Underwater sludge sampling device

Abstract

An underwater sludge sampling device comprises a plurality of hollow sampling rods, a sampling cylinder mechanism, a soft inhaul cable, a fixing plate and a handle mechanism, the plurality of sampling rods are movably sleeved together, the inhaul cable is sleeved on the inner sides of the plurality of sampling rods, and the lower end of the third sampling rod is mounted at the upper end of the fixing plate; the sampling cylinder mechanism comprises a pull arm, a sampling bin and a transverse pull plate which are hinged together, a hinge hole is formed in the upper end of the transverse pull plate, the lower end of a steel wire rope is mounted in the hinge hole, and a return spring sleeves the steel wire rope between the upper end of the transverse pull plate and the outer side of the lower end of a third pull rod; the handle mechanism comprises a mounting plate, a handle, a hand lever and a limiting seat which are mounted together, and the upper end of a steel wire rope of the soft inhaul cable and the upper end of the handle are mounted together. According to the utility model, convenience is brought to use and storage; sludge in a sampling area can be effectively clamped in the two sampling bins, and due to the fact that the lower ends of the two sampling bins are of a relatively closed structure after sampling, the sludge is prevented from leaking out after sampling, and the sludge sampling effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling equipment, in particular to an underwater sludge sampling device. Background Art

[0002] In order to achieve water quality testing in relevant areas, environmental protection departments and manufacturers need to sample the sludge under the water surface, and then send the sampled sludge to the laboratory for physical and chemical analysis to obtain various data of the sludge in the corresponding sampling area (such as pH value, bulk density, particle size, organic matter content, heavy metals, etc.).

[0003] Existing sludge sampling equipment generally consists of a sampling rod and a sampling canister, with the sampling canister located at the lower end of the rod. During sampling, the sampler holds the rod and inserts the canister into the sludge below the water surface. The sludge then enters the canister, which has an open lower end. The sampler then lifts the canister out of the water and uses other equipment (such as a pry bar) to remove the sludge from the canister, completing the sampling process. While existing sludge sampling equipment meets sludge sampling needs to a certain extent, its structural limitations result in several technical shortcomings that require urgent improvement. First, the operating rod is fixed, making it relatively long to sample sludge in deeper waters. This length makes it inconvenient to carry and store. Second, the lower end of the sampling canister is open. When inserted into the sludge, the weight of the water, the sludge itself, or the high moisture content of the sludge can cause sludge to leak out of the canister after collection. Utility Model Content

[0004] In order to overcome the drawbacks of existing sludge sampling equipment due to structural limitations as described in the background technology, the present invention provides a new underwater sludge sampling device that provides a sampling rod that can be easily retracted or extended, which brings convenience to use and storage. The lower end of the sampling chamber is a closed structure after sampling, which prevents sludge from leaking after sampling, thereby correspondingly improving the sludge sampling effect.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The cam is secured to the bottom of the drawer and is secured to a position 400 meters high when the cam is engaged with the bolt, and the cam is secured to the bottom of the drawer. The upper end of the plate; the sampling tube mechanism includes a pulling arm, a sampling chamber, and a horizontal pulling plate. There are two pulling arms and two sampling chambers respectively. The upper end of the sampling chamber is equipped with a support rod. The upper ends of the two support rods are respectively hingedly installed on both sides of the front lower end of the fixed plate. The lower inner sides of the two pulling arms are respectively hingedly installed with the middle parts of the outer sides of the two support rods, and the middle parts of the two pulling arms are respectively hingedly installed on both sides of the front middle of the fixed plate; the upper ends of the two pulling arms are respectively hingedly installed on both sides of the lower end of the horizontal pulling plate, the upper end of the horizontal pulling plate has a hinge hole, the lower end of the steel wire rope is installed in the hinge hole, and a return spring is provided on the outer side of the steel wire rope between the upper end of the horizontal pulling plate and the outer side of the lower end of the third pulling rod; the handle mechanism includes a mounting plate, a handle, a hand rod, and a limit seat. The upper end of the hand rod is installed on one side of the lower end of the mounting plate, the upper part of the sleeve of the soft pull cable is installed on one side of the upper end of the mounting plate through the limit seat, the middle of the handle is rotatably installed on the other side of the mounting plate, and the upper end of the steel wire rope of the soft pull cable and the upper end of the handle are installed together.

[0007] Preferably, the outer diameter of the sleeve is larger than the inner diameter of the guide hole, and the outer diameter of the wire rope is smaller than the inner diameter of the guide hole.

[0008] Preferably, the inner end of the sampling chamber is an open structure and the lower end is a sloped structure.

[0009] Preferably, after the inner ends of the two sampling chambers are in contact with each other, the lower ends of the two sampling chambers form a conical structure.

[0010] Preferably, when the spring is not in a compressed state, there is a distance between the inner sides of the two sampling chambers.

[0011] Preferably, the inner diameter of the first sampling rod is larger than the outer diameter of the second sampling rod, and the inner diameter of the second sampling rod is larger than the outer diameter of the third sampling rod.

[0012] Compared with the prior art, the present invention has the following advantages: (1) the three sampling rods can be conveniently extended or shortened and then fixed with nuts, which makes use and storage more convenient; (2) when sampling, the sampling personnel holds the upper end of the sampling rod with one hand, and then inserts the lower ends of the two sampling chambers into the sampling area below the water surface, and holds the handle with the other hand. In this way, the handle will pull the wire rope upward, and the distance between the two sampling chambers will be shortened, so that the sludge in the sampling area can be effectively clamped in the two sampling chambers. Since the lower ends of the two sampling chambers are relatively closed structures after sampling, the sludge is prevented from leaking out after sampling, thereby improving the sludge sampling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a partial structural diagram of the utility model. DETAILED DESCRIPTION

[0016] Figure 1 、 2As shown in, an underwater sludge sampling device includes a hollow sampling rod, a sampling tube mechanism, a soft cable (a soft brake line of a bicycle or electric bicycle, etc.), a fixing plate 2, and a handle mechanism. There are three sampling rods (not limited to three). The right end of the first sampling rod 31 and the second sampling rod 32 has a rectangular guide groove 4 from top to bottom. A limit bolt 5 is horizontally welded to the right side of the upper end of the second sampling rod 32 and the third sampling rod 33. The second sampling rod 32 and the third sampling rod 33 are respectively slidably sleeved on the inner side of the first sampling rod 31 and the second sampling rod 32. The second sampling rod 31 and the third sampling rod 32 are respectively slidably sleeved on the inner side of the second sampling rod 31 and the second sampling rod 32. The bolts 5 of the sampling rod 32 and the third sampling rod 33 are respectively located in the guide grooves 4 of the first sampling rod 31 and the second sampling rod 32. The right side of each bolt 5 is located outside the right end of the guide groove and is screwed into a manual nut 6 with an outer diameter larger than the outer diameter of the guide groove; there is a wire seat 7 on the right side of the upper end of the first sampling rod, and a manual bolt A8 is screwed into the wire seat; the lower end of the third sampling rod 33 is a closed structure with a guide hole in the middle. The soft cable is sleeved on the inner side of the three sampling rods and the lower end of the sleeve 101 outside the soft cable is located at the upper end of the guide hole. The steel inside the soft cable The lower end of the wire rope 102 is led out to the outside of the lower end of the third sampling rod 33 through the guide hole, and the rear outer side of the third sampling rod 33 is welded to the middle part of the upper end of the fixed plate 2; the sampling tube mechanism includes a pulling arm 91, a sampling chamber 92, and a horizontal pulling plate 93. There are two pulling arms 91 and two sampling chambers 92 respectively. A support rod 94 is vertically welded to the outside of the middle part of the upper end of the sampling chamber 92. The inner end of the sampling chamber 92 is an open structure and the lower end is an inclined structure 921. The support rods at the upper ends of the two sampling chambers 92 are hingedly installed on both sides of the middle part of the front lower end of the fixed plate 2 at a distance from each other. The lower ends of the two pulling arms 91 are respectively The inner sides are hingedly mounted together with the middle parts of the outer sides of the two support rods 94, and the middle parts of the two pulling arms 91 are hingedly mounted on the left and right sides of the front middle part of the fixed plate 2; the upper ends of the two pulling arms 91 are hingedly mounted on the left and right sides of the lower side of the transverse pull plate 93, and the middle part of the upper end of the transverse pull plate 93 has a hinge hole, and the lower end of the steel wire rope 102 is mounted in the hinge hole at the upper end of the transverse pull plate 93 (the lower end of the steel wire rope 102 passes through the hinge hole at the upper end of the transverse pull plate 92 and is welded together outside the upper end of the transverse pull plate), and a return spring 95 is sleeved on the outer side of the steel wire rope between the upper end of the transverse pull plate 93 and the outer side of the lower end of the third pull rod 33;The handle mechanism includes a mounting plate 1011, a handle 1012, a hand lever 1013, and a fixed limit seat 1014. The upper end of the hand lever 1013 is welded to the lower left end of the mounting plate 1011. The upper part of the sleeve 101 of the soft cable is fixed to the middle of the left end of the mounting plate 1011 via a limit seat with a nut (there is a mounting groove smaller than the outer diameter of the sleeve in the middle of the rear inner side of the limit seat 1014. The limit seat mounting groove is stuck on the outside of the sleeve, and the upper and lower ends of the limit seat 1014 are respectively fixed to the middle of the left end of the mounting plate 1011 by bolts or welding). The middle part of the handle 1012 is rotatably mounted in the middle of the front right end of the mounting plate 1011. The upper end of the steel wire rope 102 inside the soft cable is installed together with the opening at the upper left end of the handle 1012 (the upper end of the steel wire rope 102 passes through the opening at the upper end of the handle and is welded outside the rear end of the opening).

[0017] Figure 1 、 2 As shown in FIG, the outer diameter of the sleeve 101 is larger than the inner diameter of the guide hole, and the outer diameter of the wire rope 102 is smaller than the inner diameter of the guide hole. When the inner ends of the two sampling chambers 92 come into contact, the lower ends of the two sampling chambers 92 form a conical structure with a smaller bottom and a larger top. When the spring 95 is not in a compressed state, there is a distance between the inner sides of the two sampling chambers 92. The inner diameter of the first sampling rod 31 (with a closed structure at the upper end and an opening in the middle, through which the soft cable is led to the upper outer end) is larger than the outer diameter of the second sampling rod 32, and the inner diameter of the second sampling rod 32 is larger than the outer diameter of the third sampling rod 33.

[0018] Figure 1 、 2As shown in FIG, before sampling, the sampler loosens the nuts 6 securing the two sampling rods 32 and 33, then extends the length of the three sampling rods as needed. When the length reaches the desired value (satisfying the sampler's operation on shore and ensuring the lower end of the sampling chamber can contact the upper end of the sampled sludge below the water surface), the sampler tightens the two nuts 6. This secures the length of the three sampling rods, preparing for sampling. Specifically, after the three sampling rods are secured, the sampler manually tightens the bolt A8. This allows the left end of the bolt A8 to tightly contact the right outer end of the sleeve of the flexible cable, securing the flexible cable within the upper sampling rod. When sampling is complete, the sampler loosens the two nuts 6 (and bolt A8), shortening the length of the three sampling rods, and then tightens the two nuts again. This shortens the length of the three sampling rods, making them easier to store and carry. When sampling, the sampling personnel holds a sampling rod 31 at the upper end with one hand, and then inserts the lower ends of the two sampling chambers 92 (the two sampling chambers 92 are spaced apart, and the inner lower ends of the two sampling chambers 92 are at a state of nearly 60 degrees to the upper ends) into the sampling area under the water surface, and holds the handle 1012 and the hand rod 1013 with the other hand. In this way, the upper end of the handle 1012 will pull the wire rope 102 upward, and the horizontal pull plate 93 compresses the spring 95 upward, and the horizontal pull plate 93 drives the inner sides of the lower ends of the two pulling arms 91 to move toward each other and inward along the hinge point. Then, the two support rods 94 reduce the distance between the inner sides of the two sampling chambers 92 along the hinge point. After the inner ends of the two sampling chambers 92 touch each other, the sampling area can be filled. The sludge is collected into the space inside the two sampling chambers 92; then the staff member lifts the sampling chamber out of the water with one hand. After the sampling chamber reaches the shore (the lower end of the sampling chamber is located at the upper end of the sludge sampling bottle), the staff member no longer exerts force on the handle 1012 and the hand lever 1013, and loosens the handle 1012 and the hand lever 1013. In this way, under the downward elastic force of the spring 95, the spring 9 drives the horizontal pull plate 93 to drive the lower ends of the two pull arms 91 to move outward along the hinge point. Then, the two support rods 94 expand the distance between the inner ends of the sampling chambers 92 along the hinge point, and the distance between the inner ends of the two sampling chambers 92 is separated. The lower end and the upper end of the two sampling chambers 92 are at a state of nearly 60 degrees, and the sludge in the sampling chambers will flow into the sampling bottle, etc. Through the above, the sludge in the sampling area can be effectively clamped in the two sampling chambers. Since the lower ends of the two sampling chambers are relatively closed after sampling, the sludge is prevented from leaking out after sampling, thereby improving the sludge sampling effect.

[0019] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included in the present invention.

[0020] In addition, it should be understood that although this specification is described in terms of implementation methods, the implementation methods do not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An underwater sludge sampling device, comprising a sampling rod, a sampling tube mechanism, a soft cable, a fixing plate, and a handle mechanism, characterized in that: The sampling rods are multiple, the side ends of the first and second sampling rods are provided with guide grooves, the side ends of the second and third sampling rods are installed with limit bolts, the second sampling rod and the third sampling rod are respectively slidably sleeved on the inner sides of the first sampling rod and the second sampling rod, the bolts of the second sampling rod and the third sampling rod are respectively located in the guide grooves of the first sampling rod and the second sampling rod, and a nut is installed on the side ends of each bolt; a wire seat is provided on one side of the upper end of the first sampling rod, and a bolt A is screwed into the wire seat; the lower end of the third sampling rod is a closed structure and has a guide hole, a soft cable is sleeved on the inner sides of the three sampling rods, the lower end of the sleeve of the soft cable is located at the upper end of the guide hole, the lower end of the steel wire rope inside the soft cable is located outside the lower end of the third sampling rod, and the lower end of the third sampling rod is installed on the upper end of the fixed plate; the sampling tube mechanism includes a pulling arm, a sampling chamber, a cross There are two pulling plates, two pulling arms and two sampling chambers respectively. A support rod is installed on the upper end of the sampling chamber. The upper ends of the two support rods are respectively hingedly installed on both sides of the front lower end of the fixed plate. The lower inner sides of the two pulling arms are respectively hingedly installed with the middle parts of the outer sides of the two support rods. The middle parts of the two pulling arms are respectively hingedly installed on both sides of the front middle of the fixed plate; the upper ends of the two pulling arms are respectively hingedly installed on both sides of the lower end of the horizontal pulling plate. The upper end of the horizontal pulling plate has a hinge hole. The lower end of the steel wire rope is installed in the hinge hole. A return spring is provided on the outer side of the steel wire rope between the upper end of the horizontal pulling plate and the outer side of the lower end of the third pulling rod; the handle mechanism includes a mounting plate, a handle, a hand rod and a limit seat. The upper end of the hand rod is installed on one side of the lower end of the mounting plate, the upper part of the sleeve of the soft pull cable is installed on one side of the upper end of the mounting plate through the limit seat, the middle part of the handle is rotatably installed on the other side of the mounting plate, and the upper end of the steel wire rope of the soft pull cable and the upper end of the handle are installed together.

2. An underwater sludge sampling device according to claim 1, characterized in that: The outer diameter of the casing is larger than the inner diameter of the guide hole, and the outer diameter of the wire rope is smaller than the inner diameter of the guide hole.

3. An underwater sludge sampling device according to claim 1, characterized in that: The inner end of the sampling chamber is an open structure and the lower end is a sloped structure.

4. The underwater sludge sampling device according to claim 1, characterized in that: After the inner ends of the two sampling chambers are in contact with each other, the lower ends of the two sampling chambers form a cone structure.

5. The underwater sludge sampling device according to claim 1, characterized in that: When the spring is not in a compressed state, there is a gap between the inner sides of the two sampling chambers.

6. The underwater sludge sampling device according to claim 1, characterized in that: The inner diameter of the first sampling rod is greater than the outer diameter of the second sampling rod, and the inner diameter of the second sampling rod is greater than the outer diameter of the third sampling rod.

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