CN210340896U

CN210340896U - Collection system suitable for periphytic algae

Info

Publication number: CN210340896U
Application number: CN201920974875.XU
Authority: CN
Inventors: 胡莲; 沈振锋; 杨志; 张志永; 彭建华; 郑志伟; 马沛明
Original assignee: Institute Of Water Engineering Ecology Chinese Academy Of Sciences; Huazhong Agricultural University
Current assignee: Institute Of Water Engineering Ecology Chinese Academy Of Sciences; Huazhong Agricultural University
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-04-17
Anticipated expiration: 2029-06-26

Abstract

The utility model relates to a collection system suitable for periphytic algae, including collection mechanism, string bag, the sample collector that sets gradually from the top down, collection mechanism is equipped with upper shed and under shed, the string bag is the setting of falling bell-shaped, and it is equipped with upper shed and under shed, collection mechanism's upper shed is equipped with and is the protruding collection end of arc, collection mechanism's under shed with the upper shed detachably sealing connection of string bag, the under shed of string bag with the upper portion sealing connection of sample collector; the collecting mechanism is also provided with a rotating mechanism and a telescopic rod, and the telescopic rod is hinged with the collecting mechanism through the rotating mechanism. This collection system simple structure, convenient operation, it is simple and convenient to wash the sample, can dismantle folding, portable can satisfy the field and carry out the demand of sampling to the algae of living, is a section and is fit for being used for open-air aquatic creature monitoring's sampling instrument.

Description

Collection system suitable for periphytic algae

Technical Field

The utility model relates to an ecological environment monitoring technology field, concretely relates to collection system suitable for periphytic algae.

Background

The attached algae, which is a main primary producer of a water area ecosystem and is an important part of a food chain, can transfer inorganic nutrient elements to higher organic life bodies, is used for important tasks of material circulation and energy flow, is mainly attached to substrates such as stones, aquatic plants, sediments, sand grains, aquatic animals and the like, has strong sensitivity to external interference, can reflect the water quality condition of a water area to a certain extent, and is one of important indexes for evaluating whether the ecological environment of the water area is good or not.

At present, the collection of the attached algae is mainly to brush the algae living on the substrate such as stone, wood or plant into a sample bottle by using a tool such as a toothbrush, and then to add formaldehyde solution for fixation. The method is simple and direct, but has some disadvantages, because in the actual field monitoring process, the matrixes are not easy to find, and the steep embankment, wharfboat, ship or navigation mark staying in the water have abundant attached algae growing, which is bound to be the target for collecting the attached algae, but the workers in the places can not collect the attached algae by the method, even take the force of nine bulls and two tigers to take the attached algae on the ground, so that the collected samples are limited, the safety is very poor, and the workers have the danger of planting the attached algae in the water by carelessness. Therefore, it is very important to develop a portable collecting device suitable for the periphyton algae under the environmental conditions.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem who exists among the prior art, provide a collection system who is suitable for attached algae, aim at solving the technical problem that above-mentioned attached algae sample exists, the device simple structure, convenient operation can dismantle the dismantlement and fold, and portable is a section and is fit for being used for open-air aquatic organism monitoring's sampling tool.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a collecting device suitable for periphytic algae comprises a collecting mechanism, a net bag and a sample collector, wherein the collecting mechanism, the net bag and the sample collector are sequentially arranged from top to bottom, the collecting mechanism is provided with an upper opening and a lower opening, the net bag is arranged in an inverted bell shape and provided with the upper opening and the lower opening, the upper opening of the collecting mechanism is provided with a collecting end protruding in an arc shape, the lower opening of the collecting mechanism is detachably and hermetically connected with the upper opening of the net bag, and the lower opening of the net bag is hermetically connected with the upper part of the sample collector; the collecting mechanism is also provided with a rotating mechanism and a telescopic rod, and the telescopic rod is hinged with the collecting mechanism through the rotating mechanism.

When field periphytic algae needs to be collected, the collection device is assembled, an operator holds the telescopic rod by hand, the collection end of the upper opening of the collection mechanism is aligned to the sampling substrate to scrape the periphytic algae, and the rotating mechanism can rotate to adjust the angle according to the needs of the operator in the process of scraping the algae sample; the algae of collection falls in the string bag of gathering mechanism below, can hold the telescopic link and carry out the algae sample in with water drag washing with the string bag, and the algae sample after the washing completion drops and advances kind article collector, then dismantles being connected between string bag and the sample collector, can take out the algae sample of collection. When the acquisition device is not needed, the acquisition device can be disassembled for storage; the components such as the net bag and the like are easy-to-consume components, and when the components are damaged, the components can be conveniently detached and replaced. This collection system simple structure, convenient operation, it is simple and convenient to wash the sample, can dismantle the dismantlement folding, portable can satisfy the field demand of sampling to the algae of living, is a section and is fit for being used for open-air aquatic organism monitoring's sampling tool.

Preferably, the acquisition mechanism comprises a front plate, a left side plate, a rear plate and a right side plate, and any adjacent two of the front plate, the left side plate, the rear plate and the right side plate are fixedly connected through a clamping groove to form a channel; the upper end of front bezel is equipped with and is the convex collection end of arc, the lateral surface of back plate is equipped with rotary mechanism, rotary mechanism with telescopic link fixed connection. When the device is not needed, all components of the collecting mechanism can be detached, so that the device saves space and is convenient to carry.

Preferably, the outer wall of the upper end of the collecting mechanism is provided with a groove surrounding the collecting mechanism, the groove is arranged in the same plane, and a positioning ring is arranged in the groove. Because connect through the draw-in groove between the front bezel of collection mechanism, left side board, back plate, the right side board, when the handheld telescopic link of operating personnel gathered the sample, when the component that is used for on the back plate power along the draw-in groove direction is greater than the frictional force between back plate and left side board or the back plate, the back plate probably slided along the draw-in groove to make collection mechanism scatter. The locating ring in the groove locates the front plate, the left side plate, the rear plate and the right side plate of the collecting mechanism, which is equivalent to applying double insurance for the firmness of the collecting mechanism and avoiding the displacement of each component of the collecting mechanism.

Preferably, the lower part of the collecting mechanism is provided with a flat sealing groove, the flat sealing groove surrounds the outer wall of the collecting mechanism, the flat sealing groove is of a C-shaped structure with an outward opening, a sealing strip is arranged in the flat sealing groove, and the sealing strip presses the upper opening of the net bag and the flat sealing groove. The shape of the seal strip is complementary with the shape of the opening of the flat seal groove, and the seal strip and the opening are matched with each other, so that an effective attaching effect can be achieved. The edge part of the upper opening of the net bag is embedded between the seal strip and the flat seal groove, and the seal strip and the flat seal groove are mutually attached to reliably compress and fix the edge part of the upper opening of the net bag. When the device is not needed, the seal strip can be drawn out, so that the net bag is detached from the collecting mechanism, and the storage and carrying are convenient.

Preferably, a flexible sleeve is arranged at an upper opening of the net bag and is matched with the flat sealing groove, a sealing strip inserting hole is formed in the flexible sleeve, and the sealing strip penetrates through the sealing strip inserting hole of the flexible sleeve and is matched with the flat sealing groove. The upper shed of string bag sets to the style of flexible sleeve pipe, and the strip of paper used for sealing passes the strip of paper used for sealing jack, and the flexible sleeve pipe cup joints on the strip of paper used for sealing, and the strip of paper used for sealing embedding on gathering the mechanism is compressed tightly the flexible sleeve pipe on gathering the mechanism to reach the reliable connection between string bag and the gathering mechanism. The design of flexible sleeve pipe makes even the strip of paper used for sealing and a certain section cooperation in the flat groove is not hard up, also be unlikely to make the string bag pine take off from gathering the mechanism, makes the connection between string bag and the gathering mechanism more reliable.

Preferably, the rotating mechanism comprises a pair of fixing seats and a T-shaped rotating shaft, the fixing seats are arranged on the T-shaped rotating shaft coaxially at the end parts of two ends of the T-shaped rotating shaft respectively, the fixing seats are in interference fit with the T-shaped rotating shaft, and the end part of the third end of the T-shaped rotating shaft is fixedly connected with the telescopic rod. In the process of collecting samples, the rotating mechanism can provide an angle adjusting function, the telescopic rod makes circular motion around the axes of two ends coaxially arranged on the T-shaped rotating shaft, the maximum angle adjustment can reach 180 degrees, and an operator can collect samples at different positions more conveniently.

Preferably, the telescopic link is including the connector, at least one single section pole, the handle that connect gradually, connector one end with rotary mechanism fixed connection, the connector other end with single section pole fixed connection. When gathering the alga sample in the field, the distance between collection point and the operating personnel often differs in length, and the length of telescopic link is adjusted to the accessible this moment increase or reduce the quantity of single festival pole, successfully realizes the sample collection.

Preferably, the sample collector is in a tapered shape from top to bottom, the upper part of the sample collector is tightly pressed with the lower opening of the net bag through an annular hoop, the lower part of the sample collector is provided with an opening, and the opening is provided with a rotary plunger. When the sample in the sample collector needs to be taken out after the sample is collected, the rotating plunger on the sample collector is unscrewed, and the sample in the sample collector is placed into the sample bottle, so that the sample sampling is completed. The process is convenient and clean to operate, and the sample collector enables the cleaned algae samples to be more concentrated, so that the samples can be conveniently concentrated and taken out. When need not carry out sample collection, can open annular clamp, dismantle sample collector get off, be convenient for accomodate and carry.

The utility model has the advantages that: when field periphytic algae needs to be collected, the collection device is assembled, an operator holds the telescopic rod by hand, the collection end of the upper opening of the collection mechanism is aligned to the sampling substrate to scrape the periphytic algae, and the rotating mechanism can rotate according to the needs of the operator to adjust the angle in the process of scraping the algae sample; the algae of collection drops in the string bag of gathering mechanism below, can hold the telescopic link and carry out the algae sample in with water drag washing with the string bag, and the algae sample after the washing is accomplished drops and concentrates on in the sample collector, then opens the rotatory plunger piston of sample collector lower part, can take out the algae sample of collection. When the collecting device is not needed, the collecting device can be disassembled and stored; the components such as the net bag and the like are easy-to-consume components, and when the components are damaged, the components can be conveniently detached and replaced. This collection system simple structure, convenient operation, it is simple and convenient to wash the sample, can dismantle the dismantlement folding, portable can satisfy the field demand of sampling to the algae of living, is a section and is fit for being used for open-air aquatic organism monitoring's sampling tool.

Drawings

Fig. 1 is a schematic view of an overall structure of an embodiment of the present invention;

FIG. 2 is a schematic view of the components of the present invention;

FIG. 3 is a partial schematic view of part A of the present invention;

FIG. 4 is a side view of the components of the collecting mechanism of the present invention;

FIG. 5 is a schematic view of the telescopic rod of the present invention;

fig. 6 is a schematic view of an overall structure of the second embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the collection mechanism, 101, the back plate, 1011, the fixing base, 1012, "T" shape rotation axis, 102, the left side board, 1021, the draw-in groove, 103, the right side board, 104, the front bezel, 1041, gather the end, 105, the position circle, 106, the flat seal groove, 107, the recess, 2, the string bag, 201, the flexible sleeve pipe, 202, the strip of paper used for sealing jack, 3, the telescopic link, 301, the connector, 302, the single section pole, 303, the handle, 4, the sample collector, 401, annular clamp, 402, rotatory plunger, 5, the strip of paper used for sealing.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1-2, a collection system suitable for periphytic algae, includes collection mechanism 1, string bag 2, the sample collector 4 that from the top set gradually, collection mechanism 1 is equipped with upper shed and under shed, string bag 2 is the bell-shaped setting of falling, and it is equipped with upper shed and under shed, string bag 2 adopts the spun silk material to drag the washing in aqueous after gathering good sample. The mesh number of the net bag 2 can be changed according to the size of the sample. The upper shed of gathering mechanism 1 is equipped with and is the convex collection end 1041 of arc, and the thickness of gathering end 1041 reduces from bottom to top in proper order, and this sets up the border that makes collection end 1041 comparatively sharp, is favorable to scraping and gets the algae sample. The lower opening of the collecting mechanism 1 is detachably connected with the upper opening of the net bag 2 in a sealing way, and the lower opening of the net bag 2 is connected with the upper part of the sample collector 4 in a sealing way; still be equipped with rotary mechanism and telescopic link 3 on the mechanism of gathering 1, telescopic link 3 through rotary mechanism with gather 1 articulated of mechanism.

When field attached algae needs to be collected, the collection device is assembled, an operator holds the telescopic rod 3 by hand, the collection end 1041 of the upper opening of the collection mechanism 1 is aligned to the sampling substrate to scrape the attached algae, and in the process of scraping an algae sample, the rotating mechanism can rotate according to the needs of the operator to adjust the angle; during the algae of collection fell to tuck net 2 of collection mechanism 1 below, can hand telescopic link 3 and carry out the algae sample in the tuck net 2 along with water mopping, the algae sample after the washing is accomplished is concentrated in sample collector 4, then dismantles being connected between tuck net 2 and the sample collector 4, can take out the algae sample of collection. When the acquisition device is not needed, the acquisition device can be disassembled for storage; the components such as the net bag 2 and the like are easy-to-consume components, and when the components are damaged, the components can be conveniently detached and replaced. This collection system simple structure, convenient operation, it is simple and convenient to wash the sample, can dismantle the dismantlement folding, portable can satisfy the field demand of sampling to the algae of living, is a section and is fit for being used for open-air aquatic organism monitoring's sampling tool.

In this embodiment, the collecting mechanism 1 includes a front plate 104, a left side plate 102, a rear plate 101, and a right side plate 103, and any adjacent two of the front plate 104, the left side plate 102, the rear plate 101, and the right side plate 103 are fixedly connected through a clamping groove 1021 to form a channel; the upper end of the front plate 104 is provided with an arc-shaped convex acquisition end 1041, the outer side surface of the rear plate 101 is provided with a rotating mechanism, and the rotating mechanism is fixedly connected with the telescopic rod 3. When the device is not needed, all components of the acquisition mechanism 1 can be disassembled, so that the space is saved and the device is convenient to carry.

More specifically, as shown in fig. 3, which is a partial enlarged view of the snap-in connection, and fig. 4, which is a side view of the components of the acquisition mechanism, the left side plate 102 and the right side plate 103 are symmetrically arranged. Two sides of the left side plate 102 and the right side plate 103 are respectively provided with a clamping groove 1021 at positions close to the front plate 104 and the rear plate 101, and the clamping groove 1021 is wide in the interior and narrow in the opening; the shapes of the edges of the front plate 104 and the back plate 101 close to the left side plate 102 and the right side plate 103 respectively are matched with the clamping groove 1021; the two side edges of the front plate 104 and the back plate 101 are respectively inserted into the corresponding slots 1021 from top to bottom, that is, the front plate 104, the left side plate 102, the back plate 101 and the right side plate 103 are fixedly connected together, so that the acquisition mechanism 1 is formed. The clamping groove type connecting structure is simple and flexible, can be assembled when in use, can be flexibly disassembled when in no use, and is convenient to store and carry. It is necessary to control the friction at the slot-type connection so that it does not slip off automatically and easily.

In this embodiment, be equipped with on the upper end outer wall of gathering mechanism 1 and encircle gather mechanism 1's recess 107, recess 107 is located in the coplanar, just be equipped with position circle 105 in the recess 107. The retainer ring 105 may be a rubber ring (e.g., rubber ring) with elasticity and high strength, or may be fastened by a nylon cable tie. Because the front plate 104, the left side plate 102, the rear plate 101, and the right side plate 103 of the collecting mechanism 1 are connected through the engaging groove 1021, when an operator holds the telescopic rod 3 to collect a sample, when a component of a force acting on the rear plate 101 in the direction of the engaging groove 1021 is larger than a frictional force between the rear plate 101 and the left side plate 102 or the rear side plate 103, the rear plate may slide along the engaging groove 1021, so that the collecting mechanism 1 may be scattered. The locating ring 105 in the groove 107 locates the front plate 104, the left side plate 102, the rear plate 101 and the right side plate 103 on the acquisition mechanism 1, which is equivalent to applying double insurance for the firmness of the acquisition mechanism 1 and avoiding the displacement of all components on the acquisition mechanism 1.

In this embodiment, the lower part of collection mechanism 1 is equipped with flat groove 106, flat groove 106 encircles collection mechanism 1's outer wall, flat groove 106 is the outside "C" shape structure of opening, be equipped with strip of paper used for sealing 5 in flat groove 106, strip of paper used for sealing 5 will the upper opening of string bag 2 with flat groove 106 compresses tightly. The shape of the seal 5 is complementary to the opening shape of the flat seal groove 106, and the seal and the flat seal groove are matched with each other, so that an effective attaching effect can be achieved. The edge part of the upper opening of the net bag 2 is embedded between the seal 5 and the flat seal groove 106, and the seal 5 and the flat seal groove 106 are mutually attached to reliably press and fix the edge part of the upper opening of the net bag 2. When the device is not needed, the seal 5 can be drawn out, so that the net bag 2 is detached from the collecting mechanism 1, and the storage and carrying are convenient. Meanwhile, when the net bag 2 needs to be replaced due to the fact that the size of the sample needing to be sampled is different or the net bag 2 is damaged, the net bag 2 can be flexibly replaced by detaching the sealing strip 5.

In this embodiment, the upper shed of string bag 2 is equipped with flexible sleeve 201, flexible sleeve 201 with flat groove 106 cooperation of sealing, flexible sleeve 201 need use high strength, stand wear and tear material in principle, can adopt nylon cloth to make up at the upper shed of string bag 2 and form, also can adopt the soft sleeve pipe of other high strengths and the upper shed fixed connection of string bag 2. The flexible sleeve 201 is provided with seal insertion holes 202, the number of the seal insertion holes 202 may be the same as the number of the seals, or two seals 5 may share one seal insertion hole 202. The seal 5 passes through the seal insertion hole 202 of the flexible sleeve 201 and engages with the flat seal groove 106. The upper opening of the net bag 2 is set to be the type of a flexible sleeve 201, the seal 5 penetrates through the seal jack 202, the flexible sleeve 201 is sleeved on the seal 5, the seal 5 is embedded into the flat seal groove 106 on the acquisition mechanism 1 to compress the flexible sleeve 201 on the acquisition mechanism 1, and therefore the reliable connection between the net bag 2 and the acquisition mechanism 1 is achieved. The design of the flexible sleeve 201 ensures that even if the seal 5 is not matched with a certain section in the flat seal groove 106, the net bag 2 is not loosened from the acquisition mechanism 1, so that the connection between the net bag 2 and the acquisition mechanism 1 is more reliable.

In this embodiment, the rotating mechanism includes a pair of fixing seats 1011 mounted on the collecting mechanism 1 and a "T" shaped rotating shaft 1012, and the "T" shaped rotating shaft 1012 is transversely disposed on the rear plate 101. The pair of fixing bases 1011 are respectively disposed at the end portions of two ends coaxially disposed on the "T" -shaped rotating shaft 1012, the fixing bases 1011 are in interference fit with the "T" -shaped rotating shaft 1012, and the end portion of the third end on the "T" -shaped rotating shaft 1012 is fixedly connected to the telescopic rod 3 through a thread or a screw, in this embodiment, a thread connection is adopted. In the process of collecting samples, the rotating mechanism can provide an angle adjusting function, the telescopic rod 3 makes circular motion around the axes of two ends coaxially arranged on the T-shaped rotating shaft 1012, the maximum angle adjustment can reach 180 degrees vertically, and an operator can collect samples at different positions more conveniently.

In this embodiment, as shown in fig. 5, the telescopic rod 3 includes a connector 301, at least one single-section rod 302, and a handle 303 that are connected in sequence, one end of the connector 301 is fixedly connected to the rotating mechanism, and the other end of the connector 301 is fixedly connected to the single-section rod 302. In consideration of the labor intensity in the sampling process and the weight of the device, the telescopic rod 3 is preferably made of aluminum profiles, and the aluminum profiles are light in weight, corrosion resistant and high in strength and can meet the use requirements of the device; the outer wall of the handle 303 can be covered by a soft rubber material, and anti-skid particles can be arranged on the surface of the handle 303 due to the wading of the use environment of the device, so that the device is prevented from slipping in the sample collection process. When algae samples are collected in the field, the distance between the collection point and an operator is often different in length, and the length of the telescopic rod 3 can be adjusted by increasing or reducing the number of the single-section rods 302, so that the sample collection is successfully realized.

In this embodiment, the sample collector 4 is tapered from top to bottom, the upper portion of the sample collector 4 is pressed against the lower opening of the net bag 2 through an annular clamp 401, the lower portion of the sample collector 4 is provided with an opening, and the opening is provided with a rotary plunger 402. When the sample in the sample collector 4 needs to be taken out after the sample is collected, the rotating plunger 402 on the sample collector 4 is unscrewed, and the sample in the sample collector 4 is placed into the sample bottle, so that the sample sampling is completed. The process is convenient and clean to operate, and the sample collector 4 is arranged to concentrate the cleaned algae samples and facilitate the concentration and the taking out of the samples. When the sample collection is not needed, the annular clamp 401 can be opened, and the sample collector 4 is detached, so that the sample collector is convenient to store and carry.

Example two:

as shown in fig. 5, a collection system suitable for periphytic algae, includes collection mechanism 1, string bag 2, the sample collector 4 that from the top set gradually, collection mechanism 1 is equipped with upper shed and under shed, string bag 2 is the bell-shaped setting of falling, and it is equipped with upper shed and under shed, string bag 2 adopts the spun silk material to drag the washing in aqueous after gathering good sample. The mesh number of the net bag 2 can be changed according to the size of the sample. The upper shed of gathering mechanism 1 is equipped with and is the convex collection end 1041 of arc, and the thickness of gathering end 1041 reduces from bottom to top in proper order, and this sets up the border that makes collection end 1041 comparatively sharp, is favorable to scraping and gets the algae sample. The lower opening of the collecting mechanism 1 is detachably connected with the upper opening of the net bag 2 in a sealing way, and the lower opening of the net bag 2 is connected with the upper part of the sample collector 4 in a sealing way; still be equipped with rotary mechanism and telescopic link 3 on the mechanism of gathering 1, telescopic link 3 through rotary mechanism with gather 1 articulated of mechanism.

In this embodiment, the rotating mechanism includes a pair of fixing seats 1011 mounted on the collecting mechanism 1 and a "T" shaped rotating shaft 1012, and the "T" shaped rotating shaft 1012 is vertically disposed on the rear plate 101. The pair of fixing bases 1011 are respectively disposed at the end portions of two ends coaxially disposed on the "T" -shaped rotating shaft 1012, the fixing bases 1011 are in interference fit with the "T" -shaped rotating shaft 1012, and the end portion of the third end on the "T" -shaped rotating shaft 1012 is fixedly connected to the telescopic rod 3 through a thread or a screw, in this embodiment, a thread connection is adopted. In the process of collecting samples, the rotating mechanism can provide an angle adjusting function, the telescopic rod 3 makes circular motion around the axes of two ends coaxially arranged on the T-shaped rotating shaft 1012, the maximum angle adjustment can reach 180 degrees, and an operator can collect samples at different positions more conveniently.

When field attached algae needs to be collected, the collection device is assembled, an operator holds the telescopic rod 3 by hand, the collection end 1041 of the upper opening of the collection mechanism 1 is aligned to the sampling substrate to scrape the attached algae, and in the process of scraping an algae sample, the rotating mechanism can rotate according to the needs of the operator, so that the angle is adjusted; the algae sample of collection drops in string bag 2 of collection mechanism 1 below, can hold telescopic link 3 and carry out the algae sample in string bag 2 along with the water mopping, and the algae sample after the washing is accomplished drops and concentrates on in sample collector 4, then opens rotatory plunger 402, can take out the algae sample of collection. When the collecting device is not needed, the collecting device can be disassembled and stored; the components such as the net bag 2 and the like are easy-to-consume components, and when the components are damaged, the components can be conveniently detached and replaced. This collection system simple structure, convenient operation, it is simple and convenient to wash the sample, can dismantle the dismantlement folding, portable can satisfy the field demand of sampling to the algae of living, is a section and is fit for being used for open-air aquatic organism monitoring's sampling tool.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The collecting device suitable for the periphytic algae is characterized by comprising a collecting mechanism (1), a net bag (2) and a sample collector (4), wherein the collecting mechanism (1) is provided with an upper opening and a lower opening, the net bag (2) is arranged in an inverted bell shape and is provided with an upper opening and a lower opening, the upper opening of the collecting mechanism (1) is provided with a collecting end (1041) protruding in an arc shape, the lower opening of the collecting mechanism (1) is detachably and hermetically connected with the upper opening of the net bag (2), and the lower opening of the net bag (2) is hermetically connected with the upper part of the sample collector (4); the collecting mechanism (1) is further provided with a rotating mechanism and a telescopic rod (3), and the telescopic rod (3) is hinged to the collecting mechanism (1) through the rotating mechanism.

2. The harvesting device for periphytic algae according to claim 1, wherein the harvesting mechanism (1) comprises a front plate (104), a left side plate (102), a rear plate (101) and a right side plate (103), and any adjacent two of the front plate (104), the left side plate (102), the rear plate (101) and the right side plate (103) are fixedly connected through a clamping groove (1021) to form a channel; the upper end of front bezel (104) is equipped with and is arc convex collection end (1041), the lateral surface of back plate (101) is equipped with rotary mechanism, rotary mechanism with telescopic link (3) fixed connection.

3. The harvesting device for periphytic algae according to claim 1, wherein the outer wall of the upper end of the harvesting mechanism (1) is provided with a groove (107) surrounding the harvesting mechanism (1), the grooves (107) are arranged in the same plane, and a positioning ring (105) is arranged in the groove (107).

4. The harvesting device for periphytic algae according to claim 1 or 2, wherein a flat sealing groove (106) is formed in the lower portion of the harvesting mechanism (1), the flat sealing groove (106) surrounds the outer wall of the harvesting mechanism (1), the flat sealing groove (106) is of a C-shaped structure with an outward opening, a sealing strip (5) is arranged in the flat sealing groove (106), and the sealing strip (5) presses the upper opening of the net bag (2) and the flat sealing groove (106).

5. The collecting device for the periphytic algae according to claim 4, wherein the upper opening of the tuck net (2) is provided with a flexible sleeve (201), the flexible sleeve (201) is matched with the flat sealing groove (106), the flexible sleeve (201) is provided with a sealing strip inserting hole (202), and the sealing strip (5) penetrates through the sealing strip inserting hole (202) of the flexible sleeve (201) and is matched with the flat sealing groove (106).

6. The harvesting device for periphyton algae according to claim 1, wherein the rotating mechanism comprises a pair of fixing bases (1011) and a "T" shaped rotating shaft (1012) which are installed on the harvesting mechanism (1), the pair of fixing bases (1011) are respectively arranged at the end parts of two ends which are coaxially arranged on the "T" shaped rotating shaft (1012), the fixing bases (1011) are in interference fit with the "T" shaped rotating shaft (1012), and the end part of the third end on the "T" shaped rotating shaft (1012) is fixedly connected with the telescopic rod (3).

7. The harvesting device suitable for periphytic algae according to claim 6, wherein the telescopic rod (3) comprises a connector (301), at least one single-section rod (302) and a handle (303) which are connected in sequence, one end of the connector (301) is fixedly connected with the rotating mechanism, and the other end of the connector (301) is fixedly connected with the single-section rod (302).

8. The harvesting device for periphytic algae according to claim 1, wherein the sample collector (4) is tapered from top to bottom, the upper part of the sample collector (4) is pressed against the lower opening of the net bag (2) through an annular clamp (401), the lower part of the sample collector (4) is provided with an opening, and the opening is provided with a rotary plunger (402).