Fry grabbing and fixing device and combined instrument for continuous injection of fries

Abstract

The utility model discloses a fish fry grabbing and fixing device and a combined instrument for continuous injection of fish fries, and belongs to the technical field of fish culture. The fixing device comprises a bottom support and two clamping pads fixed to the upper portion of the bottom support, a fixing groove for fish fries to enter is formed between the two clamping pads, and the bottom support is made of bendable flexible materials. According to the fixing device, the fixing groove is formed in the flexible bottom support, when the fixing device is used, only the fixing device needs to be held by hand to enter water, small fishes enter the fixing groove and then are tightly held by fingers, the bottom support can be rapidly bent, the fixing groove is tightened, and clamping and fixing of fish fries are achieved. In addition, the back of the fish body fixed in the mode just faces upwards, injection operation on back muscles of the fish body is facilitated, operation convenience is improved, and damage to the fish body caused by existing operation can be reduced. And the characteristics of precise liquid separation of the continuous liquid separator and small size of the needle head of the water-light pricking needle are utilized, so that the back muscle injection of the fry can be realized, the injury is small, the dosage is precise, the continuous injection can be realized, the time, the labor and the effort are saved, and the injection fatality rate is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fish breeding, in particular to a fry grabbing and fixing device and a combined device for continuous injection of fry. Background Art

[0002] As the density of aquaculture increases, the speed of fish disease transmission and the losses caused by it are also increasing. Among the methods of disease prevention and control, vaccinating fish fry is an important means to prevent the spread of diseases in larvae and adults. For example, when the infectious hematopoietic necrosis virus (IHNV) vaccine is used to prevent salmon and trout infectious hematopoietic necrosis (IHN) by injecting the fish back muscles, the best immunization period is within 3 months after the fry are hatched. During this period, the fry are weak (less than 1g / tail), and it is very difficult to fix the fry individually.

[0003] At present, the method of fixing fry is: the operator first uses the scoop net to scoop and gather the fish, and then the operator pinches the fish in the scoop net by holding the net cloth by hand to fix the fry. This method may cause the net cloth to damage the scales of the young fish when some fry swim and struggle in the scoop net, or cause damage to the fish bones due to poor pinching force, and it requires two people to complete the work, which is labor-intensive, time-consuming, labor-intensive, and labor-intensive. If the vaccine is injected through an ordinary injection device at this time, it often causes abrasions on the surface of the fry and sprains on the fish body. Large injection wounds may even cause direct death of the young fish. At present, the injury rate of young fish and the mortality rate of young fish after injection are greater than 20%.

[0004] Therefore, it is very important to develop more effective fry grabbing and fixing devices and combined instruments for continuous fry injection to reduce the mortality rate of fry injection. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a fry grabbing and fixing device, which can quickly fix the fry, provide operational convenience for fry injection, reduce fry damage, reduce the damage rate, improve the injection success rate, and reduce labor, thereby overcoming the shortcomings of existing fry fixing methods.

[0006] In order to solve the above technical problems, the utility model provides a fry grabbing and fixing device, including a base support and two clamping pads fixed on the upper part of the base support, a fixing groove for the fry to enter is formed between the two clamping pads, and the base support is made of a bendable and flexible material. After the fry enters the fixing groove, the base support is quickly bent to narrow the fixing groove and clamp the fry.

[0007] As a further improvement, the clamping pad is made of soft plastic or soft silicone.

[0008] As a further improvement, the clamping pad is made of foam sponge.

[0009] As a further improvement, an elastic bandage is provided at the lower part of the base, and the setting direction of the elastic bandage is the same as the notch direction of the fixing groove.

[0010] As a further improvement, the elastic bandages include two, which are respectively arranged below the clamping pad.

[0011] As a further improvement, a plurality of water leakage holes are provided on the base corresponding to the bottom of the fixing groove.

[0012] As a further improvement, the fixing groove is in an inverted trapezoidal structure that is larger at the top and smaller at the bottom, and the upper edge of the fixing groove is configured as an arc chamfered structure.

[0013] According to further improvements, the lower width of the fixing groove is 0.3-1.5 cm, the upper width of the fixing groove is 0.8-3.0 cm, the height of the fixing groove is 1.5-2.5 cm, and the thickness of the base is 1.0-2.0 mm.

[0014] The utility model also provides a combined instrument for continuous injection of fry, which, in addition to comprising the above-mentioned fry grabbing and fixing device, also comprises a continuous injection component for performing back muscle injection on the fish body fixed by the fry grabbing and fixing device.

[0015] As a further improvement, the continuous injection assembly comprises a continuous dispenser, a liquid storage needle tube and an injection needle which are connected in sequence, the injection needle is a water light acupuncture needle, the water light acupuncture needle uses a 34G needle head, and the needle head length is 1.5 to 6.0 mm.

[0016] After adopting such a design, the utility model has at least the following advantages:

[0017] 1. The fry grabbing and fixing device of the utility model is provided with a fixing groove on a flexible bottom support. When using the device, one only needs to hold the fixer and enter the water with high density of fry. After the fry enters the fixing groove, the bottom support can be quickly bent by clenching the fingers, so that the fixing groove is tightened and the fry is clamped and fixed. In addition, the fish body fixed in this way is just facing upward on the back, which is convenient for injection operation on the back muscles, improving the convenience of operation. In addition, because the fingers can better control the strength when clenching, it can reduce the damage to the fish during manual operation and improve the work efficiency of the fish body fixing step.

[0018] 2. The soft material of the clamping pad can also prevent damage to the fish body when the fry are clamped.

[0019] 3. By limiting the shape and size of the fixing groove, it can better adapt to the size of the fish body and be suitable for fish of different species or different periods, further ensuring that the fixed position of the fish body is appropriate and the injection operation is more convenient.

[0020] 4. Through the cooperation of the continuous dispenser, the liquid storage syringe and the water light acupuncture needle, the precise liquid dispensing of the continuous dispenser can ensure the accuracy of each injection amount, thereby ensuring the accuracy of the research and good drug administration efficiency; the smaller size of the water light acupuncture needle can reduce the damage to the fish body caused by injection, which is conducive to the rapid healing of the wound after injection and assists in improving the drug administration efficiency; the continuous dispenser can also realize the continuous injection of a large number of small fish, greatly reducing the workload of operators, improving work efficiency, shortening the injection time of each fish by more than 50%, and greatly reducing the injection mortality rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Figure 1 The utility model is a three-dimensional structural schematic diagram of a fry grabbing and fixing device.

[0023] Figure 2 It is a structural side view of a fry grabbing and fixing device of the utility model.

[0024] Figure 3 The utility model is a schematic diagram of the structural change of the fry grabbing and fixing device when clamping the fish body.

[0025] Among them, 1. bottom support; 11. water leakage hole; 2. clamping pad; 3. fixing groove; 10. fry. DETAILED DESCRIPTION

[0026] The utility model of the fry grabbing and fixing device is used to fix small fishes when injecting fry. Generally, when injecting fry, a large number of fry are first concentrated in a small container, such as a basin, so that the density of fry in water is very large, which is convenient for operators to grab the fry, and provides a very advantageous grabbing and fixing tool for fry injection. The specific embodiments are as follows.

[0027] Refer to the attached Figure 1 and 2 As shown, the fry grabbing and fixing device of this embodiment includes a bottom bracket 1 and two clamping pads 2 fixed on the upper part of the bottom bracket 1. The two clamping pads 2 are symmetrically arranged on both sides of the upper part of the bottom bracket 1, and a fixing groove 3 for fish to enter is formed in the middle. The bottom bracket 1 is made of a bendable and flexible material with a thickness of 1.0 to 2.0 mm, and is bendable at least along the notch direction of the fixing groove 3. After the fry 10 enters the fixing groove 3, the bottom bracket 1 is quickly bent to narrow the fixing groove 3 to achieve the clamping of the fry 10. As shown in the attached figure Figure 3When the holder is used to catch fry, the user only needs to hold the holder in the water, and the notch direction of the fixing groove 3 is the same as the hand holding direction. After the small fish swims into the fixing groove 3, the fingers are tightly grasped, and the bottom support 1 can be quickly bent to narrow the fixing groove 3, thereby clamping the fry 10. At this time, the fingers are not loose, and the holder is taken out of the water. The fish body is just in a normal position and comfortably located in the fixing groove 3, that is, the fish back is facing upward, which is very convenient for injecting the fish back muscles, providing great convenience for injecting vaccines or drugs into the fish body, and greatly reducing the damage to the fish body.

[0028] In this embodiment, the clamping pad 2 is made of soft plastic material, such as foam sponge, which can easily fix the fish body without clamping the fish body too tightly to avoid damaging the fish body. Of course, the clamping pad 2 can also be made of soft silicone, soft rubber and other materials.

[0029] In a preferred embodiment, two elastic bandages 4 are further fixed to the lower part of the base 1. The two elastic bandages 4 are respectively arranged below the clamping pad 2, and the arrangement direction of the elastic bandages 4 is the same as the notch direction of the fixing groove 3, so that they can be respectively put on the palm and fingers during use, which can effectively prevent the fixer from slipping off and facilitate the fingers to drive the base to bend, thereby improving the convenience of operation.

[0030] In this embodiment, a plurality of water leakage holes 11 are provided on the base bracket 1 corresponding to the bottom of the fixing groove 3, so as to facilitate the smooth outflow of water in the groove when the fixing groove is clamped or the fixture is picked up.

[0031] In a preferred embodiment, the fixing groove 3 is set to an inverted trapezoidal structure with a small bottom and a large top, which can make it easier for the fish to swim into the fixing groove 3, and the fixing groove 3 can be clamped to fit the body structure of the fish. For example, the lower width of the fixing groove 3 is 0.3-1.5 cm, the upper width of the fixing groove 3 is 0.8-3.0 cm, and the height of the fixing groove 3 is 1.5-2.5 cm. Of course, according to the size of the fish, a variety of models and sizes of fixers can be set to better use for fish of different stages and species.

[0032] The upper edge of the fixing groove 3 may also be configured as an arc-shaped chamfered structure to prevent straight edges and right-angled points from damaging the fish body.

[0033] The utility model is a combined device for continuous injection of fry, comprising a continuous injection component for injecting into the back muscle of the fish body and the above-mentioned fry grabbing and fixing device. The continuous injection component and the fry grabbing and fixing device are used in conjunction with each other to better realize the injection of the fish body, not only improving the injection efficiency, but more importantly, reducing the damage to the fish body to a minimum, greatly improving the survival rate of the fish body.

[0034] The continuous injection assembly in this embodiment includes a continuous liquid dispenser, a liquid storage needle tube and an injection needle connected in sequence. The continuous liquid dispenser adopts a commercially available continuous liquid dispenser, such as an eppendorf continuous liquid dispenser, which can accurately measure liquid output and is easy to operate. The liquid storage needle tube also adopts a commercially available liquid storage tube that is matched with the continuous liquid dispenser, such as a specification of 1ml / piece or 2.5ml / piece. The injection needle adopts a commercially available water light puncture needle.

[0035] The water light pricking needle adopts a 34G needle, and the needle length is selected to be 1.5-6.0mm according to the size of the fish body, so that the needle can just enter the back muscle of the fish body without being inserted too deep to cause damage to the fish body.

[0036] In order to adapt to the end size of the hyaluronic acid acupuncture needle, the front end size of the liquid storage needle tube is adjusted to an outer diameter of 3.8-4.2 mm, which is convenient for the fixation and airtight connection between the liquid storage needle tube and the hyaluronic acid acupuncture needle.

[0037] When the utility model is used for the combined device of continuous injection of fry, the end of the liquid storage needle tube is connected to the front end of the continuous dispenser, rotated and locked, and the liquid suction lever on the continuous dispenser is slid to absorb the injection liquid, and the corresponding dose of liquid is absorbed according to the specifications of the liquid storage needle tube, such as 1ml / piece or 2.5ml / piece; and the end of the water light spotting needle is connected to the front end of the liquid storage needle tube. Then the operator holds the fixture with one hand to take the fish, and holds the continuous dispenser with the other hand. When the fixture fixes the fish body, the operator inserts the water light spotting needle into the back of the fish body with the other hand, and moves the push lever on the continuous dispenser to achieve an injection dose of 10ul-50ul each time, that is, the injection is completed, and the fish are released and then continue to be fished to achieve continuous injection. Among them, the injection dose is a preset value. If the preset value is 10ul / time, the 1ml / piece liquid storage syringe can continuously inject 100 fish; if the preset value is 25ul / time, the 2.5ml / piece liquid storage syringe can continuously inject 100 fish; if the preset value is 50ul / time, the 2.5ml / piece liquid storage syringe can continuously inject 50 fish.

[0038] Compared with the traditional injection method and syringe, the combined device for continuous injection of fry of the utility model has the advantages of convenient grasping, high efficiency, less damage to fry of different specifications, continuous operation, high injection dosage accuracy, etc., and can be completed by one person alone. In actual production, the use of the combined device of the utility model saves time, labor and effort, truly improves the injection success rate, reduces the loss of fry, improves the economic benefits of fish farming, and is conducive to promotion.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Those skilled in the art may make some simple modifications, equivalent changes or modifications using the technical contents disclosed above, which are all within the protection scope of the present invention.

Claims

1. A fry grabbing and fixing device, characterized in that: The invention comprises a bottom support and two clamping pads fixed on the upper part of the bottom support, a fixing groove for the fry to enter is formed between the two clamping pads, and the bottom support is made of a bendable and flexible material, so that after the fry enters the fixing groove, the bottom support is quickly bent to narrow the fixing groove and clamp the fry.

2. The fry grabbing and fixing device according to claim 1, characterized in that: The clamping pad is made of soft plastic or soft silicone.

3. The fry grabbing and fixing device according to claim 2, characterized in that: The clamping pad is made of foam sponge.

4. The fry grabbing and fixing device according to claim 1, characterized in that: An elastic bandage is arranged at the lower part of the base, and the arrangement direction of the elastic bandage is the same as the notch direction of the fixing groove.

5. The fry grabbing and fixing device according to claim 4, characterized in that: The elastic bandages include two bandages, which are respectively arranged under the clamping pads.

6. The fry grabbing and fixing device according to claim 1, characterized in that: A plurality of water leakage holes are provided on the bottom bracket corresponding to the bottom of the fixing groove.

7. The fry grabbing and fixing device according to claim 1, characterized in that: The fixing groove is in an inverted trapezoidal structure with a larger upper portion and a smaller lower portion, and the upper end edge of the fixing groove is configured as an arc chamfered structure.

8. The fry grabbing and fixing device according to claim 7, characterized in that: The lower width of the fixing groove is 0.3-1.5 cm, the upper width of the fixing groove is 0.8-3.0 cm, the height of the fixing groove is 1.5-2.5 cm, and the thickness of the base is 1.0-2.0 mm.

9. A combined device for continuous injection of fry, characterized in that: It comprises the fry grabbing and fixing device as described in any one of claims 1 to 8, and also comprises a continuous injection component for performing back muscle injection on the fish body fixed by the fry grabbing and fixing device.

10. The combined device for continuous injection of fry according to claim 9, characterized in that: The continuous injection assembly comprises a continuous dispenser, a liquid storage needle tube and an injection needle which are connected in sequence. The injection needle is a water light acupuncture needle. The water light acupuncture needle uses a 34G needle head, and the needle head length is 1.5 to 6.0 mm.

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