CN212340720U - Accurate test device suitable for medium and small river large-mouth bed load - Google Patents
Accurate test device suitable for medium and small river large-mouth bed load Download PDFInfo
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- CN212340720U CN212340720U CN202020623684.1U CN202020623684U CN212340720U CN 212340720 U CN212340720 U CN 212340720U CN 202020623684 U CN202020623684 U CN 202020623684U CN 212340720 U CN212340720 U CN 212340720U
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Abstract
The utility model discloses a be applicable to accurate test device of medium and small river big mouthful of door bed load, including big mouthful of door bed load sample thief, bed load calibrator and shipborne linkage support. The utility model has the advantages that: the window door of the sampler can be closed by virtue of small external force, the collection of a water sample is completed, the lead blocks can be increased or decreased at will, when the flow rate is large, the dead weight of the sampler is increased, the stability of the sampler on a riverbed is maintained, the sampling is ensured to be real and reliable, the port door and the riverbed are completely attached, the disturbance effect on water and sand is reduced, obvious elutriation or siltation is not generated in front of the port door, and the authenticity of bed load sampling is ensured.
Description
Technical Field
The utility model relates to a test device specifically is a be applicable to accurate test device of big mouthful of bed load of middle and small river, belongs to hydrology silt test sample sampling equipment technical field.
Background
Sediment movement and scour deposition are important hydrological phenomena in rivers, as sediment has a great influence on the hydrological situation of rivers, river development and river bed evolution. The drift silt movement is another basic form of river transport silt. The load mass of silt is generally less than the load mass. However, in some upstream mountain rivers, the bed load tends to be large. Because the silt particles of the migration mass are thick, the silt particles often block reservoirs, irrigation channels and riverways, and are difficult to wash away, and the influence on the management and application, flood control, shipping and the like of hydraulic engineering is large. In order to research and master the motion law of the bed load, the method provides a basis for building ports, protecting riverways, building hydraulic engineering, designing and managing large reservoir gates and dams and the like, and therefore, the development of bed load tests is of great significance.
At present, the bed load test method is carried out on medium and small rivers in a few ways, and no visual instrument is used for carrying out bed load monitoring.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provide a device suitable for accurately testing the load of a medium-small river large-mouth door bed.
The utility model discloses a following technical scheme realizes above-mentioned purpose: a device suitable for accurately testing the load of a large-mouth door of a medium-small river comprises a large-mouth door load sampler, a load calibrator and a shipborne linkage bracket;
the large-opening door bed load sampler comprises a sampling barrel, wherein the tail end of the sampling barrel is provided with a front cover, the front end of the sampling barrel is provided with a rear cover, the upper ends of the front cover and the rear cover are connected with the sampling barrel through hinges, two beam plates are arranged above the sampling barrel and are arranged in parallel, the tail end of each beam plate and a connecting rod welded on the upper surface of the tail part of the sampling barrel are connected with a Shibijia hexagonal blue surface nut through a transverse inner hexagonal socket head cap screw, the beam plates and the connecting rod are directly provided with spacer sleeves, the front ends of the beam plates and a connecting seat welded on the upper surface of the front part of the sampling barrel are fixedly connected through vertical inner hexagonal socket head cap screws, the two front ends of the beam plates are connected with the Shibijia hexagonal blue surface nut through the transverse inner hexagonal socket head cap screws, and a sleeve is sleeved on the screw between the front ends of the two beam plates, the upper surface of the middle part of the sampling barrel is fixedly connected with a support through a screw, the top end of the support is rotatably connected with the middle part of a pull rod through a rotating shaft, a trigger plate is arranged between the middle parts of the two beam plates, and the beam plates are connected with a steel wire rope of a winch through a second headless pin shaft arranged in the middle part;
the bed load calibrator comprises a deposition box and a sealing cover, wherein the deposition box is in a conical shape, and the sealing cover is clamped at an opening at the top end of the deposition box;
the shipborne linkage support comprises a connection support frame, a movable rotating shaft and a ship welding support, wherein the two ends of a cross rod of the connection support frame are respectively connected with a second pulley in a rotating mode, a hand winch is installed on a vertical rod body of the connection support frame, a winch steel wire rope wound on the hand winch penetrates through the second pulley to be connected with a sampler, the bottom end of the connection support frame is connected with the ship welding support welded on a ship deck through the movable rotating shaft, and the top end of the connection support frame is connected with the ship deck through a ship fixing steel wire.
As a further aspect of the present invention: the front cover passes through a first pulley arranged in the middle of the connecting rod through a gate control steel wire and is connected with one end of the pull rod, and the other end of the pull rod is connected with a first headless pin shaft arranged on the beam plate through the gate control steel wire.
As a further aspect of the present invention: the rear cover penetrates through the sleeve through a gate control steel wire to be connected with a third headless pin shaft arranged on the crossbeam plate.
As a further aspect of the present invention: and a driving hammer with the weight of 0.5-1kg is arranged above the trigger plate and positioned between the winch steel wire rope and the sampler, and the trigger plate drives the first headless pin shaft and the third headless pin shaft to fall off through the driving of the driving hammer.
As a further aspect of the present invention: the sampling barrel is of a fluid structure.
As a further aspect of the present invention: the sampler main body formed by the sampling barrel and the cross beam plate is designed by adopting a balance principle.
As a further aspect of the present invention: lead blocks with different weights are placed on two sides of the sampling barrel according to the flow velocity.
As a further aspect of the present invention: the inlet of the sampling barrel is completely attached to the riverbed.
As a further aspect of the present invention: the sampling barrel, the cross beam plate, the trigger plate, the pull rod and the support are all made of high-strength stainless steel materials and are detachably connected in an assembling mode.
As a further aspect of the present invention: and the front cover and the rear cover are both provided with rubber sealing gaskets.
As a further aspect of the present invention: the side edges of the deposition box and the sealing cover are arc-shaped, square openings of 80cm multiplied by 60cm are dug below the two sides of the deposition box and 70cm away from the top edge, and small-hole filter screens are installed on the inner layer and the outer layer.
As a further aspect of the present invention: the fixed steel wire of ship is provided with two, and is the form connection of drawing to one side between the top of joint support frame and ship deck.
The utility model has the advantages that:
(1) the door closing mechanism can complete the closing of the window of the sampler by means of small external force to complete the collection of water samples;
(2) the appearance adopts a fluid structure, so that the water flow resistance and disturbance are reduced as much as possible, the original shape of the water body is obtained, and the sampling quality is improved;
(3) and the whole structure is designed by adopting a balance principle, so that the stability in the water body is enhanced. When the instrument is slightly placed to the river bottom, the interference to the sediment of the river bottom is small;
(4) the lead block can be increased or decreased at will, when the flow velocity is high, the dead weight of the instrument is increased, the stability of the instrument on a riverbed is kept, and the truth and reliability of sampling are ensured;
(5) the mouth of the sampler is completely attached to the riverbed, so that the disturbance effect on water and sand is reduced, obvious elutriation or siltation is not generated in front of the mouth, and the authenticity of bed load sampling is ensured;
(6) the novel high-strength stainless steel material is used in the sampler, the whole structure is coherent and compact, the sampling and the dismounting are convenient, and meanwhile, the practicability is enhanced due to the easy maintenance.
Drawings
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of the shipborne linkage structure of the present invention;
FIG. 4 is a schematic view of the overall structure of the bed load calibrator of the present invention;
fig. 5 is the utility model discloses bed load calibrator split structure schematic diagram.
In the figure: 1. sampling bucket, 2, first pulley, 3, horizontal hexagon socket head cap screw, 4, crossbeam board, 5, first headless round pin axle, 6, second headless round pin axle, 7, trigger plate, 8, third headless round pin axle, 9, vertical hexagon socket head cap screw, 10, pull rod, 11, support, 12, back lid, 13, sleeve, 14, execute and must firmly hexagonal socket head cap nut, 15, protecgulum, 16, the spacer sleeve, 17, second pulley, 18, hand winch, 19, ship fixed steel wire, 20, joint support frame, 21, activity pivot, 22, ship welding stand, 23, deposit box 23 and 24, sealed lid.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 5, an apparatus for accurately testing the load of a large-mouth bed of a medium or small river comprises a large-mouth bed load sampler, a bed load calibrator and a shipborne linkage support; the large-opening door bed load sampler is key equipment capable of acquiring river bed load; the bed load calibrator is used for verifying the capability and accuracy of the bed load sampler for obtaining samples, and can establish a correlation relationship if necessary so as to accurately obtain the river sediment displacement amount.
The large-opening door bed load sampler comprises a sampling barrel 1, wherein a front cover 15 is arranged at the front end of the sampling barrel 1, a rear cover 12 is arranged at the tail end of the sampling barrel 1, the upper ends of the front cover 15 and the rear cover 12 are connected with the sampling barrel 1 through hinges, two beam plates 4 are arranged above the sampling barrel 1, the two beam plates 4 are arranged in parallel, the tail end of each beam plate 4 and a connecting rod welded on the upper surface of the tail part of the sampling barrel 1 are connected with a Shibijia hexagonal flange nut 14 through a transverse inner hexagonal socket head cap screw 3, the beam plates 4 and the connecting rod are directly provided with a spacer sleeve 16, the front end of each beam plate 4 and a connecting seat welded on the upper surface of the front part of the sampling barrel 1 are fixedly connected through a vertical inner hexagonal socket head cap screw 9, and the front ends of the two beam plates 4 are connected with the Shibijiabijia hexagonal flange nut 14 through the transverse inner hexagonal socket head cap screw 3, and two the cover is equipped with and is provided with sleeve 13 on the screw between the crossbeam board 4 front end, the middle part upper surface of sampling bucket 1 is through screw fixedly connected with support 11, the top of support 11 rotates through the middle part of pivot and pull rod 10 to be connected, two install trigger plate 7 between the crossbeam board 4 middle part, crossbeam board 4 is connected with the wire rope of winch through the second headless round pin axle 6 that the middle part set up.
When the large-opening door bed load sampler is stably placed on a riverbed, the front cover 15 is opened, water flow carries the load sampler to continuously enter the load sampler, silt sinks due to dead weight, and the rear cover continuously drains water. The working principle of opening and closing the door of the large-opening door bed load sampler is as follows: the front cover door 15 is opened, the pull rod 10 is used, the bolt is used for fixing the front cover door, the sleeve 13 is used for opening the rear cover 12, when the door trigger plate 7 is opened by hammering, the linkage mechanism drives the bolt to fall off, the front door and the rear door are closed simultaneously, and high-quality rubber sealing gaskets are arranged on the front door and the rear door, so that the sampler has no leakage. And (5) opening the front door after the instrument is stranded out of the water surface, collecting a bed load sample, and circularly and repeatedly operating according to the method.
The bed load calibrator comprises a deposition box 23 and a sealing cover 24, wherein the deposition box 23 is in a conical shape, and the sealing cover 24 is clamped at the opening at the top end of the deposition box 23; in a relatively flat region (such as a shoal edge zone, the water depth is preferably less than 30cm) of a shallow sandy riverbed, the calibrator is embedded in the riverbed, the edge of the sediment box is flush with the surface of the riverbed, and after the sandy riverbed is basically restored, the calibrator is sealed and taken out, and is parallelly tested with the bed load sampler in a synchronous manner. If the moving mass is less, the test time can be prolonged, and the accuracy of the moving mass sampler for obtaining the sand amount is verified through comparison and observation in multiple time periods. For precision bed mass testing studies, the modification can be done by a ratiometric method.
The on-board linkage support comprises joint support frame 20, activity pivot 21 and ship welding stent 22, joint support frame 20's horizontal pole both ends are rotated respectively and are connected with second pulley 17, install hand winch 18 on joint support frame 20's the montant pole body, winding winch wire rope passes second pulley 17 and is connected with the sample thief on hand winch 18, joint support frame 20's bottom is connected with the ship welding stent 22 of welding on the ship deck through activity pivot 21, just joint support frame 20's top is connected with the ship deck through the fixed steel wire 19 of ship.
Further, in the embodiment of the utility model provides an in, protecgulum 15 passes the first pulley 2 of connecting rod mid-mounting through the gate steel wire and is connected with the one end of pull rod 10, and the other end of pull rod 10 is connected with the first headless round pin axle 5 of setting on crossbeam board 4 through the gate steel wire to the realization is opened protecgulum 15.
Further, in the embodiment of the present invention, the rear cover 12 passes through the sleeve 13 through the gate-controlled steel wire and is connected to the third headless pin 8 disposed on the beam plate 4, so as to open the rear cover 12.
Further, in the embodiment of the present invention, a hammer with a weight of 0.5-1kg is disposed above the trigger plate 7 and located between the winch cable and the sampler, and the trigger plate 7 drives the first headless pin 5 and the third headless pin 8 to fall off by striking with the hammer, so that the front cover 15 and the rear cover 12 of the sampler can be closed simultaneously by virtue of a small external force, and the collection of the water sample is completed.
Further, in the embodiment of the utility model provides an in, sampling bucket 1 appearance is fluid column structure, and minimize flow resistance and disturbance to acquire the water former state, improve sample quality.
Further, in the embodiment of the utility model provides an in, this sample thief main part that sample barrel 1 and crossbeam board 4 constitute adopts the design of balance principle, and the reinforcing is stability in the water, when the instrument is put gently to the river bottom, and is noiseless to river bottom silt.
Further, in the embodiment of the utility model provides an in, according to the lead of the different weight of velocity of flow placing in the sampling bucket 1, can increase and decrease the lead wantonly, when the velocity of flow is great, increase the instrument dead weight, keep the stability of instrument at the riverbed, ensure the true and reliable of sampling.
Further, in the embodiment of the utility model provides an in, the import that sampling bucket 1 was seted up is covered with the riverbed completely, has reduced the disturbing action to the water sand, does not produce obvious elutriation or siltation before the mouth, has guaranteed the authenticity of bed load sample.
Further, in the embodiment of the utility model provides an in, sampling bucket 1, crossbeam board 4, trigger plate 7, pull rod 10 and support 11 are and adopt high strength stainless steel material to make, and are detachable assembled joint, make overall structure run through compactly even, and the sample is dismantled conveniently, and easy to maintain maintains the maintenance simultaneously has strengthened the practicality.
Further, in the embodiment of the present invention, rubber gaskets are installed on the front cover 15 and the rear cover 12, so as to prevent the sampler from leaking after the front cover and the rear cover are closed.
Further, in the embodiment of the present invention, the side of the deposition box 23 and the sealing cover 24 is arc-shaped, and the both sides of the deposition box 23 are excavated to 80cm × 60cm below the top edge 70cm, and the small-hole filter net is installed on the inner and outer layers, so that the internal and external pressures are kept consistent, and the resistance to water flow is reduced, so as to ensure that the flow of water flow is not affected.
Further, in the embodiment of the utility model provides an in, the fixed steel wire 19 of ship is provided with two, and is to draw the form to one side and connect between joint support frame 20's top and ship deck, constitutes three-dimensional triangular pyramid column structure with joint support frame 20, improves the fastness that joint support frame 20 connects.
The working principle is as follows: when the device suitable for the accurate test of the load of the large-mouth door of the medium and small river is used, firstly, the cross beam plates 4 are assembled with the connecting rod and the connecting seat arranged on the upper surface of the sampling barrel 1 through the transverse inner hexagonal socket head cap screws 3 and the Shibijian hexagonal blue-face nuts 14, the headless pin shaft and the trigger plate 7 are arranged between the two cross beam plates 4, the cross beam plates 4 are connected with the steel wire rope of the winch through the second headless pin shaft 6 arranged in the middle, then the front cover 15 is connected with one end of the pull rod 10 through the first pulley 2 arranged in the middle of the connecting rod and the gate control steel wire, the other end of the pull rod 10 is connected with the first headless pin shaft 5 arranged on the cross beam plates 4 through the gate control steel wire, so as to open the front cover 15, the rear cover 12 is connected with the third headless pin shaft 8 arranged on the cross beam plates 4 through the gate control steel wire passing through the, open back lid 12 in order to realize, then at the shallow water sandy river bed relatively gentle region, in the pre-buried river bed of calibrator, and 23 edges of deposit case flush with the river bed surface, treat after the sandy river bed basic recovery state, take out sealed lid 24, when steadily putting the sample thief to the river bed through on-board linkage support simultaneously, rivers carry the leading edge of a matter instrument constantly to get into the instrument through the protecgulum 15 of opening, silt dead weight sinks, back lid 12 is constantly discharged water, after the sampling, hit trigger plate 7 through the hammer and drive first headless round pin axle 5 and third headless round pin axle 8 and drop, can realize that protecgulum 15 and back lid 12 are closed simultaneously, treat the instrument hank out the surface of water, open the qianmen, gather the bed of matter sample, repeat the operation with this circulation.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a be applicable to accurate testing device of medium and small river wide-mouth bed load which characterized in that: comprises a large-opening door bed load sampler, a bed load calibrator and a shipborne linkage bracket;
the large-opening door bed load sampler comprises a sampling barrel (1), wherein a front cover (15) is arranged at the front end of the sampling barrel (1), a rear cover (12) is arranged at the tail end of the sampling barrel (1), the upper ends of the front cover (15) and the rear cover (12) are connected with the sampling barrel (1) through hinges, a cross beam plate (4) is arranged above the sampling barrel (1), the cross beam plate (4) is arranged in parallel, the tail end of the cross beam plate (4) and a connecting rod welded on the upper surface of the tail part of the sampling barrel (1) are connected with a Shibi hexagonal flange nut (14) through a transverse inner hexagonal cylindrical head screw (3), a spacer sleeve (16) is directly arranged between the cross beam plate (4) and the connecting rod, the front end of the cross beam plate (4) and a connecting seat welded on the upper surface of the front part of the sampling barrel (1) are fixedly connected through a vertical inner hexagonal cylindrical head screw (9), the front ends of the two cross beam plates (4) are connected with a Shibijia hexagonal blue-face nut (14) through a transverse inner hexagonal cylindrical head screw (3), a sleeve (13) is sleeved on the screw between the front ends of the two cross beam plates (4), the upper surface of the middle of the sampling barrel (1) is fixedly connected with a support (11) through a screw, the top end of the support (11) is rotatably connected with the middle of a pull rod (10) through a rotating shaft, a trigger plate (7) is installed between the middle parts of the two cross beam plates (4), and the cross beam plates (4) are connected with a steel wire rope of a winch through a second headless pin shaft (6) arranged in the middle part;
the bed load calibrator comprises a deposition box (23) and a sealing cover (24), wherein the deposition box (23) is in a conical shape, and the sealing cover (24) is clamped at an opening at the top end of the deposition box (23);
the shipborne linkage support comprises a connecting support frame (20), a movable rotating shaft (21) and a ship welding support (22), wherein the two ends of a cross rod of the connecting support frame (20) are respectively connected with a second pulley (17) in a rotating manner, a hand winch (18) is installed on a vertical rod body of the connecting support frame (20), a winch steel wire rope wound on the hand winch (18) passes through the second pulley (17) to be connected with a sampler, the bottom end of the connecting support frame (20) is connected with the ship welding support (22) welded on a ship deck through the movable rotating shaft (21), and the top end of the connecting support frame (20) is connected with the ship deck through a ship fixing steel wire (19).
2. The device for accurately testing the load of the gate bed of the medium-small river according to claim 1, wherein: the front cover (15) passes through a first pulley (2) arranged in the middle of the connecting rod through a door control steel wire to be connected with one end of the pull rod (10), and the other end of the pull rod (10) is connected with a first headless pin shaft (5) arranged on the cross beam plate (4) through the door control steel wire.
3. The device for accurately testing the load of the gate bed of the medium-small river according to claim 1, wherein: the rear cover (12) is connected with a third headless pin shaft (8) arranged on the beam plate (4) through a gate control steel wire penetrating through the sleeve (13).
4. The device for accurately testing the load of the gate bed of the medium-small river according to claim 1 or 2, wherein: a hammer with the weight of 0.5-1kg is arranged between the winch steel wire rope and the sampler above the trigger plate (7), and the trigger plate (7) drives the first headless pin shaft (5) and the third headless pin shaft (8) to fall off through the striking of the hammer.
5. The device for accurately testing the load of the gate bed of the medium-small river according to claim 1, wherein: the sampling barrel (1) is of a fluid structure; the sampler main body formed by the sampling barrel (1) and the cross beam plate (4) is designed by adopting a balance principle; lead blocks with different weights are placed on two sides of the sampling barrel (1) according to the flow velocity.
6. The device for accurately testing the load of the gate bed of the medium-small river according to claim 1, wherein: the inlet of the sampling barrel (1) is completely attached to the riverbed.
7. The device for accurately testing the load of the gate bed of the medium-small river according to claim 1, wherein: rubber sealing gaskets are arranged on the front cover (15) and the rear cover (12).
8. The device for accurately testing the load of the gate bed of the medium-small river according to claim 1, wherein: sampling barrel (1), crossbeam board (4), trigger plate (7), pull rod (10) and support (11) are all to adopt high-strength stainless steel material to make, and are detachable assembled joint.
9. The device for accurately testing the load of the gate bed of the medium-small river according to claim 1, wherein: the side edges of the deposition box (23) and the sealing cover (24) are arc-shaped, square openings of 80cm multiplied by 60cm are dug below the two sides of the deposition box (23) which are 70cm away from the top edge, and small-hole filter screens are arranged on the inner layer and the outer layer.
10. The device for accurately testing the load of the gate bed of the medium-small river according to claim 1, wherein: the two ship fixing steel wires (19) are connected between the top end of the connecting support frame (20) and a ship deck in a diagonal pulling mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020623684.1U CN212340720U (en) | 2020-04-23 | 2020-04-23 | Accurate test device suitable for medium and small river large-mouth bed load |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020623684.1U CN212340720U (en) | 2020-04-23 | 2020-04-23 | Accurate test device suitable for medium and small river large-mouth bed load |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397959A (en) * | 2020-04-23 | 2020-07-10 | 长江水利委员会水文局荆江水文水资源勘测局（长江水利委员会水文局荆江水环境监测中心） | Accurate test device suitable for medium and small river large-mouth bed load |
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2020
- 2020-04-23 CN CN202020623684.1U patent/CN212340720U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397959A (en) * | 2020-04-23 | 2020-07-10 | 长江水利委员会水文局荆江水文水资源勘测局（长江水利委员会水文局荆江水环境监测中心） | Accurate test device suitable for medium and small river large-mouth bed load |
| CN111397959B (en) * | 2020-04-23 | 2024-04-30 | 长江水利委员会水文局荆江水文水资源勘测局（长江水利委员会水文局荆江水环境监测中心） | Accurate testing device suitable for middle and small river large gate bed load |
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