Sucking disc device based on bionic fish adsorption principle

Abstract

The invention discloses a bionic # imgabs0 # fish adsorption principle sucker device, and relates to the technical field of sucker devices, the bionic # imgabs0 # fish adsorption principle sucker device comprises a sucker main body, the middle of the sucker main body is provided with an air exhaust hole penetrating through the upper and lower surfaces, the air exhaust hole is provided with a one-way valve close to the upper end, and an adsorption area is defined between the lower end of the air exhaust hole and the lower edge of the sucker main body; and the plurality of bionic dorsal fins are rotatably arranged in the adsorption area and are distributed in an array manner. The bionic dorsal fin can adaptively rotate according to the shape of the adsorption surface, so that the suction cup body is in full contact with the adsorption surface, the adsorption force and friction force between the suction cup body and the adsorption surface are increased, and the suction cup body is prevented from falling off. By moving a plurality of fan-shaped blades in the iris mechanism and changing the hole diameter of the adjusting hole, the suction rate is changed, the suction air pressure of the suction cup body is accurately controlled, the preset suction force is achieved between the suction cup body and the suction surface, and the suction cup can be applied to working scenes with the accurate requirement for the suction force.

Description

Technical Field

[0001] The present invention relates to the technical field of suction cup devices, in particular to a suction cup device based on the adsorption principle of a bionic fish. Background Art

[0002] Existing suction cup devices typically rely on negative pressure to create a sealed contact with a smooth surface. This leads to problems such as unstable suction, limited applicability, insufficient load-bearing capacity, and poor durability. For example, suction force is easily affected by factors such as surface smoothness, dust, and oil; it struggles to effectively adhere to rough or irregular surfaces; it has a low load-bearing capacity and is prone to failure in high or low temperature environments.

[0003] In view of this, how to provide a suction cup that can improve adsorption force, applicability and load-bearing capacity is a problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0004] The purpose of the present invention is to provide a suction cup device based on the bionic fish adsorption principle to solve the problems existing in the prior art.

[0005] To achieve the above object, the present invention provides a suction cup device based on the bionic fish adsorption principle, comprising:

[0006] The suction cup body has an air extraction hole provided in the middle thereof through the upper and lower surfaces, a one-way valve is provided near the upper end of the air extraction hole, and an adsorption area is defined between the lower end of the air extraction hole and the lower edge of the suction cup body;

[0007] Multiple bionic dorsal fins can be rotatably arranged in the adsorption area and distributed in an array.

[0008] Furthermore, the bionic dorsal fin is a thorn structure, and the bionic dorsal fin is tilted relative to the adsorption area.

[0009] Furthermore, the width of the bionic dorsal fin is 270±10 μm, the height is 500±50 μm, the spacing between adjacent bionic dorsal fins is 250±20 μm, and the maximum inclination angle of the bionic dorsal fin relative to the adsorption area is 33.7±2°.

[0010] Furthermore, the bionic dorsal fin is made of a flexible material, the upper end of which is arranged in the adsorption area through a rotating shaft, and the lower end can be connected to the adsorption surface.

[0011] Furthermore, it also includes:

[0012] The iris mechanism is arranged at the lower end of the air pumping hole. The iris mechanism is in transmission connection with the driving device. The driving device can drive the iris mechanism to adjust the aperture of the lower end of the air pumping hole.

[0013] Furthermore, the iris mechanism includes:

[0014] A mounting plate is provided at the lower end of the air extraction hole, wherein a through hole is provided in the middle portion thereof through the upper and lower surfaces;

[0015] A plurality of arc-shaped grooves are evenly spaced on the mounting plate along the circumference of the through hole;

[0016] A plurality of fan-shaped blades are arranged in sequence along the circumference of the through hole and form an adjustment hole in the center of the through hole. A connecting rod is provided at the tail end of the fan-shaped blade. The connecting rod is slidably connected to the arc-shaped groove between a first position and a second position. When the connecting rod slides along the arc-shaped groove from the first position to the second position, the aperture of the adjustment hole increases. The driving device is used to drive the connecting rod to slide between the first position and the second position.

[0017] Furthermore, it also includes: an air pump, whose air pumping end is connected to the upper end of the air pumping hole, and is used to pump out the air between the adsorption area and the adsorption surface.

[0018] Furthermore, a flexible sealing ring is provided on the lower edge of the suction cup body.

[0019] Furthermore, it also includes:

[0020] a pressure sensor, disposed in the adsorption area and used to detect the air pressure between the adsorption area and the adsorption surface;

[0021] The controller is electrically connected to the pressure sensor and the driving device respectively. The pressure sensor uploads the detected air pressure to the controller, and the controller increases or decreases the aperture of the adjustment hole through the driving device.

[0022] The present invention discloses the following technical effects:

[0023] 1. The bionic dorsal fin can adaptively rotate according to the shape of the adsorption surface, so that the suction cup body is in full contact with the adsorption surface, thereby increasing the adsorption force and friction between the suction cup body and the adsorption surface, and preventing the suction cup body from falling off.

[0024] 2. By moving the multiple fan-shaped blades in the iris mechanism, the aperture of the adjustment hole is changed, and then the suction volume is changed, the adsorption pressure of the suction cup body is precisely controlled, so that the preset adsorption force between the suction cup body and the adsorption surface is achieved. It can be applied to work scenarios with precise requirements on adsorption force. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the bottom of the suction cup body;

[0028] Figure 3 This is a front view diagram of the iris mechanism;

[0029] Figure 4 This is a schematic diagram of the back of the iris mechanism;

[0030] Among them, 1. Suction cup body; 101. Adsorption area; 2. Bionic dorsal fin; 3. Iris mechanism; 301. Mounting plate; 3011. Arc groove; 3012. Through hole; 302. Fan-shaped blade; 4. Adjustment hole; 5. Connecting rod; 6. Air pump; 7. Flexible sealing ring. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] The present invention provides a suction cup device based on the bionic fish adsorption principle, comprising:

[0034] The suction cup body 1 has an air extraction hole provided through the upper and lower surfaces thereof, a one-way valve provided near the upper end of the air extraction hole, and an adsorption area 101 is defined between the lower end of the air extraction hole and the lower edge of the suction cup body 1;

[0035] The multiple bionic dorsal fins 2 are rotatably disposed in the adsorption area 101 and distributed in an array.

[0036] In this embodiment, the bionic dorsal fin 2 is a thorn structure and is tilted relative to the adsorption area 101. The flexible sealing ring 7 and the bionic dorsal fin 2 are both made of flexible materials, which can enhance the sealing performance and adsorption effect.

[0037] In this embodiment, the width of the bionic dorsal fin 2 is 270±10 μm, the height is 500±50 μm, the spacing between adjacent bionic dorsal fins 2 is 250±20 μm, and the maximum inclination angle of the bionic dorsal fin 2 relative to the adsorption area 101 is 33.7±2°.

[0038] In this embodiment, the upper end of the bionic dorsal fin 2 is disposed in the adsorption area 101 via a rotating shaft, and the lower end can be connected to the adsorption surface.

[0039] In some other embodiments, an elastic structure such as a reset spring is provided between the bionic dorsal fin 2 and the adsorption area 101 to provide a reset elastic force after the bionic dorsal fin 2 contacts the adsorption surface, thereby making the bionic dorsal fin 2 fully contact the adsorption surface and further improving the friction and adsorption force.

[0040] In some other embodiments, the soft pneumatic actuator drives the spine structure included in the bionic dorsal fin 2 to tilt by air pressure control (0-160kPa), and the tilt angle θ satisfies a linear relationship with the air pressure P (θ=0.1P, P is in kPa).

[0041] In this embodiment, it also includes:

[0042] The iris mechanism 3 is arranged at the lower end of the air pumping hole. The iris mechanism 3 is in transmission connection with the driving device. The driving device can drive the iris mechanism 3 to adjust the aperture of the lower end of the air pumping hole.

[0043] In this embodiment, the iris mechanism 3 includes:

[0044] The mounting plate 301 is provided at the lower end of the air extraction hole, and a through hole 3012 is provided in the middle thereof through the upper and lower surfaces;

[0045] A plurality of arc-shaped grooves 3011 are evenly spaced along the circumference of the through hole 3012 on the mounting plate 301;

[0046] A plurality of fan-shaped blades 302 are arranged in sequence along the circumference of the through hole 3012 and form an adjustment hole 4 in the center of the through hole 3012. A connecting rod 5 is provided at the tail end of the fan-shaped blade 302. The connecting rod 5 is slidably connected to the arc groove 3011 between a first position and a second position. When the connecting rod 5 slides along the arc groove 3011 from the first position to the second position, the aperture of the adjustment hole 4 increases, and the driving device is used to drive the connecting rod 5 to slide between the first position and the second position.

[0047] In this embodiment, the driving device adopts a micro motor, which is arranged in the suction cup body 1. A space is reserved in the suction cup body 1 for the micro motor to drive the connecting rod 5 to slide between the first position and the second position.

[0048] This embodiment further includes an air pump 6, which comprises a propeller, a duct, and a propeller. Its air extraction end is connected to the upper end of the air extraction hole and is used to extract air between the adsorption area 101 and the adsorption surface. The propeller is provided with a duct that matches the air extraction hole, and the propeller of the propeller is disposed within the duct.

[0049] In this embodiment, a flexible sealing ring 7 is provided on the lower edge of the suction cup body 1. This wavy structure allows it to adhere to both rough and flexible surfaces. The bionic dorsal fin 2, with its spiny structure, can be tilted and embedded into the micropores of the suction surface. This mechanical interlocking mechanism enhances shear resistance and thus improves suction. Its suction mechanism mimics that of fish spines.

[0050] The suction cup body 1, flexible sealing ring 7, and bionic dorsal fin 2 can be manufactured in one piece using multi-material 3D printing technology. The suction cup body 1 is made of a medium-rigidity material (modulus approximately 300 MPa), and the sealing ring is made of silicone rubber (modulus approximately 1.1 MPa) with a thickness of 0.5-1 mm. The bionic dorsal fin 2 can be manufactured using existing specialized processing technologies such as laser processing to form a multi-directional, special-shaped mechanical structure.

[0051] In this embodiment, it also includes:

[0052] A pressure sensor is provided in the adsorption area 101 and is used to detect the air pressure between the adsorption area 101 and the adsorption surface;

[0053] The controller is electrically connected to the pressure sensor and the driving device respectively. The pressure sensor uploads the detected air pressure to the controller, and the controller increases or decreases the aperture of the adjustment hole 4 through the driving device.

[0054] The specific working process is as follows:

[0055] The suction cup body 1 is pressed downward, causing the flexible sealing ring 7 to contact the suction surface. The micromotor then adjusts the aperture of the adjustment hole 4, thereby varying the suction speed and volume. The suction pump 6 is activated to partially remove the air between the suction area 101 and the suction surface. Due to the one-way valve, no more air can enter the suction area 101. At this point, the suction pump 6 can be removed. The bionic dorsal fin 2 on the lower surface of the suction area 101 is in contact with the suction surface, adaptively rotating according to the shape of the suction surface, ensuring full contact between the bionic dorsal fin 2 and the suction surface, generating sufficient friction and suction force.

[0056] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, 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 therefore cannot be understood as a limitation on the present invention.

[0057] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A bionic The suction cup device based on the fish adsorption principle is characterized in that: include: The suction cup body (1) has an air extraction hole provided in its middle through the upper and lower surfaces, a one-way valve provided near the upper end of the air extraction hole, and an adsorption area (101) defined between the lower end of the air extraction hole and the lower edge of the suction cup body (1); A plurality of bionic dorsal fins (2) are rotatably arranged in the adsorption area (101) and distributed in an array.

2. A bionic device according to claim 1 The suction cup device based on the fish adsorption principle is characterized in that: The bionic dorsal fin (2) is a thorn structure, and the bionic dorsal fin (2) is arranged obliquely relative to the adsorption area (101).

3. A bionic device according to claim 2 The suction cup device based on the fish adsorption principle is characterized in that: The bionic dorsal fin (2) has a width of 270±10 μm and a height of 500±50 μm, a spacing between adjacent bionic dorsal fins (2) is 250±20 μm, and a maximum tilt angle of the bionic dorsal fin (2) relative to the adsorption area (101) is 33.7±2°.

4. A bionic device according to claim 2 The suction cup device based on the fish adsorption principle is characterized in that: The bionic dorsal fin (2) is made of a flexible material, the upper end of which is arranged in the adsorption area (101) via a rotating shaft, and the lower end of which can be connected to the adsorption surface.

5. A bionic device according to claim 1 The suction cup device based on the fish adsorption principle is characterized in that: Also includes: An iris mechanism (3) is arranged at the lower end of the air extraction hole. The iris mechanism (3) is in transmission connection with a driving device, and the driving device can drive the iris mechanism (3) to adjust the aperture of the lower end of the air extraction hole.

6. A bionic device according to claim 5 The suction cup device based on the fish adsorption principle is characterized in that: The iris mechanism (3) comprises: A mounting plate (301) is provided at the lower end of the air extraction hole, wherein a through hole (3012) is provided in the middle portion thereof through the upper and lower surfaces; A plurality of arc-shaped grooves (3011) are evenly spaced and arranged on the mounting plate (301) along the circumference of the through hole (3012); A plurality of fan-shaped blades (302) are sequentially arranged along the circumference of a through hole (3012) and surround an adjustment hole (4) at the center of the through hole (3012). A connecting rod (5) is provided at the tail end of each fan-shaped blade (302). The connecting rod (5) is slidably connected to the arc-shaped groove (3011) between a first position and a second position. When the connecting rod (5) slides along the arc-shaped groove (3011) from the first position to the second position, the aperture of the adjustment hole (4) increases. The driving device is used to drive the connecting rod (5) to slide between the first position and the second position.

7. A bionic device according to claim 6 The suction cup device based on the fish adsorption principle is characterized in that: Also includes: The suction pump (6) has a suction end connected to the upper end of the suction hole and is used to extract the air between the adsorption area (101) and the adsorption surface.

8. A bionic device according to claim 7 The suction cup device based on the fish adsorption principle is characterized in that: A flexible sealing ring (7) is provided on the lower edge of the suction cup body (1).

9. A bionic device according to claim 7 The suction cup device based on the fish adsorption principle is characterized in that: Also includes: a pressure sensor, disposed in the adsorption area (101) and used to detect the air pressure between the adsorption area (101) and the adsorption surface; The controller is electrically connected to the pressure sensor and the driving device respectively. The pressure sensor uploads the detected air pressure to the controller, and the controller increases or decreases the aperture of the regulating hole (4) through the driving device.

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