Water sample filtering device for environment detection experiment

Abstract

The utility model relates to the technical field of environment detection, and discloses an environment detection experiment water sample filtering device which is characterized in that an upper cover is arranged on the upper side of a sample collecting barrel, a fixing rod is fixedly mounted on the top surface of the inner side of the upper cover, a pressing sheet is fixedly mounted on one side, far away from the upper cover, of the fixing rod, and a filter screen is arranged below the pressing sheet; and a fixing cylinder is arranged below the filter screen, external threads are fixedly installed on the outer side of the fixing cylinder, and a filter piece is installed on the bottom face of the inner side of the fixing cylinder in a threaded mode. According to the water sample filtering device for the environment detection experiment, after a filter screen is clamped on the upper side of a fixed cylinder through a placement frame, the fixed cylinder is connected with a sample collecting barrel, after connection is completed, water needing to be filtered is poured into the fixed cylinder, large foreign matters in the water can be directly filtered by the filter screen, and the situation that the filtering efficiency is low due to blockage of a filter sheet is avoided; when a large amount of water liquid needs to be filtered, the sediment at the bottom of the filter screen may be large.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring technology, specifically a water sample filtration device for environmental monitoring experiments. Background Technology

[0002] During environmental monitoring, water samples need to be obtained and filtered to remove dead leaves and branches, so as to avoid interference with the water sample testing.

[0003] In existing filtration devices, filtration through a filter screen is a common method for filtering environmental test water samples. The environmental test water sample is slowly poured into a filter or funnel and allowed to pass through the filter screen. However, the environmental test water sample may contain a large number of suspended particles, silt and other impurities, which can easily accumulate rapidly on the surface of the filter screen, causing the filter screen to become clogged and affecting the filtration effect. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an environmental testing water sample filtration device to solve the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an environmental testing water sample filtration device, wherein a top cover is provided on the upper side of the sample collection tank, a fixing rod is fixedly installed on the inner top surface of the top cover, a pressure plate is fixedly installed on the side of the fixing rod away from the top cover, a filter screen is provided below the pressure plate, a fixing cylinder is provided below the filter screen, an external thread is fixedly installed on the outer side of the fixing cylinder, and a filter disc is threaded on the inner bottom surface of the fixing cylinder.

[0008] Preferably, the top inner side of the sample collection bucket is provided with an internal thread, and the sample collection bucket and the fixed cylinder are connected by the internal thread and the external thread.

[0009] Preferably, a fixing block is fixedly installed on the bottom surface of the filter sheet, a fixing plate is fixedly installed on the bottom surface of the fixing block, and a filter element is fixedly installed on the inner side of the filter sheet.

[0010] Preferably, the filter screen includes a placement rack, and the filter screen is fixedly installed on the bottom side of the placement rack.

[0011] Preferably, the filter element consists of two layers: a first layer is a chemical fiber filter layer, and a second layer is a metal mesh filter layer.

[0012] Preferably, the filter screen is made of stainless steel.

[0013] Compared with the prior art, this utility model provides a water sample filtration device for environmental testing experiments, which has the following beneficial effects:

[0014] 1. In this environmental testing water sample filtration device, after the filter screen is clamped to the upper side of the fixed cylinder by the placement frame, the fixed cylinder is connected to the sample collection bucket. After the connection is completed, the water to be filtered is poured into the fixed cylinder. Larger foreign objects in the water will be directly filtered by the filter screen, avoiding clogging of the filter plate and thus reducing the filtration efficiency. When there is a lot of water to be filtered, there may be a lot of sediment at the bottom of the filter screen. At this time, the top cover can be placed on the fixed cylinder. At this time, the pressure plate is inside the filter screen. After the top cover is placed on the fixed cylinder, pressing down the top cover can speed up the water filtration speed.

[0015] 2. After filtration, the filter screen of this environmental testing water sample filtration device can be removed for cleaning. When the filter needs to be replaced, the filter can be replaced by pinching the fixing plate and unscrewing it. After filtration, the water sample can be taken out from the sample collection bucket for testing after unscrewing the fixing cylinder. By controlling the tightness and density of the winding, the chemical fiber filter layer and the metal mesh filter layer can be made into filter cores of different precision, which can effectively remove suspended solids and particulate impurities in the water. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the upper cover structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the fixing rod structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the sample collection bucket structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the filter structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the filter structure of this utility model.

[0022] In the diagram: 1. Sample collection container; 101. Internal thread; 2. Top cover; 3. Fixing rod; 4. Pressing plate; 5. Fixing cylinder; 6. External thread; 7. Filter plate; 701. Fixing block; 702. Fixing plate; 703. Filter element; 8. Filter screen; 801. Placement rack; 802. Filter screen. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-4 As shown, this utility model provides a technical solution: an environmental testing experimental water sample filtration device, wherein a top cover 2 is provided on the upper side of the sample collection tank 1, a fixing rod 3 is fixedly installed on the inner top surface of the top cover 2, a pressure plate 4 is fixedly installed on the side of the fixing rod 3 away from the top cover 2, a filter screen 8 is provided below the pressure plate 4, a fixing cylinder 5 is provided below the filter screen 8, an external thread 6 is fixedly installed on the outer side of the fixing cylinder 5, and a filter disc 7 is threaded on the inner bottom surface of the fixing cylinder 5.

[0025] Furthermore, the inner top of the sample collection bucket 1 is provided with an internal thread 101, and the sample collection bucket 1 and the fixed cylinder 5 are threadedly connected by the internal thread 101 and the external thread 6.

[0026] After filtration is completed using the above technical solution, the water sample can be taken out for testing after unscrewing the fixed cylinder 5.

[0027] Furthermore, a fixing block 701 is fixedly installed on the bottom surface of the filter sheet 7, a fixing plate 702 is fixedly installed on the bottom surface of the fixing block 701, and a filter element 703 is fixedly installed on the inner side of the filter sheet 7.

[0028] Using the above technical solution, the water to be tested can have some basic impurities filtered out after passing through the filter.

[0029] Furthermore, the filter screen 8 includes a placement rack 801, on the bottom side of which the filter screen 802 is fixedly installed.

[0030] Through the above technical solution, some larger foreign objects will be directly filtered by filter screen 8, improving the filtration efficiency of filter element 7.

[0031] Furthermore, the filter element 703 is divided into two layers: the first layer is a chemical fiber filter layer, and the second layer is a metal mesh filter layer.

[0032] Through the above technical solutions, the chemical fiber filter layer can be made into filter elements of different precision by controlling the tightness and density of the winding, which can effectively remove suspended solids and particulate impurities in the water. The metal mesh filter element is woven from stainless steel wires and has the characteristics of low flow resistance and high temperature resistance. It usually uses metal mesh filter material with a size of 60-300 microns.

[0033] Furthermore, the filter screen 802 is made of stainless steel.

[0034] Through the above technical solutions, stainless steel has excellent rust-resistant properties, and using stainless steel for items that frequently come into contact with water can effectively extend their service life.

[0035] Working principle: After the filter screen 8 is clamped to the upper side of the fixed cylinder 5 by the placement bracket 801, the fixed cylinder 5 is connected to the sample collection bucket 1. After the connection is completed, the water to be filtered is poured into the fixed cylinder 5. Larger foreign objects in the water will be directly filtered by the filter screen 8, avoiding clogging of the filter plate 7 and thus reducing the filtration efficiency. When there is a lot of water to be filtered, there may be a lot of sediment at the bottom of the filter screen 8. At this time, the upper cover 2 can be covered to cover the fixed cylinder 5. At this time, the pressure plate 4 is inside the filter screen 8. After the upper cover 2 covers the fixed cylinder 5, press down the upper cover 2 to speed up the water filtration. After filtration is completed, the filter screen 8 can be removed for cleaning. When the filter plate 7 needs to be replaced, the filter plate 7 can be squeezed and unscrewed to replace it.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An environmental detection experimental water sample filtering device, comprising a sample collecting barrel (1), characterized in that: The upper side of the sample collecting barrel (1) is provided with an upper cover (2), the inner side top surface of the upper cover (2) is fixedly installed with a fixed rod (3), the side, away from the upper cover (2), of the fixed rod (3) is fixedly installed with a pressing plate (4), the lower side of the pressing plate (4) is provided with a filter screen (8), the lower side of the filter screen (8) is provided with a fixed cylinder (5), the outer side of the fixed cylinder (5) is fixedly installed with an external thread (6), and the inner side bottom surface of the fixed cylinder (5) is screwedly installed with a filter disc (7).

2. The environmental detection experimental water sample filtering device according to claim 1, characterized in that: The inner side top end of the sample collecting barrel (1) is provided with an inner thread (101), and the sample collecting barrel (1) and the fixed cylinder (5) are screwedly connected through the inner thread (101) and the external thread (6).

3. The environmental detection experimental water sample filtering device according to claim 1, characterized in that: The bottom surface of the filter disc (7) is fixedly installed with a fixed block (701), the bottom surface of the fixed block (701) is fixedly installed with a fixed plate (702), and the inner side of the filter disc (7) is fixedly installed with a filter core (703).

4. The environmental detection experimental water sample filtering device according to claim 1, characterized in that: The filter screen (8) comprises a placing rack (801), and the bottom side of the placing rack (801) is fixedly installed with a filter screen (802).

5. The environmental detection experimental water sample filtering device according to claim 3, characterized in that: The filter core (703) is divided into two layers, a first layer is a chemical fiber filter layer, and a second layer is a metal screen filter layer.

6. The environmental detection experimental water sample filtering device according to claim 4, characterized in that: The material of the filter screen (802) is stainless steel.

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