Sampler with filtering function

Abstract

The utility model provides a sampler with a filtering function, which comprises a sampling main body and a filtering device arranged below the sampling main body, in the use process of the sampler, a water flow sample is sampled through the sampling main body, in the process, the water flow sample passes through a filter screen, and the sampled water flow sample is filtered through the filter screen, so that the sampling efficiency is improved. The bottom of the filter screen is arranged to be arc-shaped, and the arc-shaped design can more smoothly guide the water flow sample to pass through the filter screen, so that the friction and impact between the water flow and the filter screen are reduced, the water flow resistance is reduced, the smoothness of the water flow is favorably kept, the filtering efficiency of the filter screen is improved, and the sampling quality is improved. And the arc-shaped design can increase the contact area between the filter screen and water flow to a certain extent, so that the filtering area is increased. Therefore, the filter screen can capture more impurity particles, and the filtering effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampling equipment field especially, and it is sampling device with filter function. BACKGROUND

[0002] The sampler is a device or tool for extracting a certain number of samples from a population. Its design and use depend on the object and environment being studied, and it plays an important role in many fields, including but not limited to environmental science, biology, chemistry, food science, and materials science. In existing samplers, samplers are usually used to extract liquid samples. For example, in the process of environmental detection, a sampler is used to extract a water sample from a river.

[0003] In the existing sampler, it includes a sampling cylinder, a movable rod, a rubber block and a leading-out piece. One end of the movable rod is fixedly connected with the rubber block, and the outer side wall of the rubber block is in close contact with the inner side wall of the sampling cylinder. During use, when the rubber block is pulled outward by pulling the movable rod, the space inside the sampling cylinder increases, causing the air inside the sampling cylinder to be extracted. During this process, the air pressure inside the sampling cylinder gradually decreases, forming a pressure difference with the external atmospheric pressure. As the rubber block continues to be pulled, the pressure inside the sampling cylinder further decreases until a negative pressure is formed relative to the external environment. Since a negative pressure is formed inside the sampling cylinder, the atmospheric pressure of the liquid outside remains unchanged. This pressure difference will drive the liquid to move into the sampling cylinder. Then the sample is led out through the leading-out piece, which is usually a control valve. However, during the process of extracting the water sample, the water flow contains certain impurities. When these impurities enter the inside of the sampling cylinder, the presence of impurities in the sampled sample causes difficulties in subsequent processing and analysis steps, affecting the overall measurement results.

[0004] Therefore, it is necessary to provide a new sampler with filtering function to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0005] To solve the above technical problems, the utility model provides a sampler with filtering function.

[0006] The sampler with filtering function provided by the utility model comprises a sampling main body and a filtering device arranged below the sampling main body.

[0007] The filtering device comprises a fixing assembly, a filter screen and clamping assemblies, the upper end of the fixing assembly is detachably connected with the bottom end of the sampling main body, the bottom end of the fixing assembly is provided as a water inlet, the clamping assemblies are provided in pairs, the clamping assemblies are respectively arranged on opposite sides of the filter screen, the clamping assemblies are respectively arranged on opposite sides of the fixing assembly, two fixed plates are fixedly arranged on opposite sides of the filter screen, the filter screen is connected with the clamping assemblies through the two fixed plates, and the bottom end of the filter screen close to the water inlet is provided in an arc shape.

[0008] Preferably, the clamping assembly comprises two limiting blocks and two springs, the fixing assembly is provided with two opposite movable grooves, the opposite ends of the two limiting blocks are movably extended into the two movable grooves, one end of each of the two limiting blocks is fixedly connected with one end of the two springs, the one end of each of the two limiting blocks relative to the two springs is provided in an arc shape, and the bottom end of each of the two limiting blocks is movably connected with the fixed plate.

[0009] Preferably, the fixing assembly comprises a fixing seat and a fixing ring, the bottom end of the fixing seat is provided with a water inlet, the upper end of the fixing seat is fixedly connected with the bottom end of the fixing ring, the fixing ring and the bottom end of the sampling main body are both provided with threads, and the threads on the fixing ring are matched with the threads provided on the bottom end of the sampling main body.

[0010] Preferably, the sampling main body comprises a sampling cylinder, a movable rod, a rubber block and a leading-out piece, one end of the movable rod is fixedly connected with a pressing rod, the end of the movable rod away from the pressing rod is movably extended into the inside of the sampling cylinder, the inside upper end of the sampling cylinder is fixedly connected with a sealing block, the end of the movable rod close to the sampling cylinder is fixedly connected with the upper end of the rubber block, the outer side wall of the rubber block is matched with the inner side wall of the sampling cylinder, and the leading-out piece is arranged on one side of the sampling cylinder.

[0011] Preferably, the fixing seat is provided in a circular table shape.

[0012] Preferably, the leading-out piece comprises a water inlet pipe, a control valve and a water outlet pipe, one end of the water inlet pipe is communicated with the sampling cylinder, the end of the water inlet pipe away from the sampling cylinder is fixedly connected with the control valve, and the end of the control valve away from the water inlet pipe is fixedly connected with one end of the water outlet pipe.

[0013] Preferably, the end of the filter screen away from the water inlet is fixedly provided with a pulling handle.

[0014] Compared with the related art, the sampler with the filtering function has the following beneficial effects:

[0015] The device takes water flow sample through the sampling body in use, in the process, the water flow sample will pass through the filter screen, the water flow sample is filtered through the filter screen, so that the overall quality of the taken sample is improved, and the bottom of the filter screen is arc-shaped, the arc-shaped design can guide the water flow sample to pass through the filter screen more smoothly, reduce the friction and impact between the water flow and the filter screen, thereby reducing the water flow resistance, which helps to maintain the smoothness of the water flow, improves the filtering efficiency of the filter screen, and the arc-shaped design can increase the contact area between the filter screen and the water flow to some extent, thereby increasing the filtering area. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The whole structure schematic diagram of the sampler with filtering function is provided for the utility model;

[0017] Figure 2 The sectional view of the sampling cylinder is provided for the utility model;

[0018] Figure 3 The partial exploded view of the sampler with filtering function is provided for the utility model;

[0019] Figure 4 The exploded view of the filtering device is provided for the utility model;

[0020] Figure 5 The bottom view of the filter screen is provided for the utility model;

[0021] Figure 6 The sectional view of the fixing seat is provided for the utility model.

[0022] Reference signs in the drawings: 1, sampling cylinder; 2, control valve; 3, fixing seat; 4, movable rod; 5, pressing rod; 6, sealing block; 7, rubber block; 8, fixing ring; 9, pulling handle; 10, filter screen; 11, limiting block; 12, fixing plate; 13, spring; 14, water inlet pipe; 15, water outlet pipe. DETAILED DESCRIPTION

[0023] The utility model will be further described below in combination with the drawings and embodiments.

[0024] Please refer to Figures 1-6 Among them, Figure 1 The whole structure schematic diagram of the sampler with filtering function is provided for the utility model; Figure 2 The sectional view of the sampling cylinder is provided for the utility model; Figure 3 The partial exploded view of the sampler with filtering function is provided for the utility model; Figure 4 The exploded view of the filtering device is provided for the utility model; Figure 5The utility model provides a filter screen's plan view is provided for the utility model, Figure 6 The utility model provides a sectional view of fixed seat.

[0025] In the specific implementation process, as Figures 1-6 Indicated, the sampler with filtering function includes sampling main part and sets up filter device under sampling main part,

[0026] Filter device includes fixed assembly, filter screen 10 and clamping assembly, the upper end of fixed assembly is detachably connected with the bottom end of sampling main part, the bottom end of fixed assembly is arranged as water inlet, clamping assembly is provided with two, two clamping assemblies are arranged at the opposite sides of filter screen 10 respectively, two clamping assemblies are arranged at the opposite sides of fixed assembly respectively, two fixed plates 12 are also fixedly arranged at the opposite sides of filter screen 10, filter screen 10 is connected with two clamping assemblies through two fixed plates 12, the bottom end of filter screen 10 close to water inlet is arranged as arc, one end of filter screen 10 away from water inlet is fixedly provided with pull handle 9, and the pull plate makes the disassembly and replacement of filter screen 10 more convenient,

[0027] Clamping assembly includes two limit blocks 11 and two springs 13, two opposite movable grooves are arranged on fixed assembly, the opposite ends of two limit blocks 11 are respectively movably extended into two movable grooves, one end of two limit blocks 11 close to two movable grooves is fixedly connected with one end of two springs 13, one end of two limit blocks 11 relative to two springs 13 is arranged as arc, the bottom end of two limit blocks 11 is movably connected with fixed plate 12, by being provided with fixed plate 12 at the opposite sides of filter screen 10, when needing to clean filter screen 10, limit block 11 can be moved to the inside of fixed seat 3 first, then filter screen 10 can be separated from fixed seat 3, so that filter screen 10 can be conveniently cleaned, and filter screen 10 is installed directly by conveying fixed plate 12 to the direction of limit block 11, limit block 11 is moved to the inside of fixed seat 3 by extruding fixed plate 12, until fixed plate 12 passes through limit block 11 completely, the installation of filter screen 10 can be realized,

[0028] Fixed assembly includes fixed seat 3 and fixed ring 8, the bottom end of fixed seat 3 is provided with water inlet, the upper end of fixed seat 3 is fixedly connected with the bottom end of fixed ring 8, the bottom end of fixed ring 8 and the bottom end of sampling main part are provided with threads, and the threads on fixed ring 8 are matched with the threads arranged at the bottom end of sampling main part, and fixed seat 3 is arranged as circular truncated cone.

[0029] The sampling main body comprises a sampling cylinder 1, a movable rod 4, a rubber block 7 and a leading-out piece, one end of the movable rod 4 is fixedly connected with a pressing rod 5, the end of the movable rod 4 away from the pressing rod 5 movably extends to the inside of the sampling cylinder 1, the inside upper end of the sampling cylinder 1 is fixedly connected with a sealing block 6, the end of the movable rod 4 close to the sampling cylinder 1 is fixedly connected with the upper end of the rubber block 7, the outer side wall of the rubber block 7 is in close contact with the inner side wall of the sampling cylinder 1, and the leading-out piece is arranged on one side of the sampling cylinder 1.

[0030] The leading-out piece comprises a water inlet pipe 14, a control valve 2 and a water outlet pipe 15, one end of the water inlet pipe 14 is communicated with the sampling cylinder 1, the end of the water inlet pipe 14 away from the sampling cylinder 1 is fixedly connected with the control valve 2, and the end of the control valve 2 away from the water inlet pipe 14 is fixedly connected with one end of the water outlet pipe 15.

[0031] The working principle of the device is as follows: during use, the movable rod 4 is pulled upwards to drive the rubber block 7 to move, so that the water flow sample is extracted, and in the process, the water flow sample passes through the filter screen 10, so that the extracted water flow sample is filtered, and the overall quality of the sample is improved.

[0032] The fixed plate 12 is arranged on the opposite side of the filter screen 10, so that when the filter screen 10 needs to be cleaned, the limiting block 11 can be first moved towards the inside of the fixed seat 3, and then the filter screen 10 can be separated from the fixed seat 3, so that the filter screen 10 can be conveniently cleaned, and the installation of the filter screen 10 is directly sent to the direction of the limiting block 11, the limiting block 11 is pressed towards the inside of the fixed seat 3 through the fixed plate 12, until the fixed plate 12 completely passes through the limiting block 11, and the installation of the filter screen 10 is realized.

[0033] The circuit and the control involved in the utility model are prior art, and will not be described in detail here.

[0034] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A sampler with filtering function, characterized in that, The sampling body and the filtering device arranged below the sampling body are comprised; The filtering device comprises a fixed assembly, a filter screen (10) and clamping assemblies, the upper end of the fixed assembly is detachably connected with the bottom end of the sampling body, the bottom end of the fixed assembly is arranged as a water inlet, the clamping assemblies are arranged on opposite sides of the filter screen (10), the filter screen (10) is connected with the clamping assemblies through the two fixed plates (12), and the bottom end of the filter screen (10) close to the water inlet is arranged in an arc shape.

2. The sampler with filtering function according to claim 1, characterized in that, The clamping assemblies comprise two limiting blocks (11) and two springs (13), the fixed assembly is provided with two opposite movable grooves, the opposite ends of the two limiting blocks (11) are movably extended into the two movable grooves, one end of each of the two limiting blocks (11) close to the two movable grooves is fixedly connected with one end of the two springs (13), one end of each of the two limiting blocks (11) is arranged in an arc shape relative to one end of the two springs (13), and the bottom end of each of the two limiting blocks (11) is movably connected with the fixed plate (12).

3. The sampler with filtering function according to claim 2, characterized in that, The fixed assembly comprises a fixed seat (3) and a fixed ring (8), the bottom end of the fixed seat (3) is arranged as a water inlet, the upper end of the fixed seat (3) is fixedly connected with the bottom end of the fixed ring (8), the fixed ring (8) and the bottom end of the sampling body are both provided with threads, and the threads on the fixed ring (8) are matched with the threads arranged at the bottom end of the sampling body.

4. The sampler with filtering function according to claim 3, characterized in that, The sampling body comprises a sampling cylinder (1), a movable rod (4), a rubber block (7) and a leading-out piece, one end of the movable rod (4) is fixedly connected with a pressing rod (5), the end of the movable rod (4) away from the pressing rod (5) movably extends into the inside of the sampling cylinder (1), the inside upper end of the sampling cylinder (1) is fixedly connected with a sealing block (6), the end of the movable rod (4) close to the sampling cylinder (1) is fixedly connected with the upper end of the rubber block (7), the outer side wall of the rubber block (7) is matched with the inner side wall of the sampling cylinder (1), and the leading-out piece is arranged on one side of the sampling cylinder (1).

5. The sampler with filtering function according to claim 4, characterized in that, The fixed seat (3) is arranged in a circular table shape.

6. The sampler with filtering function according to claim 5, characterized in that, The leading-out piece comprises a water inlet pipe (14), a control valve (2) and a water outlet pipe (15), one end of the water inlet pipe (14) is communicated with the sampling cylinder (1), the end of the water inlet pipe (14) away from the sampling cylinder (1) is fixedly connected with the control valve (2), and the end of the control valve (2) away from the water inlet pipe (14) is fixedly connected with one end of the water outlet pipe (15).

7. The sampler with filtering function according to claim 6, characterized in that, The end of the filter screen (10) away from the water inlet is fixedly provided with a pulling handle (9).

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