A sample impurity filtration device

Abstract

This utility model belongs to the field of impurity detection and filtration technology, specifically a sample impurity filtration device, including a filter box. A liquid injection pipe is fixedly connected to the inner wall of the filter box; a collection box is fixedly connected to the bottom of the inner side of the filter box; a support base is fixedly connected to the inner wall of the filter box; a spring telescopic rod is fixedly connected to the bottom of the support base; a top plate is fixedly connected to the bottom of the spring telescopic rod; a first connecting rod is fixedly connected to the end of the spring telescopic rod; a rotating shaft is provided inside the first connecting rod; and a fixing buckle is provided outside the rotating shaft. By adding the fixing buckle, the filter cartridge can be quickly disassembled after filtration of the sample, and then quickly reassembled, reducing the complexity of frequent filter cartridge installation and disassembly. Simultaneously, the addition of a first filter screen and a second filter screen further filters the sample, reducing the amount of residual dust and impurities inside the sample, and improving the filtration speed of the sample before detection.

Description

Technical Field

[0001] This utility model relates to the field of impurity detection and filtration technology, specifically a sample impurity detection and filtration device. Background Technology

[0002] A sample is a representative item extracted from a batch of items to demonstrate its quality, characteristics, or for testing and analysis. Samples can be classified as liquid samples, soil samples, gas samples, solid samples, biological samples, etc. Sampling methods, preservation conditions, and testing techniques can be selected based on their characteristics.

[0003] Before testing water samples, there may be impurities inside them. These impurities may be due to naturally occurring minerals, organic matter, or pollutants in the soil or water, such as heavy metals in the soil or suspended particulate matter in the river water. They may also be due to incomplete cleaning of the sampling tools or a reaction between the container material and the sample. Therefore, it is necessary to filter and clean the impurities inside the sample before testing.

[0004] Existing sample impurity filtration devices require disassembly after filtering liquid samples. Disassembly is easily affected by factors such as liquid residue, parts jamming, or space constraints, resulting in a time-consuming and labor-intensive process that affects the speed of subsequent sample filtration.

[0005] Therefore, a sample impurity filtering device is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A sample impurity filtration device according to this utility model includes a filter box, a liquid injection pipe fixedly connected to the inner wall of the filter box; a collection box fixedly connected to the bottom of the inner side of the filter box; a support base fixedly connected to the inner wall of the filter box; a spring telescopic rod fixedly connected to the bottom of the support base; a top plate fixedly connected to the bottom of the spring telescopic rod; a first connecting rod fixedly connected to the end of the spring telescopic rod; a rotating shaft provided inside the first connecting rod; a fixing buckle provided outside the rotating shaft; the fixing buckle is rotatably connected inside the rotating shaft; and a fixing buckle is fixedly connected to the bottom of the fixing buckle. A reset spring is included; a filter cylinder is externally mounted on the fixing buckle; a connecting buckle is fixedly connected to the side wall of the filter cylinder; a liquid outlet funnel is fixedly connected to the bottom of the filter cylinder; a first filter screen is installed inside the filter cylinder; a second filter screen is installed inside the filter cylinder. By adding the fixing buckle, the filter cylinder can be quickly disassembled after filtering the sample, and can be quickly reinstalled after disassembly, reducing the complexity of frequent filter cylinder installation and disassembly. At the same time, adding the first and second filter screens can filter the sample, reduce the situation of residual dust and impurities inside the sample, and improve the filtration speed of the sample before detection.

[0008] Preferably, the filter box has an internal interlayer; a disc is disposed inside the interlayer; the disc is rotatably connected inside the interlayer; the disc is porous; a rotating handle is fixedly connected to the top of the disc; a limiting plate is fixedly connected to the inner side wall of the filter box; a contact plate is fixedly connected to the bottom of the disc; by adding the contact plate, the amount of sample injected into the injection tube can be controlled before filtration. When a large amount of sample needs to be injected, the disc can be rotated to a larger aperture to align with the injection tube, further improving the filtration speed of the sample and reducing the inconvenience of aligning with the injection tube when injecting a large amount of sample.

[0009] Preferably, a micro diaphragm pump is fixedly connected to the side wall of the filter box; a connecting pipe is fixedly connected to the end of the micro diaphragm pump; a sleeve is fixedly connected to the end of the connecting pipe; the sleeve and the outlet funnel are correspondingly arranged; by adding the sleeve, the sample remaining on the inner wall of the outlet funnel can be removed, reducing the long-term residue of the sample on the inner wall of the outlet funnel, which may lead to corrosion of the inner wall of the outlet funnel. At the same time, adding the micro diaphragm pump can reduce the waste caused by the sample adsorbing onto the inner wall of the outlet funnel.

[0010] Preferably, a pair of support plates are fixedly connected to the top of the collection box; a round rod is fixedly connected to the middle of the pair of support plates; a float is fixedly connected inside the round rod; by adding the float, the amount of sample can be clearly observed, reducing the situation where too much sample is put into the collection box and overflows, and reducing the waste caused by sample overflowing to the outside.

[0011] Preferably, a rubber pad is fixed to the top of the injection tube; the rubber pad and the injection tube are correspondingly arranged; by adding the rubber pad, the situation where the sample flows out of the injection tube during the injection process can be reduced, which further improves the quantity integrity of the sample before filtration.

[0012] Preferably, an observation window is fixed to the outer wall of the filter box; the observation window and the filter box are correspondingly set; by adding an observation window, the filtration situation inside the filter box can be observed from the outside of the filter box, and the drifting state of the float can be carefully observed, so as to control the amount of sample filtered.

[0013] The advantages of this utility model are:

[0014] 1. The sample impurity filtering device of this utility model can be quickly disassembled after the filter cylinder has finished filtering the sample by adding a fixing buckle. After disassembly, it can be quickly installed, reducing the complexity of frequent installation and disassembly of the filter cylinder. At the same time, the addition of a first filter screen and a second filter screen can filter the sample, reduce the situation of residual dust and impurities inside the sample, and improve the filtration speed of the sample before detection.

[0015] 2. The sample impurity filtration device of this utility model, by adding a contact plate, allows the contact plate to control the amount of sample injected into the injection tube before filtration. When a large amount of sample needs to be injected, the disc can be rotated to a larger aperture to align with the injection tube, which further improves the filtration speed of the sample and reduces the inconvenience of aligning with the injection tube when injecting a large amount of sample. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main body of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the miniature diaphragm pump in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the disc in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the float in this utility model;

[0021] Figure 5This is a schematic diagram of the structure of the fixing buckle in this utility model.

[0022] In the diagram: 1. Filter box; 11. Injection pipe; 12. Filter cylinder; 13. Discharge funnel; 14. Collection box; 15. First filter screen; 16. Second filter screen; 17. Support base; 18. Spring telescopic rod; 19. Top plate; 101. First connecting rod; 102. Return spring; 103. Connecting buckle; 104. Rotating shaft; 105. Fixing buckle; 2. Contact plate; 21. Interlayer; 22. Disc; 23. Rotating handle; 24. Limiting plate; 3. Sleeve; 31. Miniature diaphragm pump; 32. Connecting pipe; 4. Float; 41. Support plate; 42. Round rod; 5. Rubber pad; 6. Observation window. 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 scope of protection of the present utility model.

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 5As shown in the embodiment of this utility model, a sample impurity filtration device includes a filter box 1, with a liquid injection pipe 11 fixedly connected to the inner wall of the filter box 1; a collection box 14 fixedly connected to the bottom of the inner side of the filter box 1; a support base 17 fixedly connected to the inner wall of the filter box 1; a spring telescopic rod 18 fixedly connected to the bottom of the support base 17; a top plate 19 fixedly connected to the bottom of the spring telescopic rod 18; a first connecting rod 101 fixedly connected to the end of the spring telescopic rod 18; a rotating shaft 104 disposed inside the first connecting rod 101; a fixing buckle 105 disposed outside the rotating shaft 104; the fixing buckle 105 being rotatably connected inside the rotating shaft 104; and a return spring 102 fixedly connected to the bottom of the fixing buckle 105. A filter cylinder 12 is provided outside the fixing buckle 105; a connecting buckle 103 is fixedly connected to the side wall of the filter cylinder 12; a liquid outlet funnel 13 is fixedly connected to the bottom of the filter cylinder 12; a first filter screen 15 is provided inside the filter cylinder 12; a second filter screen 16 is provided inside the filter cylinder 12; when the sample is placed into the injection tube 11, the sample will flow inside the injection tube 11. At this time, the connecting buckle 103 at the end of the filter cylinder 12 can be inserted into the outside of the fixing buckle 105. When the connecting buckle 103 and the fixing buckle 105 come into contact, the return spring 102 will buffer the contact. After the connecting buckle 103 is inserted into the fixing buckle 105, the connecting buckle 103 will engage. After the sample flows into the filter cartridge 12 through the injection tube 11 into the support base 17, it will first come into contact with the surface of the first filter screen 15. The first filter screen 15 will then filter the dust and impurities on the sample surface. The sample will then pass through the openings on the first filter screen 15 and then through the second filter screen 16, which will perform a second filtration. Finally, the filtered sample will flow into the collection box 14 through the outlet funnel 13. When it is necessary to disassemble the filter cartridge 12, the top plate 19 can be pressed. The spring telescopic rod 18 at the top of the top plate 19 will then extend and retract. The spring telescopic rod 18 will then drive the first connecting rod 101 to move upward. When the connecting rod 101 is displaced, it will rotate outside the rotating shaft 104. Subsequently, the return spring 102 at the bottom of the fixing buckle 105 will be compressed. After compression, the fixing buckle 105 will disengage from the fixing state of the connecting buckle 103. At this time, the filter cartridge 12 can be pulled out, completing the quick installation and quick removal of the filter cartridge 12. By adding the fixing buckle 105, the filter cartridge 12 can be quickly disassembled after filtering the sample. After disassembly, it can be quickly installed, reducing the complexity of frequent installation and disassembly of the filter cartridge 12. At the same time, adding the first filter screen 15 and the second filter screen 16 can filter the sample, reduce the situation of residual dust and impurities inside the sample, and improve the filtration speed of the sample before detection.

[0026] like Figures 1 to 5As shown, the filter box 1 has an internal interlayer 21; a disc 22 is disposed inside the interlayer 21; the disc 22 is rotatably connected inside the interlayer 21; the disc 22 is porous; a rotating handle 23 is fixedly connected to the top of the disc 22; a limiting plate 24 is fixedly connected to the inner wall of the filter box 1; a contact plate 24 is fixedly connected to the bottom of the disc 22; when different amounts of sample need to be injected into the injection tube 11, the disc 22 can be rotated by rotating the handle 23, and then the disc 22 will rotate inside the interlayer 21. When the disc 22 rotates, the contact plate 24 at the bottom of the disc 22... The contact plate 2 will also be driven to rotate. After rotating the contact plate 2 until it touches the limit plate 24, stop rotating the handle 23. At this time, the hole on the disc 22 can be adjusted to align with the injection tube 11 for sample injection by rotating the handle 23. By adding the contact plate 2, the amount of sample injected into the injection tube 11 can be controlled before filtration. When a large amount of sample needs to be injected, the disc 22 can be rotated to a larger aperture to align with the injection tube 11, which further improves the filtration speed of the sample and reduces the inconvenience of aligning with the injection tube 11 when injecting a large amount of sample.

[0027] like Figures 1 to 3 As shown, a micro diaphragm pump 31 is fixedly connected to the side wall of the filter box 1; a connecting pipe 32 is fixedly connected to the end of the micro diaphragm pump 31; a sleeve 3 is fixedly connected to the end of the connecting pipe 32; the sleeve 3 and the outlet funnel 13 are correspondingly arranged; after the sample is filtered through the filter tube 12 and enters the collection box 14, the sample solution will remain on the inner wall of the outlet funnel 13. At this time, the micro diaphragm pump 31 can be started, and then the sleeve 3 is inserted into the outside of the outlet funnel 13. The micro diaphragm pump 31 will extract the sample remaining on the inner wall of the outlet funnel 13; by adding the sleeve 3, the sample remaining on the inner wall of the outlet funnel 13 can be removed, reducing the sample remaining on the inner wall of the outlet funnel 13 for a long time, which may cause corrosion of the inner wall of the outlet funnel 13. At the same time, adding the micro diaphragm pump 31 can reduce the waste caused by the sample adsorbing onto the inner wall of the outlet funnel 13.

[0028] like Figure 4 As shown, a pair of support plates 41 are fixedly connected to the top of the collection box 14; a round rod 42 is fixedly connected to the middle of the pair of support plates 41; a float 4 is fixedly connected inside the round rod 42; when a sample is loaded into the collection box 14, the float 4 will rise as the amount of sample is loaded. At this time, the amount of sample can be judged by observing the position of the float 4; by increasing the float 4, the amount of sample can be clearly observed, reducing the situation where too much sample is loaded into the collection box 14 and overflowing, and reducing the waste caused by the sample overflowing to the outside.

[0029] like Figure 2As shown, a rubber pad 5 is fixed to the top of the injection tube 11; the rubber pad 5 and the injection tube 11 are correspondingly arranged; when the sample is injected through the injection tube 11, the rubber pad 5 will protect the top edge of the injection tube 11 and fill the gaps in the injection tube 11; by adding the rubber pad 5, the situation where the sample flows out of the injection tube 11 during the injection process can be reduced, further improving the quantity integrity of the sample before filtration.

[0030] like Figure 1 As shown, an observation window 6 is fixed to the outer wall of the filter box 1; the observation window 6 and the filter box 1 are correspondingly set; when the sample is filtered and processed inside the filter box 1, and when it enters the collection box 14 for collection after the subsequent filtration is completed, the inside of the filter box 1 can be observed through the observation window 6; by adding the observation window 6, the filtration situation inside the filter box 1 can be observed from the outside of the filter box 1, and the falling state of the float 4 can be carefully observed, so as to control the amount of sample filtered.

[0031] Working principle: The sample is placed into the injection tube 11, where it flows. At this time, the connecting clip 103 at the end of the filter cartridge 12 is inserted into the fixing clip 105. When the connecting clip 103 and the fixing clip 105 contact, the return spring 102 provides cushioning. After the connecting clip 103 is inserted into the fixing clip 105, it engages with the support base 17. After the sample flows into the filter cartridge 12 through the injection tube 11, it first contacts the surface of the first filter screen 15. The first filter screen 15 then filters out dust and impurities from the sample surface. The sample passes through the opening on filter 15 and then through the second filter screen 16. The second filter screen 16 performs secondary filtration on the sample. Finally, the filtered sample flows into the collection box 14 through the outlet funnel 13. When it is necessary to disassemble the filter cylinder 12, the top plate 19 can be pressed. Then, the spring telescopic rod 18 at the top of the top plate 19 will be extended or retracted. Then, the spring telescopic rod 18 will drive the first connecting rod 101 to move upward. When the first connecting rod 101 moves, it will rotate outside the rotating shaft 104. Then, the return spring 102 at the bottom of the fixing buckle 105 will be compressed. After compression, the fixing buckle 105 will be released from the state of fixing the connecting buckle 103. At this time, it can be... The filter cartridge 12 is pulled out, completing the quick installation and removal of the filter cartridge 12. When different amounts of sample need to be injected into the injection tube 11, the disc 22 can be rotated by turning the handle 23. The disc 22 will then rotate inside the interlayer 21. When the disc 22 rotates, the contact plate 2 at the bottom of the disc 22 will also be rotated. After the contact plate 2 is rotated to touch the limit plate 24, stop turning the handle 23. At this time, the hole on the disc 22 can be aligned with the injection tube 11 by turning the handle 23 to inject the sample. After the sample is filtered through the filter cartridge 12 and enters the collection box 14, sample solution will remain on the inner wall of the outlet funnel 13. At this point, the micro diaphragm pump 31 can be started, and then the sleeve 3 is inserted into the outside of the outlet funnel 13. The micro diaphragm pump 31 will extract the sample remaining on the inner wall of the outlet funnel 13. After the sample is loaded into the collection box 14, the float 4 will rise as the amount of sample is loaded. At this time, the amount of sample can be judged by observing the position of the float 4. When the sample is injected through the injection tube 11, the rubber pad 5 will protect the top edge of the injection tube 11 and fill the gaps in the injection tube 11. When the sample is filtered and processed inside the filter box 1 and then collected inside the collection box 14 after the subsequent filtration is completed, the inside of the filter box 1 can be observed through the observation window 6.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A device for detecting impurities in a sample, comprising a filter box (1), characterized in that: A liquid injection pipe (11) is fixedly connected to the inner wall of the filter box (1); a collection box (14) is fixedly connected to the bottom of the inner side of the filter box (1); a support base (17) is fixedly connected to the inner wall of the filter box (1); a spring telescopic rod (18) is fixedly connected to the bottom of the support base (17); a top plate (19) is fixedly connected to the bottom of the spring telescopic rod (18); a first connecting rod (101) is fixedly connected to the end of the spring telescopic rod (18); a rotating shaft (104) is provided inside the first connecting rod (101); and a rotating shaft (104) is provided outside the rotating shaft (104). A fixing buckle (105) is rotatably connected inside the rotating shaft (104); a return spring (102) is fixedly connected to the bottom of the fixing buckle (105); a filter cylinder (12) is provided outside the fixing buckle (105); a connecting buckle (103) is fixedly connected to the side wall of the filter cylinder (12); a liquid outlet funnel (13) is fixedly connected to the bottom of the filter cylinder (12); a first filter screen (15) is provided inside the filter cylinder (12); a second filter screen (16) is provided inside the filter cylinder (12).

2. The device of claim 1, wherein: The filter box (1) has an internal interlayer (21); a disc (22) is provided inside the interlayer (21); the disc (22) is rotatably connected inside the interlayer (21); the disc (22) is multi-hole; a rotating handle (23) is fixed to the top of the disc (22); a limiting plate (24) is fixed to the inner side wall of the filter box (1); and a contact plate (2) is fixed to the bottom of the disc (22).

3. The device of claim 2, wherein: A micro diaphragm pump (31) is fixed to the side wall of the filter box (1); a connecting pipe (32) is fixed to the end of the micro diaphragm pump (31); a sleeve (3) is fixed to the end of the connecting pipe (32); the sleeve (3) and the liquid outlet funnel (13) are set accordingly.

4. The device of claim 3, wherein: The top of the collection box (14) is fixed with a pair of support plates (41); a round rod (42) is fixed in the middle of the pair of support plates (41); a float (4) is fixed inside the round rod (42).

5. The device of claim 4, wherein: A rubber pad (5) is fixed to the top of the injection tube (11); the rubber pad (5) and the injection tube (11) are arranged correspondingly.

6. The device of claim 5, wherein: The outer wall of the filter box (1) is fixed with an observation window (6); the observation window (6) and the filter box (1) are set accordingly.

Images