CN201247033Y

CN201247033Y - Portable measurer for interior diameter of fishing net bag and mesh

Info

Publication number: CN201247033Y
Application number: CNU2008201525685U
Authority: CN
Inventors: 张勋; 郁岳峰; 周爱忠; 冯春雷
Original assignee: East China Sea Fishery Research Institute Chinese Academy of Fishery Sciences
Current assignee: East China Sea Fishery Research Institute Chinese Academy of Fishery Sciences
Priority date: 2008-09-01
Filing date: 2008-09-01
Publication date: 2009-05-27
Anticipated expiration: 2018-09-01

Abstract

The utility model relates to a portable inner-diameter measuring device of wire meshes of a net gasbag of a fishing net, which relates to the measuring device of wire meshes of a fishing net. The utility model provides a portable and rapid measuring device for testing the inner diameters of wire meshes of a net gasbag of a fishing net on site, which comprises a rigid measuring rule, a spring pre-applied tenser and a handle casing. The utility model is characterized in that the appearance of the rule body of the rigid measuring rule is in a plane wedge shape, the wide end of the rule body is provided with two assembly holes, the front end of a spring pressure gauge is connected with a dead plate which is provided with a fixed hole, the cylinder of an adjacent dead plate is provided with a pressure flag line, a cylinder which is adjacent to one end of a spring is provided with a pressure sliding hole, a pin hole is arranged on the front portion of the handle casing, and the rear end is connected with a grab handle, the assembly holes of the rule body and the fixed hole of the spring-type pre-applied tenser are fixed by a bolt, and the spring pre-applied tenser is inserted in the handle casing, and an inserting pin is matched in the pin hole of the handle casing. The portable inner-diameter measuring device is used to measure the inner diameters of wire meshes of a net gasbag of a fishing net.

Description

Portable fishing net net keed order inside caliper

Technical field:

The utility model relates to fishing net mesh dimensional measurement utensil.

Background technology

Inner diameter of mesh is the key technical indexes of fishing net, also is important process content in the fishery law enforcement, relates to fishery conservation and sustainable development of fishery problem.Show that by the behavior test of fish after fish entered netting gear, its escape position overwhelming majority was at the net capsule position of netting gear to netting gear, escape be mainly juvenile fish.In order to discharge juvenile fish effectively; protect fishery resourses, about fishing sector has successively been worked out GB1179 " east, the minimum size of mesh of Huanghai Sea district trawlnet net capsule ", GB11780 " the minimum size of mesh of Nanhai District trawlnet net capsule " and SC4013-1983 standards such as " chord net net keed order minimum dimension are arranged ".The manufacturer of netting gear, fisheries administrative department and professional are according to above-mentioned standard, adopt in GB/T6964-1986 " fishing net mesh dimension measurement method " standard and stipulate, use the hard ruler and the vernier caliper of legal unit's system, measure inner diameter of mesh, measure simultaneously by stipulating that the tension force that is added in advance on each order pin should equal the deadweight of 250 meters ± 25 meters length of same material, specification netting twine in GB/T6965-2004 " the gear material test pacing items pre-tension " standard.The inner diameter of mesh measuring method of stipulating in above-mentioned two standards, the professional assists rib and can implement in Other Instruments equipment in the laboratory, but the trouble that operates, as being difficult to carry out at fishing boat and fishing port measurement.Also do not have a kind of light, inner diameter of mesh measuring appliance efficiently at present, thereby restricted Production Management of Fisheries, fisheries administrative department needs badly and wants a kind of on-the-spot measuring appliance that detects net keed order internal diameter that carry out

The utility model content

The purpose of this utility model provides a kind of portable, on-the-spot integral measuring utensil that detects fishing net net keed order internal diameter efficiently.

The technical solution of the utility model is made of rigidity gage, spring pre-tension device and handle housing, the chi body profile that it is characterized in that the rigidity gage is the plane wedge shape, chi body wedge shape gradient is 1/8, the width of the wide end of chi body is 4 times of narrow end width, 3 millimeters of chi body thicknesses, the wide end of chi body has 2 pilot holes; The chi surface from apart from narrow end edge 20 millimeters to the wide end of carpenters square body edge the number of division word mark of 30-90 millimeters of mint-marks between 40 millimeters, chi body both sides are the scale mark of 1 millimeter of scale spacing; 80 millimeters of compression spring free heights in the spring pre-tension device, 2 millimeters of spring steel wire diameters, active spring coils are 8 circles, maximum pressure 60N, and minimum pressure 20N, spring one end and spring pedestal are fixed, and the other end and spring pressure body are fixed; The spring pressure body is 27 millimeters of diameters, the cylinder that wall thickness is 2 millimeters, and its front end connects the fixed head that is shaped on fixed orifice, is shaped on the pressure mark line on the cylinder of contiguous fixed head, is shaped on the pressure sliding eye on the cylinder of adjacent springs one end; Handle housing is 32 millimeters of diameters, 2 millimeters of wall thickness, and the pipe that length is 150 millimeters is made, and the handle housing front portion is shaped on pin-and-hole, and the rear end connects lever; The fixed orifice bolt of the pilot hole of chi body and spring pre-tension device, spring pre-tension device inserts handle housing, and is equipped with latch in the pin-and-hole of handle housing.

The utility model is pressed the required standard of fishing net mesh dimension measurement method and gear material test pacing items pre-tension, can detect inner diameter of mesh quickly and easily at the scene, and the empirical tests test findings shows to have rationally reliable, practicable effect.

Description of drawings

What Fig. 1 represented is overall construction drawing of the present utility model.

That Fig. 2 represents is chi body structure figure.

What Fig. 3 represented is spring pre-tension device synoptic diagram.

What Fig. 3 represented is the handle housing synoptic diagram.

Embodiment

Below in conjunction with description of drawings embodiment of the present utility model:

The utility model (see figure 1) is the utensil that is used for fishing net net keed order inner diameter measurement, is made of rigidity gage 1, spring pre-tension device 2 and the handle housing 3 of mint-mark figure notation;

The chi body (see figure 2) of rigidity gage adopts rigid material to make, as resistant materials such as stainless steel, copper, aluminium alloy, alloy steels; The chi body profile is the plane wedge shape, and chi body wedge shape gradient is 1/8, and the width of the wide end of chi body is 4 times of narrow end width, and 3 millimeters of chi body thicknesses, 2 pilot holes 21 of the wide end system of chi body are used for being connected with the fixed head assembling of spring pre-tension device front end; The wide end of chi body is shaped on 50 millimeters lightening holes 22 of diameter can reduce the chi body weight, the chi body is circular arc for four jiaos, wide vertex angle part arc radius is 10 millimeters, and narrow vertex angle part arc radius is 5 millimeters, can avoid sharp edges to damage or cut off mesh order pin when inner diameter of mesh is measured; 20 millimeters inner diameter of mesh dip stick number of division word marks 23 to 30-90 millimeters of 40 millimeters mint-marks in the wide end of range arm body edge also have scale mark on the dip stick both sides from the narrow end of range arm body edge, and scale spacing is 1 millimeter; In order to keep the clear reading of being convenient to of chi face, the chi surface is coated with corrosion-inhibiting coating, can be in case seawater or other liquid corrosion;

Spring pre-tension device (see figure 3) adopts rigid material to make, as resistant materials such as stainless steel, alloy steel, aluminium alloys; Spring pre-tension device is made up of pressure device fixed head 32, pressure body 35, spring 36, spring pedestal 37, its medi-spring 36 is a compression spring, 80 millimeters of free heights, 2 millimeters of spring steel wire diameters, active spring coils is 8 circles, maximum pressure 60N, minimum pressure 20N, spring one end and spring pedestal 37 are fixing, and the other end and spring pressure body 35 are fixing; Spring pressure body 35 is 27 millimeters of diameters, the cylinder that wall thickness is 2 millimeters, its front end is connected and fixed plate 32, fixed head 32 is shaped on the fixed orifice 31 with the assembling of chi body, be shaped on pressure mark line 33 on the cylinder of spring pressure body 35 contiguous fixed heads 32, be shaped on pressure sliding eye 34 on the cylinder of spring pressure body 35 adjacent springs 36 1 ends;

The handle housing (see figure 4) adopts rigid material to make, as stainless steel, alloy steel, aluminium alloy or copper tubing; Handle housing 42 is by 32 millimeters of diameters, 2 millimeters of wall thickness, and the pipe that length is 150 millimeters is made; The handle housing front portion is shaped on pin-and-hole 41, and the handle housing rear end connects lever 43, and lever 43 adopts 25 millimeters of diameters, 2 millimeters pipes of wall thickness;

The pilot hole 21 (Fig. 2) of the wide end of chi body of the present utility model is used bolt with the fixed orifice 31 (Fig. 3) of spring pre-tension device, and with spring pre-tension device insertion handle housing, equipped latch promptly constitutes portable pressure type fishing net net keed order inside caliper in the pin-and-hole 41 (Fig. 4) of handle housing.

When measuring net keed order internal diameter, hand-held inner diameter of mesh measuring appliance, with the narrow end of measuring appliance chi body perpendicular to by the survey grid plate plane, along knotted netting vertically or the long axis direction of knotless netting insert mesh, pre-tension in accordance with regulations (GB/T6965-2004) is measured inner diameter of mesh, in the measurement till dip stick is lived by mesh.Dip stick be stuck the place width be this inner diameter of mesh, inner diameter of mesh numerical value should read above the order payment to a porter of mesh, pre-tension reads at the handle place.For guaranteeing to measure the accuracy of numerical value, measure 20 continuous inner diameter of mesh, its arithmetic mean is the inner diameter of mesh of this time measurement.

Claims

1, portable fishing net net keed order inside caliper, constitute by rigidity gage, spring pre-tension device and handle housing, the chi body profile that it is characterized in that the rigidity gage is the plane wedge shape, chi body wedge shape gradient is 1/8, the width of the wide end of chi body is 4 times of narrow end width, 3 millimeters of chi body thicknesses, the wide end of chi body has 2 pilot holes; The chi surface from apart from narrow end edge 20 millimeters to the wide end of carpenters square body edge the number of division word mark of 30-90 millimeters of mint-marks between 40 millimeters, chi body both sides are the scale mark of 1 millimeter of scale spacing; 80 millimeters of compression spring free heights in the spring pre-tension device, 2 millimeters of spring steel wire diameters, active spring coils are 8 circles, maximum pressure 60N, and minimum pressure 20N, spring one end and spring pedestal are fixed, and the other end and spring pressure body are fixed; The spring pressure body is 27 millimeters of diameters, the cylinder that wall thickness is 2 millimeters, and its front end connects the fixed head that is shaped on fixed orifice, is shaped on the pressure mark line on the cylinder of contiguous fixed head, is shaped on the pressure sliding eye on the cylinder of adjacent springs one end; Handle housing is 32 millimeters of diameters, 2 millimeters of wall thickness, and the pipe that length is 150 millimeters is made, and the handle housing front portion is shaped on pin-and-hole, and the rear end connects lever; The fixed orifice bolt of the pilot hole of chi body and spring pre-tension device, spring pre-tension device inserts handle housing, and joins latch in the pin-and-hole of handle housing.

2, portable fishing net net keed order inside caliper according to claim 1 is characterized in that the wide end of chi body is shaped on 50 millimeters lightening holes of diameter.

3, portable fishing net net keed order inside caliper according to claim 1 and 2 is characterized in that the chi body is circular arc for four jiaos, and wide vertex angle part arc radius is 10 millimeters, and narrow vertex angle part arc radius is 5 millimeters.

4, portable fishing net net keed order inside caliper according to claim 3 is characterized in that the chi surface is coated with corrosion-inhibiting coating.