Sucker structure capable of being adsorbed on concave-convex surface

Abstract

The sucker structure capable of being adsorbed on the concave-convex surface comprises a pressing plate framework and a sucker rubber body, the middle of the sucker rubber body is provided with an upward suspension face, the periphery of the suspension face is provided with a circle of adsorption face capable of being attached to the surface of an object when the sucker rubber body is pressed downwards, and the adsorption face is an annular conical face. When the sucker colloid is not adsorbed on the surface of an object, the outer diameter of the adsorption surface is D, the height from the vertex of the suspended surface to the outer edge of the adsorption surface is H, and the following relational expression is met: H / D is greater than or equal to 5.14% and less than or equal to 18.34%; when the suction cup colloid is adsorbed on the surface of an object, only the adsorption face is attached to the surface of the object, the outer diameter of the adsorption face is D1, the inner diameter of the adsorption face is D2, and the following relational expression is met: # imgabs0. The suction cup colloid has the advantages of being high in adsorption capacity, good in bearing capacity and durability and capable of being adsorbed on a concave-convex face.

Description

Technical Field

[0001] The utility model relates to the technical field of suction cups, in particular to a suction cup structure capable of adsorbing on uneven surfaces. Background Art

[0002] In modern industry and daily life, suction cups, as a common adsorption tool, are widely used in various occasions, such as household cleaning, automobile parts installation, electronic device support, etc. Its basic principle is to achieve the fixation and support of objects through air pressure difference. However, when the existing conventional suction cups face uneven surfaces (such as frosted surfaces, concrete surfaces and other non-smooth surfaces), their adsorption effects are relatively insufficient. This is because the design of traditional suction cups mainly targets smooth planes, and when dealing with irregular surfaces, the structure and materials of the suction cups limit their adsorption capacity.

[0003] First of all, the contradiction between the central suspension height of the suction cup and the effective adsorption area is a key factor affecting its performance. When the suspension height of the suction cup is too high, although the local adsorption force can be enhanced, the overall adsorption capacity decreases due to the reduction of the adsorption area, which makes the suction cup more likely to fall off when a certain external force or vibration is applied. In addition, the uneven surface will cause incomplete contact between the suction cup and the surface, forming local air bags, further reducing the effective adsorption area.

[0004] Secondly, durability is also an issue that cannot be ignored. Traditional suction cups on relatively rough or irregular surfaces cannot maintain a fixed state for a long time due to insufficient adsorption force, which not only affects the use effect but also may cause accidental detachment and damage.

[0005] Therefore, it is necessary to further improve and perfect the existing technology to overcome these deficiencies, and the present utility model is made based on this situation. Content of the Utility Model

[0006] The purpose of the utility model is to overcome the deficiencies of the existing technology and provide a suction cup structure with strong adsorption force, good load-bearing capacity and durability, and capable of adsorbing on uneven surfaces.

[0007] The present utility model is realized through the following technical solutions:

[0008] To solve the above technical problems, the present utility model provides a suction cup structure capable of adsorbing on uneven surfaces, including a pressing plate skeleton and a suction cup colloid. An upwardly raised suspended surface is provided in the middle of the suction cup colloid, and an adsorption surface capable of fitting to the object surface when pressed down is provided around the suspended surface. The adsorption surface is an annular conical surface.

[0009] When the sucker colloid is not adsorbed on the surface of an object, the outer diameter of the adsorption surface is D, and the height from the vertex of the suspended surface to the outer edge of the adsorption surface is H, satisfying the following relational expression: 5.14% ≤ H / D ≤ 18.34%.

[0010] When the sucker colloid is adsorbed on the surface of an object, only the adsorption surface adheres to the surface of the object, and the outer diameter of the adsorption surface is D 1 , and the inner diameter of the adsorption surface is D 2 , satisfying the following relational expression:

[0011]

[0012] In order to further solve the technical problems to be solved by the present utility model, in a sucker structure capable of adsorbing on concave and convex surfaces provided by the present utility model, the suspended surface is an arc surface.

[0013] In order to further solve the technical problems to be solved by the present utility model, in a sucker structure capable of adsorbing on concave and convex surfaces provided by the present utility model, the Shore hardness of the sucker colloid is 20HA - 50HA.

[0014] Compared with the prior art, the present utility model has the following advantages:

[0015] The sucker of the present utility model can ensure that the sucker has a suitable suspension height (suitable vacuum degree) and a suitable effective adsorption area, so that the sucker has a strong load-bearing capacity, a lasting adsorption force, is not easy to fall off, and can also be adsorbed on a surface with a certain degree of concavity and convexity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further describes in detail the specific embodiments of the present utility model with reference to the drawings, wherein:

[0017] Figure 1 is a schematic cross-sectional view of the sucker when not adsorbed;

[0018] Figure 2 is a schematic cross-sectional view of the sucker when adsorbed. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0020] As Figures 1 to 2 shown, a sucker structure capable of adsorbing on concave and convex surfaces includes a pressing plate skeleton 1 and a sucker colloid 2. A suspended surface 21 that bulges upward is provided in the middle of the sucker colloid 2, and a ring of adsorption surfaces 22 that can adhere to the surface of an object when pressed down are provided around the suspended surface 21, and the adsorption surfaces 22 are annular conical surfaces.

[0021] When the suction cup colloid 2 is not adsorbed on the surface of an object, the outer diameter of the adsorption surface 22 is D (i.e., the outer diameter D of the suction cup), and the height from the vertex of the suspended surface 21 to the outer edge of the adsorption surface 22 is H (i.e., the suspension height H), satisfying the following relational expression: 5.14% ≤ H / D ≤ 18.34%.

[0022] Among them, the suspension height H reflects the amount of air discharged during the suction of the suction cup, that is, the vacuum degree, and is also related to the pressing force; while the outer diameter D of the suction cup is related to the area (projection area) of the suction cup or the size of the suction cup. The above relational expression can ensure that the suction cup of a corresponding size has an appropriate suspension height, which can ensure that the suction cup has sufficient vacuum degree during suction, so that it can be adsorbed on the uneven surface of an object (such as the surface of frosted glass or cement wall, etc.), and improve the load-bearing capacity.

[0023] When the suction cup colloid 2 is adsorbed on the surface of an object, only the adsorption surface 22 is in contact with the surface of the object, and the outer diameter of the adsorption surface 22 is 1 , and the inner diameter of the adsorption surface 22 is D 2 , satisfying the following relational expression:

[0024] Among them, the total area (projection area) of the suction cup is S 1 , The annular adsorption surface 22 is actually in contact with the surface of the object, and its area is the effective adsorption area S 2 , the effective adsorption area Therefore, the above relational expression is actually the ratio between the effective adsorption area S 1 and the total area S of the suction cup 2 . The above relational expression can ensure an appropriate effective adsorption area, thereby ensuring that the suction cup has good adsorption force and durability.

[0025] Furthermore, the suspended surface 21 is an arc surface.

[0026] Furthermore, the Shore hardness of the suction cup colloid 2 is 20 degrees - 50 degrees (unit: HA). The suction cup within this hardness range can not only be attached and adsorbed on the uneven surface, but also has sufficient strength to bear the weight.

[0027] The following table is the test data of the suction cup on frosted glass:

[0028]

[0029]

[0030] It can be seen from the data in the above table that among the suction cups of the same size, maintaining a larger suspension height and a wider effective adsorption area has a better load-bearing effect on the uneven surface. And through the relational expressions 5.14% ≤ H / D ≤ 18.34% and It is possible to achieve a balance between the suspension height and the effective adsorption area.

Claims

1. A suction cup structure capable of being adsorbed on a concave or convex surface, characterized in that: It comprises a pressing plate frame (1) and a suction cup colloid (2), wherein the suction cup colloid (2) is provided with a suspended surface (21) which is raised upward in the middle, and a circle of adsorption surface (22) which can be attached to the surface of an object when pressed down is provided around the suspended surface (21), and the adsorption surface (22) is an annular cone surface; When the suction cup colloid (2) is not adsorbed on the surface of an object, the outer diameter of the adsorption surface (22) is D, and the height from the vertex of the suspended surface (21) to the outer edge of the adsorption surface (22) is H, satisfying the following relationship: 5.14%≤H / D≤18.34%; When the suction cup colloid (2) is adsorbed on the surface of an object, only the adsorption surface (22) is attached to the surface of the object, the outer diameter of the adsorption surface (22) is D1, and the inner diameter of the adsorption surface (22) is D2, satisfying the following relationship:

2. A suction cup structure capable of being adsorbed on a concave or convex surface according to claim 1, characterized in that: The suspended surface (21) is an arc-shaped surface.

3. The suction cup structure capable of being adsorbed on a concave or convex surface according to claim 1, characterized in that: The Shore hardness of the suction cup colloid (2) is 20HA-50HA.

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