CN219302025U - Portable grab bucket type sediment sampler - Google Patents

Abstract

The utility model discloses a portable grab-type bottom mud sampler, which comprises a first grab, a second grab and a connecting piece. , the first grab includes the first grab sampling rod and the first iron ring, the bottom of the first grab sampling rod is fixedly connected to the middle position of the outer edge of the top of the first grab, and the middle fixed rod is fixed and horizontally erected inside the lock In the middle position, a movable buckle is connected to the movable sleeve on the middle fixed rod. The shape of the movable buckle is an "S"-shaped metal part. The two ends of the movable buckle are different in size, and the axis of the middle fixed rod is close to the smaller end; A steel wire is provided, and the two ends of the steel wire are respectively connected to the side edge of the first grab and the second grab at the bottom of the first grab sampling rod and the second grab sampling rod, and the middle of the steel wire is hung on the movable buckle on the small end. The portable grab-type sediment sampler is convenient for collecting mud, saves time and effort, and has high efficiency.

Description

A Portable Grab Type Sediment Sampler

technical field

The utility model relates to the technical field of samplers, in particular to a portable grab-type sediment sampler.

Background technique

Due to the discharge of production and domestic sewage, river ecological problems have always been difficult to control. In recent years, with the reduction of sewage discharge, the quality of water in rivers has been improved to a certain extent, but the sediment pollution of riverbeds in rivers is still serious, and the polluted sediment will cause long-term pollution to rivers, so it is urgent to The bed sediment in the river is sampled and monitored.

On the other hand, channel sediment is usually a mixture of clay, silt, organic matter and various minerals, which is deposited at the bottom of the water body after long-term physical, chemical and biological actions and water transport. Sediment sampling refers to sampling the mixture of organic and inorganic debris and soil in the ground. By analyzing the particle size of the obtained sediment and the distribution of pollutants, it provides scientific basis for hydrogeology, environmental protection, and ecological protection.

At present, there are few designs specifically for river bottom sediment sampling, which can be divided into two types. One is the drill pipe type, which uses a threaded extension rod to drill and sample; the other is the siphon type, which uses a hollow sampling tube with negative pressure inside. Prevent to the designated position, open the air port, and use negative pressure for sampling. When the above two sampling methods are used to sample the sediment, the sediment at the sampling position is obviously squeezed, which will destroy the original layered structure of the sediment, and at the same time, the sampling efficiency is low.

Utility model content

The purpose of this utility model is to provide a portable grab-type sediment sampler to solve the problem that the current river bottom sediment sampling device proposed in the above background technology will destroy the layered structure of sediment and have low sampling efficiency.

In order to achieve the above object, the utility model provides the following technical solutions: a portable grab-type sediment sampler, including a first grab, a second grab and a connecting piece, the first grab and the second grab open The direction is opposite and the upper parts of the two are hinged. The first grab includes the first grab sampling rod and the first iron ring. The bottom of the first grab sampling rod is fixedly connected to the middle position of the outer edge of the first grab top. The first The first iron ring is fixedly connected to the top port of the grab sampling rod, the second grab includes the second grab sampling rod and the second iron ring, and the middle position between the bottom of the second grab sampling rod and the outer edge of the second grab top is Fixed connection, the second iron ring is fixedly connected to the top port of the second grab sampling rod, the first grab sampling rod and the second grab sampling rod are inclined and crossed, the first iron ring and the second iron ring are respectively socketed At both ends of the chain, the middle of the chain is fixed with a buckle, and the upper part of the lower fixed rod is pulled by a connecting piece, wherein,

The lock is in the shape of a "U" as a whole, and the lock is movably connected to the chain through the fixing piece. The lock includes a middle fixed rod and a movable buckle. There is a movable buckle, the shape of the movable buckle is an "S" shaped metal piece, the two ends of the movable buckle are different in size, and the axis of the middle fixed rod is close to the smaller end;

The sampler is also provided with a steel wire, and the two ends of the steel wire are respectively connected to the first grab and the side edge of the second grab at the bottom of the first grab sampling rod and the second grab sampling rod, and the middle of the steel wire Hook on the smaller end of the active buckle.

Preferably, the connecting piece is hemp rope, and the hemp rope runs through both ends of the top of the buckle.

Preferably, the first grab further includes a rotating shaft and a fixing nut, the second grab includes a second grab sleeve, and the rotating shaft and the second grab sleeve are respectively arranged on top of the first grab and the second grab , the second grab sleeve is fixedly connected with the second grab, the rotating shaft runs through both sides of the top of the second grab sleeve and the first grab, and the two ends of the rotating shaft are threadedly fixed by fixing nuts.

Preferably, the inside of the first grab includes a first grab groove, the inside of the second grab includes a second grab groove, and the bottom heights of the first grab groove and the second grab groove are both less than two Or the height of the side edge of the bottom plate in the opening direction.

Preferably, the lock includes a lower fixing rod, a lower nut, a lower iron ring and an iron sheet, the iron sheet is provided with two pieces to form the two ends of the "U" shaped structure of the lock, and the bottom of the two iron sheets There is a lower iron ring connected between the two pieces of iron, and a middle fixed rod is detachably clamped in the middle of the two pieces of iron, and a movable buckle is sleeved on the middle fixed rod. The iron sheet described in the sheet, the two ends of the middle fixed rod are threadedly connected with lower nuts for fixing the middle fixed rod.

Preferably, the side walls of the first grab bucket and the second grab bucket are evenly provided with water holes, and the water holes communicate with the inside of the first grab bucket and the second grab bucket.

Compared with the prior art, the beneficial effect of the utility model is: the portable grab-type sediment sampler has a lock design, and the lock is composed of two long iron pieces and an "S-shaped" thick iron piece, and the S-shaped The two ends of the iron sheet are not equal in size. Before sampling, fasten the tight steel wire to the small head. The first and second grabs are fully opened, and then the sampler is slowly put into the river and lake and slowly lowered. Wait for sampling When the lock is in contact with the river bed, due to its own weight, the small end of the lock cannot lock the steel wire, the steel wire is loose, and the first and second grabs are no longer fully open; there are water holes on the sides of the first grab and the second grab , the design of the water hole facilitates the discharge of water during the process of pressing down and lifting the first grab and the second grab, which can effectively reduce the resistance of the water and improve work efficiency; the first grab and the second grab The interior of the bucket is designed with a slope, which greatly improves the sampling rate and the sampling volume; before sampling, just tighten the steel wire and lock the lock, the first and second grabs are opened, and when the sampler touches the river bed, The steel wire is released from the lock, the first grab and the second grab are closed, and the sampling is completed. The combination of the steel wire and the lock not only saves cost, but also facilitates mud mining, saves time and effort, and has high efficiency.

Description of drawings

Fig. 1 is a schematic diagram of the lateral axis of the utility model mud extractor;

Fig. 2 is a schematic diagram of the lateral axis of the lock of the mud extractor of the present invention;

Fig. 3 is a schematic diagram of the lateral axis of the first grab bucket of the utility model;

Fig. 4 is a schematic diagram of the lateral axis of the second grab bucket of the present invention.

Among the figure: 1, lock; 101, lower fixing rod; 102, lower nut; 103, lower iron ring; 104, iron sheet; 105, middle fixing rod; 106, movable buckle; 2, hemp rope; 3, chain; 4, the first grab; 401, the first grab sampling rod; 402, the first iron ring; 403, the rotating shaft; 404, the first grab groove; 405, the fixed nut; 5, the second grab; 501, The second grab sleeve; 502, the second grab groove; 503, the second grab sampling rod; 504, the second iron ring; 6, steel wire; 7, water hole.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-4, the utility model provides a technical solution: a portable grab-type sediment sampler, including a first grab 4, a second grab 5 and a connecting piece, the first grab 4 and the second grab The opening direction of the two grabs 5 is oppositely arranged and the upper parts of the two are hinged. The first grab 4 includes the first grab sampling rod 401 and the first iron ring 402, the bottom of the first grab sampling rod 401 and the top of the first grab 4 The middle position along the outer edge is fixedly connected, the first iron ring 402 is fixedly connected on the top port of the first grab sampling rod 401, the second grab 5 includes the second grab sampling rod 503 and the second iron ring 504, the second grab The bottom of the bucket sampling rod 503 is fixedly connected to the middle position along the outer edge of the second grab bucket 5 top, the second iron ring 504 is fixedly connected to the top port of the second grab bucket sampling rod 503, the first grab bucket sampling rod 401 and the second grab bucket The bucket sampling rod 503 is inclined and arranged crosswise, the first iron ring 402 and the second iron ring 504 are respectively sleeved on the two ends of the chain 3, the middle of the chain 3 is fixed with a lock 1, and the upper part of the lower fixed rod 101 is pulled by the connecting piece ,

The buckle 1 is in the shape of a "U" as a whole. The buckle 1 is movably socketed on the chain 3 through the fixing piece. The buckle 1 includes a middle fixed rod 105 and a movable buckle 106. The middle fixed rod 105 is fixed and horizontally erected in the middle of the inside of the buckle 1. position, the middle fixed rod 105 is movable sleeved with a movable buckle 106, the movable buckle 106 is shaped as an "S" shaped metal piece, the two ends of the movable buckle 106 have different sizes, and the axis of the middle fixed rod 105 is close to the smaller end;

The sampler is also provided with a steel wire 6, and the two ends of the steel wire 6 are respectively connected to the side edges of the first grab 4 and the second grab 5 at the bottom of the first grab sampling rod 401 and the second grab sampling rod 503. , the middle of steel wire 6 is hooked on the lesser end of movable buckle 106.

The working principle of this embodiment is: under normal conditions, the first grab bucket 4 and the second grab bucket 5 are closed under the influence of their own gravity. The middle is hooked on the smaller end of the movable buckle 106. Under the action of the tension of the steel wire 6, the first grab bucket 4 and the second grab bucket 5 are opened. At this time, the smaller end of the movable buckle 106 is under the action of the grab bucket. Rotate to the bottom, the preparatory work is completed, and then use the connecting piece to lower the whole device into the water. When the gravity of the first grab bucket 4 and the second grab bucket 5 is offset by the supporting force of the mud, the tension of the steel wire 6 disappears, and the movable buckle 106 is heavier at this time One end of the handle rotates to the bottom under the action of gravity, the steel wire 6 breaks away from the movable buckle 106, and the connecting piece is pulled, so that the first grab bucket 4 and the second grab bucket 5 can be closed for sampling work.

As an embodiment, preferably, the connecting piece is hemp rope 2, and the hemp rope 2 runs through both ends of the top of the buckle 1. Using the hemp rope 2 as the connecting piece can reduce the cost and have better flexibility while playing a traction effect.

Preferably as an embodiment, the first grab 4 also includes a rotating shaft 403 and a fixing nut 405, the second grab 5 includes a second grab sleeve 501, and the rotating shaft 403 and the second grab sleeve 501 are respectively arranged on the first grab The top of the bucket 4 and the second grab 5, the second grab sleeve 501 and the second grab 5 are fixedly connected, and the rotating shaft 403 runs through the top sides of the second grab sleeve 501 and the first grab 4, and the rotating shaft 403 The two ends of the two are fixed by fixing nuts 405. The first grab 4 and the second grab 5 can rotate under the action of the rotating shaft 403 and the second grab sleeve 501 to form a grab. At the same time, the design of the sleeve 501 It can make the upper part of the grab more compact.

Preferably as an embodiment, the inside of the first grab 4 includes a first grab groove 404, the inside of the second grab 5 includes a second grab groove 502, the first grab groove 404 and the second grab groove The height of the bottom of 502 is less than the height of the side edge of the bottom plate in the opening direction of the two, so that when the first grab groove 404 and the second grab groove 502 are closed, the silt can be effectively stored in the groove.

Preferably as an embodiment, the buckle 1 includes a lower fixing rod 101, a lower nut 102, a lower iron ring 103 and an iron sheet 104, and the iron sheet 104 is provided with two pieces to form the two ends of the "U" shape structure of the buckle 1. A lower iron ring 103 is connected between the bottoms of the iron sheets 104, and a middle fixed rod 105 is detachably clamped in the middle of the two iron sheets 104, and a movable buckle 106 is sleeved on the middle fixed rod 105, and the middle fixed rod 105 is issued A lower fixed rod 101 is provided, and the lower fixed rod 101 runs through two iron sheets 104. The two ends of the middle fixed rod 105 are threadedly connected with a lower nut 102 for fixing the middle fixed rod 105. The lower fixed rod 101 and the lower iron ring 103 are convenient Connected to the round hole of the lock chain 3, the above-mentioned design facilitates disassembly and maintenance of the lock buckle 1 at the same time.

Preferably as an embodiment, the side walls of the first grab 4 and the second grab 5 are evenly provided with water holes 7, and the water holes 7 communicate with the inside of the first grab 4 and the second grab 5, and the water flow The design of the hole 7 can reduce the water resistance of the grab bucket during its descent, and avoid the rope 2 from deviating from the target point due to the existence of water resistance.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a portable grab bucket formula bed mud sampler, includes first grab bucket (4), second grab bucket (5) and connecting piece, its characterized in that: the first grab bucket (4) and the second grab bucket (5) are oppositely arranged in the opening direction, the upper parts of the two grab bucket and the second grab bucket are hinged, the first grab bucket (4) comprises a first grab bucket sampling rod (401) and a first iron ring (402), the bottom of the first grab bucket sampling rod (401) is fixedly connected with the middle position of the outer side edge of the top of the first grab bucket (4), the first iron ring (402) is fixedly connected to the top port of the first grab bucket sampling rod (401), the second grab bucket (5) comprises a second grab bucket sampling rod (503) and a second iron ring (504), the bottom of the second grab bucket sampling rod (503) is fixedly connected with the middle position of the outer side edge of the top of the second grab bucket (5), the second iron ring (504) is fixedly connected to the top port of the second grab bucket sampling rod (503), the first iron ring (402) and the second iron ring (504) are obliquely and crosswise arranged, the first iron ring (402) and the second iron ring (504) are respectively sleeved at two ends of a lock chain (3), the middle part (3) of the lock chain (3) is fixedly connected with the lower part (101) through a traction part,

the lock catch (1) is integrally U-shaped, the lock catch (1) is movably sleeved on the lock chain (3) through a fixing piece, the lock catch (1) comprises a middle fixing rod (105) and a movable buckle (106), the middle fixing rod (105) is fixedly and transversely erected in the middle position inside the lock catch (1), the movable buckle (106) is movably sleeved on the middle fixing rod (105), the movable buckle (106) is in an S-shaped metal piece, the two ends of the movable buckle (106) are different in size, and the axis of the middle fixing rod (105) is close to the smaller end;

the sampler is characterized in that a steel wire (6) is further arranged on the sampler, two ends of the steel wire (6) are respectively connected to the side edges of the first grab bucket (4) and the second grab bucket (5) at the bottom positions of the first grab bucket sampling rod (401) and the second grab bucket sampling rod (503), and the middle of the steel wire (6) is connected to the smaller end of the movable buckle (106) in a hanging mode.

2. A portable grab type sediment sampler according to claim 1, characterized in that: the connecting piece is a hemp rope (2), and the hemp rope (2) penetrates through two ends of the top of the lock catch (1).

3. A portable grab type sediment sampler according to claim 1, characterized in that: the first grab bucket (4) further comprises a rotating shaft (403) and a fixing nut (405), the second grab bucket (5) comprises a second grab bucket sleeve (501), the rotating shaft (403) and the second grab bucket sleeve (501) are respectively arranged at the tops of the first grab bucket (4) and the second grab bucket (5), the second grab bucket sleeve (501) and the second grab bucket (5) are fixedly connected, the rotating shaft (403) penetrates through the second grab bucket sleeve (501) and the two sides of the top of the first grab bucket (4), and the two ends of the rotating shaft (403) are fixed through the fixing nut (405) through threads.

4. A portable grab type sediment sampler according to claim 1, characterized in that: the first grab bucket (4) comprises a first grab bucket grab groove (404) inside, the second grab bucket (5) comprises a second grab bucket grab groove (502) inside, and the heights of the bottoms of the first grab bucket grab groove (404) and the second grab bucket grab groove (502) are smaller than the heights of the bottom plate side edges in the opening directions of the first grab bucket grab groove and the second grab bucket grab groove.

5. A portable grab type sediment sampler according to claim 1, characterized in that: the utility model provides a hasp (1) is including lower part dead lever (101), lower part nut (102), lower part hoop (103) and iron sheet (104), and iron sheet (104) are equipped with two, constitute the both ends of hasp (1) "U" shape structure, two be connected with lower part hoop (103) between the bottom of iron sheet (104), two the middle detachable joint of iron sheet (104) has middle part dead lever (105), has cup jointed movable buckle (106) on middle part dead lever (105), and middle part dead lever (105) are issued and are provided with lower part dead lever (101), and lower part dead lever (101) run through two iron sheet (104), the both ends threaded connection of middle part dead lever (105) has lower part nut (102) for fixed middle part dead lever (105).

6. A portable grab type sediment sampler according to claim 1, characterized in that: the side walls of the first grab bucket (4) and the second grab bucket (5) are uniformly provided with water holes (7), and the water holes (7) are communicated with the inside of the first grab bucket (4) and the inside of the second grab bucket (5).

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