A rectangular hopper sampler

Abstract

The utility model provides a rectangular bucket sampler, include: box, the box includes bottom plate and side plate, side plate all and bottom plate are connected, and the side edge of side plate is connected in turn first and foremost into the closed structure, and the opening of the box on side plate is provided with the sawtooth that leans to the outside; The axle rod is arranged in the box, and both ends of the axle rod are rotatably arranged on the inner wall of different side plates; The cable buckle is arranged on the axle rod; The water hole is arranged on the bottom plate and the side plate. The utility model solves the problem that the original riverbed bottom material sampler adopts manual operation, additionally equips power, and the operation difficulty is big, avoids the shortcomings that the existing net type bottom material sampler manual operation and the special power equipment required by the clam type bottom material sampler, the bucket mouth outwardly inclined spade tooth can be excavated in the dragging process, and the riverbed bottom material is taken, and for the medium soft bottom material such as coarse, medium, fine sand, silt etc., the sampling efficiency is higher.

Description

Technical Field

[0001] This utility model belongs to the field of hydrological observation technology, specifically a rectangular bucket sampler. Background Technology

[0002] In hydrological surveys of waterway engineering, the detection of riverbed and seabed sediments is a direct means of identifying underwater sediments. Particle analysis of the sediment is also an important basic task in the study of sediment movement in underwater engineering. It plays an important role in studying the stability of the river (sea) bed after dredging of underwater engineering sites, or in predicting reservoir siltation and downstream scour after river closure and dam construction.

[0003] The current "Specifications for Hydrological Observation of Water Transport Engineering" includes methods for bottom sediment detection such as pit exploration when the riverbanks dry up during low water levels and printing detection method for mountain rivers. Existing related detectors include mesh bottom sediment samplers, clamshell bottom sediment samplers, and underwater printing devices.

[0004] Existing mesh-type bottom sediment samplers require a power-driven towing vessel to simultaneously manpower to apply downward force with a vertical pole to ensure the sampler embeds itself in the bottom sediment. During towing, the sampler digs up the sediment, encountering significant resistance and bouncing, resulting in low sampling efficiency. When sampling in water depths greater than 2 meters, the current exceeds 1 m / s, making operation extremely difficult. Clamshell bottom sediment samplers, a current technology, utilize the weight of the clamshell bucket to dredge the riverbed sediment. However, they require auxiliary equipment, namely a winch and its support, and must be installed on a vessel, powered by an engine or generator, making operation quite complex.

[0005] Existing clamshell bottom sediment samplers rely on their own weight to penetrate the riverbed during operation. A closing mechanism closes the clamshell container, and sediment is extracted during this process. In practice, the container must weigh over 100 kg, requiring a winch to lift it, and a frame must be installed on the vessel. When the water flow reaches 2 m / s and the water depth exceeds 3 m, the container weight must be increased to over 200 kg to extract sediment. The overall equipment is heavy and difficult to operate. Utility Model Content

[0006] This utility model provides a rectangular bucket sampler, which solves the problems of the original riverbed sediment sampler requiring manual operation and additional power, making operation difficult. It avoids the disadvantages of existing net-type sediment samplers requiring manual operation and clamshell sediment samplers requiring dedicated power equipment. During the towing process, the outward-sloping shovel teeth of the rectangular bucket will automatically dig out the riverbed sediment. It has a high sampling efficiency for medium and soft sediments such as coarse, medium and fine sand and silt.

[0007] A rectangular bucket sampler, comprising:

[0008] The box body has an opening and includes a bottom plate and side plates. The side plates are connected to the bottom plate. The side edges of adjacent side plates are connected one end to the other to form a closed structure, which forms the closed side wall of the box body structure. The opening of the box body on the side plates is provided with outward inclined serrations, that is, the end of each side plate at the opening is provided with serrations. The serrations are the digging end of the sampler, which facilitates the smooth digging of the riverbed bottom.

[0009] A shaft is disposed inside the housing, with its two ends rotatably mounted on the inner walls of two different side plates.

[0010] A mooring hook is installed on the shaft; one end of the cable is connected to the mooring hook and the other end is connected to the hull. The mooring hook is connected to the shaft and can be welded to the shaft. Professionals on the ship throw the sampler with the mooring hook attached into the river channel. The sampler can be extracted from the riverbed by the ship's own towing.

[0011] The water-permeable holes are provided through the bottom plate and the side plate. These holes allow water to enter the tank, enabling it to descend smoothly to the bottom of the riverbed.

[0012] In actual operation, the sampler is thrown into the riverbed and towed by a cable to excavate the bottom sediment. The towing power is the ship's power, avoiding the need for manual operation.

[0013] Preferably, there are four side plates, adjacent side plates are perpendicular to each other, and the side plates are perpendicular to the bottom plate. This structure makes the sampler of this utility model have a rectangular bucket structure, and the sampler as a whole has a rectangular box or rectangular barrel structure. After entering the bottom of the river, any one of its surfaces can lie flat on the river bottom plane, so that sampling can be carried out smoothly.

[0014] Preferably, the outward tilt angle α of the saw teeth is 20–25°, and the saw tooth height h is 30–40 mm. During towing, the outward tilting shovel teeth at the bucket opening will automatically excavate the riverbed sediment. For medium-soft sediments such as coarse, medium, and fine sand and silt, the sampling efficiency is high. This saw tooth shape facilitates excavation; if the tilt angle is too small, the sampling effect is poor and the success rate is low; if the tilt angle is too large, the collection resistance is high, and the effect is also poor. This size ensures smooth excavation while reducing resistance.

[0015] Preferably, the permeable hole array is disposed on the bottom plate and the side plate, and multiple permeable holes are provided and arranged in an array to ensure that the sampler can smoothly permeate water and sink.

[0016] Preferably, the side plates and the bottom plate are both 6-10mm thick, and the diameter of the permeable holes is 5-10mm. Using steel plates of this size as the box material ensures both the strength of the box and the lightweight design of the sampler. The modified permeable hole diameter ensures smooth water permeation and prevents the excavated bottom material from easily flowing out of the holes.

[0017] The mooring hook is located at the middle of the shaft along its length, and its inner diameter is 30-50mm. This ensures that the sampler is subjected to uniform force during towing, resulting in stable operation and smooth tunneling and extraction.

[0018] Preferably, the shaft is a round steel structure with a diameter of 20mm, and both ends of the shaft penetrate the side plate. Cotter pins are provided at both ends of the shaft, and these cotter pins are located on the outside of the housing. This facilitates shaft rotation, improves adaptability, and prevents axial movement and detachment of the shaft.

[0019] Preferably, the axis of the shaft is parallel to the base plate, and the distance between the center axis of the shaft and the base plate is 0.6 to 0.7 times the height of the side plate. For example, if the height of the side plate is 380 mm, then the distance between the shaft and the base plate is 230 mm. The purpose of this dimension is to make the box easy to tip over by dragging, that is, to make the side plate fit against the riverbed surface, so that the sampler is more stable during excavation and extraction.

[0020] Preferably, a constant weight block can be set at the rear of the box body. The constant weight block is connected to the box body by a rope with a length of 1m. The weight of the constant weight block can be 5kg to 10kg, which increases the weight of the sampler box body, increases the stability of the tunneling process, and improves the sampling effect.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] This utility model simplifies the sampling equipment and simplifies the operation process, avoiding the cumbersome operation of existing technologies that require auxiliary settings such as winches and their supports, and use engines or generators to provide power.

[0023] This invention eliminates the need for external power, utilizing the ship's power for bottom sediment extraction. A rectangular bucket sampler is connected to the ship via a cable, allowing the ship's power to generate the necessary drag force for extraction and sampling. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a rectangular bucket sampler according to the present invention.

[0025] Figure 2 This is a cross-sectional view of a rectangular bucket sampler according to the present invention.

[0026] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0027] Figure 4 This is a diagram showing the working state of a rectangular bucket sampler as described in this utility model.

[0028] In the diagram: 1-box body, 101-bottom plate, 102-side plate, 2-shaft, 3-serration, 4-cable tie, 5-water hole, 6-constant weight block. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0030] Example 1:

[0031] like Figures 1-2 As shown, a rectangular bucket sampler includes:

[0032] The box body 1 includes a bottom plate 101 and side plates 102. The side plates 102 are all connected to the bottom plate 101. The side edges of the side plates 102 are connected one end to the other to form a closed structure, that is, to form the closed side wall of the box body 1. The opening of the box body 1 on the side plates 102 is provided with outwardly inclined serrations 3, that is, each side plate 102 has serrations 3 at the end of the opening.

[0033] Shaft 2, the shaft 2 is disposed inside the housing 1, and the two ends of the shaft 2 are respectively rotatably disposed on the inner wall of different side plates 102;

[0034] Mooring buckle 4 is installed on the shaft 2; the cable and mooring buckle 4 are connected, and the mooring buckle 4 is connected to the shaft 2. Professional personnel on the ship throw the sampler with the cable attached into the river channel, and the sampler can be extracted from the riverbed by the ship's own towing.

[0035] Water permeable holes 5 are provided through the bottom plate 101 and the side plate 102. The water permeable holes 5 are used to allow water to enter the tank 1, so that the tank 1 can be smoothly lowered to the bottom of the river.

[0036] like Figure 4 As shown, in actual operation, one end of the cable is fixed to the mooring buckle 4 and the other end is fixed to the boat. Then, the entire sampler is thrown into the river. After the container 1 is permeated by the water-permeable hole 5, it sinks to the riverbed surface. The sampler is dragged by the cable. At this time, the side plate 102 is in contact with the riverbed surface. The saw teeth 3 dig the bottom sediment of the riverbed into the container 1, thus achieving the function of the sampler digging the bottom sediment. The dragging power is the power of the boat, avoiding the use of manual operation.

[0037] Example 2:

[0038] This embodiment provides a rectangular bucket sampler. The sampler is designed in the shape of a rectangular bucket, and the power required for digging the bottom sediment is generated by a self-propelled vessel towing it via a cable. This avoids the need for manual operation of the net-type bottom sediment sampler recommended in the specifications and the dedicated power equipment required for the clamshell bottom sediment sampler.

[0039] like Figure 1 and Figure 2 As shown, this embodiment includes: a box body 1, the box body 1 having an opening, the box body 1 including a bottom plate 101 and four side plates 102, the side plates 102 being connected to the bottom plate 101, the side edges of the side plates 102 being connected sequentially to form a closed structure, presenting a rectangular bucket structure, the opening of the box body 1 on the side plates 102 being provided with outwardly inclined serrations 3, that is, each side plate 102 at the opening is provided with serrations 3 at its end, which is the digging end of the sampler.

[0040] Shaft 2, the shaft 2 is disposed inside the housing 1, and the two ends of the shaft 2 are respectively rotatably disposed on the inner wall of different side plates 102;

[0041] A cable tie 4 is provided on the shaft 2; the cable and the cable tie 4 are connected, the cable tie 4 is connected to the shaft 2, and the cable tie 4 is welded to the shaft 2.

[0042] Water-permeable holes 5 are provided through the bottom plate 101 and the side plate 102.

[0043] In this embodiment, the adjacent side plates 102 are perpendicular to each other, and the side plates 102 are perpendicular to the bottom plate 101. This structure makes the sampler of this utility model present a rectangular bucket structure, and the sampler as a whole is a rectangular box 1 or a rectangular barrel structure. After entering the bottom of the river, any side can lie flat on the bottom plane of the river, and the sampling is smooth.

[0044] like Figure 3 As shown, in this embodiment, the outward tilt angle α of the saw teeth 3 is 20-25°, and the height h of the saw teeth 3 is 30-40mm. During the towing process, the outward tilting shovel teeth at the bucket opening will automatically excavate the riverbed sediment, resulting in high sampling efficiency for medium-soft sediments such as coarse, medium, and fine sand and silt. In this embodiment, the permeable holes 5 are arrayed on the bottom plate 101 and the side plate 102, and the arrangement of multiple permeable holes 5 in an array ensures that the sampler can smoothly sink through water.

[0045] In this embodiment, the side plates 102 and the bottom plate 101 are both 6-10mm thick, and the diameter of the water-permeable hole 5 is 5-10mm. Using steel plates of this size as the material of the box body 1 ensures the strength of the box body 1 and also achieves the lightweighting of the sampler.

[0046] like Figure 1 and Figure 2 As shown, the mooring hook 4 is located at the middle of the shaft 2 along its length, and the inner diameter of the mooring hook 4 is 30-50mm. This ensures that the sampler is subjected to uniform force during towing, operates stably, and facilitates smooth tunneling and extraction.

[0047] like Figure 1 Figure 2 As shown, in this embodiment, the shaft 2 is a round steel structure with a diameter of 20mm. Both ends of the shaft 2 penetrate the side plate 102. Cotter pins 6 are provided at both ends of the shaft 2, and the cotter pins 6 are located on the outside of the housing 1.

[0048] like Figure 2 As shown, in this embodiment, the axis of the shaft 2 is parallel to the base plate 101, and the distance L between the shaft 2 and the base plate 101 is 0.6 to 0.7 times the height S of the side plate 102. For example, if the height of the side plate 102 is 380 mm, then the distance between the shaft 2 and the base plate 101 is 230 mm.

[0049] like Figure 4 As shown in this embodiment, a constant weight block 6 can also be set at the rear of the box 1. That is, during the operation of this embodiment, the constant weight block 6 is set at the rear of the box 1. The rope between the constant weight block 6 and the box 1 is 1m long. The weight of the constant weight block 6 can be 5kg to 10kg. The constant weight block 6 adds weight to the sampler, which avoids the sampler from bouncing due to high resistance in actual use, and the sand collection efficiency is higher.

Claims

1. A rectangular bucket sampler, characterized in that... include: Box (1), the box (1) includes a bottom plate (101) and a side plate (102), the side plate (102) is connected to the bottom plate (101), the side edges of the side plate (102) are connected one after the other to form a closed structure, and the opening of the box (1) on the side plate (102) is provided with outward inclined serrations (3); A shaft (2) is disposed inside the housing (1), and the two ends of the shaft (2) are respectively rotatably disposed on the inner walls of different side plates (102); A mooring buckle (4) is provided on the shaft (2); Water-permeable holes (5) are provided through the bottom plate (101) and the side plate (102).

2. The rectangular bucket sampler according to claim 1, characterized in that: There are four side plates (102), adjacent side plates (102) are perpendicular to each other, and the side plates (102) are perpendicular to the bottom plate (101).

3. A rectangular bucket sampler according to claim 1, characterized in that: The outward tilt angle of the saw teeth (3) is 20-25°, and the height of the saw teeth (3) is 30-40mm.

4. A rectangular bucket sampler according to claim 1, characterized in that: The permeable holes (5) array is arranged on the bottom plate (101) and the side plate (102).

5. A rectangular bucket sampler according to claim 1, characterized in that: The side plate (102) and the bottom plate (101) are both 6-10 mm thick, and the permeable hole (5) has a diameter of 5-10 mm.

6. A rectangular bucket sampler according to claim 1, characterized in that: The cable tie (4) is located at the middle of the shaft (2) along its length, and the inner diameter of the cable tie (4) is 30-50 mm.

7. A rectangular bucket sampler according to claim 2, characterized in that: The shaft (2) is a round steel structure with a diameter of 20mm. Both ends of the shaft (2) pass through the side plate (102). Cotter pins (6) are provided at both ends of the shaft (2). The cotter pins (6) are located outside the housing (1).

8. A rectangular bucket sampler according to claim 2, characterized in that: The axis of the shaft (2) is parallel to the base plate (101), and the distance between the shaft (2) and the base plate (101) is 0.6 to 0.7 times the height of the side plate (102).

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