Magnetic attraction mechanism for chair back

Abstract

The invention discloses a chair back magnetic attraction mechanism, which improves the entertainment adaptation degree of passengers in the back row during riding while ensuring the use safety and convenience of an operator, and ensures that different people 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 invention 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 now choose functional seats as car seats. At the same time, with the popularity of tablet computers, more and more people choose to set a set of seat back mounting mechanisms at the rear 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 holder has little freedom and cannot meet the usage needs of different groups of people; and some existing magnetic tablet holders are fixed in position and cannot be recycled. After use, the magnetic tablet holder needs to be removed and properly stored, which makes the convenience low. Summary of the invention

[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 suction mechanism of the chair back is characterized in that it comprises:

[0005] A chair back mounting mechanism, comprising a front mounting connection part, a slider assembly, and a mounting seat, wherein the rear end of the front mounting connection part is connected to the corresponding output end of the slider assembly through a damping hinge, the front mounting connection part performs swinging, pitching, and rotating actions relative to an 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 through a guide hole, the slider assembly is away from or extends inwardly from the corresponding mounting cavity of the mounting seat, a constant force spring is arranged 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, the front end of the front mounting connection part is provided with a flat plate area, the flat plate area is provided with a first magnet assembly and a first PIN needle;

[0006] and a tablet shell part, which includes a tablet shell holder, a rotating base, a buckle bottom plate, and a fixing ring, wherein the buckle bottom plate is provided with a second PIN pin and a second magnet assembly, a rotating base is provided on the back of the tablet shell holder, the rotating base and the fixing ring cooperate to cover the outer ring of the buckle bottom plate, the rotating base and the fixing ring are rotatably arranged around the outer ring of the buckle bottom plate, and an inner concave profiling groove is provided at a position of the buckle bottom plate 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 connected to the second PIN pin in position, and the first magnet assembly and the second magnet assembly are connected by adsorption.

[0008] It is further characterized by:

[0009] A side pressure limit switch is also arranged 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 is retracted into the switch mounting cavity of the slider assembly to release the lock of the inner stop end.

[0010] The slider assembly is externally provided with a housing formed by a first telescopic housing and a second telescopic housing;

[0011] The upper part of the slider assembly is provided with a rack, and the mounting seat is provided with a gear, the gear is embedded and positioned in the corresponding mounting hole groove of the mounting seat from the upper part, and the gear is meshed and connected with the rack;

[0012] Guide holes are respectively arranged on both sides of the slider assembly, and two groups of optical axes are fixed in the mounting seat, and each group 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 part of the slider assembly is connected to one end of a swing arm, 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, further ensuring stable and reliable guidance;

[0014] The front mounting connection part 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 surface and the lower surface of the mounting seat are respectively provided with guide rail grooves corresponding to the positions of the avoidance groove, so that no matter what pitch angle the front mounting connection part is at after being extended, it will return to the initial angle after being pressed and retracted;

[0015] The back of the tablet computer housing card holder and the center opening of the rotating base are used to lead out the power supply line to supply power to the tablet computer;

[0016] The two sides of the inwardly concave profiling groove are respectively provided with raised ends of the buckle assembly, the driving end of the buckle assembly is built into the inner cavity of the buckle bottom plate, and the inner cavity of the buckle bottom plate is also provided with a spring assembly, the spring assembly is connected with a driving button, the driving end of the driving button protrudes outward from the back guide notch of the buckle bottom plate, the driving end of the driving button moves and transmits pressure to the spring assembly, thereby causing the raised end of the buckle 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 buckle assembly is always raised to ensure reliable locking of 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 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; adding a magnetic ring to a mobile phone with wireless charging function without magsafe function can also achieve the same 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 fixedly arranged, the first PIN pin is connected to the second PIN pin in position, 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 fixing ring are rotatably arranged around the outer ring of the buckle bottom plate, so that the tablet computer can be rotated at any angle, and in addition, since the front mounting connection part performs swinging, pitching and rotating actions 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 computer can perform pitching actions and front and rear position adjustment. When the tablet computer is not needed, the whole mechanism can be reset. While ensuring the safety and convenience of the operator, it improves the entertainment adaptability of the rear passengers when riding, and ensures that different groups of 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 (with a tablet computer installed);

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

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

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

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

[0024] Figure 6 An exploded view of a 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 invention;

[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 part 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 needle 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 part 30, tablet computer 40, front mounting connection part 50, rear end connecting shaft end 51, tablet area 52, first magnet assembly 53, first PIN needle 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 installation 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 needle 112, third magnet assembly 113, PCB board part 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 may be combined with each other.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to 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 the backrest, 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 commonly used 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 body mechanism 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 with the seat. The front end of the front mounting connection part 50 is provided with a flat plate area 52, and the flat plate area 52 is provided with a first magnet assembly 53 and a first PIN needle 54.

[0036] The tablet shell part 20 includes a tablet shell 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 shell 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 inner concave profiling 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 and connected to 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 a positioning locking structure 111 for docking the flat plate area 52, and a third PIN needle 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 a mobile phone with a magsafe function; adding a magnetic ring to a mobile phone with a wireless charging function without a magsafe function can also achieve the same function. During the assembly operation, the third magnet assembly 113 is used for positioning and adsorbing with the first magnet assembly 53 of the flat plate area 52, and the first PIN needle 54 is aligned and connected to the third PIN needle 112 to form a male and female matching PIN needle.

[0039] When implementing

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

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

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

[0043] The front mounting connection part 50 is also provided with a rearwardly protruding 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 back.

[0044] In a specific implementation, holes are formed at the back of the tablet computer housing holder 21 and the center of the rotating base 22 so that a power supply line can be led out to supply power to the tablet computer 40;

[0045] The two sides of the concave contoured groove 231 are respectively provided with raised ends 271 of the snap assembly 27, and the driving end of the snap assembly 27 is built into the inner cavity of the snap base plate 23. The inner cavity of the snap base plate 23 is also provided with a spring assembly 28, and 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 is pressed down along the back guide notch 232 and transmits pressure to the spring assembly 28, thereby causing the raised 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 raised end 271 of the snap assembly 27 is always raised to ensure reliable locking of the flat plate area 52.

[0046] In 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 arranged 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 at 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 computer can pitch and adjust the front and rear position. 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, 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 invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. The magnetic suction mechanism of the chair back is characterized by: It includes: A chair back mounting mechanism, comprising a front mounting connection part, a slider assembly, and a mounting seat, wherein the rear end of the front mounting connection part is connected to the corresponding output end of the slider assembly through a damping hinge, the front mounting connection part performs swinging, pitching, and rotating actions relative to an 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 through a guide hole, the slider assembly is away from or extends inwardly from the corresponding mounting cavity of the mounting seat, a constant force spring is arranged 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, the front end of the front mounting connection part is provided with a flat plate area, the flat plate area is provided with a first magnet assembly and a first PIN needle; and a tablet shell part, which includes a tablet shell holder, a rotating base, a buckle bottom plate, and a fixing ring, wherein the buckle bottom plate is provided with a second PIN pin and a second magnet assembly, a rotating base is provided on the back of the tablet shell holder, the rotating base and the fixing ring cooperate to cover the outer ring of the buckle bottom plate, the rotating base and the fixing ring are rotatably arranged around the outer ring of the buckle bottom plate, and an inner concave profiling groove is provided at a position of the buckle bottom plate 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 connected to the second PIN pin in position, and the first magnet assembly and the second magnet assembly are connected by adsorption.

2. The magnetic suction mechanism for a chair back according to claim 1, characterized in that: A side pressure limit switch is also arranged 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 to release the lock of the inner stop end.

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

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

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

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

9. The magnetic suction 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 with a driving button, the driving end of the driving button protrudes out of the back guide notch of the snap base plate, and the driving end of the driving button moves and transmits pressure to the spring assembly.

10. The magnetic suction 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 a positioning locking structure for docking the flat plate area, a third PIN needle, 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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