Vacuum chuck

Abstract

The utility model provides a vacuum chuck which comprises an adsorption disc, a chuck cover and a top pressing piece, the adsorption disc comprises a framework and an elastic rubber body wrapped on the framework, and at least one downward pressing protrusion is arranged at one end, facing the elastic rubber body, of the framework; the suction disc cover is arranged above the suction disc in a covering manner; the suction cup cover extends towards the framework and is provided with a flange corresponding to the downward-pressing protrusion, and the flange abuts against the framework. The top pressing piece is positioned at the upper part of the suction cup cover; a connecting rod is arranged on the framework, and the connecting rod penetrates through the suction cup cover and then is connected with the jacking piece; the vacuum suction cup overcomes the defects that an existing rotary knob type suction cup is not strong in adsorption force and not lasting in adsorption state.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sucking disc, in particular to a vacuum sucking disc. BACKGROUND

[0002] Because the sucking disc has the characteristics of "taking" and "putting", simple and convenient to use, more and more people use it as the essential tool of hanging towel, clothes, bag and other life objects at any time. The core mechanism of knob type sucking disc is to control the sealing degree between the sucking disc and the object through the rotation of the knob, and then realize stable adsorption. First, the initial rotation of the knob makes the sucking disc and the object closely contact, forms negative pressure, and preliminarily adsorbs the object. Then, continue to rotate the knob to produce a vacuum environment, and ensure that the sucking disc and the object form strong vacuum adsorption.

[0003] For example, the publication number CN204961550U discloses a sucking disc, which comprises an adsorbing disc, a sucking disc cover and a knob. An adsorbing soft rubber is arranged on the adsorbing surface of the adsorbing disc. One end of a screw column is fixed vertically at the center of the adsorbing disc, and the other end passes through the center through hole of the sucking disc cover and is movably installed with the knob. The knob is arranged above the sucking disc cover and rotates to drive the screw column to move up and down. The adsorbing disc is circular, and a raised portion is arranged at the edge of the upper surface of the adsorbing disc. A groove portion corresponding to the raised portion is arranged at the edge of the lower surface of the sucking disc cover. The raised portion and the groove portion combine to form a stepped labyrinth structure. In the above structure, because the adsorbing disc is provided with the upward raised portion, the raised portion is away from the adsorbing soft rubber, the pressure conduction is not direct, the pressing effect is poor, the sealing performance is affected, the adsorption force of the sucking disc is not strong, and the adsorption state is not durable. UTILITY MODEL CONTENTS

[0004] (I) Technical problem to be solved

[0005] The problem to be solved by the utility model is to provide a vacuum sucking disc to overcome the defects of the existing knob type sucking disc, such as weak adsorption force and non-durable adsorption state.

[0006] (II) Technical scheme

[0007] In order to solve the above technical problem, the utility model provides a vacuum sucking disc, which comprises:

[0008] The adsorbing disc comprises a framework and an elastic body covered on the framework. At least one pressing raised portion is arranged at one end of the elastic body facing the framework.

[0009] The sucking disc cover is arranged above the adsorbing disc. The sucking disc cover is provided with a flange corresponding to the pressing raised portion and extending towards the framework. The flange is arranged on the framework.

[0010] A top pressing piece is arranged on the upper part of the suction disc cover; a connecting rod is arranged on the framework, and the connecting rod is connected with the top pressing piece after penetrating through the suction disc cover.

[0011] In some embodiments, the lower pressing protrusion comprises an outer lower pressing protruding ring and an inner lower pressing protruding ring arranged inside the outer lower pressing protruding ring, and the inner lower pressing protruding ring and the outer lower pressing protruding ring are both annular.

[0012] In some embodiments, the flange comprises an outer flange corresponding to the outer lower pressing protruding ring and an inner flange corresponding to the inner lower pressing protruding ring, and the outer flange and the inner flange are both annular.

[0013] In some embodiments, the framework and the elastic body are both disc-shaped, the diameter of the elastic body is larger than that of the framework, and the framework is arranged on the upper end of the elastic body and coaxially arranged with the elastic body.

[0014] In some embodiments, the connecting rod is arranged at the center of the framework, and the outer lower pressing protruding ring, the inner lower pressing protruding ring, the framework and the connecting rod are plastic parts of an integral structure.

[0015] In some embodiments, a plurality of waist-shaped deformation grooves are arranged on the outer side of the framework in an equidistant annular manner, a plurality of arc-shaped deformation grooves are arranged on the inner side of the framework in an equidistant annular manner, and the arc-shaped deformation grooves are arranged on the inner side of the waist-shaped deformation grooves.

[0016] In some embodiments, the outer flange, the inner flange and the suction disc cover are plastic parts of an integral structure.

[0017] In some embodiments, a connecting rod through groove is arranged at the center of the suction disc cover for the connecting rod to penetrate through.

[0018] In some embodiments, a T-shaped groove for mounting an external hook is arranged on the outer wall of the suction disc cover.

[0019] In some embodiments, the connecting rod is a screw rod, the top pressing piece is a knob threadedly connected with the screw rod, and the outer wall of the knob is provided with concave-convex patterns for anti-skid.

[0020] (Three) beneficial effects

[0021] Compared with the prior art, the vacuum suction disc provided by the utility model has the following advantages:

[0022] 1) One end of the framework towards the elastic body is provided with a lower pressing protrusion, the pressure can be directly transmitted to the elastic body through the cooperation of the lower pressing protrusion and the flange, the outer edge of the elastic body can be tightly attached to the outer wall, the pressing effect is good, the sealing performance is good, the suction force of the suction disc is strong, and the suction state is durable.

[0023] 2) The lower protrusions adopt outer and inner lower protruding rings, which can form multi-stage sealing and ensure sealing effect;

[0024] 3) The outer and inner lower protruding rings are both in the shape of a ring, and the ring-shaped protrusions are easier to form sealing, further ensuring sealing. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 It is a perspective view of the vacuum chuck of the present application;

[0027] Figure 2 It is an exploded view of the vacuum chuck of the present application;

[0028] Figure 3 It is a sectional view of the vacuum chuck of the present application;

[0029] Figure 4 It is an exploded view of the suction disc of the vacuum chuck of the present application;

[0030] Figure 5 It is a perspective view of the skeleton of the vacuum chuck of the present application;

[0031] Figure 6 It is a perspective view of the skeleton of the vacuum chuck of the present application from another angle;

[0032] Figure 7 It is a perspective view of the suction disc cover of the vacuum chuck of the present application;

[0033] The corresponding component names of the various reference numerals in the drawings are as follows: 1, suction disc; 11, skeleton; 12, elastic colloid; 13, connecting rod; 111, lower protrusion; 112, waist-shaped deformation groove; 113, arc-shaped deformation groove; 1111, outer lower protruding ring; 1112, inner lower protruding ring; 2, suction disc cover; 201, flange; 202, connecting rod through groove; 203, T-shaped groove; 2011, outer flange; 2012, inner flange; 3, top pressing piece; 301, concave-convex pattern. DETAILED DESCRIPTION

[0034] The present application will be described in detail below in combination with the drawings and specific embodiments.

[0035] Following, the embodiments of the present application are described through specific examples, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and various modifications or changes can be made to the details in the specification based on different views and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0036] It should be noted that the various aspects of the embodiments described below are within the scope of the appended claims. It should be apparent that the aspects described herein can be embodied in a wide variety of forms and that any specific structure and / or function described herein is merely illustrative. Based on the teachings herein one skilled in the art should appreciate that an aspect described herein can be implemented independently of any other aspects and that an aspect can be implemented both as any number of software and / or hardware structures and as any number of combinations of software and / or hardware structures. For example, an apparatus can be implemented using any number and combination of the aspects described herein.

[0037] It should also be noted that the figures provided in the following embodiments are only schematically illustrating the basic concepts of the present application, and only show the components related to the present application in the figures, not drawn according to the number, shape and size of the components in actual implementation, and the shape, number and proportion of each component in actual implementation can be arbitrarily changed, and the layout pattern of the components can be more complex.

[0038] In addition, in the following description, specific details are provided in order to facilitate a thorough understanding of examples. However, one skilled in the art will understand that the present application can be practiced without these specific details.

[0039] The technical solutions provided by the embodiments of the present application are described below in combination with the drawings.

[0040] Referring to Figures 1 to 7 The vacuum chuck provided by the present application comprises a suction disc 1, a chuck cover 2 and a pressing piece 3.

[0041] Referring to Figures 1 to 3The adsorption disc 1 comprises a skeleton 11 and an elastic colloid 12 coated on the skeleton 11, and at least one pressing protrusion 111 is arranged at one end of the skeleton 11 facing the elastic colloid 12; the pressing protrusion 111 corresponds to the outer edge of the elastic colloid 12, and the pressing protrusion 111 is used to press the outer edge of the elastic colloid 12 to tightly adhere to the external wall surface (wall, door plate, table plate, etc.). The adsorption disc cover 2 is arranged above the adsorption disc 1; the adsorption disc cover 2 extends towards the skeleton 11 and is provided with a flange 201 corresponding to the pressing protrusion 111, and the flange 201 is arranged on the end surface of the skeleton 11. The top pressing piece 3 is arranged at the upper part of the adsorption disc cover 2; the skeleton 11 is provided with a connecting rod 13, and the connecting rod 13 is connected with the top pressing piece 3 after penetrating through the adsorption disc cover 2. The top pressing piece generates vacuum negative pressure under the elastic colloid by lifting or pressing the connecting rod, so as to be adsorbed on the surface of the object. The skeleton can be a bowl-shaped skeleton or a flat skeleton. The bowl-shaped skeleton maintains vacuum adsorption by relying on the rebound force after discharging air by pressing downward, and the flat skeleton maintains adsorption by generating vacuum through upward tension. Regardless of the type of skeleton, the top pressing piece is used to maintain vacuum, and therefore the type of skeleton is not limited in the technical solution.

[0042] In this structure, the pressing protrusion is arranged at one end of the skeleton facing the elastic colloid, and the pressure can be directly transmitted to the elastic colloid through the cooperation of the pressing protrusion and the flange, so that the outer edge of the elastic colloid can be tightly adhered to the external wall surface, the pressing effect is good, the sealing performance is good, the adsorption force of the adsorption disc is strong, and the adsorption state is durable. In addition, the skeleton 11 is usually integrally formed with the elastic colloid 12 by insert injection molding, the downward pressing protrusion can better prevent the skeleton and the elastic colloid from being easily separated at the bottom, and the elastic colloid can be arranged below the skeleton, so that the skeleton does not need to be completely coated, and the material is saved.

[0043] In some embodiments, as shown in Figures 3 to 5 The pressing protrusion 111 comprises an outer pressing protruding ring 1111 and an inner pressing protruding ring 1112 arranged inside the outer pressing protruding ring 1111, the outer pressing protruding ring 1111 and the inner pressing protruding ring 1112 are coaxially arranged, and the outer pressing protruding ring 1111 and the inner pressing protruding ring 1112 are both annular. In this structure, the outer pressing protruding ring and the inner pressing protruding ring are adopted in the pressing protrusion, which can form multi-stage sealing and ensure the sealing effect; the outer pressing protruding ring and the inner pressing protruding ring are both annular, and the annular protrusion is easier to form sealing, which further ensures the sealing performance.

[0044] In some embodiments, as shown in Figure 3 and Figure 7As shown, the flange 201 includes an outer flange 2011 corresponding to the outer pressing convex ring 1111 and an inner flange 2012 corresponding to the inner pressing convex ring 1112, both of which are annular. With this structure, the outer flange 2011 and the inner flange 2012 are annular and cooperate with the outer pressing convex ring 1111 and the inner pressing convex ring 1112 respectively, so that a better pressing effect can be achieved.

[0045] In some embodiments, as shown in Figure 2 As shown, the skeleton 11 and the elastic gel 12 are both disc-shaped, the diameter of the elastic gel 12 is greater than that of the skeleton 11, and the skeleton 11 is located at the upper end of the elastic gel 12 and arranged coaxially with the elastic gel 12.

[0046] In some embodiments, as shown in Figure 5 and Figure 6 The connecting rod 13 is arranged at the center of the skeleton 11, and the outer pressing convex ring 1111, the inner pressing convex ring 1112, the skeleton 11 and the connecting rod 13 are a plastic piece of integral structure.

[0047] In some embodiments, as shown in Figure 5 and Figure 6 The outer side of the skeleton 11 is annularly and equidistantly provided with a plurality of waist-shaped deformation grooves 112, and the inner side is annularly and equidistantly provided with a plurality of arc-shaped deformation grooves 113, which are located inside the waist-shaped deformation grooves 112. Through the cooperation of the waist-shaped deformation grooves 112 and the arc-shaped deformation grooves 113, the skeleton 11 is more likely to deform, thereby making it easier to rotate the knob 3.

[0048] In some embodiments, as shown in Figure 7 In order to simplify the structure, the outer flange 2011, the inner flange 2012 and the suction cup cover 2 are a plastic piece of integral structure.

[0049] In some embodiments, as shown in Figure 1 , Figure 2 and Figure 7 The center of the suction cup cover 2 is provided with a connecting rod through groove 202 for the connecting rod 13 to pass through; the outer wall of the suction cup cover 2 is provided with a T-shaped groove 203 for mounting an external hook; the connecting rod 13 is a screw rod, the top pressing piece 3 is a knob threadedly connected with the screw rod, and the outer wall of the knob is provided with a concave-convex pattern 301 for anti-skid.

[0050] In the present specification, the same or similar parts among various embodiments can be referred to each other, and each embodiment focuses on the difference from other embodiments.

[0051] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements within the technical scope disclosed by the present application can be easily conceived by the person skilled in the art, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A vacuum suction cup, characterized in that, include: The adsorption plate (1) includes a frame (11) and an elastic colloid (12) covering the frame (11). At least one pressing protrusion (111) is provided at one end of the frame (11) facing the elastic colloid (12). A suction cup cover (2) is provided above the suction cup (1); the suction cup cover (2) extends toward the frame (11) and is provided with a flange (201) corresponding to the pressing protrusion (111), and the flange (201) abuts against the frame (11); The top pressing component (3) is located on the upper part of the suction cup cover (2); the frame (11) is provided with a connecting rod (13), which passes through the suction cup cover (2) and is connected to the top pressing component (3).

2. The vacuum suction cup as described in claim 1, characterized in that: The pressing protrusion (111) includes an outer pressing protrusion ring (1111) and an inner pressing protrusion ring (1112) located inside the outer pressing protrusion ring (1111). Both the inner pressing protrusion ring (1112) and the outer pressing protrusion ring (1111) are circular.

3. The vacuum suction cup as described in claim 2, characterized in that: The flange (201) includes an outer flange (2011) corresponding to the outer pressing ring (1111) and an inner flange (2012) corresponding to the inner pressing ring (1112), both of which are annular.

4. The vacuum suction cup as described in claim 1, characterized in that: Both the skeleton (11) and the elastic colloid (12) are disc-shaped. The diameter of the elastic colloid (12) is larger than that of the skeleton (11). The skeleton (11) is located at the upper end of the elastic colloid (12) and is arranged coaxially with the elastic colloid (12).

5. The vacuum suction cup as described in claim 2, characterized in that: The connecting rod (13) is located at the center of the frame (11). The outer lower pressing protrusion (1111), the inner lower pressing protrusion (1112), the frame (11) and the connecting rod (13) are plastic parts with an integral structure.

6. The vacuum suction cup as described in claim 1, characterized in that: The outer side of the skeleton (11) is provided with a plurality of waist-shaped deformation grooves (112) at equal intervals in an annular shape, and the inner side is provided with a plurality of arc-shaped deformation grooves (113) at equal intervals in an annular shape, wherein the arc-shaped deformation grooves (113) are located inside the waist-shaped deformation grooves (112).

7. The vacuum suction cup as described in claim 3, characterized in that: The outer flange (2011), the inner flange (2012), and the suction cup cover (2) are plastic parts with an integrated structure.

8. The vacuum suction cup as described in claim 1, characterized in that: The suction cup cover (2) has a connecting rod through groove (202) at its center for the connecting rod (13) to pass through.

9. The vacuum suction cup as described in claim 1, characterized in that: The suction cup cover (2) has a T-shaped groove (203) on its outer wall for installing external hooks.

10. The vacuum suction cup as described in claim 1, characterized in that: The connecting rod (13) is a screw, and the pressing member (3) is a knob that is threadedly connected to the screw. The outer wall of the knob is provided with a textured surface (301) for anti-slip purposes.

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