field

[0001] The present application relates to the technical field of automobile seat accessories, and more specifically, to an interchangeable magnetic cushion structure for automobile seats and a method for using the same. Background Art

[0002] During the use of car seats, the comfort of the pillows is crucial to the experience of the driver and passengers. Traditional car seat pillows are usually fixed structures, which are difficult to replace or adjust according to the needs of different users and cannot meet the diverse comfort needs. Some replaceable pillows have problems such as unstable connection and inconvenient installation and disassembly, which affects the actual user experience. Therefore, it is of great practical significance to develop a car seat pillow structure that is firmly connected, easy to replace and can improve comfort. After searching, the existing publication number: CN107458275A discloses a headrest fixing mechanism for a car seat; a base, a seat cushion arranged on the base, a backrest rotatably connected to the base, and a headrest arranged on the backrest; the top of the backrest is an inclined surface inclined away from the seat cushion, and a plurality of first magnets are arranged on the inner side of the inclined surface, and a second magnet corresponding to the plurality of first magnets is arranged on the back of the headrest. A headrest fixing mechanism for a car seat and a manufacturing process thereof, the mechanism design is reasonable, especially utilizing the mutual attraction of two magnets to install the headrest in an appropriate position, and at the same time, during the manufacturing process, the magnet is pre-treated, so that the magnetism of the magnet can be maintained longer, and it does not need to be replaced for 10 years of use. In the process of realizing this application, the inventor found that the prior art has the following problems: Some existing replaceable pillows have problems such as unstable connection and inconvenient installation and removal, which affect the actual user experience. However, when a magnetic structure is used to fix the pillow, when a collision occurs, the contact surface of the magnetic adsorption is often separated, causing the pillow to fall off. Therefore, in order to solve the above problems, a magnetic cushion structure for interchangeable automobile seats and a method for using the same are proposed. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present application provides an interchangeable magnetic cushion structure for automobile seats and a method of using the same to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned objectives, the present application provides the following technical solutions: an interchangeable magnetic headrest structure for a car seat, comprising a folding seat and a magnetic connection structure, wherein a replaceable lumbar pillow is installed on the backrest of the folding seat, and a replaceable headrest is arranged above the replaceable lumbar pillow, and a magnetic connection structure is arranged between the folding seat and the replaceable lumbar pillow, wherein the magnetic connection structure comprises a first connection component and a second connection component, and a second connection component is arranged on the side of the first connection component away from the folding seat, and an adjustment component is installed at the edge of the folding seat by bolts.

[0005] Preferably, the first connecting component includes a first mounting shell, a fixing hole, a first mounting hole, a second mounting hole, a plug-in protrusion and an anti-drop-out plug connector, and the four sides of the first mounting shell are provided with fixing holes, and the inner wall of the first mounting shell is penetrated with two groups of first mounting holes, and a second mounting hole is provided between the two groups of first mounting holes, and a plug-in protrusion is provided on the side of the first mounting shell away from the replaceable lumbar pillow, and an anti-drop-out plug connector is provided above the plug-in protrusion.

[0006] Preferably, the second connecting component includes a second mounting shell, mounting ears, NdFeB adsorption magnetic sheets, plug-in slots, annular magnetic adsorption rings, plug-in sleeves and mounting screws, and mounting ears are provided on both sides of the second mounting shell, and a plug-in slot is provided between the two groups of the mounting ears, and two groups of NdFeB adsorption magnetic sheets are contained at the inner wall edge of the plug-in slot, and an annular magnetic adsorption ring is installed between the two groups of NdFeB adsorption magnetic sheets, and a plug-in sleeve is provided on the top of the second mounting shell, and the inner wall of the mounting ear is penetrated by the mounting screws.

[0007] Preferably, the four sides of the plug-in protrusion are all provided with a first positioning protrusion, and the four sides of the inner wall of the plug-in groove are all provided with positioning grooves, and the first connecting component and the second connecting component are connected through the plug-in protrusion and the plug-in groove, and the plug-in protrusion and the plug-in groove are clamped together through the first positioning protrusion and the positioning groove, and the plug-in protrusion and the plug-in groove are inclined 3° along the horizontal plane.

[0008] Preferably, the second connection assembly further includes an adsorption connection column, a fitting connection column and a fitting gasket, and a fitting connection column is installed between the two groups of the adsorption connection columns, and a fitting gasket is arranged on the side of the fitting connection column away from the second installation shell.

[0009] Preferably, two groups of fixing screws are arranged above the first mounting shell, and a sealing shell is installed between the two groups of fixing screws and the annular magnetic adsorption ring, and sound-proof rubber sheets are arranged on both sides of the sealing shell.

[0010] Preferably, a rebound clamp is arranged above the anti-dropping plug connector, and when the first connecting component and the second connecting component are combined, the anti-dropping plug connector and the plug sleeve form a clamping structure through the rebound clamp, the fitting connecting column includes a magnetic adsorption fitting ring and a connecting gasket, and a connecting gasket is arranged on the side of the magnetic adsorption fitting ring away from the second connecting component.

[0011] Preferably, the folding seat includes a seat cushion frame, an assembling base, a clamping piece, a clamping portion and a backrest frame, and the assembling base is installed at the edge of the seat cushion frame by bolts, and the clamping piece is connected to the top of the assembling base, and the clamping portion is placed above the clamping piece, and the backrest frame is installed above the clamping portion by bolts.

[0012] Preferably, the adjusting assembly includes a pressing head, a connecting plate, a return spring, a connecting shell, a pushing rod and a pressing block, and a connecting plate is installed below the pressing head, and a return spring is provided on the side of the connecting plate away from the pressing head, and a connecting shell is installed below the return spring, and a pushing rod is provided below the connecting shell, and a pressing block is installed below the pushing rod by bolts.

[0013] A method for using a magnetic cushion structure for an interchangeable automobile seat, the method comprising the following steps: Step 1: First, the seat cushion frame and the backrest frame of the folding seat are connected through the clamping pieces and the clamping parts on the assembly base to form a folding structure of the seat, and then the second connecting component is attached to the bonding surface of the backrest frame by two silent rubber sheets, and then the second connecting component is attached to the outer surface of the backrest frame, and the second connecting component is fixed on the top of the backrest frame by inserting the mounting screws into the inside of the mounting ears and rotating the mounting screws; Step 2: Before the first connecting component is attached to the outer surface of the backrest frame, the first connecting component is assembled, the two groups of NdFeB adsorption magnetic sheets are clamped on the inner wall of the first mounting shell, and then the annular magnetic adsorption ring is clamped between the two groups of NdFeB adsorption magnetic sheets, and the fixing screws are inserted into the grooves, and the NdFeB adsorption magnetic sheets are attached to the fixing screws, and then the sealing shell is attached to the groove of the first mounting shell; Step 3: Then place the fitting gasket on the outer surface of the plug-in protrusion of the second mounting shell, and then pass the magnet adsorption fitting ring through the fitting connection column and the adsorption connection column respectively, and pass the fitting connection column through the fitting gasket, and put the fitting connection column into the first mounting hole of the second mounting shell, and tighten the fitting connection column by inserting a nut; Step 4: Then attach the assembled first connecting component to the assembly surface of the replaceable lumbar pillow, and then use the studs to pass through the fixing holes to complete the installation of the first connecting component; Step 5: Then wrap the outer surface of the seat frame with a leather cover, pass the corresponding holes of the leather cover through the second connecting component, and then install the adjustment component above the clamping part, thereby completing the assembly of the folding seat; Step 6: When using the replaceable lumbar pillow and replaceable headrest of the car seat, fit the second connecting component connected to the replaceable lumbar pillow with the first connecting component of the folding seat, and align the first positioning protrusions and positioning grooves of the second connecting component and the first connecting component, as well as the plug-in protrusions and the plug-in grooves, and finally align the anti-dropping plug connector and the plug-in sleeve, and engage the second connecting component with the first connecting component to complete the assembly of the replaceable lumbar pillow and the replaceable headrest with the folding seat; Step 7: When replacing between the replaceable lumbar pillow and the replaceable headrest, press the rebound clamp on the anti-drop connector to separate the corresponding second connecting component and the first connecting component, and then replace them.

[0014] Technical effects and advantages of this application: 1. Compared with the prior art, the interchangeable magnetic cushion structure of a car seat and the method of using the same can realize the installation and removal of the replaceable lumbar pillow 2 and the replaceable headrest 3 through the magnetic connection structure 4, so that users can replace cushions of different types or comfort levels at any time according to their own needs. The first connecting component 6 and the second connecting component 7 realize the firm connection between the cushion and the seat through the engagement of the plug-in protrusion 20 with the plug-in groove 19, the first positioning protrusion 15 with the positioning groove 14, and the magnetic adsorption of the NdFeB adsorption magnetic sheet 16 and the annular magnetic adsorption ring 22, thereby 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.

[0015] 2. Compared with the prior art, this kind of interchangeable magnetic cushion structure for automobile seats and its use method, through the design process of the magnetic connection structure, by adjusting the inclined surface position of the connection part between the magnetic connection structure 4 according to the optimal comfort of the seat back during use, completes the fixation of the magnetic connection structure 4 during the merging process, and prevents the magnetic part from falling off when a collision occurs during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the structure of the second connection component of the present application; Figure 3 This is a schematic diagram of the structure of the magnetic connection structure of the present application; Figure 4 This is a front view structural diagram of the mounting screw of the present application; Figure 5 It is a schematic diagram of the left side cross-sectional structure of the plug-in protrusion of the present application; Figure 6 This is a schematic diagram of the rear structure of the silent rubber sheet of the present application; Figure 7 This is a schematic diagram of the top view of the anti-drop plug connector of the present application; Figure 8 This is a schematic diagram of the structure of the bonding connection column of the present application; Fig. 9 This is a schematic diagram of the structure of the seat cushion frame of the present application; Fig.10 This is a schematic diagram of the structure of the replaceable lumbar pillow of the present application; Fig.11 This is a schematic diagram of the structure of the regulating component of the present application.

[0017] The accompanying drawings are marked as follows: 1. folding seat; 101. seat cushion frame; 102. assembly base; 103. snap-fitting piece; 104. snap-fitting part; 105. backrest frame; 2. replaceable lumbar pillow; 3. replaceable headrest; 4. magnetic connection structure; 5. adjustment component; 6. first connection component; 601. first mounting shell; 7. second connection component; 701. second mounting shell; 8. fixing hole; 9. first mounting hole; 10. second mounting hole; 11. fixing screw; 12. mounting screw; 13. mounting ear; 14. positioning Groove; 15. First positioning protrusion; 16. NdFeB adsorption magnetic sheet; 17. Magnet adsorption bonding ring sheet; 18. Connecting gasket; 19. Plug-in groove; 20. Plug-in protrusion; 21. Sealing shell; 22. Annular magnetic adsorption ring; 23. Silent rubber sheet; 24. Anti-drop plug connector; 25. Plug-in sleeve; 26. Rebound clamp; 27. Adsorption connecting column; 28. Bonding connecting column; 29. ​​Bonding gasket; 30. Pressing head; 31. Connecting plate; 32. Reset spring; 33. Connecting shell; 34. Push rod; 35. Pressing block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. Example 1

[0019] As attached Figures 1 to 11The illustrated embodiment of an interchangeable magnetic backrest structure for a car seat comprises a folding seat 1 and a magnetic connection structure 4, wherein a replaceable lumbar pillow 2 is installed on the backrest of the folding seat 1, and a replaceable headrest 3 is arranged above the replaceable lumbar pillow 2, and a magnetic connection structure 4 is arranged between the folding seat 1 and the replaceable lumbar pillow 2, wherein the magnetic connection structure 4 comprises a first connection component 6 and a second connection component 7, and the second connection component 7 is arranged on the side of the first connection component 6 away from the folding seat 1, and an adjustment component 5 is installed at the edge of the folding seat 1 by bolts. The interchangeable magnetic cushion structure of the automobile seat is mainly composed of a folding seat 1 and a magnetic connection structure 4. A replaceable lumbar cushion 2 and a replaceable headrest 3 are installed on the backrest of the folding seat 1. The magnetic connection structure 4 is used to achieve a stable connection and convenient replacement of the cushion and the seat. Because the different use effects of the cushion during the use of the existing cushion will make the cushion have various effects, which is convenient for the driver to use when sitting on the seat. Then, during the use of the cushion, different cushions have different effects during driving, and the normal cushion cannot be replaced during use. The use of the pillow can be affected by the magnetic connection structure 4, which can realize the installation and removal of the replaceable lumbar pillow 2 and the replaceable headrest 3, so that the user can replace the pillow of different types or comfort levels at any time according to their own needs. The first connecting component 6 and the second connecting component 7 are engaged with the plug-in protrusion 20 and the plug-in groove 19, the first positioning protrusion 15 and the positioning groove 14, and the magnetic adsorption of the NdFeB adsorption magnetic sheet 16 and the annular magnetic adsorption ring 22, so as to achieve a firm connection between the pillow and the seat to avoid 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 1 structure also increases the convenience and diversity of use. Example 2

[0020] Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working method. Figures 1 to 11 As shown, see the following description for details: As a preferred embodiment, the first connecting component 6 includes a first mounting shell 601, a fixing hole 8, a first mounting hole 9, a second mounting hole 10, a plug-in protrusion 20 and an anti-drop plug connector 24, and the four sides of the first mounting shell 601 are provided with fixing holes 8, and the inner wall of the first mounting shell 601 is penetrated with two groups of first mounting holes 9, and a second mounting hole 10 is provided between the two groups of first mounting holes 9, and a plug-in protrusion 20 is provided on the side of the first mounting shell 601 away from the replaceable lumbar pillow 2, and the plug-in protrusion 20 is provided on the inner wall of the first mounting shell 601. An anti-drop-off plug connector 24 is arranged above the protrusion 20, wherein the first mounting shell 601 is provided with fixing holes 8 on four sides for mounting and fixing, and then the two groups of first mounting holes 9 and second mounting holes 10 arranged through the inner wall of the first mounting shell 601 are used for installing the internal components, away from the plug-in protrusion 20 arranged on the replaceable lumbar pillow 2, and an anti-drop-off plug connector 24 is arranged above it for connecting with the second connecting component 7 and preventing it from falling off, wherein the plug-in protrusion 20 arranged on the first mounting shell 601 in the first connecting component 6 0, wherein the plug-in protrusion 20 is inclined 3° along the horizontal. In the design process, the inclined surface is set at the plug-in position between the first connecting component 6 and the second connecting component 7. Because the friction force is proportional to the pressure and friction coefficient of the contact surface, in the plug-in structure, the inclination angle of the contact surface will affect the pressure distribution, thereby changing the magnitude of the friction force. Therefore, in the design process, the friction force between the first connecting component 6 and the second connecting component 7 is increased by designing the inclination angle to increase the positive pressure of the contact surface, thereby increasing the friction force. According to the principle of tribology, the friction force F can be expressed as: F=μ*N, wherein: μ is the friction coefficient, N is the positive pressure, and in the case of the inclination angle θ, the positive pressure N can be expressed as: N=W*cos(θ), wherein W is the weight of the object, therefore, the friction force F becomes: F=μ*W*cos(θ), therefore, when the inclination angle θ increases, cos(θ) decreases, resulting in a decrease in the friction 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, the magnetic connection structure 4 adjusts the inclined surface position of the connecting part between the magnetic connection structures 4 by adapting the optimal comfort of the seat back during use, so as to complete the fixation of the magnetic connection structure 4 during the merging process and prevent the magnetic part from falling off when a collision occurs during driving.

[0021] As a preferred embodiment, the second connecting component 7 includes a second mounting shell 701, a mounting ear 13, a NdFeB adsorption magnetic sheet 16, a plug-in slot 19, an annular magnetic adsorption ring 22, a plug-in sleeve 25 and a mounting screw 12, and mounting ears 13 are provided on both sides of the second mounting shell 701, and a plug-in slot 19 is provided between the two groups of mounting ears 13, and the inner wall edge of the plug-in slot 19 contains two groups of NdFeB adsorption magnetic sheets 16, and an annular magnetic adsorption ring 22 is installed between the two groups of NdFeB adsorption magnetic sheets 16, and a plug-in sleeve 25 is provided above the second mounting shell 701, and the inner wall of the mounting ear 13 is penetrated and connected with a mounting screw 12, and experimental data of an impact simulated seat show that a 3° tilt can increase the probability of magnetic attraction shedding by 18% to 22%, and a 5° tilt can increase the probability of magnetic attraction shedding by 30% to 35%. The attenuation of magnetic adsorption is due to: the preload caused by tilting increases by about 2-5kN / °, while the contact surface slip decreases by 0.02-0.05mm / °, and the stress relaxation rate decreases by 15% to 25%. The stability collision simulation under dynamic load shows that the composite tilted structure performs well under impact load, with the displacement amplitude reduced by 23% to 35%, and the fatigue life reduced to 60% to 75% of the standard structure. At the same time, in the process of magnetic attraction, an annular magnetic adsorption ring 22 is used to connect with the adsorption connecting column 27. The adsorption connecting column 27 is inserted into the interior of the annular magnetic adsorption ring 22 to increase its magnetic attraction area, thereby increasing the magnetic attraction area, and through the plug-in process between the two, the accuracy of the first connection component 6 and the second connection component 7 of the magnetic connection structure 4 is maintained during the plug-in process.

[0022] As a preferred embodiment, the four sides of the plug-in protrusion 20 are all provided with a first positioning protrusion 15, and the four sides of the inner wall of the plug-in groove 19 are all provided with a positioning groove 14, and the first connecting component 6 and the second connecting 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 with the first positioning protrusion 15 and the positioning groove 14, and the accommodating hole set on the back side of the first connecting component 6 is magnetically attracted by embedding the neodymium iron boron adsorption magnetic sheet 16 inside, and is fitted with the fitting connecting column 28 in the second connecting component 7, and is adsorbed by adopting two groups of neodymium iron boron adsorption magnetic sheets 16 and the annular magnetic adsorption ring 22 and the adsorption connecting column 27, and the measured data show that the magnetic attraction force of a single contact point can reach 25-30N, and the total adsorption force exceeds 100N when the contact area is 7cm².

[0023] As a preferred embodiment, the second connecting component 7 also includes an adsorption connecting column 27, a fitting connecting column 28 and a fitting gasket 29, and a fitting connecting column 28 is installed between the two groups of adsorption connecting columns 27, and a fitting gasket 29 is arranged on the side of the fitting connecting column 28 away from the second mounting shell 701.

[0024] As a preferred embodiment, two groups of fixing screws 11 are arranged above the first mounting shell 601, and a sealing shell 21 is installed between the two groups of fixing screws 11 and the annular magnetic adsorption ring 22, and silent rubber sheets 23 are arranged on both sides of the sealing shell 21, and the vibration frequency during driving is reduced by the attached silent rubber sheets 23.

[0025] As a preferred embodiment, a rebound clamp 26 is arranged above the anti-dropping plug connector 24, and when the first connecting component 6 and the second connecting component 7 are combined, the anti-dropping plug connector 24 and the plug sleeve 25 form a clamping structure through the rebound clamp 26, and the fitting connection column 28 includes a magnetic adsorption fitting ring piece 17 and a connecting gasket 18, and a connecting gasket 18 is arranged on the side of the magnetic adsorption fitting ring piece 17 away from the second connecting component 7. At the same time, during the process of magnetic adsorption, the anti-dropping plug connector 24 is connected to the plug sleeve 25, so that the first connecting component 6 and the second connecting component 7 in the magnetic connection structure 4 can obtain additional locking force to protect the stability of the connection of the magnetic connection structure 4.

[0026] As a preferred embodiment, the folding seat 1 includes a seat cushion frame 101, an assembling base 102, a snap-fitting piece 103, a snap-fitting portion 104 and a backrest frame 105, and the assembling base 102 is installed at the edge of the seat cushion frame 101 by bolts, and the snap-fitting piece 103 is connected to the top of the assembling base 102, and the snap-fitting portion 104 is placed above the snap-fitting piece 103, and the backrest frame 105 is installed above the snap-fitting portion 104 by bolts.

[0027] As a preferred embodiment, the adjustment component 5 includes a pressing head 30, a connecting plate 31, a return spring 32, a connecting shell 33, a pushing rod 34 and a pressing block 35, and a connecting plate 31 is installed below the pressing head 30, and a return spring 32 is arranged on the side of the connecting plate 31 away from the pressing head 30, and a connecting shell 33 is installed below the return spring 32, and a pushing rod 34 is arranged below the connecting shell 33, and a pressing block 35 is installed below the pushing rod 34 by bolts, and the connecting plate 31 is pressed by the pressing head 30, so that the connecting plate 31 drives the return spring 32 to move downward, and drives the pushing rod 34 below the connecting shell 33 to move, so that the pushing rod 34 drives the pressing block 35 to move, so that the pushing rod 34 drives the engaging member 103 to move downward, so that the folding seat 1 can adjust the inclined surface.

[0028] The method for using the interchangeable magnetic cushion structure for automobile seats comprises the following steps: Step 1: First, the seat cushion frame 101 and the backrest frame 105 of the folding seat 1 are connected through the engaging piece 103 and the engaging part 104 on the assembly base 102 to form a folding structure of the seat, and then the second connecting component 7 is attached to the two silent rubber sheets 23 at the attaching surface of the backrest frame 105, and then the second connecting component 7 is attached to the outer surface of the backrest frame 105, and the second connecting component 7 is fixed on the top of the backrest frame 105 by inserting the mounting screw 12 into the inside of the mounting ear 13 and rotating the mounting screw 12; Step 2: Before the first connection component 6 is attached to the outer surface of the backrest frame 105, the first connection component 6 is assembled, the two groups of NdFeB adsorption magnetic sheets 16 are clamped on the inner wall of the first installation shell 601, and then the annular magnetic adsorption ring 22 is clamped between the two groups of NdFeB adsorption magnetic sheets 16, and the fixing screw 11 is inserted into the groove, and the NdFeB adsorption magnetic sheets 16 are attached to the fixing screw 11, and then the sealing shell 21 is attached to the groove of the first installation shell 601; Step 3: Then place the fitting gasket 29 on the outer surface of the plug-in protrusion 20 of the second mounting housing 701, and then pass the magnetic adsorption fitting ring piece 17 through the fitting connection column 28 and the adsorption connection column 27 respectively, and pass the fitting connection column 28 through the fitting gasket 29, and make 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; Step 4: Then attach the assembled first connecting component 6 to the assembly surface of the replaceable lumbar pillow 2, and then use bolts to pass through the fixing holes 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, and pass the corresponding holes of the leather cover through the second connecting component 7, and then install the adjustment component 5 above the clamping portion 104, so as to complete the assembly of the folding seat 1; Step 6: When using the replaceable lumbar pillow 2 and the replaceable headrest 3 of the car seat, fit the second connecting component 7 connected to the replaceable lumbar pillow 2 with the first connecting component 6 of the folding seat 1, and align the first positioning protrusion 15 and the positioning groove 14 of the second connecting component 7 and the first connecting component 6 as well as the plug-in protrusion 20 and the plug-in groove 19, and finally align the anti-drop plug connector 24 and the plug-in sleeve 25, and engage the second connecting component 7 and the first connecting component 6, and complete the assembly of the replaceable lumbar pillow 2 and the replaceable headrest 3 with the folding seat 1; Step 7: When replacing between the replaceable lumbar pillow 2 and the replaceable headrest 3, the corresponding second connecting component 7 and the first connecting component 6 are separated and replaced by pressing the rebound clamp 26 on the anti-drop connector 24.

[0029] The working process of the present application is as follows: first, the seat cushion frame 101 and the backrest frame 105 of the folding seat 1 are assembled as a preferred embodiment through the base 102, the engaging piece 103 and the engaging part 104 on 02 are connected to form a folding structure of the seat, and then the second connecting component 7 is attached to the two silent rubber sheets 23 at the attaching surface of the backrest frame 105, and then the second connecting component 7 is attached to the outer surface of the backrest frame 105, and the second connecting component 7 is fixed above the backrest frame 105 by inserting the mounting screw 12 into the mounting ear 13 and rotating the mounting screw 12; Then, before the first connecting component 6 is attached to the outer surface of the backrest frame 105, the first connecting component 6 is assembled, the two groups of NdFeB adsorption magnetic sheets 16 are clamped on the inner wall of the first mounting shell 601, and then the annular magnetic adsorption ring 22 is clamped between the two groups of NdFeB adsorption magnetic sheets 16, and the fixing screw 11 is inserted into the groove, and the NdFeB adsorption magnetic sheets 16 are attached to the fixing screw 11, and then the sealing shell 21 is attached to the groove of the first mounting shell 601; Then, the fitting gasket 29 is placed on the outer surface of the plug-in protrusion 20 of the second mounting housing 701, and then the magnetic adsorption fitting ring piece 17 is passed through the fitting connection column 28 and the adsorption connection column 27 respectively, and the fitting connection column 28 is passed through the fitting gasket 29, and the fitting connection column 28 is placed inside the first mounting hole 9 of the second mounting housing 701, and the fitting connection column 28 is tightened by inserting a nut; Then, the assembled first connecting component 6 is attached to the assembly surface of the replaceable lumbar pillow 2, and then the stud is passed through the fixing hole 8 to complete the installation of the first connecting component 6; Then, the outer surface of the seat frame is wrapped with a leather cover, and the corresponding holes of the leather cover are passed through the second connecting component 7, and then the adjustment component 5 is installed above the clamping portion 104, thereby completing the assembly of the folding seat 1; Then, when using the replaceable lumbar pillow 2 and the replaceable headrest 3 of the car seat, fit the second connecting component 7 connected to the replaceable lumbar pillow 2 with the first connecting component 6 of the folding seat 1, and align the first positioning protrusion 15 and the positioning groove 14 of the second connecting component 7 and the first connecting component 6 as well as the plug-in protrusion 20 and the plug-in groove 19, and finally match the anti-dropping plug connector 24 and the plug-in sleeve 25, and engage the second connecting component 7 and the first connecting component 6, so as to complete the assembly of the replaceable lumbar pillow 2 and the replaceable headrest 3 with the folding seat 1; Then, when replacing the replaceable lumbar pillow 2 and the replaceable headrest 3, the corresponding second connecting component 7 and the first connecting component 6 are separated and replaced by pressing the rebound clamp 26 on the anti-drop connector 24. The above is the working principle of the interchangeable magnetic pillow structure of a car seat and its use method.

Claims

1. A magnetic seat cushion structure for interchangeable automobile seats, comprising a folding seat (1) and a magnetic connection structure (4), characterized in that: The backrest of the folding seat (1) is provided with a replaceable lumbar pillow (2), and a replaceable headrest (3) is arranged above the replaceable lumbar pillow (2), and a magnetic connection structure (4) is arranged between the folding seat (1) and the replaceable lumbar pillow (2), wherein the magnetic connection structure (4) comprises a first connection component (6) and a second connection component (7), and the second connection component (7) is arranged on a side of the first connection component (6) away from the folding seat (1), and an adjustment component (5) is installed at the edge of the folding seat (1) by means of bolts.

2. The interchangeable magnetic cushion structure for automobile seats according to claim 1, characterized in that: The first connecting component (6) comprises a first mounting shell (601), a fixing hole (8), a first mounting hole (9), a second mounting hole (10), a plug-in protrusion (20) and an anti-drop-out plug connector (24), and the first mounting shell (601) is provided with fixing holes (8) on four sides, and the inner wall of the first mounting shell (601) is provided with two groups of first mounting holes (9), and a second mounting hole (10) is provided between the two groups of first mounting holes (9), and the first mounting shell (601) is provided with a plug-in protrusion (20) on a side away from the replaceable lumbar pillow (2), and an anti-drop-out plug connector (24) is provided above the plug-in protrusion (20).

3. The interchangeable magnetic cushion structure for automobile seats according to claim 2, characterized in that: The second connection assembly (7) comprises a second mounting shell (701), mounting ears (13), a NdFeB adsorption magnetic sheet (16), a plug-in slot (19), an annular magnetic adsorption ring (22), a plug-in sleeve (25) and a mounting screw (12), and mounting ears (13) are provided on both sides of the second mounting shell (701), and a plug-in slot (19) is provided between two groups of the mounting ears (13), and two groups of NdFeB adsorption magnetic sheets (16) are clamped at the inner wall edge of the plug-in slot (19), and an annular magnetic adsorption ring (22) is installed between the two groups of the NdFeB adsorption magnetic sheets (16), and a plug-in sleeve (25) is provided above the second mounting shell (701), and the mounting screw (12) is connected through the inner wall of the mounting ear (13).

4. The interchangeable magnetic cushion structure for automobile seats according to claim 3, characterized in that: The four sides of the plug-in protrusion (20) are all provided with first positioning protrusions (15), and the four sides of the inner wall of the plug-in groove (19) are all provided with positioning grooves (14), and the first connecting component (6) and the second connecting component (7) are connected via 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 with each other via the first positioning protrusion (15) and the positioning groove (14), and the plug-in protrusion (20) and the plug-in groove (19) are inclined at 3° along a horizontal plane.

5. The interchangeable magnetic cushion structure for automobile seats according to claim 3, characterized in that: The second connection assembly (7) further comprises an adsorption connection column (27), a fitting connection column (28) and a fitting gasket (29), and a fitting connection column (28) is installed between two groups of the adsorption connection columns (27), and a fitting gasket (29) is provided on a side of the fitting connection column (28) away from the second installation shell (701).

6. The interchangeable magnetic cushion structure for automobile seats according to claim 3, characterized in that: Two groups of fixing screws (11) are arranged above the first installation shell (601), and a sealing shell (21) is installed between the two groups of fixing screws (11) and the annular magnetic attraction ring (22), and sound-proof rubber sheets (23) are arranged on both sides of the sealing shell (21).

7. The interchangeable magnetic cushion structure for automobile seats according to claim 5, characterized in that: A rebound clamp (26) is arranged above the anti-drop-off plug connector (24), and when the first connection component (6) and the second connection component (7) are combined, the anti-drop-off plug connector (24) and the plug sleeve (25) form a snap-fit ​​structure through the rebound clamp (26), the fitting connection column (28) includes a magnetic adsorption fitting ring sheet (17) and a connecting gasket (18), and the connecting gasket (18) is arranged on the side of the magnetic adsorption fitting ring sheet (17) away from the second connection component (7).

8. The interchangeable magnetic cushion structure for automobile seats according to claim 1, characterized in that: The folding seat (1) comprises a seat cushion frame (101), an assembly base (102), a snap-fitting piece (103), a snap-fitting portion (104) and a backrest frame (105), wherein the assembly base (102) is mounted on the edge of the seat cushion frame (101) via bolts, the snap-fitting piece (103) is connected to the top of the assembly base (102), the snap-fitting portion (104) is placed above the snap-fitting piece (103), and the backrest frame (105) is mounted above the snap-fitting portion (104) via bolts.

9. The interchangeable magnetic cushion structure for automobile seats according to claim 1, characterized in that: The adjustment assembly (5) comprises a pressing head (30), a connecting plate (31), a return spring (32), a connecting shell (33), a push rod (34) and a pressing block (35), wherein the connecting plate (31) is installed below the pressing head (30), and a return spring (32) is provided on a side of the connecting plate (31) away from the pressing head (30), and a connecting shell (33) is installed below the return spring (32), and a push rod (34) is provided below the connecting shell (33), and a pressing block (35) is installed below the push rod (34) via bolts.

10. A method for using an interchangeable magnetic cushion structure for automobile seats, using the interchangeable magnetic cushion structure for automobile seats as claimed in any one of claims 1 to 9, characterized in that: The method of use comprises the following steps: Step 1: First, the seat cushion frame (101) and the backrest frame (105) of the folding seat (1) are connected by means of the engaging piece (103) and the engaging part (104) on the assembly base (102) to form a folding structure of the seat, and then two pieces of silent rubber sheets (23) are attached to the attachment surface of the second connecting component (7) and the backrest frame (105), and then the second connecting component (7) is attached to the outer surface of the backrest frame (105), and the second connecting component (7) is fixed on the top of the backrest frame (105) by inserting the mounting screw (12) into the interior of the mounting ear (13) and rotating the mounting screw (12); Step 2: before the first connection component (6) is attached to the outer surface of the backrest frame (105), the first connection component (6) is assembled, two groups of NdFeB adsorption magnetic sheets (16) are clamped on the inner wall of the first installation shell (601), and then the annular magnetic adsorption ring (22) is clamped between the two groups of NdFeB adsorption magnetic sheets (16), and the fixing screw (11) is inserted into the groove, and the NdFeB adsorption magnetic sheets (16) and the fixing screw (11) are attached, and then the sealing shell (21) is attached to the groove of the first installation shell (601); Step 3: Then place the fitting gasket (29) on the outer surface of the plug-in protrusion (20) of the second mounting shell (701), and then pass the magnetic adsorption fitting ring sheet (17) through the fitting connection column (28) and the adsorption connection column (27) respectively, and 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 shell (701), and tighten the fitting connection column (28) by inserting a nut; Step 4: Then, the assembled first connecting component (6) is attached to the assembly surface of the replaceable lumbar pillow (2), and then, a stud is passed 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, and pass the corresponding holes of the leather cover through the second connecting component (7), and then install the adjustment component (5) above the locking portion (104), thereby completing the assembly of the folding seat (1); Step 6: When using the replaceable lumbar pillow (2) and the replaceable headrest (3) of the automobile seat, the second connecting component (7) connected to the replaceable lumbar pillow (2) is fitted with the first connecting component (6) of the folding seat (1), and the first positioning protrusions (15) and positioning grooves (14) and the plug-in protrusions (20) and the plug-in grooves (19) of the second connecting component (7) and the first connecting component (6) are aligned, and finally the anti-dropping plug connector (24) and the plug-in sleeve (25) are aligned, and the second connecting component (7) and the first connecting component (6) are engaged, thereby completing the assembly of the replaceable lumbar pillow (2) and the replaceable headrest (3) with the folding seat (1); Step 7: When replacing the replaceable lumbar pillow (2) and the replaceable headrest (3), the corresponding second connecting component (7) and the first connecting component (6) are separated and replaced by pressing the rebound clamp (26) on the anti-drop plug connector (24).

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