Fry catching equipment

Abstract

The utility model relates to the technical field of aquaculture net cages, in particular to fry fishing equipment which comprises a supporting part and a net bag fixedly connected with the bottom of the supporting part, an operating rod is fixedly connected to one side of the supporting part, a through hole matched with an opening of the net bag is formed in the middle point of the supporting part, and the operating rod is fixedly connected with the operating rod. A closing assembly is arranged at the top of the supporting part and located at the through hole; wherein a traction assembly is arranged on the periphery of the operating rod, the traction assembly is used for driving the closing assembly to close the through hole, the sliding plate is pulled through a traction piece so as to control the pair of closing plates to be opened and closed, the through hole can be opened and closed by opening and closing the closing plates, and fish fries can be conveniently fished; after fishing, the through hole is closed by the closing plate to prevent the fries in the net bag from jumping out, and when the closing plate is operated, the operating rod can be supported by two hands at the same time, so that the situation that the operating rod slips out of the hand due to the fact that the wrist for operation is inconvenient or cannot support the operating rod is avoided.

Description

Technical Field

[0001] This utility model relates to the field of fish fry farming, and in particular to a fish fry harvesting device. Background Technology

[0002] Fish fry, or young fish, are the foundation of the aquaculture industry chain. The incubation period refers to the state of fish just after hatching from eggs. At this time, the fish fry are extremely small and very sensitive to the external environment. As they grow, the fish fry enter the juvenile stage, at which time they begin to have a certain ability to feed independently. When the fish fry grow to a certain size and have a strong survival ability, they are usually classified as seedlings and are suitable for large-scale farming.

[0003] Fish fry harvesting is used for scientific research, such as in ecology, genetics, and behavior, helping to understand the living habits and reproductive patterns of fish. For example, Chinese Patent Publication No. CN221241359U discloses a fish fry screening and harvesting device, including a mounting ring, a mounting groove, arc-shaped baffles, a rotating ring, an annular rotating block, a linkage structure, an operating rod, a knob, and a positioning structure. The mounting ring has a mounting groove on its lower side, and several evenly distributed arc-shaped baffles are arranged inside the mounting groove. A rotating ring is located on the lower outer side of the mounting ring, and an annular rotating block is located on the upper side of the rotating ring. A linkage structure is provided between the annular rotating block and the arc-shaped baffles. An operating rod is located on the rear outer side of the mounting ring, and a knob is located on the rear outer side of the operating rod. A positioning structure is provided between the knob and the operating rod. The advantage of this invention compared to existing technologies is that it facilitates the screening and harvesting of tilapia fry.

[0004] In practice, multiple arc-shaped baffles are closed by rotating the knob at the end of the control lever to prevent the fish fry from falling out of the net. However, when operating the arc-shaped baffles, one hand needs to support the control lever while the other hand rotates the knob. This makes it inconvenient to support the control lever. The movement of the fish fry inside the net may also cause the control lever to swing, which could lead to the fish fry slipping out of your hand. When operating the knob, the stability is poor because you cannot support the control lever with both hands. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in the existing technology, when operating the knob, it is not possible to support the operating lever with both hands, which easily leads to the operating lever slipping out of one's hands. Therefore, this invention proposes a fish fry catching device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a fish fry catching device, including a support part and a net bag fixedly connected to its bottom, an operating rod fixedly connected to one side of the support part, a through hole adapted to the opening of the net bag located at the midpoint of the support part, and a closing component located at the through hole on the top of the support part;

[0008] A traction component is provided around the operating lever, which is used to drive the closing component to close the through hole.

[0009] Furthermore, the closure assembly includes a pair of identical closure plates, which are semi-circular in shape and hinged to each other via a connecting rod. The connecting rod is rotatably connected to the top of the support via a fixed seat.

[0010] Furthermore, a slide block is fixedly connected to the side of the support portion via an extension, a slide plate is slidably connected inside the slide block, a slide rod is provided on the side of the slide plate, the slide rod is slidably connected to the slide block, and a spring is sleeved on its periphery via a baffle.

[0011] Furthermore, the hinged end of one of the closed plates is fixedly connected to the connecting rod, and a first guide portion is eccentrically fixed to the end of the connecting rod; the side of the other closed plate is provided with an extension portion around the connecting rod, and a second guide portion is eccentrically fixed to the end of the extension portion.

[0012] Furthermore, the side of the slide plate is provided with a clearance groove, and a pair of sliding grooves are symmetrically provided on both sides of the clearance groove. The connecting rod is provided in the clearance groove, and the first guide part and the second guide part are arranged opposite to each other and are slidably connected in the pair of sliding grooves respectively.

[0013] Furthermore, the traction assembly includes a handle seat sleeved around the operating rod, a handle rotatably connected to the handle seat, and a traction member fixedly connected between the handle and the slide rod.

[0014] The fish fry catching device proposed in this utility model has the following advantages: This utility model allows for the squeezing of a handle to pull a traction component, which in turn pulls a sliding plate to control the opening and closing of a pair of closing plates. The opening and closing of the closing plates allows for the opening and closing of the through-hole, facilitating the catching of fish fry. Furthermore, after catching the fish fry, the closing plates close the through-hole to prevent the fry from escaping from the net. Additionally, when operating the closing plates, both hands can support the operating rod, avoiding the situation where the operating rod slips out of the hand due to wrist inconvenience or inability to support it. The device has a simple structure and strong practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the closing plate of this utility model;

[0017] Figure 3 for Figure 2 A magnified structural diagram of area A;

[0018] Figure 4 This is an enlarged view of the structure of the closure component of this utility model;

[0019] Figure 5 This is an enlarged view of the traction component structure of this utility model.

[0020] In the diagram: 1. Support part; 2. Net bag; 3. Operating rod; 4. Through hole; 5. Closing assembly; 51. Closing plate; 52. Connecting rod; 521. First guide part; 53. Slide seat; 54. Slide plate; 541. Clearance groove; 542. Slide groove; 55. Baffle plate; 56. Spring; 57. Slide rod; 58. Extension part; 581. Second guide part; 6. Traction assembly; 61. Handle seat; 62. Handle; 63. Traction component. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 A fish fry catching device includes a support part 1 and a net bag 2 fixedly connected to its bottom. An operating rod 3 is fixedly connected to one side of the support part 1. A through hole 4 adapted to the opening of the net bag 2 is provided at the midpoint of the support part 1. A closing component 5 is provided at the top of the support part 1 at the through hole 4.

[0023] A traction component 6 is provided around the operating lever 3, and the traction component 6 is used to drive the closing component 5 to close the through hole 4.

[0024] Furthermore, the closing assembly 5 includes a pair of identical closing plates 51, which are semi-circular in shape and hinged to each other by a connecting rod 52. The connecting rod 52 is rotatably connected to the top of the support part 1 by a fixed seat.

[0025] Specifically, the support part 1 has a ring structure, and a pair of closing plates 51 are arranged opposite to each other. When they are closed, they form a circular structure that matches the support part 1. By closing the through hole 4, the fish fry in the net bag 2 are prevented from escaping.

[0026] Furthermore, the side of the support part 1 is fixedly connected to a slide block 53 via an extension portion, and a slide plate 54 is slidably connected inside the slide block 53. The side of the slide plate 54 is provided with a slide rod 57, which is slidably connected to the slide block 53, and a spring 56 is sleeved on its periphery via a baffle 55.

[0027] More specifically, one of the closed plates 51 has a hinged end that is fixedly connected to the connecting rod 52, and a first guide portion 521 is eccentrically fixed to the end of the connecting rod 52. The other closed plate 51 has an extension portion 58 on its side around the connecting rod 52, and a second guide portion 581 is eccentrically fixed to the end of the extension portion 58.

[0028] In general, the slide plate 54 has a clearance groove 541 on its side and a pair of sliding grooves 542 symmetrically arranged on both sides of the clearance groove 541. The connecting rod 52 is disposed in the clearance groove 541. The first guide part 521 and the second guide part 581 are disposed opposite to each other and are slidably connected in the pair of sliding grooves 542 respectively.

[0029] It is worth mentioning that the two ends of the spring 56 are fixedly connected to the inner side surfaces of the baffle 55 and the slide block 53, respectively;

[0030] In specific operation, the traction member 63 pulls the slide bar 57 and drives the slide plate 54 to move through the slide bar 57. The slide plate 54 avoids the connecting rod 52 through the clearance groove 541. When the slide plate 54 moves, the first guide part 521 and the second guide part 581 are driven to rotate half a turn through the slide groove 542. Since the pair of guide parts are arranged opposite to each other, they rotate away from each other when driven. Then, the pair of closed plates 51 are driven to rotate, and the fish fry can be discharged from the through hole 4.

[0031] The slide 53 has a U-shaped structure to avoid jamming with the connecting rod 52 and the pair of guides mentioned above, and the slide 53 is fixedly connected to the extension of the side of the support 1 by the locking screw at the bottom.

[0032] Finally, the traction assembly 6 includes a handle seat 61 sleeved around the operating rod 3, a handle 62 rotatably connected to the handle seat 61, and a traction member 63 fixedly connected between the handle 62 and the slide rod 57.

[0033] It should be added that the structure of the handle 62 cooperating with the handle seat 61 to drive the extension and retraction of the traction member 63 can be referred to in the prior art bicycle handbrake structure. Of course, the traction member 63 can be understood as a brake rope, and several fixing rings are provided along the axis at the bottom of the operating lever 3. The traction member 63 is located in the traction rings to prevent it from swinging randomly.

[0034] When the traction member 63 is released, the slide bar 57 drives the slide plate 54 to reset under the action of the spring 56, and a pair of closing plates 51 close. Of course, several slide bars 57 and springs 56 can be set according to actual needs to enhance the firmness of the closing of a pair of closing plates 51. The slide bars 57 can move synchronously through the connecting plate, and the connecting plate is pulled by the traction member 63.

[0035] Furthermore, under the action of at least one spring 56, the traction member 63 is normally in a taut state with the handle 62 and the slide bar 57 to prevent the slide plate 54 from being unable to move due to looseness when the handle 62 pulls the traction member 63.

[0036] Working method: During operation, the slide plate 54 is supported by at least one slide rod 57 and spring 56, so that the slide plate 54 abuts against and limits a pair of closing plates 51, and then the pair of closing plates 51 close the through hole 4, which can be used to prevent the fish fry in the net bag 2 from jumping out.

[0037] When fish fry need to be discharged, press the handle 62 to make the handle 62 and the handle seat 61 rotate. When rotating, the traction member 63 is pulled to drive the sliding rod 57, which drives the slide plate 54 to move. The slide plate 54 avoids the connecting rod 52 through the clearance groove 541. When the slide plate 54 moves, the first guide part 521 and the second guide part 581 are driven to rotate half a turn through the sliding groove 542. Then, a pair of closed plates 51 are driven to rotate, and the fish fry can be discharged from the through hole 4.

[0038] Finally, release handle 62, and slide bar 57, supported by spring 56, drives slide plate 54 to reset, and a pair of closing plates 51 close through hole 4.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fish fry catching device, comprising a support (1) and a net (2) fixedly connected to its bottom, characterized in that: An operating rod (3) is fixedly connected to one side of the support part (1), and a through hole (4) adapted to the opening of the net bag (2) is provided at the midpoint of the support part (1). A closing component (5) is provided at the top of the support part (1) at the through hole (4). A traction component (6) is provided around the operating lever (3), and the traction component (6) is used to drive the closing component (5) to close the through hole (4).

2. The fish fry harvesting equipment according to claim 1, characterized in that: The closing assembly (5) includes a pair of identical closing plates (51), which are semi-circular in shape and hinged to each other by a connecting rod (52). The connecting rod (52) is rotatably connected to the top of the support (1) by a fixed seat.

3. The fish fry harvesting equipment according to claim 2, characterized in that: The side of the support (1) is fixedly connected to a slide (53) via an extension. A slide plate (54) is slidably connected inside the slide (53). A slide rod (57) is provided on the side of the slide plate (54). The slide rod (57) is slidably connected to the slide (53), and a spring (56) is sleeved on its periphery via a baffle (55).

4. The fish fry harvesting equipment according to claim 3, characterized in that: One of the closed plates (51) has its hinged end fixedly connected to the connecting rod (52), and a first guide portion (521) is eccentrically fixed to the end of the connecting rod (52). The other closed plate (51) has an extension portion (58) on its side around the connecting rod (52), and a second guide portion (581) is eccentrically fixed to the end of the extension portion (58).

5. The fish fry harvesting equipment according to claim 4, characterized in that: The slide plate (54) has a clearance groove (541) on its side, and a pair of sliding grooves (542) are symmetrically provided on both sides of the clearance groove (541). The connecting rod (52) is located in the clearance groove (541). The first guide part (521) and the second guide part (581) are arranged opposite to each other and are slidably connected in the pair of sliding grooves (542).

6. The fish fry harvesting equipment according to claim 3, characterized in that: The traction assembly (6) includes a handle seat (61) sleeved around the operating rod (3), a handle (62) is rotatably connected to the handle seat (61), and a traction member (63) is fixedly connected between the handle (62) and the slide rod (57).

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