Automatic filtering sampling bottle

Abstract

The utility model discloses an automatic filtering sampling bottle which is characterized in that an upper bottle body is in threaded sealing connection with a lower bottle body, an outer-layer bottle seat is fixedly arranged outside the lower bottle body, an upper cavity for storing unfiltered underground water is arranged in the upper bottle body, and a lower cavity for storing filtered underground water is arranged in the lower bottle body; an outer cavity communicated with the lower cavity is arranged in the outer-layer bottle seat, a quick connector connected with an instrument detection pipeline is fixedly mounted on the outer-layer bottle seat, a sampling pipe extending into the outer cavity is arranged on the quick connector, a sampling inlet capable of being opened and closed is formed in the top of the upper bottle body, and a filter membrane support supported on the lower bottle body is arranged in the lower cavity. A filter membrane is embedded in the filter membrane support, a filter membrane pressing ring installed on the side wall of the upper bottle body is arranged in the upper cavity, and the filter membrane pressing ring presses the filter membrane when the upper bottle body is in threaded sealing connection with the lower bottle body. The sampling bottle can filter sampled underground water in time, so that the complexity of subsequent manual filtering is avoided, the time is saved, and the efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of groundwater sampling technology, and in particular to an automatic filtering sampling bottle. Background Technology

[0002] Regular groundwater sample testing is necessary to understand the regional groundwater quality.

[0003] After the sampled groundwater enters the laboratory, it needs to pass through a 0.45μm filter membrane before entering the instrument for testing to ensure that impurities are effectively filtered out and to ensure accurate testing. During filtration, the sampled groundwater is poured into a syringe, and then a filter head equipped with the filter membrane is attached to the end of the syringe. The groundwater is squeezed out of the filter membrane by squeezing the syringe. However, the flow rate of the filter membrane is very slow, so it is necessary to manually push the syringe continuously and wait for a long time, which is very wasteful of manpower and affects the testing efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is: an automatic filtering sampling bottle that can filter groundwater samples in a timely manner, eliminating the tediousness of subsequent manual filtration, saving time and improving efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: an automatic filtering sampling bottle, including an upper bottle body and a lower bottle body, the upper bottle body and the lower bottle body are connected by a threaded seal, an outer bottle seat is fixedly installed on the outside of the lower bottle body, an upper chamber for storing unfiltered groundwater is provided inside the upper bottle body, a lower chamber for storing filtered groundwater is provided inside the lower bottle body, an outer chamber communicating with the lower chamber is provided inside the outer bottle seat, a quick-connect connector for connecting to the instrument detection pipeline is fixedly installed on the outer bottle seat, a sampling tube extending into the outer chamber is provided on the quick-connect connector, an openable and closable sampling inlet is provided on the top of the upper bottle body, a filter membrane support is provided in the lower chamber and a filter membrane is embedded in the filter membrane support, a filter membrane pressure ring is provided in the upper chamber and installed on the side wall of the upper bottle body, the filter membrane pressure ring presses the filter membrane when the upper bottle body and the lower bottle body are connected by a threaded seal.

[0006] As a preferred embodiment, the filter membrane support includes a receiving box for holding the filter membrane and a support rod for supporting the receiving box. The filter membrane is held in the receiving groove of the receiving box, and the bottom of the receiving groove is provided with a plurality of leakage holes. The support rod is vertically installed and evenly distributed at the bottom of the receiving box.

[0007] As a preferred embodiment, the edge of the filter membrane pressure ring is provided with a pressing part that presses down on the edge of the filter membrane. The lower part of the filter membrane pressure ring is engaged with the bottle mouth of the lower bottle body and the edge of the receiving groove of the receiving box. A sealing ring is also provided below the filter membrane pressure ring to engage with the end face of the bottle mouth of the lower bottle body and the receiving box.

[0008] As a preferred embodiment, the filter membrane pressure ring is provided with a guide slope for guiding groundwater in the upper chamber.

[0009] As a preferred embodiment, the bottom of the lower bottle body is provided with a through-hole, and the bottom of the lower bottle body is a conical inclined surface that slopes toward the through-hole.

[0010] As a preferred embodiment, the outer cavity of the outer bottle holder is provided with an inclined surface that slopes toward the sampling tube.

[0011] As a preferred embodiment, a rubber ring is fixedly installed on the periphery of the container to contact and engage with the inner wall of the lower bottle.

[0012] After adopting the above technical solution, the effect of this utility model is as follows: The automatic filtering sampling bottle includes an upper bottle body and a lower bottle body, with a threaded seal connection between the upper and lower bottle bodies. An outer bottle holder is fixedly installed on the outside of the lower bottle body. The upper bottle body has an upper chamber for storing unfiltered groundwater, and the lower bottle body has a lower chamber for storing filtered groundwater. The outer bottle holder has an outer chamber communicating with the lower chamber. A quick-connect fitting for connecting to the instrument's detection pipeline is fixedly installed on the outer bottle holder. The quick-connect fitting has a sampling tube extending into the outer chamber. The top of the upper bottle body has an openable and closable sampling inlet. A filter membrane support is provided in the lower chamber, supported by a filter membrane on the lower bottle body. A filter membrane is embedded in the filter membrane support. The upper chamber has a sampling inlet for... A filter membrane pressure ring on the side wall of the upper bottle compresses the filter membrane when the upper and lower bottles are connected by a threaded seal. Groundwater from the corresponding sampling point is sampled into the upper chamber by opening the sampling inlet. After sampling, the sampling bottle is placed vertically for sampling of other bottles. When the sampling bottle is placed vertically, groundwater will pass through the filter membrane due to gravity, gradually seep into the lower chamber, and then enter the outer chamber. After filtration, a vacuum pump is connected via a quick-connect connector to extract the water into the instrument. This eliminates the need for manual squeezing and filtration, allowing other operations to be performed while the sampling bottle is being filtered, making full use of time. This sampling bottle can filter the sampled groundwater in a timely manner, eliminating the tediousness of subsequent manual filtration, saving time, and improving efficiency.

[0013] Furthermore, the filter membrane support includes a receiving box for holding the filter membrane and a support rod for supporting the receiving box. The filter membrane is held in the receiving groove of the receiving box, and the bottom of the receiving groove is provided with several leakage holes. The support rod is vertically installed and evenly distributed at the bottom of the receiving box. After being supported by the support rod, the receiving box can be easily installed and removed from the lower bottle body, and the filter membrane can also be easily replaced. The structure is simple and improves the flexibility of use.

[0014] Furthermore, the filter membrane pressure ring has a pressing part on its edge to press down the edge of the filter membrane. The lower part of the filter membrane pressure ring is engaged with the bottle mouth of the lower bottle body and the edge of the receiving groove of the receiving box. A sealing ring is also provided below the filter membrane pressure ring to cooperate with the bottle mouth of the lower bottle body and the end face of the receiving box. The pressing part can ensure that the filter membrane is installed and fixed accurately, and the cooperation with the sealing ring can ensure that there is no leakage when filtering groundwater, thus ensuring stable and accurate filtration.

[0015] Furthermore, the filter membrane pressure ring is provided with a guide slope for guiding groundwater in the upper chamber; this can effectively guide the groundwater in the upper chamber to the filter membrane, ensuring filtration efficiency.

[0016] Furthermore, since the bottom of the lower bottle body is provided with a through-hole, and the bottom of the lower bottle body is a conical inclined surface that slopes towards the through-hole, the filtered groundwater can be drawn towards the through-hole through the conical inclined surface, thereby moving the filtered groundwater in the lower chamber to the outer chamber for easy extraction.

[0017] Furthermore, the outer cavity of the outer bottle holder is provided with an inclined surface that slopes towards the sampling tube, allowing groundwater in the outer cavity to converge towards the sampling tube, facilitating extraction and improving the effectiveness of use.

[0018] Furthermore, since the outer periphery of the container is fixedly installed with a rubber ring that contacts and engages with the inner wall of the lower bottle, the container can be installed without shaking in the lower cavity, ensuring stable mounting, reducing gaps, and improving the performance. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0021] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0022] Figure 3 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0023] Figure 4 yes Figure 2 A magnified view of a portion of the image;

[0024] In the attached diagram: 1. Upper bottle body; 2. Lower bottle body; 3. Outer bottle holder; 4. Upper chamber; 5. Lower chamber; 6. Outer chamber; 7. Quick-connect connector; 8. Sampling tube; 9. Sampling inlet; 10. Filter membrane; 11. Filter membrane pressure ring; 12. Cylindrical tube; 13. Sealing cap; 14. Receptacle box; 15. Support rod; 16. Receptacle groove; 17. Leakage hole; 18. Sealing ring; 19. Guide slope; 20. Conical slope; 21. Inclined slope; 22. Rubber ring; 23. Lower pressure part. Detailed Implementation

[0025] The present invention will be further described in detail below through specific embodiments.

[0026] like Figures 1 to 4 An automatic filtration sampling bottle includes an upper bottle body 1 and a lower bottle body 2, which are connected by a threaded seal. An outer bottle seat 3 is fixedly installed on the outside of the lower bottle body 2. The upper bottle body 1 has an upper chamber 4 for storing unfiltered groundwater, and the lower bottle body 2 has a lower chamber 5 for storing filtered groundwater. The outer bottle seat 3 has an outer chamber 6 that communicates with the lower chamber 5. A quick-connect connector 7 that connects to the instrument's detection pipeline is fixedly installed on the outer bottle seat 3. The quick-connect connector 7 has a sampling tube 8 that extends into the outer chamber 6. The top of the upper bottle body 1 has an openable and closable sampling inlet 9. The lower chamber 5 has a filter membrane support supported on the lower bottle body 2, and a filter membrane 10 is embedded in the filter membrane support. The upper chamber 4 has a filter membrane pressure ring 11 installed on the side wall of the upper bottle body 1. The filter membrane pressure ring 11 presses the filter membrane 10 when the upper bottle body 1 and the lower bottle body 2 are connected by a threaded seal.

[0027] In this embodiment, a vertical cylindrical pipe 12 is provided at the sampling inlet 9. A sealing cap 13 is threaded onto the cylindrical pipe 12 to ensure that no impurities enter the sampling inlet 9 after sampling. The upper bottle body 1 is provided with internal threads, and the lower bottle body 2 is provided with external threads. The outer bottle seat 3 is cylindrical and wraps around the lower bottle body 2. The quick-connect connector 7 is provided on the upper end face of the outer bottle seat 3. The sampling tube 8 extends from the upper end face downwards to the bottom of the outer chamber 6 to ensure stable delivery of filtered groundwater.

[0028] like Figure 2 and Figure 3As shown, the filter membrane support includes a receiving box 14 for holding the filter membrane 10 and support rods 15 for supporting the receiving box 14. The filter membrane 10 is held in the receiving groove 16 of the receiving box 14. The bottom of the receiving groove 16 is provided with several leakage holes 17. The support rods 15 are vertically installed and evenly distributed at the bottom of the receiving box 14. The receiving box 14 is circular, and there are three support rods 15, which are fixed around the circumference of the receiving box 14. This ensures the stability of the receiving box 14 and facilitates its installation and removal in the lower bottle body 2. It also facilitates the replacement of the filter membrane 10. The structure is simple and improves the flexibility of use.

[0029] Furthermore, the edge of the filter membrane pressure ring 11 is provided with a pressing part 23 that presses down on the edge of the filter membrane 10. The lower part of the filter membrane pressure ring 11 is engaged with the bottle mouth of the lower bottle body 2 and the edge of the receiving groove 16 of the receiving box 14. A sealing ring 18 is also provided below the filter membrane pressure ring 11 to engage with the end face of the bottle mouth of the lower bottle body 2 and the receiving box 14. The pressing part 23 extends into the receiving groove 16 to effectively press the filter membrane 10, and cooperates with the sealing ring 18 to ensure that there is no leakage when filtering groundwater, thus ensuring stable and accurate filtration.

[0030] like Figure 4 As shown, the filter membrane pressure ring 11 is provided with a guide slope 19 for guiding groundwater in the upper chamber 4; it can effectively guide the groundwater in the upper chamber 4 to the filter membrane 10 to ensure filtration efficiency.

[0031] Furthermore, the bottom of the lower bottle body 2 is provided with a through-hole, and the bottom of the lower bottle body 2 is a conical inclined surface 20 that slopes towards the through-hole; the side wall of the through-hole is also an inclined surface to facilitate the flow of groundwater. The conical inclined surface 20 can draw the filtered groundwater towards the through-hole, thereby moving the filtered groundwater in the lower chamber 5 to the outer chamber 6 for easy extraction.

[0032] The outer chamber 6 of the outer bottle holder 3 is provided with an inclined slope 21 that slopes toward the sampling tube 8; this allows the groundwater in the outer chamber 6 to be collected toward the sampling tube 8, making it easier to extract and improving the effectiveness of use.

[0033] In this embodiment, a rubber ring 22 is fixedly installed on the periphery of the receiving box 14 to contact and cooperate with the inner wall of the lower bottle body 2; this ensures that the receiving box 14 will not shake in the lower chamber 5 when it is installed, the installation is stable, the gap is reduced, and the use effect is improved.

[0034] The working principle of this embodiment is as follows: First, rotate the sealing cap 13 to open the sampling inlet 9 and sample the groundwater from the corresponding sampling point into the upper chamber 4. Then, tighten the sealing cap 13 to close the sampling inlet 9. After sampling, place the sampling bottle vertically and then sample other sampling bottles. After the sampling bottle is placed vertically, due to gravity, the groundwater will pass through the filter membrane 10, and then gradually seep into the lower chamber 5 and enter the outer chamber 6 through the connecting hole. After filtration is completed, simply connect the air pump through the quick-connect connector 7 to extract the water into the instrument to complete the detection preparation.

[0035] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications and alterations to the technical solution of the present utility model without departing from its design spirit shall fall within the protection scope defined by the claims of the present utility model.

Claims

1. An automatic filtering sampling bottle, comprising an upper bottle body and a lower bottle body, characterized in that: The upper and lower bottles are connected by a threaded seal. An outer bottle holder is fixedly installed on the outside of the lower bottle. The upper bottle contains an upper chamber for storing unfiltered groundwater, and the lower bottle contains a lower chamber for storing filtered groundwater. The outer bottle holder contains an outer chamber that communicates with the lower chamber. A quick-connect fitting for connecting to the instrument's detection pipeline is fixedly installed on the outer bottle holder. A sampling tube that extends into the outer chamber is provided on the quick-connect fitting. The top of the upper bottle has an openable and closable sampling inlet. A filter membrane support is provided in the lower chamber, and a filter membrane is embedded in the filter membrane support. A filter membrane pressure ring is provided in the upper chamber, installed on the side wall of the upper bottle. The filter membrane pressure ring presses the filter membrane tightly when the upper and lower bottles are connected by a threaded seal.

2. The automatic filtering sampling bottle as described in claim 1, characterized in that: The filter membrane support includes a receiving box for holding the filter membrane and a support rod for supporting the receiving box. The filter membrane is held in the receiving groove of the receiving box. The bottom of the receiving groove is provided with several leakage holes. The support rod is vertically installed and evenly distributed at the bottom of the receiving box.

3. An automatic filtering sampling bottle as described in claim 2, characterized in that: The filter membrane pressure ring has a pressing part on the edge of the filter membrane. The lower part of the filter membrane pressure ring is engaged with the bottle mouth of the lower bottle body and the edge of the receiving groove of the receiving box. A sealing ring is also provided below the filter membrane pressure ring to engage with the end face of the bottle mouth of the lower bottle body and the receiving box.

4. An automatic filtering sampling bottle as described in claim 3, characterized in that: The filter membrane pressure ring is provided with a guide slope for guiding groundwater in the upper chamber.

5. An automatic filtering sampling bottle as described in claim 4, characterized in that: The bottom of the lower bottle body is provided with a through-hole, and the bottom of the lower bottle body is a conical inclined surface that slopes toward the through-hole.

6. An automatic filtering sampling bottle as described in claim 5, characterized in that: The outer cavity of the outer bottle holder is provided with an inclined surface that slopes toward the sampling tube.

7. An automatic filtering sampling bottle as described in claim 6, characterized in that: The outer periphery of the container is fixedly fitted with a rubber ring that contacts and engages with the inner wall of the lower bottle.

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