Anti-side-blowing Bernoulli suction cup

Abstract

The utility model discloses an anti-side-blowing Bernoulli sucker, which belongs to the technical field of suckers, and comprises an upper cover, an outer cover and a core body, the outer cover and the core body are detachably connected to the bottom end of the upper cover, the upper cover and the core body are located in the outer cover, the top end of the upper cover is fixedly connected with an air inlet head, the bottom end of the outer cover is provided with a suction port, and the core body corresponds to the suction port. An air groove is formed in the top end of the core body and corresponds to the air inlet head, an air cavity is formed in the bottom end of the upper cover and corresponds to the air groove, and an exhaust channel is arranged between the upper cover and the outer cover; according to the utility model, in the process of sucking a product by the sucking disc, diffused air changes the airflow direction through the exhaust channel formed after the upper cover and the outer cover are assembled, so that the airflow is output upwards, and the product displacement caused by side-blown airflow diffused around is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of suction cups, and more specifically, to an anti-side-blowing Bernoulli suction cup. Background Art

[0002] The Bernoulli suction cup utilizes the Bernoulli principle, that is, when the flow rate increases, the pressure decreases. The input compressed air turns inside the suction cup to form a backflow between the workpiece and the suction cup surface. The air flow passes through a very small gap between the suction cup body and the central plug, which greatly increases the air flow rate. The high-speed outflowing air flow generates a vacuum between the suction cup and the workpiece. The gasket of the suction cup keeps a certain distance between the suction cup and the workpiece to ensure that the air flow can flow out smoothly. The vacuum generation using the Bernoulli principle can gently grasp various workpieces with almost no contact.

[0003] Currently, when the Bernoulli suction cup sucks products, the compressed gas converges through the cavity and then outputs, generating negative pressure inside the suction cup, so as to form suction force between the bottom and the product to achieve grasping of the product. However, for most existing Bernoulli suction cups, the output direction of the air flow is usually from the bottom surface and diffuses around. When grasping some products placed at a relatively close distance, the side-blowing air flow diffusing around easily causes the products to displace, affecting the suction of the suction cup. Therefore, the utility model proposes an anti-side-blowing Bernoulli suction cup. Summary of the Utility Model

[0004] 1. Technical Problems to be Solved

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide an anti-side-blowing Bernoulli suction cup, aiming to solve the problem that for most existing Bernoulli suction cups, the output direction of the air flow is usually from the bottom surface and diffuses around. When grasping some products placed at a relatively close distance, the side-blowing air flow diffusing around easily causes the products to displace, affecting the suction of the suction cup.

[0006] 2. Technical Solutions

[0007] To solve the above problems, the utility model adopts the following technical solutions:

[0008] An anti-side-blowing Bernoulli suction cup includes an upper cover, an outer cover and a core body. The outer cover and the core body are both detachably connected to the bottom end of the upper cover, and both the upper cover and the core body are located inside the outer cover. The top end of the upper cover is fixedly connected with an air inlet head. The bottom end of the outer cover is provided with a suction port, and the core body corresponds to the suction port. The top end of the core body is provided with an air groove, and the air groove corresponds to the air inlet head. The bottom end of the upper cover is provided with an air cavity, and the air cavity corresponds to the air groove. An exhaust passage is arranged between the upper cover and the outer cover.

[0009] As a preferred embodiment of the present utility model, the air groove is arranged in a cross shape, and the air cavity and the exhaust passage are both arranged in a ring shape.

[0010] As a preferred embodiment of the present utility model, the bottom end of the upper cover is provided with an air outlet inclined surface, and the air outlet inclined surface corresponds to the air cavity.

[0011] As a preferred embodiment of the present utility model, an internal hexagonal bolt is threadedly connected between the upper cover and the outer cover, and a concave cross bolt is threadedly connected between the core body and the upper cover.

[0012] 3. Beneficial effects

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] 1) In this solution, compressed gas enters the air groove and the air cavity through the air inlet head. The air cavity enables the air flow to diffuse around the bottom of the upper cover through the gap between the upper cover and the core body, thereby forming a negative pressure to generate suction. The area with suction corresponds to the suction port. By aligning the suction port with the product, the product can be sucked. During the process of the suction cup sucking the product, the diffused gas changes the air flow direction through the exhaust passage formed after the upper cover and the outer cover are assembled, so that the air flow is output upward, effectively preventing the side blowing air flow diffusing around from causing the displacement of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view of the present utility model;

[0016] Figure 2 is the perspective view of the present utility model;

[0017] Figure 3 is the exploded view of the present utility model;

[0018] Figure 4 is the cross-sectional view of the present utility model;

[0019] Figure 5 is the structural diagram of the upper cover in the present utility model.

[0020] Explanation of the reference numerals in the drawings:

[0021] 1. Upper cover; 2. Outer cover; 3. Core body; 4. Air inlet head; 5. Suction port; 6. Air groove; 7. Air cavity; 8. Exhaust passage; 9. Air outlet inclined surface; 10. Internal hexagonal bolt; 11. Concave cross bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] Embodiment:

[0026] Please refer to Figures 1-5 , an anti-side-blowing Bernoulli suction cup, including an upper cover 1, an outer cover 2 and a core body 3. The outer cover 2 and the core body 3 are both detachably connected to the bottom end of the upper cover 1, and both the upper cover 1 and the core body 3 are located inside the outer cover 2. An air inlet head 4 is fixedly connected to the top end of the upper cover 1. A suction port 5 is opened at the bottom end of the outer cover 2, and the core body 3 corresponds to the suction port 5. An air groove 6 is opened at the top end of the core body 3, and the air groove 6 corresponds to the air inlet head 4. An air cavity 7 is opened at the bottom end of the upper cover 1, and the air cavity 7 corresponds to the air groove 6. An exhaust passage 8 is provided between the upper cover 1 and the outer cover 2.

[0027] In this embodiment, the overall size of the suction cup is 8 mm. After the upper cover 1 and the outer cover 2 are assembled, an exhaust passage 8 is formed. After the upper cover 1 and the core body 3 are assembled, a gas groove 6 and a gas chamber 7 where airflows converge are formed. Compressed gas enters the upper cover 1 through the air inlet head 4 and converges in the gas groove 6. The airflow enters the gas chamber 7 through the gas groove 6. There is a certain gap between the core body 3 and the bottom of the upper cover 1, and the airflow diffuses around the bottom of the upper cover 1 through the gap, thereby forming a negative pressure. The suction cup aligns the suction port 5 with the product and uses the suction force formed by the negative pressure to suck the product. During the product suction process, the airflow diffusing from the bottom of the upper cover 1 enters the outer cover 2 and is discharged upward through the exhaust passage 8 formed between the upper cover 1 and the outer cover 2.

[0028] Specifically, the gas groove 6 is arranged in a cross shape, and both the gas chamber 7 and the exhaust passage 8 are arranged in a ring shape.

[0029] In this embodiment, the cross-shaped gas groove 6 facilitates the convergence of compressed gas, and the ring-shaped gas chamber 7 facilitates the diffusion of the airflow around.

[0030] Specifically, an air outlet inclined surface 9 is provided at the bottom end of the upper cover 1, and the air outlet inclined surface 9 corresponds to the gas chamber 7.

[0031] In this embodiment, the air outlet inclined surface 9 can make the airflow blown out from the gas chamber 7 better adhere to the bottom of the upper cover 1 and diffuse, so that the airflow can stably enter the exhaust passage 8.

[0032] Specifically, an internal hexagonal bolt 10 is threadedly connected between the upper cover 1 and the outer cover 2, and a concave cross bolt 11 is threadedly connected between the core body 3 and the upper cover 1.

[0033] In this embodiment, the upper cover 1 and the outer cover 2 are fixedly connected by the internal hexagonal bolt 10, and the core body 3 and the upper cover 1 are fixedly connected by the concave cross bolt 11 to complete the assembly of the entire Bernoulli suction cup.

[0034] Working principle: Compressed gas enters the upper cover 1 through the air inlet head 4 and converges in the gas groove 6. The airflow enters the gas chamber 7 through the gas groove 6. The airflow in the gas chamber 7 diffuses around the bottom of the upper cover 1 through the gap between the core body 3 and the upper cover 1. The diffused airflow enters the outer cover 2 and is discharged upward through the exhaust passage 8. During the high-speed flow of the compressed gas, a negative pressure is formed inside the suction cup. The negative pressure adsorption area corresponds to the suction port 5. By aligning the suction port 5 with the product, the product is sucked using the suction force formed by the negative pressure.

[0035] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A Bernoulli suction cup for preventing side blowing, comprising an upper cover (1), an outer cover (2) and a core (3), characterized in that: The outer cover (2) and the core (3) are both detachably connected to the bottom end of the upper cover (1), and the upper cover (1) and the core (3) are both located inside the outer cover (2). The top end of the upper cover (1) is fixedly connected to an air inlet head (4). The bottom end of the outer cover (2) is provided with a suction port (5), and the core (3) corresponds to the suction port (5). The top end of the core (3) is provided with an air groove (6), and the air groove (6) corresponds to the air inlet head (4). The bottom end of the upper cover (1) is provided with an air cavity (7), and the air cavity (7) corresponds to the air groove (6). An exhaust passage (8) is provided between the upper cover (1) and the outer cover (2).

2. The side-blowing-proof Bernoulli suction cup according to claim 1, characterized in that: The air groove (6) is arranged in a cross shape, and the air cavity (7) and the exhaust channel (8) are both arranged in a ring shape.

3. The side-blowing-proof Bernoulli suction cup according to claim 2, characterized in that: The bottom end of the upper cover (1) is provided with an air outlet inclined surface (9), and the air outlet inclined surface (9) corresponds to the air cavity (7).

4. The side-blowing-proof Bernoulli suction cup according to claim 3, characterized in that: A hexagon socket bolt (10) is threadedly connected between the upper cover (1) and the outer cover (2), and a concave cross bolt (11) is threadedly connected between the core body (3) and the upper cover (1).

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