A vacuum chuck

Abstract

The utility model discloses a kind of vacuum chuck, including chuck shell and vacuum chucking disc, its special is at, chuck shell and the vacuum chucking disc between being equipped with chuck compression ring, the chuck shell is equipped with screwing mechanism, the vacuum chucking disc is equipped with center connecting piece, the vacuum chucking disc and the center connecting piece are integrally formed by injection molding, one end of the center connecting piece passes through the chuck compression ring and is connected to the screwing mechanism, it is used to make the center connecting piece along axis direction tension / loosen the vacuum chucking disc, it has big and beautiful appearance, prevent air infiltration, the advantage that adsorption is more firm.

Description

Technical Field

[0001] This utility model belongs to the technical field of household products, and more specifically, it relates to a vacuum suction cup. Background Technology

[0002] Currently, suction cup hangers are widely used in daily life. Suction cups generally use a lever or knob to expel air, thus achieving negative pressure adhesion. Chinese utility model patent application number CN201820080271.6 discloses a suction cup hanger, including a suction cup base, a suction cup film at the bottom of the suction cup base, a suction cup center seat and a rotating base connected to the suction cup base. The suction cup center seat is located in the center of the suction cup base, and an outer cover is provided on the top of the suction cup base. The outer cover has a through hole in the center for the end of the suction cup center seat to pass through. The through hole has a claw that engages and positions with the suction cup center seat. The rotating base has several first inclined platforms on its circumference, and the inner circumference of the outer cover has several second inclined platforms that correspond to and cooperate with the first inclined platforms. By rotating the rotating base, the suction cup center seat is lifted upwards, causing the suction cup film to adhere tightly to the wall or other working surface. However, when this type of product rotates, it is lifted as a whole, leaving gaps at the bottom. Over time, air can seep in, resulting in weak adhesion.

[0003] Therefore, this utility model provides a vacuum suction cup. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention provides a vacuum suction cup, which tightens the central connecting piece by a tightening mechanism, so that the suction cup pressure ring presses the vacuum suction cup tightly, thereby leaving no gaps at the bottom of the vacuum suction cup, preventing air from seeping in, and thus achieving a complete vacuum effect, making the adsorption more firm.

[0005] To achieve the above-mentioned technical objectives, this utility model adopts the following technical solution:

[0006] A vacuum suction cup includes a suction cup shell and a vacuum adsorption disk. The key feature is that a suction cup pressure ring is provided between the suction cup shell and the vacuum adsorption disk. The suction cup shell is provided with a tightening mechanism, and the vacuum adsorption disk is provided with a central connecting member. The vacuum adsorption disk and the central connecting member are integrally molded using injection molding. One end of the central connecting member passes through the suction cup pressure ring and is connected to the tightening mechanism, which is used to tighten / loosen the vacuum adsorption disk along the axial direction.

[0007] The vacuum suction cup described above is characterized in that the tightening mechanism includes a central adjusting nut, a hexagonal nut, and several first inclined platforms disposed on the inner annular wall of the suction cup housing. The central adjusting nut has a through hole, the lower end of which is hexagonal. The central adjusting nut has several second inclined platforms, which are adapted to the first inclined platforms. The central connecting member has a hexagonal support at the bottom and an external thread at the top. The central adjusting nut is embedded in the suction cup housing, the second inclined platforms are in contact with the first inclined platforms, the central connecting member passes through the through hole, the support is embedded in the lower end of the through hole, and the hexagonal nut is screwed into the external thread.

[0008] The vacuum suction cup is characterized in that the outer ring wall of the central adjusting nut is provided with a plurality of radially protruding protrusions, and the second inclined platform is provided at the lower end of the protrusions.

[0009] The vacuum suction cup described is special in that it has 6 bumps.

[0010] The vacuum suction cup is characterized in that the vacuum suction cup includes a base adhesive and an adhesive layer, wherein the base adhesive is a TPU base adhesive, and the adhesive layer is uniformly applied to the surface of the TPU base adhesive.

[0011] The vacuum suction cup is characterized in that a handle is provided on the outer edge of the TPU base adhesive.

[0012] In summary, compared with the prior art, due to the adoption of this structure, the vacuum adsorption plate and the central connector are integrally molded by injection molding. The bottom of the central connector has a hexagonal support that is embedded in the central adjusting nut. One end of the central connector passes through the suction cup pressure ring and is connected to the tightening mechanism. The suction cup pressure ring presses the vacuum adsorption plate in the circumferential direction. Therefore, the beneficial effects of this utility model are: there will be no gaps at the bottom of the vacuum adsorption plate, which is elegant and beautiful, and can prevent air from seeping in, achieving a complete vacuum effect and making the adsorption more firm.

[0013] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention;

[0015] Figure 2 This is a perspective view of the present invention;

[0016] Figure 3 This is a cross-sectional view of the present invention;

[0017] Figure 4 A three-dimensional view of the suction cup casing;

[0018] Figure 5A three-dimensional view of the center adjusting nut. Detailed Implementation

[0019] The following description, in conjunction with the accompanying drawings and specific embodiments, illustrates the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0020] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings of this specification are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, the terms used in this specification such as "upper," "lower," "left," "right," "middle," "front," "back," "inner," "outer," "first," and "second," etc., are merely for clarity and not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this utility model. Specific structures can be described with reference to the accompanying drawings of this patent application.

[0021] Please refer to Figures 1-5 As shown, this utility model discloses a vacuum suction cup, which includes a suction cup shell 1 and a vacuum adsorption disk 2. A suction cup pressure ring 3 is provided between the suction cup shell 1 and the vacuum adsorption disk 2. The vacuum adsorption disk 2 is provided with a central connecting member 5. The vacuum adsorption disk 2 and the central connecting member 5 are integral parts formed by injection molding and rubber coating. The central connecting member 5 is located in the middle of the vacuum adsorption disk. One end of the central connecting member 5 passes through the suction cup pressure ring 3 and is connected to a tightening mechanism 4. In this embodiment, the tightening mechanism 4 includes a central adjusting nut 41, a hexagonal nut 42, and several first inclined platforms 43 provided on the inner ring wall of the suction cup shell 1. The central adjusting nut 41 is provided with a through hole 411. The lower end of the through hole 411 is hexagonal. The central adjusting nut 41 is provided with several... The second inclined platform 412 is adapted to the first inclined platform 43. The bottom of the central connector 5 is provided with a hexagonal support 51, which corresponds to the hexagonal shape at the lower end of the through hole 411. The top of the central connector 5 is provided with an external thread 52. During assembly, the central adjusting nut 41 is embedded in the suction cup housing 1. The second inclined platform 412 fits against the first inclined platform 43. The first inclined platform 43 supports the second inclined platform 412 from below. The end of the central connector 5 passes through the through hole 411. The hexagonal support 51 is embedded in the lower end of the through hole 411. The hexagonal nut 42 is screwed into the external thread 52, thereby installing and fixing the central adjusting nut 41 in the suction cup housing 1 and clamping the lower end of the central adjusting nut 41 onto the support 51.

[0022] When this invention is in use, the rotating suction cup housing 1, under the action of the first inclined platform 43 and the second inclined platform 412, lifts and tightens the central connecting piece 5 upwards, thereby expelling the air between the vacuum adsorption disk 2 and the adsorption contact surface and creating a vacuum state, achieving negative pressure adhesion. At the same time, the downward reaction force generated when the central connecting piece 5 is lifted upwards presses the suction cup pressure ring 3 downwards along the circumference of the suction cup housing 1. The suction cup pressure ring 3 presses the vacuum adsorption disk 2 in the circumferential direction. It should be noted that the suction cup pressure ring 3 pressing the vacuum adsorption disk 2 in the circumferential direction can make the downward pressure on the vacuum adsorption disk 2 more uniform. In addition, the suction cup pressure ring 2 can reduce the friction force when the suction cup housing 1 rotates. When the vacuum suction cup needs to be removed, the suction cup housing can be rotated in the opposite direction. With this structure, there will be no gaps at the bottom of the vacuum adsorption disk 2, which is elegant and beautiful, and can prevent air from seeping in, achieving a complete vacuum effect and making the adsorption more firm.

[0023] As a further preferred technical solution of this utility model, refer to Figure 2 , Figure 4 and Figure 5 As shown, the outer ring wall of the central adjusting nut 41 is provided with a plurality of radially protruding protrusions 413, and the second inclined platform 412 is provided at the lower end of the protrusions. In this embodiment, there are 6 protrusions 413, and correspondingly, there are also 6 second inclined platforms 412 and 6 first inclined platforms 43.

[0024] As a further preferred technical solution of this utility model, refer to Figure 1 , Figure 2 As shown, the vacuum adsorption tray 2 includes a base adhesive 21 and an adhesive layer 22. The base adhesive 21 is a TPU base adhesive, and the adhesive layer 22 is evenly coated on the surface of the TPU base adhesive. This arrangement makes adsorption more convenient.

[0025] As a further preferred technical solution of this utility model, refer to Figure 1 , Figure 2 As shown, a handle 211 is provided on the outer edge of the TPU base adhesive. With this design, when the user needs to remove the vacuum suction cup, he / she only needs to pull the handle 211 upward to remove the vacuum suction cup, which is convenient to use.

[0026] In summary, compared with the prior art, due to the adoption of this structure, the vacuum adsorption plate and the central connector are integrally molded by injection molding. The bottom of the central connector has a hexagonal support that is embedded in the central adjusting nut. One end of the central connector passes through the suction cup pressure ring and is connected to the tightening mechanism. The suction cup pressure ring presses the vacuum adsorption plate in the circumferential direction. Therefore, the beneficial effects of this utility model are: there will be no gaps at the bottom of the vacuum adsorption plate, which is elegant and beautiful, and can prevent air from seeping in, achieving a complete vacuum effect and making the adsorption more firm.

[0027] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A vacuum chuck comprising a chuck housing and a vacuum suction plate, characterized in that: A suction cup pressure ring is provided between the suction cup shell and the vacuum adsorption disk. The suction cup shell is provided with a tightening mechanism. The vacuum adsorption disk is provided with a central connecting member. The vacuum adsorption disk and the central connecting member are integral parts formed by injection molding and rubber coating. One end of the central connecting member passes through the suction cup pressure ring and is connected to the tightening mechanism. It is used to tighten / loosen the vacuum adsorption disk along the axial direction.

2. A vacuum chuck as claimed in claim 1, characterized in that: The tightening mechanism includes a central adjusting nut, a hexagonal nut, and several first inclined platforms located on the inner annular wall of the suction cup housing. The central adjusting nut has a through hole with a hexagonal lower end. The central adjusting nut also has several second inclined platforms that are adapted to the first inclined platforms. The central connector has a hexagonal support at the bottom and an external thread at the top. The central adjusting nut is embedded in the suction cup housing, the second inclined platforms fit against the first inclined platforms, the central connector passes through the through hole, the support is embedded in the lower end of the through hole, and the hexagonal nut is screwed into the external thread.

3. A vacuum suction cup according to claim 2, characterized in that: The outer ring wall of the central adjusting nut is provided with a plurality of radially protruding protrusions, and the second inclined platform is provided at the lower end of the protrusions.

4. A vacuum suction cup according to claim 3, characterized in that: There are 6 bumps.

5. A vacuum suction cup according to claim 1, characterized in that: The vacuum adsorption tray includes a base adhesive and an adhesive layer. The base adhesive is a TPU base adhesive, and the adhesive layer is evenly applied to the surface of the TPU base adhesive.

6. A vacuum suction cup according to claim 5, characterized in that: The TPU base adhesive has a handle on its outer edge.

Images