A rotatable adjustable suction cup holder

Abstract

This utility model discloses a rotatable and adjustable suction cup bracket, including a suction cup body, a pressure plate, a support body, and a knob. The suction cup body includes a suction cup mounting frame and a suction cup, with a connector attached to the top of the suction cup. The pressure plate is fixedly connected to the top of the suction cup mounting frame via a locking member. The support body is rotatably mounted between the bottom of the pressure plate and the top of the suction cup mounting frame, and is used to support electronic equipment. The support body includes a flexible metal plate and a soft rubber covering the flexible metal plate. At least one of the following is provided: between the top of the soft rubber and the bottom of the pressure plate, or between the top of the suction cup mounting frame and the bottom of the soft rubber, a resistance structure is provided to fix the support body in its current position. The knob is rotatably mounted on the top of the suction cup mounting frame and is connected to the connector. The overall structure is more compact, making the suction cup adsorption more stable. The resistance structure allows the support body to be fixed in its current position after the angle is adjusted, making it less likely to be easily rotated by external forces.

Description

Technical Field

[0001] This utility model relates to the field of suction cup holders, and in particular to a rotatable and adjustable suction cup holder. Background Technology

[0002] A suction cup holder is a type of holder that uses a suction cup to adhere to a smooth surface. It is mainly used to hold electronic products such as mobile phones and tablets. The suction cup is connected to a knob. Rotating the knob drives the suction cup to lift and expel the internal air, thereby achieving adhesion and fixation.

[0003] In the prior art, a rotatable and adjustable suction cup holder is disclosed, including a suction cup, a suction cup support seat disposed on the top surface of the suction cup for supporting the suction cup, and a rotating component disposed above the suction cup support seat. The rotating component drives the suction cup to rise and fall for adsorption. A top cover is provided on the top of the rotating component and is rotatably connected to the suction cup support seat. A flexible metal tube is fixedly connected to the top cover. The angle of the bracket to be installed on the flexible metal tube can be adjusted by rotating the top cover, and the height position of the bracket to be installed on the flexible metal tube can be adjusted by bending the flexible metal tube. However, in this structure, the rotation of the flexible metal tube is achieved by rotating the top cover. The top cover is located above the knob, which increases the thickness of the entire suction cup holder, thereby increasing the weight of the entire suction cup holder. When the suction cup holder is used to hold a mobile phone, the force point of the flexible metal tube is applied to the top cover. The distance between this force point and the suction cup is relatively far, which makes the suction cup holder prone to tipping over when a mobile phone is placed on it. The adsorption stability is poor, which affects the user experience.

[0004] Therefore, it is necessary to design a new technical solution to solve the above problems. Utility Model Content

[0005] In view of the above, this utility model addresses the deficiencies of the existing technology by providing a rotatable and adjustable suction cup bracket. A pressure plate is fixedly connected to the top of the suction cup mounting frame, and the support body is rotatably mounted between the bottom of the pressure plate and the top of the suction cup mounting frame. This allows the support body to be rotated and adjusted at an adjustable angle without the need for an additional top cover to rotate the support body, resulting in a more compact overall structure. Furthermore, when the support body is equipped with electronic equipment, the force point on the end of the support body closest to the suction cup mounting frame is positioned close to the frame. Compared to existing structures, the suction cup is less likely to be dislodged by the electronic equipment, making the suction cup more secure. The design is ingenious. Additionally, a resistance structure is provided between the soft rubber and the bottom of the pressure plate and / or the top of the suction cup mounting frame to fix the support body in its current position. This resistance structure ensures that the support body remains fixed in its current position after angle adjustment, preventing it from being easily rotated by external forces.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rotatable and adjustable suction cup holder, comprising:

[0008] The suction cup body includes a suction cup mounting frame and a suction cup disposed at the bottom of the suction cup mounting frame, and a connector is connected to the top of the suction cup;

[0009] A pressure plate, which is fixedly connected to the top of the suction cup mounting bracket by a locking device;

[0010] A support body is rotatably mounted between the bottom of the pressure plate and the top of the suction cup mounting bracket, and is used to support electronic devices. The support body includes a flexible metal plate and a soft rubber wrapped around the flexible metal plate. At least one of the following is provided: between the top of the soft rubber and the bottom of the pressure plate, and between the top of the suction cup mounting bracket and the bottom of the soft rubber, a resistance structure is provided for fixing the support body in the current position.

[0011] A knob is rotatably mounted on the top of the suction cup mounting bracket and located above the pressure plate, and the knob is connected to the connector.

[0012] As a preferred embodiment, the resistance structure includes a toothed groove disposed on the top of the soft rubber and an elastic locking protrusion disposed on the bottom of the pressure plate. Multiple toothed grooves are provided, and the multiple toothed grooves are arranged circumferentially along the axis of the suction cup body. The elastic locking protrusion can be selectively locked in the toothed groove.

[0013] or,

[0014] The resistance structure includes a rubber block disposed on the top of the soft rubber and an arc-shaped groove disposed on the bottom of the pressure plate, wherein the rubber block presses against the arc-shaped groove.

[0015] As a preferred embodiment, the top of the suction cup mounting bracket is provided with a protruding rib that presses against the soft rubber.

[0016] As a preferred embodiment, the suction cup mounting bracket has a first annular groove recessed downward on the top outer periphery, the support body has a connecting end and a supporting end, the connecting end is provided with a through hole, and the connecting end is rotatably mounted to the first annular groove through the through hole.

[0017] As a preferred embodiment, the end of the connecting end near the supporting end is connected to an extension, the supporting end is located at the end of the extension away from the connecting end, the connecting end of the flexible metal plate is annularly arranged and has a protruding bulge, the bulge is located at the connection between the connecting end of the flexible metal plate and the extension of the flexible metal plate, and the bottom of the bulge is recessed upward from the bottom of the flexible metal plate.

[0018] As a preferred embodiment, the flexible metal plate has an adhesive passage hole that connects to the through hole, located on the side of the through hole along its axis of symmetry.

[0019] As a preferred embodiment, the remaining portion of the connecting end of the flexible metal plate is provided with the convex bulge.

[0020] As a preferred embodiment, the suction cup mounting bracket has a through hole at its top center. The connector passes through the through hole and connects to the knob. The top of the suction cup mounting bracket has a positioning boss protruding from the outer periphery of the through hole. Correspondingly, the bottom of the knob has a positioning groove that matches the positioning boss. The knob is rotatably mounted on the top of the suction cup mounting bracket through the cooperation of the positioning groove and the positioning boss.

[0021] As a preferred embodiment, the bottom of the knob is recessed upwards and has a second annular groove spaced apart from the positioning groove. The pressure plate is accommodated in the second annular groove. An elastic pressing structure is provided between the knob and the pressure plate. The elastic pressing structure includes an elastic retaining member and an inner tooth. The elastic retaining member is disposed on the top of the pressure plate. The top wall of the second annular groove is provided with a downwardly protruding annular wall. The inner tooth is disposed on the annular wall. The elastic retaining member can be selectively engaged with the inner tooth.

[0022] As a preferred embodiment, the top of the knob is recessed downwards and has at least one arc-shaped guide groove communicating with the second annular groove. The top of the pressure plate is protruding and has a guide part adapted to the arc-shaped guide groove. The top of the guide part is connected to an anti-disengagement screw to prevent the knob from disengaging from the pressure plate.

[0023] As a preferred embodiment, an elastic pressing structure is provided between the knob and the pressure plate. The elastic pressing structure includes a ball and multiple recesses. The ball is disposed on the top of the pressure plate, and the multiple recesses are disposed within the knob. The ball can be selectively engaged in the recesses.

[0024] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0025] The main feature is that a pressure plate is fixedly connected to the top of the suction cup mounting bracket, and the support body is rotatably installed between the bottom of the pressure plate and the top of the suction cup mounting bracket. This allows the support body to be rotated and adjusted at an angle without the need for an additional top cover to rotate the support body. The overall structure is more compact. At the same time, after the support body is equipped with electronic equipment, the force point on the end of the support body near the suction cup mounting bracket is set close to the suction cup mounting bracket. Compared with the existing structure, the suction cup is less likely to be driven off by the electronic equipment, making the suction cup adsorption more stable. The design is ingenious. In addition, a resistance structure is set between the soft rubber and the bottom of the pressure plate and / or the top of the suction cup mounting bracket to fix the support body in the current position. The resistance structure ensures that the support body can be fixed in the current position after the angle is adjusted, and it is not easy for external forces to drive the support body to rotate.

[0026] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0027] Figure 1 This is a perspective view of a preferred embodiment of the present invention;

[0028] Figure 2 This is an exploded view of a preferred embodiment of the present invention;

[0029] Figure 3 This is another exploded view of a preferred embodiment of the present invention;

[0030] Figure 4 This is another exploded view of a preferred embodiment of the present utility model;

[0031] Figure 5 This is a cross-sectional schematic diagram of a preferred embodiment of the present invention;

[0032] Figure 6 This is an exploded view of the supporting body of a preferred embodiment of the present utility model;

[0033] Figure 7 This is an exploded view of the supporting body of a preferred embodiment of the present invention from another perspective.

[0034] Figure 8 This is a cross-sectional schematic diagram of a preferred embodiment of the present invention.

[0035] Explanation of reference numerals in the attached diagram:

[0036] 10. Suction cup body; 11. Suction cup mounting bracket;

[0037] 111. Through hole; 112. Positioning pin;

[0038] 113. First annular groove; 114. Protruding rib;

[0039] 115. Positioning boss; 12. Suction cup;

[0040] 121. Connecting component; 122. Limiting rod;

[0041] 123. External thread section;

[0042] 20. Pressure plate; 21. Positioning hole;

[0043] 22. Guide section; 23. Anti-loosening screw;

[0044] 30. Supporting structure;

[0045] 31. Flexible metal sheet; 32. Soft rubber;

[0046] 301. Connecting end; 302. Supporting end;

[0047] 303. Through hole; 304. Extension;

[0048] 305, convex bulge; 306, through hole;

[0049] 307. Through hole; 40. Knob;

[0050] 41. Cover plate;

[0051] 401. Positioning groove; 402. Second annular groove;

[0052] 403. Annular wall; 404. Arc-shaped guide groove;

[0053] 405. Mounting groove; 406. Arc-shaped protrusion;

[0054] 407. Internal threaded part; 50. Screw;

[0055] 60. Resistance structure; 61. Tooth groove;

[0056] 62. Elastic protrusion; 63. Glue block;

[0057] 64. Arc-shaped groove; 621. Elastic part;

[0058] 622. Projection; 70. Magnetic base;

[0059] 80. Elastic pressure-resistant structure; 81. Elastic retaining element;

[0060] 811. Clamping teeth; 812. Spring;

[0061] 82. Internal teeth; 83. Marble;

[0062] 84. Concave position. Detailed Implementation

[0063] First, it should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0064] Please refer to Figures 1 to 7 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a suction cup body 10, a pressure plate 20, a support body 30, and a knob 40.

[0065] The suction cup body 10 includes a suction cup mounting bracket 11 and a suction cup 12 disposed at the bottom of the suction cup mounting bracket 11; specifically, see [reference needed]. Figure 5 As shown, the suction cup mounting bracket 11 has a through hole 111 at the top center, and the suction cup 12 is connected to a connector 121 that passes through the through hole 111 and is connected to the knob 40. The connector 121 is provided with a limiting rod 122.

[0066] The pressure plate 20 is fixedly connected to the top of the suction cup mounting bracket 11; specifically, see [reference needed]. Figure 3 As shown, the top of the suction cup mounting bracket 11 is provided with a positioning post 112 for positioning the pressure plate 20. The pressure plate 20 is provided with a positioning hole 21 that matches the positioning post 112. The pressure plate 20 is positioned on the top of the suction cup mounting bracket 11 through the cooperation of the positioning post 112 and the positioning hole 21, and is fixed to the top of the suction cup mounting bracket 11 by a locking member 50. The locking member 50 can be a screw. The setting of the positioning post 112 and the positioning hole 21 allows the pressure plate 20 to be quickly positioned on the suction cup mounting bracket 11, and allows the locking member 50 to be directly aligned with the screw hole to quickly lock the pressure plate 20 on the suction cup mounting bracket 11, making assembly more convenient. The pressure plate 20 is fixedly connected to the top of the suction cup mounting bracket 11 by the locking member 50. The locking member 50 can press the pressure plate 20 toward the suction cup mounting bracket 11. By adjusting the tightness of the locking member 50, the friction between the support body 30 and the pressure plate 20 and the suction cup mounting bracket 11 can be adjusted.

[0067] The support body 30 is rotatably mounted between the bottom of the pressure plate 20 and the top of the suction cup mounting bracket 11, and is used to support electronic devices. The support body 30 includes a flexible metal plate 31 and a soft rubber 32 wrapped around the flexible metal plate 31. At least one of the top of the soft rubber 32 and the bottom of the pressure plate 20 and the top of the suction cup mounting bracket 11 and the bottom of the soft rubber 32 is provided with a resistance structure 60 for fixing the support body 30 in the current position.

[0068] Specifically, see Figure 2 and Figure 3 As shown, the resistance structure 60 includes a toothed groove 61 disposed on the top of the soft rubber 32 and an elastic locking protrusion 62 disposed on the bottom of the pressure plate 20. Multiple toothed grooves 61 are provided, arranged circumferentially along the axis of the suction cup body 10. The elastic locking protrusion 62 can be selectively locked into the toothed groove 61. In this embodiment, three elastic locking protrusions 62 are arranged circumferentially along the axis of the suction cup body 10. The number of elastic locking protrusions 62 is not limited to this. The elastic locking protrusion 62 includes an elastic part 621 connected to the pressure plate 20 and a protrusion 622 disposed on the elastic part 621 that matches the toothed groove 61. The protrusion 622 is locked into the toothed groove 61, which can restrict the rotation of the support body 30, making it difficult for the support body 30 to be easily rotated by external forces. When it is necessary to rotate and adjust the angle of the support body 30, the support body 30 is driven to overcome the elastic force of the elastic part 621, so that the protrusion 622 is locked into another toothed groove 61.

[0069] See Figure 5 As shown, the suction cup mounting bracket 11 has a first annular groove 113 recessed downward on the outer periphery of its top. The support body 30 has a connecting end 301 and a support end 302. The connecting end 301 is provided with a through hole 303. The connecting end 301 is rotatably mounted on the first annular groove 113 through the through hole 303. The through hole 303 allows the support body 30 to be directly fitted onto the suction cup mounting bracket 11, effectively utilizing the space on the suction cup mounting bracket 11 and making the overall structure more compact. A magnetic base 70 can be provided on the support end 302. The magnetic base 70 is used to support electronic devices, and a clamping base can also be provided to support electronic devices. Preferably, the top of the suction cup mounting bracket 11 has a protruding rib 114 that abuts against the soft rubber 32. The protruding rib 114 can further increase the holding force on the support body 30 and further ensure that the support body 30 is not easily rotated by external forces.

[0070] See Figure 6 and Figure 7As shown, the end of the connecting end 301 near the supporting end 302 is connected to an extension 304. The supporting end 302 is located at the end of the extension 304 away from the connecting end 301. The connecting end 301 of the flexible metal plate 31 is arranged in a ring shape, and a protrusion 305 is provided at least at the connection between the connecting end 301 of the flexible metal plate 31 and the extension 304 of the flexible metal plate 31. The bottom of the protrusion 305 is recessed upward from the bottom of the flexible metal plate 31, and the soft adhesive 32 can fill the bottom of the protrusion 305.

[0071] Specifically, four protrusions 305 are provided. Two of the four protrusions 305 are spaced apart at the connection between the connecting end 301 of the flexible metal plate 31 and the extension 304 of the flexible metal plate 31. The other two are arranged on the remaining part of the connecting end 301 of the flexible metal plate 31. The number of protrusions 305 is not limited to this. The protrusions 305 can strengthen the structural strength of the connecting end 301 of the flexible metal plate 31, making it less likely for the connecting end 301 of the flexible metal plate 31 to warp during use, thus preventing the entire support body 30 from rotating. They also prevent the connection between the connecting end 301 of the flexible metal plate 31 and the extension 304 from breaking due to the bending of the extension 304. On the other hand, they allow the soft rubber 32 to flow into the bottom of the protrusions 305 during molding, thereby strengthening the bonding strength between the soft rubber 32 and the flexible metal plate 31.

[0072] The flexible metal plate 31 has a through hole 306 on the side of the through hole 303, which is located on the axis of symmetry. The soft glue 32 can fill the through hole 306. The through hole 306 allows the soft glue 32 to flow from the top of the flexible metal plate 31 to the bottom of the flexible metal plate 31 during molding. The fact that it is located on the axis of symmetry ensures that the molded soft glue 32 can be evenly distributed on the flexible metal plate 31.

[0073] Furthermore, a through hole 307 is provided at the connecting end 301 of the flexible metal plate 31. The through hole 307 allows the soft adhesive 32 to flow into the through hole 307 during molding, thereby further strengthening the bonding strength between the soft adhesive 32 and the flexible metal plate 31.

[0074] The knob 40 is rotatably mounted on the top of the suction cup mounting bracket 11 and located above the pressure plate 20. The knob 40 is connected to the suction cup 12 and can drive the suction cup 12 to rise and fall. An elastic pressing structure 80 is provided between the knob 40 and the pressure plate 20.

[0075] Specifically, see Figure 2 and Figure 5As shown, the top of the suction cup mounting bracket 11 has a positioning boss 115 protruding from the outer periphery of the through hole 111. Correspondingly, the bottom of the knob 40 has a positioning groove 401 that matches the positioning boss 115. The knob 40 is rotatably mounted on the top of the suction cup mounting bracket 11 through the cooperation of the positioning groove 401 and the positioning boss 115. The cooperation of the positioning groove 401 and the positioning boss 115 makes the knob 40 rotatably mounted on the suction cup mounting bracket 11.

[0076] See Figure 3 and Figure 4 As shown, the bottom of the knob 40 is recessed upwards with a second annular groove 402 that is spaced apart from the positioning groove 401. The pressure plate 20 is housed in the second annular groove 402. The second annular groove 402 allows the pressure plate 20 to be hidden in the knob 40, making the structure more aesthetically pleasing and making full use of the space inside the knob 40, resulting in a more compact overall structure. The elastic pressing structure 80 includes an elastic retaining member 81 and an inner tooth 82. The elastic retaining member 81 is located on the top of the pressure plate 20. The top wall of the second annular groove 402 is provided with an annular wall 403 that protrudes downwards. The inner tooth 82 is located on the annular wall 403. The elastic retaining member 81 can be selectively engaged with the inner tooth 82. The elastic retaining member 81 includes a retaining tooth 811 and a spring 812 that drives the retaining tooth 811 to press. The retaining tooth 811 is engaged with the inner tooth 82. When the adjustment knob 40 is rotated, a "click-click-click" sound is produced, improving the user experience.

[0077] See Figure 2 and Figure 3 As shown, the top of the knob 40 is recessed downwards and has at least one arc-shaped guide groove 404 communicating with the second annular groove 402. The top of the pressure plate 20 is protruding and has a guide part 22 adapted to the arc-shaped guide groove 404. The top of the guide part 22 is connected to an anti-disengagement screw 23 for preventing the knob 40 from disengaging from the pressure plate 20. The arc-shaped guide groove 404 limits the rotation stroke of the knob 40, ensuring that the knob 40 will not rotate excessively. A connecting hole 111 is provided on the top of the knob 40. The mounting groove 405 has an arc-shaped protrusion 406 inside for guiding the suction cup 12 to rise and fall. The limiting rod 122 is located in the mounting groove 405 and abuts against the arc-shaped protrusion 406. Driving the knob 40 to rotate causes the limiting rod 122 to slide on the arc-shaped protrusion 406, thereby driving the suction cup 12 to rise and fall. The arc-shaped protrusion 406 limits the stroke of the suction cup 12. The arc-shaped guide groove 404 and the arc-shaped protrusion 406 work together to ensure that the suction cup 12 can be firmly attached and installed.

[0078] In this embodiment, the arc-shaped guide groove 404 is provided with three circumferentially arranged along the axis of the suction cup body 10. Correspondingly, the guide part 22 and the anti-detachment screw 23 are each provided with three. The arc-shaped protrusion 406 is provided with two. Both ends of the limiting rod 122 extend beyond the connector 121 and abut against the corresponding arc-shaped protrusion 406. The top of the knob 40 is provided with a cover plate 41 for covering the arc-shaped guide groove 404 and the mounting groove 405.

[0079] Please refer to Figure 8 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, which is substantially the same as that of embodiment one, except that:

[0080] In this embodiment, the resistance structure 60 includes a rubber block 63 disposed on the top of the soft rubber 32 and an arc-shaped placement groove 64 disposed on the bottom of the pressure plate 20. The rubber block 63 presses against the arc-shaped placement groove 64. Both the rubber block 63 and the arc-shaped placement groove 64 are provided with multiple ones arranged circumferentially along the axis of the suction cup body. The rubber block 63 and the arc-shaped placement groove 64 are connected by friction to increase the frictional resistance between the soft rubber 32 and the pressure plate 20, making the support body 30 less likely to be easily rotated.

[0081] The elastic pressing structure 80 includes a ball 83 and a plurality of recesses 84. The ball 83 is disposed on the top of the pressure plate 20, and the plurality of recesses 84 are disposed in the knob 40. The ball 83 can be selectively locked in the recesses 84.

[0082] The outer periphery of the connector 121 is provided with an external thread 123, and correspondingly, the knob 40 is provided with an internal thread 407. The knob 40 is connected to the suction cup 12 through the cooperation of the external thread 123 and the internal thread 407.

[0083] The key design feature of this utility model is:

[0084] The main feature is that a pressure plate is fixedly connected to the top of the suction cup mounting bracket, and the support body is rotatably installed between the bottom of the pressure plate and the top of the suction cup mounting bracket. This allows the support body to be rotated and adjusted at an angle without the need for an additional top cover to rotate the support body. The overall structure is more compact. At the same time, after the support body is equipped with electronic equipment, the force point on the end of the support body near the suction cup mounting bracket is set close to the suction cup mounting bracket. Compared with the existing structure, the suction cup is less likely to be driven off by the electronic equipment, making the suction cup adsorption more stable. The design is ingenious. In addition, a resistance structure is set between the soft rubber and the bottom of the pressure plate and / or the top of the suction cup mounting bracket to fix the support body in the current position. The resistance structure ensures that the support body can be fixed in the current position after the angle is adjusted, and it is not easy for external forces to drive the support body to rotate.

[0085] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A rotatable and adjustable suction cup holder, characterized in that, include: The suction cup body includes a suction cup mounting frame and a suction cup disposed at the bottom of the suction cup mounting frame, and a connector is connected to the top of the suction cup; A pressure plate, which is fixedly connected to the top of the suction cup mounting bracket by a locking device; A support body is rotatably mounted between the bottom of the pressure plate and the top of the suction cup mounting bracket, and is used to support electronic devices. The support body includes a flexible metal plate and a soft rubber wrapped around the flexible metal plate. At least one of the following is provided: between the top of the soft rubber and the bottom of the pressure plate, and between the top of the suction cup mounting bracket and the bottom of the soft rubber, a resistance structure is provided for fixing the support body in the current position. A knob is rotatably mounted on the top of the suction cup mounting bracket and located above the pressure plate, and the knob is connected to the connector.

2. The rotatable and adjustable suction cup holder according to claim 1, characterized in that: The resistance structure includes a toothed groove on the top of the soft rubber and an elastic locking protrusion on the bottom of the pressure plate. Multiple toothed grooves are provided and arranged circumferentially along the axis of the suction cup body. The elastic locking protrusion can be selectively locked in the toothed groove. or, The resistance structure includes a rubber block disposed on the top of the soft rubber and an arc-shaped groove disposed on the bottom of the pressure plate, wherein the rubber block presses against the arc-shaped groove.

3. The rotatable and adjustable suction cup holder according to claim 2, characterized in that: The top of the suction cup mounting bracket has protruding ribs that press against the soft rubber.

4. A rotatable and adjustable suction cup holder according to any one of claims 1 to 3, characterized in that: The suction cup mounting bracket has a first annular groove recessed downward on the top outer periphery. The support body has a connecting end and a supporting end. The connecting end is provided with a through hole, and the connecting end is rotatably mounted in the first annular groove through the through hole.

5. The rotatable and adjustable suction cup holder according to claim 4, characterized in that: An extension is connected to one end of the connecting end near the supporting end. The supporting end is located at the end of the extension away from the connecting end. The connecting end of the flexible metal plate is annularly arranged and has a protruding bulge. The bulge is located at the connection between the connecting end of the flexible metal plate and the extension of the flexible metal plate. The bottom of the bulge is recessed upward from the bottom of the flexible metal plate.

6. The rotatable and adjustable suction cup holder according to claim 5, characterized in that: The flexible metal plate has an adhesive passage hole that connects to the through hole, located on the side of the through hole, with the axis of symmetry of the plate being located on the side of the through hole.

7. The rotatable and adjustable suction cup holder according to claim 5, characterized in that: The remaining portion of the connecting end of the flexible metal plate is provided with the convex bulge.

8. The rotatable and adjustable suction cup holder according to claim 1, characterized in that: The suction cup mounting bracket has a through hole at its top center. The connector passes through the through hole and connects to the knob. The top of the suction cup mounting bracket has a positioning boss protruding from the outer periphery of the through hole. Correspondingly, the bottom of the knob has a positioning groove that matches the positioning boss. The knob is rotatably mounted on the top of the suction cup mounting bracket through the cooperation of the positioning groove and the positioning boss.

9. A rotatable and adjustable suction cup holder according to claim 8, characterized in that: The bottom of the knob is recessed upwards and has a second annular groove that is spaced apart from the positioning groove. The pressure plate is housed in the second annular groove. An elastic pressing structure is provided between the knob and the pressure plate. The elastic pressing structure includes an elastic retaining member and an inner tooth. The elastic retaining member is located on the top of the pressure plate. The top wall of the second annular groove has a downward-protruding annular wall. The inner tooth is located on the annular wall. The elastic retaining member can be selectively engaged with the inner tooth.

10. A rotatable and adjustable suction cup holder according to claim 9, characterized in that: The top of the knob is recessed downwards and has at least one arc-shaped guide groove communicating with the second annular groove. The top of the pressure plate is protruding and has a guide part adapted to the arc-shaped guide groove. The top of the guide part is connected to an anti-detachment screw to prevent the knob from detaching from the pressure plate.

11. The rotatable and adjustable suction cup holder according to claim 1, characterized in that: An elastic pressing structure is provided between the knob and the pressure plate. The elastic pressing structure includes a ball and multiple recesses. The ball is located on the top of the pressure plate, and the multiple recesses are located inside the knob. The ball can be selectively locked into the recesses.

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