Handheld fry suction tool

Abstract

The present invention belongs to the technical field of animal experimental tools, and specifically relates to a handheld fry suction tool, comprising a controller and a suction device, wherein the controller comprises a first shell, a toggle portion slidably assembled on the first shell, the suction device comprises a second shell connected to the front end of the first shell, a suction nozzle arranged at the lower end of the second shell and connected to the second shell, a piston sealingly slidably connected to the second shell, and a first elastic member arranged in the second shell for pushing the piston downward, a linkage component is arranged between the toggle portion and the piston, and the toggle portion can control the piston to slide up and down relative to the second shell through the linkage component. The tool can replace tweezers to pick up and transfer fry. Compared with tweezers, the tool will not clamp the fry when transferring the fry, so the fry will not be injured. The transfer is safer, which is beneficial to the cultivation and research of experimental fish such as zebrafish.

Description

Technical Field

[0001] The invention belongs to the technical field of animal experiment tools, and in particular relates to a handheld fry suction tool. Background Art

[0002] Zebrafish is a common experimental animal, widely used in biomedical research, drug screening, and gene function research. In the process of zebrafish cultivation and research, it is often necessary to transfer individual fry, and corresponding tools are used to pick them up. The common method is to use a small scoop net to pick up the fish from the water, and then use tweezers to pick them up for transfer. However, the tweezers will apply pressure on both sides of the fry during the process of picking them up, which can easily injure the fry or even cause its death. Therefore, in response to the above problems, we proposed a handheld fry suction tool to solve the above problems. Summary of the invention

[0003] In order to overcome the problems existing in the related art, the present invention discloses a handheld fry suction tool.

[0004] To achieve the above object, a technical solution adopted by the present invention is:

[0005] A handheld fry suction tool comprises a controller and a suction device, wherein the controller comprises a first housing and a toggle portion slidably mounted on the first housing;

[0006] The suction device includes a second shell connected to the front end of the first shell, a suction nozzle provided at the lower end of the second shell and communicated with the second shell, a piston sealingly and slidably connected to the second shell, and a first elastic member provided in the second shell for pushing the piston downward;

[0007] A linkage assembly is provided between the toggle portion and the piston, and the toggle portion can control the piston to slide up and down relative to the second housing through the linkage assembly.

[0008] Furthermore, the shifting portion includes a slide plate slidably assembled in the first shell and a shifting block connected to the slide plate and penetrating upwardly through the first shell;

[0009] The linkage assembly includes an active member arranged on the controller and a driven member arranged on the suction device, wherein the driven member includes a vertical rod fixedly connected to the upper end of the piston and penetrating upwardly through the second housing, and a top body fixedly connected to the upper end of the vertical rod and extending into the first housing;

[0010] The active member comprises a slide bar fixedly connected to the front end of the slide plate, the upper end of the slide bar has a first step surface and a second step surface which are lower in front and higher in the back, and the first step surface and the second step surface are connected by a guide inclined surface which is inclined from the front to the back and from the bottom to the top;

[0011] When the piston abuts against the suction nozzle, the distance between the lower end surface of the top body and the upper end surface of the second shell is greater than the distance between the first step surface and the lower end surface of the slide rod.

[0012] Furthermore, the connection between the suction device and the controller is a detachable connection.

[0013] Furthermore, a slot for inserting the second shell is provided at the front side of the lower end of the first shell, and the second shell is inserted into the slot.

[0014] Furthermore, the controller also includes a second elastic member fixedly connected between the first shell and the toggle portion, and when the second elastic member is naturally stretched, the first step surface is located at the slot position.

[0015] Furthermore, a vertical rod accommodating groove for accommodating the vertical rod is provided in the middle of the front end of the sliding rod.

[0016] Furthermore, the side surface of the vertical rod has a plurality of evenly distributed meshing teeth, and the upper end of the second housing has a toothed sliding groove meshing with the meshing teeth;

[0017] A hinge groove is provided on the left wall of the vertical rod receiving groove below the second step surface, and a toothed plate facing the vertical rod receiving groove is rotatably connected to the upper part between the front and rear walls of the hinge groove through a rotating shaft, and the rotating shaft is equipped with a torsion spring for driving the toothed plate to rotate into the vertical rod receiving groove, and an assembly groove communicating with the hinge groove is provided on the rear end of the slide bar, and a limit plate for abutting against the right wall of the assembly groove to limit the turning angle of the toothed plate is provided on the left side of the toothed plate;

[0018] The slide plate is a hollow structure, and is provided with a wire passing groove communicated with the assembly groove. The shift block includes a sliding member slidably assembled in the slide plate and a shift rod fixedly connected to the upper end of the sliding member and passing through the slide plate upward. A guide ring corresponding to the position of the tooth plate is fixedly connected to the left wall of the assembly groove, and a pull wire is fixedly connected to the lower side of the left end of the sliding member, which passes through the guide ring and the wire passing groove in sequence and is fixed to the sliding member.

[0019] Furthermore, the connection between the vertical rod and the top body is a detachable connection.

[0020] Furthermore, the detachable connection between the vertical rod and the top body is a threaded connection.

[0021] Furthermore, the controller also includes a handle, which is arranged in a slide bar receiving groove for receiving the first shell, and the first shell is fixedly connected to the slide bar receiving groove.

[0022] The present invention discloses a handheld fry suction tool, which can replace tweezers to pick up and transfer fry. Compared with tweezers, the tool does not clamp the fry when transferring the fry, so the fry will not be injured. The tool has higher safety during transfer, which is beneficial to the cultivation and research of experimental fish such as zebrafish. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0025] Figure 2 It is a schematic cross-sectional structure diagram of an embodiment of the present invention;

[0026] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0027] Figure 4 for Figure 2 A schematic diagram of the structure enlarged at B in the middle;

[0028] Figure 5 It is a schematic diagram of a partial cross-sectional structure of an embodiment of the present invention;

[0029] Figure 6 for Figure 5 A schematic diagram of the structure enlarged at C in the middle;

[0030] Figure 7 A schematic diagram of the connection between the toggle portion and the slide rod in one embodiment of the present invention;

[0031] Figure 8 for Figure 7 A schematic diagram of the structure at D in the middle is enlarged;

[0032] Figure 9 for Figure 7 A schematic diagram of the structure enlarged at E in the middle;

[0033] Figure 10 It is a schematic diagram of a partial cross-sectional structure after the toggle portion and the slide rod are connected in one embodiment of the present invention;

[0034] Figure 11 for Figure 10 A schematic diagram of the structure enlarged at F in the middle;

[0035] Figure 12 Schematic diagram of the structure of the second shell in one embodiment of the present invention.

[0036] The meanings of the symbols in the accompanying drawings are:

[0037] Controller 1, first housing 11, slot 111, slider chute 112, toggle portion 12, slide plate 121, wire slot 1211, slider 122, sliding member 1221, toggle rod 1222, slide rod 13, first step surface 131, second step surface 132, guiding inclined surface 133, vertical rod receiving groove 135, second elastic member 14, handle 16, slide rod receiving groove 161, suction device 2, second housing 21, toothed chute 211, suction nozzle 22, piston 23, first elastic member 24, vertical rod 25, meshing teeth 251, top body 26, hinge groove 3, rotating shaft 31, toothed plate 32, torsion spring 33, assembly groove 34, guiding ring 341, limiting plate 35, wire rope 36. Specific embodiments

[0038] The present invention will be further described below with reference to the accompanying drawings.

[0039] Refer to Figure 1-12 As shown, the handheld juvenile fish suction tool of this embodiment includes a controller 1 and a suction device 2. By operating the controller 1, the suction device 2 can be controlled to suck juvenile fish.

[0040] In this embodiment, the controller 1 includes a first housing 11 that is horizontally arranged and generally in the shape of a cuboid. A toggle portion 12 is slidably assembled back and forth inside the first housing 11. The slide plate 121 of the toggle portion 12 is slidably assembled inside the first housing 11. The slider 122 of the toggle portion 12 is connected to the slide plate 121 and extends out of the first housing 11. The first housing 11 is provided with a slider chute 112 for the slider 122 to slide.

[0041] In this embodiment, the suction device 2 includes a second housing 21 connected to the front end of the first housing 11, a suction nozzle 22 provided at the lower end of the second housing 21 and communicating with the second housing 21, a piston 23 hermetically and slidably connected inside the second housing 21, and a first elastic member 24 provided inside the second housing 21 for pushing the piston 22 downward. The shape of the second housing 21 is cylindrical. The suction nozzle 22 is made of a flexible material, and the flexible material can be any one of silicone, rubber, etc. The first elastic member 24 is a helical spring.

[0042] In addition, a linkage assembly is provided between the toggle portion 12 and the piston 23. The linkage assembly includes an active member provided on the controller 1 and a driven member provided on the suction device 2. When the user toggles the toggle portion 12, the toggle portion 12 will control the piston 23 to slide up and down relative to the second housing 21 through the cooperation of the active member and the driven member, so as to change the space below the piston 23.

[0043] When transferring the fry of zebrafish, the fish is picked up from the water by a small scoop net, and then the suction nozzle 22 is used to fit the fry, and then the piston 23 is controlled to move upward by the toggle part 12, so that the space under the piston 23 is increased to form a negative pressure, thereby sucking up the fry, and then the tool can be used to transfer the fry of zebrafish. After the fry of zebrafish is transferred to the target position, the piston 23 is controlled to move downward by the toggle part 12, so that the space under the piston 23 is reduced to form a positive pressure, thereby putting the fry down, and thus the transfer of the fry of zebrafish is completed. In this way, the fry of zebrafish can be adsorbed and fixed on one side by the tool to avoid pinching the fry of zebrafish.

[0044] It is worth mentioning that the suction nozzle 22 is made of a flexible material that can fit well with the young fish. In addition, the flexible material has a good touch and can avoid extrusion injuries caused by hard contact.

[0045] In this embodiment, the follower includes a vertical rod 25 fixed to the upper end of the piston 23 and penetrating upward through the second housing 21, and a top body 26 fixed to the upper end of the vertical rod 25 and extending into the first housing 11. In addition, the active member includes a slide bar 13 fixed to the front end of the slide plate 121, and the upper end of the slide bar 13 has a first step surface 131 and a second step surface 132 that are lower in front and higher in the back. The first step surface 131 and the second step surface 132 are connected by a guide inclined surface 133 that is inclined from front to back and from bottom to top. In addition, when the piston 23 abuts against the suction nozzle 22, the distance between the lower end surface of the top body 26 and the upper end surface of the second housing 21 is greater than the distance between the first step surface 131 and the lower end surface of the slide bar 13.

[0046] In the initial state, the first step surface 131 is located at the lower side of the top body 26. When the shift block 122 is shifted forward relative to the first housing 11, the slide bar 13 is driven to slide forward through the slide plate 121. After the guide slope 133 abuts against the top body 26, the slide bar 13 that continues to slide forward will force the top body 26 to move upward through the guide slope 133. In this way, the top body 26 will overcome the elastic force of the first elastic member 24 through the vertical rod 25 and drive the piston 23 to move upward for absorption. After that, when the shift block 122 is shifted backward relative to the first housing 11, the guide slope 133 slides backward. In this way, the rebound of the first elastic member 24 will drive the piston 23 to slide downward for release.

[0047] It is worth mentioning that the connection between the vertical rod 25 and the top body 26 is a detachable connection. Specifically, the outer side of the upper end of the vertical rod 25 has an external thread, and the middle part of the top body 26 has a thread groove. The vertical rod 25 is threadedly connected to the thread groove through the external thread, thereby realizing a detachable connection. This arrangement facilitates the assembly of the various components of the absorber 2.

[0048] In addition, the controller 1 also includes a handle 16, which is arranged in a slide rod receiving groove 161 for receiving the first shell 11. The first shell 11 is fixed in the slide rod receiving groove 161. This arrangement makes it easy for the user to hold the controller 1 so as to facilitate the user to operate the tool.

[0049] To facilitate the separate cleaning of the suction device 2, in the present embodiment, the connection between the suction device 2 and the controller 1 is a detachable connection. Specifically, a slot 111 for inserting the second shell 21 is provided on the front side of the lower end of the first shell 11. The first shell 11 is inserted into the slot 111. The controller 1 also includes a second elastic member 14 fixedly connected between the first shell 11 and the toggle portion 12. The second elastic member 14 is a coil spring. When the second elastic member 14 is naturally stretched, the first step surface 131 is located at the slot 111.

[0050] When installing the suction device 2 and the controller 1, firstly, the shift block 122 is shifted backward relative to the first shell 11 to overcome the elastic force of the second elastic member 14, so that the first step surface 131 is away from the slot 111 to give way to the top body 26, and then the upper part of the second shell 21 is inserted into the slot 111, and then the shift block 122 is released, so that it slides forward under the elastic force of the second elastic member 14, so that the first step surface 131 slides forward to the position of the slot 111, that is, the lower side of the top body 26, at this time, the slot 111 will limit the lateral movement of the second shell 21 relative to the first shell 11, and the lower end surface of the top body 26 will cooperate with the first step surface 131 of the slide bar 13 to limit the second shell 21 from leaving the slot 111, so that the suction device 2 is assembled with the controller 1. Subsequently, the shifting part 12 is pushed forward to control the suction device 2 to suck.

[0051] When it is necessary to detach the suction device 2 from the controller 1, the shifting block 122 is shifted backward relative to the first shell 11 to overcome the elastic force of the second elastic member 14, so that the first step surface 131 is away from the slot 111, that is, the first step surface 131 is moved away from the lower side of the top body 26. In this way, the second shell 21 is freed from the restriction of the slot 111, and the suction device 2 can be directly separated from the controller 1.

[0052] It is worth mentioning that during the installation process, the nozzle 22 of the aspirator 2 can be placed downward on a plane, and then the hand-held controller 1 is used to control the slot 111 to sleeved on the second housing 21, so that the installation can be achieved with one hand. In addition, during the detachment process, the aspirator 2 can be placed under the controller 1. After the first step surface 131 is controlled to move away from the lower side of the top body 26, the aspirator 2 will automatically detach from the controller 1 under the action of gravity, so that the detachment can be achieved with one hand. The whole disassembly and assembly process is simple and convenient, without the need to use other tools and can be achieved with one hand. Such a setting is convenient for the separate maintenance of the aspirator 2. It is worth mentioning that multiple aspirators 2 with different specifications can be set, so that they can be replaced according to the requirements of the sucked target, so that various types of fish can be sucked, and even various items can be sucked. This design has a wide range of applications.

[0053] In actual use, when placing the juvenile fish on the experimental table, it is often necessary to place the juvenile fish at a required angle as required. Therefore, in order to enable this tool to adjust the angle when releasing the juvenile fish, the following settings are also made in this embodiment. Specifically, the side surface of the vertical rod 25 has a number of evenly distributed meshing teeth 251, and the upper end of the second housing 21 has a tooth-shaped chute 211 that meshes with the meshing teeth 251. In this way, when the vertical rod 25 rotates, the meshing teeth 251 cooperate with the tooth-shaped chute 211 to drive the second housing 21 and the nozzle 22 to rotate together.

[0054] In addition, an articulated groove 3 is opened at the lower part of the left wall of the vertical rod receiving groove 135 below the second step surface 132. The upper part between the front and rear walls of the articulated groove 3 is rotatably connected by a rotating shaft 31 to a toothed plate 32 facing the vertical rod receiving groove 135. The rotating shaft 31 is equipped with a torsion spring 33 for driving the toothed plate 32 to rotate into the vertical rod receiving groove 135. An assembly groove 34 communicating with the articulated groove 3 is opened at the rear end of the sliding rod 13, and a limiting plate 35 for abutting against the right wall of the assembly groove 34 to limit the flipping angle of the toothed plate 32 is provided on the left side of the toothed plate 32. In the natural state, the torsion spring 33 will drive the toothed plate 32 to flip towards the vertical rod receiving groove 135. When the limiting plate 35 abuts against the right wall of the assembly groove 34, the teeth of the toothed plate 32 will extend into the vertical rod receiving groove 135.

[0055] In addition, the sliding plate 121 is of a hollow structure. The sliding plate 121 is provided with a wire passing groove 1211 communicating with the assembly groove 34. The dial block 122 includes a sliding member 1221 slidably assembled left and right in the sliding plate 121 and a dial rod 1222 fixedly connected to the upper end of the sliding member 1221 and penetrating upward through the sliding plate 121. A guiding ring 341 corresponding to the position of the toothed plate 32 is fixedly connected to the left wall of the assembly groove 34. A wire 36 is fixedly connected to the lower left side of the sliding member 1221 and sequentially penetrates through the guiding ring 341 and the wire passing groove 1211 and is fixedly connected to the sliding member 1221.

[0056] Based on the above structure, when sucking fry, the user puts the suction nozzle 22 into contact with the fry, and then pushes the lever 1222 forward, so that the lever 1222 drives the sliding member 1221, the slide plate 121 and the slide bar 13 to slide forward, so that the guide inclined surface 133 abuts against the top body 26 to force the top body 26 to slide upward. After the top body 26 moves to the second step surface 132, the subsequent slide bar 13 continues to slide forward, and the tooth plate 32 will mesh with the meshing teeth 251, and will cooperate with the meshing teeth 251 to drive the vertical rod 25 to rotate, so that the suction nozzle can be driven. When the suction nozzle 22 rotates, the young fish adsorbed on the suction nozzle 22 will rotate together. After it rotates to the target angle, the lever 1222 is toggled to the right, so that it drives the sliding member 1221 to slide to the right to pull the rear end of the pull line 36. Under the guidance of the guide ring 341, the front end of the pull line 36 will pull the tooth plate 32 to flip into the assembly groove 34. After the tooth plate 32 is disengaged from the meshing teeth 251, the lever 1222 is toggled backward to let the sliding rod 13 slide backward to control the piston 23 to slide downward to release the young fish, so that the young fish is placed at the required angle. It is worth mentioning that the entire suction and angle adjustment process is achieved by controlling the toggle part 12 with one hand, which is convenient to use.

[0057] In summary, the present invention discloses a handheld fry suction tool, which can replace tweezers to pick up and transfer fry. Compared with tweezers, the tool will not clamp the fry when transferring the fry, so the fry will not be injured. The tool has higher safety during transfer, which is beneficial to the cultivation and research of experimental fish such as zebrafish.

[0058] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A hand-held tool for sucking fry, characterized in that: It includes a controller and a suction device. The controller includes a first housing and a toggle part slidably assembled back and forth on the first housing. The suction device includes a second housing connected to the front end of the first housing, a suction nozzle provided at the lower end of the second housing and communicating with the second housing, a piston sealingly and slidably connected in the second housing, and a first elastic member provided in the second housing for pushing the piston downward. A linkage assembly is provided between the toggle part and the piston, and the toggle part can control the up and down sliding of the piston relative to the second housing through the linkage assembly. The toggle part includes a slide plate slidably assembled in the first housing and a toggle block connected to the slide plate and penetrating upward through the first housing. The linkage assembly includes an active member provided on the controller and a driven member provided on the suction device. The driven member includes a vertical rod fixedly connected to the upper end of the piston and penetrating upward through the second housing, and a top body fixedly connected to the upper end of the vertical rod and extending into the first housing. The active member includes a slide rod fixedly connected to the front end of the slide plate. The upper end of the slide rod has a first step surface and a second step surface that are lower in the front and higher in the rear, and the first step surface and the second step surface are connected by a guiding inclined surface that slopes from bottom to top from front to back. When the piston abuts against the suction nozzle, the distance between the lower end surface of the top body and the upper end surface of the second housing is greater than the distance between the first step surface and the lower end surface of the slide rod. A vertical rod receiving groove for receiving the vertical rod is provided in the middle of the front end of the slide rod. The side surface of the vertical rod has a number of evenly distributed meshing teeth, and the upper end of the second housing has a toothed chute that meshes with the meshing teeth. An articulated groove is provided in the left wall of the vertical rod receiving groove below the second step surface. The upper part between the front and rear walls of the articulated groove is rotatably connected by a rotating shaft to a toothed plate facing the vertical rod receiving groove. The rotating shaft is equipped with a torsion spring for driving the toothed plate to rotate into the vertical rod receiving groove. An assembly groove communicating with the articulated groove is provided at the rear end of the slide rod, and a limiting plate for abutting against the right wall of the assembly groove to limit the flipping angle of the toothed plate is provided on the left side of the toothed plate. The slide plate is of a hollow structure. The slide plate is provided with a wire passing groove communicating with the assembly groove. The toggle block includes a sliding member slidably assembled left and right in the slide plate and a toggle rod fixedly connected to the upper end of the sliding member and penetrating upward through the slide plate. A guiding ring corresponding to the position of the toothed plate is fixedly connected to the left wall of the assembly groove, and a wire is fixedly connected to the lower left side of the sliding member and sequentially penetrates through the guiding ring and the wire passing groove and is fixedly connected to the sliding member.

2. The hand-held fry sucking tool according to claim 1, wherein: The connection between the suction device and the controller is a detachable connection.

3. The handheld fry suction tool according to claim 2, wherein: A slot for inserting the second housing is provided at the front side of the lower end of the first housing, and the second housing is inserted into the slot.

4. The handheld fry suction tool according to claim 3, characterized in that: The controller further includes a second elastic member fixedly connected between the first housing and the toggle part. When the second elastic member is naturally extended, the first step surface is at the position of the slot.

5. The hand-held fry suction tool according to claim 1, characterized in that: The connection between the vertical rod and the top body is a detachable connection.

6. The handheld fry suction tool according to claim 1, wherein: The detachable connection between the vertical rod and the top body is a threaded connection.

7. The hand-held fry sucking tool according to claim 1, wherein: The controller further includes a grip, the grip is arranged in a slide rod receiving groove for receiving the first housing, and the first housing is fixedly connected in the slide rod receiving groove.

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