Underwater surface matrix sampler

Abstract

The invention discloses a water bottom surface matrix sampler, which belongs to the technical field of sampling, and comprises a mounting box body, the bottom of the mounting box body is detachably connected with a plurality of lengthened heads, the lower part of the lowermost lengthened head is detachably connected with a hollow drill bit, and the bottom of the inner side of the mounting box body is provided with a second mounting bin; a mounting boss is arranged at the bottom of the mounting box body, a first threading hole communicating with the second mounting bin is formed in the bottom of the mounting boss, a plurality of lengthened heads are sequentially inserted into the outer portion of the mounting boss, and a fastening assembly is mounted in the second mounting bin; the extension length of the hollow drill bit can be adjusted according to the depth of the water level through installation of a plurality of lengthened heads, so that the extension length of the hollow drill bit can be more conveniently prolonged when the water level is relatively deep, and a second driving motor in a fastening assembly rotates to drive a winding roller to rotate to wind a traction rope; and fixing force is generated between the plurality of lengthened heads and the hollow drill bit to sample the surface matrix.

Description

Technical Field

[0001] The invention belongs to the technical field of sampling, and in particular relates to a bottom surface matrix sampler. Background Art

[0002] In the prior art, sampling methods often use artificial excavation at pollution detection points, which is inefficient, costly, and destroys the distribution pattern of pollution at depth; or rotary drilling combined with mud circulation is used to cool the heat of the core drill bit to prevent the drill from burning, and on the other hand, the viscosity of the mud is used to protect the well wall to prevent collapse, but the chemical composition of the mud often has a large disturbance on the sample. Traditional drilling environment sampling methods and equipment are generally hydraulically driven, requiring a bulky hydraulic power source, with high noise and poor mobility. They are not suitable for environmental sampling of shallow soil in densely populated areas with narrow spaces, and the sampling cost is high. The above shortcomings make it difficult for traditional sampling methods to adapt to the requirements of modern environmental sampling.

[0003] With the development of science and technology, a portable sampler has emerged. For example, Chinese invention patent CN102435459A discloses a portable shallow surface sampler. When sampling, two driving motors drive two eccentric shafts to rotate. Since the axes of the two eccentric shafts are in the same horizontal plane, the lateral forces generated can offset each other, thereby only generating downward periodic exciting forces. When the vibration overlaps with the natural resonant frequency of the drill pipe, resonance will be generated, driving the drill pipe and the annular drill bit at the front end of the drill pipe to continuously advance into the rock and soil. The high-frequency vibration action causes the cutting edge of the drill bit to remove the material on its drilling path by cutting, shearing, and breaking, and causes the surrounding soil particles to liquefy, move the soil particles away from the side of the drill pipe, reduce the friction resistance between the drill tool and the hole wall, and greatly improve the drilling speed. While drilling, the core barrel inside the drill pipe follows up, the soil enters the core barrel, and the drill pipe plays a role in protecting the hole wall.

[0004] Although the above-mentioned prior art can achieve the purpose of portability, due to the limited length of the drill rod, when the water level is deeper and exceeds the length of the drill rod, it is necessary to replace it with a longer drill rod, and carrying too many drill rods will reduce the portability of the equipment. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In order to solve the problem that the length of the drill rod is limited as mentioned in the above background technology, when the water level is deeper and exceeds the length of the drill rod, it is necessary to replace it with a longer drill rod, and carrying too many drill rods will reduce the portability of the equipment, the present invention adopts the following technical solution.

[0007] A underwater surface matrix sampler comprises an installation box, a plurality of extension heads are detachably connected to the bottom of the installation box, a hollow drill bit is detachably connected to the bottom of the lowest extension head, a second installation bin is arranged at the inner bottom of the installation box, a mounting boss is arranged at the bottom of the installation box, a first threading hole connected to the second installation bin is arranged at the bottom of the installation boss, a plurality of extension heads are sequentially plugged into the outside of the installation boss, a fastening assembly is installed inside the second installation bin, the fastening assembly fixes the plurality of extension heads and the hollow drill bit to sample the underwater surface matrix.

[0008] Preferably, the upper end of the extension head is fixedly connected with a flange, and a plurality of extension heads are inserted into the interior of the flange below.

[0009] Preferably, a rubber ring is provided at the inner bottom of each flange, and the plurality of extension heads are combined to tighten and extrude the rubber ring through the fastening assembly.

[0010] Preferably, sliding grooves are provided on both sides of the interior of the second installation bin, a drawer is slidably connected to the interior of the second installation bin, an outer wall of the drawer is provided with an embedded groove for easy pulling, a through groove is provided at the upper end of the drawer, sliding plates that slide with the interior of the second installation bin are fixedly connected to the outer walls of both sides of the drawer, storage boxes are fixedly connected on both sides of the interior of the drawer, and multiple storage bins are provided on the storage boxes on both sides, and the storage bins store samples.

[0011] Preferably, the fastening assembly includes a traction rope, a winding roller and a second driving motor, a mounting boss is provided at the bottom of the mounting box, a first threading hole connected to the second mounting bin is provided at the bottom of the mounting boss, a plurality of extension heads are sequentially plugged into the outside of the mounting boss, the upper end of the hollow drill bit is detachably connected to the traction rope, the traction rope passes through each extension head and the first threading hole, a mounting bracket is fixedly connected to the inner bottom of the second mounting bin, a winding roller is rotatably connected inside the mounting bracket, the traction rope is wound around the outer wall of the winding roller, and a second driving motor is detachably connected to the inner bottom of the second mounting bin, the rotating end of the second driving motor is connected to one end of the winding roller, and the rotation of the second driving motor drives the winding roller to rotate and wind up the traction rope, so that a fixing force is generated between the plurality of extension heads and the hollow drill bit to clamp the surface matrix and take samples.

[0012] Preferably, a torque sensor is connected between the rotating end of the second drive motor and the winding roller, and the torque sensor detects the torque of the second drive motor and controls the torque of the second drive motor to be within a preset range.

[0013] Preferably, a second threading hole is provided at the center of the reinforcing plate, and the inner wall of the second threading hole is provided with a penetration groove that penetrates the flange and the outer wall of the extension head. The flange is located on the inner wall of the penetration groove and is fixedly connected with an inclined elastic plate. The deformation of the elastic plate can prevent the traction rope from falling off.

[0014] Preferably, a battery is installed inside the second installation compartment, and the battery supplies power to the electrical equipment. The battery is located between the storage boxes on both sides and the plug-in rods.

[0015] Preferably, adjustable shoulder straps are installed on both sides of the upper end of the installation box, and the outer walls on both sides of the installation box are fixedly connected to U-shaped frames with openings facing outwards, and the insides of the U-shaped frames on both sides are rotatably connected to rotating handle rods.

[0016] Preferably, a first mounting bin is provided at the inner top of the mounting box, and eccentric shafts are rotatably connected to both sides of the inner wall of the first mounting bin, and the initial phases of the eccentric shafts on both sides differ by 180 degrees. A first drive motor is detachably connected to both sides of the outer wall of one side of the mounting box, and the rotating ends of the first drive motors on both sides are inserted into the interior of the first mounting bin and are detachably connected to one end of the eccentric shafts on both sides, respectively, the angular velocities of the first drive motors on both sides are the same, and the axes of the eccentric shafts on both sides are in the same horizontal plane.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By installing multiple extension heads, the extension length of the hollow drill bit can be adjusted according to the water level depth, so that the extension length of the hollow drill bit can be extended more conveniently when facing a deep water level. The second drive motor in the fastening assembly rotates to drive the winding roller to rotate the winding traction rope, so that a fixing force is generated between the multiple extension heads and the hollow drill bit to apply pressure to the surface matrix and take samples. The torque of the second drive motor can be detected by the torque sensor and controlled within a preset range, thereby preventing the traction rope from breaking due to excessive torque.

[0019] 2. Through the setting of the flange, each extension head can be inserted into the flange below, so that the fixation can be more secure. Through the setting of the second threading hole and the elastic plate, when installing with the traction rope, the traction rope is passed through the elastic plate and then enters the second threading hole, making the installation more convenient. The elastic plate has deformation recovery force, which can prevent the traction rope from falling off.

[0020] 3. The interior of the multiple storage bins is used to place samples. The drawer is connected to the second installation bin by sliding, and the storage bins are used to place samples more conveniently, and it is more convenient to carry samples after sampling.

[0021] 4. By providing a plurality of plug-in rods, the second threading hole on each extension head is inserted into the interior of the plug-in rod, so that it is more convenient to carry the extension head.

[0022] 5. The adjustable shoulder strap can be carried on the operator's back. The rotation of the handle bars on both sides can reduce the discomfort to the operator's hands when sampling, thereby making the use more comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a water bottom surface matrix sampler in the present invention;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the top of the installation box in the present invention;

[0025] Figure 3 It is a schematic diagram of the side cross-sectional structure of the installation box in the present invention;

[0026] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0027] Figure 5 It is a schematic diagram of the combined structure of multiple extension blocks in the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the lengthened block in the present invention;

[0029] Figure 7 For the present invention Figure 5 The enlarged structural diagram at B in the middle;

[0030] Figure 8 It is a schematic diagram of the drawer structure in the present invention.

[0031] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0032] 100. Install the box; 101. Adjustable shoulder strap; 102. U-shaped frame; 103. Turn the handlebar;

[0033] 104, first drive motor; 105, first installation compartment; 106, eccentric shaft; 107, second installation compartment;

[0034] 108, sliding groove; 109, battery; 110, mounting bracket; 111, mounting boss;

[0035] 112, first threading hole;

[0036] 200, extension head; 201, flange; 202, rubber ring; 203, reinforcement plate; 204, penetration groove;

[0037] 205, elastic plate; 206, second threading hole;

[0038] 300, hollow drill bit; 301, second drive motor; 302, winding roller; 303, torque sensor;

[0039] 304, traction rope; 305, sawtooth groove;

[0040] 400, drawer; 401, sliding plate; 402, plug-in rod; 403, storage box; 404, storage compartment;

[0041] 405. Built-in groove. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0044] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0045] like Figure 1 As shown, it is a schematic diagram of the structure of a water bottom surface matrix sampler according to a preferred embodiment of the present invention. The water bottom surface matrix sampler of this embodiment comprises a mounting box 100, a plurality of extension heads 200 are detachably connected to the bottom of the mounting box 100, a hollow drill bit 300 is detachably connected below the lowest extension head 200, adjustable shoulder straps 101 are installed on both sides of the upper end of the mounting box 100, and U-shaped frames 102 with openings facing outward are fixedly connected to the outer walls of both sides of the mounting box 100, and the U-shaped frames 102 on both sides are fixedly connected to the outer walls of both sides of the mounting box 100. 02 is internally connected to a rotating handle bar 103. In this embodiment, it can be carried on the operator's back through an adjustable shoulder strap 101. The rotation of the handle bars 103 on both sides can reduce the discomfort to the operator's hands when sampling, thereby making it more comfortable to use. The installation of multiple extension heads 200 can adjust the extended length of the hollow drill bit 300 according to the water level depth, thereby making it more convenient to extend the extended length of the hollow drill bit 300 when facing a deeper water level.

[0046] like Figure 2As shown, it is a schematic diagram of the cross-sectional structure of the top of the installation box in this embodiment, a first installation chamber 105 is provided on the inner top of the installation box 100, and eccentric shafts 106 are rotatably connected on both sides of the inner wall of the first installation chamber 105, and the initial phases of the eccentric shafts 106 on both sides differ by 180 degrees. The first driving motor 104 is detachably connected to both sides of the outer wall of one side of the installation box 100, and the rotating ends of the first driving motors 104 on both sides are inserted into the interior of the first installation chamber 105 and are detachably connected to one end of the eccentric shafts 106 on both sides. The angular velocities of the first driving motors 104 on both sides are the same, and the axes of the eccentric shafts 106 on both sides are in the same horizontal plane. In this embodiment, the two first driving motors 104 drive the eccentric shafts 106 on both sides to rotate. Since the axes of the eccentric shafts 106 on both sides are in the same level, the lateral forces generated can offset each other, thereby only generating a downward periodic exciting force, thereby allowing the hollow drill bit 300 to be inserted into the bottom of the water for sampling.

[0047] like Figure 3 , Figure 4 as well as Figure 5 As shown, it is a side cross-sectional view of the installation box in this embodiment. Figure 3 A schematic diagram of the enlarged structure of the center A and the combined structure of multiple extension heads, a second installation bin 107 is arranged below the first installation bin 105, a mounting boss 111 is arranged at the bottom of the installation box 100, a first threading hole 112 communicating with the second installation bin 107 is arranged at the bottom of the mounting boss 111, multiple extension heads 200 are sequentially plugged into the outside of the mounting boss 111, a traction rope 304 is detachably connected to the upper end of the hollow drill bit 300, the traction rope 304 passes through each extension head 200 and the first threading hole 112, a mounting bracket 110 is fixedly connected to the inner bottom of the second installation bin 107, a winding roller 302 is rotatably connected to the inside of the mounting bracket 110, the traction rope 304 is wound around the outer wall of the winding roller 302, and a second drive motor 301 is detachably connected to the inner bottom of the second installation bin 107, The rotating end of the second drive motor 301 is connected to one end of the winding roller 302, and a torque sensor 303 is connected between the rotating end of the second drive motor 301 and the winding roller 302. In this embodiment, when adjusting the extension length of the hollow drill bit 300, the traction rope 304 and the hollow drill bit 300 are first removed, and multiple extension heads 200 are passed through the traction rope 304 as needed and the traction rope 304 is connected to the hollow drill bit 300. The second drive motor 301 is started to rotate and drive the winding roller 302 to rotate and wind up the traction rope 304, so that a fixing force is generated between the multiple extension heads 200 and the hollow drill bit 300 to sample the surface matrix. The torque of the second drive motor 301 can be detected by the torque sensor 303 and controlled within a preset range, thereby preventing the traction rope 304 from breaking due to excessive torque.

[0048] It is worth noting that the above-mentioned traction rope 304, winding roller 302 and second drive motor 301 are the fastening components in this embodiment, and the fastening components include but are not limited to the traction rope 304, winding roller 302 and second drive motor 301. As long as it is a mechanism that can fix multiple extension heads 200 and hollow drill bits 300, it can be applied to this embodiment.

[0049] like Figure 7 As shown, it is in this embodiment Figure 5 In the enlarged structural diagram at B, a plurality of sawtooth grooves 305 are provided at the bottom of the hollow drill bit 300. In this embodiment, the sawtooth grooves 305 can better break the surface matrix for sampling.

[0050] like Figure 6 As shown, it is a schematic diagram of the structure of the extension block in this embodiment, the upper end of the extension head 200 is fixedly connected with a flange 201, the inner wall of the extension head 200 is provided with a reinforcing plate 203, and a second threading hole 206 is provided at the center of the reinforcing plate 203, and the inner wall of the second threading hole 206 is provided with a penetration groove 204 that penetrates the flange 201 and the outer wall of the extension head 200, and the flange 201 is located at the inner wall of the penetration groove 204 and is fixedly connected with an inclined elastic plate 205. In this embodiment, the arrangement of the flange 201 allows each extension head 200 to be inserted into the interior of the flange 201 below, thereby making the fixation more secure. The arrangement of the second threading hole 206 and the elastic plate 205 allows the traction rope 304 to pass through the elastic plate 205 and then enter the interior of the second threading hole 206 when installed with the traction rope 304, making the installation more convenient, and the elastic plate 205 has a deformation recovery force, which can prevent the traction rope 304 from falling off.

[0051] like Figure 6 As shown, in order to further increase the stability of the connection between the multiple extension heads 200, a rubber ring 202 is provided at the inner bottom of each flange 201. Through the provision of the rubber ring 202, after every two extension heads 200 are tightened by force, the stability can be further increased through the squeezing of the rubber ring 202.

[0052] like Figure 3 as well as Figure 8As shown, it is a side cross-sectional view of the installation box and a schematic diagram of the drawer structure in this embodiment, sliding grooves 108 are provided on both sides of the interior of the second installation bin 107, the interior of the second installation bin 107 is slidably connected with a drawer 400, the outer wall of the drawer 400 is provided with an embedded groove 405 for easy pulling, and a through groove is provided at the upper end of the drawer 400, and the outer walls of the drawer 400 on both sides are fixedly connected with a sliding plate 401 that slides with the interior of the second installation bin 107, and the interior of the drawer 400 is fixedly connected with a storage box 403 on both sides, and a plurality of storage bins 404 are provided on the storage boxes 403 on both sides. In this embodiment, the interior of the plurality of storage bins 404 is used to place samples, and the drawer 400 is slidably connected to the second installation bin 107, and the storage bins 404 can be used to place samples more conveniently, and it is more convenient to carry the samples after sampling.

[0053] like Figure 3 as well as Figure 8 As shown, in order to be able to carry multiple extension heads 200 more conveniently, in this embodiment, multiple plug-in rods 402 are fixedly connected to the inside of the drawer 400, and the second threading hole 206 on each extension head 200 is inserted into the inside of the plug-in rod 402, which can make it more convenient to carry the extension head 200.

[0054] like Figure 3 As shown, a battery 109 is installed inside the second installation compartment 107 to supply power to the electrical equipment. The battery 109 is located between the storage boxes 403 on both sides and the plug-in rod 402. In this embodiment, the battery 109 can be used to better utilize electricity when carrying outside.

[0055] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. A bottom surface matrix sampler, comprising a mounting box (100), characterized in that: The bottom of the installation box (100) is detachably connected with a plurality of extension heads (200), the bottom of the lowest extension head (200) is detachably connected with a hollow drill bit (300), the inner bottom of the installation box (100) is provided with a second installation bin (107), the bottom of the installation box (100) is provided with a mounting boss (111), the bottom of the mounting boss (111) is provided with a first threading hole (112) connected with the second installation bin (107), the outside of the mounting boss (111) is sequentially plugged with a plurality of extension heads (200), the inside of the second installation bin (107) is provided with a fastening assembly, the fastening assembly fixes the plurality of extension heads (200) and the hollow drill bit (300) to sample the underwater surface matrix.

2. The underwater surface matrix sampler according to claim 1, characterized in that: The upper end of the extension head (200) is fixedly connected with a flange (201), and a plurality of extension heads (200) are inserted into the interior of the flange (201) below.

3. The underwater surface matrix sampler according to claim 2, characterized in that: A rubber ring (202) is provided at the inner bottom of each flange (201), and the plurality of elongated heads (200) are assembled to tighten the assembly and extrude the rubber ring (202).

4. The underwater surface matrix sampler according to claim 3, characterized in that: Sliding grooves (108) are provided on both sides of the interior of the second installation bin (107), and a drawer (400) is slidably connected to the interior of the second installation bin (107). An outer wall of the drawer (400) is provided with an embedded groove (405) for easy pulling out. A through groove is provided at the upper end of the drawer (400). The outer walls of both sides of the drawer (400) are fixedly connected with sliding plates (401) that slide with the interior of the second installation bin (107). Storage boxes (403) are fixedly connected to both sides of the interior of the drawer (400), and a plurality of storage bins (404) are provided on the storage boxes (403) on both sides, and the storage bins (404) store samples.

5. The underwater surface matrix sampler according to claim 4, characterized in that: The fastening assembly comprises a traction rope (304), a winding roller (302) and a second driving motor (301); a mounting boss (111) is arranged at the bottom of the mounting box (100); a first threading hole (112) communicating with the second mounting chamber (107) is arranged at the bottom of the mounting boss (111); a plurality of extension heads (200) are sequentially plugged into the outside of the mounting boss (111); a traction rope (304) is detachably connected to the upper end of the hollow drill bit (300); the traction rope (304) passes through each extension head (200) and the first threading hole (112); the inner bottom of the second mounting chamber (107) is connected to the first threading hole (112); The second installation chamber (107) is fixedly connected to a mounting bracket (110), the mounting bracket (110) is internally rotatably connected to a winding roller (302), a traction rope (304) is wound around the outer wall of the winding roller (302), and the inner bottom of the second installation chamber (107) is detachably connected to a second drive motor (301), the rotating end of the second drive motor (301) is connected to one end of the winding roller (302), and the second drive motor (301) rotates to drive the winding roller (302) to rotate the winding traction rope (304), so that a fixing force is generated between the multiple extension heads (200) and the hollow drill bit (300) to apply a surface matrix and perform sampling.

6. The underwater surface matrix sampler according to claim 5, characterized in that: A torque sensor (303) is connected between the rotating end of the second drive motor (301) and the winding roller (302), and the torque sensor (303) detects the torque of the second drive motor (301) and controls the torque of the second drive motor (301) to be within a preset range.

7. The underwater surface matrix sampler according to claim 6, characterized in that: A second threading hole (206) is provided at the center of the reinforcing plate (203); a penetration groove (204) penetrating the flange (201) and the outer wall of the extension head (200) is provided on the inner wall of the second threading hole (206); an inclined elastic plate (205) is fixedly connected to the flange (201) at the inner wall of the penetration groove (204); the deformation of the elastic plate (205) can prevent the traction rope (304) from falling off.

8. The underwater surface matrix sampler according to claim 7, characterized in that: A storage battery (109) is installed inside the second installation compartment (107). The storage battery (109) supplies power to the electrical equipment. The storage battery (109) is located between the storage boxes (403) on both sides and the plug rods (402).

9. The underwater surface matrix sampler according to claim 8, characterized in that: Adjustable shoulder straps (101) are installed on both sides of the upper end of the installation box (100), and the outer walls on both sides of the installation box (100) are fixedly connected to U-shaped frames (102) with outward openings, and the insides of the U-shaped frames (102) on both sides are rotatably connected to rotating handle rods (103).

10. The underwater surface matrix sampler according to claim 9, characterized in that: A first installation chamber (105) is arranged at the top of the inner side of the installation box (100), and eccentric shafts (106) are rotatably connected to the inner walls of the first installation chamber (105) on both sides, and the initial phases of the eccentric shafts (106) on both sides differ by 180 degrees. First drive motors (104) are detachably connected to the outer walls of one side of the installation box (100), and the rotating ends of the first drive motors (104) on both sides are inserted into the interior of the first installation chamber (105) and are detachably connected to one end of the eccentric shafts (106) on both sides, respectively, and the angular velocities of the first drive motors (104) on both sides are the same, and the axes of the eccentric shafts (106) on both sides are located in the same horizontal plane.

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