阅读说明：本技术 捕获器及物体捕获方法 (Capture device and object capturing method ) 是由 黄龙 曾鹏 胡波 张鹏 尹来容 于 2021-01-08 设计创作，主要内容包括：本发明涉及海洋生物探测技术领域,尤其是涉及一种捕获器及物体捕获方法。该捕获器包括展卷部,所述展卷部包括多个展卷单元,多个所述展卷单元顺次活动连接,所述展卷部具有使所述展卷单元能够折叠的展开状态,以及具有使所述展卷单元能够展开的卷起状态,且处于所述卷起状态的所述展卷部形成一筒状空腔,所述展卷单元能够沿所述筒状空腔的轴向展开；以及盖板部,所述盖板部与所述展卷部相连接,且所述盖板部能够随所述展卷部动作,并在所述展卷部呈所述卷起状态时,所述盖板部能够对所述筒状空腔相对的两端的端口进行封盖。本发明能够提供较大的空间,且不易损伤生物。(The invention relates to the technical field of marine organism detection, in particular to a capturer and an object capturing method. The catcher comprises an unrolling part, wherein the unrolling part comprises a plurality of unrolling units, the unrolling units are sequentially and movably connected, the unrolling part has an unrolling state enabling the unrolling units to be folded and a rolling state enabling the unrolling units to be unrolled, a cylindrical cavity is formed by the unrolleing part in the rolling state, and the unrolling units can be unrolled along the axial direction of the cylindrical cavity; and the cover plate part is connected with the uncoiling part, the cover plate part can act on the uncoiling part, the uncoiling part is in the coiling state, and the cover plate part can seal the ports at the two opposite ends of the cylindrical cavity. The invention can provide a larger space and is not easy to damage organisms.)

1. A trap, comprising:

the uncoiling part comprises a plurality of uncoiling units which are sequentially and movably connected, the uncoiling part has an uncoiling state enabling the uncoiling units to be folded and a rolling state enabling the uncoiling units to be uncoiled, and the uncoiling part in the rolling state forms a cylindrical cavity which can be uncoiled along the axial direction of the cylindrical cavity; and the cover plate part is connected with the uncoiling part, the cover plate part can act on the uncoiling part, the uncoiling part is in the coiling state, and the cover plate part can seal the ports at the two opposite ends of the cylindrical cavity.

2. The trap of claim 1, wherein the unrolling unit comprises:

the middle plate is quadrangular;

the side plates are trapezoidal, the upper bottom edges of the side plates are hinged with the middle plate, and the two opposite sides of the middle plate are provided with the side plates; and

the end plate is quadrangular and is hinged with the lower bottom edge of the side plate;

in two adjacent said roll-up units, said middle plate of one of said roll-up units is hinged to said middle plate of another of said roll-up units, the waist edge of said side plate of one of said roll-up units is hinged to the waist edge of said side plate of another of said roll-up units, and said end plate of one of said roll-up units is hinged to said end plate of another of said roll-up units.

3. The trap of claim 2, wherein the number of the unrolled cells is an odd number or an even number; the middle plate is rectangular, the side plates are isosceles trapezoids, and the end plates are rectangular.

4. A trap according to claim 3, wherein the number of unrolled units is 3, 5, 7, 9 or 11; the sizes of the middle plates in the unfolding units are all equal, the sizes of the side plates in the unfolding units are all equal, and the sizes of the end plates in the unfolding units are all equal.

5. The trap of claim 2, wherein the cover portion comprises:

a first cover plate in the shape of a polygon having odd number of sides; and

the second cover plate is polygonal; wherein the content of the first and second substances,

the first cover plate and the second cover plate are respectively and fixedly connected with the end position plates of different unwinding units, and the shape of the outer contour formed by splicing the first cover plate and the second cover plate is the same as the shape of the contour of the port of the cylindrical cavity.

6. The trap of claim 5, wherein the corners of the first cover plate have rounded corners and the corners of the second cover plate have rounded corners; the limit of first apron reaches the limit of second apron all has the strake structure of protecting, the material of strake structure is rubber or silica gel.

7. The trap of any one of claims 2-6, further comprising:

and the driving part is used for enabling the unwinding part to perform unwinding action or winding action.

8. The trap of claim 7, wherein the drive section comprises:

one end of the connecting rod mechanism is hinged with the plate surface of the middle plate of the first set unwinding unit, and the connecting rod mechanism can unfold or fold the unwinding unit where the middle plate hinged with the connecting rod mechanism is located; and

and the power mechanism is connected with the other end of the connecting rod mechanism so as to drive the connecting rod mechanism to act.

9. The trap of claim 8, wherein the drive section further comprises: the support arm is used for bearing the power mechanism and is fixedly connected with the middle plate of the second set unwinding unit;

the link mechanism includes:

one end of the first connecting rod is hinged with the plate surface of the middle plate of the first set unwinding unit; one end of the first rocker is hinged with the other end of the first connecting rod;

the power mechanism comprises:

the worm wheel is fixedly connected with the other end of the first rocker;

the worm is meshed with the worm wheel;

an output shaft of the speed reducer is in transmission connection with the worm; and

and an output shaft of the motor is in transmission connection with an input shaft of the speed reducer.

10. An object capturing method, characterized in that the object capturing method employs the capturing device according to any one of claims 1 to 9;

the object capturing method includes:

applying force to the set unwinding units, wherein in the folding process of the set unwinding units, each adjacent unwinding unit is folded along with the set unwinding units, so that the unwinding parts are in an unwinding state;

waiting to catch the object and being located when the capture within range of catcher, to the setting the exhibition roll unit application of force, adjacent each the exhibition roll unit is expanded thereupon, just the exhibition roll unit drives simultaneously apron portion motion makes waiting to catch the object and being located after the exhibition roll portion is rolled up and form the tube-shape cavity, wherein when the tube-shape cavity forms, apron portion is simultaneously to forming the port at the relative both ends of tube-shape cavity carries out the closing cap.

Technical Field

The invention relates to the technical field of marine organism detection, in particular to a capturer and an object capturing method.

Background

The subsea world is the natural environment with the widest resources and the least recovery on earth, and at least 100 million species remain unexplored. Also, many of the undiscovered marine organisms are gelatinous and fragile, and thus conventional capture techniques, such as deep sea trawling, often destroy these organisms. Currently, sampling tools available on underwater sampling machines of marine biologists are mainly developed for the marine oil and gas industry, and soft organisms can be injured or even crushed by the aid of the grippers which directly contact with clamping objects.

The existing bionic capture device takes raccoon coypu as a bionic model, utilizes the negative pressure adsorption principle and combines the strategy of closing an inlet of a capture bag to capture marine mollusks, has the advantages of rapid implementation process and high capture success rate, but has a complex structure and a small opening, the height and the size of a closed space after the capture bag is closed are limited, and the capture device is easy to damage organisms with larger volumes. Still another underwater capture sampling device has a cylinder with two covers that can be opened and closed in tandem, requiring precise control of the entire underwater platform to be positioned. The suction type trap, which includes a water inlet pipe, a suction pump and a storage tank, has a high trapping success rate, but may be damaged when soft organisms are sucked into the water inlet pipe.

Disclosure of Invention

The invention aims to provide a capturing device and an object capturing method, which aim to solve the technical problems that the space of a capturing device is easily limited and organisms are easily damaged in the prior art.

The present invention provides a trap, comprising:

the uncoiling part comprises a plurality of uncoiling units which are sequentially and movably connected, the uncoiling part has an uncoiling state enabling the uncoiling units to be folded and a rolling state enabling the uncoiling units to be uncoiled, and the uncoiling part in the rolling state forms a cylindrical cavity which can be uncoiled along the axial direction of the cylindrical cavity; and

the apron portion, the apron portion with exhibition book portion is connected, just the apron portion can follow exhibition book portion action, and exhibition book portion is during the state of rolling up, the apron portion can be right the port at the relative both ends of tube-shape cavity carries out the closing cap.

Further, the unrolling unit comprises:

the middle plate is quadrangular;

the side plates are trapezoidal, the upper bottom edges of the side plates are hinged with the middle plate, and the two opposite sides of the middle plate are provided with the side plates; and

the end plate is quadrangular and is hinged with the lower bottom edge of the side plate;

in two adjacent said roll-up units, said middle plate of one of said roll-up units is hinged to said middle plate of another of said roll-up units, the waist edge of said side plate of one of said roll-up units is hinged to the waist edge of said side plate of another of said roll-up units, and said end plate of one of said roll-up units is hinged to said end plate of another of said roll-up units.

Further, the number of the unrolling units is odd number or even number; the middle plate is rectangular, the side plates are isosceles trapezoids, and the end plates are rectangular.

Further, the number of the unrolling units is 3, 5, 7, 9 or 11; the sizes of the middle plates in the unfolding units are all equal, the sizes of the side plates in the unfolding units are all equal, and the sizes of the end plates in the unfolding units are all equal.

Further, the cover plate portion includes:

a first cover plate in the shape of a polygon having odd number of sides; and

the second cover plate is polygonal; wherein the content of the first and second substances,

the first cover plate and the second cover plate are respectively and fixedly connected with the end position plates of different unwinding units, and the shape of the outer contour formed by splicing the first cover plate and the second cover plate is the same as the shape of the contour of the port of the cylindrical cavity.

Further, the corners of the first cover plate have rounded corners, and the corners of the second cover plate have rounded corners; the limit of first apron reaches the limit of second apron all has the strake structure of protecting, the material of strake structure is rubber or silica gel.

Further, the catcher further comprises:

and the driving part is used for enabling the unwinding part to perform unwinding action or winding action.

Further, the driving part includes:

one end of the connecting rod mechanism is hinged with the plate surface of the middle plate of the first set unwinding unit, and the connecting rod mechanism can unfold or fold the unwinding unit where the middle plate hinged with the connecting rod mechanism is located; and

and the power mechanism is connected with the other end of the connecting rod mechanism so as to drive the connecting rod mechanism to act.

Further, the driving part further includes: the support arm is used for bearing the power mechanism and is fixedly connected with the middle plate of the second set unwinding unit;

the link mechanism includes:

one end of the first connecting rod is hinged with the plate surface of the middle plate of the first set unwinding unit; and

one end of the first rocker is hinged with the other end of the first connecting rod;

the power mechanism comprises:

the worm wheel is fixedly connected with the other end of the first rocker;

the worm is meshed with the worm wheel;

an output shaft of the speed reducer is in transmission connection with the worm; and

and an output shaft of the motor is in transmission connection with an input shaft of the speed reducer.

The invention also provides an object capturing method, which adopts the capturing device;

the object capturing method includes:

applying force to the set unwinding units, wherein in the folding process of the set unwinding units, each adjacent unwinding unit is folded along with the set unwinding units, so that the unwinding parts are in an unwinding state;

when the object to be captured is positioned in the capturing range of the capturing device, the force is applied to the set unrolling units, the adjacent unrolling units are unrolled, the unrolling units simultaneously drive the cover plate part to move, so that the object to be captured is positioned in the unrolled part to form a cylindrical cavity, wherein the object to be captured is positioned in the cylindrical cavity

When the cylindrical cavity is formed, the cover plate part simultaneously covers the ports at two opposite ends of the formed cylindrical cavity.

The invention has the following beneficial effects:

in the catcher and the object catching method provided by the invention, the unrolling part is mainly formed by sequentially and movably connecting a plurality of unrolling units, so that the unrolling part can be unrolled to enlarge the catching range, and the unrolling part can be rolled up to form a cylindrical cavity; when the cover plate part is rolled into the cylindrical cavity at the uncoiling part, the port of the cylindrical cavity is immediately sealed, so that the capturing success rate is greatly improved; when the unrolling part is unfolded, the unrolling unit is folded, so that the axial size of the catcher can be reduced, and the resistance in underwater navigation can be effectively reduced.

It is to be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily restrictive of the disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of the disclosure. Together, the description and drawings serve to explain the principles of the disclosure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a roll unwinding unit provided in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a roll-out portion according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a pentagonal panel provided by the embodiment of the invention;

FIG. 4 is a schematic structural diagram of a quadrilateral plate provided by an embodiment of the invention;

FIG. 5 is a diagram of the operational state of the trap in an embodiment of the present invention;

FIG. 6 is a partial cross-sectional view of a trap in an embodiment of the invention;

FIG. 7 is a schematic view of an embodiment of the invention with the trap fully open (fully unwound roll);

FIG. 8 is a schematic illustration of the trap during closing in an embodiment of the present invention;

FIG. 9 is a further schematic illustration of the trap closing process in an embodiment of the present invention;

FIG. 10 is yet another schematic illustration of the trap closing process in an embodiment of the present invention;

FIG. 11 is a schematic view of the trap provided by an embodiment of the present invention fully closed (fully rolled up roll);

FIG. 12 is a schematic view of another perspective of the trap of FIG. 11;

FIG. 13 is a schematic illustration of a further perspective of the trap of FIG. 11;

FIG. 14 is a schematic view of another perspective of the trap of FIG. 7;

FIG. 15 is a schematic diagram of two adjacent unrolling and folding units according to an embodiment of the present invention;

fig. 16 is a schematic diagram of the unfolding or folding process of two adjacent unfolding units according to the embodiment of the invention.

Icon:

101-a median plate; 102-side panel; 103-terminal plate; 104-a first unit; 105-a second unit; 106-third unit; 107-fourth cell; 108-fifth unit; 109-sixth unit; 110-a seventh unit; 111-a first cover plate; 112-a second cover plate; 113-a first joint edge; 114-a second joint edge; 115-a third joint edge; 116-a fourth joint edge; 117-edge guard structure; 118-a support arm; 119-a first link; 120-a first rocker; 121-a worm gear; 122-a worm; 123-speed reducer; 124-motor.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 12, an embodiment of the present invention provides a trap, including: a roll-out portion and a cover plate portion. The capturer can be used for capturing underwater soft organisms, capturing underwater other organisms or objects, and being suitable for capturing objects on the ground or in the air.

The unwinding part of the thick plate paper folding-based underwater catcher comprises a plurality of unwinding units, wherein the plurality of unwinding units are sequentially and movably connected from one end to the other end along the extension direction of a set curve; the unrolling part has an unrolling state and a rolling state; when the unrolling part is in a rolled state, the plurality of unrolling units can enclose a cylindrical cavity; the cross section of the cylindrical cavity can be a polygon, and the polygon formed by the cross section of the cylindrical cavity can be a regular polygon, so that batch production of a plurality of uncoiling and coiling units is facilitated, production cost is reduced, and assembly is easy. When the uncoiling part is uncoiled, the uncoiling unit can be folded, so that the space occupied by the uncoiling part when the uncoiling part is uncoiled is favorably reduced; and when the unrolling part is rolled up, the unrolling unit can be unrolled, so that the wrapping tendency is easily formed, and the success rate of capturing is improved. When the unrolling part is completely rolled up, a cylindrical cavity is formed, and the unrolling unit is also completely unrolled along the axial direction of the cylindrical cavity. When the roll part is unfolded, a plurality of roll units are connected to form a shape which is basically curved, for example: arc-shaped; the curvature radius of the curve is large; the radial dimension of the uncoiling part when uncoiling is larger than that of the uncoiling part when coiling, and the axial dimension of the uncoiling part when uncoiling is smaller than that of the uncoiling part when coiling. The radial size of the cylindrical cavity is increased only by increasing the number of the uncoiling units, and the uncoiling units are conveniently and repeatedly increased under the condition that each uncoiling unit is the same, so that the radial size of the cylindrical cavity is increased; increasing the axial dimension of the cylindrical cavity only requires increasing the dimension of the unrolling unit when unrolling.

The polygon formed by the cross section of the cylindrical cavity is not only a regular polygon, but also can be designed into other polygons with unequal sides according to actual needs.

In the embodiment of the invention, the cover plate part is connected with the unrolling part and can act along with the unrolling part, and when the unrolling part is in a rolled state, the cover plate part can seal the ports at two opposite ends of the cylindrical cavity, so that the ports at two ends of the cylindrical cavity can be sealed in time, captured objects can be prevented from escaping, and the capturing success rate is greatly improved.

In the catcher provided by the embodiment of the invention, the unrolling part is mainly formed by sequentially and movably connecting a plurality of unrolling units, so that the unrolling part can be unrolled to enlarge the catching range, and the unrolling part can be rolled up to form a cylindrical cavity; when the cover plate part is rolled into the cylindrical cavity at the uncoiling part, the port of the cylindrical cavity is immediately sealed, so that the capturing success rate is greatly improved; when the unrolling part is unfolded, the unrolling unit is folded, so that the axial size of the catcher can be reduced, and the resistance in underwater navigation can be effectively reduced.

Referring to fig. 1, in an alternative of this embodiment, the unwinding unit includes a middle plate 101, a side plate 102 and two end plates 103; the number of side plates 102 may be two; the two side plates 102 are respectively positioned at two opposite sides of the middle plate 101, and the end plates 103 are hinged with the middle plate 101. The neutral plate 101 is quadrilateral; side board 102 is trapezoidal, and the last base of side board 102 is articulated mutually with well bit board 101, and end bit board 103 is the quadrangle, and end bit board 103 is articulated mutually with the lower base of side board 102. Adopt the side board to be trapezoidal, realize the transmission of force like this to be convenient for realize the linkage between the adjacent exhibition book unit, thereby realize the expansion or the roll-up of whole exhibition book portion.

In the optional scheme of this embodiment, the middle position plate 101 is rectangular, the side position plates 102 are isosceles trapezoids, and the end position plates 103 are rectangular; the middle plates 101 in the respective unrolling units are all equal in size, the side plates 102 in the respective unrolling units are all equal in size, and the end plates 103 in the respective unrolling units are all equal in size. This facilitates manufacturing, can reduce mounting accuracy and design accuracy, and can realize increasing the axial dimension of the catcher when the unwound part is wound up by increasing the length of the short side of the neutral plate 101. The length of the long side of the middle plate 101 is equal to the length of the upper bottom side of the side plate 102; the length of the lower bottom edge of the side plate 102 is equal to the length of the long edge of the end plate 103. The length of the upper bottom edge of side panel 102 is less than the length of the lower bottom edge of side panel 102. The long side of the middle plate 101 is hinged to the upper bottom side of the side plate 102, and the lower bottom side of the side plate 102 is hinged to the long side of the end plate 103.

In an alternative scheme of this embodiment, in two adjacent unrolling units, the short side of the middle plate 101 of one unrolling unit is hinged to the short side of the middle plate 101 of the other unrolling unit, the waist side of the side plate 102 of one unrolling unit is hinged to the waist side of the side plate 102 of the other unrolling unit, and the short side of the end position plate 103 of one unrolling unit is hinged to the short side of the end position plate 103 of the other unrolling unit. This allows a plurality of unrolling units to be hinged in sequence for the formation of unrolling portions.

Specifically, in two adjacent unwinding units, the four hinge axes of the waist edges of the side plates 102 of the two unwinding units, the hinge axis of the short edges of the middle plates 101 of the two unwinding units, the hinge axis of the long edge of the middle plate 101 of one of the unwinding units and the upper bottom edge of the side plate 102 of the other unwinding unit, and the hinge axis of the long edge of the middle plate 101 of the other unwinding unit and the upper bottom edge of the side plate 102 of the other unwinding unit intersect at a point. In two adjacent unrolling units, the four hinge axes of the two unrolling units are intersected at a point, namely the hinge axis between the waist edges of the side plates 102 of the two unrolling units, the hinge axis between the short edges of the end plates 103 of the two unrolling units, the hinge axis between the long edge of the end plate 103 of one unrolling unit and the lower bottom edge of the side plate 102 of the other unrolling unit, and the hinge axis between the long edge of the end plate 103 of the other unrolling unit and the lower bottom edge of the side plate 102 of the other unrolling unit.

It should be noted that in the embodiment of the present invention, in each unrolling unit, the middle plate and the side plates may be hinged together in a manner that a pin shaft is inserted into the barrel sleeve, and the middle plate, the side plates, and the end plates are all fixed with barrel sleeves and may be connected by hinges or hinges. The two adjacent unwinding units can be hinged in a manner that a pin shaft is inserted into the barrel sleeve, wherein the barrel sleeves are fixed on the middle position plate, the side position plates and the end position plates, and the middle position plate, the side position plates and the end position plates can be connected through hinges or hinges.

In an alternative of this embodiment, the number of the unwinding units may be an odd number, which facilitates the addition of the driving part of the catcher. When the number of the unrolling unit can be 3, 5, 7, 9 or 11, any odd number of 15-100 can be used. In this embodiment, the number of the unrolling units is specifically described as 7; the plurality of unwinding units are a first unit 104, a second unit 105, a third unit 106, a fourth unit 107, a fifth unit 108, a sixth unit 109, and a seventh unit 110 in this order from one end to the other end in the longitudinal direction of the unwinding part.

It should be noted that the number of the unrolling unit may also be an even number, such as: the number of the unrolling unit may be any even number from 4 to 100.

In an alternative of this embodiment, the cover plate portion includes a first cover plate 111 and a second cover plate 112; the first cover plate 111 has a polygonal shape with odd number of sides; the second cover plate 112 is polygonal, wherein the first cover plate 111 and the second cover plate 112 are respectively and fixedly connected with the end position plates 103 of different unwinding units, and the shape of the outer contour formed by splicing the first cover plate 111 and the second cover plate 112 is the same as the shape of the contour of the port of the cylindrical cavity. The second cover plate 112 may have a polygonal shape with an even number of sides. Two end plates 103 of the fourth unit 107 are fixedly connected with a first cover plate 111 respectively; a second cover plate 112 is fixedly connected to each of the two end plates 103 of the second unit 105, and a second cover plate 112 is fixedly connected to each of the two end plates 103 of the sixth unit 109, so that the port at one end of the cylindrical cavity can be spliced by the first cover plate 111 and the two second cover plates 112 to form a cover plate portion, thereby closing the port at one end of the cylindrical cavity.

Referring to fig. 3 and 4, in particular, in this embodiment, the first cover plate 111 is a pentagonal plate with 5 sides, and the second cover plate 112 is a quadrangular plate with 4 sides; the pentagonal panel is provided with three sides with equal length, the three sides with equal length are sequentially connected, one of the three sides with equal length is adjacent to the other two sides, and the length of the three sides with equal length is equal to the length of the long side of the end position plate 103. Of the five sides of the pentagonal plate, except three sides with equal length, the remaining two sides are adjacent and have equal length; in order to distinguish the five sides in the pentagonal panel, each of the three equal-length sides in the pentagonal panel is set as a first joint side 113, and each of the remaining two adjacent equal-length sides is set as a second joint side 114. The middle of the three equal-length sides of the pentagonal panel is fixedly connected to the long side of the end plate 103 of the fourth unit 107, for example, the end plate 103 of the fourth unit 107 can be fixedly connected to the pentagonal panel by a screw or other fastener, that is, the middle of the three first joint sides 113 of the pentagonal panel is fixedly connected to the long side of the end plate 103, such as: fixedly connected with the long side of the terminal plate 103 of the fourth unit 107; the plate surface of the end position plate 103 of the first unit 104 and the plate surface of the pentagon may be perpendicular to each other. Among three sides of the pentagonal plate with equal length, the side positioned in the middle is adjacent to the other two sides respectively; two end plates 103 of the fourth unit 107 are fixedly connected with a pentagonal plate respectively.

The quadrilateral plate has two adjacent sides with equal length, and the length of each side of the two adjacent sides is equal to the length of the long side of the end position plate 103. Two end position plates 103 of the second unit 105 are respectively fixedly connected with a quadrilateral plate, two end position plates 103 of the sixth unit 109 are respectively fixedly connected with a quadrilateral plate, and the quadrilateral plates and the end position plates 103 can be fixedly connected through screws or other fasteners. When the rectangular plate is fixed, the side of the rectangular plate having the same length as the long side of the end position plate 103 is fixedly connected to the end position plate 103. The plate surface of the end position plate 103 of the second unit 105 may be perpendicular to the plate surface of the rectangular plate, and the plate surface of the end position plate 103 of the sixth unit 109 may be perpendicular to the plate surface of the rectangular plate. In order to distinguish four sides of the quadrilateral plate, each of two sides with the same length as the long side of the end position plate 103 is set as a third joint side 115, and each of the two remaining sides with the same length is set as a fourth joint side 116; thus, one of the third engagement edges 115 of the quadrilateral plate is fixedly attached to the end stop plate 103, for example, to the end stop plate 103 of the second unit 105 and to the end stop plate 103 of the sixth unit 109. The length of the fourth joining edge 116 of the quadrilateral plate may be equal to the length of the second joining edge 114 of the pentagonal plate.

In an alternative of this embodiment, the corners of the first cover plate 111 may have rounded corners, and the corners of the second cover plate 112 may have rounded corners, so that interference between the first cover plate 111 and the second cover plate 112 when closed may be reduced. The edge of the first cover plate 111 and the edge of the second cover plate 112 may have an edge protection structure 117, and the edge protection structure 117 is made of rubber or silica gel, so that damage to the captured object may be reduced. The quantity that needs to explain, the amalgamation department of first apron and second apron can leave the clearance, and the amalgamation limit of first apron and the amalgamation limit of second apron can be fixed with rubber sheet or silica gel piece, like this when first apron and second apron amalgamation back mutually, the clearance between the two is compensatied by rubber sheet or silica gel piece, can avoid pressing from both sides the injury biology like this on the one hand, and on the other hand can avoid the biology to escape from the clearance.

In an alternative of this embodiment, the first cover plate 111 and the second cover plate 112 of the cover plate portion may be polygonal after being combined, for example, regular n-sided; when the number of the unrolling unit is 7, the outline of the port of the cylindrical cavity is in a heptagon shape. The cover plate part can be formed by splicing a pentagonal plate and two quadrangular plates. When the shapes and the sizes of the 7 unrolling and rolling units are completely the same, the outline of the port of the cylindrical cavity is in a regular heptagon shape; the shape of the outer contour formed by splicing the first cover plate 111 and the second cover plate 112 may also be a regular heptagon, and the outer contour of the cover plate part is matched with the shape of the inner contour of the port of the cylindrical cavity. When the first cover plate 111 and the second cover plate 112 are fixed, the surface of the first cover plate 111 in the thickness direction can be attached to the plate surface of the end position plate 103, and the surface of the second cover plate 112 in the thickness direction can be attached to the plate surface of the end position plate 103, so that the port can be better sealed.

It should be noted that, in the embodiment of the present invention, the middle plate, the side plates, the end plates, the first cover plate, and the second cover plate may be made of plastic or metal, or made of plastic and metal; in addition, the middle plate, the side plates, the end plates, the first cover plate and the second cover plate can be made of a hole-free plate structure, a plate structure with holes, or a frame structure, wherein the frame structure comprises a net structure with a frame fixed inside the frame, the frame can be made of plastic or metal, and the net structure can be made of plastic or metal.

Referring to fig. 6, in an alternative embodiment of the present invention, the catcher further includes a driving portion for causing the unwinding or winding of the unwinding portion.

Specifically, the driving part may include: a connecting rod mechanism and a power mechanism; one end of the connecting rod mechanism is hinged with the plate surface of the middle position plate 101 of the first set unfolding and rolling unit, and the connecting rod mechanism acts to enable the unfolding and folding unit where the middle position plate 101 hinged with the connecting rod mechanism is located to unfold or fold; the power mechanism is connected with the other end of the connecting rod mechanism to drive the connecting rod mechanism to act, the unfolding or folding of the unfolding and rolling unit can be realized by adopting the connecting rod mechanism, and the transmission power is large. The driving part may be disposed outside the cylindrical cavity.

In an optional solution of this embodiment, the driving portion further includes a supporting arm 118, the supporting arm 118 is used for carrying the power mechanism, and the supporting arm 118 is fixedly connected to the middle plate 101 of the second set unwinding unit. When the number of the unrolling unit is 7, the third unit 106 and the fifth unit 108 are respectively connected with a link mechanism, and one end of the supporting arm 118 can be fixedly connected with the plate surface of the middle plate 101 of the fourth unit 107, so that the link mechanisms on two opposite sides of the supporting arm 118 can act simultaneously, and the unrolling efficiency is improved. The length of the short side of the middle plate 101 of the unrolling unit can also be adjusted according to the size of the supporting arm 118 of the driving part. It should be noted that a water suction pump can be installed inside the cylindrical cavity, and the water suction pump is installed on the middle plate, so that in the process of capturing organisms, water in the cylindrical cavity is discharged to the outside, a certain suction force is formed, and the capturing success rate is improved.

In an alternative version of this embodiment, the linkage comprises a first link 119 and a first rocker 120; one end of the first link 119 is hinged to the surface of the middle plate 101 of the first set unrolling unit; one end of the first rocking bar 120 is hinged to the other end of the first link 119. The power mechanism comprises a worm wheel 121, a worm 122, a speed reducer 123 and a motor 124; the worm wheel 121 is fixedly connected with the other end of the first rocker 120; the worm 122 is meshed with the worm wheel 121; an output shaft of the speed reducer 123 is in transmission connection with the worm 122; an output shaft of the motor 124 is in transmission connection with an input shaft of the speed reducer 123.

Specifically, the number of the link mechanisms may be two, and the two link mechanisms may be symmetrically disposed about the axis of the support arm 118; the plate surface of the middle plate 101 of the third unit 106 is hinged to one end of the first link 119 of one of the link mechanisms, and the plate surface of the middle plate 101 of the fifth unit 108 is hinged to one end of the first link 119 of the other link mechanism. The support arm 118 may be hollow, which facilitates mounting of the worm gear 121, worm 122, reducer 123, and motor 124 inside the hollow. The middle plate 101, the supporting arms 118 and each first connecting rod 119 of the third unit 106, and the first rocker 120 hinged with the first connecting rod 119 form a four-bar mechanism; the motor 124 drives the reducer to rotate, the reducer 123 drives the worm 122 to rotate, power is transmitted to the worm wheel 121, the worm wheel 121 drives the first rocker 120 to swing, the first rocker 120 drives the first connecting rod 119 to move, and therefore the unfolding or the rolling of the unfolding and rolling part is achieved, and the trap is opened or closed; in this embodiment, when the connection end of the first rocker and the first link is swung toward the other end opposite to the support arm, the unwinding of the unwinding portion is realized; when the connecting end of the first rocker and the first connecting rod swings to the end opposite to the supporting arm, the rolling-up of the roll-up part is realized.

As shown in fig. 13, when the unrolling part is completely rolled up, that is, the unrolling part is in a rolled state, and a plurality of unrolling units form a cylindrical cavity, the plate surface of the middle plate in each unrolling unit is not parallel to the plate surface of the side plate of itself, the plate surface of the side plate in each unrolling unit is not parallel to the plate surface of the end plate of itself, an included angle between the inner surface of the end plate in each unrolling unit and the inner surface of the side plate of itself is less than 180 degrees, and an included angle between the outer surface of the middle plate in each unrolling unit and the outer surface of the side plate of itself is less than 180 degrees; in the process that the unrolling part changes from a rolling state to an unrolling state, two side plates in each unrolling unit move towards the direction close to each other, the side plates in each unrolling unit turn outwards relative to a middle plate of each unrolling unit, and end plates in each unrolling unit turn inwards relative to the side plates of each unrolling unit; the middle plate in each unrolling unit is used as a plate for driving, the middle plate drives two adjacent side plates to turn outwards and fold, and meanwhile, as the side plates are isosceles trapezoids, an included angle is formed between the waist and the upper bottom edge of each side plate, and when the middle plates turn outwards and unfold, the adjacent unrolling units are conveniently driven to do folding motion; when the unrolling part is in a rolled state, the included angle between the inner surface of the end plate in each unrolling unit and the inner surface of the side plate of the unrolling unit is smaller than 180 degrees, and the included angle between the outer surface of the middle plate in each unrolling unit and the outer surface of the side plate of the unrolling unit is smaller than 180 degrees, so that when the unrolling part changes from the rolled state to the unrolled state, the overturning and folding direction of the side plate in each unrolling unit is opposite to the overturning and folding direction of the end plate, namely the side plate is folded outwards, and the end plate is folded inwards, as shown in fig. 14; in this embodiment, the inside of the cylindrical cavity is referred to as the inside, and the outside of the cylindrical cavity is referred to as the outside.

It should be noted that a plastic film or other film structure may be applied to the inner surface of the first cover 111 and the inner surface of the second cover 112 of the cover portion, and a whole plastic film or other film structure may be applied to the inner surface of the unrolling portion to improve the tightness of the trap after closing.

The principle of rolling and unrolling the unrolling part in the catcher provided by the embodiment of the invention is specifically explained by taking the movement between two adjacent unrolling units as an example:

referring to fig. 15 and 16, fig. 16 is a view from a of fig. 15; setting a set plane H to be vertical to the plate surface of the middle plate in one of the unrolling units, wherein a first set angle alpha represents an initial included angle between the plate surface of the middle plate in the other unrolling unit and the plate surface of the middle plate in one of the unrolling units; the second setting angle beta represents a rotation included angle between the plate surface of one side plate in one of the unrolling units and the setting plane H; the third setting angle alpha' represents an included angle between the plate surface of the middle plate in the other unrolling unit and the plate surface of the middle plate in one of the unrolling units after one side plate in one of the unrolling units rotates by an angle beta relative to the plane H; the fourth setting angle θ is an angle change amount of the middle plate in the other unrolling unit after one side plate in one of the unrolling units rotates by an angle β relative to the plane H, namely an included angle between an initial position and a changed position of the middle plate in the other unrolling unit, wherein α - α' = θ;

when the side board in the exhibition book unit is inwards turned over and is folded, the angle of second setting angle beta increases gradually, because the projection that is isosceles trapezoid in one of the exhibition book unit on setting for plane H is isosceles trapezoid, when the side board moves, the length of the last base and the lower base of this projection (isosceles trapezoid) does not change, but the height (the distance between lower base and the lower base) of this projection (isosceles trapezoid) does shorten gradually, make the contained angle between the waist of this projection (isosceles trapezoid) and the lower base diminish gradually like this, this side board just drives the side board motion in another exhibition book unit, the side board in another exhibition book unit forces the well base motion of self, thereby the change of first setting angle alpha has been caused, the exhibition book unit expandes promptly, roll up the portion and can realize curling. Conversely, the middle plate in one of the unrolling units is driven to rotate outwards relative to the middle plate in the other unrolling unit so as to make the unrolling unit perform folding motion, and the unrolling part is unrolled.

The embodiment of the invention also provides an object capturing method, which adopts the capturer provided by the embodiment of the invention.

The object capturing method includes:

unfolding action: applying force to the set unrolling units, wherein in the folding process of the set unrolling units, each adjacent unrolling unit is folded along with the set unrolling units, so that the unrolling part is in an unrolled state, which is shown in fig. 7;

rolling up: when the object to be captured is located within the capture range of the capture device, a force is applied to the set unrolling units, the adjacent unrolling units are unrolled, the unrolling units drive the cover plate parts to move simultaneously, the object to be captured is located in the unrolled parts and is rolled up to form a cylindrical cavity, and when the cylindrical cavity is formed, the cover plate parts simultaneously cover ports at two opposite ends of the formed cylindrical cavity, as shown in fig. 8 to 12. Specifically, when the unrolling part is unrolled, after the side plate 102 in one unrolling unit is unrolled for a certain angle relative to the middle plate 101 along the axial direction, the middle plate 101 of the adjacent unrolling unit rotates relative to the middle plate 101 of the one unrolling unit along the circumferential direction, so that the movement of the unrolling units is sequentially transmitted along the circumferential direction, and the unrolling units are gradually rolled to form a cylindrical cavity; the expansion part can be automatically curled after being unfolded, the capture object is radially wrapped, and finally the capture object is curled to form a cylindrical cavity and is stretched in the axial direction.

The capturer and the object capturing method provided by the embodiment of the invention mainly have the following characteristics:

1. the uncoiling units are sequentially connected to form an uncoiling part, the uncoiling part realizes circumferential coiling while axially extending, driving is effectively reduced, and the structure is simplified; 2. the uncoiling part is formed by mutually hinging plate-shaped structures, a closed space is formed after the uncoiling part is closed, the sampling object is not directly contacted, and the damage to a fragile biological sample can be effectively reduced; 3. each unrolling unit only consists of a rectangular middle position plate 101, a rectangular side end position plate 103 and an isosceles trapezoid side position plate 102, and each unrolling unit is simple in structure, convenient to manufacture and install and low in cost; 4. the catcher has only one degree of freedom, the mechanism moves stably, and the driving is simple; 5. the unrolling part mainly comprises a plurality of unrolling units with the same size, and can automatically align the joint edge when being closed without an additional aligning mechanism, so that the structure is further simplified; 6. the axial size of the expansion part of the catcher is very small when the expansion part is completely expanded, so that the navigation resistance in the sampling process can be effectively reduced; 7. the plate structure of the roll-out portion is both a sampling wrap element and a power transmission element, and this embodiment provides a trap that can form a larger enclosed space than other traps of the same volume.

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 the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.