A filter tip with simple structure and high sample addition accuracy

Abstract

The utility model relates to the field of filter element pipette devices, and discloses a filter element pipette with a simple structure and high sampling accuracy, comprising a main body and a filter element, wherein the filter element is arranged inside the main body, the main body comprises a pipette, a first connecting tube is fixedly connected to the middle of the bottom end of the pipette, a second connecting tube is threadedly connected to the bottom end of the first connecting tube, the filter element comprises a shell, a filter screen is fixedly connected to the inner wall of the shell, a rotating shaft is fixedly connected to one side of the shell, a turntable is fixedly connected to the other end of the rotating shaft, a fixed plate is fixedly connected to the other side of the turntable, and the side wall of the rotating shaft is rotatably connected to the side wall of the pipette. In the utility model, a filter element pipette with a simple structure and high sampling accuracy is provided by setting a main body and utilizing multiple connecting tubes at the bottom end of the pipette, and by setting a filter element and utilizing a fixed plate to adjust the filter screen, sample filtering or direct sampling is achieved.

Description

Technical Field

[0001] The utility model relates to the field of filter element suction head devices, in particular to a filter element suction head with a simple structure and high sample addition accuracy. Background Art

[0002] The filter element separates solid particles in liquid or gas, or allows different material components to fully contact, speeding up the reaction time, and protecting the normal operation of equipment or the cleanliness of air. When the fluid enters the filter element with a filter screen of a certain specification, its impurities are blocked, and the clean liquid flows out through the filter element. The liquid filter element purifies the contaminated liquid (including oil, water, etc.) to the state required for production and life, that is, to make the liquid reach a certain degree of cleanliness. Among them, the filter element suction head is the most widely used.

[0003] Although the prior art performs sampling operations on liquid samples by setting a filter element pipette tip at the bottom end of the liquid collector, the problem of the same diameter of the tube opening at the bottom end of the pipette tip leads to the inability to sample different volumes according to different samples. Therefore, those skilled in the art provide a filter element pipette tip with a simple structure and high sampling accuracy to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a filter element pipette tip with a simple structure and high sampling accuracy. The utility model provides a filter element pipette tip with a simple structure and high sampling accuracy, which can sample different samples with high accuracy by setting a main body and utilizing multiple connecting tubes at the bottom of the pipette tip. The filter element is set and the filter screen is adjusted by utilizing a fixed plate to achieve sample filtering or direct sampling.

[0005] To achieve the above object, the utility model provides the following technical solutions: a filter element pipette tip with a simple structure and high sample addition accuracy, comprising a main body and a filter element, wherein the filter element is arranged inside the main body, the main body comprises a pipette tip, a first connecting tube is fixedly connected to the middle of the bottom end of the pipette tip, a second connecting tube is threadedly connected to the bottom end of the first connecting tube, and a third connecting tube is threadedly connected to the bottom end of the second connecting tube;

[0006] Through the above technical solution, by arranging multiple connecting tubes at the bottom end of the main body, the multiple connecting tubes are respectively threadedly connected, and the connecting tubes can be installed and disassembled according to different liquid samples, effectively improving the sampling accuracy of the suction head when in use.

[0007] Further, the filter element comprises a housing, the inner side wall of the housing is fixedly connected to a filter screen, one side of the housing is fixedly connected to a rotating shaft, the other end of the rotating shaft is fixedly connected to a rotating disk, the other side of the rotating disk is fixedly connected to a fixing plate, and the side wall of the rotating shaft is rotatably connected to the side wall of the suction head;

[0008] Through the above technical solution, by setting a filter element, setting a filter screen inside the shell, rotating the fixed plate, and driving the filter screen to rotate, when the liquid sample needs to be filtered, the liquid sample can be effectively sampled by rotating the fixed plate to a horizontal state. When the sample does not need to be sampled, the process of directly sampling the sample without filtering can be effectively realized by rotating the fixed plate to a vertical state, thereby effectively increasing the functionality of the device when in use.

[0009] Further, the suction head is connected to the interior of the first connecting tube;

[0010] Through the above technical solution, the samples can be effectively collected.

[0011] Furthermore, the upper position of the side wall of the second connecting pipe is threadedly connected to the lower position of the inner side wall of the first connecting pipe;

[0012] Through the above technical solution, the second connecting pipe is effectively installed.

[0013] Furthermore, the lower position of the inner side wall of the second connecting pipe is threadedly connected to the upper position of the side wall of the third connecting pipe;

[0014] Through the above technical solution, the third connecting pipe is effectively installed.

[0015] Furthermore, the housing and the fixing plate are located in the same plane;

[0016] Through the above technical solution, the status of the filter can be effectively and intuitively displayed.

[0017] Furthermore, the diameter of the side wall of the shell is equal to the diameter of the inner side wall of the suction head;

[0018] Through the above technical solution, samples can be effectively filtered or directly sampled.

[0019] Further, the first connecting pipe and the third connecting pipe are both connected to the second connecting pipe;

[0020] Through the above technical solution, the operation of the device is effectively realized.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, a plurality of connecting tubes are arranged at the bottom end of the main body, and the plurality of connecting tubes are respectively threadedly connected to each other, so that the connecting tubes can be installed and disassembled according to different liquid samples, thereby effectively improving the sampling accuracy of the suction head when in use.

[0023] 2. In the utility model, by setting a filter element, a filter screen is set inside the shell, and the fixed plate is rotated to drive the filter screen to rotate. When the liquid sample needs to be filtered, the liquid sample can be effectively sampled by rotating the fixed plate to a horizontal state. When the sample does not need to be sampled, the fixed plate is rotated to a vertical state, which can effectively realize the process of directly sampling the sample without filtering, effectively increasing the functionality of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a filter element pipette tip with a simple structure and high sample addition accuracy proposed by the utility model;

[0025] Figure 2 This is a front view of a filter element pipette tip with a simple structure and high sample addition accuracy proposed by the utility model;

[0026] Figure 3 This is a cross-sectional view of a filter element pipette tip with a simple structure and high sample addition accuracy proposed by the utility model;

[0027] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Main body; 101. Suction head; 102. First connecting tube; 103. Second connecting tube; 104. Third connecting tube; 2. Filter element; 201. Turntable; 202. Filter screen; 203. Fixed plate; 204. Rotating shaft; 205. Shell. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1-4The utility model provides an embodiment: a filter element pipette tip with a simple structure and high sampling accuracy, comprising a main body 1 and a filter element 2, the filter element 2 is arranged inside the main body 1, the main body 1 comprises a pipette tip 101, a first connecting tube 102 is fixedly connected to the middle of the bottom end of the pipette tip 101, a second connecting tube 103 is threadedly connected to the bottom end of the first connecting tube 102, and the bottom end of the second connecting tube 103 is threadedly connected to the third connecting tube 104. By arranging a plurality of connecting tubes at the bottom end of the main body 1, and threading the plurality of connecting tubes respectively, the connecting tubes can be installed and disassembled according to different liquid samples, thereby effectively improving the sampling accuracy of the pipette tip 101 when in use.

[0032] The filter element 2 includes a shell 205, and a filter screen 202 is fixedly connected to the inner wall of the shell 205. A rotating shaft 204 is fixedly connected to one side of the shell 205, and a turntable 201 is fixedly connected to the other end of the rotating shaft 204. A fixed plate 203 is fixedly connected to the other side of the turntable 201. The side wall of the rotating shaft 204 is rotatably connected to the side wall of the suction head 101. By setting the filter element 2, a filter screen 202 is set inside the shell 205, and the fixed plate 203 is rotated to drive the filter screen 202 to rotate. When it is necessary to filter the liquid sample, the fixed plate 203 is rotated to a horizontal state to effectively sample the liquid sample. When it is not necessary to sample the sample, the fixed plate 203 is rotated to a vertical state to effectively achieve the process of directly sampling the sample without filtering, thereby effectively increasing the functionality of the device when in use.

[0033] The suction head 101 is connected to the inside of the first connecting tube 102, the upper side wall of the second connecting tube 103 is threadedly connected to the lower inner side wall of the first connecting tube 102, the lower inner side wall of the second connecting tube 103 is threadedly connected to the upper side wall of the third connecting tube 104, the shell 205 and the fixing plate 203 are located in the same plane, the diameter of the side wall of the shell 205 is equal to the diameter of the inner side wall of the suction head 101, and the first connecting tube 102 and the third connecting tube 104 are both connected to the second connecting tube 103.

[0034] Working principle: by arranging a plurality of connecting tubes at the bottom end of the main body 1, and the plurality of connecting tubes are respectively threadedly connected, the connecting tubes can be installed and disassembled according to different liquid samples, thereby effectively improving the sampling accuracy of the suction head 101 when in use; by arranging the filter element 2, a filter screen 202 is arranged inside the shell 205, and the fixed plate 203 is rotated to drive the filter screen 202 to rotate; when it is necessary to filter the liquid sample, by rotating the fixed plate 203 to a horizontal state, the liquid sample can be effectively sampled; when it is not necessary to sample the sample, by rotating the fixed plate 203 to a vertical state, the process of directly sampling the sample without filtering can be effectively realized, thereby effectively increasing the functionality of the device when in use.

[0035] 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 filter element pipette tip with a simple structure and high sample addition accuracy, comprising a main body (1) and a filter element (2), wherein the filter element (2) is arranged inside the main body (1), and characterized in that: The main body (1) comprises a suction head (101), a first connecting tube (102) being fixedly connected to the middle of the bottom end of the suction head (101), a second connecting tube (103) being threadedly connected to the bottom end of the first connecting tube (102), and a third connecting tube (104) being threadedly connected to the bottom end of the second connecting tube (103). The filter element (2) comprises a shell (205), the inner side wall of the shell (205) being fixedly connected to a filter screen (202), one side of the shell (205) being fixedly connected to a rotating shaft (204), the other end of the rotating shaft (204) being fixedly connected to a rotating disk (201), the other side of the rotating disk (201) being fixedly connected to a fixing plate (203), and the side wall of the rotating shaft (204) being rotatably connected to the side wall of the suction head (101).

2. According to claim 1, a filter element pipette tip with a simple structure and high sample addition accuracy is characterized in that: The suction head (101) is in communication with the interior of the first connecting tube (102).

3. A filter element pipette tip with a simple structure and high sample addition accuracy according to claim 1, characterized in that: The upper portion of the side wall of the second connecting tube (103) is threadedly connected to the lower portion of the inner side wall of the first connecting tube (102).

4. A filter element pipette tip with a simple structure and high sample addition accuracy according to claim 1, characterized in that: The lower portion of the inner side wall of the second connecting tube (103) is threadedly connected to the upper portion of the side wall of the third connecting tube (104).

5. According to claim 2, a filter element pipette tip with a simple structure and high sample addition accuracy is characterized in that: The housing (205) and the fixing plate (203) are located in the same plane.

6. A filter element pipette tip with a simple structure and high sample addition accuracy according to claim 2, characterized in that: The diameter of the side wall of the housing (205) is equal to the diameter of the inner side wall of the suction head (101).

7. A filter element pipette tip with a simple structure and high sample addition accuracy according to claim 1, characterized in that: The first connecting pipe (102) and the third connecting pipe (104) are both connected to the second connecting pipe (103).

Images