Sucking disc
By combining a rigid backplate with a soft colloid in the suction cup and utilizing a conical flip design, the problem of insufficient air release in existing suction cups is solved, thereby improving the load-bearing capacity and adhesion durability of the suction cup.
Patent Information
- Application Number
- CN202520352849.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The existing suction cups have a concave adhesive surface structure that cannot fully expel air after pressing, resulting in insufficient pressure difference, mediocre adsorption effect, poor load-bearing capacity, and easy failure after a period of use.
Design a suction cup that combines a rigid back plate with a soft colloid. The colloid surface has a conical inclined structure. When pressed, the conical surface flips and adheres to the wall. The vacuum zone exhaust channel design facilitates air expulsion and improves adsorption performance.
By flipping the cone surface to fit against the wall, the suction cup's load-bearing capacity and adsorption capacity are enhanced, improving the adsorption effect and durability, reducing the pressure applied, and enhancing the stability of the adsorption.
Smart Images
Figure CN223635117U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of sucking disc, especially a sucking disc. BACKGROUND
[0002] At present, the glue surface of the sucking disc is provided with a recess structure, the air between the recess structure of the glue surface and the wall surface is extruded by pressing the sucking disc, thereby forming a pressure difference, so that the sucking disc is adsorbed on the wall surface, in the prior art, the recess structure of the glue surface cannot fully discharge air after being pressed, the formed pressure difference is insufficient, the adsorption effect is general, the bearing capacity is poor, the adsorption is not durable, and the sucking disc will fail and fall after being used for a period of time. SUMMARY
[0003] The utility model aims at solving one of the technical problems in the prior art. To this end, the utility model provides a sucking disc, which can solve the problem of general adsorption effect of the sucking disc.
[0004] According to the sucking disc of the first aspect of the utility model, the sucking disc comprises a sucking disc part, the sucking disc part comprises a back plate and a glue body, the glue body is tightly combined with one side of the back plate, the back plate is provided with a connecting part on the other side, the back plate is made of hard material, the glue body is made of soft material, the surface of the glue body for adsorption has a vacuum area and an adsorption area, the adsorption area is arranged around the vacuum area, the adsorption area is a conical surface, and the conical surface is inclined towards the back plate in the direction from outside to inside.
[0005] According to the sucking disc of the utility model, the following beneficial effects are achieved: the glue body is tightly combined with one side of the back plate, so that the hard back plate can provide support and pressure covering force for the soft glue body, the bearing capacity and adsorption capacity of the sucking disc are improved, before the sucking disc part is pressed, the conical surface of the adsorption area has a certain angle with the surface to be installed, the vacuum area is pressed to deform towards the surface to be installed, and at the same time, the conical surface can be turned to be attached to the surface to be installed, by arranging a reserved angle in the adsorption area, the recess part can be deformed to facilitate air discharge of the vacuum area, air can be fully extruded, and the adsorption performance of the sucking disc part is improved.
[0006] According to some embodiments of the utility model, the included angle between the conical surface and the adsorption plane of the sucking disc part is α, and 5°≤α<10°.
[0007] According to some embodiments of the utility model, α=7°-9°.
[0008] According to some embodiments of the utility model, the vacuum area is a recess part.
[0009] According to some embodiments of the utility model, the recess part is a spherical surface.
[0010] According to some embodiments of the present application, a fillet or a chamfer is arranged between the conical surface and the spherical surface.
[0011] According to some embodiments of the present application, the projection area of the adsorption area along the adsorption direction is A, and the projection area of the vacuum area along the adsorption direction is B, and A / B=0.55-0.60.
[0012] According to some embodiments of the present application, the thickness of the vacuum area gradually increases along the radial direction of the chucking member from inside to outside.
[0013] According to some embodiments of the present application, the thickness of the adsorption area gradually decreases along the radial direction of the chucking member from inside to outside.
[0014] According to some embodiments of the present application, the chucking member is in the shape of a disc.
[0015] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0016] The above or additional aspects and advantages of the present application will become apparent from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:
[0017] Figure 1 is a general schematic view of some embodiments of the present application;
[0018] Figure 2 is a schematic view of a colloidal structure;
[0019] Figure 3 is a sectional view of some embodiments of the present application;
[0020] Figure 4 is a schematic view of the dimensional relationship of some embodiments of the present application.
[0021] REFERENCE NUMERALS:
[0022] chucking member 100, back plate 110, connecting portion 111, colloidal body 120, vacuum area 121, spherical surface 1211, adsorption area 122, conical surface 1221, chamfer 1222. DETAILED DESCRIPTION
[0023] The embodiments of the present application will be described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.
[0024] In the description of the utility model, it needs to be understood that, the orientation or positional relation indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" are based on the orientation or positional relation shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the features limited by "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0025] In the description of the utility model, it needs to be understood that, the orientation or positional relation indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" are based on the orientation or positional relation shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the features limited by "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0026] Referring to Figures 1 to 4 , according to the first aspect embodiment of the utility model, a suction cup includes a suction cup piece 100, the suction cup piece 100 includes a back plate 110 and a glue body 120, the glue body 120 is closely combined with one side of the back plate 110, the other side of the back plate 110 is provided with a connecting part 111, the back plate 110 is provided as a hard material piece, the glue body 120 is provided as a soft material piece, the surface of the glue body 120 for adsorption has a vacuum area 121 and an adsorption area 122, the adsorption area 122 is arranged around the vacuum area 121, the vacuum area 121 is provided as a recess, the adsorption area 122 is provided as a conical surface 1221, and the conical surface 1221 is inclined towards the back plate 110 in the direction from outside to inside. The glue body 120 is closely combined with one side of the back plate 110, so that the hard back plate 110 can provide support and pressure covering force for the soft glue body 120, the load-bearing capacity and adsorption capacity of the suction cup can be improved, and before the suction cup piece 100 is pressed, the conical surface 1221 of the adsorption area 122 has a certain angle with the surface to be installed, after the vacuum area 121 is pressed, the recess deforms towards the surface to be installed, and at the same time the conical surface 1221 can be turned over to be attached to the surface to be installed, by setting a reserved angle in the adsorption area 122, the recess can be deformed conveniently, so as to facilitate the pressing and exhaust of the vacuum area 121, air can be squeezed out sufficiently, and the adsorption performance of the suction cup piece 100 is improved.
[0027] Specifically, the colloid 120 can be connected with the back plate 110 in a close manner, which can be bonding or by secondary injection molding, so that the back plate 110 and the colloid 120 can be made into the suction cup piece 100 by the above connection, which is simple in structure and does not need to be assembled with complex accessories, and the other side of the back plate 110 is provided with a connecting part 111, which can be used to place articles or connect hooks, supporting rod pieces and other accessories, so as to expand the use of the suction cup, and the hard back plate 110 can provide support for the soft colloid 120 and improve the bearing capacity of the suction cup, and the back plate 110 can provide a certain pressure covering force for the colloid 120 after being pressed, so as to improve the adsorption performance of the suction cup, and the middle part of the colloid 120 can be provided with a vacuum area 121, and the outer periphery of the vacuum area 121 is provided with an adsorption area 122, before adsorption, the suction cup piece 100 abuts against the wall surface to be installed, at this time, the outer circle of the conical surface 1221 of the adsorption area 122 abuts against the wall surface, the recess and the inwardly inclined conical surface 1221 form a cavity, when pressing, the vacuum area 121 can be pressed, the recess deforms towards the wall surface, the outer circle of the conical surface 1221 extends outward, and the inner circle of the conical surface 1221 is pressed towards the wall surface with the recess, so that the air in the cavity can be fully extruded, if the adsorption area 122 is not provided with the conical surface 1221 but is provided with a plane, when the recess deforms, the plane always abuts against the wall surface, the cavity formed has a small volume and hinders the deformation of the recess, so that the air in the cavity cannot be completely extruded, so that a pressure difference cannot be fully formed, and the adsorption effect is poor compared with the embodiment.
[0028] Referring to Figure 3 and Figure 4 In some embodiments of the utility model, the included angle between the conical surface 1221 and the adsorption plane of the suction cup piece 100 is α, and 5°≤α<10°. Table 1 below is the test data of various diameter suction cup pieces 100:
[0029]
[0030]
[0031] Table 1 Test data of various diameter suction cup pieces
[0032] Specifically, the size of the angle a of the conical surface 1221 affects the load-bearing performance of the suction cup piece 100. The smaller the angle a of the conical surface 1221, the smaller the range of the conical surface 1221 that can be turned over. When the vacuum area 121 is deformed during pressing of the suction cup piece 100, the inner ring of the conical surface 1221 will be pressed against the wall surface, affecting the deformation of the recess, the vacuum area 121 cannot be pressed down, it is not convenient to exhaust, the required pressing force is large, and the effective contact area with the wall surface is small, which leads to low load-bearing performance of the suction cup piece 100. For example, as shown in Table 1, when the diameter D of the suction cup piece 100 is 30 mm and a = 5°, the load-bearing time of the suction cup piece 100 in the above test is only 28 days, the adsorption is not long-lasting, the load-bearing effect is poor, and the required pressing force is large. When the angle a of the conical surface 1221 is larger, the thickness of the adhesive 120 is small, the inner ring of the conical surface 1221 cannot abut against the wall surface after pressing, so that the cavity air cannot be fully extruded, the effective adsorption area is also small, and the load-bearing effect is not ideal. For example, when a = 10°, the load-bearing time of the suction cup piece 100 in the above test is only 21 days, the adsorption is not long-lasting, the load-bearing effect is poor, and the required pressing force is large. Similarly, the test results of the suction cups with outer diameters of 55 mm and 100 mm are the same. Therefore, when 5°≤a<10°, the load-bearing performance of the suction cup can meet the use requirements.
[0033] In some embodiments of the present application, a = 7°-9°. Referring to Table 1, when a is set to 7°-9°, the angle of the conical surface 1221 is appropriate, which can facilitate the pressing and exhaust of the vacuum area 121 and can fully adhere to the wall surface. Through tests, the load-bearing time and load-bearing performance of the suction cup piece 100 with diameters of 30 mm, 55 mm and 100 mm in the above range are excellent. Therefore, setting a to 7°-9° can be suitable for commonly used sizes of the suction cup piece 100 and can improve the load-bearing performance of the suction cup piece 100.
[0034] Referring to Figures 1 to 4 In some embodiments of the present application, the recess is a spherical surface 1211. Specifically, the recess is a spherical surface 1211, which can facilitate the manufacturing of the recess and can uniformly extrude the cavity when the vacuum area 121 is pressed, thereby achieving good exhaust effect and good adsorption effect of the suction cup piece 100.
[0035] Referring to Figures 1 to 4 In some embodiments of the present application, a round or chamfer 1222 is arranged between the conical surface 1221 and the spherical surface 1211. Specifically, the edge of the conical surface 1221 and the spherical surface 1211 can be chamfered 1222, so that the conical surface 1221 and the spherical surface 1211 can be smoothly transitioned, thereby enabling the spherical surface 1211 and the conical surface 1221 to fully adhere to the wall surface when the suction cup piece 100 is pressed, and further improving the adsorption effect.
[0036] It can be understood that the spherical surface 1211 and the conical surface 1221 can be transitioned through a round corner, and the suction cup piece 100 can also fully adhere to the wall surface after pressing, and the suction effect is good.
[0037] With reference to Figure 4 In some embodiments of the present application, the projection area of the adsorption area 122 along the adsorption direction is A, the projection area of the vacuum area 121 along the adsorption direction is B, and A / (A+B) = 0.55-0.60. Specifically, D is the total diameter of the vacuum area 121 and the adsorption area 122, and D1 is the diameter of the vacuum area 121, so that A and B can be calculated. For reference Table 1, for the embodiment with good adsorption effect, when α = 8°, for the suction cup piece 100 with a diameter of 30mm, the actual effective contact area is 3.987cm 2 , and A+B = 7.065cm 2 , the ratio of the two is 0.564, similarly, for the suction cup piece 100 with a diameter of 55mm, the actual effective contact area is 13.573cm 2 , and A+B = 23.75cm 2 , the ratio of the two is 0.571, for the suction cup piece 100 with a diameter of 100mm, the actual effective contact area is 44.305cm 2 , and A+B = 78.5cm 2 , the ratio of the two is 0.564, therefore, when the ratio of the projection area A of the adsorption area 122 and the overall projection area (A+B) of the colloid 120 is between 0.55-0.60, it matches the actual effective contact area, and the adsorption area 122 can fully adhere to the wall surface.
[0038] With reference to Figures 3 to 4 In some embodiments of the present application, the thickness of the vacuum area 121 gradually increases along the radial direction of the suction cup piece 100 from the inside to the outside. Specifically, the thickness of the vacuum area 121 gradually increases from the inside to the outside, when the middle part of the vacuum area 121 is pressed, the structure of thin inside and thick outside can facilitate pressing, the required pressing force is small, and the cavity between the spherical surface 1211 and the wall surface can be enlarged, and the rebound effect of the vacuum area 121 can be improved.
[0039] With reference to Figures 3 to 4 In some embodiments of the present application, the thickness of the adsorption area 122 gradually decreases along the radial direction of the suction cup piece 100 from the inside to the outside. Specifically, before the suction cup piece 100 is adsorbed, the outer ring of the adsorption area 122 abuts against the wall surface, by gradually reducing the thickness of the outer ring of the adsorption area 122, the adsorption area 122 can be easily deformed when the suction cup piece 100 is pressed, so that the colloid 120 can fully contact the wall surface, thereby improving the bearing effect.
[0040] In some embodiments of the utility model, backboard 110 is made of plastic material, and colloid 120 is made of elastic material. Specifically, backboard 110 can be made of plastic material, such as PP, PC, PET and the like, which can have a certain hardness, also has a certain elasticity, and also can be injection molded, which is convenient for manufacturing, while colloid 120 can be made of soft and elastic materials such as silica gel and rubber, which has good adsorption effect.
[0041] Referring to Figures 1 to 4 In some embodiments of the utility model, the suction cup piece 100 is provided in a disc shape. Specifically, the outer contour of the backboard 110 and the colloid 120 can be circular, so that the suction cup piece 100 is in a disc shape as a whole. It can be understood that the suction performance of the disc structure is good, and each of the above embodiments can be provided in a disc-shaped suction cup.
[0042] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0043] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.
Claims
1. A suction cup, characterized in that The application relates to a suction disc piece (100) comprising a back plate (110) and a glue body (120) which is tightly combined with one surface of the back plate (110), wherein the other surface of the back plate (110) is provided with a connecting part (111), the back plate (110) is made of hard material, the glue body (120) is made of soft material, the surface of the glue body (120) for adsorption is provided with a vacuum area (121) and an adsorption area (122), the adsorption area (122) is arranged around the vacuum area (121), the adsorption area (122) is provided with a conical surface (1221), and the conical surface (1221) is inclined to the back plate (110) along an outward-to-inward direction. The included angle between the conical surface (1221) and the adsorption plane of the suction disc piece (100) is alpha, and 5 DEG <= alpha < 10 DEG.
2. A suction cup according to claim 1, characterized in that The vacuum area (121) is a recess.
3. A suction cup according to claim 2, wherein α＝7°-9°。 4. A suction cup according to any one of claims 1 to 3, characterized in that The recess is provided with a spherical surface (1211).
5. A suction cup according to claim 4, characterized in that A round or chamfer (1222) is arranged between the conical surface (1221) and the spherical surface (1211).
6. A suction cup according to claim 5, wherein The projection area of the adsorption area (122) along the adsorption direction is A, the projection area of the vacuum area (121) along the adsorption direction is B, and A / (A+B)=0.55-0.
60.
7. A suction cup according to any one of claims 1 to 3, characterized in that The thickness of the vacuum area (121) gradually increases along the radial direction of the suction disc piece (100) from the inside to the outside.
8. A suction cup according to claim 1, characterized in that The thickness of the adsorption area (122) gradually decreases along the radial direction of the suction disc piece (100) from the inside to the outside.
9. A suction cup according to claim 8, characterized in that The suction disc piece (100) is provided in a disc shape.
10. A suction cup according to claim 1, characterized in that