CN207476671U - The fish fixator traced for fish respiratory movement - Google Patents

Abstract

The utility model relates to a fish holder for tracing fish breathing movement, comprising a base, a slide rail is arranged on the left side of the upper side of the base along the direction of the long side, and the slide rail is sequentially provided with slide rails from front to back to slide with the slide rail. The matching V-shaped lower chuck, fish maw support, and two tail clamps. There is a column on the right front of the upper side of the base, and a cross bar on the upper end of the column. Located above the slide rail, the outer end of the cross bar is vertically provided with a through notch, and a V-shaped upper chuck is arranged in the through notch to match the V-shaped lower chuck. The V-shaped upper chuck can move up and down relative to the cross bar. The side wall of the cross bar is provided with a screw hole communicating with the notch, and a set screw for locking and fixing the V-shaped upper chuck is arranged in the screw hole. The utility model is adjustable and suitable for fixing fish of different sizes, and can protect the fish No harm, greatly reducing the problem of experimental error and the problem that the test can only be carried out on one side of the fish body and it is not easy to sample and inject.

Description

Fish Holder for Fish Respirograms

technical field

The utility model relates to a fish fixer used for tracing fish respiration and movement.

Background technique

With the continuous research and exploration of domestic aquatic research institutions, my country's fishery has developed rapidly. Ichthyology research is an important branch of aquatic research. A series of research and exploration from fish growth and reproduction to fish disease prevention and control require a large number of experiments to verify. In order to obtain low-error experimental research results during the research process, it is necessary to improve the experimental operation level and experimental accuracy of fish research. Due to restrictive factors such as the smooth surface of the live fish, the inability to breathe after being out of water, and the increase in body mucus and odor after the stress response of the fish, it is more difficult to fix the fish before the experiment. Laboratories usually use anesthesia, but this method is expensive, affects experimental results, and is not conducive to fish research. Therefore, designing an effective experimental fish fixture has become an important way to reduce experimental errors.

At present, in the known fish retainer (application number: 201420263544.2), when the head clamp of the retainer is put into the fish mouth, the folded metal strip in Figure 3 will stretch out in the fish mouth, causing discomfort to the fish. Cause the fish to struggle, and the body and tail clamps will cause discomfort or even injury to the fish body surface due to the restraint clamp. Being in an abnormal physiological state, the fish fixer makes the fish in a vertically upward state, and itself makes the fish in an abnormal state. Based on the above factors, when using this fish fixer to do the fish fixing experiment, the fish will struggle and be easily injured, and the fish will not be placed in the environment closest to the normal environment of the fish. The experimental operation is not convenient, and the experimental error is relatively large. In the fish respiration and motion tracing experiment, the mechanical-electrical energy converter device cannot be fixed in the device, and it needs to be connected to other fixed devices. In addition, this device can only be adapted to fish of 4 kinds of specifications and sizes, and the flexibility is not large.

Contents of the invention

The purpose of this utility model is to provide a kind of fish fixer used for fish respiration movement tracing for the above deficiencies.

The solution adopted by the utility model to solve the technical problem is: a fish holder for tracing fish breathing motion, including a base, the left side of the upper side of the base is provided with a slide rail along the direction of the long side, on the slide rail is a From front to back, there are V-shaped lower chucks, fish maw supports, and two tail clips that are slidably matched with the slide rails. A column is provided on the right front of the upper side of the base, and a cross bar is provided on the upper end of the post. The end is connected with the upper end of the column, the outer end of the cross bar is located above the slide rail, the outer end of the cross bar is vertically provided with a through notch, and a V-shaped upper chuck matched with the V-shaped lower chuck is arranged in the through notch. The V-shaped upper chuck can move up and down relative to the cross bar. The side wall of the cross bar is provided with a screw hole communicating with the notch, and a set screw for locking and fixing the V-shaped upper chuck is arranged in the screw hole.

Further, the upper part of the V-shaped lower chuck and the lower part of the V-shaped upper chuck are provided with matching notches for accommodating fish heads.

Further, the upper part of the fish maw support is provided with matching notches for accommodating the fish belly.

Further, the tail clip includes a base block that slides and fits with the slide rail, a fixed rod is arranged on the left side of the upper part of the base block, and a tail clip slide rail is arranged on the right side of the upper part of the base block along the short side of the base. There is a movable rod, and a hexagon socket head screw is vertically arranged on the movable rod, and the lower end of the hexagon socket head screw is against the tail clamp slide rail to fix the movable rod, and the inner surface matching the movable rod and the fixed rod is provided with a groove for accommodating the fish tail mouth.

Further, a lifting column is vertically arranged in the middle part of the right side of the upper side of the base.

Further, a drawer chamber is provided in the base, a drawer is provided in the drawer chamber, and a weight block is provided in the drawer.

Further, the base is provided with a T-shaped locking bar for locking the drawer.

Further, the cross-section of the T-shaped lock bar is a regular hexagon, which can be used to tighten and unscrew the hexagon socket head cap screws to prevent the drawer from sliding out.

Further, the cross bar is rotatably connected to the upper end of the column, and the inner end of the cross bar and the upper end of the column are provided with pin holes that cooperate with each other, and a conical pin is provided in the pin hole.

Compared with the prior art, the utility model has the following beneficial effects: simple in structure, reasonable in design, easy to use, adjustable and suitable for fixing fish of different sizes, able to protect fish from harm, and keep fish in the closest natural and normal state. State, greatly reducing the problem of experimental error and the problem that the test can only be carried out on one side of the fish body and it is not easy to sample and inject.

Description of drawings

Below in conjunction with accompanying drawing, the utility model patent is further described.

Fig. 1 is the schematic diagram of the structural state of fixing the fish of the device;

Fig. 2 is a structural schematic diagram of the device.

In the picture:

1-base; 2-slide rail; 3-V-shaped lower chuck; 4-maw support; 5-tail clamp; 501-base block; 502-fixed rod; -Inner hexagon screw; 6-column; 7-reinforcing rib; 8-crossbar; 9-taper pin; 10-V-type upper chuck; 11-set screw; 12-fish; Drawer; 15-weight block; 16-T-shaped locking bar.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

As shown in Figure 1-2, a fish holder for fish breath movement tracing, including a base, the left side of the upper side of the base is provided with a slide rail along the long side direction, and the slide rails are sequentially arranged from front to back It is equipped with a V-shaped lower chuck that slides and cooperates with the slide rail, a fish maw support, and two tail clips. The two adjustable tail clips are used together to limit the force exerted by the fish tail. The upper side of the base The front part on the right side is provided with a column, and the upper end of the column is provided with a cross bar, the inner end of the cross bar is connected with the upper end of the column, the outer end of the cross bar is located above the slide rail, and the outer end of the cross bar is vertically provided with a through notch, through which There is a V-shaped upper chuck matched with the V-shaped lower chuck in the notch. The V-shaped upper chuck can move up and down relative to the cross bar. The side wall of the cross bar is provided with a screw hole that communicates with the notch. The screw hole is provided with a useful Used to lock and fix the set screw of the V-shaped upper chuck.

In this embodiment, the crossbar is connected to the upper end of the column in rotation, and the inner end of the crossbar and the upper end of the column are provided with pin holes that cooperate with each other, and a conical pin is arranged in the pin hole. The preferred crossbar is connected and fixed with the upper end of the column by bolts. A bearing is arranged between the cross bar and the cross bar.

In this embodiment, the upper part of the V-shaped lower chuck and the lower part of the V-shaped upper chuck are provided with matching notches for accommodating fish heads.

In this embodiment, the upper part of the fish maw support is provided with a matching notch for accommodating the belly of the fish, and the fish maw support can be adjusted according to the size of the fish so as not to squeeze the fish.

In this embodiment, the tail clip includes a base block that is slidably matched with the slide rail, a fixed rod is arranged on the left side of the upper part of the base block, and a tail clip slide rail is arranged on the right side of the upper part of the base block along the short side of the base, and the tail clip slides A movable rod is arranged on the rail, and a hexagon socket screw is arranged vertically on the movable rod. The notch at the tail has an elliptical shape, and the width of the elliptical hole between the movable rod and the fixed rod can be changed by moving the movable rod to adapt to fishes of different sizes.

In this embodiment, a lifting column is vertically arranged in the middle part of the right side of the upper side of the base.

In this embodiment, a drawer chamber is arranged in the base, a drawer is arranged in the drawer chamber, and a weight block is arranged in the drawer.

In this embodiment, the base is provided with a hexagonal T-shaped locking bar for locking the drawer.

In this embodiment, the cross-section of the T-shaped lock bar is a regular hexagon, which can be used to tighten and unscrew the hexagon socket head cap screws to prevent the drawer from sliding out.

In this embodiment, the base, slide rail, V-shaped lower chuck, fish maw support, tail clamp, cross bar, and V-shaped upper chuck are all made of polylactic acid (PLA), which has good biodegradability and can be used after use. It can be completely degraded by microorganisms in nature under specific conditions, and finally generate carbon dioxide and water without polluting the environment.

In this example, the fish needs to be fixed before the experiment. At this time, no medicine is added to the water, and the clamp can be operated in the water. The medicine will be added in the middle of the experiment. After the experiment, the hands should not be in direct contact with the water. Put the experimental drug in the water and put it out without hurting the skin of the hands. During the experiment, the mechanical-electric energy sensor device can also be fixed on the lifting column, which saves the external fixing device of the sensor.

When clamping, you only need to ensure that the position of the V-shaped upper head clamp and the V-shaped lower head clamp is between the snout and the cheek of the fish (the head and snout of the fish are shown in the figure below), so that the placement will not affect the movement of the gill cover of the fish. . The V-shaped lower head clip fits on the slide rail of the base through the chute, and can be moved and adjusted. The front part of the notch part of the V-shaped lower head clip is provided with a wedge angle. When the fish has a tendency to move forward, the wedge corner and the weight block device can restrict the fish and prevent the base from moving.

The above preferred embodiments have further described the purpose, technical solutions and advantages of the utility model in detail. It should be understood that the above descriptions are only preferred embodiments of the utility model and are not intended to limit the utility model. For new models, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims (9)

1. A fish holder for fish respiratory movement tracing, characterized in that: it comprises a base, the left side of the upper side of the base is provided with a slide rail along the long side direction, and the slide rail is sequentially provided with The V-shaped lower chuck, fish maw support, and two tail clips that are slidingly matched with the slide rail, a column is arranged on the right front of the upper side of the base, and a cross bar is arranged on the upper end of the column, and the inner end of the cross bar is connected with the upper end of the column , the outer end of the cross bar is located above the slide rail, and the outer end of the cross bar is vertically provided with a through notch, and a V-shaped upper chuck that matches the V-shaped lower chuck is arranged in the through notch, and the V-shaped upper chuck can Moving up and down relative to the cross bar, the side wall of the cross bar is provided with a screw hole communicating with the notch, and a set screw for locking and fixing the V-shaped upper chuck is arranged in the screw hole. 2. The fish holder for fish respiratory movement tracing according to claim 1, characterized in that: the upper part of the V-shaped lower chuck and the lower part of the V-shaped upper chuck are provided with matching fittings for accommodating fish. head notch. 3 . The fish holder for fish breathing motion tracing according to claim 1 , characterized in that: the upper part of the fish maw support is provided with a matching notch for accommodating the fish belly. 4 . 4. The fish holder for fish breathing motion tracing according to claim 1, characterized in that: the tail clamp includes a base block that slides with the slide rail, and a fixed rod is arranged on the left side of the upper part of the base block, The right side of the upper part of the base block is provided with a tail clip slide rail along the short side of the base. A movable rod is arranged on the tail clip slide rail. An inner hexagon screw is vertically arranged on the movable rod. The lower end of the inner hexagon screw is against the tail clip slide rail for The movable rod is fixed, and the inner surface matched with the movable rod and the fixed rod is provided with a notch for accommodating the tail of the fish. 5 . The fish holder for fish respiratory movement tracing according to claim 4 , wherein a drawer chamber is arranged in the base, a drawer is arranged in the drawer chamber, and a weight block is arranged in the drawer. 6 . 6 . The fish holder for fish breath movement tracing according to claim 5 , wherein a T-shaped locking bar for locking the drawer is arranged on the base. 7 . 7. The fish holder for fish breathing motion tracing according to claim 6, characterized in that: the cross-section of the T-shaped locking rod is a regular hexagon, which can be used to tighten and unscrew the hexagon socket head cap screws to prevent The drawer slides out. 8. The fish holder for fish breath movement tracing according to any one of claims 1-7, characterized in that: a lifting column is vertically arranged in the middle part of the right side of the upper side of the base. 9. The fish holder for fish respiratory movement tracing according to any one of claims 1-7, characterized in that: the crossbar is connected to the upper end of the column in rotation, and the inner end of the crossbar and the upper end of the column are provided with The pin holes that cooperate with each other are provided with conical pins in the pin holes.