Engineering geological well inner pipe sampling device

Abstract

The utility model belongs to the technical field of engineering exploration, and particularly relates to an engineering geological well inner pipe sampling device which comprises a shell and further comprises a closing assembly arranged in the shell, the closing assembly comprises a floating ring connected to the outer surface of the shell in a sliding mode, the shell is put into a well through a rope, and after the shell sinks into underground liquid, the floating ring is connected to the outer surface of the shell in a sliding mode. A floating ring is suspended in water, the floating ring pulls a baffle through the action of a limiting rod, so that the baffle can be separated from a bottom plate, liquid flows into a shell through through holes formed in the surfaces of the bottom plate and the baffle, after the liquid in the shell rises to a certain height, a floating ball is pushed, and the floating ball can drive a sliding rod to move upwards; the sliding rod slides in the sliding groove formed in the surface of the fixing plate, meanwhile, the U-shaped structure of the sliding rod can abut against the spray head of the gas tank through the air bag, gas in the gas pipe is discharged through the spray head, the air bag pushes the bottom plate to close the bottom plate, liquid can be stored in the shell, and a worker pulls the shell out of a well through a rope, so that sampling can be completed.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering exploration, and in particular relates to a pipe sampling device in an engineering geological well. Background Art

[0002] During engineering geological surveys, water quality sampling is required. The groundwater fixed-depth sampling device is an auxiliary device used to sample groundwater so that the groundwater quality can be tested and analyzed later.

[0003] Upon investigation, the disclosure (announcement) number: CN217006496U discloses a groundwater fixed-depth sampling device for water wells. This technology discloses "a groundwater fixed-depth sampling device for water wells, comprising a traction rope and a sampler arranged at the bottom of the traction rope, the sampler comprising: an outer shell, the outer shell having a cylindrical first cavity, and a first through hole communicating with the first cavity is provided on the side wall of the outer shell, and other technical contents, and discloses that the groundwater fixed-depth sampling device for water wells can reduce the disturbance caused to groundwater during sampling, thereby ensuring the authenticity of the concentration of each component of the sample and the authenticity of the subsequent sample detection data, and improving practicality and other technical effects."

[0004] The existing liquid sampling in engineering geological wells is very inconvenient. When sampling in deeper wells, the placement position cannot be guaranteed to be accurate, and it cannot be ensured whether the liquid in the engineering geological well enters the collector. Multiple operations are required, which is very troublesome.

[0005] In order to solve the above problems, this application proposes an engineering geological well inner tube sampling device. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides an engineering geological well inner tube sampling device, which can drop the shell into the well through a rope to sample liquid minerals. After the sampling volume is reached, it can automatically close to improve the collection effect and effectively prevent the sampling device from falling off and sinking.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an engineering geological well inner tube sampling device, comprising a shell and a closing assembly arranged in the shell.

[0008] The closing assembly includes a floating ring slidably connected to the outer surface of the shell, two L-shaped limit rods symmetrically installed on the top surface of the floating ring, and a baffle installed at one end of the two limit rods. The baffle is slidably connected to the shell, and a bottom plate is installed on the bottom surface of the shell by bolts. The bottom plate abuts against the baffle. A fixing plate is installed in the shell, a gas tank is installed on the top surface of the fixing plate, and an air bag is installed on the bottom surface of the fixing plate. The jet end of the gas tank passes through the fixing plate and the air bag and extends into the air bag. A sliding frame is slidably connected in the sliding groove opened on the surface of the fixing plate, a floating ball is installed on the top of the sliding frame, and the sliding frame is perpendicular to the nozzle of the gas tank.

[0009] As a preferred embodiment of the engineering geological well inner tube sampling device of the present invention, a ventilation groove is provided on the outer surface of the limiting rod.

[0010] As a preferred embodiment of the engineering geological well inner tube sampling device of the present invention, both the bottom plate and the baffle surface are provided with through holes, and the through holes provided on the bottom plate and the baffle surface are staggered.

[0011] As a preferred embodiment of the engineering geological well inner tube sampling device of the present invention, a retaining ring is installed on the inner wall of the shell.

[0012] As a preferred engineering geological well pipe sampling device of the utility model, it also includes a floating assembly installed on the bottom surface of the floating ring, the floating assembly includes a support plate hinged on the bottom surface of the floating ring, a foam plate installed in the support plate, and a magnetic block installed on the bottom surface of the foam plate, and the magnetic block is provided with an arc groove matching the shell on one side surface of the magnetic block close to the shell.

[0013] As a preferred embodiment of the engineering geological well pipe sampling device of the present invention, a plurality of hollow tubes are installed on the bottom surface of the foam board.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. On this basis, a closing component is added. The shell is lowered into the well through a rope. After the shell sinks into the underground liquid, it is suspended in the water through a float. The float pulls the baffle through the action of the limit rod, so that the baffle can be separated from the bottom plate. Then the liquid in the well flows into the shell through the through holes opened on the surface of the bottom plate and the baffle. When the liquid in the shell rises to a certain height, it pushes the float, so that the float can drive the sliding rod to move up and slide in the slide groove opened on the surface of the fixed plate. At the same time, the U-shaped structure of the sliding rod will press against the nozzle of the gas tank through the air bag, so that the nozzle releases the gas in the air pipe and fills the air bag, so that the air bag can expand. The expansion force of the air bag after inflation is greater than the buoyancy of the float, and at the same time, the air bag pushes the bottom plate to close the bottom plate, so that the liquid can be stored in the shell. Then the staff pulls the shell out of the well through the rope to complete the sampling;

[0016] 2. At the same time, a floating component is added on this basis through settings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural diagram of the closing component in the present utility model;

[0020] Figure 3 This is a schematic structural diagram of the float, sliding frame and baffle in the utility model;

[0021] Figure 4 It is a structural diagram of the floating component in the utility model.

[0022] In the picture:

[0023] 1. Shell;

[0024] 2. Closing assembly; 201. Floating ring; 202. Limit rod; 203. Baffle; 204. Bottom plate; 205. Fixed plate; 206. Gas tank; 207. Sliding frame; 208. Floating ball; 209. Air bag; 210. Retaining ring;

[0025] 3. Floating assembly; 301. Support plate; 302. Foam board; 303. Magnetic block; 304. Hollow tube. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0027] like Figures 1-4 As shown;

[0028] A pipe sampling device for an engineering geological well comprises a shell 1.

[0029] In this embodiment: After investigation, the disclosure (announcement) number: CN217006496U discloses a groundwater fixed-depth sampling device for a water well. This technology discloses "a groundwater fixed-depth sampling device for a water well, comprising a traction rope and a sampler arranged at the bottom of the traction rope, the sampler comprising: an outer shell, the outer shell having a cylindrical first cavity, and a first through hole communicating with the first cavity is provided on the side wall of the outer shell, and other technical contents. The groundwater fixed-depth sampling device for a water well is disclosed, which can reduce the disturbance caused to the groundwater during sampling, thereby ensuring the authenticity of the concentration of each component of the sample and the authenticity of the subsequent sample detection data, and improving practicality and other technical effects."

[0030] The existing liquid sampling in engineering geological wells is very inconvenient. When sampling in deeper wells, the placement position cannot be guaranteed to be accurate. It cannot be ensured whether the liquid in the engineering geological well enters the collector. Multiple operations are required, which is very troublesome. Combined with actual use, this problem is obviously a real problem that is difficult to solve. In view of this, in order to solve this technical problem, a closing component 2 and a floating component 3 are added to this application document.

[0031] According to the above content, in order to facilitate the automatic extraction of water, oil or other liquids from the well for sampling and testing, a closing assembly 2 is also included in the shell 1; the closing assembly 2 includes a float 201 slidably connected to the outer surface of the shell 1 and two L-shaped limit rods 202 symmetrically installed on the top surface of the float 201 and a baffle 203 installed at one end of the two limit rods 202. The baffle 203 is slidably connected to the shell 1. A bottom plate 204 is installed on the bottom surface of the shell 1 by bolts. The plate 204 is in contact with the baffle 203, and a fixed plate 205 is installed in the shell 1. A gas tank 206 is installed on the top surface of the fixed plate 205, and an air bag 209 is installed on the bottom surface of the fixed plate 205. The jet end of the gas tank 206 passes through the fixed plate 205 and the air bag 209 and extends into the air bag 209. A sliding frame 207 is slidably connected in the sliding groove opened on the surface of the fixed plate 205, and a float 208 is installed on the top of the sliding frame 207. The sliding frame 207 is perpendicular to the nozzle of the gas tank 206.

[0032] In this embodiment, the shell 1 is lowered into the well by a rope. After the shell 1 sinks into the underground liquid, it is suspended in the water by the float 201. The float 201 pulls the baffle 203 through the action of the limit rod 202, so that the baffle 203 can be separated from the bottom plate 204. Then, the underground liquid flows into the shell 1 through the through holes opened on the surface of the bottom plate 204 and the baffle 203. When the liquid in the shell 1 rises to a certain height, it pushes the float 208, so that the float 208 can drive the sliding rod to move upward, and the sliding rod is lifted. The movable rod slides in the slide groove opened on the surface of the fixed plate 205. At the same time, the U-shaped structure of the sliding rod will press against the nozzle of the gas tank 206 through the air bag 209, so that the nozzle releases the gas in the trachea and fills the air bag 209, so that the air bag 209 can expand. The expansion force of the air bag 209 after inflation is greater than the buoyancy of the float ring 201. At the same time, the air bag 209 pushes the bottom plate 204 to close the bottom plate 204, so that the liquid can be stored in the shell 1. Then the staff pulls the shell 1 out of the well with a rope to complete the sampling.

[0033] It should be noted that a sealing rubber gasket should be installed on the bottom surface of the baffle 203.

[0034] In an optional embodiment, a ventilation groove is provided on the outer surface of the limiting rod 202 .

[0035] In this embodiment, the vent groove on the outer surface of the limiting rod 202 discharges the gas in the shell 1 after the body fluid enters the shell 1 .

[0036] In an optional embodiment, through holes are provided on the surfaces of the bottom plate 204 and the baffle 203 , and the through holes provided on the surfaces of the bottom plate 204 and the baffle 203 are staggered.

[0037] In this embodiment, the through holes of the baffle 203 and the bottom plate 204 are staggered, so that the liquid inlet can be closed after the liquid sampling is completed to prevent liquid leakage.

[0038] In an optional embodiment, a retaining ring 210 is installed on the inner wall of the housing 1 .

[0039] In this embodiment, the movement range of the baffle 203 is controlled by the retaining ring 210 to prevent the housing 1 from sinking too deep into the liquid and to avoid excessive pressure.

[0040] According to the above content, in order to prevent the device from falling and sinking into the liquid during the sampling process, it also includes a floating assembly 3 installed on the bottom surface of the float ring 201. The floating assembly 3 includes a support plate 301 hinged to the bottom surface of the float ring 201, a foam plate 302 installed in the support plate 301, and a magnetic block 303 installed on the bottom surface of the foam plate 302. The magnetic block 303 has an arc-shaped groove on the side surface close to the shell 1 that matches the shell 1.

[0041] In this embodiment, when the shell 1 contacts the liquid in the well, the liquid thrust pushes the foam plate 302 on the support plate 301, so that the foam plate 302 can rotate on the float ring 201 through the support plate 301, and can only rotate to be parallel to the liquid surface. The buoyancy of the liquid and the gravity of the shell 1 work together to enable the foam plate 302 to expand through the support plate 301, thereby expanding the support effect on the shell 1.

[0042] In an optional embodiment, a plurality of hollow tubes 304 are installed on the bottom surface of the foam board 302 .

[0043] In this embodiment, the hollow tubes 304 on the bottom surface of the foam board 302 can enhance the floating effect, improve the supporting effect on the shell 1, and prevent the shell 1 from sinking too deep.

[0044] The working principle and use process of the present invention are as follows: when the shell 1 contacts the liquid in the well, the liquid thrust pushes the foam plate 302 on the support plate 301, so that the foam plate 302 can rotate on the float ring 201 through the support plate 301, and can only rotate to be parallel to the liquid surface. The buoyancy of the liquid and the gravity of the shell 1 act together to enable the foam plate 302 to unfold through the support plate 301, thereby expanding the supporting effect on the shell 1. The shell 1 is dropped into the well through the rope. After the shell 1 sinks into the liquid in the well, it is suspended in the water through the float ring 201. The float ring 201 pulls the baffle 203 through the action of the limit rod 202, so that the baffle 203 can be separated from the bottom plate 204, and then the liquid in the well passes through the bottom plate 20 4 and the through holes opened on the surface of the baffle 203 flow into the shell 1. When the liquid in the shell 1 rises to a certain height, it will push the float 208, so that the float 208 can drive the sliding rod to move upward and make the sliding rod slide in the slide groove opened on the surface of the fixed plate 205. At the same time, the U-shaped structure of the sliding rod will press against the nozzle of the gas tank 206 through the air bag 209, so that the nozzle releases the gas in the trachea and fills the air bag 209, so that the air bag 209 can expand. The expansion force of the air bag 209 after inflation is greater than the buoyancy of the float ring 201, and at the same time, the air bag 209 pushes the bottom plate 204 to close the bottom plate 204, so that the liquid can be stored in the shell 1. Then the staff can pull the shell 1 out of the well by rope to complete the sampling.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An engineering geological well inner tube sampling device, comprising a housing (1), characterized in that: Also included is a closing assembly (2) disposed within the housing (1); The closing assembly (2) comprises a floating ring (201) slidably connected to the outer surface of the shell (1), two L-shaped limiting rods (202) symmetrically installed on the top surface of the floating ring (201), and a baffle (203) installed at one end of the two limiting rods (202), wherein the baffle (203) is slidably connected to the shell (1), and a bottom plate (204) is installed on the bottom surface of the shell (1) by bolts, and the bottom plate (204) is in contact with the baffle (203), and a fixing plate (205) is installed in the shell (1). ), a gas tank (206) is installed on the top surface of the fixed plate (205), an air bag (209) is installed on the bottom surface of the fixed plate (205), the jet end of the gas tank (206) passes through the fixed plate (205) and the air bag (209), and extends into the air bag (209), a sliding frame (207) is slidably connected in the sliding groove opened on the surface of the fixed plate (205), a floating ball (208) is installed on the top of the sliding frame (207), and the sliding frame (207) is perpendicular to the nozzle of the gas tank (206).

2. The engineering geological well inner tube sampling device according to claim 1, characterized in that: A ventilation groove is provided on the outer surface of the limiting rod (202).

3. The engineering geological well inner tube sampling device according to claim 1, characterized in that: Through holes are provided on the surfaces of the bottom plate (204) and the baffle (203), and the through holes provided on the surfaces of the bottom plate (204) and the baffle (203) are staggered.

4. The engineering geological well inner tube sampling device according to claim 1, characterized in that: A retaining ring (210) is installed on the inner wall of the housing (1).

5. The engineering geological well inner tube sampling device according to claim 1, characterized in that: The invention also includes a floating assembly (3) installed on the bottom surface of the floating ring (201), the floating assembly (3) including a support plate (301) hinged to the bottom surface of the floating ring (201), a foam plate (302) installed in the support plate (301), and a magnetic block (303) installed on the bottom surface of the foam plate (302), wherein the magnetic block (303) is provided with an arc groove matching the shell (1) on a side surface close to the shell (1).

6. The engineering geological well inner tube sampling device according to claim 5, characterized in that: A plurality of hollow tubes (304) are installed on the bottom surface of the foam plate (302).

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