A sediment sampling device

Abstract

A sediment sampling device belongs to the technical field of sampling devices for physical and chemical tests, and includes a support, a pulling mechanism is provided on the support, a pressing mechanism is provided on the support, a plurality of telescopic mechanisms connected end to end are provided on the pressing mechanism, and a sampling piece is provided at the lower end of the telescopic mechanism. When the sediment is sampled, the present invention can limit the telescopic mechanism and the sampling piece, thereby ensuring that the sampling piece 5 can be vertically inserted into the sediment. It is convenient for the sampling piece to penetrate into the sediment and move out of the sediment, reducing the difficulty of sediment sampling. The opening and closing control of the lower end of the inner tube is performed by active control, thereby ensuring the reliability of the opening and closing control.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices for physical and chemical tests, and in particular to a bottom mud sampling device. Background Art

[0002] Sediment sampling devices are used to sample riverbeds, lakebeds, and pond bottoms. Currently, there are two types of samplers: tube samplers and grab samplers. Grab samplers are often used to sample surface sediments because they do not have the function of reaching in; tube samplers can penetrate into the sediment to a certain depth, so their application range is wider than that of grab samplers.

[0003] The existing tube sampler generally includes an outer protective tube, a cutting ring is provided at the lower end of the outer protective tube, a pair of opening and closing plates are rotatably provided inside the cutting ring, or a sealing ball is placed at the upper end of the cutting ring, an inner sampling tube is provided inside the outer protective tube, and a plurality of push rods are provided at the upper end of the outer protective tube by threaded connection, and a T-shaped handle is provided at the upper end of the push rod. When sampling, the sampler connects a plurality of push rods according to the water depth to facilitate pushing the outer protective tube downward, and after connection, the T-shaped handle is installed on the push rod at the upper end. Then the sampler inserts the outer protective tube into the bottom mud, and hammers the T-shaped handle with a rubber hammer to move the outer protective tube downward. When the outer protective tube moves downward, the opening and closing plate opens or the sealing ball moves upward due to the pushing effect of the bottom mud. Then the bottom mud enters the inner sampling tube through the cutting ring. When the outer protective tube penetrates into the bottom mud for a certain distance, the sampler then pulls the outer protective tube upward through the T-shaped handle. During the upward movement, the opening and closing plate is closed or the sealing ball is re-stuck on the upper end of the cutting ring to seal the cutting ring. Finally, the outer protective tube is pulled out of the bottom mud. After being pulled out, the sampled bottom mud is discharged and various detection operations are carried out.

[0004] The existing tube samplers have the following problems when in use: First, due to the lack of necessary limiters on the external protective tube, it is not possible to ensure that the external protective tube is vertically inserted into the bottom mud, which affects the sampling results of the bottom mud at different depths. Second, when the bottom mud is dense or hard, it is difficult to penetrate the external protective tube by hammering, and the sampling work intensity of the sampler is relatively high. Third, the existing opening and closing method has the problem of inflexible opening and closing. Especially when closing, due to the presence of bottom mud, it is easy for the opening and closing plate and the sealing ball to return to the closed state, which leads to leakage of some bottom mud when it is drawn out. Summary of the invention

[0005] The present invention provides a sediment sampling device to address the deficiencies of the above-mentioned prior art, solve the problems of inability to perform vertical sampling, sampling difficulty, inflexible opening and closing, and improve the sealing effect after closing.

[0006] In order to achieve the purpose of the present invention, the following technologies are proposed:

[0007] A bottom mud sampling device includes a support, a pulling mechanism is provided on the support, a pressing mechanism is provided on the support, a plurality of telescopic mechanisms connected end to end are provided on the pressing mechanism, and a sampling piece is provided at the lower end of the telescopic mechanism. The support has a base plate, a middle hole is provided at the geometric center of the base plate, the telescopic mechanism is inserted into the middle hole, and a pulling rope is provided on the pulling mechanism. The pressing mechanism is used for the rotation of the telescopic mechanism and acts on the upper end of the telescopic mechanism to make the telescopic mechanism move up and down. The sampling piece includes an outer tube, a plurality of spiral sheets are provided on the outer periphery of the outer tube, an inner tube is provided inside the outer tube, a rubber plug is provided inside the inner tube, a push-pull rod is provided on the rubber plug, and the pulling rope is provided at the upper end of the push-pull rod. When the telescopic mechanism of the support moves, the middle hole on the support guides the movement of the telescopic mechanism, and in order to facilitate the sampling operation, the support can be placed on a shallow pool bottom, riverbed, or lakebed, or the support can be fixed on a ship hull for sampling. The pressing mechanism can not only act on the upper end of the telescopic mechanism to make the sampling piece move up and down, so as to facilitate the sampling operation of the sampling tube, but also make the sampling piece rotate, so as to facilitate the sampling of the bottom mud through the sampling piece. In order to facilitate the sampling piece to go deep into the bottom mud, a spiral piece is also provided on the outer periphery of the outer tube. When the sampling is completed, the rubber plug can absorb the bottom mud in the inner tube by negative pressure, and the pulling rope can also pull the rubber plug upward when the sampling piece moves downward. At the same time, the rubber plug is also convenient for pushing the sampled bottom mud out of the inner tube.

[0008] Further, the support includes a plurality of rotating heads arranged on the lower wall of the base plate, a pair of rotating side plates are rotatably arranged at the lower end of the rotating head, an outer plate is arranged on the rotating side plate, a waist-shaped hole is opened on the outer plate along its length direction, a screw is inserted in the waist-shaped hole, a telescopic concave plate is arranged at the inner end of the screw, a support plate is rotatably arranged at the lower end of the telescopic concave plate, a nut is arranged at the outer end of the screw, and the nut is preferably a butterfly nut, and the nut is located on the outer side of the outer plate. So that the extension length of the lower end of the telescopic concave plate can be adjusted as needed, so as to achieve the purpose of adjusting the height of the base plate according to actual needs. A limit plug is inserted at the upper end of the outer plate, a limit plate is arranged at the outer end of the limit plug, the limit plate is located on the outer side of the outer plate, a movable vertical plate is arranged on the limit plate, a limit top plate is arranged at the upper end of the movable vertical plate, the movable vertical plate is passed on the base plate, and the limit top plate is located above the base plate. A rotating pressing plate is arranged above the limit top plate, a rotating shaft is arranged at the outer end of the rotating pressing plate, the rotating shaft is rotatably arranged on the base plate, and a lever is arranged at the inner end of the rotating pressing plate. The rotatable rotating pressure plate can act on the upper wall of the limit plate to limit it and ensure that the limit plug plate is stably inserted in the outer plate and pressed against the outer wall of the outer plate through the limit plate, thereby locking the rotation angle of the rotating side plate.

[0009] In summary, this solution is mainly for facilitating the placement of the support, and it has the advantages of being easy to store and adjust the height of the substrate.

[0010] Furthermore, an L-shaped clip is provided at the outer end of the rotating side plate, and the telescopic concave plate is inserted into the L-shaped clip. The L-shaped clip serves as a guide and limiter for the telescopic concave plate to ensure the stability of the L-shaped clip and the telescopic concave plate after connection.

[0011] Furthermore, the pulling mechanism includes a vertical rod mounted on a base plate, a rotating plate is rotatably provided at the upper end of the vertical rod, an inner extension arm is rotatably provided at the other end of the rotating plate, a sleeve is rotatably provided at the inner end of the inner extension arm, a screw is provided on the sleeve, the upper end of the pulling rope is inserted into the sleeve, the inner end of the screw acts on the pulling rope, a diagonal support plate is provided on the rotating plate, a supporting arc plate is provided at the lower end of the diagonal support plate, the inner wall of the supporting arc plate acts on the outer periphery of the vertical rod, the supporting arc plate and the diagonal support plate play a supporting role on the rotating plate, and the stability of the pulling can be ensured during pulling, and the rotating plate can be rotated outwards to facilitate the insertion and extraction operation of the telescopic mechanism. When the telescopic tube is rotated, the sleeve can make the pulling rope rotate accordingly to prevent the rubber plug from rotating or the pulling rope from being twisted due to the rotation.

[0012] Furthermore, the pressing mechanism includes a circular sleeve installed on the base plate, a rotating sleeve is rotatably provided on the circular sleeve, a gear is installed on the upper end of the rotating sleeve, a plurality of convex portions are formed on the inner circumference of the gear, a rotating ring is rotatably provided on the lower end of the circular sleeve, the rotating ring is located below the rotating sleeve, a support plate is provided on the outer circumference of the support plate, an L-shaped plate is provided on the outer end of the support plate, a U-shaped groove is provided on the horizontal section of the L-shaped plate, a pair of movable rods are passed through the vertical section of the L-shaped plate, a movable block is provided on the inner end of the movable rod, a plurality of latching teeth are provided on the inner end of the movable block, the latching teeth are meshed with the gear, a first spring is provided on the movable rod, the first spring is located between the movable block and the vertical section of the L-shaped plate, an end fixing rod is provided on the outer end of the horizontal section of the L-shaped plate, and a holding rod is provided on the movable block. When the latch rotates around the axis of the rotating sleeve, the latch will drive the gear to rotate, and the gear will drive the telescopic mechanism inside to rotate, and the rotation of the telescopic mechanism will drive the sampling piece to rotate, and as the sampling piece rotates, the spiral piece provided on it will act on the bottom mud, so that the outer tube can penetrate into the bottom mud or be pulled out of the bottom mud. In order to facilitate the rotation operation, a holding rod and an end fixing rod are also provided. When the rotating ring rotates to a certain angle, the sampler pulls the latch outward through the holding rod, and then rotates the rotating ring to the initial position, so as to facilitate the gear rotation operation again.

[0013] Furthermore, a driven wheel is meshed on the gear, a threaded sleeve is provided in the driven wheel, a bearing seat is installed on the base plate, the threaded sleeve is rotatably arranged on the bearing seat, a lifting screw is provided on the threaded sleeve, an upper plate is provided at the upper end of the lifting screw, a rectangular block is provided on the upper plate, an L-shaped arm is sleeved on the rectangular block, a pair of inner rods are provided at the outer end of the upper plate, an end nut is provided at the outer end of the inner rod, a second spring is sleeved on the outer end of the inner rod, an inner top plate is sleeved on the inner rod, the second spring is located between the end nut and the inner top plate, a pair of insertion rods are provided at the upper end of the inner top plate, the insertion rods are penetrated through the rectangular block and the outer end of the L-shaped arm, a ring is provided at the inner end of the L-shaped arm, a pressure ring is rotatably provided in the ring, and a plurality of clamping strips are provided on the inner periphery of the pressure ring. When the gear rotates, the driven wheel will rotate with the gear, and the rotation of the driven wheel drives the wire sleeve to rotate. When the wire sleeve rotates, it will make the lifting screw rod move up and down, and the lifting and moving of the lifting screw rod will drive the telescopic mechanism connected to it by screws to move up and down through the pressure ring, which is convenient for the operation of inserting and removing the sampling piece. In order to facilitate the operation of inserting the telescopic mechanism, the insertion rod and the rectangular block are set. When the telescopic mechanism is inserted on the gear, the L-shaped arm is first removed from the rectangular block, and then the pressure ring is re-set on the upper end of the telescopic mechanism, and then the insertion rod is inserted on the rectangular block.

[0014] Furthermore, the telescopic mechanism includes a telescopic tube, a plurality of vertical grooves are provided on the outer circumference of the telescopic tube, and the convex portion is inserted into the vertical groove so that the telescopic tube can only move in the vertical direction, and at the same time, the telescopic tube can be driven to rotate by the rotation of the gear. A rectangular hole is provided on the outer circumference of the telescopic tube, and a plurality of limit strips are provided on the inner circumference of the lower end of the telescopic tube.

[0015] The telescopic mechanism also includes a connecting pipe, the upper end of which is provided with a connecting pipe head, the outer periphery of which is symmetrically provided with a pair of connecting grooves, the connecting grooves are in a right-angle trapezoidal structure, and the upper wall of the connecting grooves is an inclined surface.

[0016] The lower end of the connecting pipe arranged at the upper end of the telescopic pipe is arranged at the upper end of the telescopic pipe.

[0017] The telescopic mechanism also includes a connecting ring, a plurality of inlay grooves are provided on the outer circumference of the connecting ring, the connecting ring arranged on the upper end of the telescopic tube is installed on the upper end of the telescopic tube, and the connecting tube is located inside the telescopic tube.

[0018] The connecting ring at the top is inserted into the pressure ring, the clamping strip is inserted into the inlay groove, and the clamping strip is provided with a plurality of latches or screws, and the latches or screws are inserted into the inlay groove. Through this connection mode, the telescopic tube and the sampling piece can be lifted and lowered by moving the lifting screw rod.

[0019] When the telescopic tubes are connected to each other and the telescopic tube and the sampling piece are connected, the limiting inserting strip on the upper end of the telescopic tube is clamped in the embedding groove of the connecting ring at the upper end of the telescopic tube at the lower end. When the two telescopic tubes are connected with each other through mutual insertion, the stability of the connection can be significantly improved through the clamping strip and the embedding groove to prevent the adjacent two telescopic tubes or the telescopic tube and the sampling piece from rotating relative to each other when the telescopic tube is rotated.

[0020] In order to improve the stability of the connection between the telescopic tubes and between the telescopic tubes and the sampling piece, a pair of limit rings are provided inside the lower end of the telescopic tube. A rotating thread sleeve is rotatably provided in the limit ring, and a connecting gear is provided on the rotating thread sleeve. A rack is meshed on the connecting gear, and the rack is passed through the rectangular hole. A thread sleeve is connected to the rotating thread sleeve through a thread. A lower ring is provided at the lower end of the thread sleeve. Two pairs of convex plates are provided on the outer periphery of the lower ring. A pressure wheel is rotatably provided at the outer end of each pair of convex plates. A lower ring plate is fixed to the lower end of the telescopic tube by screws. A plurality of notches are opened on the outer periphery of the lower ring plate. Limiting strips are passed through the notches to ensure stability after installation and prevent the lower ring plate from rotating due to the action of the convex plates when the rotating thread sleeve rotates. Two pairs of guide holes are provided on the lower ring plate, and a movable through rod is passed through the guide holes. A limit upper plate is provided at the upper end of the movable through rod at the same end, and a V-shaped spring sheet is provided on the inner side of the limit upper plate. The V-shaped spring sheet is provided on the lower ring plate through a pair of notched bayonet pins. An inner pressure plate is provided on the limit upper plate, and an inclined wall is formed on the outer wall of the inner pressure plate. The upper end of the inclined wall extends inwardly, and the pressure wheel acts on the outer wall of the inner pressure plate. A movable head is provided at the lower end of the movable through rod at the same end, and a clamping head is provided on the inner wall of the movable head. When the telescopic tubes are connected, the inner wall of the movable head at the upper end acts on the outer periphery of the connecting pipe head at the lower end, and the clamping head at the upper end is passed through the connecting groove of the connecting pipe head at the lower end. When connecting, the connecting gear can be rotated by continuously pulling and pulling the rack, and the rotation of the connecting gear will cause the rotating wire sleeve to rotate, and the rotation of the rotating wire sleeve will drive the wire sleeve tube to move downward, and when the wire sleeve tube moves downward, the pressure wheel will act on the inclined wall, thereby causing the clamping head to move inward, and as the clamping head moves inward, its inner end will act on the inclined surface of the connecting groove, thereby causing the telescopic tubes to approach each other and the telescopic tube and the sampling piece to approach each other. In this connection method, when the telescopic tube and the sampling piece rotate, the telescopic tubes will not be disconnected, and the telescopic tube and the sampling piece will not be disconnected, thereby ensuring the reliability of sampling.

[0021] Furthermore, a middle rectangular hole is opened on the rack along its length direction, a connecting middle rod is provided on the middle rectangular hole, and a waist-shaped ring is sleeved on the connecting middle rod. After the above-mentioned rack completes the connection between the telescopic tubes and between the telescopic tubes and the sampling piece, it will be embedded in the rectangular hole to facilitate the rotation and lifting movement of the telescopic tubes and the sampling piece, and in order to facilitate the continuous pulling and pulling operation of the rack, a corresponding waist-shaped ring is also provided.

[0022] Furthermore, the upper and lower ends of the outer tube are respectively provided with internal threaded holes, the inner end of the internal threaded hole is provided with a tapered hole, the inner end of the tapered hole is a small end, and the inner periphery of the outer tube is provided with a plurality of restraint strips, which support the inner tube.

[0023] An external threaded sleeve is connected to the internal threaded hole, a tapered sleeve is provided at the inner end of the external threaded sleeve, the inner wall of the tapered hole acts on the outer periphery of the tapered sleeve, a plurality of contraction seams are provided on the tapered sleeve, the inner periphery of the tapered sleeve acts on the outer periphery of the inner tube to limit the inner tube, so as to prevent the bottom mud from entering between the inner tube and the outer tube during sampling. A rotating ring is provided at the outer end of the external threaded sleeve, a connecting end cap is installed at the upper end of the rotating ring at the upper end, a plurality of connecting holes are provided at the outer periphery of the connecting end cap, and this arrangement also facilitates the removal operation of the inner tube.

[0024] The connecting tube arranged on the sampling piece is installed on the upper end of the connecting end cap, and the connecting ring arranged on the sampling piece is installed on the upper end of the connecting end cap. The above-mentioned connecting tube, connecting tube head and connecting groove are installed on the connecting end cap to facilitate the connection and fixing operation between the telescopic tube and the sampling piece.

[0025] An exhaust valve is provided on the connecting hole to facilitate the discharge of water and air located at the upper end of the inner tube, thereby increasing the amount of bottom mud that the inner tube can accommodate, and when exhausting and draining, the rubber plug will be located above the exhaust valve.

[0026] The upper end of the inner tube is provided with an inner edge, the lower end of the inner tube is provided with a lower circular plate, a pair of fan-shaped holes are symmetrically opened on the lower circular plate, a rotating pin is rotatably provided on the lower circular plate, a conical head is provided at the lower end of the rotating pin, the lower end of the conical head is a small end, a pair of leakage holes are symmetrically opened on the conical head, when the leakage holes are connected with the fan-shaped holes, the bottom mud can enter the inner tube, the upper end of the conical head is provided with a ring plate, the lower wall of the ring plate is provided with a plurality of blocks, when the lower end of the inner tube is opened, the leakage holes can be connected with the fan-shaped holes by rotating the inner tube, when the lower end of the inner tube is closed, the rubber plug is pulled upwards to make the rubber plug act on The inner edge can be rotated to make the rubber plug and the inner edge together, and then the rubber plug can be rotated by pulling the rope, so that the inner tube can be rotated, and the fan-shaped holes can be staggered, and finally the lower end of the inner tube can be closed. Of course, for the convenience of operation, a rotation limit pin can be provided on the lower wall of the fan-shaped hole, and the rotation limit pin is provided on one of the sides of the fan-shaped hole. When the inner tube rotates, the rotation angle of the inner tube can be limited by the rotation limit pin. In order to improve the sealing effect, a U-shaped avoidance groove can be opened at the upper end of the leakage hole. When the inner tube rotates, the rotation limit pin can be stuck in the U-shaped avoidance groove.

[0027] An inner ring is arranged on the inner circumference of the conical sleeve at the lower end, and a plurality of limit slots are arranged on the upper wall of the inner ring. The blocks are inserted into the limit slots. The limit slots and blocks can prevent the conical head from rotating when the inner tube rotates.

[0028] The lower end of the rotating ring at the lower end is connected to the connecting inner ring, and the lower end of the connecting inner ring is provided with a lower conical head, the interior of the lower conical head is a hollow structure, the lower end of the lower conical head is a small end, and the lower end of the lower conical head is provided with a feeding pipe, and the outer periphery of the feeding pipe is provided with a plurality of spiral feeding pieces, so that the feeding pipe can penetrate into the bottom mud. Of course, the spiral feeding piece can be provided on the inner wall of the feeding pipe to increase the feeding speed of the bottom mud. The lower end of the feeding pipe is provided with a plurality of V-shaped notches, and one side of the V-shaped notch is a blade-shaped structure, so as to facilitate the in-depth operation of the sampling piece.

[0029] The push-pull rod is sequentially inserted from bottom to top into a conical sleeve at the upper end, a rotating ring at the upper end, a connecting end cap at the upper end, a connecting pipe at the bottom end, a lower ring plate at the bottom end, and a wire sleeve at the bottom end.

[0030] A rotating notch is opened at the upper end of the push-pull rod, a rotating screw is provided at the upper end of the rotating notch, a rotating block is provided on the rotating screw, the lower end of the pull rope is passed through the rotating block, a pair of locking screws are provided at the lower end of the rotating block, the inner ends of the locking screws act on the lower end of the pull rope, the lower end of the pull rope passes through the rotating block, the pull rope is fixed by the lower end of the rotating block and the bottom of the rotating notch, and the rotation of the rotating block is locked by the provided locking screw, and the pull rope can also be fixed by the locking screw.

[0031] A connecting column is arranged at the lower end of the push-pull rod, and the connecting column is arranged on the rubber plug. An arc groove is opened on the outer circumference of the rubber plug. The arrangement of the arc groove facilitates the operation of pulling out and inserting the rubber plug.

[0032] Furthermore, an exhaust column is threaded in the connecting hole, and a connecting thread head is provided at the inner end of the exhaust column, and the connecting thread head is arranged in the connecting hole. A connecting cover is connected to the outer end of the exhaust column through a thread, and an exhaust pipe is connected to the connecting cover. An exhaust hole is opened at the inner end of the exhaust column, and a conical outer hole is opened at the outer end of the exhaust hole, and a movable hole is opened at the outer end of the conical outer hole. The diameter of the exhaust hole is smaller than the diameter of the movable hole, and a through hole is opened at the outer end of the movable hole. A movable pipe is movably arranged in the through hole, and the inner end of the movable pipe is connected to the exhaust head. The inner end of the exhaust head is formed with a conical surface, and a plurality of connecting holes are opened on the conical surface. The outer periphery of the conical surface is tightly attached to the inner wall of the conical outer hole. A third spring is sleeved on the movable tube, and the third spring is located in the movable hole. The inner end of the third spring acts on the outer end of the exhaust head. When the water depth is large, the exhaust pipe can be extended out of the water surface to facilitate exhaust and drainage. When water or air acts on the inner end of the exhaust head, the exhaust head will move outward, so that the air and water will pass through the connecting hole and be discharged outward along the movable pipe, the perforation and the exhaust pipe.

[0033] The advantages of the above technical solution are:

[0034] When sampling the bottom mud, the invention can limit the telescopic mechanism and the sampling piece, thereby ensuring that the sampling piece can be vertically inserted into the bottom mud; and facilitate the sampling piece to penetrate into the bottom mud and move out of the bottom mud, thereby reducing the difficulty of bottom mud sampling. The opening and closing control of the lower end of the inner tube is carried out by active control, thereby ensuring the reliability of the opening and closing control. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] Figure 1 A three-dimensional structural diagram of the sediment sampling device is shown.

[0037] Figure 2 A three-dimensional structural diagram of the support is shown.

[0038] Figure 3 A three-dimensional structural diagram of the leg part of the support is shown.

[0039] Figure 4 A three-dimensional structural diagram of the pulling mechanism is shown.

[0040] Figure 5 A three-dimensional structural diagram of the rotating part in the pressing mechanism is shown.

[0041] Figure 6 A three-dimensional structural diagram of the pressing part in the pressing mechanism is shown.

[0042] Figure 7 The three-dimensional structure diagram of the telescopic tube in the telescopic mechanism is shown, wherein Figure (a) shows the three-dimensional structure diagram of the telescopic tube from a first perspective, and Figure (b) shows the three-dimensional structure diagram of the telescopic tube from a second perspective.

[0043] Figure 8 The three-dimensional structure diagram of the connecting component in the telescopic mechanism is shown, wherein Figure (c) shows the three-dimensional structure diagram of the connecting component from a first perspective, and Figure (d) shows the three-dimensional structure diagram of the connecting component from a second perspective.

[0044] Fig. 9 A three-dimensional structural diagram of a rack is shown.

[0045] Fig.10 The diagram shows the structure of the sampling piece, wherein (e) shows a cross-sectional view of the sampling piece, and (f) shows a three-dimensional structure view of the sampling piece.

[0046] Fig.11 The diagram shows the structure of some components of the sampling piece, wherein Figure (g) shows a cross-sectional view of the outer tube, Figure (h) shows an assembly diagram of the connecting end cap and the conical sleeve and rotating ring located at the upper end, and Figure (i) shows a cross-sectional view of the exhaust valve.

[0047] Fig.12 The diagram shows the structure of some components of the sampling piece, wherein Figure (j) shows the structure of the inner tube and the conical head at the lower end thereof, Figure (k) shows the structure of the conical sleeve and the rotating ring at the lower end, Figure (l) shows the structure of the lower conical head and the feeding tube, Figure (m) shows a cross-sectional view of the inner tube and the conical head at the lower end thereof, and Figure (n) shows the structure of the rubber plug, the push-pull rod and the pulling rope.

[0048] Description of the accompanying drawings: support 1, pulling mechanism 2, pressing mechanism 3, telescopic mechanism 4, sampling member 5, base plate 100, rotating head 101, rotating side plate 102, outer plate 103, L-shaped clamp 104, telescopic concave plate 105, support plate 106, screw 107, nut 108, waist-shaped hole 109, limit plate 110, limit plug plate 111, rotating shaft 112, rotating pressure plate 113, lever 114, movable vertical plate 115, middle hole 116, limit top plate 117, vertical rod 20, rotating plate 21, diagonal support plate 22, supporting arc plate 23, inner extension arm 24, sleeve 25, screw 26, pulling rope 27, round sleeve 300, rotating sleeve 301, gear 302, convex portion 303, rotating ring 304, support plate 305, L-shaped plate 306, U-shaped groove 307, movable rod 308, first spring 309, movable block 310, latching tooth 311, holding rod 312, end fixing rod 313, bearing seat 314, thread sleeve 315, driven wheel 316, lifting screw rod 317, upper plate 318, rectangular block 319, inner rod 320, end nut 321, second spring 322, inner top plate 323, U-shaped pull ring 324, insertion rod 325, L-shaped arm 326, collar 328, pressure ring 329, clamping strip 330, connecting ring 400, inlay groove 401, connecting pipe 402, connecting pipe head 403, connecting groove 404, telescopic tube 405, vertical groove 406, rectangular hole 407, limit insertion strip 4 08, limiting ring 409, rotating thread sleeve 410, connecting gear 411, rack 412, middle rectangular hole 413, connecting middle rod 414, waist ring 415, thread sleeve 416, lower ring 417, convex plate 418, pressure wheel 419, limiting upper plate 420, inner pressure plate 421, V-shaped spring piece 422, moving through rod 423, lower ring plate 424, guide hole 425, notch 426, movable head 427, clamping head 428, outer tube 500, spiral sheet 501, constraint strip 502, tapered hole 503, internal thread hole 504, external thread sleeve 505, tapered sleeve 506, contraction seam 507, rotating ring 508, connecting end cap 509, connecting hole 510, exhaust column 511, connecting thread head 5 12, connecting cover 513, exhaust pipe 514, exhaust hole 515, movable hole 516, movable pipe 517, exhaust head 518, through hole 519, connecting hole 520, third spring 521, inner tube 522, inner edge 523, lower circular plate 524, fan-shaped hole 525, rotating pin 526, conical head 527, ring plate 528, block 529, leak hole 530, limiting groove 531, connecting inner ring 532, lower conical head 533, feed pipe 534, V-shaped notch 535, spiral feed sheet 536, rubber plug 537, arc groove 538, connecting column 539, push-pull rod 540, rotating notch 541, rotating screw 542, rotating block 543, locking screw 544, inner ring 545. DETAILED DESCRIPTION

[0049] like Figure 1 As shown, a sediment sampling device includes a support 1, a pulling mechanism 2 is provided on the support 1, a pressing mechanism 3 is provided on the support 1, a plurality of telescopic mechanisms 4 connected end to end are provided on the pressing mechanism 3, a sampling piece 5 is provided at the lower end of the telescopic mechanism 4, and the pressing mechanism 3 is used for the rotation of the telescopic mechanism 4 and acts on the upper end of the telescopic mechanism 4 to make the telescopic mechanism 4 move up and down.

[0050] like Figures 1 to 3 As shown, the support 1 includes a base plate 100, a plurality of rotating heads 101 are provided on the lower wall of the base plate 100, a middle hole 116 is opened at the geometric center position of the base plate 100, the telescopic mechanism 4 is penetrated in the middle hole 116, a pair of rotating side plates 102 are rotatably provided at the lower end of the rotating head 101, an outer plate 103 is provided on the rotating side plate 102, a waist-shaped hole 109 is opened on the outer plate 103 along its length direction, a screw rod 107 is penetrated in the waist-shaped hole 109, a telescopic concave plate 105 is provided at the inner end of the screw rod 107, a support plate 106 is rotatably provided at the lower end of the telescopic concave plate 105, a nut 108 is provided at the outer end of the screw rod 107, and the nut 108 is located on the outer side of the outer plate 103. A limit plate 111 is inserted at the upper end of the outer plate 103, and a limit plate 110 is provided at the outer end of the limit plate 111. The limit plate 110 is located at the outer side of the outer plate 103. A movable vertical plate 115 is provided on the limit plate 110. A limit top plate 117 is provided at the upper end of the movable vertical plate 115. The movable vertical plate 115 passes through the base plate 100, and the limit top plate 117 is located above the base plate 100. A rotating pressing plate 113 is provided above the limit top plate 117. A rotating shaft 112 is provided at the outer end of the rotating pressing plate 113. The rotating shaft 112 is rotatably arranged on the base plate 100. A lever 114 is provided at the inner end of the rotating pressing plate 113. An L-shaped clamp 104 is provided at the outer end of the rotating side plate 102, and the telescopic concave plate 105 passes through the L-shaped clamp 104.

[0051] like Figure 4 As shown, the pulling mechanism 2 includes a vertical rod 20 installed on a base plate 100, a rotating plate 21 is rotatably provided at the upper end of the vertical rod 20, an inner extension arm 24 is provided at the other end of the rotating plate 21, a sleeve 25 is rotatably provided at the inner end of the inner extension arm 24, a pulling rope 27 is passed through the sleeve 25, a screw 26 is provided on the sleeve 25, the inner end of the screw 26 acts on the pulling rope 27, an inclined support plate 22 is provided on the rotating plate 21, a supporting arc plate 23 is provided at the lower end of the inclined support plate 22, and the inner wall of the supporting arc plate 23 acts on the outer periphery of the vertical rod 20.

[0052] like Figure 5 and Figure 6As shown, the pressing mechanism 3 includes a circular sleeve 300 mounted on the base plate 100, a rotating sleeve 301 is rotatably provided on the circular sleeve 300, a gear 302 is mounted on the upper end of the rotating sleeve 301, and a plurality of convex portions 303 are formed on the inner circumference of the gear 302, a rotating ring 304 is rotatably provided on the lower end of the circular sleeve 300, the rotating ring 304 is located below the rotating sleeve 301, a support plate 305 is provided on the outer circumference of the support plate 305, an L-shaped plate 306 is provided on the outer end of the support plate 305, a U-shaped groove 307 is provided on the horizontal section of the L-shaped plate 306, and a pair of movable A movable rod 308 is provided with a movable block 310 at the inner end of the movable block 310, and a plurality of latch teeth 311 are provided at the inner end of the movable block 310, which mesh with the gear 302. A first spring 309 is sleeved on the movable rod 308, and the first spring 309 is located between the movable block 310 and the vertical section of the L-shaped plate 306. An end fixing rod 313 is provided at the outer end of the horizontal section of the L-shaped plate 306. A holding rod 312 is provided on the movable block 310, and the holding rod 312 is inserted into the U-shaped groove 307 when moving outward to guide the movement of the holding rod 312 through the U-shaped groove 307.

[0053] The gear 302 is meshed with a driven wheel 316, and a thread sleeve 315 is arranged inside the driven wheel 316. A bearing seat 314 is installed on the base plate 100, and the thread sleeve 315 is rotatably arranged on the bearing seat 314. A lifting screw rod 317 is arranged on the thread sleeve 315, and an upper plate 318 is arranged on the upper end of the lifting screw rod 317. A rectangular block 319 is arranged on the upper plate 318, and an L-shaped arm 326 is sleeved on the rectangular block 319. A pair of inner rods 320 are arranged at the outer end of the upper plate 318, and an end nut 321 is arranged at the outer end of the inner rod 320. The inner rod 320 is provided with a pair of inner rods 320. 0 is sleeved with a second spring 322 at the outer end, an inner top plate 323 is sleeved on the inner rod 320, a U-shaped pull ring 324 is provided on the inner top plate 323, the second spring 322 is located between the end nut 321 and the inner top plate 323, a pair of insertion rods 325 are provided at the upper end of the inner top plate 323, the insertion rods 325 are passed through the outer ends of the rectangular block 319 and the L-shaped arm 326, a ring 328 is provided at the inner end of the L-shaped arm 326, a pressure ring 329 is rotatably provided inside the ring 328, and a plurality of clamping strips 330 are provided on the inner periphery of the pressure ring 329.

[0054] like Figures 6 to 9 As shown, the telescopic mechanism 4 includes a telescopic tube 405, the upper end of the telescopic tube 405 is provided with a connecting end ring, the outer periphery of the telescopic tube 405 is provided with a plurality of vertical grooves 406, the convex portion 303 is penetrated into the vertical grooves 406, the outer periphery of the telescopic tube 405 is provided with a rectangular hole 407, and the inner periphery of the lower end of the telescopic tube 405 is provided with a plurality of limiting inserts 408.

[0055] The telescopic mechanism 4 also includes a connecting tube 402, the upper end of which is provided with a connecting tube head 403, and the outer periphery of the connecting tube head 403 is symmetrically provided with a pair of connecting grooves 404, the connecting grooves 404 are in a right-angle trapezoidal structure, and the upper wall of the connecting grooves 404 is an inclined surface. The lower end of the connecting tube 402 arranged on the telescopic tube 405 is arranged on the connecting end ring at the upper end of the telescopic tube 405.

[0056] The telescopic mechanism 4 further includes a connecting ring 400 , and a plurality of inlay grooves 401 are formed on the outer circumference of the connecting ring 400 . The connecting ring 400 disposed on the telescopic tube 405 is installed on the connecting end ring, and the connecting tube 402 is located inside the telescopic tube 405 .

[0057] Combination Figure 6 and Figure 7 As shown, when sampling is performed, that is, when the pressing mechanism 3 and the telescopic mechanism 4 are connected, the connecting ring 400 at the top is inserted into the pressing ring 329, the clamping strip 330 is inserted into the inlay groove 401, and a plurality of latches are inserted into the clamping strip 330, and the latches are inserted into the inlay groove 401.

[0058] A pair of limiting rings 409 are provided inside the lower end of the telescopic tube 405, and a rotating thread sleeve 410 is rotatably provided in the limiting ring 409, and a connecting gear 411 is provided on the rotating thread sleeve 410, and a rack 412 is meshed on the connecting gear 411, and a middle rectangular hole 413 is opened on the rack 412 along its length direction, and a connecting middle rod 414 is provided on the middle rectangular hole 413, and a waist-shaped ring 415 is sleeved on the connecting middle rod 414. The rack 412 is inserted into the rectangular hole 407, and a thread sleeve 416 is connected to the rotating thread sleeve 410 through a thread, and a lower ring 417 is provided at the lower end of the thread sleeve 416, and two pairs of convex plates 418 are provided on the outer periphery of the lower ring 417, and a pressure wheel 419 is rotatably provided at the outer end of each pair of convex plates 418. The lower end of the telescopic tube 405 is fixed with a lower ring plate 424 by screws, and a plurality of notches 426 are provided on the outer circumference of the lower ring plate 424, and the limiting insert 408 is passed through the notches 426. Two pairs of guide holes 425 are provided on the lower ring plate 424, and a movable through rod 423 is passed through the guide holes 425. A limiting upper plate 420 is provided at the upper end of the movable through rod 423 at the same end, and a V-shaped spring piece 422 is provided on the inner side of the limiting upper plate 420. The V-shaped spring piece 422 is arranged on the lower ring plate 424 through a pair of notched bayonet pins.

[0059] An inner pressure plate 421 is provided on the limiting upper plate 420, and the outer wall of the inner pressure plate 421 is formed with an inclined wall, and the upper end of the inclined wall extends inwardly. The pressure wheel 419 acts on the outer wall of the inner pressure plate 421, and a movable head 427 is provided at the lower end of the movable penetration rod 423 at the same end, and a clamping head 428 is provided on the inner wall of the movable head 427.

[0060] When the telescopic tubes 405 are connected, the limiting insert 408 on the upper telescopic tube 405 is clamped in the inlay groove 401 of the connecting ring 400 at the upper end of the lower telescopic tube 405. The inner wall of the movable head 427 at the upper end acts on the outer periphery of the connecting tube head 403 at the lower end, and the clamping head 428 at the upper end is inserted into the connecting groove 404 of the connecting tube head 403 at the lower end.

[0061] like Figures 10 to 12 As shown, the sampling member 5 includes an outer tube 500, a plurality of spiral sheets 501 are arranged on the outer periphery of the outer tube 500, an inner tube 522 is arranged inside the outer tube 500, a rubber plug 537 is arranged inside the inner tube 522, a push-pull rod 540 is arranged on the rubber plug 537, and a pulling rope 27 is arranged at the upper end of the push-pull rod 540. A connecting column 539 is arranged at the lower end of the push-pull rod 540, and the connecting column 539 is arranged on the rubber plug 537, and an arc groove 538 is opened on the outer periphery of the rubber plug 537.

[0062] The upper and lower ends of the outer tube 500 are respectively provided with internal threaded holes 504, the inner end of the internal threaded hole 504 is provided with a tapered hole 503, the inner end of the tapered hole 503 is a small end, and the inner periphery of the outer tube 500 is provided with a plurality of restraint strips 502. The internal threaded hole 504 is connected with an external threaded sleeve 505, the inner end of the external threaded sleeve 505 is provided with a tapered sleeve 506, the inner wall of the tapered hole 503 acts on the outer periphery of the tapered sleeve 506, the tapered sleeve 506 is provided with a plurality of contraction seams 507, the inner periphery of the tapered sleeve 506 acts on the outer periphery of the inner tube 522, the outer end of the external threaded sleeve 505 is provided with a rotating ring 508, the upper end of the rotating ring 508 located at the upper end is installed with a connecting end cap 509, and the outer periphery of the connecting end cap 509 is provided with a plurality of connecting holes 510.

[0063] In order to facilitate the connection and fixation of the telescopic tube 405 and the sampling piece 5, specifically in order to facilitate the connection and installation of the telescopic tube 405 on the connecting end cap 509 of the sampling piece 5, the connecting tube 402 at the bottom end is installed on the upper end of the connecting end cap 509, and the connecting ring 400 at the bottom end is installed on the upper end of the connecting end cap 509.

[0064] The connection hole 510 is provided with an exhaust valve, which includes an exhaust column 511 screwed into the connection hole 510, an inner end of the exhaust column 511 is provided with a connecting thread head 512, and the connecting thread head 512 is provided in the connection hole 510, and the outer end of the exhaust column 511 is connected to a connecting cover 513 through a thread, and the connecting cover 513 is connected to an exhaust pipe 514, and the inner end of the exhaust column 511 is provided with an exhaust hole 515, and the outer end of the exhaust hole 515 is provided with a conical outer hole, and the outer end of the conical outer hole is provided with a movable hole 516, and the straightness of the exhaust hole 515 is 400mm. The movable hole 516 has a diameter smaller than that of the movable hole 516. A through hole 519 is provided at the outer end of the movable hole 516. A movable tube 517 is movably provided in the through hole 519. The inner end of the movable tube 517 is connected with an exhaust head 518. The inner end of the exhaust head 518 is formed with a conical surface. A plurality of connecting holes 520 are provided on the conical surface. The outer periphery of the conical surface is tightly attached to the inner wall of the conical outer hole. A third spring 521 is sleeved on the movable tube 517. The third spring 521 is located in the movable hole 516, and the inner end of the third spring 521 acts on the outer end of the exhaust head 518.

[0065] The inner tube 522 has an inner edge 523 at its upper end, a lower circular plate 524 at its lower end, a pair of fan-shaped holes 525 symmetrically formed on the lower circular plate 524, a rotating pin 526 rotatably formed on the lower circular plate 524, a conical head 527 at its lower end, a small end at its lower end, a pair of leak holes 530 symmetrically formed on the conical head 527, the leak holes 530 being connected to the fan-shaped holes 525 to allow the bottom mud to enter the inner tube 522, a ring plate 528 at its upper end, a plurality of blocks 529 at its lower wall. An inner ring 545 is formed on the inner periphery of the conical sleeve 506 at the lower end, a plurality of position-limiting slots 531 formed on its upper wall, and the blocks 529 pass through the position-limiting slots 531.

[0066] The lower end of the rotating ring 508 located at the lower end is connected to the connecting inner ring 532, and the lower end of the connecting inner ring 532 is provided with a lower conical head 533. The interior of the lower conical head 533 is a hollow structure, and the lower end of the lower conical head 533 is a small end. The lower end of the lower conical head 533 is provided with a feeding pipe 534, and the outer periphery of the feeding pipe 534 is provided with a plurality of spiral feeding plates 536, and the lower end of the feeding pipe 534 is provided with a plurality of V-shaped notches 535.

[0067] The push-pull rod 540 is sequentially passed through the conical sleeve 506 at the upper end, the rotating ring 508 at the upper end, the connecting end cap 509 at the upper end, the connecting tube 402 at the bottom end, the lower ring plate 424 at the bottom end, and the wire sleeve 416 at the bottom end from bottom to top, and the pulling rope 27 is passed through the telescopic tube 405.

[0068] The upper end of the push-pull rod 540 is opened with a rotating notch 541, the upper end of the rotating notch 541 is provided with a rotating screw 542, the rotating screw 542 is provided with a rotating block 543, the lower end of the pull rope 27 is passed through the rotating block 543, and the lower end of the rotating block 543 is provided with a pair of locking screws 544, and the inner end of the locking screw 544 acts on the lower end of the pull rope 27.

[0069] The operation of this embodiment is divided into the preparatory operation before sampling and the operation during sampling. Among them, the preparatory work mainly includes the sleeve connection and fixing operation between the telescopic tubes 405, the sleeve connection and fixing operation between the telescopic tubes 405 and the sampling piece 5, the insertion operation between the telescopic tube 405 and the pressing mechanism 3, the fixing operation of the upper end of the pulling rope 27 and the assembly operation of the sampling piece 5. During the sampling process, the telescopic tube 405 is first moved up and down by the pressing mechanism 3, and the telescopic tube 405 is pulled out by the pressing mechanism 3 after sampling.

[0070] When assembling the sampling piece 5, the following steps are performed:

[0071] The sampler first inserts the inner tube 522 into the outer tube 500, and then screws the conical sleeve 506 onto the outer tube 500. When screwing the conical sleeve 506, the sampler needs to open the block 529 in the limit slot 531, and after connecting and fixing, rotate the inner tube 522 to connect the leak hole 530 and the fan-shaped hole 525. Then the sampler inserts the rubber plug 537 into the inner tube 522. Then the lower conical head 533 is connected to the rotating ring 508 at the lower end, the connecting end cap 509 is connected to the rotating ring 508 at the upper end, and the push-pull rod 540 is inserted into the connecting end cap 509, and the connecting tube 402 and the connecting tube head 403 thereon. Finally, the lower end of the pulling rope 27 is passed through the rotating block 543, and its lower end extends out of the rotating block 543, and then the rotating block 543 is rotated so that the rotating block 543 and the lower end of the rotating notch 541 fix the pulling rope 27, and then the rotating block 543 is locked by the locking screw 544, and the pulling rope 27 is fixed.

[0072] When the telescopic tube 405 and the sampling member 5 are connected, or the telescopic tubes 405 are connected to each other, the operation is performed in the following manner:

[0073] The sampler inserts one end of the telescopic tube 405 with the limiting insertion strip 408 into the embedding groove 401 of the connecting ring 400 on the sampling piece 5 to connect the telescopic tube 405 and the sampling piece 5, and inserts one end of the telescopic tube 405 with the limiting insertion strip 408 into the embedding groove 401 of the connecting ring 400 on the lower end of the telescopic tube 405. After the insertion is completed, the sampler continuously inserts the rack 412 into the rectangular hole 407, and then pulls out the rack 412 by pushing and pulling. When the rack 412 acts on the connecting gear 411, the rotating silk sleeve 410 will rotate, and the rotation of the rotating silk sleeve 410 will drive the silk sleeve 405 to rotate. 16 moves downward in the vertical direction, and when the silk sleeve 416 moves downward, the pressure wheel 419 will act on the inner pressure plate 421, thereby causing the inner pressure plate 421 and the clamping head 428 to move inward, and the V-shaped spring piece 422 will open, and when the clamping head 428 moves inward, its inner end will act on the inclined surface of the connecting groove 404, and finally complete the connection operation. After the connection is completed, the sampler will completely embed the rack 412 in the rectangular hole 407, and during the connection operation, it is necessary to pass the pulling rope 27 through the connecting tube 402, the connecting tube head 403, the lower ring plate 424, and the silk sleeve 416 until it is extended out from the telescopic tube 405 at the uppermost end.

[0074] When placing the support 1, proceed as follows:

[0075] The sampler rotates the rotating side plate 102 outward and pulls out the telescopic concave plate 105 to a certain length as needed. After adjustment, the position of the telescopic concave plate 105 is fixed by the nut 108. After the fixation is completed, the operator moves the limit plug plate 111 downward and inserts the limit plug plate 111 into the outer plate 103, and then rotates the rotating pressure plate 113 by the lever 114, so that the rotating pressure plate 113 limits the limit top plate 117, and finally places the support 1 at the specified position.

[0076] Of course, the substrate 100 can also be directly installed on the sampling ship.

[0077] When the telescopic tube 405 and the support 1 are connected, the operation is performed in the following manner:

[0078] The sampler first rotates the rotating plate 21 to the outside, and then inserts the telescopic tube 405 into the gear 302, and inserts the protrusion 303 into the vertical groove 406. Then the sampler sets the pressure ring 329 on the connecting ring 400 at the upper end. During the setting process, the inner top plate 323 needs to be pulled outward through the U-shaped pull ring 324, and the insertion rod 325 is pulled out. After the pressure ring 329 is set, the tension on the U-shaped pull ring 324 is loosened, and then the inner top plate 323 will move inward under the action of the second spring 322, and the insertion rod 325 is inserted into the rectangular block 319, and finally the pressure ring 329 and the connecting ring 400 are connected by pins or screws.

[0079] When fixing the pulling rope 27, the operation is performed in the following manner:

[0080] The operator rotates the rotating plate 21 inwardly so that the supporting arc plate 23 acts on the vertical rod 20 , and then passes the pulling rope 27 through the sleeve 25 , and then fixes the upper end of the pulling rope 27 by the screw 26 .

[0081] The above operation method will complete the preparation work before sampling, and then the sampling operation will be carried out.

[0082] When sampling, the sampler rotates the rotating ring 304 through the end fixing rod 313. When the rotating ring 304 rotates, it will drive the latch tooth 311 meshing with the gear 302 to rotate. When the latch tooth 311 rotates, it will drive the gear 302 to rotate a certain angle. Then the sampler holds the end fixing rod 313 and the holding rod 312 to disconnect the latch tooth 311 and the gear 302, and then restores the latch tooth 311 until it rotates to the initial position, and then loosens the end fixing rod 313 and the holding rod 312 again to engage the latch tooth 311 and the gear 302, and then rotates the gear 302 again. The rotation of the gear 302 will drive the telescopic tube 405 and the sampling member 5 to rotate, and when the gear 302 rotates, it will drive the driven wheel 316 to rotate, and the rotation of the driven wheel 316 will drive the wire sleeve 315 to rotate. When the wire sleeve 315 rotates, the lifting screw rod 317 will move downward, and the downward movement of the lifting screw rod 317 will cause the pressure ring 329 to act on the upper end of the telescopic tube 405. When the telescopic tube 405 moves downward, the sampling member 5 will move downward and The sampler 5 penetrates into the bottom mud, and when the sampling member 5 moves downward, the bottom mud will move upward into the inner tube 522 through the leak hole 530 and the fan-shaped hole 525. When the sampling member 5 moves downward as a whole, the rubber plug 537 is pulled by the pulling rope 27, so that it moves upward, and when the rubber plug 537 moves upward, it will suck the bottom mud entering the inner tube 522, so that the bottom mud quickly enters the inner tube 522 until the rubber plug 537 moves to the inner edge 523. Then the sampler rotates the sleeve 25 so that the rubber plug 537 drives the inner tube 522 to rotate until the leak hole 530 and the fan-shaped hole 525 are staggered and disconnected. Then the sampler rotates the gear 302 in the opposite direction, and the gear 302 will drive the outer tube 500 to rotate in the opposite direction, so that the spiral piece 501 thereon interacts with the bottom mud and moves it upward. In addition, when the gear 302 rotates, it will drive the lifting screw 317 and other components to move upward through the lifting screw 317 until the sampling piece 5 is pulled out.

[0083] After the sampling piece 5 is pulled out, the telescopic mechanism 4 and the sampling piece 5 are removed from the support 1, and then the telescopic mechanism 4 is removed from the sampling piece 5, and then the inner tube 522 is rotated as needed to make the fan-shaped hole 525 connect with the leakage hole 530 again, and then the rubber plug 537 is pushed by the push-pull rod 540 to make the rubber plug 537 squeeze the bottom mud in the inner tube 522 into the sample tube for subsequent detection operations.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A sediment sampling device, characterized in that: The invention comprises a support (1), wherein a pulling mechanism (2) and a pressing mechanism (3) are provided on the support (1), a plurality of telescopic mechanisms (4) connected end to end are provided on the pressing mechanism (3), and a sampling member (5) is provided at the lower end of the telescopic mechanism (4); The support (1) is provided with a base plate (100), a central hole (116) is provided at a geometric center position of the base plate (100), and the telescopic mechanism (4) is inserted into the central hole (116); The pulling mechanism (2) is provided with a pulling rope (27); The pressing mechanism (3) is used to rotate the telescopic mechanism (4) and acts on the upper end of the telescopic mechanism (4) to cause the telescopic mechanism (4) to move upward and downward; The pressing mechanism (3) comprises a circular sleeve (300) mounted on a base plate (100), a rotating sleeve (301) being rotatably mounted on the circular sleeve (300), a gear (302) being mounted on the upper end of the rotating sleeve (301), a plurality of convex portions (303) being formed on the inner circumference of the gear (302), a rotating ring (304) being rotatably mounted on the lower end of the circular sleeve (300), the rotating ring (304) being located below the rotating sleeve (301), a supporting plate (305) being disposed on the outer circumference of the supporting plate (305), an L-shaped plate (306) being disposed on the horizontal section of the L-shaped plate (306), and a U-shaped groove being formed on the horizontal section of the L-shaped plate (306). (307), a pair of movable rods (308) are provided on the vertical section of the L-shaped plate (306), a movable block (310) is provided at the inner end of the movable rod (308), a plurality of latching teeth (311) are provided at the inner end of the movable block (310), the latching teeth (311) are meshed with the gear (302), a first spring (309) is sleeved on the movable rod (308), the first spring (309) is located between the movable block (310) and the vertical section of the L-shaped plate (306), an end fixing rod (313) is provided at the outer end of the horizontal section of the L-shaped plate (306), and a holding rod (312) is provided on the movable block (310); A driven wheel (316) is meshed with the gear (302), a thread sleeve (315) is provided inside the driven wheel (316), a bearing seat (314) is installed on the base plate (100), the thread sleeve (315) is rotatably arranged on the bearing seat (314), a lifting screw rod (317) is provided on the thread sleeve (315), an upper plate (318) is provided at the upper end of the lifting screw rod (317), a rectangular block (319) is provided on the upper plate (318), an L-shaped arm (326) is sleeved on the rectangular block (319), a pair of inner rods (320) are provided at the outer end of the upper plate (318), and an end nut is provided at the outer end of the inner rod (320). (321), a second spring (322) is sleeved on the outer end of the inner rod (320), an inner top plate (323) is sleeved on the inner rod (320), the second spring (322) is located between the end nut (321) and the inner top plate (323), a pair of insertion rods (325) are provided at the upper end of the inner top plate (323), the insertion rods (325) are passed through the outer ends of the rectangular block (319) and the L-shaped arm (326), a collar (328) is provided on the inner end of the L-shaped arm (326), a pressure ring (329) is rotatably provided inside the collar (328), and a plurality of clamping strips (330) are provided on the inner circumference of the pressure ring (329); The sampling member (5) comprises an outer tube (500), a plurality of spiral sheets (501) are arranged on the outer circumference of the outer tube (500), an inner tube (522) is arranged inside the outer tube (500), a rubber plug (537) is arranged inside the inner tube (522), a push-pull rod (540) is arranged on the rubber plug (537), and a pulling rope (27) is arranged at the upper end of the push-pull rod (540).

2. The sediment sampling device according to claim 1, characterized in that: The support (1) comprises a plurality of rotating heads (101) arranged on the lower wall of a base plate (100); a pair of rotating side plates (102) are rotatably arranged at the lower end of the rotating heads (101); an outer plate (103) is arranged on the rotating side plates (102); a waist-shaped hole (109) is opened on the outer plate (103) along its length direction; a screw rod (107) is passed through the waist-shaped hole (109); a telescopic concave plate (105) is arranged at the inner end of the screw rod (107); a support plate (106) is rotatably arranged at the lower end of the telescopic concave plate (105); a nut (108) is arranged at the outer end of the screw rod (107); and the nut (108) is located on the outer side of the outer plate (103); A limit plug (111) is inserted at the upper end of the outer plate (103), a limit plate (110) is provided at the outer end of the limit plug (111), the limit plate (110) is located on the outer side of the outer plate (103), a movable vertical plate (115) is provided on the limit plate (110), a limit top plate (117) is provided at the upper end of the movable vertical plate (115), the movable vertical plate (115) is passed through the base plate (100), and the limit top plate (117) is located above the base plate (100); A rotating pressure plate (113) is provided above the limiting top plate (117), a rotating shaft (112) is provided at the outer end of the rotating pressure plate (113), the rotating shaft (112) is rotatably disposed on the base plate (100), and a lever (114) is provided at the inner end of the rotating pressure plate (113).

3. The sediment sampling device according to claim 2, characterized in that: An L-shaped clamp (104) is provided at the outer end of the rotating side plate (102), and the telescopic concave plate (105) is inserted into the L-shaped clamp (104).

4. The sediment sampling device according to claim 1, characterized in that: The pulling mechanism (2) comprises a vertical rod (20) mounted on a base plate (100), the upper end of the vertical rod (20) being rotatably provided with a rotating plate (21), the other end of the rotating plate (21) being provided with an inner extension arm (24), the inner side end of the inner extension arm (24) being rotatably provided with a sleeve (25), the sleeve (25) being provided with a screw (26), the upper end of a pulling rope (27) being inserted into the sleeve (25), the inner side end of the screw (26) acting on the pulling rope (27), the rotating plate (21) being provided with an inclined support plate (22), the lower end of the inclined support plate (22) being provided with a supporting arc plate (23), the inner wall of the supporting arc plate (23) acting on the outer periphery of the vertical rod (20).

5. The sediment sampling device according to claim 1, characterized in that: The telescopic mechanism (4) comprises at least one telescopic tube (405), a plurality of vertical grooves (406) are formed on the outer circumference of the telescopic tube (405), and the convex portion (303) is inserted into the vertical groove (406); The lower end of the telescopic tube (405) is connected to the upper end of the sampling member (5), and two adjacent telescopic tubes (405) are sleeved, connected and fixed to each other.

6. The sediment sampling device according to claim 5, characterized in that: The upper and lower ends of the outer tube (500) are respectively provided with internal threaded holes (504), the inner end of the internal threaded hole (504) is provided with a tapered hole (503), the inner end of the tapered hole (503) is a small end, and the inner circumference of the outer tube (500) is provided with a plurality of restraining strips (502); An external threaded sleeve (505) is connected to the internal threaded hole (504), a tapered sleeve (506) is provided at the inner side end of the external threaded sleeve (505), the inner wall of the tapered hole (503) acts on the outer periphery of the tapered sleeve (506), a plurality of contraction seams (507) are provided on the tapered sleeve (506), the inner periphery of the tapered sleeve (506) acts on the outer periphery of the inner tube (522), a rotating ring (508) is provided at the outer side end of the external threaded sleeve (505), a connecting end cap (509) is installed at the upper end of the rotating ring (508) at the upper end, a plurality of connecting holes (510) are opened at the outer periphery of the connecting end cap (509), and the telescopic tube (405) at the lower end is provided at the upper end of the connecting end cap (509); The lower end of the rotating ring (508) located at the lower end is connected to a connecting inner ring (532), the lower end of the connecting inner ring (532) is provided with a lower conical head (533), the interior of the lower conical head (533) is a hollow structure, the lower end diameter of the lower conical head (533) is smaller than the diameter of the upper end thereof, the lower end of the lower conical head (533) is provided with a feed pipe (534), the outer circumference of the feed pipe (534) is provided with a plurality of spiral feed sheets (536), and the lower end of the feed pipe (534) is provided with a plurality of V-shaped notches (535); The push-pull rod (540) is sequentially inserted into the conical sleeve (506) at the upper end, the rotating ring (508) at the upper end, and the connecting end cap (509) at the upper end from bottom to top; The upper end of the push-pull rod (540) is opened to form a rotating notch (541), the upper end of the rotating notch (541) is provided with a rotating screw (542), the rotating screw (542) is provided with a rotating block (543), the lower end of the pulling rope (27) is inserted into the rotating block (543), the lower end of the rotating block (543) is provided with a pair of locking screws (544), and the inner ends of the locking screws (544) act on the lower end of the pulling rope (27); A connecting column (539) is provided at the lower end of the push-pull rod (540), the connecting column (539) is arranged on the rubber plug (537), and an arc groove (538) is provided on the outer periphery of the rubber plug (537).

7. The sediment sampling device according to claim 6, characterized in that: An inner edge (523) is provided at the upper end of the inner tube (522), a lower circular plate (524) is provided at the lower end of the inner tube (522), a pair of fan-shaped holes (525) are symmetrically provided on the lower circular plate (524), a rotating pin (526) is rotatably provided on the lower circular plate (524), a conical head (527) is provided at the lower end of the rotating pin (526), ​​the lower end of the conical head (527) is a small end, a pair of leakage holes (530) are symmetrically provided on the conical head (527), when the leakage holes (530) are connected with the fan-shaped holes (525), the bottom mud can enter the inner tube (522), a ring plate (528) is provided at the upper end of the conical head (527), and a plurality of blocking blocks (529) are provided on the lower wall of the ring plate (528); An inner ring (545) is provided on the inner circumference of the conical sleeve (506) at the lower end, and a plurality of position-limiting slots (531) are provided on the upper wall of the inner ring (545), and the clamping blocks (529) are inserted into the position-limiting slots (531).

8. The sediment sampling device according to claim 6, characterized in that: An exhaust valve is provided on the connecting hole (510); The exhaust valve comprises an exhaust column (511) connected to a connection hole (510) by means of a thread, the inner end of the exhaust column (511) is provided with a connection thread head (512), the connection thread head (512) is provided in the connection hole (510), the outer end of the exhaust column (511) is connected to a connection cover (513) by means of a thread, the connection cover (513) is connected to an exhaust pipe (514), the inner end of the exhaust column (511) is provided with an exhaust hole (515), the outer end of the exhaust hole (515) is provided with a conical outer hole, the outer end of the conical outer hole is provided with a movable hole (516), the diameter of the exhaust hole (515) is smaller than the movable hole (516), and the exhaust hole (515) is provided with a conical outer hole. The movable hole (516) has a diameter of 1.5 mm, a through hole (519) is provided at the outer end of the movable hole (516), a movable tube (517) is movably provided in the through hole (519), the inner end of the movable tube (517) is connected to an exhaust head (518), the inner end of the exhaust head (518) is formed with a conical surface, a plurality of connecting holes (520) are provided on the conical surface, the outer periphery of the conical surface is tightly attached to the inner wall of the conical outer hole, a third spring (521) is sleeved on the movable tube (517), the third spring (521) is located in the movable hole (516), and the inner end of the third spring (521) acts on the outer end of the exhaust head (518).

Images