JPH0214958U

JPH0214958U -

Info

Publication number: JPH0214958U
Application number: JP1988092116U
Authority: JP
Priority date: 1988-07-11
Filing date: 1988-07-11
Publication date: 1990-01-30
Also published as: JPH0343986Y2

Description

[Brief explanation of drawings]

第１図は本考案を採用したふ化槽の正面図、第
２図は第１図の矢視図、第３図は第１図の矢
視図、第４図は第３図の−断面図、第５図は
第４図の要部拡大図、第６図は第５図の矢視部
分図、第７図は第１図の−断面図、第８図は
従来例の構造略図、第９図、第１０図はそれぞれ
別の実施例を示す構造略図である。２０……ふ化
槽、２１……給水口、２５……外枠、２６……内
枠、２７……ブラケツト、３０……上部網棚、３
１……下部網棚、３４……清水通路、３５……下
部通路、４０……テーパー部、４５……整流板。 Figure 1 is a front view of a hatchery tank adopting the present invention, Figure 2 is a view taken in the direction of the arrow in Figure 1, Figure 3 is a view taken in the direction of the arrow in Figure 1, and Figure 4 is a cross-sectional view taken in the direction of Figure 3. , FIG. 5 is an enlarged view of the main part of FIG. 4, FIG. 6 is a partial view taken in the direction of the arrow in FIG. 9 and 10 are structural diagrams showing different embodiments, respectively. 20...Hatchling tank, 21...Water supply port, 25...Outer frame, 26...Inner frame, 27...Bracket, 30...Upper net shelf, 3
1... Lower net shelf, 34... Clear water passage, 35... Lower passage, 40... Taper part, 45... Current plate.

Claims

[Scope of Claim for Utility Model Registration] (1) In a hatching tank equipped with a mesh shelf for placing eggs to be hatched in a box-shaped body, the box-shaped body is constructed with a double structure of an outer frame and an inner frame, A hatching device characterized in that a support member for supporting the inner frame is provided on the inner surface of the outer frame, a lower net shelf is formed at the lower end of the inner frame, and a mounting part on which an upper net shelf made of a metal perforated plate is placed is formed on the inner frame. Tank. (2) In a hatching tank equipped with a mesh shelf for placing eggs to be hatched in a box-shaped body, the box-shaped body is constructed with a double structure of an outer frame and an inner frame, and clean water is poured from the entire periphery of the inner frame. A hatching tank characterized in that a continuous fresh water passage is formed between an outer frame and an inner frame over the entire circumference so as to supply water to the inside of the inner frame. (3) A fresh water inlet is formed in a part of the fresh water passage, a lower net shelf is provided on the lower surface of the inner frame, a lower passage connecting to the fresh water passage is formed between the lower net shelf and the outer frame, and the lower net shelf is opened from the lower passage. 2. The hatching tank according to claim 2, which is provided with a rectifier plate that generates a substantially uniform water flow over the entire surface. (4) In a hatching tank equipped with a net shelf for placing eggs to be hatched inside the box-shaped body, the box-shaped body has a double structure of an outer frame and an inner frame, and a resin net is attached to the lower end of the inner frame. What is claimed is: 1. A hatching tank characterized in that a lower net shelf made of resin net is formed, and a mounting part on which an upper net shelf made of resin net is placed is formed in the inner frame. (5) In a hatching tank equipped with a net shelf for placing eggs to be hatched inside the box-shaped body, the box-shaped body has a double structure of an outer frame and an inner frame, and a resin net is attached to the lower end of the inner frame. A lower net shelf made of resin net is formed, a mounting part on which an upper net shelf made of resin net is placed is formed in the inner frame, and the outer frame and the inner frame are connected so as to supply fresh water from the entire circumference of the inner frame to the inside of the inner frame. A hatching tank characterized by forming a continuous clear water passage around the entire circumference between the hatching tanks.