Sucking disc

Abstract

The utility model discloses a sucker which comprises a sucker piece, the sucker piece comprises a back plate and a rubber body, the rubber body is tightly combined with the back plate, the rubber body wraps one face of the back plate and at least partially wraps the other face of the back plate, the other face of the back plate is provided with a connecting portion, the back plate is made of hard materials, and the rubber body is made of soft materials. The double faces of the colloid and the back plate are tightly combined and wrapped, so that the back plate can be fully connected with the colloid and is not prone to falling off, the hard back plate can assist the soft colloid in adsorption, the structural strength of the suction cup can be improved, the bearing performance is good, and the colloid can wrap the other face of the back plate. Therefore, external air can permeate into a negative pressure area only by penetrating through two layers of colloids and one layer of back plate, the vacuum degree reduction time can be delayed, and the suction durability of the suction cup is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of connecting piece, especially relates to a sucking disc. BACKGROUND

[0002] The existing sucking disc is mainly composed of a back plate, a framework and a glue body, the framework supports the sucking disc, compensates for the shortage of the glue body support of the sucking disc, makes the sucking disc adhere to the wall surface, the back plate stretches the sucking disc and guarantees the vacuum degree of the sucking disc. SUMMARY

[0003] The utility model discloses at least one of the technical problems in the prior art, and the utility model provides a sucking disc, which can solve the problems of general bearing effect and general adhesion durability.

[0004] The sucking disc according to the first aspect of the utility model comprises a sucking disc part, the sucking disc part comprises a back plate and a glue body, the glue body is tightly combined with the back plate, one side of the back plate is covered by the glue body, and at least one side of the back plate is partially covered by the glue body, the other side of the back plate is provided with a connecting part, the back plate is made of hard material, and the glue body is made of soft material.

[0005] The sucking disc according to the utility model has the following beneficial effects: the two sides of the glue body and the back plate are tightly combined and covered, the back plate can be fully connected with the glue body and is not easy to fall off, the hard back plate can assist the soft glue body in adhesion, the structure strength of the sucking disc can be improved, the bearing performance is good, the glue body can be covered on the other side of the back plate, external air needs to penetrate through two layers of glue body and one layer of back plate to enter the negative pressure area, the time of vacuum degree decline can be delayed, and the adhesion durability of the sucking disc is improved.

[0006] According to some embodiments of the utility model, the glue body covers two sides of the back plate.

[0007] According to some embodiments of the utility model, the glue body is secondarily injection molded on the back plate.

[0008] According to some embodiments of the utility model, the back plate edge is provided with a plurality of glue passing grooves.

[0009] According to some embodiments of the utility model, each glue passing groove is evenly and spacedly arranged along the back plate edge.

[0010] According to some embodiments of the present invention, one side of the back plate is provided with a plurality of first protrusions, and the first protrusions are embedded in the colloid.

[0011] According to some embodiments of the present invention, the other side of the back plate is provided with a plurality of second protrusions, and the second protrusions are embedded in the colloid.

[0012] According to some embodiments of the present invention, the colloid is coated onto the connecting portion.

[0013] According to some embodiments of the present invention, the back plate is provided with a plurality of grooves, each of the grooves being spaced apart around the middle of the back plate, and the grooves extending from the inside out.

[0014] According to some embodiments of the present invention, the back plate can have pores, the projected area of ​​the pores along the adsorption direction is set as K, and the projected area of ​​the colloid along the adsorption direction is set as J, where K:J < 0.2.

[0015] According to some embodiments of this utility model, K = 0.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 These are schematic diagrams of the structure of some embodiments of this utility model;

[0019] Figure 2 for Figure 1 Exploded view of the middle suction cup component structure;

[0020] Figure 3 for Figure 1 Cross-sectional view of the suction cup component;

[0021] Figure 4 for Figure 1 Schematic diagram of the backplate structure;

[0022] Figure 5 These are exploded structural diagrams of some embodiments of the present invention;

[0023] Figure 6 for Figure 5 A schematic diagram of the back panel structure.

[0024] Figure label:

[0025] Suction cup piece 100, back plate 110, glue trough 111, first protruding part 112, second protruding part 113, connecting part 114, glue 120. DETAILED DESCRIPTION

[0026] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0027] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0028] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Reference Figures 1 to 3According to the first aspect of the utility model discloses a kind of sucking disc, including sucking disc piece 100, sucking disc piece 100 includes backplate 110 and glue body 120, glue body 120 is tightly combined with backplate 110, and glue body 120 covers one side of backplate 110, and at least covers another side of backplate 110 partially, backplate 110 another side is equipped with connecting portion 114, backplate 110 is equipped as hard material quality piece, glue body 120 is equipped as soft material quality piece. Glue body 120 and the double-sided tight combination of backplate 110 cover, so that backplate 110 can be fully connected with glue body 120, not easy to fall off, and hard backplate 110 can assist soft glue body 120 adsorption, also can promote the strength of sucking disc structure, good load bearing performance, and glue body 120 can be covered in backplate 110 another side, so that external air needs to penetrate two layers of glue body 120 and a layer of backplate 110 to penetrate into negative pressure area, can delay the time of vacuum degree drop, improve the durability of sucking disc adsorption.

[0030] Specifically, after glue body 120 is tightly combined with backplate 110, backplate 110 can support glue body 120, the strength of glue body 120 can be improved, and after adsorption, backplate 110 can generate pressure covering force to glue body 120, so that the adsorption effect and load bearing of sucking disc piece 100 can be improved, and glue body 120 can completely cover the side of backplate 110 used for adsorption, and at least most of the other side is covered, the other side of backplate 110 can be provided with connecting portion 114, connecting portion 114 can be used for pressing or for hanging articles, and can also be used for assembling other accessories, with strong expansibility, and after glue body 120 covers both sides of backplate 110, the air resistance performance can be improved, external air needs to penetrate two layers of glue body 120 and a layer of backplate 110 to penetrate into the vacuum area of adsorption, so that the sucking disc can be adsorbed more durable, and glue body 120 can cover backplate 110, backplate 110 can have burrs during production, and glue body 120 can wrap the burrs, so that the burrs do not need to be treated.

[0031] Referring to Figures 1 to 4 In some embodiments of the utility model, glue body 120 covers both sides of backplate 110. Specifically, glue body 120 can substantially wrap both sides of backplate 110, thereby further improving the air resistance performance and further improving the adsorption durability.

[0032] In some embodiments of the utility model, glue body 120 is twice injection molded on backplate 110. Specifically, glue body 120 can be directly twice injection molded on backplate 110, which can directly wrap both sides of backplate 110, with simple manufacturing process and low production cost.

[0033] Referring to Figure 5 And Figure 6In some embodiments of the utility model, the edge of back plate 110 is provided with a plurality of glue grooves 111. Specifically, when the secondary injection molding is carried out, the edge of back plate 110 can be provided with glue groove 111, so that glue 120 fills the mold cavity on both sides of back plate 110 from glue groove 111, which can facilitate injection molding.

[0034] It should be noted that the back plate 110 is not limited to the above embodiments, and can also have other embodiments, for example, the back plate 110 can be provided with a glue hole, the glue hole can be arranged near the outer edge of the back plate 110, and the glue hole can be arranged multiple and spaced around the middle of the back plate 110.

[0035] Referring to Figure 5 And Figure 6 In some embodiments of the utility model, each glue groove 111 is uniformly and spacedly arranged along the edge of back plate 110. Specifically, the plurality of glue grooves 111 can accelerate the flow filling of glue 120, improve the injection efficiency, and the uniform and spaced arrangement of each glue groove 111 can facilitate the deformation of back plate 110, and the deformation of back plate 110 is more uniform in stress, facilitating the adsorption of suction cup piece 100.

[0036] Referring to Figures 2 to 6 In some embodiments of the utility model, the back plate 110 is provided with a plurality of first protruding portions 112 on one side, and the first protruding portions 112 are embedded in the glue 120. Specifically, the first protruding portions 112 can be provided as cylindrical structures, and each first protruding portion 112 can be uniformly arranged on one side of the back plate 110, and the glue 120 can cover the first protruding portions 112 after forming, and the plurality of first protruding portions 112 can improve the connection strength between the glue 120 and the back plate 110, so that the glue 120 is more firmly connected.

[0037] It can be conceived that the specific shape of the first protruding portion 112 can also be radial, boss-shaped, etc., and the specific shape is not limited here.

[0038] Referring to Figures 2 to 6 In some embodiments of the utility model, the back plate 110 is provided with a plurality of second protruding portions 113 on the other side, and the second protruding portions 113 are embedded in the glue 120. Specifically, the other side of the back plate 110 can also be provided with cylindrical second protruding portions 113, and each second protruding portion 113 can be uniformly arranged on the other side of the back plate 110, and the glue 120 can cover the second protruding portions 113 after forming, and the plurality of first protruding portions can further improve the connection strength between the glue 120 and the back plate 110, so that the glue 120 is more firmly connected.

[0039] Referring to Figures 1 to 3In some embodiments of the utility model, the colloid 120 is coated to the connecting part 114. Specifically, the colloid 120 can coat the other side of the back plate 110 to the side of the connecting part 114, the connecting part 114 has a certain thickness and can block air, so the colloid 120 is not needed to be wrapped, which is convenient for the colloid 120 processing.

[0040] In some embodiments of the utility model, the back plate 110 is provided with a plurality of grooves, each groove is arranged at intervals around the middle part of the back plate, and the grooves are arranged from inside to outside. Specifically, the grooves arranged on the back plate 110 can make the back plate 110 more convenient to deform, reduce the required pressing force, and also enable the colloid 120 to be closely combined with the back plate 110.

[0041] It should be noted that the back plate 110 is made of plastic material, and the colloid 120 is made of elastic material. Specifically, the back plate 110 can be made of plastic material such as PP, PC, PET, etc., which can have a certain hardness, also has a certain elasticity, and also can be injection molded, which is convenient for manufacturing, while the colloid 120 can be made of soft and elastic materials such as silicone and rubber, which has good adsorption effect.

[0042] In some embodiments of the utility model, the back plate 110 can have pores, the projection area of the pores along the adsorption direction is set as K, the projection area of the colloid 120 along the adsorption direction is set as J, and K:J<0.2. Specifically, the back plate 110 can be provided with pores, which can improve the deformation ability of the back plate 110 and reduce the required pressing force. However, since the other side of the adsorption surface of the colloid 120 is blocked by the back plate 110, the back plate 110 can prevent air from penetrating into the adsorbed negative pressure area from the colloid 120. When the back plate 110 is provided with pores, air can penetrate from the pores. According to the test, when the vacuum degree of the suction cup is-60kPa, K:J is 0%, 2%, 4%, 6%, 8%, 12% and 16% respectively, the time required for the vacuum degree of the suction cup to decrease by 10kPa is 78 days, 73 days, 64 days, 45 days, 31 days, 24 days and 22 days respectively. Therefore, when K:J<0.2, the adsorption time of the suction cup can meet the use requirements.

[0043] In some embodiments of the utility model, K=0. Specifically, it can be understood that when K=0, no pores are arranged on the surface where the back plate 110 is closely combined with the colloid 120. At this time, the back plate 110 can completely cover and block the outside surface of the colloid 120, which has good effect in preventing gas penetration, and thus the adsorption durability of the suction cup can be improved.

[0044] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A suction cup, characterized in that The application relates to a suction cup piece (100) comprising a back plate (110) and a rubber body (120) tightly combined with the back plate (110), wherein the rubber body (120) covers one side of the back plate (110) and at least partially covers the other side of the back plate (110), the other side of the back plate (110) is provided with a connecting part (114), the back plate (110) is made of hard material, and the rubber body (120) is made of soft material. The rubber body (120) covers both sides of the back plate (110).

2. A suction cup according to claim 1, characterized in that The rubber body (120) is formed by secondary injection molding on the back plate (110).

3. A suction cup according to claim 1, characterized in that The edge of the back plate (110) is provided with a plurality of glue troughs (111).

4. A suction cup according to claim 3, wherein Each glue trough (111) is uniformly and spacedly arranged along the edge of the back plate (110).

5. A suction cup according to claim 4, wherein One side of the back plate (110) is provided with a plurality of first protruding parts (112) embedded in the rubber body (120).

6. A suction cup according to claim 1, characterized in that The other side of the back plate (110) is provided with a plurality of second protruding parts (113) embedded in the rubber body (120).

7. A suction cup according to claim 6, characterized in that The rubber body (120) covers the outer periphery of the connecting part (114).

8. A suction cup according to claim 1, characterized in that The back plate (110) is provided with a plurality of grooves, each groove is spacedly arranged around the middle part of the back plate (110), and the groove extends from inside to outside.

9. A suction cup according to claim 1, characterized in that The back plate (110) can have an aperture, the projection area of the aperture projected along the adsorption direction is K, the projection area of the rubber body (120) projected along the adsorption direction is J, and K:J<0.

2.

10. A suction cup according to claim 1, characterized in that ​ 11. A suction cup according to claim 10, characterized in that K＝0。

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