Sampling equipment for layered detection of water quality

Abstract

The utility model relates to the technical field of sampling equipment, in particular to water quality layered detection sampling equipment which comprises a threaded rod, a threaded cylinder is in threaded connection with the outside of the threaded rod, and a positioning pipe is connected to the bottom of the threaded cylinder through a ball bearing; the sampling assembly comprises a first sampling barrel and a second sampling barrel, the first sampling barrel is fixedly connected to the bottom of the threaded rod, the end of the first sampling barrel is covered with a first cover plate, the other side of the first cover plate is fixedly connected with a threaded supporting rod, and a second cover plate is arranged outside the threaded supporting rod. Through layering treatment of the sampling assembly, when the device samples a water source, sampling operation of a double-layer water source can be achieved at a time, so that the using efficiency of the device is improved, cyclic sampling treatment is avoided, the using convenience of the device is improved, and meanwhile the height interval between the upper sampling barrel and the lower sampling barrel can be flexibly adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling equipment, in particular to a water quality stratification detection sampling equipment. Background Art

[0002] A water sampler is a device used to collect water samples, which can help people monitor and evaluate water quality. Commonly used water samplers include cup-type fixed-depth samplers, which can achieve accurate sampling of water sources at a fixed depth when sampling water quality. However, when in use, it can only achieve single-depth water source detection and cannot achieve stratified sampling processing, which greatly reduces the one-time double-layer height synchronous sampling of the device, thereby increasing the complexity of the device's sampling, and requires reciprocating sampling of water sources at different heights, increasing work intensity, and the height of the upper and lower layers cannot be adjusted. Utility Model Content

[0003] The utility model aims to provide a water quality stratified detection sampling device to solve the problem that the above-mentioned background technology can only realize single-depth water source detection, cannot realize stratified sampling processing, and the height of the upper and lower layers cannot be adjusted.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a water quality stratification detection sampling device, comprising:

[0005] A threaded rod, wherein the outer thread of the threaded rod is connected to a threaded barrel, and the bottom of the threaded barrel is connected to a positioning tube through a ball bearing;

[0006] A sampling assembly, the sampling assembly includes a first sampling barrel and a second sampling barrel, the first sampling barrel is fixedly connected to the bottom of the threaded rod, the end of the first sampling barrel is covered with a first cover plate, the other side of the first cover plate is fixedly connected to a threaded support rod, a second cover plate is arranged on the outside of the threaded support rod, the second sampling barrel is connected to the outside of the threaded rod by a positioning clamp, and the second cover plate covers the end of the second sampling barrel.

[0007] Preferably, the inner wall of the threaded barrel is provided with an internal thread segment, the outer wall of the upper half of the threaded rod is provided with an external thread adapted to the internal thread segment, the bottom of the threaded barrel is in an embedded step shape, and the step is slidably connected to the lower half of the threaded rod.

[0008] Preferably, the positioning tube is fixedly connected to the surface of the second cover plate by screws, a through hole adapted to the threaded rod is opened at the center of the second cover plate, and a sealing rubber ring is provided on the inner wall of the through hole.

[0009] Preferably, guide shafts are fixedly connected to the upper surfaces of the first sampling cylinder and the second sampling cylinder, and the guide shafts are distributed in a circular array, and guide holes adapted for the guide shafts to penetrate are formed on the first cover plate and the second cover plate.

[0010] Preferably, sealing gaskets are clamped inside the first cover plate and the second cover plate, and nuts are connected to the external threads of the threaded support rod, and the nuts are squeezed on the upper and lower sides of the second cover plate.

[0011] Preferably, a through hole adapted to the threaded rod is opened at the center of the second sampling cylinder, and a sealing ring is fixedly connected to the inner wall of the through hole. A connecting tube is provided at the bottom of the second sampling cylinder, and a positioning clamp is sleeved on the outside of the connecting tube.

[0012] Preferably, a mounting hole adapted for the threaded support rod is provided at the edge of the second cover plate, and a liquid outlet pipe is provided at the bottom of both the first sampling tube and the second sampling tube, and a valve is provided on the liquid outlet pipe.

[0013] Compared with the prior art, the beneficial effect of the utility model is that the utility model, through the layered processing of the sampling component, enables the device to perform double-layer water source sampling operations at one time when sampling the water source, thereby improving the efficiency of the device, avoiding cyclic sampling processing, and improving its convenience of use. At the same time, the height interval of the upper and lower sampling tubes can be flexibly adjusted, thereby realizing adaptive sampling processing of layers with different spacings, further improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0016] Figure 3 For the utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0017] Figure 4 For the utility model Figure 2 A schematic diagram of the enlarged structure of B;

[0018] Figure 5 This is a schematic diagram of the explosion structure of the first sampling tube of the utility model.

[0019] In the figure: 1. threaded rod; 2. threaded barrel; 21. internal thread section; 3. positioning tube; 4. sampling assembly; 41. first sampling barrel; 42. guide shaft; 43. first cover plate; 44. threaded support rod; 45. second sampling barrel; 46. second cover plate; 47. sealing gasket; 5. positioning clamp. DETAILED DESCRIPTION

[0020] 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 of the utility model. Obviously, the described embodiments 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.

[0021] See also Figure 1-5 The utility model provides an embodiment: a water quality stratification detection sampling device, comprising:

[0022] The threaded rod 1 is connected with a threaded barrel 2 through its external thread, and a positioning tube 3 is connected to the bottom of the threaded barrel 2 through a ball bearing. The threaded barrel 2 and the positioning tube 3 are connected in rotation, so that the threaded rod 1 and the threaded barrel 2 are adjusted in thread, and the positioning tube 3 is driven to move. The sealing gasket 47 is horizontally displaced up and down under the guidance of the threaded support rod 44 through the rotation connection of the positioning tube 3.

[0023] The sampling assembly 4 includes a first sampling barrel 41 and a second sampling barrel 45. The first sampling barrel 41 is fixedly connected to the bottom of the threaded rod 1. The end of the first sampling barrel 41 is covered with a first cover plate 43. The other side of the first cover plate 43 is fixedly connected to a threaded support rod 44. A second cover plate 46 is arranged on the outside of the threaded support rod 44. The second sampling barrel 45 is connected to the outside of the threaded rod 1 through a positioning clamp 5, and the second cover plate 46 covers the end of the second sampling barrel 45. Through the arrangement of this structure, double-layer sampling processing can be realized, and the spacing height between the first sampling barrel 41 and the second sampling barrel 45 can be adjusted, thereby further improving the flexibility of use.

[0024] Furthermore, the inner wall of the threaded barrel 2 is provided with an internal thread section 21, and the outer wall of the upper half of the threaded rod 1 is provided with an external thread adapted to the internal thread section 21. The bottom of the threaded barrel 2 is in an embedded step shape, and the step shape is slidingly connected to the lower half of the threaded rod 1. The threaded connection of the upper half is used for adjusting its upper and lower heights, and the sliding connection of the lower half plays a good guiding and limiting role.

[0025] Furthermore, the positioning tube 3 is fixedly connected to the surface of the second cover plate 46 by screws. A through hole adapted to the threaded rod 1 is opened at the center of the second cover plate 46, and a sealing rubber ring is provided on the inner wall of the through hole, which can improve the sealing effect of sliding with the threaded rod 1, thereby improving the sealing of the cover and reducing the friction loss of metal contact.

[0026] Furthermore, the upper surfaces of the first sampling tube 41 and the second sampling tube 45 are fixedly connected with guide shafts 42, and the guide shafts 42 are distributed in a circular array. The first cover plate 43 and the second cover plate 46 are provided with guide holes for the guide shafts 42 to pass through. The guide shafts 42 slide through the cover plates, which not only guide but also filter the water, thereby preventing large impurities in the water source from entering the interior.

[0027] Furthermore, sealing gaskets 47 are both engaged inside the first cover plate 43 and the second cover plate 46, and the external threads of the threaded support rod 44 are connected to nuts, and the nuts are squeezed on the upper and lower sides of the second cover plate 46. Through the mutual cooperation between the nuts and the threaded support rod 44, the position of the second cover plate 46 can be flexibly adjusted.

[0028] Furthermore, a through hole adapted to the threaded rod 1 is opened at the center of the second sampling barrel 45, and a sealing ring is fixedly connected to the inner wall of the through hole. A connecting tube is arranged at the bottom of the second sampling barrel 45, and a positioning clamp 5 is arranged on the outside of the connecting tube. Through the arrangement of this structure, the positioning clamp 5 can be further squeezed to position the second sampling barrel 45, so as to complete the flexible adjustment of the position of the second sampling barrel 45.

[0029] Furthermore, a mounting hole adapted to the threaded support rod 44 is opened at the edge of the second cover plate 46, and a liquid outlet pipe is provided at the bottom of the first sampling tube 41 and the second sampling tube 45, and a valve is provided on the liquid outlet pipe. The setting of the liquid outlet pipe and the valve facilitates the discharge of the sampled water source.

[0030] Working principle: The threaded rod 1 and threaded barrel 2 used in this application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be repeated here. When the utility model is in use, first, the spacing between the first sampling barrel 41 and the second sampling barrel 45 is adjusted according to the interval requirements of its stratified sampling, and then a handheld device is used to place one end of the first sampling barrel 41 inside the water body. By holding the threaded rod 1 and the threaded barrel 2 and rotating the threaded barrel 2, when it is displaced, the second cover plate 46 is displaced through the positioning tube 3, and further the first cover plate 43 is displaced through the cooperation of the threaded support rod 44 and the nut, so that the first sampling barrel 41 and the second sampling barrel 45 are used to sample the water source, and the first cover plate 43 and the second cover plate 46 are further moved down to achieve a sealed cover on the first sampling barrel 41 and the second sampling barrel 45, and then taken out of the water body to complete the sampling of the water source.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A water quality stratification detection sampling device, characterized in that: include: A threaded rod (1), wherein the outer thread of the threaded rod (1) is connected to a threaded barrel (2), and the bottom of the threaded barrel (2) is connected to a positioning tube (3) through a ball bearing; A sampling assembly (4), the sampling assembly (4) comprising a first sampling barrel (41) and a second sampling barrel (45), the first sampling barrel (41) being fixedly connected to the bottom of a threaded rod (1), the end of the first sampling barrel (41) being covered with a first cover plate (43), the other side of the first cover plate (43) being fixedly connected to a threaded support rod (44), the outside of the threaded support rod (44) being provided with a second cover plate (46), the second sampling barrel (45) being connected to the outside of the threaded rod (1) via a positioning clamp (5), and the second cover plate (46) covering the end of the second sampling barrel (45).

2. A water quality stratification detection sampling device according to claim 1, characterized in that: The inner wall of the threaded barrel (2) is provided with an internal thread section (21), the outer wall of the upper half of the threaded rod (1) is provided with an external thread adapted to the internal thread section (21), the bottom of the threaded barrel (2) is in the shape of an embedded step, and the step is slidably connected to the lower half of the threaded rod (1).

3. A water quality stratification detection sampling device according to claim 1, characterized in that: The positioning tube (3) is fixedly connected to the surface of the second cover plate (46) by means of screws; a through hole adapted to the threaded rod (1) is provided at the center of the second cover plate (46), and a sealing rubber ring is provided on the inner wall of the through hole.

4. A water quality stratification detection sampling device according to claim 1, characterized in that: The upper surfaces of the first sampling tube (41) and the second sampling tube (45) are both fixedly connected with guide shafts (42), and the guide shafts (42) are distributed in a circular array. The first cover plate (43) and the second cover plate (46) are both provided with guide holes adapted for the guide shafts (42) to pass through.

5. A water quality stratification detection sampling device according to claim 1, characterized in that: The first cover plate (43) and the second cover plate (46) are both internally engaged with sealing gaskets (47), and the external threads of the threaded support rod (44) are connected with nuts, and the nuts are squeezed on the upper and lower sides of the second cover plate (46).

6. A water quality stratification detection sampling device according to claim 5, characterized in that: A through hole adapted to the threaded rod (1) is provided at the center of the second sampling tube (45), and a sealing ring is fixedly connected to the inner wall of the through hole. A connecting pipe is provided at the bottom of the second sampling tube (45), and a positioning clamp (5) is sleeved on the outside of the connecting pipe.

7. A water quality stratification detection sampling device according to claim 5, characterized in that: The edge of the second cover plate (46) is provided with a mounting hole adapted to fit the threaded support rod (44), and the bottoms of the first sampling tube (41) and the second sampling tube (45) are both provided with liquid outlet pipes, and valves are provided on the liquid outlet pipes.

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