CN203985622U - A kind of leech adheres to bed - Google Patents

Abstract

The utility model relates to a leech attachment bed, which comprises a floating box, a corrugated plate attachment surface, a fixed plate, a cover plate and a screw sealing plug, wherein the upper end and the central part of the lower end of the floating box are respectively provided with holes, and the holes are arranged inwardly. There is a screw sealing plug to block; the upper end of the floating box is provided with a cover plate; there are screw holes around the cover plate, and screws are provided in the screw holes to fix the cover plate on the floating box; the side of the floating box is provided with fixing holes for fixing plates, The fixing hole of the fixing plate is used to connect with the fixing plate; the fixing plate is provided with a fixing plate slot, and the fixing plate slot is connected with the locking hole provided on the corrugated plate attachment surface. The utility model device can control the height of the floating box according to the density of the leeches; the corrugated plate attachment surface is wavy, which increases the attachment surface per unit area; the provided cover plate can prevent the leeches from being exposed to the sun and reduce the water temperature at the attachment bed. Both day and night provide ideal sites for leeches to attach to.

Description

A kind of leech attachment bed

technical field

The utility model relates to a leech attachment bed, which belongs to the technical field of aquaculture.

Background technique

Leeches, commonly known as leeches, belong to the phylum Annelida, class Hirudophylum, order Hirudognathus, and the family Hirudoceae. It grows and reproduces in inland fresh waters and is a traditional special medicinal aquatic animal in my country. Leeches contain hirudin, which can delay and hinder blood coagulation, thus having anticoagulant effect. Hirudin extracted from leeches is very effective in dilating blood vessels, reducing blood viscosity, and increasing blood circulation. Now it has developed drugs for treating stroke, high blood pressure, clearing blood stasis, amenorrhea, bruises, etc., as well as various health care products and cosmetics. .

Leeches are called "soft gold". The main problems are the low survival rate and low breeding output. In the process of artificial breeding, it was found that leeches are prone to enteritis, hemorrhagic disease, and ossified disease. At the same time, there are often problems of uneven individuality and slow growth rate, resulting in low breeding yield and low survival rate. After long-term research, it has been found that leeches like to adsorb at the interface between the water surface and the air after ingesting, that is, the head is up and the tail is down, or the body vibrates in waves after the head and tail suction cups fix some objects on the bottom of the water. Its main function is related to the digestion of leeches. The digestive system of leeches is not tubular but tree-shaped. There are many cystic digestive tissues on both sides of the main digestive tract. The digestive organs do not have obvious circular movements or swings like other animals. Therefore, after the food is absorbed along with the nutrients in the intestine, it is difficult for the residue to be pushed to the anus naturally. The movement of the digested residue of the leech to the anus comes from two ways: one is gravity, the mouth of the leech faces up and the tail faces down, and the food residue gradually falls under the action of gravity and is transported to the anus; the other is through wave vibration to transport the food push back. Often leeches combine the first method with the second to more effectively dislodge food debris. Therefore, it can be observed that leeches will be adsorbed on the objects by the pond or vibrate at the bottom of the pond after ingesting. When the density of leeches is high and the absorbable matter is small, a large number of leeches can often be seen to get together.

The current breeding modes of leeches include pond culture and cage culture, both of which set up seine nets on the edge of the leech activity space and place some aquatic plants in the water. Some leeches can be adsorbed on the seine net, but the best adsorbent for the sucker is a smooth surface, and the leech is not easy to suck on the mesh, so it needs to consume more physical strength to maintain the adsorption state; aquatic plants are a good adsorbent for leeches Among them, water hyacinth and water peanuts are the best, and the effect of submerged plants is relatively poor, but the environment provided by aquatic plants is suitable for the habitat of leeches. It will affect the oxygenation capacity of the water body, and it is easy to lack oxygen at night at high temperature, resulting in the death of leeches. Some leeches at the bottom of the pool are easily infected by pathogens and suffer from various diseases due to low dissolved oxygen. At the same time, when the leech lacks the attachment base, the digestion speed will slow down, thereby affecting the growth, and the food stays in the body for a long time and is easy to be infected with digestive tract diseases. Therefore, adding devices suitable for leech adsorption in the leech pond is an effective method to increase growth rate, reduce disease and increase yield.

Utility model content

The purpose of the utility model is to provide a leech attachment bed, which is used to solve the problem of insufficient leech attachment area in leech cultivation, a large number of clusters, affecting feeding and growth, spreading diseases, resulting in high mortality and slow growth in leech cultivation.

In order to achieve the above object, the technical scheme of the utility model is as follows.

A leech attachment bed, comprising a floating box, a corrugated plate attachment surface, a fixed plate, a cover plate and a screw sealing plug, wherein the upper and lower central parts of the floating box are respectively provided with holes, and the holes are provided with screw sealing plugs inwardly It is blocked; the upper end of the floating box is provided with a cover plate; there are screw holes around the cover plate, and screws are provided in the screw holes to fix the cover plate on the floating box; It is used to connect with the fixed plate; the fixed plate is provided with a fixed plate slot, and the fixed plate slot is connected with the slot provided on the attachment surface of the corrugated plate.

Further, the floating box is a cuboid hollow floating box made of non-toxic plastic.

Further, the screw sealing plug can be used to adjust the water quantity in the buoyancy box by opening and closing, and arbitrarily control the water entry depth of the leech attachment bed according to the number of leeches.

Further, a screw hole is provided at a distance of 20 mm from the upper edge of the floating box, and the diameter of the screw hole is 13.5 mm for fixing the cover plate.

Further, there are two fixing holes of the fixing plate, which are 85mm from the top edge of the floating box and 70mm from the side edge. The opening size of the holes is 5mm×30mm, and are used to fix the fixing plate.

Furthermore, the cover plate is a black light-weight hard plastic plate, and the length, width, and thickness are 1000mm×400mm×5mm. The length can be adjusted according to needs. There are screws with a diameter of 13.5mm at the four corners of the cover plate 100mm from the short side and 70mm from the long side. The hole is connected with the floating box by a screw with a diameter of 12mm, and is fixed on the floating box. The cover plate can prevent the leeches from being exposed to the sun, reduce the water temperature at the attachment bed, and provide ideal attachment sites for the leeches day and night.

Furthermore, the corrugated plate attachment surface is made of hard non-toxic plastic in a wave shape, with a size of 300mm×19mm, which increases the attachment surface per unit water body, and the wave size of the corrugated plate attachment surface can also be changed according to the size of the leech. Two openings with a width of 6mm are opened on the attachment surface of the corrugated plate at a distance of 75mm from the upper end and 70mm from the side. density.

Furthermore, the size of the fixing plate is 5mm×30mm×800mm, and the two ends are respectively inserted into the openings of the floating box. There are grooves on the fixing plate, and the grooves are all facing upward, which can fix the position of the corrugated plate attachment surface.

In addition, the screw is an ordinary stainless steel screw with a diameter of 12mm, which is mainly used to fix the cover plate and the floating box. The screw sealing plug is mainly used to block the opening of the floating box.

The beneficial effects of the utility model are: the utility model device can control the height of the floating box according to the leech density; the corrugated plate attachment surface is wave-shaped, which increases the attachment surface per unit area; the provided cover plate can prevent the leeches from being exposed to the sun Expose to the sun, reduce the water temperature at the attachment bed, and provide ideal attachment sites for leeches day and night. After the device is used, it is used to provide a circulating water system to gradually replace the sewage and replenish fresh and clean water for the pond; a micro-flow is formed in the pond, and the bottom dirt can be decomposed in time, greatly reducing the amount of germs and reducing the risk of disease occur. At the same time, in the high temperature season in summer, the continuous water flow can reduce the temperature and reduce the incidence of high temperature diseases of leeches.

Description of drawings

Fig. 1, the schematic diagram of the top surface of this utility model device.

Fig. 2, the side schematic diagram of this utility model device.

Fig. 3 is a schematic diagram of the structure of the cover plate in the utility model device.

Fig. 4 is a schematic structural diagram of the floating box in the utility model device.

Fig. 5 is a schematic diagram of the top view structure of the floating box in the utility model device.

Fig. 6 is a schematic diagram of the side structure of the floating box in the utility model device.

Fig. 7 is a schematic diagram of the side structure of the attachment surface of the corrugated plate in the utility model device.

Fig. 8 is a structural schematic diagram of the fixed plate in the utility model device.

Marking description in the figure: 1. Floating box; 2. Attachment surface of corrugated plate; 3. Fixing plate; 4. Screw hole; 5. Screw sealing plug; 6. Cover plate; 7. Fixing hole of fixing plate; 8. Fixing plate Groove; 9, card hole.

Detailed ways

The specific embodiment of the utility model is described below in conjunction with accompanying drawing, so that better understanding of the utility model.

The leech attachment bed shown in Figure 1 and Figure 2 includes a floating box 1, a corrugated plate attachment surface 2, a fixed plate 3, a cover plate 6 and a screw sealing plug 5, wherein the upper and lower central parts of the floating box 1 are respectively arranged There are holes, and the holes are all provided with screw sealing plugs 5 inwardly to block; the upper end of the floating box 1 is provided with a cover plate 6; the cover plate 6 is surrounded by screw holes 4, and screws are provided in the screw holes 4 to fix the cover plate 6 Fixed on the floating box 1; the side of the floating box 1 is provided with a fixed plate fixing hole 7, which is used to connect with the fixed plate 3; the fixed plate 3 is provided with a fixed plate slot 8, and a fixed plate slot 8 It is connected with the card hole 9 provided on the attachment surface 2 of the corrugated board.

The floating box 1 is a cuboid hollow floating box made of non-toxic plastic, and its length, width and height are 300mm x 100mm x 200mm, as shown in Fig. 4, Fig. 5 and Fig. 6.

The screw sealing plug 5 can be used to adjust the water yield in the buoyancy box by opening and closing, and arbitrarily controls the depth of entry of the leech attachment bed according to the number of leeches.

The screw hole 4 is set at a distance of 20 mm from the upper edge of the floating box 1 , and the diameter of the screw hole 4 is 13.5 mm for fixing the cover plate 6 .

The fixing hole 7 of the fixing plate is 85 mm from the top edge of the floating box 1 and 70 mm from the side.

The cover plate 2 is a black lightweight hard plastic plate, the length, width, and thickness are 1000mm×400mm×5mm, and the length can be adjusted according to the needs. The four corners of the cover plate 2 are 100mm away from the short side and 70mm away from the long side. There are screw holes with a diameter of 13.5mm 4. Use screws with a diameter of 12mm to connect with the floating box 1 and fix it on the floating box 5, as shown in Figure 3. The cover plate 2 can prevent the leeches from being exposed to the sun, reduce the water temperature at the attachment bed, and provide an ideal attachment place for the leeches day and night.

The corrugated plate attachment surface 3 is made of hard non-toxic plastic in a wave shape, with a size of 300mm×19mm, which increases the attachment surface of a unit water body. The wave size of the corrugated plate attachment surface can also be changed according to the size of the leeches, as shown in Figure 7 . Two openings with a width of 6mm are opened on the attachment surface 3 of the corrugated plate at a distance of 75mm from the upper end and 70mm from the side. Install the desired density.

The size of the fixing plate 3 is 5mm×30mm×800mm, and the two ends are respectively inserted into the opening of the floating box 1. There are grooves on the fixing plate 3, and the grooves are all facing upward, which can fix the position of the corrugated plate attachment surface, as shown in Figure 8.

In addition, the screw 5 is an ordinary stainless steel screw with a diameter of 12 mm, which is mainly used for fixing the cover plate and the floating box. The screw sealing plug 6 is mainly used to block the opening of the floating box.

The above-mentioned device is used in the following examples and has achieved good application results:

Example 1:

The leeches are attached to the bed for high-density seedling raising in cages: the size of the high-density seedling raising cages is 2m×2m, and the water depth is 40cm. 100,000 newly hatched wide-bodied leech seedlings with a size of about 0.02 g were placed in each cage. Put 10 leech attachment beds with a specification of 300mm×200mm×1000mm, place 50 corrugated attachment surfaces on each leech attachment bed, and place 2 feeding platforms with a size of 1000mm×500mm. When putting the seedlings, fill the lifting float with 80% water, and reduce the water by 10% every 3 days, that is, increase the height of the float. Feed enough small screws every day. After 10 days of breeding, the average size of leech seedlings reaches 0.1g, the average yield of single-port cages is 9730g, the average yield of single leech attachment bed is 973g, and the survival rate of seedlings reaches 97.3%.

Example 2:

Cultivation of young seedlings in net cages attached to leeches: the size of the cages for young seedlings is 50m×4m, and the water depth is 60cm. 150,000 wide-bodied golden thread leech seedlings with a specification of about 0.1g were placed in each cage. Put 400 leech attachment beds with a specification of 300mm×200mm×1000mm, place 25 corrugated attachment surfaces on each leech attachment bed, and place 20 feeding platforms with a size of 5000mm×600mm. When the seedlings are put, the lifting float is filled with 40% water. Feed enough screws every day. After 40 days of breeding, the average size of leech seedlings reached 3.51g, the average yield of single-port cages was 478.06kg, the average yield of single leech attachment bed was 1195g, and the survival rate of seedlings reached 90.8%.

Example 3:

The leech attachment bed is used for cultivating finished leeches in the earthen pond: the earthen pond has an area of 10 mu and a water depth of 80 cm. There are fences around the pond to prevent leeches from escaping. 400,000 young seedlings of wide-bodied leeches with a size of about 3g were released. Put 2,000 leech attachment beds with specifications of 300mm×200mm×1000mm, place 20 corrugated attachments on each leech attachment bed, and place 60 feeding platforms with a size of 5000mm×600mm. When putting seedlings, the lifting float is filled with 20% water. Feed enough screws every day. After 80 days of breeding, the average size of leech seedlings reached 15.7g, the total yield reached 5978.56kg, the yield per mu reached 597.8kg, the average yield of a single leech attachment bed was 2989g, and the survival rate of seedlings reached 95.2%.

The above is a preferred embodiment of the present utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, some improvements and modifications can also be made, these improvements and modifications It is also regarded as the protection scope of the present utility model.

Claims (6)

1. leech adheres to a bed, comprises floating box, corrugated plating attachment surface, fixed head, cover plate and helixseal plug, it is characterized in that: shown in the top and bottom central part of floating box respectively arrange porosely, this hole is inwardly provided with helixseal plug and is stopped up; Described floating box upper end is provided with cover plate; Described cover plate surrounding is provided with screw hole, is provided with screw in order to cover plate is fixed in floating box in described screw hole; Described floating box side is provided with fixed head fixing hole, and described fixed head fixing hole is in order to be connected with fixed head; On described fixed head, be provided with fixed head draw-in groove, described fixed head draw-in groove is connected with the hole clipping being arranged on corrugated plating attachment surface.

2. leech according to claim 1 adheres to bed, it is characterized in that: described floating box adopts non-toxic plastic to make cuboid hollow floating box.

3. leech according to claim 1 adheres to bed, it is characterized in that: described screw hole is arranged on the place apart from floating box upper end-face edge 20mm, and the diameter of screw hole is 13.5mm, in order to securing cover plate.

4. leech according to claim 1 adheres to bed, it is characterized in that: described fixed head fixing hole, apart from floating box top margin 85mm, side 70mm, is provided with two, and the bore size in this hole is 5mm × 30mm, in order to fixing fixed head.

5. leech according to claim 1 adheres to bed, it is characterized in that: described cover plate is black lightweight rigid plastic sheet, length and width, gauge are 1000mm × 400mm × 5mm, there is the screw hole of diameter 13.5mm at described cover plate four angular distance minor face 100mm and 70mm place, distance limit, adopt the screw of diameter 12mm to be connected with floating box.

6. leech according to claim 1 adheres to bed, it is characterized in that: described fixed head is of a size of 5mm × 30mm × 800mm, and floating box perforate is inserted respectively at two ends, fluted on described fixed head, groove all upward, in order to the position of set wave card attachment surface; Described corrugated plating attachment surface is that hard non-toxic plastic does waviness, is of a size of 300mm × 19mm; Described corrugated plating attachment surface is opened the opening of two wide 6mm apart from upper end 75mm and side 70mm place, open card at the groove of fixed head in order to corrugated plating is fixed.