Efficient liquid sample filtering device

Abstract

The utility model relates to the technical field of filtering devices, and discloses an efficient liquid sample filtering device which comprises an injector, a cylinder body, a lower connecting block, a collecting bottle and an inclined block, an upper connecting block is arranged on the upper end face of the lower connecting block in a threaded mode, and a first filter screen is arranged on the inner bottom face of the lower connecting block in a sliding and sleeved mode. A first pressing ring is arranged on the upper end face of the first filter screen, a second filter screen is arranged on the upper end face of the first pressing ring, a second pressing ring is arranged on the upper end face of the second filter screen, a vertical pipe is fixedly arranged at the position, close to the middle, of the lower end face of the barrel, and a pressing block is slidably arranged on the inner wall of the upper connecting block. According to the utility model, the injector is pushed to push the piston block in the cylinder cover, the piston block is pushed by gas to press downwards, the piston presses the sample, the sample is pressed into the connecting block, the sample is filtered by the filter screen, and the filtered sample enters the collecting bottle, so that the filtered sample is more convenient to collect.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a high-efficiency liquid sample filtering device. Background Art

[0002] Samples such as blood, urine, and saliva may contain tiny impurities, which need to be filtered using a filter. A liquid sample filter is a device used to filter and separate liquid samples. Its main purpose is to remove solid particles or impurities in the sample to obtain a pure liquid sample. When selecting a liquid sample filter, the properties of the sample must be considered.

[0003] Most existing filtering devices are composed of components such as a filter, a filter core, a filter cup, an inlet, and an outlet, and have a complex structure and are not convenient to use. In addition, the filter core is fixed inside the filter, which is not convenient to disassemble and replace. Therefore, the utility model provides a high-efficiency liquid sample filtering device to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to solve the shortcomings existing in the prior art and proposes a high-efficiency liquid sample filtering device. The cylinder cover is rotated to put the sample into the cylinder body, the cylinder cover is re-covered, and then the syringe is inserted into the pipeline, and the syringe is pushed to push the piston block inside the cylinder cover. The piston block is pushed downward by the gas, so that the piston presses the sample, and the sample is pressed into the connection block. The sample is filtered through the filter screen, and the filtered sample enters the collection bottle, making it more convenient to collect the filtered sample.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency liquid sample filtering device, comprising a syringe, a barrel, a lower connecting block, a collecting bottle and an inclined block, wherein the upper end surface of the lower connecting block is threadedly provided with an upper connecting block, a first filter screen is slidingly sleeved on the inner bottom surface of the lower connecting block, a first clamping ring is provided on the upper end surface of the first filter screen, a second filter screen is provided on the upper end surface of the first clamping ring, and a second clamping ring is provided on the upper end surface of the second filter screen;

[0006] A vertical pipe is fixedly arranged at the middle position of the lower end surface of the cylinder, a pressure block is slidably arranged on the inner wall of the upper connecting block, a rubber ring is fixedly arranged on the lower end surface of the pressure block, a cylinder cover is threadedly sleeved on the upper end surface of the cylinder, a pipeline is embedded in the middle position of the upper end surface of the cylinder cover, and a piston block is slidably sleeved on the inner wall of the cylinder cover;

[0007] Through the above technical solution, the cylinder cover is turned to put the sample into the cylinder body, the cylinder cover is replaced, and then the syringe is inserted into the pipe, and the syringe is pushed to push the piston block inside the cylinder cover. The piston block is pushed downward by the gas, allowing the piston to press the sample, and the sample is pressed into the connecting block. The sample is filtered through the filter, and the filtered sample enters the collection bottle, making it more convenient to collect the filtered sample.

[0008] Furthermore, a second soft block is embedded in the lower end surface of the lower connecting block, and the collecting bottle is inserted into the inner wall of the second soft block;

[0009] Through the above technical solution, a second soft block is arranged inside the lower connecting block, the collecting bottle is inserted into the second soft block, and the soft second soft block is attached to the outer end surface of the collecting bottle, making the connection between the lower connecting block and the collecting bottle more convenient and tight.

[0010] Furthermore, a first soft block is embedded in the upper end surface of the upper connecting block, and the vertical pipe is embedded in the inner wall of the first soft block;

[0011] Through the above technical solution, a first soft block is arranged on the upper connecting block, and the vertical pipe of the cylinder is inserted into the first soft block, so that the connection between the upper connecting block and the vertical pipe is tighter.

[0012] Furthermore, a discharge hole is provided at a middle position on the inner bottom surface of the lower connecting block, and the inclined block is fixedly arranged at an upper position on the inner wall of the discharge hole;

[0013] Through the above technical solution, the filtered sample is guided by the inclined block inside the discharge hole into the collection bottle, making it more convenient to collect the sample.

[0014] Furthermore, the first clamping ring, the second filter screen and the second clamping ring are all slidably sleeved on the inner wall of the lower connecting block;

[0015] Through the above technical solution, the first clamping ring and the second clamping ring arranged inside the lower connecting block clamp the filter screen, making it more convenient to fix the filter screen.

[0016] Furthermore, the rubber ring is pressed on the upper end surface of the second clamping ring;

[0017] Through the above technical solution, the rubber ring is pressed on the second clamping ring, so that the second clamping ring is fixed more stably.

[0018] Furthermore, the piston block is slidably arranged on the inner wall of the cylinder, and the syringe outlet is arranged on the inner wall of one end of the pipeline;

[0019] Through the above technical solution, the syringe pushes air into the cylinder through the pipeline, the air pushes the piston block, and the piston block presses the sample inside the cylinder to filter the sample.

[0020] The utility model has the following beneficial effects:

[0021] 1. The utility model proposes a high-efficiency liquid sample filtering device. When using the filtering device, the cylinder cover is rotated to put the sample into the cylinder body, the syringe is inserted into the pipeline, and the syringe is pushed to put air into the cylinder body to push the piston block, so that the piston block presses the sample, and the pressed sample enters the connection block and is filtered by the filter. After the filtration is completed, the sample falls into the collection bottle, making the filtering device more convenient to use.

[0022] 2. The utility model proposes a high-efficiency liquid sample filtering device, in which a connecting block is arranged inside. The upper connecting block is rotated to first put the first filter screen into the lower connecting block, and then the first clamping ring is put into the lower connecting block, the second filter screen is put into the lower connecting block, the second clamping ring is put into the lower connecting block, and then the upper connecting block is rotated to clamp the second clamping ring with the rubber ring, so that the filter screen can be disassembled and replaced more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an axonometric schematic diagram of the utility model;

[0024] Figure 2 It is a front cross-sectional schematic diagram of the utility model;

[0025] Figure 3 It is an axonometric schematic diagram of the lower connecting block of the utility model;

[0026] Figure 4 For the utility model Figure 2 An enlarged schematic diagram of point A.

[0027] Legend:

[0028] 1. Syringe; 2. Pipe; 3. Cylinder cover; 4. Cylinder body; 5. First soft block; 6. Upper connecting block; 7. Lower connecting block; 8. Second soft block; 9. Collecting bottle; 10. Piston block; 11. Vertical pipe; 12. Rubber ring; 13. Discharge hole; 14. Oblique block; 15. First filter screen; 16. First clamping ring; 17. Second filter screen; 18. Second clamping ring; 19. Pressing block. DETAILED DESCRIPTION

[0029] 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. Example

[0030] Reference Figure 1-4 The utility model provides an embodiment: a high-efficiency liquid sample filtering device, comprising a syringe 1, a barrel 4, a lower connecting block 7, a collecting bottle 9 and an inclined block 14, the upper end surface of the lower connecting block 7 is threadedly provided with an upper connecting block 6, the inner bottom surface of the lower connecting block 7 is slidably sleeved with a first filter screen 15, the upper end surface of the first filter screen 15 is provided with a first clamping ring 16, the upper end surface of the first clamping ring 16 is provided with a second filter screen 17, and the upper end surface of the second filter screen 17 is provided with a second clamping ring 18;

[0031] The filter device is provided with a connecting block inside. The upper connecting block 6 is rotated to first put the first filter screen 15 into the lower connecting block 7, and then the first clamping ring 16 is put into the lower connecting block 7, the second filter screen 17 is put into the lower connecting block 7, the second clamping ring 18 is put into the lower connecting block 7, and then the upper connecting block 6 is rotated. The pressing block 19 carries the rubber ring 12 to clamp the second clamping ring 18, so that the filter device is more convenient to use.

[0032] A vertical pipe 11 is fixedly arranged at the middle position of the lower end surface of the cylinder body 4, a pressure block 19 is slidably arranged on the inner wall of the upper connecting block 6, a rubber ring 12 is fixedly arranged on the lower end surface of the pressure block 19, a cylinder cover 3 is threadedly sleeved on the upper end surface of the cylinder body 4, a pipe 2 is embedded in the middle position of the upper end surface of the cylinder cover 3, and a piston block 10 is slidably sleeved on the inner wall of the cylinder cover 3;

[0033] Turn the cylinder cover 3 to put the sample into the cylinder body 4, cover the cylinder cover 3 again, and then insert the syringe 1 into the pipe 2, push the syringe 1 to push the piston block 10 inside the cylinder cover 3, the piston block 10 is pushed downward by the gas, and the piston presses the sample, and the sample is pressed into the connection block. The sample is filtered through the filter, and the filtered sample enters the collection bottle 9, making it more convenient to collect the filtered sample.

[0034] The lower end surface of the lower connecting block 7 is embedded with a second soft block 8, the collecting bottle 9 is inserted into the inner wall of the second soft block 8, the upper end surface of the upper connecting block 6 is embedded with a first soft block 5, the vertical pipe 11 is embedded in the inner wall of the first soft block 5, a discharge hole 13 is opened in the middle of the inner bottom surface of the lower connecting block 7, and an inclined block 14 is fixedly arranged on the inner wall of the discharge hole 13 at the upper side;

[0035] A second soft block 8 is arranged inside the lower connecting block 7, and the collecting bottle 9 is inserted into the second soft block 8. The soft second soft block 8 is attached to the outer end surface of the collecting bottle 9, so that the connection between the lower connecting block 7 and the collecting bottle 9 is more convenient and tight. A first soft block 5 is arranged on the upper connecting block 6, and the vertical tube 11 of the cylinder 4 is inserted into the first soft block 5, so that the connection between the upper connecting block 6 and the vertical tube 11 is tighter. The filtered sample is guided into the collecting bottle 9 by the inclined block 14 inside the discharge hole 13, so that the sample collection is more convenient.

[0036] The first clamping ring 16, the second filter screen 17 and the second clamping ring 18 are all slidably sleeved on the inner wall of the lower connecting block 7, the rubber ring 12 is pressed on the upper end surface of the second clamping ring 18, the piston block 10 is slidably arranged on the inner wall of the cylinder 4, and the output port of the syringe 1 is arranged on the inner wall of one end of the pipe 2;

[0037] The first clamping ring 16 and the second clamping ring 18 arranged inside the lower connecting block 7 press the filter screen, making it easier to fix the filter screen. The rubber ring 12 is pressed on the second clamping ring 18, making the second clamping ring 18 more stably fixed. The syringe 1 pushes air into the cylinder 4 through the pipe 2. The air pushes the piston block 10. The piston block 10 presses the sample inside the cylinder 4 to filter the sample.

[0038] Working principle: rotate the upper connecting block 6, put the first filter 15, the first clamping ring 16, the second filter 17 and the second clamping ring 18 into the lower connecting block 7 in sequence, put the clamping block 19 into the upper connecting block 6, close the upper connecting block 6 again, insert the vertical tube 11 into the first soft block 5, insert the collecting bottle 9 into the second soft block 8, rotate the cylinder cover 3 to put the sample into the cylinder body 4, turn the cylinder cover 3 again, insert the syringe 1 into one end of the pipe 2, push the syringe 1 to push the air into the cylinder body 4 through the pipe 2, the gas pushes the piston block 10, the piston block 10 presses toward the sample, the sample is pressed into the connecting block through the vertical tube 11, filtered by the first filter 15 and the second filter 17, and the filtered sample enters the collecting bottle 9, making it more convenient to collect the sample.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency liquid sample filtering device, comprising a syringe (1), a barrel (4), a lower connecting block (7), a collecting bottle (9) and an inclined block (14), characterized in that: The upper end surface of the lower connecting block (7) is threadedly provided with an upper connecting block (6), the inner bottom surface of the lower connecting block (7) is slidably sleeved with a first filter screen (15), the upper end surface of the first filter screen (15) is provided with a first clamping ring (16), the upper end surface of the first clamping ring (16) is provided with a second filter screen (17), and the upper end surface of the second filter screen (17) is provided with a second clamping ring (18); A vertical pipe (11) is fixedly arranged at a middle position on the lower end surface of the cylinder (4); a pressure block (19) is slidably arranged on the inner wall of the upper connecting block (6); a rubber ring (12) is fixedly arranged on the lower end surface of the pressure block (19); a cylinder cover (3) is threadedly sleeved on the upper end surface of the cylinder (4); a pipeline (2) is embedded in the upper end surface of the cylinder cover (3) at a middle position; and a piston block (10) is slidably sleeved on the inner wall of the cylinder cover (3).

2. A high-efficiency liquid sample filtering device according to claim 1, characterized in that: A second soft block (8) is embedded in the lower end surface of the lower connecting block (7), and the collecting bottle (9) is inserted into the inner wall of the second soft block (8).

3. The high-efficiency liquid sample filtering device according to claim 1, characterized in that: The upper end surface of the upper connecting block (6) is embedded with a first soft block (5), and the vertical pipe (11) is embedded in the inner wall of the first soft block (5).

4. The high-efficiency liquid sample filtering device according to claim 1, characterized in that: A discharge hole (13) is provided at a middle position on the inner bottom surface of the lower connecting block (7), and the inclined block (14) is fixedly arranged at an upper position on the inner wall of the discharge hole (13).

5. The high-efficiency liquid sample filtering device according to claim 1, characterized in that: The first clamping ring (16), the second filter screen (17) and the second clamping ring (18) are all slidably mounted on the inner wall of the lower connecting block (7).

6. The high-efficiency liquid sample filtering device according to claim 1, characterized in that: The rubber ring (12) is pressed against the upper end surface of the second clamping ring (18).

7. The high-efficiency liquid sample filtering device according to claim 1, characterized in that: The piston block (10) is slidably arranged on the inner wall of the cylinder (4), and the output port of the syringe (1) is arranged on the inner wall of one end of the pipe (2).

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