Variable bait dispenser with angle correlation

By designing a variable bait delivery device with associated angles, and utilizing a drive motor and curved surface to achieve piston rotation and propulsion, the problem of large size and fixed delivery of biomimetic fish devices was solved, achieving precise and flexible bait delivery, and reducing cost and structural complexity.

CN118415119BActive Publication Date: 2026-04-21SHENYANG AEROSPACE XINGUANG GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENYANG AEROSPACE XINGUANG GRP
Filing Date
2024-03-29
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In existing technologies, the bait delivery devices for bionic fish are bulky and fixed, making it impossible to accurately deliver bait at different depths and positions while the bionic fish swims in sync.

Method used

A variable bait delivery device with a correlation angle was designed. It uses a drive motor to drive a one-way valve assembly, and the piston is rotated and propelled by a curved surface. Combined with a guide wheel and a pin shaft, it can achieve precise bait delivery.

Benefits of technology

It enables flexible deployment in space and time, meets the requirements for biomimetic fish bait deployment in specific environments, has a simple structure, low cost, and adapts to the compact structure requirements of biomimetic fish.

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Abstract

This invention discloses a variable-angle bait dispensing device, comprising a waterproof high-torque motor, a base, a one-way valve assembly, a fixed seat, an adapter sleeve, a guide device, a locking plate, and a locking rod. The one-way valve assembly includes a one-way valve body, a piston, a guide wheel, and a pin, primarily used for storing and dispensing bait. The waterproof high-torque motor provides the power for system operation. The base primarily provides the required profile to achieve the geometric relationship between the motor rotation angle and the piston ejection distance. The one-way valve assembly is connected to the motor and the base via the fixed seat and the adapter sleeve. The forward rotation of the motor causes the one-way valve assembly to rotate clockwise around the motor shaft, which in turn causes the piston to rotate clockwise around the motor shaft. The guide wheel moves along the base profile and pushes the piston and the one-way valve body to generate relative motion. This allows the one-way valve assembly to dispense a fixed amount of bait as the motor rotates to different positions, thus achieving variable-angle bait dispensing throughout the entire stroke.
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Description

Technical Field

[0001] This invention relates to the field of underwater equipment technology, and in particular to a variable bait delivery device with a correlated angle. Background Technology

[0002] Currently, for specific application environments, bionic fish are required to actively and accurately deliver bait to attract specific fish groups. At present, the bait delivery method mostly uses fixed-point equipment. This type of delivery mechanism is bulky and delivers bait in a fixed location, unable to actively deliver bait at different depths and positions while swimming synchronously with the bionic fish.

[0003] Currently, research on solving the above problems is still being optimized both domestically and internationally. Among them, the patent application "A bait dispensing mechanism" (patent number 2020114002116) discloses a bait dispensing mechanism in which a mixing cylinder is fixed on the discharge hopper, and a bait inlet is opened on the mixing cylinder to connect the lower end of the discharge hopper and the mixing cylinder. The bait inlet is rotatably connected to the discharge wheel, and a conical plug is fixedly installed at the end of the guide rod facing the piston. A compression spring is connected between the plug and the guide rod, and a spray hole adapted to the plug is opened on the piston. Summary of the Invention

[0004] The technical problem solved by the present invention is to provide a variable bait delivery device that can accurately deliver bait at a related angle.

[0005] The technical solution adopted in this invention is a variable bait delivery device with a correlation angle, including a drive motor, a base, an adapter sleeve, a one-way valve assembly, and a working housing. The working housing has a working surface machined on it, which is curved. The drive motor is fixedly connected to the base. The one-way valve assembly includes a valve body and a piston. The valve body and the adapter sleeve are fixedly connected. The adapter sleeve is driven by the motor to rotate around the rotation center. During the rotation of the one-way valve, the piston end touches the working surface and moves along the working surface. The working surface includes an opening and closing section and a pushing section from front to back. The radius of curvature of the opening and closing section is equal to the distance from the rotation center to the piston rod end, and the center of curvature also coincides with the rotation center. During the rotation of the one-way valve assembly driven by the adapter sleeve, when the piston end slides through the opening and closing section, the piston does not move relative to the valve body, and the opening of the valve body is exposed. When the piston end slides through the pushing section, the piston rod end is pressed by the working surface and moves towards the front end along the valve body, pushing out the bait.

[0006] It also includes a fixing seat and a guide device, which are connected to the adapter sleeve.

[0007] A guide wheel is installed at the end of the piston rod, and the guide wheel rolls on the working surface.

[0008] The piston rod also includes a pin at the end, on which a guide wheel is mounted, with the end of the pin facing the rear of the working surface.

[0009] The base is fixed to the bionic fish body.

[0010] The one-way valve assembly is connected to the fixed base via a locking plate and a locking rod.

[0011] The working housing and base are a single integrated structure.

[0012] The working surface is equipped with a protective edge.

[0013] The beneficial effects of this invention are that it allows for arbitrary design of the amount of bait to be distributed and flexible distribution in terms of space and time, meeting the bait distribution requirements of bionic fish in specific environments, which is of great significance to the technological development of underwater bionic fish. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the initial state of a check valve.

[0015] Figure 2 This is a diagram showing the state of the one-way valve assembly after it has rotated.

[0016] Figure 3 This is a schematic diagram of a one-way valve assembly.

[0017] The markings in the diagram are: 1-High torque motor, 2-Base, 21-Guard railing, 3-One-way valve assembly, 4-Locking rod, 5-Locking plate, 6-Fixing seat, 7-Guide device, 8-Adapter sleeve, 31-One-way valve body, 32-Piston, 34-Guide wheel, 33-Pin shaft. Detailed Implementation

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] The variable bait delivery device with associated angle of this application includes a waterproof high torque motor 1, a base 2, a one-way valve assembly 3, a fixed seat 6, an adapter sleeve 8, a guide device 7, a locking plate 5, and a locking rod 4.

[0020] The one-way valve assembly 3 includes: a one-way valve body, a piston 32, a guide wheel 34, and a pin 33, mainly used for storing and distributing bait. A waterproof, high-torque motor 1 provides power for system operation. The base 2 supports the various components and provides the necessary working surface, which is curved, to achieve the geometric relationship between the motor rotation angle and the piston 32's extension distance.

[0021] like Figure 1 , Figure 2 As shown, the drive motor is fixed to the base 2. The locking rod 4 and locking plate 5 are made of corrosion-resistant material to meet the requirements of locking the fixing seat and locking plate, thereby firmly fixing the one-way valve assembly and the fixing seat. The adapter sleeve 8 is made of corrosion-resistant material and has reasonable interface features to meet the strength requirements of connecting the fixing seat and the motor.

[0022] like Figure 3 As shown, the guide wheel 34 is fixedly connected to the piston 32 via the pin 33 and then installed into the one-way valve body 31 to form the one-way valve assembly 3. The one-way valve assembly 3 is connected to the fixed seat 6, which is connected to the adapter sleeve 8, which is connected to the high-torque motor 1. Driven by the motor, the adapter sleeve 8 rotates clockwise along the rotation center of the motor drive flange, causing the one-way valve assembly 3 to rotate clockwise around the rotation center synchronously. Simultaneously, the piston 32 also rotates clockwise around the rotation center. The guide wheel 34 at the end of the piston 32 moves along the working surface and is gradually subjected to a pushing force, causing the piston 32 and the one-way valve body to move relative to each other, reducing the internal space of the one-way valve body and pushing out the bait. As the motor rotates to different positions, the one-way valve assembly 3 pushes out a fixed amount of bait, thereby realizing variable bait delivery throughout the entire stroke.

[0023] The guide device 7 restricts the forward and backward movement of the one-way valve assembly 3 and the rotational movement of the piston 32.

[0024] When in use, the bait is first loaded into the one-way valve body and follows the bionic fish swimming. The waterproof high-torque motor 1 rotates forward, and through the adapter sleeve 8, it drives the fixed seat, guide device 7, locking plate 5, locking rod 4 and one-way valve assembly 3 to rotate counterclockwise. The guide wheel 34 at the end of the piston 32 moves along the working surface of the base 2. First, the valve body opening opens. As the piston 32 moves upward relative to the one-way valve body, the bait is continuously pushed out.

[0025] The working surface consists of an opening / closing section and a pushing section from front to back. The radius of curvature of the opening / closing section is equal to the distance from the center of rotation to the end of the piston rod, and the center of curvature coincides with the center of rotation. During the rotation of the one-way valve assembly 3 driven by the adapter sleeve 8, as the piston 32 slides through the opening / closing section, the piston 32 does not move relative to the valve body; it only exposes the opening at the front end of the valve body, thus opening the valve. The piston 32 continues to slide backward. When it slides into the pushing section, because the radius of curvature and the center of curvature here do not completely coincide with the circle centered at the center of rotation and with the distance from the center of rotation to the pulley as the radius, the piston 32 is pushed forward relative to the valve body. With continuous pushing, the bait is pushed out and discharged.

[0026] The curvature and center of curvature of the propulsion section can be continuously changing. Therefore, for different areas of the surface, the piston 32 can have varying strokes when the electrode rotates through the same angle. The greater the stroke of the piston 32 at the same rotation angle, the greater the amount of bait discharged. Therefore, different designs can be made for the working surface on the base. The opening and closing sections at the front have a consistent structure, while the propulsion section at the rear can be designed with different curves according to actual needs. This allows for a single structural design suitable for multiple applications. The working surface can be directly machined onto the base, forming an integral structure, or it can be machined as a separate working shell and fixed to the base 2. When changing the application scenario, only the working shell needs to be replaced.

[0027] The piston pin 33 at the end of the piston is not coaxially mounted with the piston 32; the end of the pin 33 is inclined towards the end of the working surface. Because the piston 32 typically has an annular end face, it is highly susceptible to jamming when encountering the curved surface of the thrust section with its constantly changing curvature. Therefore, the inclined pin 33 and guide wheel 34 effectively prevent the piston 32 from jamming. To prevent the piston end from sliding along the working surface, a protective railing 21 is provided on the side of the working surface, extending a certain distance above the working surface.

[0028] The present invention has a simple structure. The motor directly drives the drive shaft to move the one-way valve assembly. Only one drive motor is needed to realize the two functions of opening and closing the valve body and pushing. In contrast, traditional equipment requires two sets of drive control devices. This reduces the motion transmission mechanism, making the drive part of the feeding mechanism small in size and occupying less space. It also increases the bait space and can better adapt to the compact requirements of the biomimetic fish structure.

[0029] Costs were reduced by using a small number of parts to achieve the bait dispensing mechanism function, while fully considering structural manufacturability and assembly feasibility. This improved the manufacturability of the parts and significantly reduced assembly requirements, thereby increasing production efficiency and lowering process costs.

[0030] By using a curved surface and guide wheel, the rotary motion of the motor is converted into linear motion. The amount of bait to be dispensed at different positions can be flexibly designed through the surface design, which enhances the design flexibility of the entire bait mechanism and improves design efficiency.

Claims

1. A variable bait delivery device with a correlation angle, characterized in that: The device includes a drive motor, a base, an adapter sleeve, a one-way valve assembly, and a working housing. The working housing has a machined working surface, which is curved. The drive motor is fixedly connected to the base. The one-way valve assembly includes a valve body and a piston. The valve body and the adapter sleeve are fixedly connected. The adapter sleeve is driven by the motor to rotate around the rotation center. During the rotation of the one-way valve, the piston end touches the working surface and moves along the working surface. The working surface includes an opening / closing section and a pushing section from front to back. The radius of curvature of the opening / closing section is equal to the distance from the rotation center to the piston rod end, and the center of curvature also coincides with the rotation center. During the rotation of the one-way valve assembly driven by the adapter sleeve, when the piston end slides through the opening / closing section, the piston does not move relative to the valve body, and the opening of the valve body is exposed. When the piston end slides through the pushing section, the piston rod end is pressed by the working surface and moves towards the front end along the valve body, pushing out the bait. A guide wheel is installed at the end of the piston rod and rolls on the working surface.

2. The variable bait delivery device with associated angle as described in claim 1, characterized in that: It also includes a fixed base and a guide device, which are connected to the adapter sleeve.

3. The variable bait delivery device with associated angle as described in claim 1, characterized in that: The piston rod also includes a pin at its end, and a guide wheel is mounted on the pin, with the end of the pin facing the rear of the working surface.

4. The variable bait delivery device with associated angle as described in claim 1, characterized in that: The base is fixed to the bionic fish body.

5. The variable bait delivery device with associated angle as described in claim 1, characterized in that: The one-way valve assembly is connected to the fixed base via a locking plate and a locking rod.

6. The variable bait delivery device with associated angle as described in claim 1, characterized in that: The working housing and base are an integral structure.

7. The variable bait delivery device with associated angle as described in claim 1, characterized in that: The working surface is provided with a protective edge on its side.

Citation Information

Patent Citations

  • Free moving feeding bionic turtle

    CN114747525A

  • Fish feed feeding device for ecological aquaculture

    CN215123341U