A deep water fixed depth sampler

Abstract

The utility model embodiment discloses a deep-water fixed-depth sampler, which relates to the technical field of samplers. The deep-water fixed-depth sampler includes a container shell and a sampling device; the sampling device includes a sampling shell, a rebound locking mechanism and a compression mechanism; the sampling shell is provided with a first groove and a sampling channel; the compression mechanism is arranged in the first groove; the sampling channel is arranged on the inner wall of the first groove; the rebound locking mechanism includes a switch and a valve; the valve is arranged on the sampling channel, and the switch is connected to the valve and arranged on the inner wall of the first groove. The effect of improving the representativeness of sampling at a specific depth and reducing sampling errors is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of samplers, in particular to a deep-water fixed-depth sampler. Background Art

[0002] Traditional water samplers do not have the function of fixed-point sampling. For conventional water bodies and pharmaceutical storage tanks, the properties of samples in different water layers vary greatly, such as zooplankton, floating leaf plants, aerobic algae and microorganisms in the upper layer of natural water bodies; fish, higher aquatic plants and aerobic facultative anaerobic microorganisms in the middle layer; and submerged plants, benthic animals, sludge and anaerobic microorganisms in the bottom layer. In addition, the content of insoluble matter in the upper and lower layers of the pharmaceutical storage tank is also very different. When it is necessary to take deep samples or samples of a certain layer, there are considerable limitations. Due to the contaminated samples of liquids at different water depths, it is impossible to accurately obtain samples of the preset depth, and the poor representativeness of the samples is the main cause of sampling errors. Utility Model Content

[0003] The technical problem to be solved by the embodiments of the present utility model is that it is impossible to accurately obtain the liquid of a specific water layer and the representativeness of the sample is poor.

[0004] In order to solve the above problems, the embodiment of the utility model discloses a deep-water fixed-depth sampler, which can improve the representativeness of sampling at a specific depth and reduce sampling errors.

[0005] The utility model provides a deep-water fixed-depth sampler, which includes a container shell and a sampling device; the sampling device includes a sampling shell, a rebound locking mechanism and a compression mechanism; the sampling shell is provided with a first groove and a sampling channel; the compression mechanism is arranged in the first groove; the sampling channel is arranged on the inner wall of the first groove; the rebound locking mechanism includes a switch and a valve; the valve is arranged on the sampling channel, and the switch is connected to the valve and is arranged on the inner wall of the first groove.

[0006] A further technical solution is that the sampling shell is provided with a second groove, the valve includes a reset rod, the second groove is connected to the sampling channel, the reset rod is provided with a first hole, the reset rod is arranged in the second groove, and the first hole is connected to the sampling channel.

[0007] A further technical solution is that the switch includes a rebound lock tongue and an elastic member, the rebound lock tongue is provided with a second hole, the sampling shell is provided with a third groove, the rebound lock tongue and the elastic member are respectively arranged in the third groove, and the reset rod can pass through the second hole.

[0008] A further technical solution is that it also includes an adjusting mechanism, which is connected to the compression mechanism and the sampling shell respectively.

[0009] A further technical solution is that the compression mechanism includes a piston, a connecting member and a base, and the connecting member is respectively connected to the piston and the base and is on one side of the switch.

[0010] A further technical solution is that it also includes a first sealing ring, which is sleeved on the piston.

[0011] A further technical solution is that it also includes a second sealing ring, and the second sealing ring is sleeved on the base.

[0012] A further technical solution is that a first scale mark is provided on the surface of the container shell.

[0013] A further technical solution is that it also includes a handle, which is fixed on the container shell.

[0014] A further technical solution is that it also includes a rope, a surface of which is provided with a second scale mark and is detachably connected to the handle.

[0015] Compared with the prior art, the technical effects achieved by the embodiments of the present invention include:

[0016] Adjust the distance between the compression mechanism and the switch, and dive the deep-water fixed-depth sampler into the water. As the diving depth gradually increases, when the sampler reaches the preset water depth, the water pressure increases and drives the compression mechanism, which then touches the switch to open the sampling channel. The liquid sample enters the container shell through the sampling channel. The operator lifts the container shell, and the water pressure decreases, causing the compression mechanism to block the sampling channel, thereby preventing liquids of different water depths from entering the container shell and achieving fixed-depth sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a deep-water fixed-depth sampler provided in an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the structure of another deep-water fixed-depth sampler provided in an embodiment of the utility model.

[0020] Reference numerals

[0021] Container shell 1, sampling device 2, sampling shell 21, rebound locking mechanism 22, compression mechanism 23, first groove 211, sampling channel 212, switch 221, valve 222, second groove 213, first hole 2221, rebound lock tongue 2211, elastic member 2212, second hole 22111, third groove 214, adjustment mechanism 3, piston 231, connecting member 232, base 233, first sealing ring 4, first scale mark 5, handle 6. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments. Similar component numbers in the drawings represent similar components. Obviously, the embodiments to be described below are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0024] It should also be understood that the terms used in this utility model embodiment specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model embodiments. As used in the utility model embodiment specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0025] See also Figure 1-2 The embodiment of the utility model provides a deep-water fixed-depth sampler. The deep-water fixed-depth sampler includes a container shell 1 and a sampling device 2; the sampling device 2 includes a sampling shell 21, a rebound locking mechanism 22 and a compression mechanism 23; the sampling shell 21 is provided with a first groove 211 and a sampling channel 212; the compression mechanism 23 is arranged in the first groove 211; the sampling channel 212 is arranged on the inner wall of the first groove 211; the rebound locking mechanism 22 includes a switch 221 and a valve 222; the valve 222 is arranged on the sampling channel 212, and the switch 221 is connected to the valve 222 and is arranged on the inner wall of the first groove 211. The specific introduction of each component is as follows:

[0026] In this embodiment, the container shell 1 is provided with a water inlet and a water outlet, the sampling device 2 is installed at the water inlet, a flip cover is provided at the water outlet, the first groove 211 of the sampling shell 21 is connected with the water outlet, the compression mechanism 23 is installed in the first groove 211, wherein the position of the compression mechanism 23 in the first groove 211 can be changed by adjustment, and the rebound locking mechanism 22 is used to control the connection / closure of the sampling channel 212. The switch 221 includes a touch switch 221, which is installed on the inner wall of the first groove 211. After the compression mechanism 23 touches the switch 221, the sampling channel 212 is controlled to open, so that the liquid sample enters the first groove 211 from the water inlet, and then enters the interior of the container shell 1 through the sampling channel 212.

[0027] The working process of the deep water fixed depth sampler is as follows:

[0028] The distance between the compression mechanism 23 and the switch 221 is adjusted, and the deep-water fixed-depth sampler is submerged in the water. As the diving depth gradually increases, when the sampler dives to a preset water depth, the water pressure increases and drives the compression mechanism 23, so that the compression mechanism 23 touches the switch 221, thereby opening the sampling channel 212, and the liquid sample enters the container shell 1 through the sampling channel 212. The operator lifts the container shell 1, and the water pressure decreases, causing the compression mechanism 23 to block the sampling channel 212, thereby preventing liquids of different water depths from entering the interior of the container shell 1, thereby achieving fixed-depth sampling.

[0029] Continue to see Figure 1-2 In this embodiment, the sampling shell 21 is provided with a second groove 213, and the valve 222 includes a reset rod. The second groove 213 is connected to the sampling channel 212, and the reset rod is provided with a first hole 2221. The reset rod is arranged in the second groove 213, and the first hole 2221 is connected to the sampling channel 212.

[0030] Specifically, a spring is sleeved on the reset rod, which can be switched between a first position and a second position in the second groove 213. In this embodiment, the position of the reset rod is controlled by the switch 221. For example, the first position is above the second position. When the switch 221 is closed, the reset rod is in the first position in the second groove 213, and the first hole 2221 on the reset rod is not connected to the sampling channel 212. When the switch 221 is opened, the reset rod is in the second position in the second groove 213, and the first hole 2221 on the reset rod is connected to the sampling channel 212. The liquid sample enters the interior of the container shell 1 through the sampling channel 212 and the first hole 2221.

[0031] Furthermore, the switch 221 includes a rebound lock tongue 2211 and an elastic member 2212, the rebound lock tongue 2211 is provided with a second hole 22111, the sampling shell 21 is provided with a third groove 214, the rebound lock tongue 2211 and the elastic member 2212 are respectively arranged in the third groove 214, and the reset rod can pass through the second hole 22111.

[0032] Specifically, the elastic member 2212 includes a spring, one end of which is fixed on the sampling shell 21, and the other end is fixedly connected to the rebound lock tongue 2211, so that the rebound lock tongue can move left and right in the third groove 214. The rebound lock tongue 2211 is provided with a second hole 22111. In this embodiment, the compression mechanism 23 touches the rebound lock tongue 2211, the elastic member 2212 is compressed, and the reset rod falls into the second hole 22111, so that the first hole 2221 on the reset rod is connected with the sampling channel 212; the operator lifts the reset rod, the elastic member 2212 squeezes out the rebound lock tongue 2211, and the reset rod falls on the rebound lock tongue 2211, so that the first hole 2221 on the reset rod is not connected with the sampling channel 212.

[0033] Furthermore, it also includes an adjusting mechanism 3, and the adjusting mechanism 3 is connected to the compression mechanism 23 and the sampling shell 21 respectively.

[0034] Specifically, the adjusting mechanism 3 includes a knob. In this embodiment, the adjusting mechanism 3 is arranged at the bottom of the compression mechanism 23. The compression mechanism 23 is raised / lowered in the first groove 211 by rotating the knob. The switch 221 is fixedly mounted on the inner wall of the first groove 211. By changing the position of the compression mechanism 23, and then changing the distance between the compression mechanism 23 and the switch 221, sampling can be performed according to different depths by changing the compression amount of the compression mechanism 23 triggering the switch 221, so that the valve 222 is opened at a preset water depth, so that the liquid sample enters the container shell 1 through the sampling channel 212.

[0035] Furthermore, the compression mechanism 23 includes a piston 231 , a connecting member 232 and a base 233 . The connecting member 232 is connected to the piston 231 and the base 233 , respectively, and is located on one side of the switch 221 .

[0036] Specifically, the connecting member 232 includes a spring, a piston 231 is disposed at the upper end of the connecting member 232, and a base 233 is disposed at the lower end of the connecting member 232. The relationship between the movement amount x of the spring and the depth h of the water is (the spring elastic coefficient is k, the upper surface area of ​​the piston 231 is A, and the sample density is ρ): The sample liquid applies pressure to the piston 231, driving the piston 231 to move downward to compress the connecting piece 232. The piston 231 moves downward to touch the switch 221, thereby opening the valve 222, and the sample liquid enters the container housing 1 through the sampling channel 212. The position of the compression mechanism 23 in the first groove 211 can be adjusted to change the distance between the piston 231 and the switch 221, thereby ensuring that when the sampling device 2 enters the preset water depth, the piston 231 touches the switch 221 and then opens the valve 222, thereby achieving fixed-point sampling.

[0037] Furthermore, it also includes a first sealing ring 4 , which is sleeved on the piston 231 .

[0038] Specifically, the first sealing ring 4 is made of rubber material and is clamped between the piston 231 and the container shell 1 to prevent liquid from contacting the connecting piece 232 and prevent the connecting piece 232 from being oxidized.

[0039] Furthermore, it also includes a second sealing ring, which is sleeved on the base 233.

[0040] Specifically, the second sealing ring is made of rubber material and is clamped between the base 233 and the container shell 1 to prevent the liquid from contacting the regulating mechanism 3 and prevent the regulating mechanism 3 from oxidation.

[0041] Furthermore, a first scale mark 5 is provided on the surface of the container shell 1 .

[0042] Specifically, the first scale mark 5 is a scale mark in milliliters, which is used to indicate the volume of the liquid in the container shell 1. In this embodiment, the container shell 1 is made of a transparent material, and the volume of the liquid in the container shell 1 can be intuitively seen through the first scale mark 5.

[0043] Furthermore, it also includes a handle 6 , which is fixed on the container shell 1 .

[0044] Specifically, the handle 6 is made of stainless steel and installed on the container shell 1 to facilitate operators to lift the container shell 1. The stainless steel material has high corrosion resistance, which can prevent the handle 6 from being damaged by oxidation due to long-term contact with water, thereby improving the durability of the handle 6.

[0045] Furthermore, it also includes a rope, the surface of which is provided with a second scale mark and is detachably connected to the handle 6.

[0046] Specifically, the rope is made of nylon material. In this embodiment, a second scale mark is provided on the surface of the rope. The second scale mark is a scale line in centimeters, which is used to indicate the length of the rope. Tying the rope to the handle 6 is helpful for the operator to intuitively know the diving depth of the sampler, and stop lowering the rope when reaching the target water layer.

[0047] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0053] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include these modifications and variations.

[0054] The above is a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A deep water fixed depth sampler, characterized in that: It includes a container shell and a sampling device; The sampling device comprises a sampling shell, a rebound locking mechanism and a compression mechanism; The sampling shell is provided with a first groove and a sampling channel; the compression mechanism is provided in the first groove; the sampling channel is provided on the inner wall of the first groove; The rebound locking mechanism includes a switch and a valve; the valve is arranged on the sampling channel, and the switch is connected to the valve and is arranged on the inner wall of the first groove.

2. The deep water fixed depth sampler according to claim 1, characterized in that: The sampling shell is provided with a second groove, the valve includes a reset rod, the second groove is communicated with the sampling channel, the reset rod is provided with a first hole, the reset rod is arranged in the second groove, and the first hole is communicated with the sampling channel.

3. The deep water fixed depth sampler according to claim 2, characterized in that: The switch comprises a rebound lock tongue and an elastic member, the rebound lock tongue is provided with a second hole, the sampling shell is provided with a third groove, the rebound lock tongue and the elastic member are respectively arranged in the third groove, and the reset rod can pass through the second hole.

4. The deep water fixed depth sampler according to claim 1, characterized in that: It also includes an adjusting mechanism, which is connected to the compression mechanism and the sampling shell respectively.

5. The deep water fixed depth sampler according to claim 4, characterized in that: The compression mechanism comprises a piston, a connecting member and a base. The connecting member is respectively connected to the piston and the base and is located on one side of the switch.

6. The deep water fixed depth sampler according to claim 5, characterized in that: It also includes a first sealing ring, which is sleeved on the piston.

7. The deep water fixed depth sampler according to claim 5, characterized in that: It also includes a second sealing ring, which is sleeved on the base.

8. The deep water fixed depth sampler according to claim 1, characterized in that: A first scale mark is provided on the surface of the container shell.

9. The deep water fixed depth sampler according to claim 8, characterized in that: It also includes a handle, which is fixed on the container shell.

10. The deep water fixed depth sampler according to claim 9, characterized in that: It also includes a rope, a surface of which is provided with a second scale mark and is detachably connected to the handle.

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