Convenient sampling device for sewage detection

Abstract

The utility model discloses a convenient sampling device for sewage detection, which relates to the technical field of sewage sampling and comprises a shell, mounting holes are formed in the bottom and the side wall of the shell, a fixing frame is fixedly mounted at the top of the shell, and a plurality of sampling mechanisms are fixedly mounted in the shell. The sampling mechanism comprises a sampling barrel fixedly installed in the shell, a sampling opening is formed in the bottom of the sampling barrel, a blanking cap is arranged at the bottom of the sampling opening, a vertical rod is fixedly installed on the blanking cap, a pressing cap is fixedly installed on the vertical rod, a spring is arranged at the upper end of the vertical rod in a sleeving mode, and a driving mechanism is arranged above the pressing cap. A water outlet is fixedly formed in the lower part of the outer side of the sampling cylinder, a threaded plug is arranged in the water outlet, and an air exhaust hole is formed in the threaded plug. According to the convenient sampling device for sewage detection, through cooperative use of the sampling mechanism and the driving mechanism, sewage at different depths can be rapidly sampled.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage sampling technical field, specifically a convenient sampling device for sewage detection. BACKGROUND

[0002] Environmental monitoring refers to the activities of environmental monitoring agencies to monitor and measure environmental quality. Environmental monitoring is to determine the environmental pollution and environmental quality by monitoring and measuring the indicators reflecting environmental quality. A wastewater sampling device is needed in the environmental monitoring process.

[0003] In the prior art, a wastewater sampling device for environmental monitoring with convenient sampling depth adjustment is disclosed in Chinese patent CN220473044U. The device includes a rack, a retractable assembly mounted on the inner wall of the rack, a rotating plate and a fixed plate, a fixed assembly mounted on the surface of the rotating plate, a housing fixedly connected to the bottom of the fixed plate through screws, a sampling assembly and a drive assembly mounted on the inner wall of the housing, a handle fixedly connected to the top of the rack through screws, and a key installed on the top of the handle.

[0004] The above device uses an electric telescopic rod and a servo motor to drive the electromagnet to act, which realizes the upward movement of the vertical rod and drives the rubber block to move upward, so that the rubber block is in the open position, and the sampling of sewage is realized. The electric telescopic rod, servo motor and electromagnet are used to perform a series of actions when the rubber block performs the upward action. During the sampling process, there is air in the sampling cylinder, and the air pressure will hinder the sewage from entering the sampling cylinder. Only when the air in the sampling cylinder is discharged can the sewage enter the sampling cylinder, and the sampling speed is slow. SUMMARY

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a convenient sampling device for sewage detection, including the casing, the casing bottom and the lateral wall are equipped with the mounting hole, the casing top is fixedly installed with the fixed frame, a plurality of sampling mechanisms are fixedly installed in the casing, the sampling mechanism includes the sampling cylinder fixedly installed in the casing, the sampling cylinder bottom is equipped with the sampling port, the sampling port bottom is equipped with the plug, the plug is fixedly installed with the vertical rod, the vertical rod is fixedly installed with the pressure cap, the vertical rod upper end is equipped with the spring, the pressure cap top is equipped with a drive mechanism.

[0006] Preferably, a drain port is fixedly installed on the lower part of the outer side of the sampling cylinder, a threaded plug is provided in the drain port, an air extraction hole is formed in the threaded plug, a one-way valve is provided in the air extraction hole, and a sealing cap is threadedly installed at the end of the air extraction hole.

[0007] Preferably, the sampling cylinder top is provided with a through hole, and a sealing ring is arranged in the through hole, and the vertical rod extends into the sampling cylinder through the through hole of the sampling cylinder top.

[0008] Preferably, one end of the spring is connected to the sampling cylinder top, the other end of the spring is connected to the bottom of the pressing cap, the plug cover is movably arranged at the lower end of the sampling port through the vertical rod, a sealing ring is arranged at the bottom of the sampling port, a screw thread is arranged in the drain port, the screw plug is connected to the drain port through the screw thread, and the drain port and the sampling port extend out of the shell through the mounting holes.

[0009] Preferably, the driving mechanism comprises a positioning partition plate fixedly arranged in the shell, a servo motor fixedly arranged on the positioning partition plate, an output end of the servo motor provided with a planetary reducer, an output end of the planetary reducer fixedly provided with a driving shaft, and an end of the driving shaft fixedly provided with a driving disc, and the driving disc is provided with a cam at the bottom.

[0010] Preferably, a through hole is arranged at the middle position of the positioning partition plate, and the output end of the servo motor extends through the positioning partition plate through the through hole.

[0011] Preferably, a connecting hole is arranged at the middle position of the driving disc, the driving shaft is connected to the driving disc through the connecting hole, the driving disc is rotatably arranged in the shell through the driving shaft, and the cam is rotatably arranged above the pressing cap through the driving disc.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] In the application, the vertical rod is driven to move downward under the stress of the pressing cap. Then, the downward movement of the vertical rod promotes the plug cover to move downward synchronously, so that the sampling port is opened. The opened sampling port allows the sewage to flow into the sampling cylinder rapidly, so that the sampling process of the sewage is completed. After the sampling is completed, the cam is controlled to be separated from the pressing cap, and the spring force promotes the vertical rod on the pressing cap to reset upward, so as to push the plug cover back to the initial position and close the sampling port.

[0014] In the application, after the air in the sampling cylinder is removed, the equipment can be immersed in the sewage. During the sinking process of the equipment, the rotation of the driving shaft is realized by controlling the start of the servo motor. The rotation of the driving shaft further drives the rotation of the driving disc, and the rotation of the driving disc further promotes the rotation of the cam. During the rotation of the cam, the pressing cap in the shell is pressed in sequence, so that the sewage at different depths is sampled. The equipment has simple structure, and only one servo motor system is needed to complete the sampling task. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2The partial structure schematic view of the utility model;

[0017] Figure 3 The sampling mechanism schematic view of the utility model;

[0018] Figure 4 The utility model Figure 3 The enlarged view of A in the middle;

[0019] Figure 5 The driving mechanism schematic view of the utility model.

[0020] The figure mark: 1, shell; 2, fixed frame; 3, mounting hole; 4, sampling mechanism; 401, sampling cylinder; 402, vertical rod; 403, drain; 404, threaded plug; 405, sealing cover; 406, air extraction hole; 407, check valve; 408, plug cover; 409, sampling port; 410, pressure cap; 411, spring; 5, driving mechanism; 501, positioning baffle; 502, servo motor; 503, drive shaft; 504, planetary reducer; 505, driving disc; 506, cam. Specific embodiments

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] As Figure 1 and Figure 2 The utility model provides a kind of convenient sampling device for sewage detection technical scheme, including shell 1, shell 1 bottom and sidewall are equipped with mounting hole 3, shell 1 top is fixedly installed with fixed frame 2, several sampling mechanisms 4 are fixedly installed in shell 1, pressure cap 410 top is equipped with a driving mechanism 5, by the cooperation of sampling mechanism 4 and driving mechanism 5, different depth sewage can be sampled quickly.

[0023] As Figure 2 , Figure 3 , Figure 4As shown, the sampling mechanism 4 includes a sampling cylinder 401 fixedly installed in the housing 1, the bottom of the sampling cylinder 401 is provided with a sampling port 409, the bottom of the sampling port 409 is provided with a plug cap 408, the plug cap 408 is fixedly installed with a vertical rod 402, the vertical rod 402 is fixedly installed with a pressure cap 410, the upper end of the vertical rod 402 is sleeved with a spring 411, the lower part of the outer side of the sampling cylinder 401 is fixedly installed with a drain port 403, the drain port 403 is provided with a threaded plug 404, the threaded plug 404 is provided with a gas extraction hole 406, the gas extraction hole 406 is provided with a one-way valve 407, the end of the gas extraction hole 406 is threaded with a sealing cap 405, the top of the sampling cylinder 401 is provided with a through hole, and the through hole is provided with a sealing ring, and the vertical rod 402 extends into the sampling cylinder 401 through the through hole at the top of the sampling cylinder 401.

[0024] Specifically, when the pressure cap 410 is pressed down, the vertical rod 402 connected thereto will move downward. With the descent of the vertical rod 402, it will further push the plug cap 408 to move downward. This series of movements leads to the opening of the sampling port 409. Once the sampling port 409 is opened, sewage can quickly flow into the sampling cylinder 401 through this opening, thereby completing the sewage sampling process. After the sampling task is completed, the cam 506 is controlled to move away from the pressure cap 410, so that the pressure cap 410 originally pressed by the cam 506 is released. After the release, the spring 411 will exert its elastic force to push the vertical rod 402 on the pressure cap 410 to return to the initial position. With the rising of the vertical rod 402, the plug cap 408 is reset, and finally the sampling port 409 is closed, ensuring the integrity of the entire sampling process and the sealing of the equipment.

[0025] As shown in Figure 2 and Figure 5 The driving mechanism 5 includes a positioning partition plate 501 fixedly installed in the housing 1, the positioning partition plate 501 is fixedly installed with a servo motor 502, the output end of the servo motor 502 is provided with a planetary reducer 504, the output end of the planetary reducer 504 is fixedly installed with a driving shaft 503, the end of the driving shaft 503 is fixedly installed with a driving disc 505, the bottom of the driving disc 505 is provided with a cam 506, the middle position of the positioning partition plate 501 is provided with a through hole, and the output end of the servo motor 502 passes through the through hole to pass through the positioning partition plate 501.

[0026] Specifically, the entire device is carefully immersed in the wastewater to be tested. As the device begins to sink, the servo motor 502 can be activated. Once activated, the servo motor 502 drives the connected drive shaft 503. As the drive shaft 503 rotates, it further drives the drive disc 505 to rotate. The rotation of the drive disc 505 causes the cam 506 to rotate as well. During its rotation, the cam 506 presses down on the pressure cap 410 inside the housing 1, thereby achieving sampling at different depths in the wastewater. The entire device can efficiently complete the sampling task through the operation of only one set of servo motors 502, greatly simplifying the operation process and improving work efficiency.

[0027] Working principle: Before use, first connect the air pump to the air extraction port 406 and use the air pump to extract the air from the sampling cylinder 401. After the air is extracted, the internal pressure of the sampling cylinder 401 will decrease. When the plug 408 is opened, the sewage can quickly enter the sampling cylinder 401 through the sampling port 409 to achieve rapid sampling. After the air in the sampling cylinder 401 is extracted, the entire device can be immersed in the sewage. During the sinking process, the servo motor 502 can be started. After the servo motor 502 is started, it will drive the drive shaft 503 to rotate. After the drive shaft 503 rotates, it will drive the drive disc 505 to rotate. After the drive disc 505 rotates, it will drive the cam 506 to rotate. During the rotation of the cam 506, it will press the pressure cap 410 in the housing 1 in sequence to sample sewage at different depths. After the cap 410 is pressed down, it will drive the vertical rod 402 to move downward. After the vertical rod 402 moves downward, it will drive the plug 408 to move downward, so that the sampling port 409 opens. After the sampling port 409 opens, the sewage will quickly enter the sampling cylinder 401 through the sampling port 409 to achieve sewage sampling. After the sampling is completed, the cam 506 can be controlled to leave the cap 410. After the cam 506 leaves the cap 410, the spring 411 will push the vertical rod 402 on the cap 410 to move upward, so that the plug 408 resets and blocks the sampling port 409.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A convenient sampling device for wastewater testing, comprising a housing (1), wherein mounting holes (3) are provided on the bottom and side walls of the housing (1), and a fixing bracket (2) is fixedly installed on the top of the housing (1), characterized in that: Several sampling mechanisms (4) are fixedly installed inside the housing (1). Each sampling mechanism (4) includes a sampling tube (401) fixedly installed inside the housing (1). The bottom of the sampling tube (401) is provided with a sampling port (409). The bottom of the sampling port (409) is provided with a plug (408). A vertical rod (402) is fixedly installed on the plug (408). A pressure cap (410) is fixedly installed on the vertical rod (402). A spring (411) is sleeved at the upper end of the vertical rod (402). A driving mechanism (5) is provided above the pressure cap (410).

2. The convenient sampling device for wastewater testing according to claim 1, characterized in that: A drain outlet (403) is fixedly installed on the lower part of the outer side of the sampling tube (401). A threaded plug (404) is provided inside the drain outlet (403). An air extraction hole (406) is opened on the threaded plug (404). A one-way valve (407) is provided inside the air extraction hole (406). A sealing cap (405) is threadedly installed at the end of the air extraction hole (406).

3. The convenient sampling device for wastewater testing according to claim 2, characterized in that: The sampling tube (401) has a through hole at the top and a sealing ring inside the through hole. The vertical rod (402) extends into the sampling tube (401) through the through hole at the top of the sampling tube (401).

4. The convenient sampling device for wastewater testing according to claim 3, characterized in that: One end of the spring (411) is connected to the top of the sampling tube (401), and the other end of the spring (411) is connected to the bottom of the pressure cap (410). The plug (408) is movably installed at the lower end of the sampling port (409) through the vertical rod (402), and a sealing ring is provided at the bottom of the sampling port (409). The drain port (403) is provided with threads, and the threaded plug (404) is connected to the drain port (403) through threads. Both the drain port (403) and the sampling port (409) extend out of the housing (1) through the mounting hole (3).

5. A convenient sampling device for wastewater testing according to claim 4, characterized in that: The drive mechanism (5) includes a positioning partition (501) fixedly installed in the housing (1). A servo motor (502) is fixedly installed on the positioning partition (501). A planetary reducer (504) is provided at the output end of the servo motor (502). A drive shaft (503) is fixedly installed at the output end of the planetary reducer (504). A drive disk (505) is fixedly installed at the end of the drive shaft (503). A cam (506) is provided at the bottom of the drive disk (505).

6. The convenient sampling device for wastewater testing according to claim 5, characterized in that: A through hole is provided in the middle of the positioning partition (501), and the output end of the servo motor (502) passes through the positioning partition (501) through the through hole.

7. A convenient sampling device for wastewater testing according to claim 6, characterized in that: The drive disk (505) has a connecting hole in the middle position. The drive shaft (503) is connected to the drive disk (505) through the connecting hole. The drive disk (505) is rotatably installed in the housing (1) through the drive shaft (503). The cam (506) is rotatably installed above the pressure cap (410) through the drive disk (505).

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