A water sample collector for sewage treatment and a method of using the same

Abstract

The application discloses a water sample collector for sewage treatment and a use method thereof, which comprises a box body, a sewage detector placed on the top of the box body, a positioning structure arranged on the outer side of the sewage detector on the top of the box body, a transmission structure arranged in the box body and used for driving the positioning structure, a receiving groove arranged on the top of the box body, the receiving groove being arranged on the outer side of the sewage detector, a swing rod arranged in the receiving groove, the swing rod being movably connected with the box body through a pin shaft, and the swing rod being arranged on the two sides of the sewage detector. The application can position the detection body of the portable collector directly placed on the top of the storage part, prevent the detection body from falling, save the operation step that the detection body needs to be completely stationary in the sampling process, save the waiting time of the operator, save time and labor, and avoid repeatedly storing the detection body in the moving process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to a water sample collector for sewage treatment and a use method thereof. BACKGROUND

[0002] Sewage treatment is a process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse, and is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering and daily life of ordinary people.

[0003] For sewage treatment plants, mixed samples can be used for comprehensive analysis of incoming water or outgoing water quality. When collecting mixed samples, equal amounts of water samples can be collected at equal time intervals and mixed, or samples can be collected and mixed at different times according to a certain proportion of sewage flow. The above two methods are suitable for stable and variable sewage flow conditions, and water samples can be collected manually or by installing an automatic sampler at an important sampling location.

[0004] For example, the patent number is 202021301503.X, and the patent name is portable water sample collector. The portable water sample collector includes a water sample storage part and a sampling lifting part. The water sample storage part includes a barrel, a handle and a plug. The handle is rotatably installed outside the barrel. The barrel bottom is provided with a water inlet. The plug is movably connected inside the water inlet. The sampling lifting part includes a take-up reel, a fixed ring and a wire rope. The fixed ring is fixedly installed below the take-up reel. The take-up reel and the fixed ring are both sleeved outside the barrel. The fixed ring is externally screwed with an adjusting bolt. After the water sample is sampled, the wire rope in the take-up reel is wound, the take-up reel and the fixed ring are sleeved outside the barrel, the adjusting bolt is tightened, the take-up reel is fixed outside the barrel, and the barrel and the take-up reel are stored together, which is convenient to carry and use.

[0005] However, the detection machine body of the existing portable collector is generally placed directly on the top of the storage part. In order to prevent the detection machine body from falling, the detection machine body needs to be completely stationary during sampling. The operator needs to spend a lot of time waiting, which is time-consuming and laborious. Moreover, the detection machine body needs to be repeatedly stored during movement.

[0006] Therefore, it is necessary to design and create a water sample collector for sewage treatment and a use method thereof. SUMMARY

[0007] To solve the problems in the background art, the present application aims to provide a water sample collector for sewage treatment and a method for using the same, which has the advantage of positioning and storing a detection machine, solves the problem that the detection machine of the existing portable collector is generally placed directly on the top of the storage part, and in order to prevent the detection machine from falling, the detection machine needs to be completely stationary during the sampling process, and the operator needs to spend a lot of time waiting, which is time-consuming and laborious, and the detection machine needs to be repeatedly stored during the movement.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a water sample collector for sewage treatment and a method for using the same, comprising a box body;

[0009] A sewage detector is placed on the top of the box body.

[0010] The top of the box body is provided with a positioning structure outside the sewage detector.

[0011] The inside of the box body is provided with a transmission structure for driving the positioning structure.

[0012] The positioning structure comprises a storage slot opened in the top of the box body, which is arranged outside the sewage detector, the inside of the storage slot is provided with a swing rod, the swing rod is movably connected with the box body through a pin shaft, the swing rod is located on both sides of the sewage detector, the side of the swing rod away from the box body extends to the left side of the sewage detector, the inside of the swing rod is fixedly connected with a pressing rod, the outer surface of the pressing rod is in contact with the left side of the sewage detector, the top of the box body is fixedly connected with a support plate, the support plate is located on the right side of the sewage detector, the right side of the sewage detector is in contact with the surface of the support plate, and the transmission structure can drive the swing rod to swing.

[0013] As a preferred embodiment of the present application, the transmission structure comprises a screw rod movably connected in the inside of the box body through a bearing, a rotating wheel is arranged on the right side of the box body, the right end of the screw rod penetrates through the box body and extends to the right side of the box body, the right end of the screw rod and the left side of the rotating wheel are fixedly connected, a sleeve is threadedly connected to the surface of the screw rod, a sleeve plate is fixedly connected to the bottom of the swing rod, the side of the sleeve plate away from the swing rod penetrates through the storage slot and extends to the inside of the box body, the sleeve plate is located outside the sleeve, sliding rods are fixedly connected to the front and back surfaces of the sleeve, the side of the sliding rods away from the sleeve extends to the inside of the sleeve plate, and the sleeve plate is slidably connected with the sliding rods.

[0014] As a preferred embodiment of the present application, a guide rod is fixedly connected in the inside of the box body, the guide rod is located on the top of the screw rod, the sleeve is sleeved on the surface of the guide rod, and the sleeve and the guide rod are slidably connected.

[0015] As preferred of the present application, the surface of the sleeve plate is fixedly connected with a reinforcing rib, one end of the reinforcing rib away from the sleeve plate penetrates through the receiving slot and extends to the top of the box body, the reinforcing rib is located at the bottom of the swing rod, and the reinforcing rib is fixedly connected with the swing rod.

[0016] As preferred of the present application, the top of the box body is hingedly connected with a protective cover, the protective cover is sleeved on the surface of the sewage detector, the swing rod and the pressing rod are located in the interior of the protective cover, the bottom of the protective cover is fixedly connected with a rubber ring, one side of the rubber ring away from the protective cover is in contact with the top of the box body, and the rubber ring has elasticity.

[0017] As preferred of the present application, the right side of the box body is provided with a pressing plate, the pressing plate is sleeved on the surface of the screw rod and is threadedly connected with the screw rod, one end of the pressing plate away from the screw rod extends to the top of the box body, and the pressing plate is movably connected with a roller through a pin shaft at one end away from the screw rod, and the outer surface of the roller is in contact with the right side of the protective cover.

[0018] As preferred of the present application, the top of the pressing plate is provided with a limiting slot, the top of the pressing plate is provided with a bolt, the bottom end of the bolt penetrates through the limiting slot and extends to the interior of the box body, the box body is threadedly connected with the bolt, and the limiting slot is slidably connected with the bolt.

[0019] A water sample collector for sewage treatment and a use method thereof, comprising the following steps:

[0020] S1: first, the sewage detector stored in the interior of the box body is moved to the top of the box body, and the sewage detector needs to be located at the inner side of the swing rod;

[0021] S2: when the sewage detector is placed, the user rotates the rotating wheel, the rotating wheel drives the screw rod to rotate, the screw rod pushes the screw sleeve to move horizontally through the thread, the screw sleeve drives the sliding rod to slide in the interior of the sleeve plate in the moving process, the sleeve plate is extruded and drives the swing rod to swing with the pin shaft in the receiving slot as the axis, when the swing rod carrying the pressing rod moves from the interior of the receiving slot to the left side of the sewage detector, the pressing rod moving in a circular arc line can be in contact with the sewage detector and push the sewage detector to move horizontally, when the right side of the sewage detector is in close contact with the supporting plate, the effect of extruding and positioning the sewage detector is achieved;

[0022] S3: in the rotating process of the screw rod, the screw rod can push the pressing plate to move to the left side synchronously through the thread, the pressing plate can extrude the protective cover in the moving process, so that the protective cover swings with the hinge as the axis, when the protective cover is sleeved on the surface of the sewage detector and the rubber ring at the bottom is in contact with the top of the box body, the effect of shielding and protecting the sewage detector is achieved, and the user can move the sewage detector by pushing and pulling the box body during detection, thereby saving a lot of time.

[0023] Compared with the prior art, the present application has the following advantages:

[0024] 1、The present application pushes the swing lever to swing around the pin shaft inside the storage slot, when the swing lever carrying the pressing rod moves from the inside of the storage slot to the left side of the sewage detector, the pressing rod moving in a circular arc line can contact and push the sewage detector to move horizontally, when the right side of the sewage detector is in close contact with the supporting plate, the effect of extruding and positioning the sewage detector is achieved, the present application can position the detection machine body of the existing portable collector placed directly on the top of the storage part, can prevent the detection machine body from falling, saves the operation step of completely stationary detection machine body during sampling process, saves the waiting time of the operator, saves time and effort, and avoids the need to repeatedly store the detection machine body during movement.

[0025] 2、The present application uses the screw to push the sleeve horizontally, the sleeve moves during the sliding process, the sleeve plate is extruded and drives the swing lever to swing around the pin shaft inside the storage slot, which can improve the operation convenience of the swing lever and reduce the occupied space of the transmission structure.

[0026] 3、The present application sets the guide rod to limit the sleeve, avoiding the inclination of the sleeve during movement.

[0027] 4、The present application sets the reinforcing rib to support the swing lever, which can improve the connection stability of the swing lever and the sleeve plate, preventing the connection between the two from breaking.

[0028] 5、The present application sets the protective cover to improve the safety of the box body, reduce the contact area between the sewage detector and the external environment, and prevent the sewage detector from being damaged by collision during movement.

[0029] 6、The present application sets the extrusion plate and the roller to extrude and fix the protective cover using the power of the screw, preventing the displacement of the protective cover after closing, and improving the operation convenience of the protective cover.

[0030] 7、The present application sets the limiting groove and the bolt to limit the extrusion plate, preventing the inclination of the extrusion plate during movement. DETAILED DESCRIPTION

[0031] Figure 1 The present application is a structural schematic diagram;

[0032] Figure 2 The present application is a partial structure three-dimensional schematic diagram;

[0033] Figure 3 The present application is a main view structure partial cross-sectional schematic diagram;

[0034] Figure 4 This is a schematic cross-sectional view of the main structure of the present invention;

[0035] Figure 5 This is a partial structural diagram of the present invention;

[0036] Figure 6 For the present invention Figure 4 Enlarged structural diagram at point A in the middle.

[0037] In the diagram: 1. Box body; 2. Wastewater detector; 3. Positioning structure; 4. Transmission structure; 5. Storage slot; 6. Swing rod; 7. Pressure rod; 8. Support plate; 9. Screw; 10. Rotary wheel; 11. Screw sleeve; 12. Sleeve plate; 13. Slide rod; 14. Guide rod; 15. Reinforcing rib; 16. Protective cover; 17. Rubber ring; 18. Extrusion plate; 19. Roller; 20. Limiting groove; 21. Bolt. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figures 1 to 6 As shown, the present invention provides a wastewater treatment water sampler and its usage method, comprising a housing 1;

[0040] Wastewater detector 2 is placed on top of housing 1;

[0041] The top of the housing 1 is equipped with a positioning structure 3 located outside the sewage detector 2;

[0042] The housing 1 is equipped with a transmission structure 4 for driving the positioning structure 3;

[0043] The positioning structure 3 includes a storage groove 5 on the top of the housing 1, which surrounds the outside of the wastewater detector 2. A swing rod 6 is installed inside the storage groove 5. The swing rod 6 is movably connected to the housing 1 by a pin. The swing rod 6 is located on both sides of the wastewater detector 2. The side of the swing rod 6 away from the housing 1 extends to the left side of the wastewater detector 2. A pressure rod 7 is fixedly connected to the inner side of the swing rod 6. The outer surface of the pressure rod 7 contacts the left side of the wastewater detector 2. A support plate 8 is fixedly connected to the top of the housing 1. The support plate 8 is located on the right side of the wastewater detector 2. The right side of the wastewater detector 2 contacts the surface of the support plate 8. The transmission structure 4 can drive the swing rod 6 to swing.

[0044] refer to Figure 4The transmission structure 4 comprises a screw rod 9 movably connected in the box body 1 through a bearing, a runner 10 is arranged at the right side of the box body 1, the right end of the screw rod 9 penetrates through the box body 1 and extends to the right side of the box body 1, the right end of the screw rod 9 is fixedly connected with the left side of the runner 10, a sleeve 11 is threadedly connected with the surface of the screw rod 9, a sleeve plate 12 is fixedly connected with the bottom of the swing rod 6, the side, away from the swing rod 6, of the sleeve plate 12 penetrates through the receiving groove 5 and extends to the inside of the box body 1, the sleeve plate 12 is located at the outside of the sleeve 11, the front face and the back face of the sleeve 11 are fixedly connected with sliding rods 13, and the side, away from the sleeve 11, of the sliding rods 13 extends to the inside of the sleeve plate 12, and the sleeve plate 12 is slidably connected with the sliding rods 13.

[0045] As a technical optimization scheme of the present application, the screw rod 9 is used to horizontally move the sleeve 11 through threads, the sleeve 11 drives the sliding rods 13 to slide in the sleeve plate 12 during the movement of the sleeve 11, the sleeve plate 12 is extruded and drives the swing rod 6 to swing around the pin shaft in the receiving groove 5, so that the operation convenience of the swing rod 6 is improved, and the occupied space of the transmission structure 4 is reduced.

[0046] Reference Figure 4 The inside of the box body 1 is fixedly connected with a guide rod 14, the guide rod 14 is located at the top of the screw rod 9, and the sleeve 11 is sleeved on the surface of the guide rod 14, so that the sleeve 11 is slidably connected with the guide rod 14.

[0047] As a technical optimization scheme of the present application, the guide rod 14 is arranged to limit the sleeve 11, so that the inclination of the sleeve 11 during the movement of the sleeve 11 is avoided.

[0048] Reference Figure 5 The surface of the sleeve plate 12 is fixedly connected with a reinforcing rib 15, the end, away from the sleeve plate 12, of the reinforcing rib 15 penetrates through the receiving groove 5 and extends to the top of the box body 1, the reinforcing rib 15 is located at the bottom of the swing rod 6, and the reinforcing rib 15 is fixedly connected with the swing rod 6.

[0049] As a technical optimization scheme of the present application, the reinforcing rib 15 is arranged to support the swing rod 6, so that the connection stability of the swing rod 6 and the sleeve plate 12 is improved, and the breakage of the connection between the swing rod 6 and the sleeve plate 12 is avoided.

[0050] Reference Figure 4 The top of the box body 1 is hingedly connected with a protective cover 16, the protective cover 16 is sleeved on the surface of the sewage detector 2, the swing rod 6 and the pressing rod 7 are located in the inside of the protective cover 16, the bottom of the protective cover 16 is fixedly connected with a rubber ring 17, the side, away from the protective cover 16, of the rubber ring 17 is in contact with the top of the box body 1, and the rubber ring 17 is elastic.

[0051] As a technical optimization scheme of the present application, by setting the protective cover 16, the safety of the box body 1 can be improved, the contact area between the sewage detector 2 and the external environment is reduced, and the collision and damage of the sewage detector 2 during movement are prevented.

[0052] Reference Figure 4 The right side of the box body 1 is provided with an extrusion plate 18 which is sleeved on the surface of the screw rod 9 and is threadedly connected with the screw rod 9. The end of the extrusion plate 18 away from the screw rod 9 extends to the top of the box body 1. The end of the extrusion plate 18 away from the screw rod 9 is movably connected with a roller 19 through a pin shaft. The outer surface of the roller 19 is in contact with the right side of the protective cover 16.

[0053] As a technical optimization scheme of the present application, by setting the extrusion plate 18 and the roller 19, the protective cover 16 can be extruded and fixed by the power of the screw rod 9, preventing the displacement of the protective cover 16 after being closed, and improving the operation convenience of the protective cover 16.

[0054] Reference Figure 1 A limiting groove 20 is formed in the top of the extrusion plate 18. A bolt 21 is arranged on the top of the extrusion plate 18. The bottom end of the bolt 21 penetrates through the limiting groove 20 and extends into the inside of the box body 1. The box body 1 is threadedly connected with the bolt 21. The limiting groove 20 is slidably connected with the bolt 21.

[0055] As a technical optimization scheme of the present application, by setting the limiting groove 20 and the bolt 21, the extrusion plate 18 can be limited, preventing the inclination of the extrusion plate 18 during movement.

[0056] Reference Figure 1 A sewage treatment water sample collector and its using method, comprising the following steps:

[0057] S1: First, move the sewage detector 2 stored in the inside of the box body 1 to the top of the box body 1, and the sewage detector 2 needs to be located on the inside of the swing rod 6;

[0058] S2: When the sewage detector 2 is placed, the user rotates the rotating wheel 10. The rotating wheel 10 drives the screw rod 9 to rotate. The screw rod 9 pushes the screw sleeve 11 to move horizontally by using the thread. The screw sleeve 11 drives the slide rod 13 to slide in the inside of the sleeve plate 12 during movement. The sleeve plate 12 is extruded and drives the swing rod 6 to swing around the pin shaft in the inside of the receiving groove 5. When the swing rod 6 carrying the pressing rod 7 moves from the inside of the receiving groove 5 to the left side of the sewage detector 2, the pressing rod 7 moving in a circular arc line can contact and push the sewage detector 2 to move horizontally. When the right side of the sewage detector 2 is in close contact with the supporting plate 8, the effect of extruding and positioning the sewage detector 2 is achieved;

[0059] S3: During the rotation of the screw rod 9, the screw rod 9 can push the extrusion plate 18 to move synchronously to the left side by using the thread, and the extrusion plate 18 can extrude the protective cover 16 during the movement, so that the protective cover 16 swings around the hinge as the axis, and when the protective cover 16 is sleeved on the surface of the sewage detector 2 and the bottom rubber ring 17 is in contact with the top of the box body 1, the effect of shielding and protecting the sewage detector 2 is achieved, and the user can carry the sewage detector 2 by pushing and pulling the box body 1 during the detection process, thereby saving a lot of time.

[0060] The working principle and use process of the present application are as follows: during use, first, the sewage detector 2 stored in the box body 1 is moved to the top of the box body 1, and the sewage detector 2 needs to be located on the inside of the swing rod 6, when the sewage detector 2 is placed, the user rotates the rotating wheel 10, the rotating wheel 10 drives the screw rod 9 to rotate, the screw rod 9 pushes the screw sleeve 11 to move horizontally by using the thread, the screw sleeve 11 drives the slide rod 13 to slide in the sleeve plate 12 during the movement, the sleeve plate 12 is extruded and drives the swing rod 6 to swing around the pin shaft in the receiving groove 5 as the axis, when the swing rod 6 carrying the pressing rod 7 moves from the inside of the receiving groove 5 to the left side of the sewage detector 2, the pressing rod 7 moving in a circular arc line can contact and push the sewage detector 2 to move horizontally, when the right side of the sewage detector 2 is in close contact with the supporting plate 8, the effect of extruding and positioning the sewage detector 2 is achieved, during the rotation of the screw rod 9, the screw rod 9 can push the extrusion plate 18 to move synchronously to the left side by using the thread, and the extrusion plate 18 can extrude the protective cover 16 during the movement, so that the protective cover 16 swings around the hinge as the axis, and when the protective cover 16 is sleeved on the surface of the sewage detector 2 and the bottom rubber ring 17 is in contact with the top of the box body 1, the effect of shielding and protecting the sewage detector 2 is achieved, and the user can carry the sewage detector 2 by pushing and pulling the box body 1 during the detection process, thereby saving a lot of time.

[0061] In summary: the water sample collector for sewage treatment and the use method thereof, by pushing the swing rod 6 to swing around the pin shaft in the receiving groove 5 as the axis, when the swing rod 6 carrying the pressing rod 7 moves from the inside of the receiving groove 5 to the left side of the sewage detector 2, the pressing rod 7 moving in a circular arc line can contact and push the sewage detector 2 to move horizontally, when the right side of the sewage detector 2 is in close contact with the supporting plate 8, the effect of extruding and positioning the sewage detector 2 is achieved, the present application can position the detection machine body of the existing portable collector directly placed on the top of the storage part, can prevent the detection machine body from falling, saves the operation step that the detection machine body needs to be completely stationary during the sampling process, saves the waiting time of the operator, saves time and effort, and avoids the need to repeatedly store the detection machine body during the movement.

[0062] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0063] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment water sampler, comprising a housing (1); Wastewater detector (2) placed on top of box (1); Its features are: The top of the box (1) is provided with a positioning structure (3) located outside the sewage detector (2); The housing (1) is equipped with a transmission structure (4) for driving the positioning structure (3). The positioning structure (3) includes a storage slot (5) on the top of the housing (1), the storage slot (5) is arranged around the outside of the sewage detector (2), and a swing rod (6) is provided inside the storage slot (5). The swing rod (6) is movably connected to the housing (1) by a pin. The swing rod (6) is located on both sides of the sewage detector (2). The side of the swing rod (6) away from the housing (1) extends to the left side of the sewage detector (2). A pressure rod (7) is fixedly connected to the inner side of the swing rod (6). The outer surface of the pressure rod (7) contacts the left side of the sewage detector (2). A support plate (8) is fixedly connected to the top of the housing (1). The support plate (8) is located on the right side of the sewage detector (2). 2) The right side of the support plate (8) is in contact with the surface of the transmission structure (4), which can drive the swing rod (6) to swing. The transmission structure (4) includes a screw (9) that is movably connected to the inside of the housing (1) through a bearing. A rotating wheel (10) is provided on the right side of the housing (1). The right end of the screw (9) passes through the housing (1) and extends to the right side of the housing (1). The right end of the screw (9) is fixedly connected to the left side of the rotating wheel (10). A screw sleeve (11) is threadedly connected to the surface of the screw (9). A sleeve plate (12) is fixedly connected to the bottom of the swing rod (6). The side of the sleeve plate (12) away from the swing rod (6) passes through the storage groove (5) and extends into the inside of the housing (1). The sleeve plate (12) is located outside the screw sleeve (11). The front and back sides of the threaded sleeve (11) are fixedly connected to a sliding rod (13). The side of the sliding rod (13) away from the threaded sleeve (11) extends into the interior of the sleeve plate (12). The sleeve plate (12) and the sliding rod (13) are slidably connected. The interior of the housing (1) is fixedly connected to a guide rod (14). The guide rod (14) is located at the top of the screw (9). The threaded sleeve (11) is fitted onto the surface of the guide rod (14). The threaded sleeve (11) and the guide rod (14) are slidably connected. The surface of the sleeve plate (12) is fixedly connected to a reinforcing rib (15). The end of the reinforcing rib (15) away from the sleeve plate (12) passes through the storage groove (5) and extends to the top of the housing (1). The reinforcing rib (15) is located at the bottom of the swing rod (6). The reinforcing rib (15) is fixedly connected to the swing rod (6). A protective cover (16) is hinged to the top of the housing (1). The protective cover (16) is fitted onto the surface of the sewage detector (2). The swing rod (6) and the pressure rod (7) are both located inside the protective cover (16). A rubber ring (17) is fixedly connected to the bottom of the protective cover (16). The side of the rubber ring (17) away from the protective cover (16) contacts the top of the housing (1). The rubber ring (17) is elastic. An extrusion plate (18) is provided on the right side of the housing (1). The extrusion plate (18) is fitted onto the surface of the screw (9) and threadedly connected to the screw (9). The end of the extrusion plate (18) away from the screw (9) extends to the top of the housing (1).The end of the extrusion plate (18) away from the screw (9) is movably connected to a roller (19) via a pin, and the outer surface of the roller (19) contacts the right side of the protective cover (16).

2. The wastewater treatment water sampler according to claim 1, characterized in that: The top of the extrusion plate (18) has a limiting groove (20), and the top of the extrusion plate (18) is provided with a bolt (21). The bottom end of the bolt (21) passes through the limiting groove (20) and extends into the interior of the box (1). The box (1) is threadedly connected to the bolt (21), and the limiting groove (20) is slidably connected to the bolt (21).

3. The method of using a wastewater treatment water sampler according to any one of the preceding claims, characterized in that: Includes the following steps: S1: First, move the sewage detector (2) stored inside the box (1) to the top of the box (1), and the sewage detector (2) needs to be located inside the swing arm (6); S2: When the sewage detector (2) is placed, the user rotates the wheel (10), the wheel (10) drives the screw (9) to rotate, the screw (9) uses the thread to push the screw sleeve (11) to move horizontally, the screw sleeve (11) drives the slide rod (13) to slide inside the sleeve plate (12) during the movement, the sleeve plate (12) is squeezed and drives the swing rod (6) to swing around the pin inside the storage groove (5) as the axis. When the swing rod (6) carries the pressure rod (7) from the inside of the storage groove (5) to the left side of the sewage detector (2), the pressure rod (7) moving in a circular arc can contact the sewage detector (2) and push the sewage detector (2) to move horizontally. When the right side of the sewage detector (2) is in close contact with the support plate (8), the effect of squeezing and positioning the sewage detector (2) is achieved. S3: During the rotation of the screw (9), the screw (9) can push the extrusion plate (18) to move synchronously to the left using the thread. During the movement of the extrusion plate (18), it can extrude the protective cover (16), causing the protective cover (16) to swing around the hinge as the axis. When the protective cover (16) is fitted on the surface of the sewage detector (2) and the bottom rubber ring (17) contacts the top of the box (1), it achieves the effect of shielding and protecting the sewage detector (2). Users can carry the sewage detector (2) for mobile monitoring by pushing and pulling the box (1) during the detection process, saving a lot of time.

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