CN1353299A

CN1353299A - Silt sampler

Info

Publication number: CN1353299A
Application number: CN 01138310
Authority: CN
Inventors: 薛怀平; 易朝路
Original assignee: Institute of Geodesy and Geophysics of CAS
Current assignee: Institute of Geodesy and Geophysics of CAS
Priority date: 2001-12-18
Filing date: 2001-12-18
Publication date: 2002-06-12
Anticipated expiration: 2021-12-18
Also published as: CN1140786C

Abstract

A silt sampler for river, sea or lake is composed of a tripod as its supporter, a central slide track, a spring at the lower end of slide track, telescopic three-lobe locking bolt arranged on the spring, a counter weight at upper end of locking bolt sliding up and down along the slide track, a weighting ring linked to the said counter weight, a sampling tube passing through the center of the said tripod, and a check valve connected to top end of the said sampling tube. Its advantages include low gravitation center, high stability, not damaging sampling tube easily, and high power for inserting the said sampling tub into silt.

Description

A kind of silt sampler

Technical field:

The present invention relates to a kind of silt sampler.This device is applicable to that hundred meters of the depth of waters are with interior water-bed column silt sample collecting.

Background technology:

A kind of hundred meters deep water sediment samplers that use at present such as the utility model patent (patent No.: be a plummet railway carriage or compartment shell to be installed 00255990.0) on the top of sampling pipe, stabilizer is installed in bottom at sampling pipe, the plummet that can be free to slide is placed by the central authorities in plummet railway carriage or compartment, spur weight by rope, stopple coupon is squeezed into gathered silt in the silt.Its weak point is:

1, since sampling pipe generally more than 2 meters, the center of gravity of whole device is at the top, too high center of gravity causes sampling pipe to rock easily, fracture or damage.

2, the center of gravity of sampling apparatus is too high, and whole device is an elongated shape, makes that sampling pipe is difficult to vertically insert in the silt in the deepwater work of reality.

3, the sampling pipe stress point is on the top, and whole device rocks easily during sledgehammer strike, and after the sampling pipe buffering, the strength of squeezing into silt is weakened.

Summary of the invention:

The objective of the invention is, provide a kind of with tripod in the water body bottom supporting, center of gravity is low, it is little to rock, sampling pipe is difficult for impairedly, and vertical easily the insertion in the silt squeezed into the strong silt sampler of silt ability.This device is applicable to that hundred meters of the depth of waters are with interior water-bed column silt sample collecting.

In order to achieve the above object, the present invention adopts following technical scheme: tripod supports whole device, and three vertical, equally distributed parallel sliding tracks with the tripod baseplane are installed in the tripod center, and the two ends of slide rail link to each other with tripod; The internal diameter of sampling pipe is 2～11 centimetres a hollow double-strength pipe, is placed in the center of slide rail, and parallel with slide rail, the top of sampling pipe is connected with one-way cock, the sampling pipe drag rope of ining succession at the sampling pipe top; The bottom of slide rail is with spring, and spring is placed on the center of tripod bottom; The pipe clamp lock is the cannulated right cylinder, and there is bulge loop position of outer ring in the middle of it, and the top of pipe clamp lock is the dome cone, form by the three lobe dead bolts that can shrink, spacing is 2～10 millimeters between the three lobe dead bolts, and three slide rails pass the dead bolt slide rail hole of three dead bolts, and the pipe clamp lock is placed on the spring; Top the linking to each other of pipe clamp lock with weight, weight is the cannulated right cylinder, there is bulge loop position of outer ring in the middle of it, be used to support the weighting ring on it, the bottom is recessed cone, along cylindrical height three equally distributed slide rail holes are arranged, three slide rails pass three slide rail holes, the weight drag rope of ining succession above the weight; Be with 1～5 weighting ring on the weight, weighting ring is supported by the weight bulge loop; All there is circular port at the center of above-mentioned spring, pipe clamp lock, weight and weighting ring, and sampling pipe can pass above-mentioned circular port.

The present invention compared with prior art has easy to operately, and center of gravity is low, rocks for a short time, and sampling pipe is difficult for impaired, and sampling pipe is vertical easily, squeezes into advantages such as the silt ability is strong.

Description of drawings:

Fig. 1 is a longitudinal profile of the present invention synoptic diagram.

Fig. 2 is the longitudinal profile synoptic diagram that sampling pipe top one-way cock amplifies.

Fig. 3 is the longitudinal diagram that sampling pipe clamp lock dead bolt amplifies.

Embodiment:

Below in conjunction with accompanying drawing, structure, mutual relationship and function to each parts of the present invention are further described, and elaborate the specific embodiment of the present invention: as shown in Figure 1, silt sampler supports 5 by the tripod of this device, tripod 5 had both played the effect of supporting whole device, also make sampling pipe 4 perpendicular to tripod 5 baseplanes when sampling apparatus is placed on the bottom, sampling pipe 4 can be perpendicular to water-bed bottom surface; Install in tripod 5 centers three with vertical, the equally distributed parallel sliding track 6 in tripod 5 baseplanes, the two ends of slide rail 6 link to each other with tripod 5; The internal diameter of sampling pipe 4 is 2～11 centimetres a hollow double-strength pipe, be placed in the center of slide rail 6, also vertical with tripod 5 baseplanes, the top of sampling pipe 4 is connected with the one-way cock 3 that can only discharge air or water, the sampling pipe drag rope 1 of ining succession below sampling pipe 4 tops, one-way cock 3; The bottom of slide rail 6 is with spring 10, and spring 10 is placed on the center of tripod 5 bottoms; Pipe clamp lock 9 is the cannulated right cylinder, there is bulge loop position of outer ring in the middle of it, be the spacing overlap of latch bolt spring, be used to push down the spring 10 under it, the top of pipe clamp lock 9 is the dome cone, is made up of the three lobe dead bolts 11 that can shrink, spacing is 2～10 millimeters between the three lobe dead bolts, article three, slide rail 6 passes the dead bolt slide rail hole of three dead bolts 11, and pipe clamp lock 9 is placed on the spring 10, and can move on slideway 6; Top and the weight 8 of pipe clamp lock 9 links to each other, weight 8 is the cannulated right cylinder, there is bulge loop position of outer ring in the middle of it, be used to support the weighting ring 7 on it, the bottom is recessed cone, along cylindrical height three equally distributed slide rail holes is arranged, and three slide rails 6 pass three slide rail holes, weight 8 can freely slide up and down on slide rail 6, the weight drag rope 2 of ining succession above the weight 8; Be with 1～5 weighting ring 7 on the weight 8, weighting ring 7 is supported by weight 8 bulge loops, and weighting ring 7 is in order to increase the weight of weight 8, and the number of control weighting ring 7 is the strength that may command sampling pipe 4 is squeezed into silt; All there is circular port at the center of above-mentioned spring 10, pipe clamp lock 9, weight 8 and weighting ring 7, and sampling pipe 4 can pass above-mentioned circular port.When weight 8 is freely fallen above the sampling pipe clamp lock 9 from tripod 5 upper ends when, because surface of contact is the inclined-plane, pressure will be broken down into inside pressure and downward impulse force, and inside pressure is used for locking sampling pipe 4, and downward impulse force is squeezed into sampling pipe 4 in the silt, and the one-way cock 3 that passes through sampling pipe 4 tops is discharged empty G﹠W, after weight 8 is mentioned by weight drag rope 2, sampling pipe clamp lock 9 will unclamp automatically, under the effect of spring 10, move up, begin next hammering process.Sampling pipe drag rope 1 can be used as the tolerance of the degree of depth that sampling pipe 4 is driven into, and determines that by the submerged depth of observing sampling pipe drag rope 1 sampling pipe 4 squeezes into the length of silt.After sampling is finished, pull up whole device by sampling pipe drag rope 1 and weight drag rope 2, the silt of adopting will be raised with sampling pipe 4 because sampling pipe 4 is airtight by unidirectional valve 3, and sampling pipe 4 internal pressures are low this moment.

As shown in Figure 2, the cavity 13 of one-way cock is a up big and down small hollow cavity, steel ball 12 is put into cavity 13, baffle plate 14 be placed in cavity 13 above, in case steel ball 12 drops out cavity 13, gib screw 15 is fixed baffle plate 14, valve body 17, clamping ring 18 as a whole, and screw 19 is used for fixing clamp ring 18 and clamps sampling pipes.When sampling, to enter silt in the sampling pipe 4, sampling pipe 4 internal pressures increase, with steel ball 12 liftings, drainage water and pressure, after sampling finished, the internal pressure of sampling pipe 4 reduced, steel ball 12 is airtight with the bottom of this cavity under the pressure in the gravity and the external world, makes extraneous gas or shipwreck to enter into sampling pipe inside.

As shown in Figure 3, dead bolt slide rail hole 20 is up big and down small cavitys, being convenient to when pressure acts on inclined-plane 21, dead bolt top under the effect of sampling pipe clamp lock dead bolt at interior shear force the top moves to sampling pipe, compress sampling pipe, the bulge loop 22 of pipe clamp lock outer ring is the spacing overlap of latch bolt spring, is used to push down the spring under it.

Claims

1, a kind of silt sampler is characterized in that, this device is supported by tripod (5), and three vertical, equally distributed parallel sliding tracks with the tripod baseplane (6) are installed in tripod (5) center, and the two ends of slide rail (6) link to each other with tripod (5); The internal diameter of sampling pipe (4) is 2 to 11 centimetres a hollow double-strength pipe, is placed in the center of slide rail (6), and is parallel with slide rail (6), and the top of sampling pipe (4) is connected with one-way cock (3), the sampling pipe drag rope (1) of ining succession at sampling pipe (4) top; The bottom of slide rail (6) is with spring (10), and spring (10) is placed on the center of tripod (5) bottom; Pipe clamp lock (9) is the cannulated right cylinder, there is bulge loop (22) position of outer ring in the middle of it, the top of pipe clamp lock (9) is the dome cone, form by the three lobe dead bolts (11) that can shrink, spacing is 2～10 millimeters between the three lobe dead bolts (11), article three, slide rail (6) passes the dead bolt slide rail hole (20) of three dead bolts (11), and pipe clamp lock (9) is placed on the spring (10); Top and the weight (8) of pipe clamp lock (9) links to each other, weight (8) is the cannulated right cylinder, there is bulge loop position of outer ring in the middle of it, be used to support the weighting ring (7) on it, the bottom is recessed cone, along cylindrical height three equally distributed slide rail holes are arranged, three slide rails pass three slide rail holes, the weight drag rope (2) of ining succession above the weight; Be with 1～5 weighting ring (7) on the weight (8), weighting ring (7) is supported by weight (8) bulge loop; All there is circular port at the center of above-mentioned spring (10), pipe clamp lock (9), weight (8) and weighting ring (7), and sampling pipe (4) passes circular port.