A sewage sampler

Abstract

The utility model relates to sewage sampling technology field especially sewage sampler. Including sealed cavity, handheld piece, water storage cavity, first connecting structure, first suction assembly and second suction assembly, handheld piece is used for the convenient operator handheld sampling, water storage cavity is detachably connected with sealed cavity through first connecting structure, and it is convenient for subsequent cleaning or replacement, first suction assembly is used for automatic pumping sewage into water storage cavity, second suction assembly is used for manually driven pumping sewage into water storage cavity. The utility model first and second suction assembly manual and automatic combination, can nimblely cope with different scene sewage sampling demand, through manual and automatic combination, enhanced the sewage sampler applicability and flexibility, promoted its work efficiency under complex environment, through first connecting structure, realized the firm and detachable connection between water storage cavity and sealed cavity, the cleaning and maintenance work after sampling are convenient, improved the overall service life and practicality of sewage sampler.

Description

Technical Field

[0001] This utility model relates to the field of wastewater sampling technology, and in particular to a wastewater sampler. Background Technology

[0002] Wastewater refers to polluted domestic and industrial wastewater, including domestic sewage, industrial wastewater, and initial rainwater, containing pollutants such as pathogens and oxygen-consuming substances. It is discharged from residences, government offices, and other locations, mixing with groundwater to form a waste-laden liquid. Wastewater samplers are needed to test and treat wastewater, accurately obtaining samples to understand key information such as wastewater composition and pollution levels. This information is crucial for providing a reliable basis for subsequent wastewater treatment plan development and environmental assessments.

[0003] Patent document CN221528063U discloses a novel automated wastewater sampler, including a main body component, a protective shell, a sampling device, a funnel, and a water inlet. The sampling device is disposed within the protective shell, the funnel is fixed within the protective shell, and the water inlet is fixed to the bottom of the funnel. A cleaning component is also included on the main body component, comprising a cleaning element, a filter element, and a limiting element. The cleaning element is disposed on the protective shell, the filter element is disposed on one side of the protective shell, and the limiting element is disposed within the protective shell. The advantages of this invention are: the cleaning element effectively cleans the sampling device, removing bacteria and impurities remaining from the previous filtration; the filter element filters the water flow used to clean the sampling device, facilitating water circulation; and the limiting element ends the current cleaning cycle, allowing for the start of the next cleaning cycle.

[0004] When using the above-mentioned technologies, the following technical problems were found in the existing technologies: Although automation improves the efficiency of sewage sampling, when a part malfunctions, such as sensor failure or program error, the entire sampling process may be interrupted, making it impossible to obtain sewage samples in a timely manner, which brings inconvenience to sewage detection and treatment. In addition, when regular cleaning and maintenance are required, the inability to easily disassemble the water storage chamber makes the cleaning work relatively complex and time-consuming, increasing the difficulty and workload of maintenance. To address these issues, a sewage sampler is designed to provide an alternative technical solution. Utility Model Content

[0005] Therefore, it is necessary to provide a wastewater sampler to address the aforementioned technical problems, thereby resolving the issues of easy sampling interruption and difficult cleaning and maintenance in the existing technology.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A wastewater sampler includes a sealed cavity and a handheld device connected to the sealed cavity, and further includes:

[0008] A water storage cavity is detachably connected to the sealed cavity via a first connecting structure. The first connecting structure includes a snap-fit ​​portion that allows the water storage cavity to contact the sealed cavity, and a set of locking fasteners that prevent the water storage cavity from detaching from the sealed cavity.

[0009] The first suction assembly includes an automatic suction unit capable of drawing wastewater from the sealed cavity into the water storage cavity, and a control terminal disposed on the handheld component and capable of activating the automatic suction unit; and

[0010] The second suction assembly includes a one-way inlet valve disposed on the water storage chamber, a passive suction unit capable of drawing sewage from the one-way inlet valve into the water storage chamber, and a manual drive unit capable of moving the passive suction unit within the water storage chamber.

[0011] As a preferred embodiment of the sewage sampler provided by this utility model, a set of locking components each includes a locking hook that fixes the bottom of the sealing cavity, and a pressing body that is connected near the top opening of the water storage cavity and can be pressed and engaged with the locking hook.

[0012] The snap-fit ​​part includes a flange fixed to the bottom of the sealing cavity and capable of being fitted into the sealing cavity, a set of slots opposite to the flange, and a snap strip fixed to the inside of the opening of the sealing cavity and capable of being inserted into the slots, thereby making the snap-fit ​​body vertically aligned with the hook.

[0013] As a preferred embodiment of the wastewater sampler provided by this utility model, the automatic suction unit includes a pump body fixed in the sealed cavity and having its outlet extending out of the sealed cavity, and an inlet pipe having one end inserted into the sealed cavity to communicate with the pump body inlet and the other end extending toward the bottom of the water storage cavity.

[0014] In a preferred embodiment of the wastewater sampler provided by this utility model, the handheld component includes a vertical rod fixed to the top of the sealed cavity and a handle fixed to the top of the vertical rod.

[0015] In a preferred embodiment of the wastewater sampler provided by this utility model, the control terminal is a control switch located on the handle and connected to the pump body.

[0016] The first suction assembly also includes a battery fixed in the sealed cavity and electrically connected to the pump body.

[0017] As a preferred embodiment of the sewage sampler provided by this utility model, the passive suction part includes a plug that is adapted to seal the water storage cavity, and a connecting rod with one end fixed to the plug and the other end passing through the sealing cavity and movable in the upright.

[0018] The manual drive unit includes a set of grips that can slide outside the upright through a second connecting structure. When sliding on the upright, the second connecting structure can drive the plug to move into the water storage chamber through the connecting rods.

[0019] As a preferred embodiment of the sewage sampler provided by this utility model, the second connecting structure includes a set of grooves opened on both sides of the upright and communicating with the path for the connecting rod to move inside the upright, a set of sliders fixed to the connecting rod and sliding in the grooves, and collars sleeved on the outside of the upright and fixed to the sliders and the handle respectively.

[0020] As a preferred embodiment of the wastewater sampler provided by this utility model, it further includes a water outlet valve for discharging wastewater from the water storage chamber, and the water outlet valve is connected to a position above the initial contact point of the plug with the bottom of the water storage chamber.

[0021] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0022] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0023] This utility model provides a wastewater sampler that combines manual and automatic operation of the first and second suction components, enabling flexible responses to wastewater sampling needs in various scenarios. Specifically, when rapid sampling is required or the sampling point is conveniently located, the automatic suction unit can be activated via the control terminal, using the first suction component to quickly draw wastewater from the sealed chamber into the storage chamber, improving sampling efficiency. In special environments, such as when power supply is inconvenient or more precise control of the sampling volume is required, the passive suction unit can be moved by the manual drive unit, in conjunction with a one-way inlet valve, to passively draw in wastewater, ensuring the accuracy and reliability of the sampling. By combining manual and automatic operation, the applicability and flexibility of the wastewater sampler are enhanced, and its working efficiency in various complex environments is significantly improved.

[0024] This utility model provides a wastewater sampler that achieves a stable and detachable connection between the water storage chamber and the sealing chamber through a first connecting structure. Specifically, the snap-fit ​​part ensures that the water storage chamber fits tightly against the sealing chamber during connection, effectively preventing wastewater leakage during the sampling process. A set of locking fasteners further enhances the stability of the connection, ensuring that the water storage chamber will not accidentally detach from the sealing chamber even when the sampler is subjected to external impact or vibration. This ensures the continuity and accuracy of the sampling process and facilitates post-sampling cleaning and maintenance, thereby improving the overall service life and practicality of the wastewater sampler. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of a wastewater sampler according to the present invention;

[0027] Figure 2 This is a schematic diagram of the first connection structure of a sewage sampler according to the present invention;

[0028] Figure 3 This is a schematic diagram of the automatic suction structure of the first suction component of a sewage sampler according to the present invention;

[0029] Figure 4 This is a structural schematic diagram of the handheld component and the control end of the first suction assembly of a sewage sampler according to the present invention;

[0030] Figure 5 This is a schematic diagram of the overall structure of the second suction component of a sewage sampler according to the present invention.

[0031] In the diagram: 1. Sealed cavity; 2. Handheld component; 21. Upright pole; 22. Handle; 3. Water storage cavity; 4. First connecting structure; 41. Snap-fit ​​part; 411. Flange; 412. Slot; 413. Clip; 42. Locking fastener; 421. Locking hook; 422. Press-fit body; 5. First suction assembly; 51. Automatic suction part; 511. Pump body; 512. Inlet pipe; 52. Control end; 521. Control switch; 53. Battery; 6. Second suction assembly; 61. One-way inlet valve; 62. Passive suction part; 621. Plug; 622. Connecting rod; 7. Manual drive part; 71. Second connecting structure; 711. Slide groove; 712. Slider; 713. Collar; 72. Handle; 8. Outlet valve. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0034] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] like Figure 1 As shown, this type of wastewater sampler includes a sealed cavity 1, a handheld component 2, a water storage cavity 3, a first connecting structure 4, a first suction assembly 5, and a second suction assembly 6; wherein the sealed cavity 1 provides a sealed environment for the entire sampler, ensuring that the control part of the first suction assembly 5 is not invaded by wastewater during the sampling process;

[0037] The handheld component 2 is connected to the sealed cavity 1, making it convenient for operators to hold and perform sampling operations; the water storage cavity 3 is detachably connected to the sealed cavity 1 through the first connecting structure 4. This detachable design facilitates timely cleaning or replacement of the water storage cavity 3 after sampling.

[0038] The first suction assembly 5 automatically pumps wastewater into the storage chamber 3, improving sampling efficiency and saving operators' time and effort. The second suction assembly 6, on the other hand, is manually driven to pump wastewater into the storage chamber 3, providing operators with another flexible sampling option. In practical use, operators can choose to use either the first suction assembly 5 or the second suction assembly 6 for wastewater sampling based on site conditions, thus better adapting to sampling needs in different environments. For example, in situations where power supply is limited or more precise control of the sampling volume is required, the manually driven second suction assembly 6 demonstrates its unique advantages. Furthermore, the coexistence of the two suction assemblies greatly enhances the applicability and reliability of the wastewater sampler, ensuring the smooth progress of sampling work.

[0039] like Figure 2 As shown, and refer to Figure 1 The first connecting structure 4 further includes a snap-fit ​​part 41 and a locking element 42; specifically, the snap-fit ​​part 41 is provided at the interface of the sealing cavity 1, and its shape matches the corresponding part at the bottom of the water storage cavity 3. When the water storage cavity 3 is installed on the sealing cavity 1, the snap-fit ​​part 41 can accurately align and embed into the corresponding position of the water storage cavity 3 to achieve preliminary positioning and connection.

[0040] The locking fasteners 42 are distributed around the interface of the sealing cavity 1. After the water storage cavity 3 is initially connected to the sealing cavity 1 through the snap-fit ​​part 41, the operator can manually operate the locking fasteners 42 to fasten them onto the sealing cavity 1, thereby ensuring that the water storage cavity 3 is firmly connected to the sealing cavity 1 and will not come off during use. This setting not only ensures the convenience of connection, but also ensures the reliability of connection, and can be quickly disassembled when cleaning is required.

[0041] In some embodiments, as shown in the figure, each set of locking components 42 further includes a locking hook 421 and a pressing body 422; specifically, the locking hook 421 is fixed at the bottom periphery of the sealing cavity 1, and its shape is hook-shaped, which facilitates accurate pressing and engagement with the pressing body 422.

[0042] The snap-fit ​​body 422 is flexibly connected near the top opening of the water storage cavity 3. Its position allows the operator to easily access and operate it when installing or removing the water storage cavity 3. When it is necessary to securely connect the water storage cavity 3 to the sealing cavity 1, the operator only needs to align the snap-fit ​​body 422 with the locking hook 421 and apply a certain pressure, and the two will be tightly pressed together to form a stable connection structure. It should be noted that the specific snap-fit ​​body 422 is described in the "locking" fastening part of the prior art, and will not be elaborated further here.

[0043] The snap-fit ​​part 41 further includes a flange 411, a set of snap-fit ​​grooves 412 and a set of snap-fit ​​strips 413; specifically, the flange 411 serves as the basic structure of the snap-fit ​​part 41, and is firmly fixed at the bottom of the sealing cavity 1, providing a stable support point for the entire snap-fit ​​process.

[0044] A set of slots 412 are formed opposite to the flange 411, allowing the water storage cavity 3 to be accurately positioned during fitting and ensuring that the locking strip 413 can be smoothly inserted. A set of locking strips 413 are fixed inside the opening of the water storage cavity 3, so that when the water storage cavity 3 is fitted onto the flange 411, it can be accurately inserted into the slots 412. In this process, the locking strips 413 not only serve a positioning function but also ensure that the snap fastener 422 is vertically aligned with the locking hook 421, providing a connection basis for subsequent locking operations.

[0045] like Figure 3 As shown, and refer to Figure 1 The first suction component 5 further includes an automatic suction unit 51 and a control terminal 52. Specifically, the automatic suction unit 51 can be a pump structure, which can quickly and stably pump sewage into the water storage chamber 3 in a short time. The control terminal 52 is cleverly set on the handheld part 2. The operator only needs to operate the control terminal 52 to easily start or stop the operation of the automatic suction unit 51, which greatly facilitates the operation process and improves the efficiency of sewage sampling.

[0046] In some embodiments, as shown in the figure, the automatic suction unit 51 further includes a pump body 511, a water inlet pipe 512, and a battery 53; specifically, the pump body 511 is fixed in the sealed cavity 1, and its outlet extends out of the sealed cavity 1 to discharge sewage into the water storage cavity 3; one end of the water inlet pipe 512 is inserted into the sealed cavity 1 and is tightly connected to the inlet of the pump body 511 to ensure that sewage can smoothly enter the pump body 511, and the other end extends towards the bottom of the water storage cavity 3 so as to fully suction the sewage at the bottom of the water storage cavity 3;

[0047] The battery 53 is also fixed inside the sealed cavity 1 and electrically connected to the pump body 511, providing a stable power supply to the pump body 511 and ensuring that the automatic suction unit 51 can work continuously and stably.

[0048] like Figure 4 As shown, and refer to Figure 3 The handheld component 2 further includes a pole 21 and a handle 22; specifically, the pole 21 is vertically fixed to the top of the sealed cavity 1, providing a stable support for the entire handheld component 2 and ensuring the stability of the structure during the sewage suction process; the handle 22 is horizontally fixed to the top of the pole 21, and the operator can easily hold the handle 22 to control the entire sampler.

[0049] Based on the above, the control terminal 52 is a control switch 521; specifically, the control switch 521 is embedded in the surface of the handle 22, and its position is designed in accordance with ergonomic principles, making it easy for operators to reach and operate with their fingers when holding the handle 22. By operating the control switch 521, operators can conveniently control the start and stop of the pump body 511, thereby achieving precise control of the sewage suction process and further improving the flexibility and convenience of sewage sampling.

[0050] like Figure 5 As shown, and refer to Figure 1 The second suction assembly 6 further includes a one-way inlet valve 61, a passive suction part 62, and a passive suction part 62; specifically, the one-way inlet valve 61 is located at the bottom inlet of the water storage chamber 3, and its function is to ensure that sewage can only flow into the water storage chamber 3 in one direction and prevent sewage backflow.

[0051] The passive suction unit 62 is used to generate suction force under the action of the manual drive unit 7 to draw sewage from the one-way inlet valve 61 into the water storage chamber 3. Since the manual drive unit 7 is connected to the passive suction unit 62, the operator can manually operate the manual drive unit 7 to move the passive suction unit 62, thereby realizing the manual suction process of sewage. This allows the sewage sampler to complete the sewage sampling task manually when the automatic suction function of the first suction component 5 cannot be used, thus improving the applicability and flexibility of the sampler.

[0052] In some embodiments, as shown in the figure, the passive suction unit 62 further includes a plug 621 and a connecting rod 622; the manual drive unit 7 further includes a second connecting structure 71 and a set of grips 72; specifically, the plug 621 is made of a flexible material, and its shape fits tightly against the inner wall of the water storage cavity 3. During movement, it can effectively seal the water storage cavity 3 and can suck up the sewage outside the water storage cavity 3 during movement, so that the external sewage enters the water storage cavity 3 through the one-way inlet valve 61;

[0053] The connecting rod 622 is made of rigid material to ensure that it will not bend or deform when transmitting manual driving force, and to ensure that the plug 621 can move accurately in the water storage chamber 3.

[0054] The second connecting structure 71 is used to connect the connecting rod 622 and a set of grips 72 into one unit; the set of grips 72 are symmetrically distributed, which makes it convenient for the operator to grip and apply force. By manually pushing the grips 72, the second connecting structure 71 drives the connecting rod 622, thereby causing the plug 621 to reciprocate in the water storage chamber 3, so as to realize the suction of sewage.

[0055] In some embodiments, such as Figure 5 As shown in the enlarged view, the second connecting structure 71 further includes a set of sliding grooves 711, a set of sliders 712, and a collar 713. Specifically, the set of sliding grooves 711 is arranged along the length of the upright 21, and its width is adapted to the sliders 712, ensuring that the sliders 712 slide smoothly without wobbling or jamming, thereby ensuring the stability of the movement of the connecting rod 622. The set of sliders 712 is tightly connected to the connecting rod 622 by welding or bolting. When sliding in the sliding grooves 711, the power applied by the gripping rod 72 can be accurately transmitted to the connecting rod 622.

[0056] The collar 713 is sleeved on the outside of the upright 21, with an appropriate gap between its inner wall and the outer surface of the upright 21 to ensure that the collar 713 can slide up and down flexibly. The collar 713 is fixedly connected to a set of sliders 712 and a set of grips 72 by fasteners or integral molding. When the user holds the grips 72 and performs up and down pulling operations, the power of the grips 72 is transmitted to the sliders 712 through the collar 713. The sliders 712 then drive the connecting rod 622 to move stably along the path of the slide groove 711 inside the upright 21, thereby achieving the purpose of manually driving the passive suction unit 62 to pump sewage into the water storage chamber 3.

[0057] Finally, it should be noted that the outlet valve 8 is also included. Specifically, the outlet valve 8 is connected to a position above the initial contact point of the plug 621 with the bottom of the water storage chamber 3. This effectively prevents the plug 621 from interfering with the water discharge process when discharging sewage, ensuring that the sewage can be smoothly discharged from the water storage chamber 3 through the outlet valve 8. Thus, simply opening the outlet valve 8 allows the sewage to flow out naturally under gravity, making the operation very simple.

[0058] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wastewater sampler, comprising a sealed cavity (1) and a handheld component (2) connected to the sealed cavity (1), characterized in that, Also includes: The water storage cavity (3) is detachably connected to the sealing cavity (1) via a first connecting structure (4). The first connecting structure (4) includes a snap-fit ​​part (41) that allows the water storage cavity (3) to contact the sealing cavity (1), and a set of locking fasteners (42) that prevents the water storage cavity (3) from detaching from the sealing cavity (1). The first suction assembly (5) includes an automatic suction unit (51) capable of drawing sewage from the sealed cavity (1) into the water storage cavity (3), and a control terminal (52) disposed on the handheld component (2) and capable of activating the automatic suction unit (51); and The second suction assembly (6) includes a one-way inlet valve (61) disposed on the water storage chamber (3), a passive suction part (62) capable of drawing sewage from the one-way inlet valve (61) into the water storage chamber (3), and a manual drive part (7) capable of moving the passive suction part (62) in the water storage chamber (3).

2. The wastewater sampler according to claim 1, characterized in that, Each of the locking fasteners (42) includes a locking hook (421) for fixing the bottom of the sealing cavity (1) and a snap fastener (422) connected near the top opening of the water storage cavity (3) and capable of pressing and engaging with the locking hook (421). The snap-fit ​​part (41) includes a flange (411) fixed to the bottom of the sealing cavity (1) and capable of being fitted into the sealing cavity (1), a set of slots (412) opposite to the flange (411), and a snap strip (413) fixed to the inside of the opening of the sealing cavity (1) and capable of being inserted into the slots (412), so that the snap-fit ​​body (422) is vertically aligned with the hook (421).

3. The wastewater sampler according to claim 1, characterized in that, The automatic suction unit (51) includes a pump body (511) fixed in the sealed cavity (1) and with its outlet extending out of the sealed cavity (1), and a water inlet pipe (512) with one end inserted into the sealed cavity (1) to communicate with the inlet of the pump body (511) and the other end extending toward the bottom of the water storage cavity (3).

4. The wastewater sampler according to claim 1, characterized in that, The handheld component (2) includes a pole (21) fixed to the top of the sealed cavity (1) and a handle (22) fixed to the top of the pole (21).

5. The wastewater sampler according to claim 3 or 4, characterized in that, The control terminal (52) is a control switch (521) located on the handle (22) and connected to the pump body (511). The first suction assembly (5) also includes a battery (53) fixed in the sealed cavity (1) and electrically connected to the pump body (511).

6. The wastewater sampler according to claim 4, characterized in that, The passive suction unit (62) includes a plug (621) that is adapted to seal the water storage cavity (3), and a connecting rod (622) with one end fixed to the plug (621) and the other end passing through the sealing cavity (1) and movable in the upright (21). The manual drive unit (7) includes a set of grips (72) that can slide outside the upright (21) via a second connecting structure (71). When the second connecting structure (71) slides on the upright (21), it can drive the plug (621) to move inside the water storage chamber (3) via the connecting rod (622).

7. The wastewater sampler according to claim 6, characterized in that, The second connecting structure (71) includes a set of grooves (711) opened on both sides of the upright (21) and connected to the path of the connecting rod (622) inside the upright (21) for movement, a set of sliders (712) fixed to the connecting rod (622) and sliding in the grooves (711), and a collar (713) sleeved on the outside of the upright (21) and fixed to the sliders (712) and the handle (72) respectively.

8. The wastewater sampler according to claim 6, characterized in that, It also includes a drain valve (8) for draining sewage from the water storage chamber (3), and the drain valve (8) is connected above the part above the initial contact of the plug (621) with the bottom of the water storage chamber (3).

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