Domestic sewage common drug detection water sample collector

Abstract

The utility model discloses a domestic sewage common drug detection water sample collector which comprises a low-temperature cooling circulating pump, a freezing bin used for containing a plurality of water sample collecting bottles is formed in the low-temperature cooling circulating pump, a sampling platform is placed at the top of the low-temperature cooling circulating pump, and a liquid conveying pipe is arranged in the sampling platform through a rotating mechanism; and the bottom end of the infusion tube corresponds to the bottle opening of the water sample collecting bottle. According to the device, a detected water sample can be automatically and uniformly discharged into a plurality of water sample collecting bottles which are arranged in the freezing bin in an enclosing manner along the liquid conveying pipe, and the detected water sample in the water sample collecting bottles can be subjected to freezing preservation at the temperature of less than or equal to-20 DEG C through the low-temperature cooling circulating pump, so that the effects of rapid sampling and immediate freezing preservation can be realized; therefore, the problems that the sampling process is tedious and the sampling process is easy to make mistakes due to manual periodic sampling and manual storage are solved.

Description

Technical Field

[0001] The present application relates to the technical field of domestic sewage detection equipment, and in particular to a water sample collector for detecting common drugs in domestic sewage. Background Art

[0002] Currently, according to the standard TSHSFJD0001-2021, 13 common drugs and metabolites such as amphetamine, methamphetamine, O6-monoacetylmorphine, morphine, codeine, tramadol, 3,4-methylenedioxymethamphetamine, 3,4-methylenedioxyamphetamine, cocaine, benzoylecgonine, ketamine, norketamine, and methcathinone are stipulated to trace the drug manufacturing and drug use in the region through biological sewage sampling.

[0003] There are clear requirements for the sampling and storage of sewage samples: sampling frequency every 24 hours, sampling volume of 500mL / bottle, sampled samples are immediately frozen (≤-20℃), and stored away from light. Samples collected within 24 hours are mixed in equal proportions, and 500mL samples are sent to the testing unit for measurement.

[0004] In the relevant technology, since the standard requires high sampling conditions (24h periodic sampling, and immediate freezing and storage at ≤-20℃ after sampling), there is currently no automatic collector specially designed for drug detection water samples in sewage treatment plants. The only way is to manually periodically sample and manually store the samples in a freezer for storage.

[0005] With respect to the above-mentioned related technologies, the inventors believe that: the sampling process is not only cumbersome but also error-prone through manual periodic sampling and manual storage. Utility Model Content

[0006] The purpose of this application is to provide a water sample collector for detecting common drugs in domestic sewage, so as to solve the problem that the sampling process is not only cumbersome but also error-prone through manual periodic sampling and manual storage.

[0007] The present application provides a water sample collector for detecting common drugs in domestic sewage, which adopts the following technical solutions:

[0008] A water sample collector for detecting common drugs in domestic sewage comprises a low-temperature cooling circulation pump, a freezing chamber for placing a plurality of water sample collection bottles is provided in the low-temperature cooling circulation pump, a sampling platform is placed on the top of the low-temperature cooling circulation pump, an infusion tube is arranged in the sampling platform via a rotating mechanism, and the bottom end of the infusion tube corresponds to the bottle mouth of the water sample collection bottle.

[0009] Furthermore, the rotating mechanism includes an insulating disc rotatably arranged at the bottom of the sampling platform, the insulating disc covers the top of the freezing chamber, a timing automatic turntable is rotatably arranged on the top of the sampling platform, a rotating rod is arranged between the timing automatic turntable and the insulating disc, the two ends of the infusion tube are respectively arranged between the timing automatic turntable and the insulating disc, and a driving component cooperating with the timing automatic turntable is also arranged on the sampling platform.

[0010] Furthermore, the driving assembly includes a carrier frame arranged on one side of the top of the sampling platform, a driving member is arranged on the carrier frame, a timing driving shaft is arranged on the top of the timing automatic turntable, and the top end of the timing driving shaft is connected to the output end of the driving member.

[0011] Furthermore, a limiting assembly is arranged between one end of the infusion tube and the timing automatic turntable, a conveying threaded hole is opened on the timing automatic turntable, the limiting assembly includes a threaded pipe sleeve threadedly connected to the conveying threaded hole, a rotating sleeve matching the infusion tube is rotatably connected in the threaded pipe sleeve, a limiting ring block is arranged on the outer side of one end of the rotating sleeve, and the limiting ring block is clamped to the infusion tube through a clamping piece.

[0012] Furthermore, the clamping member includes a mounting ring block arranged on the outside of one end of the infusion tube, a limiting groove matching with the mounting ring block is opened on one side of the limiting ring block, a limiting clamping ring block pressed against the mounting ring block is also arranged in the limiting groove, and the inner side of the limiting clamping ring block matches with the outer side of the infusion tube.

[0013] Furthermore, the heat-insulating disc is provided with a sampling hole corresponding to the bottle mouth of the water sample collection bottle, and one end of the infusion tube cooperates with the sampling hole.

[0014] Furthermore, a liquid inlet piece is also provided on the top of the sampling platform, and the output end of the liquid inlet piece cooperates with the liquid infusion tube in the delivery threaded hole.

[0015] Furthermore, a replacement port is provided on one side of the sampling platform.

[0016] Compared with the prior art, the beneficial effects of this application are:

[0017] By arranging a structure in which a low-temperature cooling circulation pump, a freezing chamber, a sampling platform, an infusion tube and a rotating mechanism cooperate with each other, it is possible to automatically discharge the test water samples along the infusion tube into a plurality of circles in the water sample collection bottles arranged in the freezing chamber, and the low-temperature cooling circulation pump can be used to freeze the test water samples in the water sample collection bottles at ≤-20°C, thereby achieving the effects of rapid sampling and immediate frozen storage, thereby solving the problem of cumbersome sampling process and error-prone sampling process caused by manual periodic sampling and manual storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of a water sample collector for detecting common drugs in domestic sewage according to an embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of the structure in which the low-temperature cooling circulation pump and the sampling platform are separated in an embodiment of the present application.

[0020] Figure 3 It is a schematic diagram of the structure of the rotating mechanism of the embodiment of the present application.

[0021] Figure 4 yes Figure 3 Enlarged schematic diagram of part A.

[0022] Description of reference numerals:

[0023] 1. Low-temperature cooling circulation pump; 11. Freezing chamber; 12. Water sample collection bottle; 2. Sampling platform; 21. Insulation disc; 211. Injection hole; 22. Timing automatic turntable; 221. Delivery threaded hole; 23. Rotating rod; 24. Carrying frame; 25. Driving motor; 26. Timing driving shaft; 27. Replacement port; 3. Infusion tube; 31. Installation ring block; 4. Threaded pipe sleeve; 41. Rotating sleeve; 42. Limiting ring block; 421. Limiting groove; 43. Limiting clamping ring block; 5. Peristaltic pump. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-4 This application is described in further detail.

[0025] The present application embodiment discloses a water sample collector for detecting common drugs in domestic sewage, referring to Figure 1 and Figure 2 In this embodiment, the water sample collector for common drug detection in domestic sewage includes a low-temperature cooling circulation pump 1, a freezing chamber 11, a sampling platform 2, an infusion tube 3, and a rotating mechanism. The freezing chamber 11 is opened in the center of the low-temperature cooling circulation pump 1, and a plurality of water sample collection bottles 12 are arranged in a circle in the freezing chamber 11 to collect and store the test water samples, and then the low-temperature cooling circulation pump 1 realizes the freezing storage of the samples at ≤-20°C.

[0026] The sampling platform 2 is placed on the top of the low-temperature cooling circulation pump 1 to cover the top of the freezing chamber 11; the infusion tube 3 is installed in the sampling platform 2 through a rotating mechanism, and the rotating mechanism is used to drive the infusion tube 3 to rotate; the top of the infusion tube 3 extends through the top of the sampling platform 2, and a liquid inlet component is also provided on the top of the sampling platform 2, and the liquid inlet component is a peristaltic pump 5, the output end of the peristaltic pump 5 is interconnected with the top of the infusion tube 3, and the input end of the peristaltic pump 5 is interconnected with the test water sample, so that the test water sample can be discharged into the infusion tube 3 through the peristaltic pump 5.

[0027] At the same time, the bottom end of the infusion tube 3 extends through the bottom of the sampling platform 2, and the bottom end of the infusion tube 3 corresponds to the bottle mouth of the water sample collecting bottle 12; when the test water sample is discharged from the peristaltic pump 5 into the infusion tube 3, the infusion tube 3 discharges the test water sample into the water sample collecting bottle 12, and then under the action of the rotating mechanism, the infusion tube 3 is driven to rotate, so that the bottom end of the infusion tube 3 matches and corresponds to the water sample collecting bottle 12 below at the next moment, thereby facilitating the collection of the test water samples in all the water sample collecting bottles 12 in the freezing chamber 11 to achieve unified frozen storage.

[0028] Therefore, by setting up a structure in which the low-temperature cooling circulation pump 1, the freezing chamber 11, the sampling platform 2, the infusion tube 3 and the rotating mechanism cooperate with each other, it is possible to automatically arrange the test water samples along the infusion tube 3 into a plurality of circles in the water sample collection bottles 12 arranged in the freezing chamber 11, and the low-temperature cooling circulation pump 1 can freeze the test water samples in the water sample collection bottle 12 at ≤-20°C, thereby achieving the effect of rapid sampling and immediate freezing and preservation, thereby solving the problem of cumbersome sampling process and error-prone sampling process caused by manual periodic sampling and manual preservation.

[0029] At the same time, since the sampling platform 2 and the peristaltic pump 5 are separated from the freezing chamber 11 of the low-temperature cooling circulation pump 1, the freezing chamber 11 only acts on the water sample collection bottle 12 and has no freezing effect on other mechanical structures, thereby ensuring that other mechanical structures will not be frozen.

[0030] The structure of the rotating mechanism is described in detail below:

[0031] Specifically, refer to Figure 2 and Figure 3In this embodiment, the rotating mechanism includes a heat preservation disc 21, a timed automatic rotating disc 22, a rotating rod 23 and a driving assembly. The heat preservation disc 21 is rotatably mounted at the bottom center of the sampling platform 2. The heat preservation disc 21 is made of heat preservation material and has good heat preservation and insulation effects. When the sampling platform 2 is placed on the top of the low-temperature cooling circulation pump 1, the heat preservation disc 21 can seal and cover the top of the freezing chamber 11 to reduce the loss of cold air in the freezing chamber 11, thereby ensuring that the freezing chamber 11 can be kept frozen at ≤-20°C for a long time.

[0032] The timing automatic turntable 22 is rotatably installed at the top center of the sampling platform 2; one end of the rotating rod 23 is fixedly connected to the bottom center of the timing automatic turntable 22, and the other end of the rotating rod 23 is fixedly connected to the bottom center of the insulation disk 21, and the two ends of the infusion tube 3 are respectively installed between the timing automatic turntable 22 and the insulation disk 21; at the same time, the driving component is arranged on the top of the sampling platform 2, and the output end of the driving component cooperates with the timing automatic turntable 22.

[0033] When the driving component is started, the output end of the driving component drives the timing automatic turntable 22 to rotate. Since the timing automatic turntable 22 is integrated with the insulation disc 21 below through the rotating rod 23, the timing automatic turntable 22 drives the insulation disc 21 to rotate simultaneously through the rotating rod 23, thereby driving the infusion tube 3 to rotate a certain angle to correspond to the water sample collection bottles 12 in the freezing chamber 11 respectively, thereby facilitating the test water samples to be respectively poured into the water sample collection bottles 12.

[0034] More specifically, refer to Figure 3 In this embodiment, the driving assembly includes a carrier 24, a driving member and a timing drive shaft 26. The carrier 24 is fixedly mounted on one side of the top of the sampling platform 2; the driving member is a driving motor 25, which is fixedly mounted on the carrier 24, and the output shaft of the driving motor 25 is arranged downward; one end of the timing drive shaft 26 is fixedly connected to the top center of the timing automatic turntable 22, and the other end of the timing drive shaft 26 is fixedly connected to the output shaft of the driving motor 25. When the driving motor 25 on the carrier 24 is started, the output end of the driving motor 25 drives the timing drive shaft 26 to rotate, so that the timing drive shaft 26 drives the timing automatic turntable 22 to rotate.

[0035] In addition, refer to Figure 3 and Figure 4In this embodiment, a limit assembly is provided between the top of the infusion tube 3 and the timing automatic turntable 22, and the limit assembly is used to detachably mount the top of the infusion tube 3 on the timing automatic turntable 22. At the same time, an injection hole 211 is provided on the heat preservation disc 21, and the injection hole 211 corresponds to the bottle mouth of the water sample collection bottle 12, and the bottom end of the infusion tube 3 cooperates with the injection hole 211 to extend into the injection hole 211, so that the bottom end of the infusion tube 3 corresponds to the bottle mouth of the water sample collection bottle 12, and it is convenient to collect the test water sample into the water sample collection bottle 12 through the infusion tube 3.

[0036] Specifically, refer to Figure 4 In this embodiment, the limiting assembly includes a threaded sleeve 4, a rotating sleeve 41, a limiting ring block 42 and a clamping member. A conveying threaded hole 221 is provided on the timing automatic turntable 22, and the threaded sleeve 4 is threadedly connected in the conveying threaded hole 221; the rotating sleeve 41 is rotatably connected inside the threaded sleeve 4, and the rotating sleeve 41 is composed of a sleeve and a collar installed on the outer side of the top end of the sleeve, and the rotating sleeve 41 formed integrally by the sleeve and the collar is in a T-shaped structure as a whole.

[0037] At the same time, the threaded tube sleeve 4 is rotatably sleeved on the sleeve, and the infusion tube 3 cooperates with the sleeve so that the top of the infusion tube 3 is installed on the inner side of the sleeve to extend out of the top of the delivery threaded hole 221 along the sleeve, so that the output end of the peristaltic pump 5 extends into the infusion tube 3 of the delivery threaded hole 221.

[0038] The limiting ring block 42 is installed at the bottom end of the rotating sleeve 41. Specifically, the limiting ring block 42 is fixedly installed on the outer side of one end of the sleeve away from the collar, and the threaded pipe sleeve 4 is located between the limiting ring block 42 and the collar; at the same time, the diameter of the collar is larger than the inner diameter of the threaded pipe sleeve 4, and the diameter of the limiting ring block 42 is larger than the inner diameter of the threaded pipe sleeve 4, so that the threaded pipe sleeve 4 can only rotate between the limiting ring block 42 and the collar and around the outer side of the sleeve, and the setting of the limiting ring block 42 and the collar can prevent the threaded pipe sleeve 4 from slipping out of the outside of the sleeve.

[0039] At the same time, the clamping member is arranged between the limiting ring block 42 and the infusion tube 3 to firmly clamp the infusion tube 3 in the rotating sleeve 41, so that the infusion tube 3 is firmly installed on the timing automatic turntable 22 through the threaded sleeve 4. Specifically, the clamping member includes a mounting ring block 31 and a limiting clamping ring block 43.

[0040] The mounting ring block 31 is fixedly mounted on the outer side of the top end of the infusion tube 3, and a limiting groove 421 is provided on the side of the limiting ring block 42 away from the sleeve ring, and the limiting groove 421 cooperates with the mounting ring block 31. When the top of the infusion tube 3 extends into the interior of the sleeve, the mounting ring block 31 is installed in the limiting groove 421. The limiting clamping ring block 43 is installed on the inner side of the limiting groove 421 to press the mounting ring block 31 against each other, and the inner side of the limiting clamping ring block 43 cooperates with the outer side of the infusion tube 3, so that the infusion tube 3 on the mounting ring block 31 can be stably installed.

[0041] Preferably, a prying hole is provided on the outer side of the limit clamping ring block 43; after the threaded pipe sleeve 4 is twisted out from the delivery threaded hole 221, the limit clamping ring block 43 can be pried out from the limit groove 421 by using a prying tool to extend into the prying hole, so as to release the limit on the installation ring block 31, thereby facilitating the removal of the infusion tube 3 from the rotating sleeve 41. In this way, after completing a round of 24h sampling, the infusion tube 3 can be directly removed and replaced with a new one, thereby reducing the influence of residual water samples on the next round of sampling.

[0042] Better, refer to Figure 2 In the present embodiment, a replacement port 27 is provided on one side of the sampling platform 2. The replacement port 27 can facilitate the removal of the infusion tube 3 from between the timing automatic turntable 22 and the heat preservation disc 21 to realize the removal and replacement of the infusion tube 3; at the same time, the replaced infusion tube 3 can also be reinstalled inside the sampling platform 2 through the replacement port 27.

[0043] The implementation principle of the water sample collector for detecting common drugs in domestic sewage in the embodiment of the present application is as follows:

[0044] When the peristaltic pump 5 is started, the output end of the peristaltic pump 5 discharges the test water sample into the infusion tube 3, and the test water sample is discharged into one of the water sample collection bottles 12 in the freezing chamber 11 along the infusion tube 3; when the water sample collection bottle 12 is full of the test water sample, the driving motor 25 on the carrier frame 24 is started, and the output end of the driving motor 25 drives the timing driving shaft 26 to rotate, so that the timing driving shaft 26 drives the timing automatic turntable 22 to rotate, and at this time, the timing automatic turntable 22 rotates a certain angle at a time, so as to drive the insulation disc 21 to rotate a certain angle through the rotating rod 23, so that the end of the infusion tube 3 inserted into the injection hole 211 can match and correspond to the water sample collection bottle 12 at the next moment, so that the test water sample can be discharged into the water sample collection bottle 12 at the next moment, and in this way, through the above steps, all the water sample collection bottles 12 placed inside the freezing chamber 11 are filled, and then the low-temperature cooling circulation pump 1 is used to freeze the test water samples in the water sample collection bottle 12 at ≤-20°C.

[0045] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A water sample collector for common drug detection in domestic sewage, characterized by: The invention comprises a low-temperature cooling circulation pump (1), wherein a freezing chamber (11) is provided inside the low-temperature cooling circulation pump (1) for placing a plurality of water sample collection bottles (12), a sampling platform (2) is placed on the top of the low-temperature cooling circulation pump (1), and an infusion tube (3) is arranged inside the sampling platform (2) via a rotating mechanism, and the bottom end of the infusion tube (3) corresponds to the bottle mouth of the water sample collection bottle (12).

2. A water sample collector for detecting common drugs in domestic sewage according to claim 1, characterized in that: The rotating mechanism comprises a heat-insulating disc (21) rotatably arranged at the bottom of the sampling platform (2), the heat-insulating disc (21) covers the top of the freezing chamber (11), a timing automatic turntable (22) is rotatably arranged at the top of the sampling platform (2), a rotating rod (23) is arranged between the timing automatic turntable (22) and the heat-insulating disc (21), the two ends of the infusion tube (3) are respectively arranged between the timing automatic turntable (22) and the heat-insulating disc (21), and a driving component matched with the timing automatic turntable (22) is also arranged on the sampling platform (2).

3. A water sample collector for detecting common drugs in domestic sewage according to claim 2, characterized in that: The driving assembly comprises a carrier (24) arranged on one side of the top of the sampling platform (2), a driving member is arranged on the carrier (24), a timing driving shaft (26) is arranged on the top of the timing automatic turntable (22), and the top end of the timing driving shaft (26) is connected to the output end of the driving member.

4. A water sample collector for detecting common drugs in domestic sewage according to claim 2, characterized in that: A limit position assembly is arranged between one end of the infusion tube (3) and the timing automatic turntable (22); a delivery threaded hole (221) is provided on the timing automatic turntable (22); the limit position assembly comprises a threaded sleeve (4) threadedly connected to the delivery threaded hole (221); a rotating sleeve (41) matched with the infusion tube (3) is rotatably connected inside the threaded sleeve (4); a limit position ring block (42) is arranged on the outer side of one end of the rotating sleeve (41); the limit position ring block (42) is clamped to the infusion tube (3) via a clamping member.

5. A water sample collector for detecting common drugs in domestic sewage according to claim 4, characterized in that: The clamping member comprises a mounting ring block (31) arranged on the outside of one end of the infusion tube (3); a limiting groove (421) matching with the mounting ring block (31) is provided on one side of the limiting ring block (42); a limiting clamping ring block (43) abutting against the mounting ring block (31) is also provided in the limiting groove (421); the inner side of the limiting clamping ring block (43) matches with the outer side of the infusion tube (3).

6. A water sample collector for detecting common drugs in domestic sewage according to claim 4, characterized in that: The heat-insulating disc (21) is provided with a sampling hole (211) corresponding to the bottle mouth of the water sample collection bottle (12), and one end of the infusion tube (3) matches the sampling hole (211).

7. A water sample collector for detecting common drugs in domestic sewage according to claim 4, characterized in that: A liquid inlet component is also provided on the top of the sampling platform (2), and the output end of the liquid inlet component cooperates with the liquid infusion tube (3) in the delivery threaded hole (221).

8. The water sample collector for detecting common drugs in domestic sewage according to claim 1, characterized in that: A replacement port (27) is provided on one side of the sampling platform (2).

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