Flood sampling device

Abstract

The invention relates to the technical field of flood sampling, in particular to a flood sampling device. The invention provides a flood sampling device. The flood sampling device comprises an external bracket, a collection container, a floating assembly and a release assembly, automatic sampling can be achieved through linkage of the floating assembly and the releasing assembly, and the safety risks such as slipping and drowning of personnel are thoroughly avoided; sampling is accurately triggered through water level changes, floating objects and high-concentration silt in the flood peak period can be effectively avoided, and blocking of a collecting opening is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flood sampling, in particular to a flood sampling device. BACKGROUND

[0002] After the occurrence of flood, sampling and analyzing the flood water body is a key basic work for disaster assessment, water quality monitoring, pollution tracing and subsequent disaster prevention and mitigation research. At present, the existing flood sampling method mainly relies on manual handheld sampler to complete. The manual handheld sampling method needs the operating personnel to be close to the flood bank or to board the ship to carry out operation, which not only faces the safety risks such as slipping and drowning caused by water flow impact, but also has low sampling efficiency, and it is difficult to realize continuous sampling of different time periods and different sections in the flood evolution process, and cannot completely capture the dynamic change rule of the flood water body parameters. SUMMARY (1) The problem to be solved by the present application is that the existing manual handheld sampling method has poor safety and low sampling efficiency.

[0003] (2) Technical scheme In order to solve the above technical problems, the present application provides a flood sampling device, which comprises an external support, a collection container, a floating assembly and a release assembly. The collection container is fixedly arranged on the external support, and an upper end of the collection container is provided with a collection port. The floating assembly comprises a first connecting piece, a first floating piece and a second floating piece; the first connecting piece is slidably arranged in the collection port; the first floating piece is located in the collection container and is fixedly connected with a lower end of the first connecting piece, and the first floating piece is used for opening or closing a lower end of the collection port; the second floating piece is located outside the collection container and is fixedly connected with an upper end of the first connecting piece. The release assembly comprises a release shaft and a third floating piece; the external support is further provided with a mounting cavity, a side wall of the mounting cavity is provided with a spiral slide; the release shaft is located in the mounting cavity and can axially slide and circumferentially rotate relative to the mounting cavity; the third floating piece is fixedly connected with an upper end of the release shaft through the slide, and the third floating piece is higher than the second floating piece. When the third floating piece is located at the lower end of the slide, the lower end of the release shaft is connected with the upper end of the first connecting piece, and the first floating piece closes the lower end of the collection port; the third floating piece slides upward along the slide, and the lower end of the release shaft is separated from the upper end of the first connecting piece.

[0004] Optionally, the floating assembly further comprises a second connecting piece, and the release assembly further comprises a third connecting piece. One end of the second connecting piece is connected with the upper end of the first connecting piece; one end of the third connecting piece is connected with the lower end of the release shaft; when the third floating piece is located at the lower end of the slide, the lower end of the one end of the second connecting piece away from the first connecting piece is abutted with the upper end of the one end of the third connecting piece away from the release shaft.

[0005] Optionally, the release assembly further comprises an elastic piece and a sliding piece. One end of the third connecting piece is provided with a lifting head; the sliding piece is in sliding connection with the lifting head, and the elastic piece is located between the sliding piece and the lifting head; when the third floating piece is located at the lower end of the slide, the upper end of the sliding piece is abutted with the lower end of the one end of the second connecting piece away from the first connecting piece, and the elastic piece provides a vertical upward force on the sliding piece support.

[0006] Optionally, the sliding piece comprises an abutting part and a plurality of grappling hooks. One end of the grappling hook is connected with the abutting part, and the plurality of grappling hooks are arranged at intervals along the circumferential side of the abutting part; the lifting head is provided with a first sliding hole; the lifting head is located in a space surrounded by the plurality of grappling hooks, and one of the grappling hooks is slidingly arranged in the first sliding hole; one end of the elastic piece is connected with the lifting head, and the other end is connected with the abutting part.

[0007] Optionally, the slide is further provided with a spring sheet for preventing the release shaft from falling back; and / or, the slide is divided into a first section and a second section; the first section is in a spiral shape, and the second section extends vertically downward; the upper end of the first section is in communication with the upper end of the second section.

[0008] Optionally, the side wall of the mounting cavity is further provided with a through hole, and the lifting head is connected with the release shaft through the through hole.

[0009] Optionally, a second sliding hole is arranged in the collection port; and the first connecting piece is slidingly arranged in the sliding hole.

[0010] Optionally, the collection container comprises a bottle body and a bottle cap; and the bottle cap is in threaded connection with the bottle body.

[0011] Optionally, a counterweight is further arranged at the lower end of the external support.

[0012] Optionally, the external supports, the collection containers, the floating assemblies and the release assemblies are arranged in multiple and one-to-one correspondence; and the upper end and the lower end of any two external supports are detachably connected.

[0013] The beneficial effects of the present application are as follows: The flood sampling device provided by the application comprises an external support, a collection container, a floating assembly and a release assembly; the collection container is fixedly arranged on the external support, and an upper end of the collection container is provided with a collection opening; the floating assembly comprises a first connecting piece, a first floating piece and a second floating piece; the first connecting piece is slidably arranged in the collection opening; the first floating piece is arranged in the collection container and is fixedly connected with a lower end of the first connecting piece, and the first floating piece is used for opening or closing a lower end of the collection opening; the second floating piece is arranged outside the collection container and is fixedly connected with an upper end of the first connecting piece; the release assembly comprises a release shaft and a third floating piece; the external support is further provided with a mounting cavity, and a side wall of the mounting cavity is provided with a spiral slide; the release shaft is arranged in the mounting cavity and can axially slide and circumferentially rotate relative to the mounting cavity; the third floating piece is fixedly connected with an upper end of the release shaft through the slide, and the third floating piece is arranged higher than the second floating piece; when the third floating piece is arranged at a lower end of the slide, a lower end of the release shaft is connected with an upper end of the first connecting piece, and the first floating piece closes the lower end of the collection opening; the third floating piece slides upward along the slide, and the lower end of the release shaft is separated from the upper end of the first connecting piece.

[0014] The flood sampling device provided by the application can realize automatic sampling through the linkage of the floating assembly and the release assembly without manual operation near the flood area, and completely avoids the safety risks such as slipping and drowning of personnel; the flood sampling device can accurately trigger sampling (opening the collection opening when the water level drops) by using water level change, can effectively avoid floating objects and high-concentration silt in the peak period of flood, and can avoid blockage of the collection opening, and can strictly control the sampling time through the first floating piece to ensure that the sample has good representativeness. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 The structural diagram of the flood sampling device provided by the embodiment of the application is shown in the figure; Figure 2 The sectional view of the flood sampling device provided by the embodiment of the application is shown in the figure; Figure 3 The structural diagram of the floating assembly is shown in the figure; Figure 4 The structural diagram of the external support is shown in the figure; Figure 5Structure diagram of the release assembly; Figure 6 Structure diagram of the release assembly cooperating with the floating assembly; Figure 7 Structure diagram of the third floating member cooperating with the slide; Figure 8 Structure diagram when multiple external supports, collection containers, floating assemblies and release assemblies are provided.

[0017] Icon: 100-external support; 110-mounting cavity; 120-slide; 121-first section; 122-second section; 123-spring piece; 130-perforation; 200-collection container; 210-bottle body; 220-bottle cap; 221-collection opening; 222-second sliding hole; 300-floating assembly; 310-first connecting member; 320-first floating member; 330-second floating member; 340-second connecting member; 400-release assembly; 410-release shaft; 420-third floating member; 430-third connecting member; 431-lifting head; 440-elastic member; 450-sliding member; 451-abutment; 452-grab hook; 500-counterweight. DETAILED DESCRIPTION

[0018] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0020] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0023] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The following examples and features in the examples can be combined with each other without conflict.

[0025] The flood sampling device provided by the embodiment of the present application can be placed on a platform downstream of a river channel when the river channel is releasing flood. As shown in Figures 1 to 7As shown, the flood sampling device provided by the embodiment of the present application comprises an external support 100, a collection container 200, a floating assembly 300 and a release assembly 400. The collection container 200 is used for collecting a flood sample, and the collection container 200 can be fixedly arranged on the external support 100 by welding, riveting or clamping. An upper end of the collection container 200 is provided with a collection port 221, and the flood sample can enter the collection container 200 through the collection port 221. The floating assembly 300 comprises a first connecting piece 310, a first floating piece 320 and a second floating piece 330. The first connecting piece 310 is arranged in the collection port 221 and can slide in the collection port 221. The first floating piece 320 and the second floating piece 330 are fixedly arranged at the upper end and the lower end of the collection container 200, respectively. The buoyancy generated by any one of the first floating piece 320 and the second floating piece 330 is greater than the gravity of the floating assembly 300. The first floating piece 320 and the second floating piece 330 are both hollow hemispherical structures, and the first connecting piece 310 is a circular shaft structure. The first floating piece 320 is located inside the collection container 200 and can open or close the collection port 221 of the collection container 200. The second floating piece 330 is located outside the collection container 200. The release assembly 400 comprises a release shaft 410 and a third floating piece 420. The external support 100 is provided with a mounting cavity 110. The cross-sectional shape of the mounting cavity 110 matches the cross-sectional shape of the release shaft 410, and both are circular. The release shaft 410 is mounted in the mounting cavity 110, and the release shaft 410 can rotate along the circumference of the release shaft 410 and slide along the axial direction of the release shaft 410 in the mounting cavity 110. The side wall of the mounting cavity 110 is provided with a spiral slide 120. The third floating piece 420 is connected to the release shaft 410 through a connecting rod passing through the slide 120, and the third floating piece 420 is arranged higher than the second floating piece 330.

[0026] In the initial state, i.e. when the flood sampling device does not collect a flood sample, the third floating member 420 is located at the lower end of the slide 120, at this time, the lower end of the release shaft 410 is connected with the upper end of the first connecting member 310, under the action of the release assembly 400, the first floating member 320 can close the lower end of the collection port 221, and the flood sample cannot enter the collection container 200 through the collection port 221. When the water level of the flood reaches the third floating member 420, under the action of the buoyancy, the third floating member 420 slides upward in the slide 120, at this time, the release shaft 410 rotates along the circumference of itself and slides along the axis of itself in the installation cavity 110, so that the lower end of the release shaft 410 is separated from the upper end of the first connecting member 310, and since the third floating member 420 is arranged higher than the second floating member 330, at this time, the second floating member 330 is completely immersed in the water, under the action of the buoyancy, the first floating member 320 still closes the lower end of the collection port 221. When the water level drops, the second floating member 330 also drops with the water level, at this time, the first floating member 320 no longer closes the lower end of the collection port 221, and the flood sample can enter the collection container 200 through the collection port 221.

[0027] That is, the flood sample collection device in the embodiment is arranged at the downstream of the river channel to collect the flood sample after the flood is discharged. Since the water flow at the downstream of the river channel is relatively stable, the third floating member 420 rarely slides upward along the slide 120 under the impact of the water waves, and even if the above-mentioned situation exists, it can be solved by arranging a plurality of flood sampling devices.

[0028] The flood sampling device of the embodiment of the application can realize automatic sampling through the linkage of the floating assembly 300 and the release assembly 400 without manual operation near the flood area, thereby completely avoiding the safety risks such as slipping and drowning of personnel; the flood sampling device can accurately trigger sampling (the collection port 221 is opened when the water level drops) by using the change of the water level, can effectively avoid the floating objects and high-concentration silt in the peak period of the flood, and can avoid the blockage of the collection port 221, and at the same time, the sampling time is strictly controlled by the first floating member 320, so that the sample has good representativeness.

[0029] In the optional embodiment of the application, the floating assembly 300 further comprises a second connecting member 340, and the release assembly 400 further comprises a third connecting member 430; the second connecting member 340 has a rod-shaped structure, one end of the second connecting member 340 is connected with the upper end of the first connecting member 310, and one end of the third connecting member 430 is connected with the lower end of the release shaft 410; when the third floating member 420 is located at the lower end of the slide 120, the lower end of the one end of the second connecting member 340, which is away from the first connecting member 310, abuts against the upper end of the one end of the third connecting member 430, which is away from the release shaft 410; in this way, under the lifting action of the release assembly 400, the first floating member 320 can close the lower end of the collection port 221.

[0030] In the embodiment, the second connecting member 340 is in a rod structure, and at least one end of the second connecting member 340 away from the first connecting member 310 is in a square shape, and one end of the third connecting member 430 away from the release shaft 410 is in a square shape, so as to increase the contact area between the second connecting member 340 and the third connecting member 430.

[0031] In an optional embodiment of the present application, the release assembly 400 further comprises an elastic member 440 and a sliding member 450; one end of the third connecting member 430 away from the release shaft 410 is provided with a lifting head 431; the sliding member 450 is in sliding connection with the lifting head 431, and the elastic member 440 is located between the sliding member 450 and the lifting head 431; when the third floating member 420 is located at the lower end of the slide 120, the upper end of the sliding member 450 abuts against the lower end of the one end of the second connecting member 340 away from the first connecting member 310, and the elastic member 440 vertically upwardly supports the sliding member 450, so as to improve the sealing property of the first floating member 320, and meanwhile, the friction between the sliding member 450 and the second connecting member 340 is also improved.

[0032] In an optional embodiment of the present application, the sliding member 450 comprises an abutting portion 451, and further comprises a plurality of hooks 452; one end of each hook 452 is provided with a protrusion, and the other end is connected with the abutting portion 451; the plurality of hooks 452 are arranged along the circumferential side of the abutting portion 451, so as to enclose a limiting space; the lifting head 431 is located in the space enclosed by the plurality of hooks 452 and can slide relative to the sliding member 450; the protrusions at the ends of the hooks 452 are used for preventing the lifting head 431 from being separated from the space; the lifting head 431 is further provided with a first sliding hole, and one of the hooks 452 is slidably arranged in the first sliding hole; the elastic member 440 is a spring, one end of the elastic member 440 is connected with the lifting head 431, and the other end is connected with the abutting portion 451; when the third floating member 420 is located at the lower end of the slide 120, the one end of the abutting portion 451 away from the hooks 452 abuts against the lower end of the second connecting member 340.

[0033] Furthermore, in the embodiment, when the one end of the abutting portion 451 away from the hooks 452 abuts against the lower end of the second connecting member 340, the elastic member 440 is in a compressed state; when the one end of the abutting portion 451 away from the hooks 452 is separated from the lower end of the second connecting member 340, the elastic member 440 is reset; at this time, even if the third floating member 420 falls back with the water level, the abutting portion 451 cannot return to the lower end of the second connecting member 340, so as to avoid the influence of the fact that the first floating member 320 cannot open the collecting port 221 after the water level falls, on the collection of flood samples.

[0034] In an optional embodiment of the present application, the slide 120 is further provided with an elastic piece 123, which is used to prevent the third floating member 420 from falling back when the water level drops. In use, the connecting rod between the third floating member 420 and the release shaft 410 can slide upwards beyond the elastic piece 123; when the water level drops, the connecting rod between the third floating member 420 and the release shaft 410 cannot fall back beyond the elastic piece 123 under the action of the elastic piece 123.

[0035] In an optional embodiment of the present application, the slide 120 is divided into a first section 121 and a second section 122; the first section 121 is in a spiral shape, and the second section 122 extends vertically downwards, and the upper end of the first section 121 is in communication with the upper end of the second section 122. When the water level drops, the connecting rod between the third floating member 420 and the release shaft 410 directly enters the second section 122.

[0036] In an optional embodiment of the present application, the side wall of the mounting cavity 110 is further provided with a through hole 130, and the lifting head 431 is connected with the release shaft 410 through the through hole 130. In this way, the release shaft 410 is entirely located in the mounting cavity 110, thereby avoiding the influence of water flow impact on the release shaft 410.

[0037] In an optional embodiment of the present application, the collection port 221 is provided with a second sliding hole 222; the first connecting member 310 is slidably arranged in the sliding hole. The first sliding hole is coaxial with the collection port 221, and the second sliding hole 222 is arranged to avoid the influence of the first connecting member 310 on the water inlet of the collection port 221. The second through hole can be fixed to the inner wall of the collection port 221 through a connecting rod.

[0038] In an optional embodiment of the present application, the collection container 200 comprises a bottle body 210 and a bottle cap 220; the bottle cap 220 is threadedly connected with the bottle body 210, and the collection port 221 is located on the bottle cap 220; the threadedly connected bottle body 210 and bottle cap 220 have good sealing performance, and also facilitate pouring out the flood sample in the bottle body 210.

[0039] In an optional embodiment of the present application, as shown in Figure 8 the external support 100 is further provided with a counterweight 500 fixedly arranged at the lower end of the external support 100 to improve stability.

[0040] In an optional embodiment of the present application, as shown in Figure 8 the external support 100, the collection container 200, the floating assembly 300 and the release assembly 400 are configured as a plurality of and one-to-one corresponding arrangements; the upper end and the lower end of any two external supports 100 are detachably connected, and the lowermost external support 100 is provided with the counterweight 500.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A flood sampling device, characterized in that, The application relates to an external support (100), a collection container (200), a floating assembly (300) and a release assembly (400). The collection container (200) is fixedly arranged on the external support (100), and an upper end of the collection container (200) is provided with a collection opening (221). The floating assembly (300) comprises a first connecting piece (310), a first floating piece (320) and a second floating piece (330); the first connecting piece (310) is slidably arranged in the collection opening (221); the first floating piece (320) is arranged in the collection container (200) and is fixedly connected with a lower end of the first connecting piece (310), and the first floating piece (320) is used for opening or closing a lower end of the collection opening (221); and the second floating piece (330) is arranged outside the collection container (200) and is fixedly connected with an upper end of the first connecting piece (310). The release assembly (400) comprises a release shaft (410) and a third floating piece (420); the external support (100) is further provided with a mounting cavity (110), a side wall of the mounting cavity (110) is provided with a spiral slide (120); the release shaft (410) is arranged in the mounting cavity (110) and can axially slide and circumferentially rotate relative to the mounting cavity (110); the third floating piece (420) is fixedly connected with an upper end of the release shaft (410) through the slide (120), and the third floating piece (420) is arranged higher than the second floating piece (330). When the third floating piece (420) is arranged at a lower end of the slide (120), a lower end of the release shaft (410) is connected with an upper end of the first connecting piece (310), and the first floating piece (320) closes the lower end of the collection opening (221); the third floating piece (420) slides upwards along the slide (120), and the lower end of the release shaft (410) can be separated from the upper end of the first connecting piece (310). The floating assembly (300) further comprises a second connecting piece (340), and the release assembly (400) further comprises a third connecting piece (430).

2. The floodwater sampling device of claim 1, wherein, One end of the second connecting piece (340) is connected with the upper end of the first connecting piece (310); one end of the third connecting piece (430) is connected with the lower end of the release shaft (410); when the third floating piece (420) is arranged at the lower end of the slide (120), a lower end of the one end of the second connecting piece (340) away from the first connecting piece (310) is abutted with an upper end of the one end of the third connecting piece (430) away from the release shaft (410). The release assembly (400) further comprises an elastic piece (440) and a sliding piece (450).

3. The floodwater sampling device of claim 2, wherein, ​ One end of the third connecting piece (430) is provided with a lifting head (431); the sliding piece (450) is in sliding connection with the lifting head (431), and the elastic piece (440) is located between the sliding piece (450) and the lifting head (431); when the third floating piece (420) is located at the lower end of the slide (120), the upper end of the sliding piece (450) is in abutment with the lower end of one end of the second connecting piece (340) away from the first connecting piece (310), and the elastic piece (440) supports the sliding piece (450) vertically upward.

4. The floodwater sampling device of claim 3, wherein, The sliding piece (450) comprises an abutment portion (451) and a plurality of grappling hooks (452); One end of the grappling hook (452) is connected with the abutment portion (451), and a plurality of the grappling hooks (452) are arranged at intervals along the circumferential side of the abutment portion (451); the lifting head (431) is provided with a first sliding hole; the lifting head (431) is located in the space surrounded by a plurality of the grappling hooks (452), and one of the grappling hooks (452) is slidingly arranged in the first sliding hole; one end of the elastic piece (440) is connected with the lifting head (431), and the other end is connected with the abutment portion (451).

5. The floodwater sampling device of claim 1, wherein, The slide (120) is further provided with a spring sheet (123) for preventing the release shaft (410) from falling back; and / or, the slide (120) is divided into a first section (121) and a second section (122); the first section (121) is in spiral shape, and the second section (122) extends vertically downward; the upper end of the first section (121) is in communication with the upper end of the second section (122).

6. The floodwater sampling device of claim 3, wherein, The side wall of the mounting cavity (110) is further provided with a through hole (130), and the lifting head (431) is connected with the release shaft (410) through the through hole (130).

7. The floodwater sampling device of claim 1, wherein, The collection port (221) is provided with a second sliding hole (222); and the first connecting piece (310) is slidingly arranged in the sliding hole.

8. The floodwater sampling device of claim 1, wherein, The collection container (200) comprises a bottle body (210) and a bottle cap (220); the bottle cap (220) is in threaded connection with the bottle body (210).

9. The floodwater sampling device of any one of claims 1 to 8, wherein, A counterweight (500) is further included, which is fixedly arranged at the lower end of the external support (100).

10. The floodwater sampling device of any one of claims 1 to 8, wherein, The external support (100), the collection container (200), the floating assembly (300) and the release assembly (400) are configured in multiple and one-to-one correspondence; the upper end and the lower end of any two external supports (100) are detachably connected.

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