Bernoulli suction cup

Abstract

The utility model discloses a Bernoulli sucking disc, which belongs to the technical field of sucking discs and comprises an upper cover, a side air inlet nozzle is fixedly connected to the top end of the upper cover, a core body is fixedly connected in the upper cover, an air inlet cavity is arranged between the core body and the upper cover, the air inlet cavity is communicated with the side air inlet nozzle, and a plurality of air outlet notches are formed in the core body. An air guide cavity is formed in the bottom end of the upper cover, the periphery, around the core body, of the air guide cavity is communicated with the air outlet notches, and an air guide convex piece is fixedly connected to the bottom end of the upper cover; according to the Bernoulli sucker, the side enclosure blocks the periphery of the bottom of the Bernoulli sucker, exhaust from the periphery of the bottom is changed into upward exhaust, the air is exhausted upwards through the multiple air outlet holes, and therefore when the Bernoulli sucker adsorbs objects through the pore plate, the periphery of the bottom can be kept in a good negative pressure state, and the negative pressure adsorption area of the bottom is larger; and the negative pressure value between the suction cup and an object can be guaranteed, and the suction effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sucking disc, more specifically, to a bernoulli sucking disc. BACKGROUND

[0002] Bernoulli sucking disc is a non-contact sucking disc based on Bernoulli principle, Bernoulli principle points out that in fluid flow, fluid velocity increase will lead to fluid pressure drop, when Bernoulli sucking disc works, the external compressed air flows at high speed in the small gap between sucking disc and the surface of the object to be carried, due to the increase of air flow velocity, the air pressure flowing through the gap drops, thereby forming a low pressure area between sucking disc and the object, so that it is adsorbed without direct contact.

[0003] At present, Bernoulli sucking disc is used for adsorbing and grabbing objects, and is widely used in the field of automation, but most of the existing Bernoulli sucking discs, in the process of use, the gas is usually sprayed outward from the bottom four sides, the bottom four sides are exhaust area, so that only the central part of the bottom end of the sucking disc has adsorption capacity, and the adsorption effect is poor. UTILITY MODEL CONTENT

[0004] 1. TECHNICAL PROBLEM TO BE SOLVED

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a Bernoulli sucking disc, which aims to solve the problem that in the prior art, the gas is usually sprayed outward from the bottom four sides in the process of use, the bottom four sides are exhaust area, so that only the central part of the bottom end of the sucking disc has adsorption capacity, and the adsorption effect is poor.

[0006] 2. TECHNICAL SCHEME

[0007] In order to solve the above problems, the utility model adopts the following technical scheme:

[0008] A Bernoulli sucking disc, comprising an upper cover, the top end of the upper cover is fixedly connected with a side air inlet nozzle, the upper cover is fixedly connected with a core body inside, an air inlet cavity is arranged between the core body and the upper cover, and the air inlet cavity is in communication with the side air inlet nozzle, a plurality of air outlet slots are formed in the core body, and the plurality of air outlet slots are in communication with the air inlet cavity, a wind guide cavity is arranged at the bottom end of the upper cover, and the wind guide cavity is in communication with the plurality of air outlet slots around the four sides of the core body, a wind guide tab is fixedly connected to the bottom end of the upper cover, and the wind guide tab corresponds to the wind guide cavity, a perforated plate is fixedly connected to the bottom end of the wind guide tab, and the perforated plate corresponds to the wind guide tab, a side wall is fixedly connected to the bottom end of the upper cover, and the wind guide tab and the perforated plate are located in the side wall, a plurality of air outlet holes are formed in the top end of the upper cover, and the plurality of air outlet holes correspond to the wind guide tab.

[0009] As one preferred scheme of the utility model, the top end of the upper cover is provided with a plurality of screws, and the plurality of screws are all threaded into the air outlet slot.

[0010] As one preferred scheme of the utility model, the top end of the core body is fixedly connected with a sealing strip, and the sealing strip is in contact with the top wall of the upper cover.

[0011] As one preferred scheme of the utility model, the top end of the upper cover is provided with two connecting holes, and the two connecting holes are symmetrically distributed.

[0012] 3. Beneficial effects

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) in the scheme, the gas enters the air inlet cavity through the side air inlet nozzle, then enters the air outlet slot, the air outlet slot makes the gas from the inside of the air guide fin to the bottom of the Bernoulli suction disc, the side wall ring blocks the bottom of the Bernoulli suction disc, so that the exhaust gas is changed from the bottom to upward, the gas is discharged upward through the plurality of air outlet holes, so that when the Bernoulli suction disc adsorbs the object through the perforated plate, the bottom can keep a good negative pressure state, the bottom negative pressure adsorption area is larger, the stress is more uniform, the negative pressure value between the suction disc and the object can be guaranteed, and the adsorption effect is better. BRIEF DESCRIPTION OF DRAWINGS

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

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

[0017] Figure 3 It is the explosion view of the utility model;

[0018] Figure 4 It is the front view of the utility model;

[0019] Figure 5 It is the first side view of the utility model;

[0020] Figure 6 It is the second side view of the utility model;

[0021] Figure 7 It is the structure diagram of the upper cover in the utility model.

[0022] Explanation of reference numerals in the drawing:

[0023] 1, upper cover; 2, side air inlet nozzle; 3, core body; 4, air inlet cavity; 5, air outlet slot; 6, air guide cavity; 7, air guide fin; 8, perforated plate; 9, side wall ring; 10, air outlet hole; 11, screw; 12, sealing strip; 13, connecting hole. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] In the description of the utility model, it should be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] Embodiment:

[0028] Please refer to Figures 1-7 A Bernoulli chuck includes an upper cover 1, a side air inlet nozzle 2 is fixedly connected to the top end of the upper cover 1, a core body 3 is fixedly connected in the upper cover 1, an air inlet cavity 4 is arranged between the core body 3 and the upper cover 1, the air inlet cavity 4 is in communication with the side air inlet nozzle 2, a plurality of air outlet slots 5 are formed in the core body 3 and in communication with the air inlet cavity 4, a wind guide cavity 6 is arranged at the bottom end of the upper cover 1 and in communication with the plurality of air outlet slots 5 around the core body 3, a wind guide tab 7 is fixedly connected to the bottom end of the upper cover 1 and corresponds to the wind guide cavity 6, a perforated plate 8 is fixedly connected to the bottom end of the wind guide tab 7 and corresponds to the wind guide tab 7, a side wall 9 is fixedly connected to the bottom end of the upper cover 1, and the wind guide tab 7 and the perforated plate 8 are both located in the side wall 9, a plurality of air outlet holes 10 are formed in the top end of the upper cover 1 and correspond to the wind guide tab 7.

[0029] In the embodiment, the upper cover 1 and the core 3 are assembled to form the air inlet cavity 4, the air guide fin 7 is fixed to the inner bottom of the upper cover 1 to form an air guide channel which is communicated with the air guide cavity 6, the plurality of air outlet holes 10 are communicated with the air guide channel, when the object is adsorbed, the external air source is connected through the side air inlet nozzle 2, the gas enters the air inlet cavity 4 between the upper cover 1 and the core 3 through the side air inlet nozzle 2, and then enters the air guide cavity 6 through the plurality of air outlet slots 5. The air guide cavity 6 makes the gas evenly diffuse and spray around through the air guide channel in the air guide fin 7, the side wall 9 blocks the gas to change the spraying direction, so that the gas is discharged upward from the plurality of air outlet holes 10, and a negative pressure area is formed at the bottom of the Bernoulli adsorption disc in the gas flow process, and the object is adsorbed through the through holes which are uniformly distributed on the hole plate 8.

[0030] Specifically, the top end of the upper cover 1 is provided with a plurality of screws 11, and the plurality of screws 11 are all screwed into the air outlet slots 5 in the upper cover 1.

[0031] In the embodiment, the upper cover 1 and the core 3 are screwed through the plurality of screws 11, so that the core 3 forms an air inlet cavity 4 with high sealing performance in the upper cover 1, and the gas flow is stable.

[0032] Specifically, the top end of the core 3 is fixedly connected with a sealing strip 12, and the sealing strip 12 is in contact with the top wall of the upper cover 1.

[0033] In the embodiment, the sealing strip 12 is arranged between the core 3 and the upper cover 1, so that the sealing effect of the air inlet cavity 4 is further improved.

[0034] Specifically, the top end of the upper cover 1 is provided with two connecting holes 13, and the two connecting holes 13 are symmetrically distributed.

[0035] In the embodiment, the two connecting holes 13 are used in cooperation with bolts, so that the Bernoulli adsorption disc is conveniently connected with external equipment.

[0036] Working principle: when the object is adsorbed, the external air source is connected through the side air inlet nozzle 2, the high-speed flowing gas enters the air inlet cavity 4 between the upper cover 1 and the core 3 through the side air inlet nozzle 2, and then enters the air guide cavity 6 through the plurality of air outlet slots 5. The air guide cavity 6 makes the gas evenly diffuse and spray around through the air guide channel in the air guide fin 7, the side wall 9 blocks the gas, so that the gas is discharged upward from the plurality of air outlet holes 10, and the Bernoulli adsorption disc is close to the object in the gas flow process, a negative pressure is generated between the bottom of the adsorption disc and the object, the object is adsorbed through the through holes which are uniformly distributed on the hole plate 8, and the adsorption and grabbing of the object are realized.

[0037] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and improvement concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A Bernoulli chuck comprising an upper cover (1), characterized in that: The top end of the upper cover (1) is fixedly connected with a side air inlet nozzle (2), the upper cover (1) is fixedly connected with a core body (3) inside, an air inlet cavity (4) is arranged between the core body (3) and the upper cover (1), the air inlet cavity (4) is in communication with the side air inlet nozzle (2), a plurality of air outlet slots (5) are formed in the core body (3) and in communication with the air inlet cavity (4), the bottom end of the upper cover (1) is provided with a wind guide cavity (6) in communication with the plurality of air outlet slots (5) around the core body (3), the bottom end of the upper cover (1) is fixedly connected with a wind guide tab (7) corresponding to the wind guide cavity (6), the bottom end of the wind guide tab (7) is fixedly connected with a perforated plate (8) corresponding to the wind guide tab (7), the bottom end of the upper cover (1) is fixedly connected with a side wall (9), and the wind guide tab (7) and the perforated plate (8) are located in the side wall (9), the top end of the upper cover (1) is provided with a plurality of air outlet holes (10) corresponding to the wind guide tab (7).

2. A Bernoulli chuck as claimed in claim 1, characterized in that: The top end of the upper cover (1) is provided with a plurality of screws (11), and the plurality of screws (11) are all threaded into the air outlet slots (5) through the upper cover (1).

3. A Bernoulli chuck as claimed in claim 2, characterized in that: The top end of the core body (3) is fixedly connected with a sealing strip (12) in contact with the top wall of the upper cover (1).

4. A Bernoulli chuck as claimed in claim 3, characterized in that: The top end of the upper cover (1) is provided with two connecting holes (13) symmetrically distributed.

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