Sediment column sampler

Abstract

The present invention discloses a columnar sediment sampler, comprising: a transmission assembly, the transmission assembly comprising a lifting rod, the lifting rod being provided with a lifting ring; a self-locking opening and closing assembly, the self-locking opening and closing assembly being connected to the transmission assembly; a sampling tube, the sampling tube being arranged below the self-locking opening and closing assembly; a rotating barrel mouth, the rotating barrel mouth being arranged below the sampling tube, the sampling tube being respectively connected to the self-locking opening and closing assembly and the rotating barrel mouth through a supporting rod. The columnar sediment collector of the present invention can collect sediments from soft river bottoms, and can also collect sediments from the bottom of hard rock formations, and has strong adaptability; by providing a self-locking opening and closing assembly, leakage of sediment samples can be prevented, and the sampling tube can also be protected.

Description

Technical Field

[0001] The invention belongs to the technical field of hydrology and water environment detection, and in particular relates to a columnar sediment sampler. Background Art

[0002] Sediments in reservoirs, lakes, rivers and other water bodies record information such as the material cycle and development and evolution of the basin. The collection of bottom sediments is of great value for the study of material cycle evolution and the protection of river and lake ecological environment. At present, columnar sediment sampling devices at home and abroad are either complex in design, high in cost, and not convenient to operate; in addition, the existing sampling devices are very likely to cause sample loss when packaging samples. Summary of the invention

[0003] In order to solve the above problems, an embodiment of the present invention provides a columnar sediment sampler.

[0004] The columnar sediment sampler of the present invention comprises: a transmission assembly, the transmission assembly comprises a lifting rod, and a lifting rod is provided with a lifting ring; a self-locking opening and closing assembly, the self-locking opening and closing assembly is connected to the transmission assembly; a sampling tube, the sampling tube is arranged below the self-locking opening and closing assembly; a rotating barrel mouth, the rotating barrel mouth is arranged below the sampling tube, and the sampling tube is respectively connected to the self-locking opening and closing assembly and the rotating barrel mouth through a support rod.

[0005] Optionally, the transmission assembly further includes a transmission top seat and a transmission base, the transmission top seat and the transmission base are fixedly connected by a connecting rod, a top seat through hole is provided at the center position of the transmission top seat, and a base through hole is provided at the center position of the transmission base, the top seat through hole is circular, and the base through hole is rectangular.

[0006] Optionally, a clamping block is provided at the bottom of the lifting rod, and the clamping block is a rectangular clamping block that can pass through the through hole of the base.

[0007] Optionally, the transmission assembly further includes a transmission assembly housing, the top of the lifting rod passes through the transmission assembly housing, the outer sleeve of the lifting rod is provided with a thick diameter spring and a thin diameter spring, the thin diameter spring is located outside the thick diameter spring, the upper ends of the thick diameter spring and the thin diameter spring both pass through the transmission top seat and are connected to the top of the transmission assembly housing, the lower end of the thin diameter spring is connected to the transmission base, and the diameter of the thin diameter spring is larger than the long side length of the base through hole.

[0008] Optionally, an annular limit platform is provided on the inner wall of the transmission component housing, the transmission top seat is provided between the limit platform and the transmission component housing, and the transmission top seat is rotatably connected to the limit platform.

[0009] Optionally, the self-locking opening and closing assembly includes a self-locking rod and a self-locking shell, the self-locking shell is provided with an inclined groove, one end of the self-locking rod can slide in the inclined groove, the other end of the self-locking rod is connected to the connecting rod, the self-locking shell is located below the outside of the transmission assembly shell, and the self-locking shell is fixedly connected to the transmission assembly shell.

[0010] Optionally, the sampling tube is a hollow tube, and the outer wall of the sampling tube is a transmission outer wall, which is located below the outside of the self-locking shell, and the transmission outer wall is fixedly connected to the self-locking shell.

[0011] Optionally, the rotating barrel mouth includes a rotating ring fixedly connected to the transmission outer wall, a supporting ring rotatably connected to the rotating ring, and blades, the rotating ring is located in the inner ring of the supporting ring, and the rotating ring is rotatably connected to the supporting ring through a bearing, and the blades are arranged on the rotating ring and the supporting ring.

[0012] Optionally, the rotating ring is provided with a plurality of rotating shafts along the circumference, the supporting ring is provided with a plurality of guiding shafts along the circumference, one end of the blade is provided with an axial hole and a guide groove, the guide groove is provided at the outer end of the axial hole, the other end of the blade is a baffle, the blade passes through the rotating shaft provided on the rotating ring through the axial hole, the guide shaft on the supporting ring can move in the guide groove on the blade, and the baffle at the other end of the blade realizes the opening and closing of the barrel mouth during rotation.

[0013] The beneficial effects of the present invention are that the columnar sediment collector of the present invention can collect sediments from soft river bottoms and can also collect sediments from the bottom of hard rock formations, and has strong adaptability; it has a simple structure and is easy to operate, and can achieve self-locking after sampling is completed by arranging a self-locking opening and closing component, which can prevent leakage of sediment samples and protect the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of the columnar sediment collector of the present invention.

[0015] Figure 2 It is a structural schematic diagram of the self-locking opening and closing assembly of the present invention.

[0016] Figure 3 It is a structural schematic diagram of the transmission assembly of the present invention.

[0017] Figure 4 It is a structural schematic diagram of the rotating barrel mouth of the present invention.

[0018] Reference numerals:

[0019] Transmission assembly 1; lifting rod 101; transmission top seat 102; transmission base 103; connecting rod 104; thick-diameter spring 105; thin-diameter spring 106; transmission assembly housing 107; block 108; limit table 109; reset opening and closing switch 110; self-locking opening and closing assembly 2; self-locking rod 201; inclined groove 202; self-locking housing 203; sampling tube 3; transmission outer wall 301; rotating barrel mouth 4; rotating ring 401; rotating shaft 402; support ring 403; guide shaft 404; blade 405; guide groove 406; shaft hole 407; support rod 5. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0021] like Figure 1-Figure 4 As shown, the columnar sediment sampler of the present invention comprises: a transmission assembly 1, a self-locking opening and closing assembly 2, a sampling tube 3 and a rotating barrel mouth 4, the transmission assembly 1 comprises a lifting rod 101, the lifting rod 101 is provided with a lifting ring, the lifting ring is located at the upper part of the lifting rod 101, and the lifting ring is used to connect a sling, a wire rope, etc., so as to facilitate the lifting of the transmission assembly 1 and provide power for the whole device; the self-locking opening and closing assembly 2 is connected to the transmission assembly 1; the sampling tube 3 is arranged below the self-locking opening and closing assembly 2, and the collection tube 3 is used to store the collected sediment; the rotating barrel mouth 4 is arranged below the sampling tube 3, and the sampling tube 3 is respectively connected to the self-locking opening and closing assembly 2 and the rotating barrel mouth 4 through the support rod 5, and the rotating barrel mouth 4 is the entrance for collecting sediment. After completing the collection of sediment, the self-locking opening and closing assembly 2 can keep the barrel mouth sealed to ensure that the sediment entering the sampling tube 3 does not leak.

[0022] The transmission assembly 1 includes a lifting rod 101, a transmission top seat 102, a transmission base 103 and a transmission assembly housing 107. The transmission top seat 102 and the transmission base 103 are fixedly connected by a connecting rod 104. A top seat through hole is provided at the center of the transmission top seat 102, and a base through hole is provided at the center of the transmission base 103. The top seat through hole is circular, and the base through hole is rectangular. A clamping block 108 is provided at the bottom of the lifting rod 101. The clamping block 108 is a rectangular clamping block and can pass through the base through hole.

[0023] The top and bottom of the transmission component housing 107 are both provided with openings. The top of the lifting rod 101 passes through the top opening of the transmission component housing 107. The outer sleeve of the lifting rod 101 is provided with a thick-diameter spring 105 and a thin-diameter spring 106. The thin-diameter spring 106 is sleeved on the outside of the thick-diameter spring 105. The diameter of the top opening of the transmission component housing 107 is smaller than the diameters of the thick-diameter spring 105 and the thin-diameter spring 106. Therefore, the upper ends of the thick-diameter spring 105 and the thin-diameter spring 106 pass through the transmission top seat 102 and are connected to the top of the transmission component housing 107. The diameter of the thin-diameter spring 106 is larger than the long side length of the base through hole, and the lower end of the thin-diameter spring 106 is connected to the transmission base 103; the diameter of the thick-diameter spring 105 is smaller than the long side length of the block, and the lower end of the thick-diameter spring 105 is a free end.

[0024] An annular limiting platform 109 is provided on the inner wall of the transmission component housing 107 , and the transmission top seat 102 is provided between the limiting platform 109 and the top of the transmission component housing 107 .

[0025] A reset opening and closing switch 110 is also provided on the outer peripheral surface of the transmission top seat 102, and a horizontally arranged long through hole corresponding to the position of the reset opening and closing switch 110 is provided on the transmission component housing 107. The reset opening and closing switch 110 can move in the long through hole as the transmission top seat 102 rotates. The reset opening and closing switch 110 is connected to the self-locking opening and closing component 2, and the movement of the reset opening and closing switch 110 in the long through hole can also drive the self-locking rod 201 to move in the inclined groove 202.

[0026] The self-locking opening and closing assembly 2 includes a self-locking rod 201 and a self-locking housing 203 . The self-locking housing 203 is provided with an inclined groove 202 . One end of the self-locking rod 201 is a free end and can slide in the inclined groove 202 .

[0027] The function of the reset on-off switch 110 is to open the rotating barrel mouth 4 at the bottom of the sampling barrel. It can be used to open the rotating barrel mouth 4 and take out the sampling tube 3 after completing a sediment collection. It can also be used to open the rotating barrel mouth 4 before sampling in the water to facilitate sampling of the sampling barrel 3.

[0028] By pushing the raised reset opening and closing switch 110, the free end of the self-locking rod 201 slides to the bottom in the inclined groove 202, the transmission base 103 and the transmission top seat 102 move to the end away from the rotating barrel mouth 4, the self-locking opening and closing assembly 2 is started, and the rotating barrel mouth 4 is opened.

[0029] When the sampling is completed, the self-locking rod 201 is pushed back to the top of the inclined slot 202, and the transmission base 103 and the transmission top seat 102 move to the end away from the rotating barrel mouth 4, and the rotating barrel mouth 4 is closed.

[0030] The top of the self-locking rod 201 is fixedly connected to one of the connecting rods 104 , and the bottom of the transmission base 103 is fixedly connected to the rotating barrel mouth 4 through a transmission rod (not shown).

[0031] The self-locking housing 203 is located below the outer portion of the transmission assembly housing 107, and the lower portion of the self-locking housing 203 is connected to the rotating barrel mouth 4 through the support rod 5. The rotation of the self-locking rod 201 will drive the transmission top seat 102 and the transmission base 103 to rotate through the connecting rod 104, and the rotation of the transmission base 103 will drive the rotating barrel mouth 4 to rotate through the transmission rod, thereby completing the opening and closing of the rotating barrel mouth 4.

[0032] The sampling tube 3 is a hollow tube, and the outer wall of the sampling tube 3 is a transmission outer wall 301 . The transmission outer wall 301 is located below the outside of the self-locking housing 203 .

[0033] The rotating barrel mouth 4 includes a rotating ring 401 fixedly connected to the transmission rod at the bottom of the transmission base 103, a support ring 403 and a blade 405 rotatably connected to the rotating ring 401. The rotating ring 401 is located in the inner ring of the support ring 403, and the rotating ring 401 is rotatably connected to the support ring 403 through a bearing. The blade 405 is arranged on the rotating ring 401 and the support ring 403.

[0034] A plurality of rotating shafts 402 are circumferentially arranged on the rotating ring 401, a plurality of guide shafts 404 are circumferentially arranged on the supporting ring 403, an axial hole 407 and a guide groove 406 are arranged at one end of the blade 405, the guide groove 406 is arranged at the outer end of the axial hole 407, the other end of the blade 405 is a baffle, the blade 405 passes through the rotating shaft 402 through the axial hole 407 and is arranged on the rotating ring 401, the guide shaft 404 on the supporting ring 403 can move in the guide groove 406 on the blade 405, and the baffle at the other end of the blade 405 realizes the opening and closing of the barrel mouth during the rotation process.

[0035] When the transmission base 103 rotates, the rotating ring 401 is driven to rotate, and the rotation of the rotating ring 401 drives the blade 405 to rotate around the rotating shaft 402. The rotation of the blade 405 causes the guide shaft 404 to move in the guide groove 406, and the baffle at the other end of the blade 405 realizes the opening and closing of the barrel mouth.

[0036] Before using the device, the self-locking opening and closing assembly 2 is adjusted in advance so that the self-locking rod 201 moves to the bottom of the slide groove 202 and ensures that the rotating barrel mouth 4 is in an open state.

[0037] From the sampling position of the lake or river, hang the top lifting rod 101 with a sling, wire rope, etc., and put the device into the water. During this process, the self-locking opening and closing component 2 is not activated, and the lifting rod 101 is pulled upward without starting the rotating tube mouth 4, and the sampling tube 3 remains in an open state. When the bottom of the device contacts the mud on the bottom of the water, the sediment enters the sampling tube 3. When the sampling tube 3 reaches the bottom of the sampling point, the device is supported by the bottom, pushing the self-locking rod 201 to move upward along the slide groove 202. During the movement, the transmission top seat 102 and the transmission base 103 are driven to rotate, and the block 108 can clamp the transmission base 103. At the same time, the transmission rod is driven to rotate. During the rotation of the transmission rod, the rotating ring 401 drives the rotating shaft 402 to rotate. The rotation of the rotating shaft 402 drives the blade 405 to slide along the guide groove 404 to close the orifice. The reset opening and closing switch 110 is in the closed position. During the recovery process, the bottom of the tube remains sealed to ensure that the mud entering the tube does not leak.

[0038] In the description of the present invention, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A columnar sediment sampler, characterized in that: include: A transmission assembly (1), the transmission assembly (1) comprising a lifting rod (101), the lifting rod (101) being provided with a lifting ring; A self-locking opening and closing component (2), wherein the self-locking opening and closing component (2) is connected to the transmission component (1); A sampling tube (3), wherein the sampling tube (3) is arranged below the self-locking opening and closing component (2); A rotating barrel mouth (4), wherein the rotating barrel mouth (4) is arranged below the sampling tube (3), and the sampling tube (3) is connected to the self-locking opening and closing component (2) and the rotating barrel mouth (4) respectively through a support rod (5); The transmission assembly (1) further comprises a transmission top seat (102) and a transmission base (103), wherein the transmission top seat (102) and the transmission base (103) are fixedly connected by a connecting rod (104), a top seat through hole is provided at the center of the transmission top seat (102), and a base through hole is provided at the center of the transmission base (103), wherein the top seat through hole is circular and the base through hole is rectangular; A clamping block (108) is provided at the bottom of the lifting rod (101). The clamping block (108) is a rectangular clamping block and can pass through a through hole of the base.

2. The columnar sediment sampler according to claim 1, characterized in that: The transmission assembly (1) further comprises a transmission assembly housing (107), the top of the lifting rod (101) passes through the transmission assembly housing (107), the outer sleeve of the lifting rod (101) is provided with a thick-diameter spring (105) and a thin-diameter spring (106), the thin-diameter spring (106) is located outside the thick-diameter spring (105), the upper ends of the thick-diameter spring (105) and the thin-diameter spring (106) pass through the transmission top seat (102) and are connected to the top of the transmission assembly housing (107), the lower end of the thin-diameter spring (106) is connected to the transmission base (103), the diameter of the thin-diameter spring (106) is larger than the long side length of the base through hole, and the bottom of the transmission base (103) is connected to the rotating barrel mouth (4) through the transmission rod.

3. The columnar sediment sampler according to claim 2, characterized in that: An annular limiting platform (109) is provided on the inner wall of the transmission component housing (107), and the transmission top seat (102) is provided between the limiting platform (109) and the top of the transmission component housing (107).

4. The columnar sediment sampler according to claim 3, characterized in that: The self-locking opening and closing assembly (2) comprises a self-locking rod (201) and a self-locking housing (203); an inclined groove (202) is provided on the self-locking housing (203); one end of the self-locking rod (201) is capable of sliding in the inclined groove (202); the other end of the self-locking rod (201) is connected to a connecting rod (104); and the self-locking housing (203) is located below the exterior of a transmission assembly housing (107).

5. The columnar sediment sampler according to claim 4, characterized in that: The sampling tube (3) is a hollow tube, and the outer wall of the sampling tube (3) is a transmission outer wall (301), and the transmission outer wall (301) is located below the outside of the self-locking housing (203).

6. The columnar sediment sampler according to claim 5, characterized in that: The rotating barrel mouth (4) comprises a rotating ring (401) fixedly connected to the transmission base (103), a supporting ring (403) rotatably connected to the rotating ring (401), and a blade (405); the rotating ring (401) is located on the inner ring of the supporting ring (403), and the rotating ring (401) is rotatably connected to the supporting ring (403) via a bearing; and the blade (405) is provided on the rotating ring (401) and the supporting ring (403).

7. The columnar sediment sampler according to claim 6, characterized in that: The rotating ring (401) is provided with a plurality of rotating shafts (402) along the circumference, the supporting ring (403) is provided with a plurality of guiding shafts (404) along the circumference, one end of the blade (405) is provided with an axial hole (407) and a guiding groove (406), the guiding groove (406) is provided at the outer end of the axial hole (407), the other end of the blade (405) is a blocking piece, the blade (405) passes through the axial hole (407) and the rotating shaft (402) and is provided on the rotating ring (401), the guiding shaft (404) on the supporting ring (403) is movable in the guiding groove (406) on the blade (405), and the blocking piece at the other end of the blade (405) realizes the opening and closing of the barrel mouth during the rotation process.

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