Hook, sucking disc body and flat plate framework

Abstract

The utility model relates to the field of suckers, in particular to a hook, a sucker body and a flat plate framework. The flat plate framework comprises an annular framework body and a connecting rod connected to the center of the back face of the framework body. The framework body comprises a sealing force bearing ring area which is located on the outer edge and is annularly closed, and a main body area located on the radial inner side of the sealing force bearing ring area. Linear holes penetrating through the upper end face and the lower end face of the framework body are formed in the framework body in the circumferential direction of the framework body in an annular array mode, the inner ends of the linear holes extend into a main body area of the framework body, and the outer ends of the linear holes extend into a sealing force bearing ring area of the framework body. According to the flat plate framework, the edge strength of the framework can be improved in an annular sealing mode in the sealing force bearing ring area, and meanwhile the deformation requirement of the suction cup framework is met.

Description

Technical Field

[0001] The utility model relates to the field of suction cups, in particular to a hook, a suction cup body and a flat plate frame. Background Art

[0002] Suction cups create a vacuum chamber by pressing to displace the air inside. They utilize the pressure difference between the inside and outside of the chamber to secure household items to a base surface. They are typically attached to walls, countertops, and other surfaces for hanging items. A commonly used suction cup consists of a frame covered in rubber, with a cover attached to the outside and a connection for hooks and other attachments.

[0003] There are two main types of existing suction cups. This case involves a pull-out suction cup, such as the flat bone suction cup described in the Chinese invention patent with the announcement number "CN103148085B". When in use, when the edge of the elastic colloid is brought into contact with the surface of the base, a reverse pull is applied to the connecting rod, thereby forming a low pressure inside the suction cup and fixing the suction cup to the base. Referring to the above-mentioned existing solutions, the body of the suction cup is made of a skeleton coated with rubber, and in order to adapt to the deformation of the skeleton in the suction cup adsorption state, the skeleton edges of both solutions are constructed in segments, that is, a circumferential array of separation seams is used to separate the edges of the skeleton, so that the deformation of the skeleton during suction can be met. However, the above structure reduces the strength of the skeleton edge, making it difficult to ensure the sealing between the suction cup edge and the reference surface. Summary of the Invention

[0004] In order to solve the above problems, the first purpose of the present invention is to provide a flat plate frame that can meet the deformation requirements of the suction cup frame while using an annular sealing method in the sealing load-bearing ring area to improve the edge strength of the frame.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] A flat plate skeleton comprises a ring-shaped skeleton body and a connecting rod connected to the center of the back side of the skeleton body; the characteristic is that the skeleton body comprises a sealing load-bearing ring area which is located at the outer edge and annularly closed, and a main body area which is located radially inside the sealing load-bearing ring area; the skeleton body is provided with linear holes which pass through its upper and lower end faces along its circumferential annular array, the inner end of the linear hole extends into the main body area of ​​the skeleton body, and the outer end extends to the sealing load-bearing ring area of ​​the skeleton body.

[0007] The present invention employs the aforementioned technical solution, which relates to a flat plate frame suitable for use in pull-out suction cups. Unlike existing designs, the outer edge of this frame features a closed, annular sealing ring area. That is, this sealing ring area lacks a separating seam to separate the frame edge. This ensures that, after the frame is encapsulated with rubber, the suction cup edge supported by the sealing ring area possesses greater strength, thereby enhancing the seal between the suction cup edge and the reference surface.

[0008] However, the annularly closed sealing load-bearing ring area will increase the deformation resistance of the flat frame, making it difficult to deform or the deformation amount is small when the suction cup is pulled out. This may cause insufficient negative pressure to be formed inside the suction cup, affecting the suction force of the suction cup. In order to adapt to the deformation amount of the frame when the suction cup is used, this solution is provided with linear holes penetrating the upper and lower end faces along the circumferential annular array on the frame body. The inner end of the linear hole extends to the main body area of ​​the frame body, and the outer end extends to the sealing load-bearing ring area of ​​the frame body. Since the linear holes are arranged in the radial direction on the main body area and the sealing load-bearing ring area, on the one hand, they can meet the glue circulation requirements of the main body area and the sealing load-bearing ring area, that is, the role of glue holes; on the other hand, since the frame body is cut in the radial direction, the deformation amount of the suction cup frame can be increased to reduce the influence of the annularly closed sealing load-bearing ring area on the deformation amount of the frame.

[0009] In this way, the edge strength of the frame can be improved by adopting an annular sealing method in the sealing load-bearing ring area while meeting the deformation requirements of the suction cup frame.

[0010] The above scheme records that the linear holes are arranged in the main body area and the sealing load-bearing ring area in the radial direction, which does not specifically refer to being arranged along the radial direction, but also includes any hole type that extends in the radial direction, such as arc-shaped, S-shaped, etc. that are radially arranged relative to the skeleton body.

[0011] However, in a more preferred solution, the linear holes are strip-shaped holes extending only along the radial direction of the skeleton body.

[0012] In a further embodiment, the main body of the frame body includes an annular deformation zone radially inward of the sealing ring section and a central annular zone radially inward of the annular deformation zone. The thickness of the central annular zone is greater than that of the annular deformation zone. The inner end of the linear hole extends across the annular deformation zone into the central annular zone. To further adapt to the required deformation of the frame during use, this embodiment divides the main body radially inward of the sealing ring into an annular deformation zone and a central annular zone. The thickness of the annular deformation zone is relatively thin, practically ranging from 0.5 to 0.8 cm. When the suction cup frame is encapsulated in rubber, external forces acting on the connecting rod axially pull the connecting rod relative to the frame body, causing the annular deformation zone to deform, concentrating the deformation stress of the suction cup frame in the annular deformation zone. Furthermore, this embodiment combines the annular deformation zone with the linear hole. The inner end of the linear hole extends across the annular deformation zone into the central annular zone, while the outer end extends into the sealing ring section of the frame body. In other words, the linear hole interrupts the annular deformation zone, thereby reducing its deformation capacity.

[0013] Preferably, a central boss is further provided at the center of the central ring area, and the lower end of the connecting rod is connected to the center of the central boss.

[0014] Preferably, the root edge of the central boss has a plurality of reinforcing blocks in a circumferential annular array. The provision of the reinforcing blocks can enhance the bonding ability between the root of the central boss and the elastic colloid.

[0015] In a further solution, the lower end surface of the sealing load-bearing ring area is not higher than the heights of the annular deformation area and the central ring area, and the upper end surface of the annular deformation area is lower than the upper end surface of the sealing load-bearing ring area.

[0016] Preferably, the upper end surface of the sealing bearing ring region includes multiple protrusions spaced circumferentially and exposed to the elastic colloid. The linear holes and protrusions are arranged alternately in a circumferential annular pattern, and the outer ends of the linear holes extend between two adjacent protrusions. The protrusions in this embodiment serve as support points during the overmolding process of the flat frame, thereby providing uniform support for the frame and preventing uneven colloid thickness on the inner and outer sides of the frame due to tilting of the frame.

[0017] In another embodiment, the upper end surface of the sealing bearing ring is provided with a continuous circumferentially extending protrusion that is exposed to the elastic colloid, and a linear hole extends into the sealing bearing ring outside the protrusion. The protrusion in this embodiment also serves as a support point during the overmolding process of the flat frame, thereby providing uniform support for the frame and preventing tilting of the frame that would result in inconsistent colloid thickness on the inner and outer sides of the frame. Furthermore, this embodiment requires that the linear hole extend outside the protrusion, thereby minimizing the protrusion's impact on the flow of colloid inside and outside the frame.

[0018] The second purpose of the present utility model is to provide a suction cup body, including a suction cup frame and an elastic colloid covering the suction cup frame; its characteristics are: it includes a flat plate frame as described above; the elastic colloid at least covers the lower end surface of the frame body and the upper end surface of the sealing load-bearing ring.

[0019] A hook is characterized by comprising a suction cup body as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of the first structure of the flat plate frame in Example 1.

[0021] Figure 2 This is an end view of the first structure of the flat plate skeleton in Example 1.

[0022] Figure 3 This is a three-dimensional diagram of the second structure of the flat plate frame in Example 1.

[0023] Figure 4 This is an end view of the second structure of the flat plate skeleton in Example 1.

[0024] Figure 5 Schematic diagram of the suction cup body structure in Example 2. DETAILED DESCRIPTION

[0025] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.

[0028] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature. Example

[0030] like Figures 1 to 4 As shown, this embodiment relates to a flat plate frame, comprising a circular frame body 10 and a connecting rod 11 connected to the center of the back of the frame body 10. The frame body 10 includes a sealed, annular, and closed sealing ring area 12 at the outer edge, and a main body area 13 radially inward of the sealing ring area 12. The frame body 10 is provided with linear holes 14 extending through its upper and lower end surfaces along a circumferential annular array. The inner ends of the linear holes 14 extend into the main body area 13 of the frame body 10, and the outer ends extend into the sealing ring area 12 of the frame body 10. This flat plate frame is suitable for use in pull-out suction cups. Unlike existing designs, the outer edge of this flat plate frame employs a sealed, annular sealing ring area 12, i.e., the sealing ring area 12 does not have a separating seam to separate the frame edge. As a result, after the flat plate frame is encapsulated, the suction cup edge supported by the sealing ring area 12 has a higher frame strength, which improves the seal between the suction cup edge and the reference surface.

[0031] However, the annularly closed sealing load-bearing ring area 12 will increase the deformation resistance of the flat frame, making it difficult to deform or the deformation amount is small when the suction cup is pulled out. This may cause insufficient negative pressure to be formed inside the suction cup, affecting the suction force of the suction cup. In order to adapt to the deformation amount of the frame when the suction cup is used, this solution is provided with linear holes 14 that pass through the upper and lower end faces of the frame body 10 along its circumferential annular array. The inner end of the linear hole 14 extends into the main body area 13 of the frame body 10, and the outer end extends to the sealing load-bearing ring area 12 of the frame body 10. Since the linear holes 14 are arranged in the radial direction on the main body area 13 and the sealing load-bearing ring area 12, on the one hand, they can meet the glue circulation requirements of the main body area 13 and the sealing load-bearing ring area 12, that is, the role of glue holes. On the other hand, since the frame body 10 is cut in the radial direction, the deformation amount of the suction cup frame can be increased to reduce the influence of the annularly closed sealing load-bearing ring area 12 on the deformation amount of the frame.

[0032] In this way, the sealing load-bearing ring area 12 can adopt an annular sealing method to improve the edge strength of the frame while meeting the deformation requirements of the suction cup frame.

[0033] The above solution states that the linear holes 14 are arranged in the main body area 13 and the sealing bearing ring area 12 in the radial direction, which does not specifically refer to being arranged in the radial direction, but also includes any hole type that extends in the radial direction, such as arc-shaped, S-shaped, etc. that are radially arranged relative to the skeleton body 10. Figure 1-4 In the more preferred embodiment shown, the linear holes 14 are strip-shaped holes extending only along the radial direction of the skeleton body 10 .

[0034] In a further embodiment, the main body region 13 of the skeleton body 10 includes an annular deformation zone 131 radially inward of the sealing load-bearing annular region 12, and a central annular region 132 radially inward of the annular deformation zone 131. The thickness of the central annular region 132 is greater than that of the annular deformation zone 131. A central boss 15 is also provided at the center of the central annular region 132, and the lower end of the connecting rod 11 is connected to the center of the central boss 15. The root edge of the central boss 15 is provided with multiple reinforcement blocks in a circumferential annular array. The provision of the reinforcement blocks can enhance the bonding ability between the root of the central boss 15 and the elastic colloid.

[0035] Furthermore, the inner end of the linear hole 14 extends across the annular deformation zone 131 to the center ring zone 132. In order to further adapt to the skeleton deformation requirements when the suction cup is used, the scheme here divides the main area 13 on the radial inner side of the sealing load-bearing ring into an annular deformation zone 131 and a center ring zone 132. The thickness of the annular deformation zone 131 is relatively thin, actually in the range of 0.5~0.8cm. When the suction cup skeleton is encapsulated with rubber, when an external force acts on the connecting rod 11 to pull axially relative to the skeleton body 10, the annular deformation zone 131 can be deformed, and the deformation stress of the suction cup skeleton is concentrated in the annular deformation zone 131. In addition, this scheme combines the annular deformation zone 131 with the linear hole 14, and the inner end of the linear hole 14 extends across the annular deformation zone 131 to the center ring zone 132, and the outer end extends to the sealing load-bearing ring zone 12 of the skeleton body 10. That is, the linear hole 14 blocks the annular deformation zone 131 , thereby reducing the deformation capacity of the annular deformation zone 131 .

[0036] In a further solution, the lower end surface of the sealing load-bearing ring area 12 is not higher than the heights of the annular deformation area 131 and the central ring area 132 , and the upper end surface of the annular deformation area 131 is lower than the upper end surface of the sealing load-bearing ring area 12 .

[0037] like Figure 1 and 2 In one embodiment shown, the upper end surface of the sealing bearing ring area 12 is circumferentially spaced and exposed to the elastic colloid, with multiple protrusions 16 arranged alternately along the circumference. The linear holes 14 and protrusions 16 are arranged in an alternating pattern. The outer ends of the linear holes 14 extend between two adjacent protrusions 16. The protrusions 16 in this embodiment serve as support points during the overmolding process of the flat frame, providing uniform support for the frame and preventing tilting of the frame, which could lead to uneven colloid thickness on the inner and outer sides of the frame.

[0038] like Figure 3 and 4 In another embodiment shown, the upper end surface of the sealing load-bearing ring area 12 is provided with a circumferentially continuous raised ring 17 that is exposed to the elastic colloid. The linear hole 14 extends into the sealing load-bearing ring area 12 outside the raised ring 17. The raised ring 17 in this embodiment also serves as a support point during the overmolding process of the flat frame, thereby providing uniform support for the frame and preventing tilting of the frame that would result in inconsistent colloid thickness on the inner and outer sides of the frame. Furthermore, this embodiment requires that the linear hole 14 extend outside the raised ring 17, thereby reducing the impact of the raised ring 17 on the flow of colloid inside and outside the frame. Example

[0039] like Figure 5As shown, this embodiment provides a suction cup body, including a suction cup frame and an elastic colloid 2 covering the suction cup frame, including the flat frame described in Example 1. The elastic colloid 2 covers at least the lower end surface of the frame body 10 and the upper end surface of the sealing bearing ring. Example

[0040] This embodiment provides a hook, including a suction cup body as described in Example 2.

[0041] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0042] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A flat frame, comprising a circular frame body (10), and a connecting rod (11) connected to the center of the back of the frame body (10); characterized in that: The skeleton body (10) includes a sealing load-bearing ring area (12) located at the outer edge and annularly closed, and a main body area (13) located radially inside the sealing load-bearing ring area (12); the skeleton body (10) is provided with linear holes (14) penetrating its upper and lower end faces along its circumferential annular array, the inner ends of the linear holes (14) extend into the main body area (13) of the skeleton body (10), and the outer ends extend to the sealing load-bearing ring area (12) of the skeleton body (10).

2. The flat plate frame according to claim 1, characterized in that: The linear holes (14) are strip-shaped holes extending only along the radial direction of the skeleton body (10).

3. The flat plate frame according to claim 1, characterized in that: The main body region (13) of the skeleton body (10) includes an annular deformation region (131) located radially inward of the sealing load-bearing ring region (12), and a central annular region (132) located radially inward of the annular deformation region (131); the thickness of the central annular region (132) is greater than the thickness of the annular deformation region (131); and the inner end portion of the linear hole (14) extends across the annular deformation region (131) into the central annular region (132).

4. The flat plate frame according to claim 3, characterized in that: A central boss (15) is also provided at the center of the central ring area (132), and the lower end of the connecting rod (11) is connected to the center of the central boss (15).

5. The flat plate frame according to claim 4, characterized in that: The root edge of the central boss (15) has a plurality of reinforcement blocks in a circumferential annular array.

6. The flat plate frame according to claim 3, characterized in that: The lower end surface of the sealing load-bearing ring area (12) is not higher than the height of the annular deformation area (131) and the central ring area (132), and the upper end surface of the annular deformation area (131) is lower than the upper end surface of the sealing load-bearing ring area (12).

7. The flat plate frame according to claim 1, characterized in that: The upper end surface of the sealing load-bearing ring area (12) is circumferentially spaced and has a plurality of protrusions (16) that are exposed to the elastic colloid (2), and the linear holes (14) and the protrusions (16) are alternately arranged in a circumferential ring; the outer end of the linear hole (14) extends between two adjacent protrusions (16).

8. The flat plate frame according to claim 1, characterized in that: The upper end surface of the sealing load-bearing ring area (12) is provided with a convex ring (17) which is continuous along its circumference and can be exposed to the elastic colloid (2), and the linear hole (14) extends into the sealing load-bearing ring area (12) outside the convex ring (17).

9. A suction cup body, comprising a suction cup frame and an elastic colloid (2) covering the suction cup frame; characterized in that: It comprises a flat plate frame according to any one of claims 1 to 8; the elastic colloid (2) at least covers the lower end surface of the frame body (10) and the upper end surface of the sealing bearing ring.

10. A hook, characterized by: The invention comprises a suction cup body as recited in claim 9.

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