Buckle type rubber structure for vacuum chuck and vacuum chuck

Abstract

The buckle type rubber structure for the vacuum suction cup comprises a pressing disc (1) used for being detachably connected with a suction cup framework, the outer portion of the pressing disc (1) is connected with a flexible gasket (2), and the pressing disc (1) is used for limiting the flexible gasket (2) after being connected with the suction cup framework. And one side of the flexible gasket (2) extends to the lower part of the pressure plate (1) and forms a lip edge (201). The suction effect of the vacuum chuck can be improved, and the replacement cost of the rubber sheet is reduced.

Description

Technical Field

[0001] The utility model relates to a vacuum suction cup, in particular to a snap - type rubber structure for a vacuum suction cup and a vacuum suction cup. Background Art

[0002] In order to ensure the sealing performance of the cavity area during vacuum pumping, a rubber sheet is installed at the bottom of the suction cup skeleton of the vacuum suction cup, so as to form a seal by the mutual contact between the rubber sheet and the object surface, and avoid air leakage caused by the gap at the fitting part.

[0003] On this basis, the traditional installation method of the rubber sheet for the vacuum suction cup is to fix the rubber sheet at the bottom of the skeleton. However, since the rubber sheet made of soft rubber is easy to be damaged when contacting sharp objects during use, or is easy to be deformed due to frequent use, the sealing performance is reduced. Therefore, considering stability and service life, manufacturers usually use hard rubber instead of soft rubber as the rubber sheet material to extend the stability and sealing performance of the vacuum suction cup during long - term use.

[0004] However, the defect of using hard rubber as the rubber sheet material is that, due to the relatively weak deformation ability of hard rubber, when adsorbing on the surface of a rough object, the problem of incomplete sealing will occur, thus reducing the adsorption effect and application range of the vacuum suction cup.

[0005] Therefore, the existing vacuum suction cups have the problem of poor adsorption effect. Content of the Utility Model

[0006] The purpose of the utility model is to provide a snap - type rubber structure for a vacuum suction cup and a vacuum suction cup. It can improve the adsorption effect of the vacuum suction cup and reduce the replacement cost of the rubber sheet.

[0007] The technical solution of the utility model: A snap - type rubber structure for a vacuum suction cup includes a pressure plate for detachably connecting to the suction cup skeleton. A flexible gasket is connected to the outside of the pressure plate. The pressure plate is used to limit the flexible gasket after connecting to the suction cup skeleton. One side of the flexible gasket extends below the pressure plate and forms a lip.

[0008] In the aforementioned snap - type rubber structure for a vacuum suction cup, the material of the flexible gasket is soft rubber, and the material of the pressure plate is hard rubber. The hardness of the pressure plate is greater than that of the flexible gasket.

[0009] In the aforementioned snap - type rubber structure for a vacuum suction cup, a support frame is connected to the inner side of the flexible gasket. The pressure plate limits the flexible gasket through the support frame.

[0010] In the aforementioned snap - type rubber structure for a vacuum suction cup, a notch is formed on the flexible gasket outside the support frame. The pressure plate is snap - connected to the flexible gasket through the notch.

[0011] In the aforementioned snap - type rubber structure for a vacuum suction cup, a clamping interface for snap - connecting to the suction cup skeleton is provided on the pressure plate.

[0012] In the aforementioned snap - type rubber structure for a vacuum suction cup, an annular deformation groove is provided in the middle of the lip edge, and one end of the deformation groove is in communication with the outside.

[0013] In the aforementioned snap - type rubber structure for a vacuum suction cup, an air port for ventilation is provided in the middle of the pressure plate, and a dust - proof sheet is snap - connected inside the air port.

[0014] A vacuum suction cup, which includes the aforementioned snap - type rubber structure for a vacuum suction cup.

[0015] In the aforementioned vacuum suction cup, it includes a suction cup skeleton. The bottom of the suction cup skeleton is snap - connected to the pressure plate and a flexible gasket. The lower end of the flexible gasket extends to the outside of the pressure plate and forms a lip edge.

[0016] In the aforementioned vacuum suction cup, a clamping part for snap - connecting to the pressure plate is provided at the bottom of the suction cup skeleton, and an installation cavity for accommodating the pressure plate and the flexible gasket is provided on the suction cup skeleton outside the clamping part.

[0017] In the aforementioned vacuum suction cup, the middle part of the lip edge is separated from the suction cup skeleton through the deformation groove and there is a gap.

[0018] Compared with the prior art, the present utility model has the following characteristics:

[0019] (1) Through the structural cooperation of the pressure plate and the flexible gasket in the present utility model, after installation, the pressure plate can cooperate with the suction cup skeleton to clamp and limit the flexible gasket from both sides, making the flexible gasket in a relatively fixed state with the suction cup skeleton; the flexible gasket made of soft rubber can be used as a sealing material to seal the surface of the object after installation, thereby improving the adsorption performance of the vacuum suction cup and enabling it to be used for stable adsorption on a rough surface; when the flexible gasket is damaged during use, the user only needs to remove the pressure plate to take down the flexible gasket and replace it separately, thus effectively reducing the replacement cost of the rubber and facilitating the operation of the user.

[0020] (2) By defining the snap - fit structure between the pressure plate and the flexible gasket and setting the support frame, the limiting effect of the pressure plate on the flexible gasket can be improved, preventing the flexible gasket from directly falling out from the snap - fit position due to excessive deformation, and enhancing the limiting effect of the pressure plate on the flexible gasket.

[0021] (3) By snap - connecting the pressure plate to the suction cup skeleton through the clamping interface, it is convenient for the user to disassemble and assemble the pressure plate, and further reduces the difficulty of replacing the flexible gasket.

[0022] (4) On this basis, through the structural limitation of the vacuum suction cup, the snap - type rubber structure can be stably fastened to the bottom of the suction cup skeleton, thus ensuring its installation and use stability; through the cooperative setting of the deformation groove, on the one hand, it can improve the deformation ability of the lip, enabling the lip to form a larger bending amplitude under the adsorption action and fit the surface of the object; on the other hand, it can cooperate with the installation cavity to improve the fixing effect on the flexible gasket, that is, the flexible gasket can be stably snapped into the installation cavity through deformation, so that an interference fit can be used to connect the flexible gasket and the installation cavity;

[0023] Therefore, the utility model can improve the adsorption effect of the vacuum suction cup and reduce the replacement cost of the rubber. Brief Description of the Drawings

[0024] Figure 1 is a cross - sectional view of the snap - type rubber structure;

[0025] Figure 2 is an installation schematic diagram of the snap - type rubber structure on the suction cup skeleton;

[0026] Figure 3 is Figure 2 's cross - sectional view.

[0027] The reference numerals in the drawings are: 1 - pressure plate, 2 - flexible gasket, 3 - support frame, 4 - dust - proof sheet, 5 - suction cup skeleton, 101 - snap - connection port, 102 - air port, 201 - lip, 202 - notch, 203 - deformation groove, 501 - snap - connection part, 502 - installation cavity. Detailed Description of the Preferred Embodiments

[0028] The following further describes the present utility model in conjunction with the drawings and embodiments, but it shall not be used as a basis for limiting the present utility model.

[0029] Embodiment 1. A snap - type rubber structure for a vacuum suction cup, the structure is as Figure 1-2 shown, including a pressure plate 1 detachably connected to the bottom of the suction cup skeleton, a flexible gasket 2 is connected to the outside of the pressure plate 1, the pressure plate 1 is used to snap - limit the flexible gasket 2 after connecting to the suction cup skeleton, and one side of the flexible gasket 2 extends below the pressure plate 1 and forms a lip 201 for fitting the surface of the object.

[0030] The material of the flexible gasket 2 is soft rubber, the material of the pressure plate 1 is hard rubber, and the hardness of the pressure plate 1 is greater than that of the flexible gasket 2.

[0031] A support frame 3 is connected to the inner side of the flexible gasket 2, the support frame 3 is made of a hard material, and the pressure plate 1 and the suction cup skeleton squeeze - limit the flexible gasket 2 from the upper and lower sides of the support frame 3, so that the flexible gasket 2 and the suction cup skeleton are fixed to each other.

[0032] A notch 202 is formed on the flexible washer 2 outside the support frame 3. The pressure plate 1 is buckled and connected to the flexible washer 2 through the notch 202, and the flexible washer 2 and the pressure plate 1 form an integral structure after being spliced with each other.

[0033] The pressure plate 1 is provided with a clamping interface 101 for buckling and connecting the suction cup skeleton. The clamping interfaces 101 are annularly distributed around the top of the pressure plate 1, and the cross-sectional shape of the clamping interface 101 is C-shaped.

[0034] An annular deformation groove 203 is provided in the middle of the lip 201, and one end of the deformation groove 203 is communicated with the outside.

[0035] An air port 102 for ventilation is provided in the middle of the pressure plate 1, and a dust-proof sheet 4 is buckled and connected in the air port 102.

[0036] During installation of this embodiment, the operator can sleeved the flexible washer 2 on the outside of the pressure plate 1, and make the two buckle with each other through the cooperation of the notch 202 to form an integral structure. After the pressure plate 1 and the flexible washer 2 are buckled, the operator can buckle it to the bottom of the suction cup skeleton through the clamping interface 101, thus completing the installation of the snap-in rubber structure. Through the flexible washer 2 made of soft rubber material, stable adsorption on the rough surface can be realized, thereby improving the adsorption effect and application range of the vacuum suction cup.

[0037] When the lip 201 is damaged and causes sealing problems in the later stage, the user only needs to remove the snap-in rubber structure from the suction cup skeleton, and then the flexible washer 2 can be replaced separately, effectively reducing the replacement cost of the snap-in rubber structure.

[0038] Embodiment 2. The vacuum suction cup is configured as Figure 2-3 shown, including a suction cup skeleton 5. The outer shape of the suction cup skeleton 5 is disc-shaped or elliptical disc-shaped. The bottom of the suction cup skeleton 5 is buckled and connected with the snap-in rubber structure in Embodiment 1. The lower end of the flexible washer 2 in the snap-in rubber structure extends to the outside of the pressure plate 1 and forms a lip 201. The pressure plate 1 and the lip 201 form a suction cavity after enclosing. The top of the suction cup skeleton 5 can be connected with a suction cup handle and a suction pump in a conventional manner, so that the suction pump can suck the air in the suction cavity through the air port 102 to realize the adsorption function.

[0039] The bottom of the suction cup skeleton 5 is provided with a clamping part 501 for buckling and connecting the clamping interface 101. The suction cup skeleton 5 outside the clamping part 501 is provided with an installation cavity 502 for accommodating the pressure plate 1 and the flexible washer 2. After the pressure plate 1 and the flexible washer 2 are buckled with each other, they are buckled and installed in the installation cavity 502 together. The support frame 3 is horizontally arranged in the installation cavity 502 after installation.

[0040] In the aforementioned vacuum suction cup, the middle part of the lip 201 is separated from the suction cup skeleton 5 through the deformation groove 203 and there is a gap left.

[0041] In this embodiment, based on the snap - type rubber structure in Embodiment 1, the structure of the suction cup skeleton 5 is further defined, so that the snap - type rubber structure can be stably fastened to the bottom of the suction cup skeleton 5 through the cooperation of the clamping member 501 and the installation cavity 502 during installation. After the snap - type rubber structure is fastened, through the cooperation of the support frame 3 and the pressure plate 1, the flexible washer 2 can be extruded and limited, preventing the flexible washer 2 from being unable to be curled and deformed by external force and disengaging from the installation cavity 502 in this state, and improving the fixing effect on the flexible washer 2 made of soft rubber material.

Claims

1. A snap-on rubber structure for a vacuum suction cup, characterized in that: The invention comprises a pressure plate (1) for detachably connecting to a suction cup frame, wherein a flexible gasket (2) is connected to the outside of the pressure plate (1), and the pressure plate (1) is used to limit the position of the flexible gasket (2) after connecting to the suction cup frame, and one side of the flexible gasket (2) extends to the bottom of the pressure plate (1) and forms a lip (201).

2. The snap-on rubber structure for a vacuum suction cup according to claim 1, characterized in that: The inner side of the flexible gasket (2) is connected to a support frame (3), and the pressure plate (1) limits the position of the flexible gasket (2) via the support frame (3).

3. The snap-on rubber structure for a vacuum suction cup according to claim 2, characterized in that: A notch (202) is formed on the flexible gasket (2) outside the support frame (3), and the pressure plate (1) is buckled and connected to the flexible gasket (2) via the notch (202).

4. The snap-on rubber structure for a vacuum suction cup according to claim 1, characterized in that: The pressure plate (1) is provided with a card interface (101) for buckling and connecting with the suction cup frame.

5. The snap-on rubber structure for a vacuum suction cup according to claim 1, characterized in that: An annular deformation groove (203) is provided in the middle of the lip edge (201), and one end of the deformation groove (203) is communicated with the outside.

6. The snap-on rubber structure for a vacuum suction cup according to claim 1, characterized in that: An air port (102) for ventilation is provided in the middle of the pressure plate (1), and a dustproof sheet (4) is buckled and connected inside the air port (102).

7. Vacuum suction cup, characterized in that: The vacuum suction cup comprises the snap-on rubber structure for the vacuum suction cup as described in any one of claims 1-6.

8. The vacuum suction cup according to claim 7, characterized in that: It comprises a suction cup frame (5), the bottom of which is buckled to connect the pressure plate (1) and the flexible gasket (2), and the lower end of the flexible gasket (2) extends to the outside of the pressure plate (1) to form a lip edge (201).

9. The vacuum suction cup according to claim 8, characterized in that: The bottom of the suction cup frame (5) is provided with a clamping piece (501) for buckling and connecting with the pressure plate (1), and the suction cup frame (5) outside the clamping piece (501) is provided with a mounting cavity (502) for accommodating the pressure plate (1) and the flexible gasket (2).

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