Connecting structure of crab cage and breeding rope

Abstract

The invention provides a connecting structure of a crab cage and a breeding rope, and belongs to the technical field of aquaculture equipment. The connecting structure solves the technical problem that an existing crab cage cannot be automatically recycled. A branch rope is connected to the crab cage. The connecting structure comprises a hook and an annular ferrule arranged at the end of the branch rope. The hook comprises a connecting block and a sleeve, the connecting block is fixedly connected to the breeding rope, a lock rod is slidably arranged in the sleeve, the inner end of the lock rodis inserted in the sleeve, the outer end of the lock rod stretches out of the lower end of the sleeve, a pull rope is connected to the connecting block, one end of the pull rope is connected with thelock rod, and a compression spring is arranged in the sleeve; one side of the sleeve is provided with a connecting rod which is bent in an arc shape downwards obliquely, the lower end of the connecting rod is bent towards the portion under the sleeve, a vertical through hole is formed in the outer circumferential face of the end of the connecting rod, the annular ferrule sleeves the connecting rod, and the outer end of the lock rod can be inserted in the through hole. By means of the connecting structure, automatic recycling of the crab cage and crabs is facilitated, and the connecting structure is convenient to use, stable and efficient.

Description

technical field [0001] The invention belongs to the technical field of aquaculture equipment, and relates to a connection structure of a crab cage, in particular to a connection structure of a crab cage and a culture rope. Background technique [0002] Crabs are crustaceans of the decapod brachycephalic suborder. There are many types of crabs, and most of them are edible. Crab shells can be used to extract industrial raw materials chitin and glucosamine. Crab larvae or adults can be used as bait and feed; edible crabs mainly include Portunus trituberculatus, Portunus pelagics, blue crabs, and Chinese mitten crabs; the use of crab cages to breed crabs has become an important and mature culture. Means: Portunus trituberculatus has a lot of meat, is plump and nutritious, and is an important economic crab in my country's coastal areas, and is also the main fishing target of my country's crab pot fishing boats. During the fishing operation of crab pot fishing boats, the unloading...

AI Technical Summary

Problems solved by technology

[0005] The automatic grasping device for crab cages in the above-mentioned patent documents has complex structure, high manufacturing cost, and inconvenient use

Although a single crab cage no longer needs to be manually opened by manually opening the lock of the hook, the design of the connection structure between the crab cage and the breeding rope is not convenient for the use of electromechanical equipment to automate the removal of a large number of crab cages, which affects the efficiency of aquatic products.

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