A mud extractor

Abstract

The present invention discloses a mud extractor, including a mud extractor device and a sealing device, wherein the mud extractor device includes a mud extractor tube, a pull rod and an extension tube, the bottom of the mud extractor tube is fixedly connected with a mud extractor head, the sealing device includes an annular inflatable airbag, an air pump, an airbag core and a second air pipe arranged at the bottom of the mud extractor tube, an air inlet hole is opened on one side of the lower end of the mud extractor tube, an airbag core is arranged in the air inlet hole, one end of the airbag core located inside the mud extractor tube is connected to the inflatable airbag, the other end of the airbag core is connected to the second air pipe, an air nozzle is installed at the other end of the second air pipe, and the air nozzle is connected to the air pump; a rubber plug is fixedly installed at one end of the pull rod located inside the mud extractor tube, the other end of the pull rod is provided with an external thread and connected to a lifting cross bar through the external thread, and a lifting rod with an external pull rope is arranged above the lifting cross bar. The present invention can effectively extract deep mud by setting the extension tube and the filtering device.

Description

Technical Field

[0001] The invention relates to the technical field of underwater mud sampling, in particular to a mud sampler. Background Art

[0002] In recent years, with the acceleration of urban industrial development, urban river pollution has become increasingly serious, and river sediment pollution has also become more and more serious. After various prevention and control measures have been taken to control the exogenous pollution of the river, the sediment has become the endogenous source of river pollution. Therefore, the research on river sediment has gradually deepened. At the same time, in some laboratories or research institutes, it is often necessary to collect sediment samples for experimental analysis, and it is very difficult to sample river sediment. At present, there is no better device for sampling the bottom silt to determine whether it meets the standards, because conventional mud collectors can only retrieve samples from the surface of the silt, which cannot meet the construction needs. Summary of the invention

[0003] The object of the present invention is to provide a mud extractor, which can effectively extract deep mud by arranging an extension tube and a filtering device.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mud collector, comprising a mud collecting device and a sealing device, the mud collecting device comprising a mud collecting tube, a pull rod and an extension tube, the bottom of the mud collecting tube is fixedly connected to a mud collecting head, the sealing device comprises an annular inflatable airbag, an air pump, an airbag air core and a second air pipe arranged at the bottom of the mud collecting tube, an air inlet hole is opened on one side of the lower end of the mud collecting tube, an airbag air core is arranged in the air inlet hole, one end of the airbag air core located inside the mud collecting tube is connected to the inflatable airbag, the other end of the airbag air core is connected to the second air pipe, and the other end of the second air pipe is installed There is an air nozzle, which is connected to the air pump; a rubber plug is fixedly installed on one end of the pull rod located inside the mud collecting barrel, and the other end of the pull rod is provided with an external thread and is connected to the lifting cross bar through the external thread, and a lifting bad with an external pull rope is provided above the lifting cross bar; a first mounting plate is installed on the top of the mud collecting barrel, and the first mounting plate is threadedly connected to the top of the mud collecting barrel; an internal thread matching the first mounting plate is provided on the top of the mud collecting barrel; a filter port is opened on the side of the lower end of the mud collecting barrel opposite to the air inlet, and the filter port is composed of a plurality of small holes, and a filtering device is provided on one side of the filter port.

[0005] Preferably, a sealing rubber pad is provided around the air inlet on one side of the lower end of the mud sampling tube.

[0006] Preferably, one side of the extension tube is provided with an external thread matching the mud collection tube, and the other side is provided with an internal thread matching the first mounting plate.

[0007] Preferably, the rubber plug is a cylindrical rubber plug, and the diameter of the rubber plug is equal to the diameter of the mud sampling tube.

[0008] Preferably, the first mounting plate is made of a hollow stainless steel plate.

[0009] Preferably, the filtering device includes an internally threaded steel sleeve fixedly mounted on one side of the lower end of the mud collecting barrel with a plurality of small holes, and a filter replacement core installed inside the internally threaded steel sleeve and threadedly connected to the internally threaded steel sleeve, the filter replacement core includes a filter mesh, and the diameter of the filter mesh is 10-30nm.

[0010] Preferably, the mud collecting head is made of a stainless steel annular blade.

[0011] Preferably, the inflatable airbag is a rubber airbag made by vulcanizing rubber and a fiber reinforcement layer.

[0012] Preferably, arc-shaped protrusions are provided at both ends of the lifting cross bar.

[0013] Preferably, the inflatable airbag and the airbag air core are sealed and connected via a first sealing sleeve.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The mud collecting device includes a mud collecting device, and the mud collecting device includes a mud collecting tube and a pull rod. The top of the mud collecting tube is detachably mounted with a first mounting plate, and the first mounting plate is threadedly connected to the top of the mud collecting tube, which is convenient to use. The lower end of the mud collecting tube is provided with a filter port on the side opposite to the air inlet, and the filter port is composed of a plurality of small holes, and a filter device is provided on one side of the filter port. The filter port and the filter device can filter out excess water, leaving only the mud components in the mud water in the mud collecting tube. The other end of the pull rod is provided with an external thread and connected to the lifting cross bar through the external thread, thereby facilitating the disassembly and installation between the pull rod and the lifting cross bar; and a lifting part for an external pull rope is provided above the lifting cross bar, which can facilitate the external rope to be pulled.

[0016] 2. The mud collecting device includes an extension tube, and one side of the extension tube is provided with an external thread matching the mud collecting tube, and the other side is provided with an internal thread matching the first mounting plate; the top of the mud collecting tube can be detachably installed with the first mounting plate, and the first mounting plate is threadedly connected to the top of the mud collecting tube; the top of the mud collecting tube is provided with an internal thread matching the first mounting plate; the extension tube and the mud collecting tube can be conveniently disassembled and installed through the threaded structure, such a structure makes the mud collecting device suitable for underwater mud sampling, and the sampling depth can be deeper.

[0017] 3. The mud collecting device includes a sealing device, through which the mud collecting head can be closed; when the mud collecting process is completed by the mud collecting device, air is pumped into the inflatable air bag inside the mud collecting tube through the air pump, thereby sealing the lower end opening of the mud collecting tube to prevent mud from leaking out of the lower end opening of the mud collecting tube.

[0018] 4. The inflatable airbag is made of rubber and fiber reinforcement layer vulcanized rubber airbag, which has high compressive strength and excellent performance of expansion and contraction. With the water pump, it can shrink without taking up space when collecting mud. After the mud collecting process is completed, it can be inflated to seal the lower end opening of the mud collecting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a mud extractor of the present invention;

[0020] Figure 2 A kind of mud extractor of the present invention Figure 1 A magnified view of part A;

[0021] Figure 3 A kind of mud extractor of the present invention Figure 1 A magnified view of part B;

[0022] Figure 4 The present invention is a schematic structural diagram of an extended tube in a mud extractor.

[0023] In the figure: 1. Mud collecting tube; 2. Mud collecting head; 3. Pull rod; 4. First mounting plate; 5. Lifting cross bar; 501. Arc-shaped convex part; 502. Lifting bad; 503. Rubber plug; 6. Internally threaded steel sleeve; 601. Filter replacement core; 7. Second air pipe; 701. Air nozzle; 702. Air core of air bag; 703. Sealing sleeve; 704. Inflatable air bag; 705. Sealing rubber pad; 8. Extension tube. DETAILED DESCRIPTION

[0024] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-4An embodiment of the present invention is as follows: a mud collecting device, comprising a mud collecting device and a sealing device, wherein the mud collecting device comprises a mud collecting tube 1, a pull rod 3 and an extension tube 8, wherein a mud collecting head 2 is fixedly connected to the bottom of the mud collecting tube 1, and the sealing device comprises an annular inflatable airbag 704, an air pump, an airbag air core 702 and a second air pipe 7 arranged at the bottom of the mud collecting tube 1, an air inlet hole is opened on one side of the lower end of the mud collecting tube 1, an airbag air core 702 is arranged in the air inlet hole, one end of the airbag air core 702 located inside the mud collecting tube 1 is connected to the inflatable airbag 704, and the other end of the airbag air core 702 is connected to the second air pipe 7, and the other end of the second air pipe 7 is installed with An air nozzle 701, which is connected to an air pump; a rubber plug 503 is fixedly installed at one end of the pull rod 3 located inside the mud collecting tube 1, and the other end of the pull rod 3 is provided with an external thread and is connected to a lifting cross bar 5 through the external thread, and a lifting stopper 502 with an external pull rope is provided above the lifting cross bar 5; a first mounting plate 4 is installed on the top of the mud collecting tube 1, and the first mounting plate 4 is threadedly connected to the top of the mud collecting tube 1; an internal thread matching the first mounting plate 4 is provided on the top of the mud collecting tube 1; a filter port is provided on the side of the lower end of the mud collecting tube 1 opposite to the air inlet, and the filter port is composed of a plurality of small holes, and a filtering device is provided on one side of the filter port.

[0026] In an embodiment provided by the present invention, the annular inflatable air bag 704 at the bottom of the mud sampling tube 1 is fixed to the bottom of the mud sampling tube 1 by hot-melt connection.

[0027] In an embodiment provided by the present invention, a sealing rubber pad 705 is provided around the air inlet on one side of the lower end of the mud sampling tube 1, which can enhance the tightness of the connection between the air bag air core 702 and the air inlet, and avoid air leakage when inflating the air bag 704.

[0028] In an embodiment provided by the present invention, one side of the extension tube 8 is provided with an external thread matching the mud sampling tube 1, and the other side is provided with an internal thread matching the first mounting plate 4, thereby conveniently realizing the threaded disassembly connection between the extension tube 8 and the mud sampling tube 1, so that the mud sampler can be suitable for underwater mud sampling and can sample at a deeper depth.

[0029] In an embodiment provided by the present invention, the rubber plug 503 is a cylindrical rubber plug, and the diameter of the rubber plug 503 is equal to the diameter of the mud sampling tube 1, thereby ensuring the sealing performance between the rubber plug 503 and the mud sampling tube 1 during the mud sampling process, and the mud sample can be smoothly extracted into the mud sampling tube 1.

[0030] In an embodiment provided by the present invention, the first mounting plate 4 is made of a hollow stainless steel plate; it has a certain supporting strength and can support heavy objects.

[0031] An embodiment provided by the present invention, the filtering device includes an internally threaded steel sleeve 6 fixedly installed on one side of the lower end of the mud collecting barrel with a plurality of small holes, and a filter replacement core 601 installed inside the internally threaded steel sleeve 6 and threadedly connected to the internally threaded steel sleeve 6, the filter replacement core 601 includes a filter mesh, and the diameter of the filter mesh is 10-30nm.

[0032] The average diameter of water molecules is 0.4 nanometers, but the average diameter of particles in the mud component is above 50 nm. The diameter of the filter screen of the present invention is set to 10-30 nm, which can effectively filter out excess water molecules in the mud sample and effectively retain the mud component.

[0033] In an embodiment provided by the present invention, the mud collecting head 2 is made of a stainless steel annular blade, and the mud collecting head 2 can be conveniently inserted into the river bottom to collect mud.

[0034] In an embodiment provided by the present invention, the inflatable airbag 704 is a rubber airbag made by vulcanizing rubber and a fiber reinforcement layer; it has high compressive strength and excellent performance of being able to expand and contract when contracted. In conjunction with a water pump, it can shrink without occupying space when collecting mud, and after the mud collecting process is completed, it can be inflated to seal the lower end opening of the mud collecting tube 1.

[0035] In an embodiment provided by the present invention, arc-shaped protrusions 501 are provided at both ends of the lifting cross bar 5, so that it is convenient for a human hand to hold the lifting cross bar 5 to perform the process of lifting and sucking mud.

[0036] In an embodiment provided by the present invention, the inflatable airbag 704 and the airbag core 702 are sealed and connected via a first sealing sleeve 703, thereby ensuring the sealing performance between the inflatable airbag 704 and the airbag core 702 and ensuring that no air leakage occurs during inflation.

[0037] Working principle: First, according to the water depth to be detected, an appropriate number of extension tubes 8 are connected externally, and the first mounting plate 4 is installed at the top of the last section of the extension tube 8; then the mud collecting head 2 in the mud collecting device is vertically inserted into the water, and after it is stable, the lifting cross bar 5 is pulled upward according to the determined mud collecting depth, or the pull rod 3 is pulled upward through the pull ring, and when the mud collecting depth is reached, the pulling of the lifting cross bar 5 is stopped on the one hand, and on the other hand, the air pump is used to inflate the air bag 704 to seal the lower end opening of the mud collecting tube 1. , preventing mud from leaking out from the lower end opening of the mud sampling tube 1; since the annular inflatable airbag 704 arranged at the bottom of the mud sampling tube 1 is limited by space, when the inflatable airbag 704 is continuously inflated through the airbag air core 702, the inflatable airbag 704 will expand laterally, and then gradually block the opening at the lower end of the mud sampling tube 1; after the mud collection is completed, the first mounting plate 4 and the external extension tube 8 are removed in turn, and then the mud samples inside the extension tube 8 and the mud sampling tube 1 are pressed out into the sampling bottle, and at this point, the mud collection process is completely completed.

[0038] The mud extractor includes a mud extracting device, and the mud extracting device includes a mud extracting tube 1 and a pull rod 3. A first mounting plate 4 is detachably mounted on the top of the mud extracting tube 1, and the first mounting plate 4 is threadedly connected to the top of the mud extracting tube 1, which is convenient to use. A filter port is provided on the side of the lower end of the mud extracting tube 1 opposite to the air inlet, and the filter port is composed of a plurality of small holes, and a filter device is provided on one side of the filter port. The filter port and the filter device can filter out excess water, and only the mud components in the mud water are left in the mud extracting tube 1. The other end of the pull rod 3 is provided with an external thread and is connected to the lifting cross bar 5 through the external thread, thereby facilitating the disassembly and installation between the pull rod 3 and the lifting cross bar 5; and a lifting part 502 for an externally connected pull rope is provided above the lifting cross bar 5, which can facilitate the externally connected rope to be pulled.

[0039] The mud collecting device includes an extension tube 8, and one side of the extension tube 8 is provided with an external thread matching the mud collecting tube 1, and the other side is provided with an internal thread matching the first mounting plate 4; the top of the mud collecting tube 1 can be detachably installed with the first mounting plate 4, and the first mounting plate 4 is threadedly connected to the top of the mud collecting tube 1; the top of the mud collecting tube 1 is provided with an internal thread matching the first mounting plate 4; the extension tube 8 and the mud collecting tube 1 can be conveniently disassembled and installed through the threaded structure, such a structure makes the mud collecting device suitable for underwater mud sampling, and the sampling depth can be deeper. The mud collecting device includes a sealing device, and the closed state of the mud collecting head 2 can be achieved through the setting of the sealing device; when the mud collecting process is completed by the mud collecting device, air is pumped into the inflatable airbag 704 inside the mud collecting tube 1 through an air pump, thereby the lower end opening of the mud collecting tube 1 can be sealed to prevent mud from leaking out of the lower end opening of the mud collecting tube 1. The inflatable airbag 704 is a rubber airbag made of vulcanized rubber and fiber reinforcement layers. It has high compressive strength and excellent expansion and contraction properties. In conjunction with a water pump, it can shrink without taking up space when collecting mud. After the mud collecting process is completed, it can be inflated to seal the lower end opening of the mud collecting tube 1.

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A mud extractor, characterized in that: The invention comprises a mud collecting device and a sealing device, wherein the mud collecting device comprises a mud collecting tube (1), a pull rod (3) and an extension tube (8); the bottom of the mud collecting tube (1) is fixedly connected to a mud collecting head (2); the sealing device comprises an annular inflatable air bag (704), an air pump, an air bag core (702) and a second air pipe (7) arranged at the bottom of the mud collecting tube; an air inlet hole is provided on one side of the lower end of the mud collecting tube (1); an air bag core (702) is arranged in the air inlet hole; one end of the air bag core (702) located inside the mud collecting tube (1) is connected to the inflatable air bag (704); the other end of the air bag core (702) is connected to the second air pipe (7); the other end of the second air pipe (7) is provided with an air nozzle (701); The air nozzle (701) is connected to the air pump; a rubber plug (503) is fixedly installed at one end of the pull rod (3) located inside the mud collection tube (1); the other end of the pull rod (3) is provided with an external thread and is connected to the lifting cross bar (5) through the external thread; a lifting part (502) connected to an external pull rope is provided above the lifting cross bar (5); a first mounting plate (4) is installed on the top of the mud collection tube (1), and the first mounting plate (4) is threadedly connected to the top of the mud collection tube (1); an internal thread matching the first mounting plate (4) is provided on the top of the mud collection tube (1); a filter port is provided on the side of the lower end of the mud collection tube (1) opposite to the air inlet, the filter port is composed of a plurality of small holes, and a filtering device is provided on one side of the filter port; The filtering device comprises an internally threaded steel sleeve (6) fixedly mounted on one side of the lower end of the mud collecting tube where a plurality of small holes are formed, and a filter replacement core (601) mounted inside the internally threaded steel sleeve (6) and threadedly connected to the internally threaded steel sleeve (6), wherein the filter replacement core (601) comprises a filter screen, wherein the diameter of the filter screen is 10-30 nm; The inflatable airbag (704) is a rubber airbag made by vulcanizing rubber and a fiber reinforcement layer.

2. A mud extractor according to claim 1, characterized in that: A sealing rubber pad (705) is provided around the air inlet on one side of the lower end of the mud sampling tube (1).

3. A mud extractor according to claim 1, characterized in that: One side of the extension tube (8) is provided with an external thread matching the mud collection tube (1), and the other side is provided with an internal thread matching the first mounting plate (4).

4. A mud extractor according to claim 1, characterized in that: The rubber plug (503) is a cylindrical rubber plug, and the diameter of the rubber plug (503) is equal to the diameter of the mud collection tube (1).

5. A mud extractor according to claim 1, characterized in that: The first mounting plate (4) is made of a hollow stainless steel plate.

6. A mud extractor according to claim 1, characterized in that: The mud collecting head (2) is made of a stainless steel annular blade.

7. A mud extractor according to claim 1, characterized in that: Both ends of the lifting cross bar (5) are provided with arc-shaped protrusions (501).

8. The mud extractor according to claim 1, characterized in that: The inflatable airbag (704) and the airbag air core (702) are sealed and connected via a first sealing sleeve (703).

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