Magnetic attraction mechanism for chair back

Abstract

The utility model discloses a chair back magnetic attraction mechanism, which ensures the safety and convenience of an operator in use, improves the entertainment adaptation degree of passengers in the back row during riding, and ensures that different crowds can adjust proper angles and positions as required for comfortable operation. The chair back mounting device comprises a chair back mounting mechanism, the chair back mounting mechanism comprises a front mounting connecting part, a sliding block assembly and a mounting seat, a flat plate area is arranged at the front end of the front mounting connecting part, and a first magnet assembly and a first PIN are arranged in the flat plate area; the tablet computer shell part comprises a tablet computer shell clamping seat, a rotating base, a buckle bottom plate and a fixing ring, and a concave profiling groove is formed in the position, facing the tablet area, of the buckle bottom plate; in the assembling state, the flat plate area is embedded in the inwards-concave profiling groove to be fixedly arranged, the first PIN needle is connected with the second PIN needle in an aligned mode, and the first magnet assembly and the second magnet assembly are connected in an attraction mode.

Description

Technical Field

[0001] The utility model relates to the technical field of chair back accessories, in particular to a chair back magnetic attraction mechanism. Background Art

[0002] With the popularity of cars, more and more people are choosing functional seats as their car seats. At the same time, with the popularity of tablet computers, more and more people are choosing to set a set of seat back mounting mechanisms on the back of the front seats, which allows the tablet computer to be connected to the seat back mounting mechanism through a magnetic tablet holder, making it convenient for the operator to use the tablet computer. However, the existing magnetic tablet holders have little degree of freedom and cannot meet the usage needs of different groups of people. In addition, some existing magnetic tablet holders are fixed in position and cannot be recycled. After use, the magnetic tablet holders need to be removed and properly stored, which makes the convenience low. Utility Model Content

[0003] In response to the above problems, the present invention provides a magnetic suction mechanism for the seat back, which not only ensures the safety and convenience of the operator, but also improves the entertainment adaptability of the rear passengers when riding in the vehicle, ensuring that different groups of people can adjust the appropriate angle and position as needed for comfortable operation.

[0004] The magnetic attraction mechanism of the chair back is characterized in that it includes:

[0005] A seat back mounting mechanism, comprising a front mounting connection portion, a slider assembly, and a mounting seat; the rear end of the front mounting connection portion is connected to the corresponding output end of the slider assembly via a damping hinge; the front mounting connection portion performs swinging, pitching, and rotating motions relative to the equivalent horizontal axis formed by the damping hinge of the slider assembly; the slider assembly is connected to the corresponding optical axis on the mounting seat via a guide hole; the slider assembly is away from or extends into the corresponding mounting cavity of the mounting seat; a constant force spring is provided between the rear end of the slider assembly and the mounting seat; the mounting seat is provided with a mounting hole for fixing to the seat; a flat plate area is provided at the front end of the front mounting connection portion; a first magnet assembly and a first PIN are provided in the flat plate area;

[0006] and a tablet housing portion, which includes a tablet housing holder, a rotating base, a snap base, and a fixed ring. The snap base is provided with a second PIN pin and a second magnet assembly. A rotating base is provided on the back of the tablet housing holder. The rotating base and the fixed ring cooperate to enclose the outer ring of the snap base. The rotating base and the fixed ring are rotatably arranged around the outer ring of the snap base. The snap base is provided with an inwardly concave contoured groove at a position facing the tablet area.

[0007] In the assembled state, the flat plate area is embedded in the concave contoured groove and fixed, the first PIN pin is aligned with the second PIN pin, and the first magnet assembly and the second magnet assembly are adsorbed and connected.

[0008] It is further characterized by:

[0009] A side pressure limit switch is further provided between the sliding track cavity formed by the slider assembly and the mounting seat. The inner stop end of the side pressure limit switch abuts against the outer surface of the mounting seat to form a stop after the slider assembly moves to the outermost end. After the side pressure limit switch is pressed, its side end retracts into the switch mounting cavity of the slider assembly, releasing the lock of the inner stop end.

[0010] A housing formed by a first telescopic shell and a second telescopic shell is installed on the outside of the slider assembly;

[0011] A rack is provided on the upper portion of the slider assembly, and a gear is provided in the mounting seat. The gear is embedded in the corresponding mounting hole groove of the mounting seat from the upper portion and is meshed with the rack;

[0012] Guide holes are provided on both sides of the slider assembly, and two sets of optical axes are fixed in the mounting seat. Each set of optical axes is correspondingly inserted into the guide holes, so that the straight-line movement of the slider assembly is reliable and stable;

[0013] The upper portion of the slider assembly is connected to one end of a swing arm, and the other upper convex end of the swing arm faces the guide groove on the lower wall of the upper surface of the mounting seat, further ensuring stable and reliable guidance;

[0014] The front mounting connection portion is further provided with a rearwardly protruding guide wheel, the slider assembly is provided with an avoidance groove corresponding to the direction of travel of the guide wheel, and the upper and lower surfaces of the mounting seat are respectively provided with guide rail grooves at positions corresponding to the avoidance groove, so that no matter what pitch angle the front mounting connection portion is at after being extended, it will return to the initial angle after being pressed to retract;

[0015] The back of the tablet computer housing holder and the center of the rotating base are provided with openings for leading out power lines to supply power to the tablet computer;

[0016] The two sides of the inwardly concave contoured groove are respectively provided with raised ends of a snap assembly, the driving end of the snap assembly is built into the inner cavity of the snap base plate, and a spring assembly is further provided in the inner cavity of the snap base plate, the spring assembly is connected to a driving button, the driving end of the driving button protrudes outward from the back guide notch of the snap base plate, the driving end of the driving button is actuated, and pressure is transmitted to the spring assembly, thereby causing the raised end of the snap assembly to retract, thereby completing the separation action from the flat plate area of ​​the chair back mounting mechanism; when the driving button is not subjected to force, the raised end of the snap assembly is always raised, ensuring reliable locking to the flat plate area;

[0017] It also includes a mobile phone wireless charging module part, which includes a wireless charging shell and a wireless charging module. The wireless charging shell includes a positioning locking structure for docking with the flat panel area, and a third PIN pin, a third magnet assembly, and a PCB board part. The wireless charging module cover is installed on the front surface of the wireless charging shell. There is a magnet inside the wireless charging module to realize wireless charging of mobile phones with magsafe function; the same function can be achieved by adding a magnetic ring to a mobile phone with wireless charging function but without magsafe function. The third magnet assembly is used for positioning adsorption with the first magnet assembly in the flat panel area.

[0018] After adopting the structure of the present invention, the tablet area is embedded in the concave contoured groove and fixed, the first PIN pin is connected to the second PIN pin, the first magnet assembly and the second magnet assembly are adsorbed and connected, so that the tablet shell part and the chair back mounting mechanism are reliably connected, the tablet case is installed in the tablet shell card seat, the rotating base and the fixing ring are rotated around the outer ring of the buckle bottom plate, so that the tablet can be rotated to any angle. In addition, since the front mounting connection part swings, pitches and rotates relative to the horizontal axis of the slider assembly, the slider assembly is connected to the corresponding optical axis on the mounting seat through the guide hole, and the slider assembly is away from or extends into the corresponding mounting cavity of the mounting seat, so that the tablet can pitch and adjust the front and rear position. When the tablet is not needed, the entire mechanism can be reset. While ensuring the safety and convenience of the operator, it improves the entertainment adaptability of the rear passengers when riding in the car, and ensures that different people can adjust the appropriate angle and position as needed for comfortable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of the present invention (equipped with a tablet computer);

[0020] Figure 2 A three-dimensional diagram of the assembly of the chair back mounting mechanism and the mobile phone wireless charging module of the present invention;

[0021] Figure 3 A three-dimensional diagram of the chair back mounting mechanism of the present invention;

[0022] Figure 4 This is an exploded view of the chair back mounting mechanism of the present invention;

[0023] Figure 5 It is a three-dimensional schematic diagram of the upper seat of the mounting seat of the chair back mounting mechanism of the present invention;

[0024] Figure 6 This is an exploded view of the flat housing portion of the present invention;

[0025] Figure 7 This is an exploded view of the mobile phone wireless charging module of the present utility model;

[0026] Figure 8 A three-dimensional diagram of a chair back mounting mechanism provided with a side pressure limit switch according to the present invention;

[0027] The names corresponding to the serial numbers in the figure are as follows:

[0028] Backrest mounting mechanism 10, tablet housing portion 20, tablet housing card seat 21, rotating base 22, buckle bottom plate 23, concave profiling groove 231, back guide notch 232, fixing ring 24, second PIN pin 25, second magnet assembly 26, buckle assembly 27, raised end 271, spring assembly 28, drive button 29, drive end 291, mobile phone wireless charging module portion 30, tablet computer 40, front mounting connection portion 50, rear end connecting shaft end 51, tablet area 52, first magnet assembly 53, first PIN pin 54, guide wheel 55, slide Block assembly 60, first telescopic shell 61, second telescopic shell 62, rack 63, swing arm 64, avoidance groove 65, switch mounting cavity 66, mounting seat 70, upper seat 71, mounting hole 711, lower wall guide groove 712, lower seat 72, optical axis 73, guide rail groove 74, damping hinge 80, constant force spring 90, gear 100, wireless charging shell 110, alignment locking structure 111, third PIN pin 112, third magnet assembly 113, PCB board portion 114, wireless charging module 120, side pressure limit switch 130, inner stop end 131. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0030] In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. A person skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0033] Magnetic suction mechanism for chair back, see Figure 1-Figure 7 , which includes a chair back mounting mechanism 10, a tablet housing portion 20, and a mobile phone wireless charging module portion 30;

[0034] The common structure is a chair back mounting mechanism 10 and a tablet housing portion 20 for placing a tablet computer 40 (see Figure 1 ); Occasionally, the chair back mounting mechanism 10 and the mobile phone wireless charging module portion 30 are combined (see Figure 2 ) is used to wirelessly charge mobile phones.

[0035] In a specific implementation, the chair back mounting mechanism 10 includes a front mounting connection portion 50, a slider assembly 60, and a mounting seat 70. The mounting seat 70 includes an upper seat 71 and a lower seat 72. The upper seat 71 and the lower seat 72 are fixedly connected to form a mounting cavity of the mounting seat 70. The rear end connecting shaft end 51 of the front mounting connection portion 50 is connected to the two side walls of the avoidance gap of the corresponding output end of the slider assembly 60 through a damping hinge 80. The front mounting connection portion 50 performs a swing, pitch, and rotation action relative to the equivalent horizontal axis formed by the damping hinge 80 of the slider assembly 60. The slider assembly 60 is connected to the corresponding optical axes 73 fixed on both sides of the mounting seat 70 through the guide holes on both sides. The slider assembly 60 is away from or extends into the corresponding mounting cavity of the mounting seat 70. The rear end of the slider assembly 60 is fixed to the main body of the constant force spring 90. The movable end of the spring of the constant force spring 90 is connected to the lower seat 72. The upper seat 71 is provided with a mounting hole 711 for fixing to the seat. The front end of the front mounting connection portion 50 is provided with a flat plate area 52. The flat plate area 52 is provided with a first magnet assembly 53 and a first PIN needle 54.

[0036] The tablet housing portion 20 includes a tablet housing holder 21, a rotating base 22, a snap base 23, and a fixing ring 24. The snap base 23 is provided with a second PIN pin 25 and a second magnet assembly 26. The back of the tablet housing holder 21 is provided with a rotating base 22. The rotating base 22 and the fixing ring 24 cooperate to cover the outer ring of the snap base 23. The rotating base 22 and the fixing ring 24 are rotatably arranged around the outer ring of the snap base 23. The snap base 23 is provided with an inwardly concave contoured groove 231 at a position facing the tablet area 52.

[0037] In the assembled state, the flat plate area 52 is embedded in the concave contoured groove 231 and fixed, the first PIN needle 54 is aligned with the second PIN needle 25 to form a male and female matching PIN needle, and the first magnet assembly 53 and the second magnet assembly 26 are adsorbed and connected.

[0038] The mobile phone wireless charging module part 30 includes a wireless charging shell 110 and a wireless charging module 120. The wireless charging shell 110 includes an alignment locking structure 111 for docking with the flat panel area 52, as well as a third PIN pin 112, a third magnet assembly 113, and a PCB board part 114. The wireless charging module 120 is covered on the front surface of the wireless charging shell 110. There is a magnet inside the wireless charging module 120 to realize wireless charging of mobile phones with magsafe function; for mobile phones without magsafe function but with wireless charging function, the same function can be achieved by adding a magnetic ring. During assembly, the third magnet assembly 113 is used to align and adsorb with the first magnet assembly 53 of the flat panel area 52, and the first PIN pin 54 is aligned and connected to the third PIN pin 112 to form a male and female matching PIN pin.

[0039] When implementing

[0040] The slider assembly 60 is externally mounted with a housing formed by a first telescopic housing 61 and a second telescopic housing 62;

[0041] A rack 63 is provided on the upper portion of the slider assembly 60, and a gear 100 is provided on the upper seat 71. The gear 100 is embedded in the corresponding mounting hole groove of the upper seat 71 from the upper portion, and the gear 100 is built into the mounting cavity and meshed with the rack 63.

[0042] One end of a swing arm 64 is connected to the upper portion of the slider assembly 60, and the other upper convex end of the swing arm 64 faces the guide groove 712 of the lower wall of the upper seat 71, further ensuring stable and reliable guidance;

[0043] The front mounting connection part 50 is also provided with a rearward-convex guide wheel 55, and the slider assembly 60 is provided with an avoidance groove 65 corresponding to the travel direction of the guide wheel, and the upper and lower surfaces of the mounting seat 70 are respectively provided with guide rail grooves 74 corresponding to the positions of the avoidance groove 65, so that no matter what pitch angle the front mounting connection part 50 is at after being extended, it will return to the initial angle after being pressed and retracted.

[0044] In a specific implementation, holes are formed in the back of the tablet computer housing holder 21 and the center of the rotating base 22 to lead out the power supply line for supplying power to the tablet computer 40;

[0045] The protruding ends 271 of the snap assembly 27 are respectively provided on both sides of the concave contoured groove 231. The driving end of the snap assembly 27 is built into the inner cavity of the snap base plate 23. A spring assembly 28 is also provided in the inner cavity of the snap base plate 23. The spring assembly 28 is connected to a driving button 29. The driving end 291 of the driving button 29 protrudes out of the back guide notch 232 of the snap base plate 23. The driving end of the driving button 29 presses down along the back guide notch 232 and transmits pressure to the spring assembly 28, thereby causing the protruding end 271 of the snap assembly 27 to retract, thereby completing the disengagement action from the flat plate area 52 of the chair back mounting mechanism 10; when the driving button 29 is not subjected to force, the protruding end 271 of the snap assembly 27 is always protruding to ensure reliable locking of the flat plate area 52.

[0046] During specific implementation, in order to ensure the stability and reliability of the slider assembly 60 when in use, a side pressure limit switch 130 is further provided between the sliding track cavity formed by the slider assembly 60 and the mounting seat 70. After the slider assembly 60 moves to the outermost end, the inner stop end 131 of the side pressure limit switch 130 abuts against the outer surface of the mounting seat 70 to form a stop. After the side pressure limit switch 130 is pressed, its side end retracts into the switch mounting cavity 66 of the slider assembly 30 and the lock of the inner stop end 131 is released, so that the slider assembly 60 can retract in a straight line along the sliding rail cavity of the mounting seat 70.

[0047] Its working principle is as follows: the tablet area is embedded in the concave contoured groove and fixed, the first PIN pin is connected to the second PIN pin, the first magnet assembly and the second magnet assembly are adsorbed and connected, so that the tablet shell part and the chair back mounting mechanism are reliably connected, the tablet computer case is installed in the tablet computer shell holder, the rotating base and the fixed ring are rotated around the outer ring of the buckle bottom plate, so that the tablet computer can be rotated to any angle, in addition, since the front mounting connection part performs swinging, pitching and rotating movements relative to the horizontal axis of the slider assembly, the slider assembly is connected to the corresponding optical axis on the mounting seat through the guide hole, and the slider assembly is away from or extended inward from the corresponding mounting cavity of the mounting seat, so that the tablet computer can perform pitch movements and front and rear position adjustments. When the tablet computer is not needed, the entire mechanism can be reset. While ensuring the safety and convenience of the operator, it improves the entertainment adaptability of the rear passengers when riding in the car, and ensures that different people can adjust the appropriate angle and position as needed for comfortable operation.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0049] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. The magnetic attraction mechanism of the chair back is characterized by: It includes: A seat back mounting mechanism, comprising a front mounting connection portion, a slider assembly, and a mounting seat; the rear end of the front mounting connection portion is connected to the corresponding output end of the slider assembly via a damping hinge; the front mounting connection portion performs swinging, pitching, and rotating motions relative to the equivalent horizontal axis formed by the damping hinge of the slider assembly; the slider assembly is connected to the corresponding optical axis on the mounting seat via a guide hole; the slider assembly is away from or extends into the corresponding mounting cavity of the mounting seat; a constant force spring is provided between the rear end of the slider assembly and the mounting seat; the mounting seat is provided with a mounting hole for fixing to the seat; a flat plate area is provided at the front end of the front mounting connection portion; a first magnet assembly and a first PIN are provided in the flat plate area; and a tablet housing portion, which includes a tablet housing holder, a rotating base, a snap base, and a fixed ring. The snap base is provided with a second PIN pin and a second magnet assembly. A rotating base is provided on the back of the tablet housing holder. The rotating base and the fixed ring cooperate to enclose the outer ring of the snap base. The rotating base and the fixed ring are rotatably arranged around the outer ring of the snap base. The snap base is provided with an inwardly concave contoured groove at a position facing the tablet area. In the assembled state, the flat plate area is embedded in the concave contoured groove and fixed, the first PIN pin is aligned with the second PIN pin, and the first magnet assembly and the second magnet assembly are adsorbed and connected.

2. The magnetic attraction mechanism for a chair back according to claim 1, characterized in that: A side pressure limit switch is also provided between the sliding track cavity formed by the slider assembly and the mounting seat. The inner stop end of the side pressure limit switch abuts against the outer surface of the mounting seat to form a stop after the slider assembly moves to the outermost end. After the side pressure limit switch is pressed, its side end retracts into the switch mounting cavity of the slider assembly, releasing the lock of the inner stop end.

3. The magnetic attraction mechanism for a chair back according to claim 1, characterized in that: A housing formed by a first telescopic shell and a second telescopic shell is installed on the outside of the slider assembly.

4. The magnetic attraction mechanism for a chair back according to claim 1, characterized in that: A rack is provided on the upper portion of the slider assembly, and a gear is provided in the mounting seat. The gear is embedded and positioned in the corresponding mounting hole groove of the mounting seat from the upper portion, and the gear is meshed and connected with the rack.

5. The magnetic attraction mechanism for a chair back according to claim 1, characterized in that: Guide holes are respectively provided on both sides of the slider assembly. Two groups of optical axes are fixed in the mounting seat, and each group of optical axes is correspondingly inserted into the guide holes.

6. The magnetic attraction mechanism for a chair back according to claim 1, characterized in that: One end of a swing arm is connected to the upper portion of the slider assembly, and the other upper convex end of the swing arm is directed toward the lower wall guide groove on the upper surface of the mounting seat.

7. The magnetic attraction mechanism for a chair back according to claim 1, characterized in that: The front mounting connection portion is also provided with a rearwardly protruding guide wheel, the slider assembly is provided with an avoidance groove corresponding to the travel direction of the guide wheel, and the upper and lower surfaces of the mounting seat are respectively provided with guide rail grooves corresponding to the positions of the avoidance grooves.

8. The magnetic attraction mechanism for a chair back according to claim 1, characterized in that: The back of the tablet computer housing card seat and the center of the rotating base are opened to lead out the power supply line for supplying power to the tablet computer.

9. The magnetic attraction mechanism for a chair back according to claim 1, characterized in that: The two sides of the concave contoured groove are respectively provided with raised ends of the snap assembly, the driving end of the snap assembly is built into the inner cavity of the snap base plate, and a spring assembly is also provided in the inner cavity of the snap base plate. The spring assembly is connected to a driving button, and the driving end of the driving button protrudes outward from the back guide notch of the snap base plate. The driving end of the driving button is actuated to transmit pressure to the spring assembly.

10. The magnetic attraction mechanism for a chair back according to claim 1, characterized in that: It also includes a mobile phone wireless charging module part, which includes a wireless charging shell and a wireless charging module. The wireless charging shell includes an alignment locking structure for docking the flat panel area, a third PIN pin, a third magnet assembly, and a PCB board part. The wireless charging module cover is installed on the front surface of the wireless charging shell.

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