Punching-free suction cup and wall-mounted storage rack

By designing a straight groove on the non-drillable suction cup to contact the straight hanging rod surface of the shelf, the problem of needing multiple suction cups for fixation and limited range of movement in the existing technology is solved, achieving the effect of a single suction cup being stable and flexible.

CN224251140UActive Publication Date: 2026-05-19JIAJIAXING PLASTIC PRODUCTS FACTORY CHAOAN DISTRICT CHAOZHOU CITY (SOLE PROPRIETORSHIP)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIAJIAXING PLASTIC PRODUCTS FACTORY CHAOAN DISTRICT CHAOZHOU CITY (SOLE PROPRIETORSHIP)
Filing Date
2025-07-02
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing no-drill suction cups require at least two points of contact to stably mount shelves, and the shelves have limited range of motion, making it difficult to flexibly adapt to different space requirements.

Method used

It uses a no-drill suction cup with a straight groove. The straight groove makes surface contact with the straight hanging rod of the shelf, reducing the amount of suction cup used, and the design of the straight groove allows the shelf to move flexibly.

Benefits of technology

A single suction cup is all it takes to secure the shelf, which can move horizontally along a straight groove, expanding its range of motion and adapting to different space requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a punching-free suction cup and a wall-mounted storage rack. The punching-free suction cup comprises a film, a cup body and a cover body. One side surface of the film is a smooth surface, and a screw is arranged in the middle of the other side surface and is perpendicular to the film; the disc body is arranged between the film and the cover body; a first through hole is formed in the middle of the disc body; the screw of the film penetrates through the first through hole of the disc body and is in threaded connection with the cover body, and the film is pressed by the disc body by rotating the cover body; a linear groove is formed in the side, facing the cover body, of the disc body, the extending direction of the linear groove is parallel to the disc body, and the opening direction of the linear groove is perpendicular to the disc body. The linear groove of the tray body is in surface contact with the linear hanging rod of the storage rack, so that the storage rack can be fixed only by using one suction cup, and the use amount of the suction cups is reduced; according to the storage rack, only one suction cup is adopted, the linear hanging rod of the storage rack can horizontally move on the linear groove of the disc body, the movable range is larger, and different space requirements can be more flexibly met.
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Description

Technical Field

[0001] This utility model relates to the field of home furnishing product technology, specifically to a no-drill suction cup and a wall-mounted shelf. Background Technology

[0002] In daily life, many people use wall-mounted shelves to make full use of limited home space.

[0003] In the past, installation methods often required nailing two screws to the wall first, and then hanging the shelf on both screws to complete the installation. However, this method ruined the aesthetics of the wall and easily led to a bad experience.

[0004] Later, people invented no-drill suction cups to replace traditional screws, which allowed shelves to be installed without damaging the wall.

[0005] Existing technology discloses a no-drill suction cup, including a film, a disc body, and a cover. One side of the film is smooth, and a screw is located in the center of the other side, perpendicular to the film. The disc body is located between the film and the cover, and has a through hole in the center. The screw of the film passes through the through hole and is threaded to the cover. Rotating the cover causes the disc body to press the film tightly. A hook is provided on the side of the disc body facing the cover. In use, two suction cups are installed at intervals on the wall, and then a shelf with a straight hanging rod is hung on the hooks of the two suction cups simultaneously to install the shelf on the wall.

[0006] It has the following technical problems:

[0007] The suction cup hooks only make point contact with the straight hanging rod of the shelf, so at least two suction cups must be used to stably install the shelf. After the shelf is installed, the range of movement of the shelf is limited by the fixed position of the two suction cups, making it difficult to flexibly adapt to different space requirements without adjusting the position and reinstalling the suction cups. Utility Model Content

[0008] To address the problems existing in the prior art, the purpose of this utility model is to provide a suction cup and wall-mounted shelf that does not require drilling, which reduces the amount of suction cups used to install the shelf. The shelf has a large range of motion and can flexibly adapt to different space requirements.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A punch-free suction cup includes a film, a disc body, and a cover body;

[0011] One side of the film is smooth, and a screw is located in the middle of the other side, with the screw perpendicular to the film.

[0012] The disc body is located between the film and the cover body, and the disc body has a first through hole in the middle;

[0013] The screw of the film is inserted through the first through hole of the disc body and threaded to the cover body. The disc body is pressed tightly against the film by rotating the cover body.

[0014] A straight groove is provided on the side of the disc facing the cover. The straight groove extends parallel to the disc and opens perpendicular to the disc.

[0015] Furthermore, at least two straight grooves are provided, and the at least two straight grooves are parallel to each other and have different groove diameters.

[0016] Furthermore, a protrusion is provided on the outer side of the straight groove.

[0017] Furthermore, the straight groove is provided with a second through hole, which corresponds to the protrusion.

[0018] Furthermore, the bottom of the straight groove is arc-shaped.

[0019] Furthermore, the cover includes a rotating ring and a circular tube portion disposed within the rotating ring. The circular tube portion is provided with an internal thread that matches the screw, and the circular tube portion is vertically connected to the center of the rotating ring.

[0020] Furthermore, the outer side of the rotating ring is provided with an anti-slip structure.

[0021] Furthermore, the rotating annular portion covers the straight groove.

[0022] Furthermore, reinforcing ribs are provided in the middle of the film and disc and on the outer side of the cylindrical part.

[0023] A wall-mounted shelf includes a shelf and the aforementioned drill-free suction cup;

[0024] The top of the shelf is equipped with a straight hanging rod, which matches the straight groove of the no-drill suction cup, and the straight hanging rod is snapped into the straight groove.

[0025] In summary, this utility model has the following advantages:

[0026] Compared to traditional suction cups where the hooks and the straight hanging rods of shelves only make point contact, requiring at least two suction cups to stably mount the shelf, the straight grooves on the suction cup body of this application make surface contact with the straight hanging rods of the shelf. Therefore, only one suction cup is needed to secure the shelf, reducing the number of suction cups required. Compared to shelves that are limited in their movable range due to the fixed positions of two traditional suction cups, this application uses only one suction cup, allowing the straight hanging rods of the shelf to move horizontally on the straight grooves of the suction cup body, resulting in a larger movable range. This allows for more flexible adaptation to different space requirements without needing to adjust the position and reinstall the suction cups. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the punch-free suction cup of this utility model;

[0028] Figure 2 This is a schematic diagram of the punch-free suction cup of this utility model without the cover.

[0029] Figure 3 This is a schematic diagram of the structure of the film of this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the disc body of this utility model;

[0031] Figure 5 This is a schematic diagram of the disc body of this utility model from another perspective;

[0032] Figure 6 This is a schematic diagram of the structure of the cover of this utility model;

[0033] Figure 7 A schematic diagram of a wall-mounted shelf using a no-drill suction cup;

[0034] Figure 8 A schematic diagram of a wall-mounted shelf using two no-drill suction cups;

[0035] In the picture:

[0036] 1- No-drill suction cup;

[0037] 2-Film, 21-Screw, 22-Reinforced base;

[0038] 3-Disc body, 31-First through hole, 32-Straight groove, 33-Protrusion, 34-Second through hole, 35-Reinforcing rib;

[0039] 4-Cover body, 41-Rotating ring, 411-Arc-shaped recess, 42-Circular tube section, 421-Internal thread;

[0040] 5-Shelf, 51-Straight hanging rod. Detailed Implementation

[0041] The present invention will now be described in further detail.

[0042] like Figure 1 , Figure 2 As shown, a non-drillable suction cup 1 includes a film 2, a disc body 3, and a cover body 4, which are connected in sequence.

[0043] like Figure 3As shown, the film 2 is made of a soft material. One side of it is smooth and is used to contact and adhere to the wall. The other side is frosted and has a screw 21 in the middle, which is perpendicular to the film 2.

[0044] Preferably, a reinforcing base 22 is provided in the middle of the film 2, and the bottom of the screw 21 is connected to the reinforcing base 22, which strengthens the connection between the screw 21 and the film 2. The reinforcing base 22 is also provided with reinforcing ribs 35.

[0045] like Figure 4 , Figure 5 As shown, the disc body 3 is located between the film 2 and the cover body 4, and a first through hole 31 is provided in the middle of the disc body 3; the screw 21 of the film 2 passes through the first through hole 31 from one side of the disc body 3 and is threaded to the cover body 4, and the disc body 3 presses the film 2 tightly by rotating the cover body 4. A straight groove 32 is provided on the side of the disc body 3 facing the cover body 4. The extension direction of the straight groove 32 is parallel to the plane of the disc body 3, and the opening direction of the straight groove 32 is perpendicular to the plane of the disc body 3.

[0046] During installation, first clean the installation location on the wall. Then, attach the smooth side of the film 2 to the installation location on the wall. Connect the first through hole 31 of the disc 3 to the screw 21 of the film 2, so that the screw 21 protrudes from the disc 3. The straight groove 32 on the disc 3 faces outward and is kept horizontal. Then, insert the straight hanging rod 51 of the shelf 5 into the straight groove 32 of the disc 3. Screw the cover 4 onto the screw 21. By continuously rotating the cover 4, the cover 4 gradually presses the disc 3 during the rotation on the screw 21, thereby pressing the disc 3 against the film 2, so that the suction cup is adsorbed onto the wall. The shelf 5 can then be securely installed on the wall.

[0047] Compared to traditional suction cups where the hook and the straight hanging rod 51 of the shelf 5 only make point contact, requiring at least two suction cups to stably mount the shelf 5, the straight groove 32 of the disc body 3 in this application makes surface contact with the straight hanging rod 51 of the shelf 5. Therefore, only one suction cup is needed to fix the shelf 5, reducing the number of suction cups used. Compared to the shelf 5 being limited by the fixed position of two traditional suction cups, resulting in a small range of movement, this application uses only one suction cup, allowing the straight hanging rod 51 of the shelf 5 to move horizontally on the straight groove 32 of the disc body 3, resulting in a larger range of movement. This allows for more flexible adaptation to different space requirements without adjusting the position and reinstalling the suction cup.

[0048] Preferably, the film 2, the disc 3, and the cover 4 are all circular.

[0049] Preferably, at least two straight grooves 32 are provided, and the at least two straight grooves 32 are parallel to each other and have different groove diameters. Different groove diameters can accommodate straight hanging rods 51 with different outer diameters, expanding the application range of the shelf 5. In this embodiment, two straight grooves 32 are provided, which can respectively correspond to the installation of straight hanging rods 51 with diameters of 3mm and 4mm. During installation, the position of the straight grooves 32 is usually adjusted to the lower part of the tray body 3.

[0050] like Figure 4 As shown, preferably, the outer side of the straight groove 32 is provided with a protrusion 33, which can prevent the straight rod 51 that is stuck in the straight groove 32 from accidentally coming out; the straight groove 32 is provided with a second through hole 34, which corresponds to the protrusion 33, making it easier to insert the straight rod 51 into the straight groove 32 or to remove the straight rod 51 from the straight groove 32.

[0051] Preferably, the bottom of the straight groove 32 is arc-shaped. Since the cross-section of the straight hanging rod 51 is usually circular, the bottom of the arc-shaped straight groove 32 fits the straight hanging rod 51 more closely, and the installation is more accurate.

[0052] like Figure 5 As shown, the disc body 3 has a reinforcing rib 35 on the side facing the film 2, which enhances the strength of the disc body 3 and extends its service life.

[0053] like Figure 6 As shown, the cover 4 includes a rotating ring 41 and a circular tube 42 that are connected to each other.

[0054] Specifically, the rotating ring 41 is a frustum with an opening at the bottom. After installation, the wider frustum faces the wall, and the narrower frustum faces the user, making it convenient for the user to rotate the cover 4. The outer diameter of the rotating ring 41 is much larger than the outer diameter of the circular tube 42, and the wider rotating ring 41 makes it easier to turn the cover 4.

[0055] The circular tube portion 42 is located inside the rotating ring 41 and is vertically connected to the center of the upper bottom of the rotating ring 41. The height of the circular tube portion 42 is slightly lower than the height of the rotating ring 41. The circular tube portion 42 has an internal thread 421 that matches the screw 21 for connection with the external thread of the screw 21. Multiple reinforcing ribs 35 are provided on the outer side of the circular tube portion 42 to improve strength and extend service life.

[0056] The outer side of the rotating ring 41 is provided with an anti-slip structure to make it easier to twist the cover 4.

[0057] The anti-slip structure can adopt various existing technologies. In this embodiment, the anti-slip structure is a plurality of arc-shaped recesses 411 circumferentially arranged on the outer wall of the rotating ring 41.

[0058] When the cover 4 is screwed onto the disc 3, the rotating ring 41 partially covers the straight groove 32, which not only presses the disc 3 to make the film 2 firmly adhere to the wall, but also prevents the straight hanging rod 51 of the shelf 5 from accidentally coming out of the straight groove 32 of the disc 3.

[0059] This embodiment also provides a wall-mounted shelf, including a shelf 5 and the aforementioned no-drill suction cup 1; the top of the shelf 5 is provided with a straight hanging rod 51, which matches the straight groove 32 of the no-drill suction cup 1, and the straight hanging rod 51 is engaged with the straight groove 32.

[0060] One or at least two of the no-drill suction cups can be used as needed.

[0061] like Figure 7 As shown, when only one no-drill suction cup 1 is used, the number of no-drill suction cups 1 can be saved, and the shelf 5 can move a wider range on the straight groove 32 of the plate body 3.

[0062] like Figure 8 As shown, when using at least two no-drill suction cups 1, more no-drill suction cups 1 can distribute the weight of the shelf 5, increasing its load-bearing capacity. Users can adjust the distance between adjacent no-drill suction cups 1 as needed.

[0063] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A punch-free suction cup, characterized in that: Includes film, disc body, and cover; One side of the film is smooth, and a screw is located in the middle of the other side, with the screw perpendicular to the film. The disc body is located between the film and the cover body, and the disc body has a first through hole in the middle; The screw of the film is inserted through the first through hole of the disc body and threaded to the cover body. The disc body is pressed tightly against the film by rotating the cover body. A straight groove is provided on the side of the disc facing the cover. The straight groove extends parallel to the disc and opens perpendicular to the disc.

2. The non-drilling suction cup according to claim 1, characterized in that: There are at least two straight grooves, and the at least two straight grooves are parallel to each other and have different groove diameters.

3. The punch-free suction cup according to claim 1, characterized in that: The outer side of the straight groove is provided with a protrusion.

4. The non-drilling suction cup according to claim 3, characterized in that: The straight groove is provided with a second through hole, which corresponds to the protrusion.

5. The non-drilling suction cup according to claim 1, characterized in that: The bottom of the straight groove is curved.

6. The non-drilling suction cup according to claim 1, characterized in that: The cover includes a rotating ring and a circular tube portion disposed within the rotating ring. The circular tube portion is provided with an internal thread that matches the screw, and the circular tube portion is vertically connected to the center of the rotating ring.

7. The punch-free suction cup according to claim 6, characterized in that: The outer side of the rotating ring is equipped with an anti-slip structure.

8. The non-drilling suction cup according to claim 6, characterized in that: The rotating annular portion covers the straight groove.

9. The non-drilling suction cup according to claim 6, characterized in that: Reinforcing ribs are provided in the middle of the film and disc and on the outer side of the round tube.

10. A wall-mounted storage rack, characterized in that: Includes a shelf and a punch-free suction cup as described in any one of claims 1-9; The top of the shelf is equipped with a straight hanging rod, which matches the straight groove of the no-drill suction cup, and the straight hanging rod is snapped into the straight groove.