CN215726980U

CN215726980U - Marine pollution sampling equipment

Info

Publication number: CN215726980U
Application number: CN202121014141.0U
Authority: CN
Inventors: 许章华; 刘辉; 王琳; 陈秋霞
Original assignee: Fuzhou Zhonggu Haichuang Technology Development Co ltd
Current assignee: Fuzhou Zhonggu Haichuang Technology Development Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2022-02-01
Anticipated expiration: 2031-05-12

Abstract

The utility model relates to a marine pollution sampling device, which comprises a lifting rope, a sampling mechanism, a lower drop rope and a weight block which are connected in sequence, wherein the sampling mechanism comprises a collecting tank, a water injection cylinder and an adjusting assembly for adjusting the starting pressure of water injection, the collecting tank is in a hollow inverted cone structure, an inlet and an outlet are arranged on the bottom surface of the collecting tank, the water injection cylinder is vertically communicated into a hollow T-shaped structure by a transverse cylinder and a vertical cylinder, the lower end of the vertical cylinder is connected with the inlet and the outlet, the upper end of the vertical cylinder is connected with the side wall of the transverse cylinder to form a communication port, one end of the transverse cylinder is provided with the water injection port, the other end of the transverse cylinder is in a closed structure, the adjusting assembly comprises a limiting check ring, an opening and closing piston, a spring, a positioning piston and an adjusting screw rod which are sequentially arranged in the transverse cylinder along the axial direction, one end of the adjusting screw rod is fixed on the other surface of the positioning piston, one surface of the positioning piston is connected with the other surface of the opening and closing piston through the spring, one surface of the opening and closing piston is limited by a limiting retainer ring fixed on the inner wall of one end of the transverse cylinder, and the other end of the adjusting screw rod extends out of the transverse cylinder.

Description

Marine pollution sampling equipment

Technical Field

The utility model relates to the technical field of environmental protection equipment, in particular to marine pollution sampling equipment.

Background

With the development of economy, the water pollution problem of the marine environment is showing the trend of regional expansion, pollution diversification and degree severity, and generating negative effects on the ecological environment and marine organisms, and the deterioration of the marine ecological environment directly influences the development of aquaculture industry and causes the food safety problem of aquatic products, especially emerging pollutants discovered in recent years, such as endocrine disruptors, polycyclic aromatic hydrocarbon substances and the like, and even directly threatens the sustainable utilization of marine fishery resources. For this reason, the environmental protection department needs to periodically sample seawater in a specific area such as a culture area for comprehensive water quality detection and analysis.

At present, a manual collection mode is generally adopted for water sample collection, workers on a ship directly throw a sampling device such as a collection tank into the sea, the collection tank is connected with a pull rope, and the collection tank filled with seawater is pulled up through the pull rope, so that water sample collection at the position is completed; however, the sampling device has a single structure, can only be used for collecting sea surface water quality, and cannot meet the collection requirement of a detector on the sea water quality at a certain depth.

Disclosure of Invention

The utility model aims to provide the marine pollution sampling equipment which is reasonable in design and convenient for collecting seawater at different depths aiming at the defects in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a marine pollution sampling device comprises a lifting rope, a sampling mechanism, a lower falling rope and a weight block which are sequentially connected, wherein the sampling mechanism comprises a collecting tank, a water injection cylinder and an adjusting assembly for adjusting the starting pressure of water injection, the collecting tank is of a hollow inverted cone structure with an upward bottom surface and a downward top point, an inlet and an outlet are arranged on the bottom surface of the collecting tank, the water injection cylinder is vertically communicated by a transverse cylinder and a vertical cylinder to form a hollow T-shaped structure, the lower end of the vertical cylinder is connected with the inlet and the outlet of the collecting tank, the upper end of the vertical cylinder is connected with the side wall of the transverse cylinder to form a communication port, one end of the transverse cylinder is provided with a water injection port, the other end of the transverse cylinder is of a closed structure, the adjusting assembly comprises a limit check ring, an opening and closing piston, a spring, a positioning piston and an adjusting screw rod which are sequentially arranged in the transverse cylinder along the axial direction, the adjusting screw rod is in threaded connection with the other end surface of the transverse cylinder, and one end of the adjusting screw rod is fixed on the other surface of the positioning piston, one surface of the positioning piston is connected with the other surface of the opening and closing piston through a spring, the opening and closing piston is limited by a limiting retainer ring fixed on the inner wall of one end of the transverse cylinder, and the other end of the adjusting screw rod extends out of the transverse cylinder for adjusting operation.

Furthermore, a pressure sensor used for sensing the abutting pressure of the opening and closing piston is arranged on one surface of the limiting retainer ring corresponding to the opening and closing piston. This design makes its pressure that can be clear grasp open and close the piston and lean on spacing retaining ring, and then grasps the spring and be used for blocking the elasticity size of water injection passageway intercommunication between water filling port and the intercommunication mouth.

Preferably, the pressure sensor is a waterproof pressure sensor.

Preferably, the limiting retainer ring is fixed on the inner wall of one end of the transverse cylinder through a plurality of fasteners. This design makes spacing retaining ring can carry out convenient, swift installation or dismantlement according to actual demand such as washing, installation waterproof pressure sensor.

Preferably, the fastener is a screw.

Preferably, a plurality of lifting rings for connecting the lifting rope are arranged on the bottom surface of the collection tank. This design has improved the convenience and the fastness of lifting rope fixing on gathering the tank bottoms face.

Preferably, a drop ring used for connecting a drop rope is arranged at the top of the collection tank. This design has improved convenience and fastness that the rope that falls was fixed at collection jar apex.

Preferably, a sampling opening is formed in the side wall of the collecting tank, and a sealing cover capable of being opened and closed is arranged at the sampling opening. The design enables the seawater flowing out from the sampling port in the collecting tank to be used for comprehensive detection and analysis of water quality by opening the sealing cover.

Preferably, the sealing cover is replaced by a valve.

Preferably, the collection tank is a hollow inverted pyramid structure or an inverted cone structure. This design is favorable to improving the collection jar along with the stability of pouring weight process self that sinks.

Preferably, the lower end of the vertical cylinder is in threaded connection with an inlet and an outlet of the collection tank. This design makes the water injection section of thick bamboo can dismantle the separation with the collection jar to make the water injection section of thick bamboo can both use respectively with the collection jar, reuse has improved the use flexibility greatly.

The utility model adopts the technical scheme, and the working process is as follows:

before the sampling mechanism enters water, the other end of the adjusting screw rod is operated, the length of the adjusting screw rod extending out of the transverse cylinder is adjusted, the axial position of one end of the adjusting screw rod and the axial position of the positioning piston in the transverse cylinder are driven to be adjusted, the positioning and fixing effects are achieved by utilizing threaded connection between the adjusting screw rod and the other end face of the transverse cylinder, one surface of the positioning piston is pushed by a spring to open and close the other surface of the piston, one surface of the opening and closing piston is abutted against a limiting retainer ring and limited by the limiting retainer ring, meanwhile, the opening and closing piston blocks a water injection channel from a water injection port to a communication port, a water injection closing state is formed, and during the period, the abutting force of the opening and closing piston abutted against the limiting retainer ring depends on the spring elasticity and serves as the preset pressure for starting water injection.

When sampling mechanism entered water, the marine equipment such as hull was fixed in to the lifting rope upper end or with the lifting rope upper end to the manual work is held, and fix the lifting rope lower extreme on sampling mechanism, sampling mechanism is driven by the pouring weight through weighing down rope and pouring weight fixed connection and is sunk the ocean, the in-process sinks, the sea water pressure that the piston received is opened and close to water filling port department increases gradually, when reaching and being greater than preset pressure gradually to the sea water pressure that receives, it overcomes spring force and slides to the horizontal section of thick bamboo other end gradually to open and close the piston, water filling port to the water injection passageway between the intercommunication mouth has been linked together, form the water injection and open the state, the sea water passes through the water filling port in proper order, intercommunication mouth and exit get into in the collection jar, the sea water collection has been accomplished, the spring is compressed deformation production elasticity during.

After the sea water is gathered and is accomplished, upwards pulling the rise with sampling mechanism through lifting rope upper end, at the in-process that rises, the sea water pressure that the piston received is opened and close to water filling port department reduces gradually, and when being less than spring force, the spring overcomes sea water pressure and recovers the promotion gradually and opens and close the piston and slide to horizontal section of thick bamboo one end, has blocked the water filling passageway between water filling port to the intercommunication mouth, forms the water injection closed condition, keeps apart the sea water of gathering in the collection tank and external sea water.

After the water outlet of the sampling mechanism, the water outlet can be connected with the inlet and outlet of the collection tank through the lower end of the vertical cylinder, the inlet and outlet of the collection tank are connected with seawater in the collection tank for detection and analysis, the sealing cover arranged on the side wall of the collection tank can be opened, the seawater flowing out from the sampling port in the collection tank is connected with the seawater for detection and analysis, and even the seawater can slide towards the other end of the horizontal cylinder by applying an external force on the opening and closing piston, so that the seawater in the collection tank flows out from the inlet and outlet, and the seawater in the collection tank is connected with the water filling port of the water filling cylinder for detection and analysis.

The utility model can sample seawater at different depths according to the needs of a detector, and controls the acquisition tank to automatically inject water and sample in oceans at different depths by presetting the preset pressure for driving the opening and closing piston to slide to open and close the water injection channel. In addition, in the use, when the sea water of the different degree of depth is sampled to same sea area, needs, can carry out interval series connection integrative with a plurality of sampling mechanism to set up different pressure of predetermineeing to a plurality of sampling mechanism respectively, then put in and go into once only the sea water of the different degree of depth of income in the ocean, work efficiency is high.

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 introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;

FIG. 1 is a schematic structural diagram of a marine pollution sampling device according to embodiment 1 of the present invention;

FIG. 2 is an enlarged view of a portion of the adjustment assembly shown at A in FIG. 1;

FIG. 3 is a schematic structural diagram of a marine pollution sampling device according to embodiment 2 of the present invention;

FIG. 4 is a schematic structural view of an adjusting unit in embodiment 3 of the present invention;

fig. 5 is a schematic structural diagram of a marine pollution sampling device according to embodiment 4 of the present invention.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the utility model, as detailed in the appended claims.

Example 1

As shown in one of fig. 1 to 5, the marine pollution sampling device of the present invention comprises a lifting rope 10, a sampling mechanism, a dropping rope 20 and a weight 30, which are connected in sequence, wherein the sampling mechanism comprises a collection tank 40, a water injection cylinder 50 and an adjusting assembly 60 for adjusting the starting pressure of water injection, the collection tank 40 is a hollow inverted cone structure with an upward bottom surface and a downward vertex, the bottom surface of the collection tank 40 is provided with an inlet and an outlet 41, the water injection cylinder 50 is vertically communicated with a horizontal cylinder 51 and a vertical cylinder 52 to form a hollow T-shaped structure, the lower end of the vertical cylinder 52 is connected with the inlet and the outlet 41 of the collection tank 40, the upper end of the vertical cylinder 52 is connected with the side wall of the horizontal cylinder 51 to form a communication port 53, one end of the horizontal cylinder 51 is provided with a water injection port 54, and the other end of the horizontal cylinder 51 is a closed structure, the adjusting assembly 60 comprises a limit retainer ring 61, an opening and a closing piston 62, a spring 63, a positioning piston 64 and an adjusting screw 65 which are sequentially arranged in the horizontal cylinder 51 along the axial direction, the adjusting screw rod 65 is in threaded connection with the other end face of the transverse cylinder 51, one end of the adjusting screw rod 65 is fixed on the other surface of the positioning piston 64, one surface of the positioning piston 64 is connected with the other surface of the opening and closing piston 62 through the spring 63, one surface of the opening and closing piston 62 is limited by the limiting retainer ring 61 fixed on the inner wall of one end of the transverse cylinder 51, and the other end of the adjusting screw rod 65 extends out of the transverse cylinder 51 for adjusting operation.

Preferably, the limit stop ring 61 is fixed on the inner wall of one end of the transverse cylinder 51 through a plurality of fasteners 66. This design makes spacing retaining ring 61 can carry out convenient, swift installation or dismantlement according to actual demand such as washing, installation waterproof pressure sensor.

Preferably, the fasteners 66 are screws.

Preferably, a plurality of lifting rings 42 for connecting the lifting rope 10 are provided on the bottom surface of the collection can 40. This design improves the ease and robustness of securing the lift cord 10 to the bottom surface of the collection canister 40.

Preferably, a drop ring 43 for connecting the drop line 20 is arranged at the vertex of the collecting tank 40. This design improves the ease and robustness with which the drop line 20 is secured at the apex of the collection canister 40.

Preferably, the collection tank 40 has a hollow inverted pyramid structure or an inverted cone structure. This design is beneficial to improve the stability of the collection tank 40 itself along with the weight 30 during the sinking process.

Preferably, the lower end of the vertical cylinder 52 is in threaded connection with the inlet and outlet 41 of the collection tank 40. This design makes water injection section of thick bamboo 50 can dismantle the separation with gathering jar 40 to make water injection section of thick bamboo 50 and gather jar 40 can both use respectively, reuse has improved the flexibility of use greatly.

Preferably, the other end of the adjusting screw 65 is provided with an operating hand wheel 68.

Example 2

As shown in fig. 3, based on the structure of embodiment 1, a sampling port 44 is provided on the sidewall of the collection tank 40, and a sealing cover 45 that can be opened and closed is provided at the sampling port 44. The design enables the seawater flowing out of the sampling tank 40 through the sampling port 44 to be accessed for comprehensive detection and analysis of water quality by opening the sealing cover 45.

Preferably, the sealing cover 45 is replaced with a valve.

Example 3

As shown in fig. 4, on the basis of the structure of embodiment 1 or embodiment 2, a pressure sensor 67 for sensing the abutting pressure of the opening and closing piston 62 is disposed on a surface of the limit retainer 61 corresponding to the opening and closing piston 62. The design makes it can clearly grasp the pressure of the opening and closing piston 62 against the limiting retainer ring 61, and further grasp the elastic force of the spring 63 for blocking the communication of the water injection channel between the water injection port 54 and the communication port 53.

Preferably, the pressure sensor 67 is a waterproof pressure sensor. The design enables the device to continue to work after entering water.

Preferably, the pressure sensor 67 has a wireless pressure sensor.

Example 4

As shown in fig. 5, on the structure basis of embodiment 3, can carry out interval series connection through connecting rope 70 with more than two sampling mechanism and form an organic whole to set up different preset pressure to more than two sampling mechanism respectively after, can put into the ocean and once only go into the sea water of water collection same sea area, the different degree of depth, work efficiency is high.

before the sampling mechanism enters water, the other end of the adjusting screw rod 65 is operated, the length of the adjusting screw rod 65 extending out of the transverse cylinder 51 is adjusted, the axial position of one end of the adjusting screw rod 65 and the axial position of the positioning piston 64 in the transverse cylinder 51 are driven to be adjusted, the positioning and fixing effects are achieved by utilizing threaded connection between the adjusting screw rod 65 and the other end face of the transverse cylinder 51, one surface of the positioning piston 64 pushes the other surface of the opening and closing piston 62 through the spring 63, one surface of the opening and closing piston 62 is enabled to abut against the limiting retainer ring 61 and is limited by the limiting retainer ring 61, meanwhile, the opening and closing piston 62 blocks a water injection channel from the water injection port 54 to the communication port 53, a water injection closing state is formed, and during the period, the abutting force of the opening and closing piston 62 abutting against the limiting retainer ring 61 depends on the elastic force of the spring 63 and is used as preset pressure for starting water injection.

When the sampling mechanism enters water, the upper end of the lifting rope 10 is manually held or the upper end of the lifting rope 10 is fixed on marine equipment such as a ship body, the lower end of the lifting rope 10 is fixed on the sampling mechanism, the sampling mechanism is driven by the weight 30 to sink to the sea through the lower weight rope 20 and the weight 30, in the sinking process, the seawater pressure borne by the opening and closing piston 62 at the water filling port 54 is gradually increased, until the seawater pressure borne reaches and is gradually greater than the preset pressure, the opening and closing piston 62 overcomes the elastic force of the spring 63 to gradually slide towards the other end of the transverse cylinder 51, a water filling channel between the water filling port 54 and the communication port 53 is communicated, a water filling opening state is formed, seawater sequentially enters the collecting tank 40 through the water filling port 54, the communication port 53 and the inlet and the outlet 41, the seawater collection is completed, and the spring 63 is compressed and deformed to generate the elastic force in the period.

After the seawater collection is completed, the sampling mechanism is upwards pulled and lifted through the upper end of the lifting rope 10, in the lifting process, the seawater pressure borne by the opening and closing piston 62 at the position of the water filling port 54 is gradually reduced, until the seawater pressure is smaller than the elastic force of the spring 63, the spring 63 overcomes the seawater pressure to gradually restore and push the opening and closing piston 62 to slide towards one end of the transverse cylinder 51, a water filling channel from the water filling port 54 to the communication port 53 is blocked, a water filling closing state is formed, and the seawater collected in the collection tank 40 is isolated from the external seawater.

After the sampling mechanism goes out water, the lower end of the vertical cylinder 52 can be in threaded connection with the inlet and outlet 41 of the collection tank 40, seawater in the collection tank 40 can be collected from the inlet and outlet 41 of the collection tank 40 for detection and analysis, the sealing cover 45 arranged on the side wall of the collection tank 40 can also be opened, seawater flowing out from the sampling port 44 in the collection tank 40 can be collected for detection and analysis, and even the seawater can slide towards the other end of the horizontal cylinder 51 by applying an external force to the opening and closing piston 62, so that the seawater in the collection tank 40 sequentially flows out through the inlet and outlet 41, the communication port 53 and the water filling port 54, and the seawater in the collection tank 40 can be collected from the water filling port 54 of the water filling cylinder 50 for detection and analysis.

According to the utility model, seawater at different depths can be sampled according to the needs of a detector, and the collection tank 40 is controlled to automatically inject water and sample in oceans at different depths by presetting the preset pressure for driving the opening and closing piston 62 to slide to open and close the water injection channel.

While the foregoing is directed to the preferred embodiment of the present invention, it will be appreciated that numerous modifications and variations may be devised by those skilled in the art in light of the above teachings. Therefore, the technical field of the utility model based on the concept of the utility model through logic analysis, reasoning or limited experiments of equivalent changes, modifications, substitutions and variations, should be determined by the claims scope of protection.

Claims

1. A marine pollution sampling equipment which characterized in that: the device comprises a lifting rope, a sampling mechanism, a lower drop rope and a weight block which are sequentially connected, wherein the sampling mechanism comprises a collecting tank, a water injection cylinder and an adjusting assembly for adjusting the starting pressure of water injection, the collecting tank is of a hollow inverted cone structure with an upward bottom surface and a downward vertex, an inlet and an outlet are arranged on the bottom surface of the collecting tank, the water injection cylinder is vertically communicated with a vertical cylinder to form a hollow T-shaped structure, the lower end of the vertical cylinder is connected with the inlet and the outlet of the collecting tank, the upper end of the vertical cylinder is connected with the side wall of the horizontal cylinder to form a communication port, one end of the horizontal cylinder is provided with a water injection port, the other end of the horizontal cylinder is of a closed structure, the adjusting assembly comprises a limit check ring, an opening and closing piston, a spring, a positioning piston and an adjusting screw rod which are sequentially arranged in the horizontal cylinder along the axial direction, the adjusting screw rod is in threaded connection with the other end surface of the transverse cylinder, one end of the adjusting screw rod is fixed on the other surface of the positioning piston, and the other surface of the positioning piston is connected with the other surface of the opening and closing piston through the spring, one surface of the opening and closing piston is limited by a limiting retainer ring fixed on the inner wall of one end of the transverse cylinder, and the other end of the adjusting screw rod extends out of the transverse cylinder for adjusting operation.

2. The marine pollution sampling device of claim 1, wherein: and the limiting retainer ring is fixed on the inner wall of one end of the transverse cylinder through a plurality of fasteners.

3. The marine pollution sampling device of claim 1 or 2, wherein: and a pressure sensor used for sensing the abutting pressure of the opening and closing piston is arranged on one surface of the limiting check ring corresponding to the opening and closing piston.

4. The marine pollution sampling device of claim 1, wherein: and a plurality of lifting rings for connecting lifting ropes are arranged on the bottom surface of the collection tank.

5. The marine pollution sampling device of claim 1, wherein: and a falling ring used for connecting a falling rope is arranged at the top of the collection tank.

6. The marine pollution sampling device of claim 1, wherein: the side wall of the collecting tank is provided with a sampling port, and the sampling port is provided with a sealing cover which can be opened and closed.

7. The marine pollution sampling device of claim 1, wherein: the collection tank is of a hollow inverted pyramid structure or an inverted cone structure.

8. The marine pollution sampling device of claim 1, wherein: the lower end of the vertical cylinder is in threaded connection with the inlet and the outlet of the collecting tank.