Miniature deepwater sampler

Abstract

The utility model discloses a miniature deepwater sampler. The miniature deepwater sampler mainly comprises a collecting device, a lifting rope, a winch and a movable device, the device is mainly used for collecting underground water in a deep well to analyze the water quality condition of the underground water. The equipment is integrally installed and placed at a wellhead, the collecting device is placed in a well and descends through the winch, and collected water does not make contact with air on the well to react to change water quality through linkage cooperation of the pressure sensor, the liquid level sensor, the gas valve and the electromagnetic valve. Through the arranged movable device, the collecting device can move in the horizontal direction, avoids obstacles and can move and dive according to terrain changes. The equipment solves the problems of low collection efficiency, large collection site limitation and change of the property of the collected water body caused by the fact that obstacles cannot be avoided in deep well water collection, and can improve the working efficiency, reduce the collection difficulty and improve the accuracy of water body data.

Description

Technical Field

[0001] The present application relates to the field of water sample collection, and in particular to a miniature deep-water sampler. Background Art

[0002] Water is the source of life. A large part of my country's freshwater resources comes from deep well groundwater. Collecting and analyzing groundwater is an important way to conduct long-term monitoring and detection of the water conditions of groundwater resources. When collecting deep well groundwater, the collector needs to be placed in a deep well with complex terrain and environment for collection. Existing deep water samplers can only move the sampler vertically into the water body, and cannot avoid obstacles and special terrain. It also does not take into account that the oxidants and reductants in the deep well air are quite different from the air above the well, which can easily cause changes in the water quality of the collected water body and affect the authenticity and accuracy of the analysis data. A deepwater sampler is needed that allows a collector to be displaced horizontally and can isolate the air above the well, for example, a simple deepwater sampling device with publication number: CN109799112A, whose structure includes two major parts: a gallows and a sampler. The gallows includes a base, a winch and a steel cable with a scale and a weight, the base is used to support and fix the entire gallows, and the steel cable connects the winch and the sampler; the sampler includes a cylindrical sampling barrel with a main body made of PVC material, a protective frame made of stainless steel and a plumb bob for adding counterweight and balance, the sampler has a lifting ring and a closed locking device at the top, switchable water outlets on both sides of the lower part, and floating cover plates at the bottom and the top, and the upper cover and the bottom cover both have left and right balanced locking devices. When sampling, the weight slides down the steel cable to hit the trigger head to activate the locking device; the locking device closes the upper cover and the bottom cover, and the winch is rotated to lift the sampler. The above-mentioned sampling device only serves to make the sampler move vertically and cannot prevent the collected water from contacting the air above the well. Therefore, the present application designs a miniature deep-water sampler that can move horizontally and avoid the collected water from contacting the air above the well. Utility Model Content

[0003] The utility model aims to provide a steel bar straightening and cutting device, aiming to solve the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a miniature deep-water sampler, comprising a lifting rope, a winch, a movable device and a collection device capable of performing underground gas exchange, wherein one end of the lifting rope is connected to the rope of the collection device; the other end of the lifting rope passes through the movable device and is fixedly connected to the winch, and the winch rotates to tighten or loosen the lifting rope to displace the collection device in the vertical direction, so that the collection device descends into the deep well and descends to a designated position in the water body for collection, and the movable device drives the collection device to move horizontally by changing the horizontal position of the lifting rope to avoid complex terrain and obstacles underground.

[0005] Furthermore, the collection device includes a collection bucket, a hanging ear, a pressure sensor and an outer barrel that provides protection for the collection bucket; the outer barrel adopts a stainless steel structure and can overcome buoyancy and sink in the water. The hanging ear is fixedly connected to the upper part of the outer barrel, the lifting rope is connected to the hanging ear rope, the upper part of the collection bucket is fixedly connected to the outer barrel, and the pressure sensor is fixedly arranged at the lower part of the outer barrel. When it contacts the liquid surface, a signal is sent out and the depth of the collection device can be judged. A liquid level sensor, a gas valve and a solenoid valve are arranged inside the collection bucket; the solenoid valve is fixedly arranged at the lower part of the collection bucket and extends out of the collection device, and the gas valve is fixedly arranged at the upper part of the collection bucket and extends out of the collection device, so as to realize the exchange of air inside and outside the collection device when going down the well and to remove the gas inside the collection device when collecting water. The liquid level sensor is arranged at the upper end of the collection bucket.

[0006] Furthermore, the movable device includes a bracket, a support seat, a threaded telescopic rod and a transmission mechanism that enables the support seat to move left and right; the bracket is fixedly connected to the lower end of the transmission mechanism, the support seat is fixedly connected to the upper end of the transmission mechanism, and the threaded telescopic rod is fixedly connected to the middle of the support seat, so that the lifting rope can be displaced in the horizontal and longitudinal directions respectively, and the transmission mechanism includes a gear, a rack, a rotating pair and a sliding block, the lower end of the rack is fixedly connected to the bracket, the gear is meshed with the rack, the rotating pair is rotatably connected to the gear, the support seat is fixedly connected to the upper end of the rotating pair, the sliding block is fixedly connected to the lower end of the rotating pair, and the sliding block is slidably connected to the rack, so that the support seat can move left and right and drive the threaded telescopic rod to move left and right, the threaded telescopic rod includes an external threaded sleeve, a middle threaded sleeve, an internal threaded sleeve and a rotating wheel, the external threaded sleeve is fixedly connected to the support seat; the middle threaded sleeve is arranged inside the external threaded sleeve, and the internal threaded sleeve is arranged inside the middle threaded sleeve; the upper part of the middle threaded sleeve extends out of the external threaded sleeve and is fixedly connected to the middle of the rotating wheel, and the lifting rope passes through the internal threaded sleeve, so that the middle threaded sleeve drives the internal threaded sleeve and then drives the lifting rope to move forward and backward.

[0007] Furthermore, the outer thread sleeve is provided with threads inside, the inner thread sleeve is provided with threads outside, the inner and outer parts of the middle thread sleeve are provided with threads in opposite directions; and a hollow hole is provided in the middle of the rotating wheel.

[0008] Compared with the prior art, it has the following beneficial effects:

[0009] The utility model provides a miniature deep-water sampler, which can realize gas exchange of the collection device underground through the cooperation of the solenoid valve, the liquid level sensor, the pressure sensor and the gas valve, remove the gas in the device during sampling and make the collection device completely closed during lifting. It can effectively prevent the collected water from reacting with the air above the well and changing the water quality. It effectively improves the authenticity and accuracy of the water analysis data; by setting up a movable device, the collection device can be displaced horizontally underground and can reach any point underground. It can effectively avoid complex terrain and obstacles underground, greatly improve the water collection efficiency, effectively expand the deep underground water collection scene, expand the water collection range, and effectively increase the samples of deep water bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a front view of a miniature deep-water sampler of the utility model;

[0011] Figure 2 This is a schematic diagram of a collection device of a miniature deep-water sampler of the utility model;

[0012] Figure 3 It is a schematic diagram of the movable device part of a miniature deep-water sampler of the utility model;

[0013] Figure 4 The utility model is a cross-sectional view of a threaded telescopic rod of a miniature deep-water sampler.

[0014] In the figure: 1-lifting rope; 2-winch; 3-movable device; 31-bracket; 32-support seat; 33-threaded telescopic rod; 331-external threaded sleeve; 332-middle threaded sleeve; 333-internal threaded sleeve; 334-rotating wheel; 34-transmission mechanism; 341-gear; 342-rack; 343-rotating pair; 344-sliding block; 4-collecting device; 41-collecting bucket; 411-liquid level sensor; 412-gas valve; 413-solenoid valve; 42-hanging ear; 43-pressure sensor; 44-outer bucket. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figures 1 to 4As shown, the utility model provides the following technical solutions: a miniature deep-water sampler, comprising a lifting rope 1, a winch 2, a movable device 3 and a collection device 4 capable of underground gas exchange, wherein one end of the lifting rope 1 is divided into two and connected to a hook 42 on the collection device 4; the other end passes through the movable device 3 and is fixedly connected to the winch 2, and the winch 2 rotates to tighten or loosen the lifting rope 1 to move the collection device 4 up and down, thereby completing the lowering and lifting of the collection device 4; the movable device 3 drives the collection device 4 to move horizontally by changing the horizontal position of the lifting rope 1, thereby changing the horizontal position of the collection device 4, and thereby enabling the collection device 4 to reach any point underground; the lifting rope 1 is made of a lifting rope material containing a signal transmission line, so that personnel on the well can receive the sensor data sent by the collection device 4.

[0017] As another example, Figure 1 to Figure 2 As shown, the collection device 4 includes a collection bucket 41, a hanging ear 42, a pressure sensor 43, and an outer barrel 44 for protecting the collection bucket 41; the outer barrel 44 is made of stainless steel, which protects the internal collection bucket 41 and increases the overall weight of the collection device 4, making it easier to overcome the buoyancy in the water so as to dive to a specified depth for sampling. There are two hanging ears 42, which are fixedly connected to the upper part of the outer barrel 44, the lifting rope 1 is connected to the hanging ear 42 rope, the upper part of the collection bucket 41 is fixedly connected to the outer barrel 44, so that the collection device 4 is completely closed, and the pressure sensor 43 is fixedly arranged at the lower part of the outer barrel 44. The pressure sensor 43 can send out pressure data in real time, which is convenient for judging the diving depth; the pressure sensor 43 sends out an electrical signal when it contacts the water surface, and the gas valve 412 is automatically closed. The collection barrel 41 is provided with a liquid level sensor 411, a gas valve 412 and a solenoid valve 413; the solenoid valve 413 is fixedly arranged at the lower part of the collection barrel 41 and extends out of the collection device 4. When sampling, the solenoid valve 413 automatically opens to collect water. The gas valve 412 is fixedly arranged at the upper part of the collection barrel 41 and extends out of the collection device 4. The gas valve 412 is always open when the collection device 4 is lowered, and the gas exchange between the underground gas and the gas inside the collection device 4 is carried out; when collecting water, the gas valve 412 automatically discharges the gas inside the collection device 4, and the liquid level sensor 411 is arranged at the upper end of the collection barrel 41. When the water level of the collected water reaches the liquid level sensor 411, the gas valve 412 and the solenoid valve 413 are closed. When the collected water is lower than the liquid level sensor 411, the liquid level sensor 411 alarms, indicating that the collection device 4 is leaking. It can effectively prevent the collected water from reacting with the gas above the well, and improve the authenticity and accuracy of the water data.

[0018] As another example, Figure 1 , Figure 3 and Figure 4As shown, the movable device 3 includes a bracket 31, a support seat 32, a threaded telescopic rod 33 and a transmission mechanism 34 that allows the support seat 32 to move left and right; the bracket 31 is fixedly connected to the lower end of the transmission mechanism 34, the support seat 32 is fixedly connected to the upper end of the transmission mechanism 34, and the threaded telescopic rod 33 is fixedly connected to the middle of the support seat 32. The lifting rope 1 can be moved forward and backward by the extension and contraction of the threaded telescopic rod 33, thereby driving the collection device 4 to move forward and backward. The transmission mechanism 34 includes a gear 341, a rack 342, a rotating pair 343 and a sliding block 344. The lower end of the rack 342 is fixedly connected to the bracket 31, the gear 341 is meshed with the rack 342, the rotating pair 343 is rotatably connected to the gear 341, the support seat 32 is fixedly connected to the upper end of the rotating pair 343, the sliding block 344 is fixedly connected to the lower end of the rotating pair 343, and the sliding block 344 is slidably connected to the rack 342. The gear 341 rotates along the rack 342, driving the support seat 32 and the threaded telescopic rod 33 to move left and right together, thereby causing the lifting rope 1 to move left and right, so that the collection device 4 can be displaced in the horizontal direction. The threaded telescopic rod 33 includes an external thread sleeve 331, a middle thread sleeve 332, an internal thread sleeve 333 and a rotating wheel 334. The external thread sleeve 331 is fixedly connected to the support seat 32; the middle thread sleeve 332 is arranged inside the external thread sleeve 331, and the internal thread sleeve 333 is arranged inside the middle thread sleeve 332; the upper part of the middle thread sleeve 332 extends out of the external thread sleeve 331 and is fixedly connected to the middle part of the rotating wheel 334, and the lifting rope 1 passes through the internal thread sleeve 333. The external thread sleeve 331 is provided with threads inside, the internal thread sleeve 333 is provided with threads outside, and the internal and external parts of the middle thread sleeve 332 are provided with threads with opposite directions. When the middle threaded sleeve 332 rotates, it drives the inner threaded sleeve 333 to move outside the outer threaded sleeve 331, thereby causing the lifting rope 1 to move forward and backward. A hollow hole is provided in the middle of the rotating wheel 334 for the inner threaded sleeve 333 and the lifting rope 1 to pass through. This allows the collection device 4 to move in the horizontal direction, making it easier to avoid underground obstacles and terrain changes, thereby improving the water collection efficiency and expanding the water collection range.

[0019] Working principle: When in use, first, the movable device 3 and the winch 2 are fixedly installed on the wellhead, and the collection device 4 is placed above the wellhead. The winch 2 is turned on to make the collection device 4 descend along the deep well. During the process, the gas valve 412 is always open to exchange the underground gas and remove the air above the well inside the collection device 4. The movable device 3 drives the lifting rope 1 to move in the horizontal direction through the cooperation of the transmission mechanism 34 and the threaded telescopic rod 33, and then drives the collection device 4 to move, so that the collection device 4 can avoid the changes in the underground terrain or obstacles. After the collection device 4 reaches the water surface, the pressure sensor 43 contacts the water surface and sends an electrical signal to make the gas valve 412 close the collection device 4 to dive. The diving depth of the collection device 4 can be determined according to the data of the pressure sensor 43. After reaching the designated sampling position, the solenoid valve 413 and the gas valve 412 are opened at the same time, and the internal gas of the collection device 4 is discharged while the water body is collected. When the water level of the collected water body reaches the liquid level sensor 411, the solenoid valve 413 and the gas valve 412 are closed, and the water body collection is completed. The winch 2 reverses to lift the collection device 4 to the well surface.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micro deep water sampler, characterized in that , comprising a lifting rope (1), a winch (2), a movable device (3) and a collection device (4) capable of exchanging gas underground, wherein one end of the lifting rope (1) is connected to a rope of the collection device (4); the other end of the lifting rope (1) passes through the movable device (3) and is fixedly connected to the winch (2); the winch (2) rotates to tighten or loosen the lifting rope (1) so as to move the collection device (4) up and down; the movable device (3) drives the collection device (4) to move horizontally by changing the horizontal position of the lifting rope (1).

2. The micro deep water sampler according to claim 1, characterized in that: The collecting device (4) comprises a collecting bucket (41), a hanging ear (42), a pressure sensor (43) and an outer bucket (44) for protecting the collecting bucket (41); the hanging ear (42) is fixedly connected to the upper part of the outer bucket (44), the lifting rope (1) is rope-connected to the hanging ear (42), the upper part of the collecting bucket (41) is fixedly connected to the outer bucket (44), and the pressure sensor (43) is fixedly arranged at the lower part of the outer bucket (44).

3. The micro deep water sampler according to claim 2, characterized in that: A liquid level sensor (411), a gas valve (412) and a solenoid valve (413) are provided inside the collection barrel (41); the solenoid valve (413) is fixedly arranged at the lower part of the collection barrel (41) and extends out of the collection device (4); the gas valve (412) is fixedly arranged at the upper part of the collection barrel (41) and extends out of the collection device (4); and the liquid level sensor (411) is arranged at the upper end inside the collection barrel (41).

4. The micro deep water sampler according to claim 1, characterized in that: The movable device (3) comprises a bracket (31), a support seat (32), a threaded telescopic rod (33) and a transmission mechanism (34) for causing the support seat (32) to move left and right; the bracket (31) is fixedly connected to the lower end of the transmission mechanism (34), the support seat (32) is fixedly connected to the upper end of the transmission mechanism (34), and the threaded telescopic rod (33) is fixedly connected to the middle part of the support seat (32).

5. The micro deep water sampler according to claim 4, characterized in that: The transmission mechanism (34) comprises a gear (341), a rack (342), a rotating pair (343) and a sliding block (344); the lower end of the rack (342) is fixedly connected to the bracket (31); the gear (341) is meshed with the rack (342); the rotating pair (343) is rotationally connected to the gear (341); the support seat (32) is fixedly connected to the upper end of the rotating pair (343); the sliding block (344) is fixedly connected to the lower end of the rotating pair (343); and the sliding block (344) is slidably connected to the rack (342).

6. The micro deep water sampler according to claim 5, characterized in that: The threaded telescopic rod (33) comprises an external threaded sleeve (331), a middle threaded sleeve (332), an internal threaded sleeve (333) and a rotating wheel (334); the external threaded sleeve (331) is fixedly connected to the support seat (32); the middle threaded sleeve (332) is arranged inside the external threaded sleeve (331), and the internal threaded sleeve (333) is arranged inside the middle threaded sleeve (332); the upper part of the middle threaded sleeve (332) extends out of the external threaded sleeve (331) and is fixedly connected to the middle part of the rotating wheel (334); the lifting rope (1) passes through the internal threaded sleeve (333).

7. The micro deep water sampler according to claim 6, characterized in that: The external thread sleeve (331) is provided with threads inside, the internal thread sleeve (333) is provided with threads outside, and the internal and external parts of the middle thread sleeve (332) are both provided with threads in opposite directions.

8. The micro deep water sampler according to claim 7, characterized in that: The rotating wheel (334) is provided with a hollow hole in the middle.

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