Magnetic chair back expansion base

Abstract

The utility model discloses a chair back magnetic attraction development base mainly relates to car ornament accessory technical field, including the mounting seat with the hook groove, is equipped with rotatable support frame on the mounting seat, is equipped with the replaceable function support at the one end of support frame away from the mounting seat, the function support is connected through the ball head connecting piece between the support frame, the function support includes the magnetic attraction cell -phone support, the tablet computer support, one side or both sides of support frame is equipped with the hook, the hook is installed on the mounting seat, the utility model discloses not only have the hook function, but also can fix cell -phone, tablet computer etc., has facilitated people's use.

Description

Technical Field

[0001] This utility model relates to the field of automotive accessories technology, specifically a magnetic extension base for seat backs. Background Technology

[0002] To facilitate the placement of items by rear passengers and solve the problem of clutter in the vehicle, various forms of seat back hooks exist in the existing technology. These hooks are fixed to the back of the front seats and can be used to hang handbags, backpacks, and other items, keeping the rear passenger space tidy. However, the existing seat back hooks are too simple in function, only having a hooking function, which is difficult to meet people's growing needs. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and provide a magnetic extension base for chair backs that has both hook function and can fix mobile phones, tablets and other devices, making it more convenient for people to use.

[0004] To achieve the above objectives, this utility model employs the following technical solution: The backrest magnetic extension base includes a mounting base with a hook groove, a rotatable support frame on the mounting base, a replaceable functional bracket at the end of the support frame away from the mounting base, the functional bracket and the support frame being connected by a ball joint connector, the functional bracket including a magnetic mobile phone holder and a tablet holder, and hooks on one or both sides of the support frame, the hooks being mounted on the mounting base.

[0005] Preferably, an elastic anti-detachment component is provided on the inner wall of the hook groove.

[0006] Preferably, the mounting base includes a base and an L-shaped upper cover, and the upper cover and the base are connected by screws.

[0007] Preferably, the end of the support frame furthest from the functional bracket is mounted on the mounting base by hand-tightening screws.

[0008] Preferably, the support frame has a base plate on one side near the mounting base and a top plate on the other side. The base plate has a slot adapted to the support frame on one side near the support frame, and a plurality of first teeth are arranged in a circular array on the other side. The mounting base has second teeth adapted to the first teeth. The base plate, support frame, and top plate all have through holes adapted to the hand-tightening screw. A spring is fitted on the hand-tightening screw, and the spring is located on the side of the top plate away from the support frame.

[0009] Preferably, the through hole on the support frame is an oblong hole.

[0010] Preferably, the hook is a concealed hook, with a groove on the mounting base that is adapted to the hook, the bottom end of the hook being hinged in the groove, and the rotation angle of the hook being less than 90°.

[0011] Preferably, the ball joint connector includes a universal ball joint disposed on the support frame, a ball joint fitting disposed on the functional bracket, and an adjustable ball joint fastener sleeved on the ball joint fitting and threadedly connected to the ball joint fitting.

[0012] Preferably, the magnetic phone holder contains a magnet assembly, and the end of the magnetic phone holder away from the support frame has anti-slip texture.

[0013] Preferably, the magnetic extension base for the chair back also includes a makeup mirror that cooperates with the magnetic phone holder, and the makeup mirror is provided with a magnetic component.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model can be adapted to various functional brackets, which can not only serve as hooks but also fix mobile phones, tablets, etc., making it more convenient for people to use. In addition, the functional brackets and the support frame are connected by ball joint connectors, and the support frame can rotate, allowing the position and angle of the functional brackets to be adjusted as needed, making it even more convenient for people to use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a cross-sectional view of the present invention.

[0017] Figure 3 This is one of the structural schematic diagrams of the base plate.

[0018] Figure 4 This is the second structural schematic diagram of the base plate.

[0019] Figure 5 This is a structural diagram of the mounting base.

[0020] Figure 6 This is a structural diagram of a makeup mirror.

[0021] Figure 7 This is a schematic diagram of a tablet computer stand.

[0022] The attached diagram is labeled as follows: 1. Mounting base; 11. Hook groove; 12. Elastic anti-slip component; 13. Base; 14. Top cover; 15. Second tooth; 2. Support frame; 3. Ball joint connector; 31. Universal ball joint; 32. Ball joint mating part; 33. Adjustable ball joint fastener; 4. Magnetic phone holder; 41. Anti-slip texture; 5. Tablet stand; 6. Hook; 7. Tightening screw; 71. Base plate; 711. Slot; 712. First tooth; 72. Top plate; 73. Spring; 8. Makeup mirror. Detailed Implementation

[0023] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0024] Example: As attached Figure 1-7 As shown, the present invention relates to a magnetic extension base for a chair back, comprising a mounting base 1 with a hook groove 11, a rotatable support frame 2 on the mounting base 1, and a replaceable functional bracket at the end of the support frame 2 away from the mounting base 1. The functional bracket is connected to the support frame 2 via a ball joint connector 3. The functional bracket includes a magnetic phone holder 4 and a tablet holder 5. Both the magnetic phone holder 4 and the tablet holder 5 can adopt the existing structures of magnetic phone holders and tablet holders. The functional bracket is connected to the support frame 2 via the ball joint connector 3, and the support frame 2 is rotatable, allowing the position and angle of the functional bracket to be adjusted as needed, making it more convenient for users.

[0025] The support frame 2 has hooks 6 on one or both sides, and the hooks 6 are mounted on the mounting base 1. This utility model can be adapted to various functional brackets, which not only have hook functions but can also fix mobile phones, tablets, etc., making it convenient for people to use.

[0026] Preferably, an elastic anti-slip element 12 is provided on the inner wall of the hook groove 11, which can improve the stability of the present invention when installed on the chair back.

[0027] Preferably, to facilitate the manufacture of the mounting base, the mounting base 1 includes a base 13 and an L-shaped upper cover 14, and the upper cover 14 and the base 13 are connected by screws.

[0028] Preferably, in order to facilitate the adjustment of the angle of the support frame, the end of the support frame 2 away from the functional bracket is mounted on the mounting base 1 by a hand screw 7. Loosening the hand screw 7 can adjust the angle of the support frame 2; tightening the hand screw 7 can lock the position of the support frame 2.

[0029] Furthermore, the support frame 2 has a base plate 71 on one side near the mounting base 1 and a top plate 72 on the other side. The base plate 71 has a slot 711 adapted to the support frame 2 on one side near the support frame 2, and a plurality of first teeth 712 arranged in a circular array on the other side. The support frame 2 is inserted into the slot 711, so that the support frame 2 can rotate synchronously with the base plate 71. The mounting base 1 has second teeth 15 adapted to the first teeth 712. The base plate 71, the support frame 2, and the top plate 72 all have through holes adapted to the hand screw 7. A spring 73 is sleeved on the hand screw 7. The spring 73 is located on the side of the top plate 72 away from the support frame 2. Without frequently turning the hand screw 7, the spring 73 provides a pushing force to the top plate 72, so that the first teeth 712 are inserted between two adjacent second teeth 15, locking the position of the support frame 2. The support frame 2 can be rotated directly. When rotating the support frame 2, it is only necessary to overcome the pushing force provided by the spring 73.

[0030] Preferably, the through hole on the support frame 2 is an oblong hole, and the through hole is arranged along the length of the support frame 2 so that the support frame 2 can be adjusted up and down.

[0031] Preferably, the hook 6 is a concealed hook, with a groove on the mounting base 1 that is adapted to the hook 6. The bottom end of the hook 6 is hinged in the groove, and the rotation angle of the hook 6 is less than 90°. When the hook 6 is not in use, it is concealed.

[0032] Preferably, the ball joint connector 3 includes a universal ball joint 31 disposed on the support frame 2, a ball joint fitting 32 disposed on the functional bracket, and a ball joint adjustable fastener 33 sleeved on the ball joint fitting 32 and threadedly connected to the ball joint fitting 32. The ball joint fitting 31 has a spherical cavity inside and a tapered thread on its outer wall. Several notches are provided along its axial direction on the outer wall of the ball joint fitting 31. The ball joint adjustable fastener 33 is a sleeve with a corresponding tapered thread inside.

[0033] Preferably, the magnetic phone holder 4 is provided with a magnet assembly, and the end of the magnetic phone holder 4 away from the support frame 2 is provided with anti-slip texture 41, which can improve the stability of adsorption.

[0034] Preferably, the chair back magnetic extension base also includes a makeup mirror 8 that cooperates with the magnetic phone holder 4. The makeup mirror 8 is provided with a magnetic component, which can be an iron sheet fixed to the rear end face of the makeup mirror 8.

Claims

1. A magnetic extension base for a chair back, comprising a mounting base (1) with a hook groove (11), characterized in that: The mounting base (1) is provided with a rotatable support frame (2). A replaceable functional bracket is provided at one end of the support frame (2) away from the mounting base (1). The functional bracket is connected to the support frame (2) by a ball joint connector (3). The functional bracket includes a magnetic mobile phone holder (4) and a tablet computer holder (5). A hook (6) is provided on one or both sides of the support frame (2). The hook (6) is installed on the mounting base (1).

2. The magnetic extension base for chair back as described in claim 1, characterized in that: An elastic anti-detachment component (12) is provided on the inner wall of the groove (11).

3. The chair back magnetic extension base according to claim 1, characterized in that: The mounting base (1) includes a base (13) and an L-shaped upper cover (14), which is connected to the base (13) by screws.

4. The chair back magnetic extension base according to claim 1, characterized in that: The support frame (2) is mounted on the mounting base (1) at the end away from the functional support by a hand-tightened screw (7).

5. The magnetic extension base for chair backs according to claim 4, characterized in that: The support frame (2) has a base plate (71) on one side near the mounting base (1) and a top plate (72) on the other side. The base plate (71) has a slot (711) adapted to the support frame (2) on one side near the support frame (2), and a number of first teeth (712) are arranged in a circular array on the other side. The mounting base (1) has second teeth (15) adapted to the first teeth (712). The base plate (71), support frame (2), and top plate (72) all have through holes adapted to the hand screw (7). The hand screw (7) is fitted with a spring (73), and the spring (73) is located on the side of the top plate (72) away from the support frame (2).

6. The chair back magnetic extension base according to claim 5, characterized in that: The through hole on the support frame (2) is a waist-shaped hole.

7. The magnetic extension base for chair backs according to claim 1, characterized in that: The hook (6) is a hidden hook. A groove adapted to the hook (6) is provided on the mounting base (1). The bottom end of the hook (6) is hinged in the groove, and the rotation angle of the hook (6) is less than 90°.

8. The magnetic extension base for chair backs according to claim 1, characterized in that: The ball joint connector (3) includes a universal ball joint (31) disposed on the support frame (2), a ball joint fitting (32) disposed on the functional support, and a ball joint adjustable fastener (33) sleeved on the ball joint fitting (32) and threadedly connected to the ball joint fitting (32).

9. The magnetic extension base for chair backs according to claim 1, characterized in that: The magnetic phone holder (4) is equipped with a magnet assembly, and the end of the magnetic phone holder (4) away from the support frame (2) is provided with anti-slip texture (41).

10. The magnetic extension base for chair backs according to claim 1, characterized in that: The chair back magnetic extension base also includes a makeup mirror (8) that works with the magnetic phone holder (4), and the makeup mirror (8) is provided with a magnetic component.

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