CN210665132U

CN210665132U - Mud sampler

Info

Publication number: CN210665132U
Application number: CN201920835164.4U
Authority: CN
Inventors: 郑冬梅; 凌忠
Original assignee: Beijing Rongtai Environmental Technology Co ltd
Current assignee: Beijing Rongtai Environmental Technology Co ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-06-02
Anticipated expiration: 2029-06-04

Abstract

The utility model provides a mud sampler, which comprises a sealing cover, an upper sleeve, a connecting cover, a lower sleeve, a sampling head, a gravity hammer, a pull rod and a sampling tube, wherein the sealing cover, the upper sleeve, the connecting cover, the lower sleeve and the sampling head are sequentially arranged and are fixedly connected in a detachable manner; the sampling head comprises a plurality of guide vane structures, the guide vane structures are in contact distribution along the periphery of the second end of the sampling head, and the first end of the sampling head is detachably and fixedly connected with the second end of the lower sleeve; a solid material layer is arranged in the connecting cover and comprises a magnetic material layer with the polarity opposite to that of the gravity hammer, and a groove with the same shape as the magnetic material layer is formed in the bottom of the gravity hammer. The utility model provides a collector portable is fit for the collection to the regional bed mud sample of deep water.

Description

Mud sampler

Technical Field

The utility model belongs to the technical field of environmental monitoring and research, improvement, concretely relates to mud sampler.

Background

In the process of environmental monitoring, research and treatment, the sediments in lakes and seabed areas need to be monitored, the chemical components of the sediments in all levels and the vertical distribution of benthic organisms in the sediments are researched, and a gravity columnar mud sampler needs to be used for columnar collection, so that the natural levels of the sediments are not disturbed. The traditional gravity columnar mud sampler directly inserts the mud sampler into the sediment by means of the self weight, the depth capable of collecting the mud is limited due to the self weight of the mud sampler, only shallow sediment can be collected, and the mud sampler is not suitable for collecting and using research samples in a deepwater area, and the traditional gravity mud sampler is too heavy and can generate potential safety hazards when being placed on a ship.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to solving the above-described problems. It is an object of the present invention to provide a mud sampler that solves any of the above problems. Specifically, the utility model provides a mud sampler of operation and portable in the entering deep sea waters that can be smooth.

In order to solve the technical problem, an object of the present invention is to provide a mud sampler, comprising a sealing cover, an upper sleeve, a connecting cover, a lower sleeve, a sampling head, a gravity hammer, a pull rod and a sampling tube, wherein the sealing cover is sequentially and detachably and fixedly connected with the upper sleeve, the connecting cover, the lower sleeve and the sampling head, the gravity hammer is arranged in the upper sleeve and can reciprocate, the pull rod slidably passes through a hole of the sealing cover and is fixedly connected with the gravity hammer, the sampling tube is arranged in the lower sleeve, and a first end of the lower sleeve is detachably and fixedly connected with the sampling tube; the sampling head comprises a plurality of guide vane structures, the guide vane structures are in contact distribution along the periphery of the second end of the sampling head, and the first end of the sampling head is detachably and fixedly connected with the second end of the lower sleeve; a solid material layer is arranged in the connecting cover and comprises a magnetic material layer with the polarity opposite to that of the gravity hammer, and a groove with the same shape as that of the magnetic material layer is formed in the bottom of the gravity hammer.

Wherein, above-mentioned mud sampler can also have following characteristics:

the guide vane structure is rotatably connected with the second end of the sampling head, the rotating angle is a preset angle, when the second end of the sampling head is arranged below, a closed surface is formed between the guide vane structures, and the preset angle is 0-90 degrees.

Wherein, above-mentioned mud sampler can also have following characteristics:

any one of the guide vane structures comprises a first vane and a second vane, and the first vane and the second vane are mutually matched and contacted; the one end of first blade is equipped with first joint portion, the one end of second blade is equipped with second joint portion, the guide vane structure respectively through first joint portion with second joint portion with the rotatable connection of second end of sampling head works as when sampling head second end is in the below, mutually support between the main part of first blade and the main part of second blade and form the closed surface.

Wherein, above-mentioned mud sampler can also have following characteristics:

the magnetic material layer comprises a first magnetic material layer and a second magnetic material layer, and the cross section of the first magnetic material layer is larger than that of the second magnetic material layer.

Wherein, above-mentioned mud sampler can also have following characteristics:

the cross section of the groove is larger than that of the second magnetic material layer, and the depth of the groove is larger than the height of the second magnetic material layer.

Wherein, above-mentioned mud sampler can also have following characteristics:

the first magnetic material layer is of a cylindrical structure, and the second magnetic material layer is of a cylindrical structure.

Wherein, above-mentioned mud sampler can also have following characteristics:

and a tension device is arranged on the pull rod, and acts on the pull rod to drive the gravity hammer to reciprocate.

Wherein, above-mentioned mud sampler can also have following characteristics:

and a first chest expander and a second chest expander are respectively arranged on two sides of the seal cover.

Wherein, above-mentioned mud sampler can also have following characteristics:

the lateral surface of lower sleeve is provided with the scale along vertical direction, the lateral surface of lower sleeve sets up a plurality of observation holes along vertical direction, the scale with the position of a plurality of observation holes does not coincide.

Wherein, above-mentioned mud sampler can also have following characteristics:

still include the pole that pushes away mud, the lower extreme of pole that pushes away mud sets up the clamp plate, the perimeter of clamp plate with the internal perimeter of sampling tube equals, the vertical a plurality of measuring orifices that set up of lateral surface of pole that pushes away mud.

The utility model discloses a mud sampler adopts detachable fixed connection mode, and is convenient to carry, when carrying out the lightweight to mud sampler, can form the impact force to mud sampler through the reciprocating motion of gravity hammer, realize the operation in the entering deep sea waters that mud sampler can be smooth, one end through the sampling head can form the closing surface that has the bearing function, realize in the sampling tube with the complete sealing of bed mud sample after gathering the completion, realized highly carrying out the reading to each layer of bed mud sample when taking out the bed mud sample simultaneously, thereby work efficiency has been improved.

Other characteristic features and advantages of the invention will become apparent from the following description of exemplary embodiments, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the invention. For a person skilled in the art, other figures can be derived from these figures without inventive effort.

Fig. 1 schematically shows a schematic structural view of an embodiment of a mud sampler according to the present invention;

FIG. 2 is a schematic structural diagram of a sampling head;

FIG. 3 is a schematic structural diagram of a guide vane structure;

FIG. 4 is a schematic view of the first and second vanes of the guide vane structure;

fig. 5 is a schematic structural view of the mud-pushing rod being placed in the sampling tube.

The attached drawings are as follows: 1. sealing the cover; 11. a first chest expander; 12. a second chest expander; 2. an upper sleeve; 3. a connecting cover; 31. a solid layer of material; 311 a magnetic material layer; 3111. a first magnetic material layer; 3112. a second magnetic material layer; 4. a lower sleeve; 41. calibration; 42. an observation hole; 5. a sampling head; 51. a guide vane structure; 511. a first blade; 512. a second blade; 513. a first clamping part; 514. a second clamping part; 6. a gravity hammer; 7. a pull rod; 71. a tension device; 8. a sampling tube; 9. a mud pushing rod; 91. pressing a plate; 92. and (6) measuring the hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The mud sampler of the utility model reduces the weight of the mud sampler, adopts a detachable fixed connection mode, and is convenient to carry; through the design that the gravity hammer is driven by the pull rod to do reciprocating motion to continuously apply impact force to the mud sampler, the mud sampler can collect bottom sediment in a deep water area and bottom sediment deeper, and is particularly suitable for collecting bottom sediment samples in the deep water area.

The following describes in detail a mud sampler according to the present invention with reference to the accompanying drawings.

Fig. 1 shows a schematic structural view of a concrete embodiment of the mud sampler of the present invention, and referring to fig. 1, the mud sampler comprises a sealing cover 1, an upper sleeve 2, a connecting cover 3, a lower sleeve 4, a sampling head 5, a gravity hammer 6, a pull rod 7 and a sampling tube 8, for carrying, each component of the mud sampler of the present invention can be designed into a detachable connection manner, such as a threaded connection, etc., when in use, each component can be used by performing a threaded fixed connection, specifically, the sealing cover 1 and the upper sleeve 2, the connecting cover 3, the lower sleeve 4 and the sampling head 5 are sequentially arranged and detachably fixedly connected, the gravity hammer 6 is arranged in the upper sleeve 2, the pull rod 7 slidably passes through a hole of the sealing cover 1 and is fixedly connected with the gravity hammer 6, the sampling tube 8 is arranged in the lower sleeve, a first end of the lower sleeve 4 is detachably fixedly connected with the sampling tube 8, the sampling head 5 comprises a plurality of guide vane structures 51, the guide vane structures 51 are in contact distribution along the periphery of the second end of the sampling head, and the first end of the sampling head is detachably and fixedly connected with the second end of the lower sleeve 4; the solid material layer 31 is arranged in the connecting cover 3, the solid material layer 31 comprises a magnetic material layer 311 with the polarity opposite to that of the gravity hammer 6, and specifically, in order to enable the gravity hammer 6 to continuously strike at a fixed position of the mud sampler to form forward power in the same direction, a groove 61 with the same shape as the magnetic material layer 311 is arranged at the bottom of the gravity hammer 6.

Fig. 2 is a schematic structural diagram of an embodiment of a sampling head.

As shown in fig. 2, the sampling head 5 may be cylindrical, the sampling head 5 includes a plurality of guide vane structures 51, the plurality of guide vane structures 51 are distributed along the periphery of the second end of the sampling head in a contact manner, the first end of the sampling head is detachably and fixedly connected with the second end of the lower sleeve 4, any one of the guide vane structures 51 is rotatably connected with the second end of the sampling head, the rotation angle is α, when the second end of the sampling head is located below, a closed surface is formed between the plurality of guide vane structures 51, wherein the predetermined angle α is 0 to 90 degrees.

The angle of rotation is the angle that the guide vane structure formed with the inner wall of sampling head in rotatory in-process, and when the sediment that awaits measuring advances into the sampling head from the second end that the sampling head was equipped with guide vane structure 51 or the sampling head did not set up the first end of guide vane structure 2 when the below, all guide vane structures can rotate to paste on the inner wall at the sampling head.

The ratio of the radius of the sampling tube 8 (not shown) to the length L of the guide vane structure 51 is 1: 1.1-1.3, so that the guide vane structure 51 can bear the weight of bottom mud and be sealed and stored in the mud sampler.

Specifically, in the process that the mud sampler descends from the surface of the sediment to be detected to the deep part of the mud layer, due to the upward thrust of the sediment, the guide vane structures 51 of the sampling head 5 are all unfolded upwards, the sediment to be detected enters the sampling pipe 8 through the second end of the sampling head 5, when the mud sampler is lifted upwards after the collection is finished, the guide vane structures 51 stop rotating after being influenced by the gravity of the sediment sample in the sampling pipe 8 from an included angle of about 0 degree with the inner wall of the sampling head to an included angle of about 90 degrees with the inner wall of the sampling head, so that a plurality of guide vane structures 51 are connected with each other to form a closed surface with a bearing function, one end of the sampling head is in a closed state, so that the collected sediment sample is completely sealed in the sampling tube 8, and the sediment sample is prevented from being separated from the mud sampler when the mud sampler is in a vertical state.

Fig. 3 shows a schematic structural view of an embodiment of a guide vane structure, fig. 4 shows a schematic structural view of a first vane and a second vane, and as shown in fig. 3 and fig. 4, a guide vane structure 51 includes a first vane 511 and a second vane 512, the first vane 511 and the second vane 512 are in mutual fit contact, one end of the first vane 511 is provided with a first clamping portion 513, can be rotatably clamped with the inner wall of the sampling head, one end of the second blade 512 is provided with a second clamping part 514, the guide vane structure 51 is rotatably connected with the second end of the sampling head through a first clamping part 513 and a second clamping part 514 respectively, when the end of the sampling head provided with the guide vane structure 51 is below, and the second end of the sampling head is below, the main body of the first vane and the main body of the second vane are mutually matched to form a closed surface with a load-bearing function.

Specifically, the main body of the first blade comprises a trapezoid structure and a triangular structure, the main body of the second blade is of the triangular structure, and the triangular structure of the main body of the first blade and the triangular structure of the main body of the second blade are both isosceles triangle structures.

The first clamping portion 513 is a through hole communicated with the side edge of the first blade 511, and the second clamping portion 514 is a through hole communicated with the side edge of the second blade 512, wherein the first clamping portion 513 and the second clamping portion 514 have the same size, so that the production process is reduced in the manufacturing process, and the installation is convenient.

The length h1 of the first blade 511 is greater than the length h2 of the second blade 512, wherein h 1: h2 ═ 1: 0.6-0.8, when the mud sampler lifts up after finishing collecting, the second blades 512 rotate to form an included angle of about 90 degrees with the inner wall of the sampling head before the first blades 511 to prevent the sediment sample from leaking out of the sampling tube 8, and then the first blades 5 rotate along with the second blades 512 to be mutually connected to form a closed surface with a bearing function, so that the sediment sample is completely sealed in the sampling tube 8.

In the above embodiment, the ratio of the radius r of the sampling head to the length h1 of the first blade 511 is 1: 0.8 to 1.1, wherein the diameter of the sampling head can be set to 10 cm.

Specifically, in the above embodiment, in order to increase the overall weight of the mud sampler, the magnetic material layer 311 includes a first magnetic material layer 3111 and a second magnetic material layer 3112, and the cross section of the first magnetic material layer 3111 is larger than that of the second magnetic material layer 3112, the cross section of the groove 61 is larger than that of the second magnetic material layer 3112, the depth of the groove 51 is larger than the height of the second magnetic material layer 3112, and the second magnetic material layer 3112 is located in the groove 61 in a state where the gravity weight 6 is not under tension.

First magnetic material layer 3111 and second magnetic material layer 3112 may be both cylindrical in structure, and second magnetic material layer 311 may also be inverted conical in structure, it being understood that the recess in the bottom of the weight may also be conical in structure to accommodate second magnetic material layer 3112.

As shown in fig. 1, in the above embodiment, the cover 1 is provided with a first tension device 11 and a second tension device 12 on both sides thereof, and the first tension device 11 and the second tension device 12 may be circular pull rings, when the mud sampler is used for sampling in a deeper water area, the mud sampler needs to be sunk to the bottom first, the mud sampler is sufficiently sunk to the bottom by using the weight of the mud sampler itself or the weight of the mud sampler and a counterweight block arranged on the mud sampler, and in order to make the mud sampler move downwards in a direction perpendicular to the bottom mud during sinking, a wire or other firm pull rope may be tied on the first tension device 11 and the second tension device 12, respectively, under the force acting on the first tension device 11 and the second tension device 12 together, so as to make the mud sampler fall vertically.

In the above embodiment, the pull rod 7 is provided with the pulling device 71, the pulling device 71 may be a circular hole, and is disposed at a position close to the top end of the pull rod 7, and may be tied to the pulling device 71 in advance with an iron wire or other firm pulling rope, after the mud sampler is sunk into the sea water, the pull rod 7 is pulled by the pulling rope, the pull rod 7 drives the gravity hammer 6 to move upwards, after the gravity hammer 6 rises to the top end of the upper sleeve 2, the pulling rope is released, the gravity hammer 6 freely falls and hits the connecting cover 3, and the above process is repeated for a plurality of times, when the reciprocating motion of the gravity hammer 6 hits the upper surface of the first magnetic material layer 3111 of the connecting cover 3, the groove 61 at the bottom of the gravity hammer 6 covers the outer side of the second magnetic material layer 3112, the weight of the gravity hammer 6 plus the attractive force between the gravity hammer 6 and the first magnetic material layer 3111 and the second magnetic material layer 2, so that the mud sampler is wholly hit, the force for overcoming the seawater resistance is improved, so that the mud sampler can realize the operation in the deep sea area, and when the mud sampler enters the bottom mud, the force on the connecting cover is continuously beaten by the gravity hammer 6 to ensure that the mud sampler continuously moves downwards towards the deep part of the mud layer, so that the mud sampler can gradually descend to the depth of the mud layer to be sampled.

In the above embodiment, the scale 41 is provided on the outer side surface of the lower sleeve 4 along the vertical direction, and the plurality of observation holes 42 are further provided on the outer side surface of the lower sleeve 4 along the vertical direction; the scale 41 is adjacent to the observation hole 42, the sampling tube can be made of transparent material, and the height of the collected sediment sample in the sampling tube 8 installed in the lower sleeve 4 can be known through the observation hole 42 and the scale 41.

Fig. 5 shows a schematic view of the construction of the mudjack 9 in the sampling tube 8.

As shown in fig. 5, in order to take out the collected sediment sample from the sampling tube 8, a mud pushing rod 9 is needed, a circular pressing plate 91 is arranged at the lower end of the mud pushing rod 9, the circumference of the circular pressing plate 91 is equal to the inner circumference of the sampling tube 8, and the sediment sample is conveniently and completely pushed out of the sampling tube 8; the vertical a plurality of measuring holes 92 that set up of mud pushing rod 9 lateral surface, for the layering condition of conveniently taking notes the sediment sample, can set up the distance between the measuring hole to equidistant, for example the distance between the adjacent measuring hole 92 is 1cm, and at the in-process of pushing out the sediment sample sampling tube 8 with the sediment sample, the operator can be through reading the height of each layer of the sediment sample that the number record of measuring hole 92 was released.

The above-described embodiments can be implemented individually or in various combinations, and such variations are within the scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A mud sampler is characterized by comprising a sealing cover (1), an upper sleeve (2), a connecting cover (3), a lower sleeve (4), a sampling head (5), a gravity hammer (6), a pull rod (7) and a sampling pipe (8),

the sealing cover (1) is sequentially arranged with the upper sleeve (2), the connecting cover (3), the lower sleeve (4) and the sampling head (5) and is detachably and fixedly connected with the upper sleeve, the gravity hammer (6) is arranged in the upper sleeve (2) and can reciprocate, the pull rod (7) can slidably penetrate through a hole of the sealing cover (1) and is fixedly connected with the gravity hammer (6), the lower sleeve is internally provided with the sampling tube (8), and the first end of the lower sleeve (4) is detachably and fixedly connected with the sampling tube (8);

the sampling head (5) comprises a plurality of guide vane structures (51), the guide vane structures (51) are distributed along the periphery of the second end of the sampling head in a contact manner, and the first end of the sampling head is detachably and fixedly connected with the second end of the lower sleeve (4);

a solid material layer (31) is arranged in the connecting cover (3), the solid material layer (31) comprises a magnetic material layer (311) opposite to the gravity hammer (6) in polarity, and a groove (61) identical to the magnetic material layer (311) in shape is formed in the bottom of the gravity hammer (6).

2. A dredger according to claim 1, wherein any one of the guide vane structures (51) is rotatably connected to the second end of the sampling head by a predetermined angle (α), and when the second end of the sampling head is below, a closed surface is formed between a number of the guide vane structures (51), wherein the predetermined angle (α) is 0-90 degrees.

3. A dredger according to claim 2, characterized in that any one of the guide vane structures (51) comprises a first vane (511) and a second vane (512), the first vane (511) and the second vane (512) being in mutual mating contact;

one end of the first blade (511) is provided with a first clamping part (513), one end of the second blade (512) is provided with a second clamping part (514), the guide vane structure (51) is rotatably connected with the second end of the sampling head through the first clamping part (513) and the second clamping part (514) respectively,

when the second end of the sampling head is arranged below, the main body of the first blade and the main body of the second blade are mutually matched to form a closed surface.

4. A dredger according to claim 1, characterized in that the layer of magnetic material (311) comprises a first layer of magnetic material (3111) and a second layer of magnetic material (3112), the first layer of magnetic material (3111) having a larger cross-section than the second layer of magnetic material (3112).

5. A dredger according to claim 4, characterized in that the cross-section of the recess (61) is larger than the cross-section of the second layer of magnetic material (3112), and that the depth of the recess (61) is larger than the height of the second layer of magnetic material (3112).

6. A dredger according to claim 4, characterized in that the first magnetic material layer (3111) is of cylindrical structure and the second magnetic material layer (3112) is of cylindrical structure.

7. A mud sampler as claimed in claim 1, wherein a tension device (71) is arranged on the pull rod (7), and the tension device (71) acts on the pull rod (7) to drive the gravity hammer (6) to reciprocate.

8. A mud sampler as claimed in claim 1, characterised in that a first (11) and a second (12) tension device are provided on either side of the closure (1).

9. The mud sampler as claimed in claim 1, wherein the outer side of the lower sleeve (4) is provided with a scale (41) in the vertical direction, the outer side of the lower sleeve (4) is provided with a plurality of observation holes (42) in the vertical direction, and the scale (41) and the plurality of observation holes (42) are not coincident in position.

10. The mud sampler as claimed in claim 1, further comprising a mud pushing rod (9), wherein a pressing plate (91) is arranged at the lower end of the mud pushing rod (9), the circumference of the pressing plate (91) is equal to the inner circumference of the sampling tube (8), and a plurality of measuring holes (92) are vertically arranged on the outer side surface of the mud pushing rod (9).