A sewage sampling device

Abstract

The utility model provides a kind of sewage sampling device, comprising: outer tube, outer tube outside is equipped with scale mark;Mounting seat, mounting seat is fixedly connected with outer tube, and mounting seat is opened with connecting hole;Sampling bottle, sampling bottle is detachably connected in the inner side of connecting hole, and the bottle mouth of sampling bottle is set upwards;Core rod, core rod is movably connected in the inner side of outer tube along the length direction of outer tube, and core rod is equipped with the sealing cover corresponding with the bottle mouth of sampling bottle, and sealing cover is used to close bottle mouth.The utility model has beneficial effects: specified depth sewage can be sampled by scale mark, and the state switching of unsealing, sealing bottle mouth can be completed by moving core rod, and it is convenient to sample and improve work efficiency.

Description

Technical Field

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

[0002] Wastewater treatment refers to the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Sampling and testing of influent water quality at wastewater treatment plants is one of the important means of controlling the influent water quality of domestic sewage. Currently, wastewater sampling is carried out manually by scooping wastewater from the wastewater tank with a ladle and placing it into a sampling bottle, and then testing the wastewater in the sampling bottle. The following problems exist in the operation: First, the wastewater in the wastewater tank may exhibit stratification, and it is necessary to sample wastewater at a specific depth, which cannot be obtained by scooping wastewater with a ladle; Second, the sampling process is complicated, resulting in low work efficiency, and the use of a funnel in the process can easily cause cross-contamination. Utility Model Content

[0003] In view of this, the present invention aims to provide a wastewater sampling device in order to solve at least one of the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A wastewater sampling device, comprising:

[0006] The outer tube has graduation markings on its outer side;

[0007] Mounting base, which is fixedly connected to the outer tube, and has a connection hole;

[0008] A sampling bottle, wherein the sampling bottle is detachably connected to the inside of the connection hole, and the bottle mouth of the sampling bottle is facing upward;

[0009] A core rod is movably connected to the inside of the outer tube along the length of the outer tube. The core rod is provided with a sealing cap corresponding to the mouth of the sampling bottle, and the sealing cap is used to seal the mouth of the bottle.

[0010] Furthermore, a first handle is fixedly provided on the outer side of the upper end of the outer tube, and the axis of the first handle is perpendicular to the axis of the outer tube.

[0011] Furthermore, the outer tube has a strip-shaped through hole, which is set along the length of the outer tube. The core rod is provided with an L-shaped mounting rod corresponding to the strip-shaped through hole. The width of the vertical rod of the L-shaped mounting rod matches the width of the strip-shaped through hole. The vertical rod of the L-shaped mounting rod is installed inside the strip-shaped through hole. The sealing cap is connected to the horizontal rod of the L-shaped mounting rod.

[0012] Furthermore, the vertical rod of the L-shaped mounting rod is detachably connected to the core rod via a first connecting bolt, and the sealing cover is detachably connected to the horizontal rod of the L-shaped mounting rod via a second connecting bolt. The height of the vertical rod of the L-shaped mounting rod is less than the length of the strip-shaped through hole.

[0013] Furthermore, a rubber sealing gasket is fixed at the lower end of the sealing cap. The diameter of the rubber sealing gasket is larger than the inner diameter of the bottle mouth. The outer edge of the lower end of the rubber sealing gasket adopts a chamfered structure, and the lower end diameter of the chamfered structure is smaller than the inner diameter of the bottle mouth.

[0014] Furthermore, the sampling bottle has an external thread on the outer side of its opening, and the connecting hole has an internal thread that matches the external thread on the outer side of the bottle opening. The bottle opening is threaded to the inner side of the connecting hole.

[0015] The height of the bottle opening is greater than the height of the mounting base, and the upper end of the bottle opening protrudes from the upper surface of the mounting base.

[0016] Furthermore, the diameter of the core rod matches the inner diameter of the outer tube, a connecting rod is fixedly provided at the upper end of the core rod, the diameter of the connecting rod is smaller than the diameter of the core rod, a baffle is provided at the upper end of the outer tube, the baffle is threaded to the inner side of the outer tube, the baffle has a socket that matches the connecting rod, the connecting rod is located inside the socket, and the upper end of the connecting rod protrudes from the baffle.

[0017] A compression spring is provided between the baffle and the core rod, and the compression spring is located on the outside of the connecting rod.

[0018] Furthermore, the upper end of the connecting rod is provided with a second handle, the diameter of which is larger than the diameter of the connecting rod, and the second handle is detachably connected to the connecting rod.

[0019] Furthermore, the sampling bottle is provided with a corresponding cap, which is threadedly connected to the mouth of the sampling bottle.

[0020] Furthermore, the sampling bottle is a structural component made of polyethylene.

[0021] Compared with the prior art, the wastewater sampling device of this utility model has the following advantages:

[0022] The wastewater sampling device described in this utility model can sample wastewater at a specified depth through scale markings, and the movable core rod can switch between unsealing and sealing the bottle mouth, which facilitates sampling and improves work efficiency. Attached Figure Description

[0023] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0024] Figure 1 This is a three-dimensional structural diagram of the device described in an embodiment of the present utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of the upper end of the device described in this embodiment of the utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the lower end of the device described in an embodiment of the present invention;

[0027] Figure 4 This is a three-dimensional structural diagram of the device described in this embodiment of the invention without a sampling bottle installed at the lower end;

[0028] Figure 5 This is a schematic diagram of the lower cross-sectional structure of the device described in this embodiment of the utility model;

[0029] Figure 6 As described in the embodiments of this utility model Figure 5 Schematic diagram of the structure at point A in the middle;

[0030] Figure 7 This is a schematic diagram of the upper cross-sectional structure of the device described in an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Outer tube; 2. Core rod; 3. Sealing cap; 4. Sampling bottle; 5. Mounting base; 6. L-shaped mounting rod; 7. Compression spring; 101. First handle; 102. Strip-shaped through hole; 103. Baffle; 201. Connecting rod; 202. Second handle; 401. Bottle mouth; 301. Rubber sealing gasket; 501. Connecting hole; 601. First connecting bolt; 602. Second connecting bolt. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] like Figures 1 to 7 As shown, a wastewater sampling device includes: an outer tube 1 with graduated markings on its outer side; a mounting base 5 fixedly connected to the outer tube 1, with a connection hole 501 on the mounting base 5; a sampling bottle 4 detachably connected to the inner side of the connection hole 501, with the bottle opening 401 facing upwards; and a core rod 2 movably connected to the inner side of the outer tube 1 along its length, with a sealing cap 3 corresponding to the bottle opening 401 of the sampling bottle 4 on the core rod 2, the sealing cap 3 being used to seal the bottle opening 401.

[0038] A first handle 101 is fixedly provided on the outer side of the upper end of the outer tube 1. The axis of the first handle 101 is perpendicular to the axis of the outer tube 1. The first handle 101 makes it easy for the operator to hold the device.

[0039] The outer tube 1 has a strip-shaped through hole 102, which is set along the length of the outer tube 1. The core rod 2 has an L-shaped mounting rod 6 corresponding to the strip-shaped through hole 102. The width of the vertical rod of the L-shaped mounting rod 6 matches the width of the strip-shaped through hole 102. The vertical rod of the L-shaped mounting rod 6 is installed inside the strip-shaped through hole 102. The sealing cap 3 is connected to the horizontal rod of the L-shaped mounting rod 6. The cooperation between the strip-shaped through hole 102 and the vertical rod of the L-shaped mounting rod 6 guides the movement of the core rod 2, prevents relative rotation between the core rod 2 and the outer tube 1, and ensures that the sealing cap 3 is aligned with the bottle mouth 401.

[0040] The vertical rod of the L-shaped mounting rod 6 is detachably connected to the core rod 2 via the first connecting bolt 601, and the sealing cover 3 is detachably connected to the horizontal rod of the L-shaped mounting rod 6 via the second connecting bolt 602. The height of the vertical rod of the L-shaped mounting rod 6 is less than the length of the strip-shaped through hole 102.

[0041] A rubber sealing gasket 301 is fixed at the lower end of the sealing cap 3. The diameter of the rubber sealing gasket 301 is larger than the inner diameter of the bottle mouth 401. The outer edge of the lower end of the rubber sealing gasket 301 adopts a chamfered structure, and the lower end diameter of the chamfered structure is smaller than the inner diameter of the bottle mouth 401.

[0042] The sampling bottle 4 has an external thread on the outer side of its neck 401, and an internal thread matching the external thread on the inner side of the connecting hole 501. The neck 401 is threaded into the inner side of the connecting hole 501. The height of the neck 401 is greater than the height of the mounting base 5, and the upper end of the neck 401 protrudes from the upper end face of the mounting base 5, facilitating the sealing of the rubber sealing gasket 301. Sampling bottles 4 come in various models with different sampling volumes, suitable for collecting samples of different volumes, thus broadening the applicability of the device. The sampling bottle 4 can be, but is not limited to, existing plastic sampling bottles 4, such as the transparent plastic PET polyester bottle from Cangxian Xinren Plastic Products Factory, whose structure is the same as that of a mineral water bottle.

[0043] The diameter of the core rod 2 matches the inner diameter of the outer tube 1. A connecting rod 201 is fixed to the upper end of the core rod 2. The diameter of the connecting rod 201 is smaller than the diameter of the core rod 2. A baffle 103 is provided at the upper end of the outer tube 1. The baffle 103 is threaded to the inner side of the outer tube 1. An insertion hole matching the connecting rod 201 is opened on the baffle 103. The connecting rod 201 is located inside the insertion hole, and its upper end protrudes from the baffle 103. A compression spring 7 is provided between the baffle 103 and the core rod 2. The compression spring 7 is located outside the connecting rod 201. The compression spring 7 serves to tighten the sealing cover 3, improving the sealing effect of the sealing cover 3.

[0044] The upper end of the connecting rod 201 is provided with a second handle 202. The diameter of the second handle 202 is larger than the diameter of the connecting rod 201. The second handle 202 is detachably connected to the connecting rod 201, and the second handle 202 facilitates the movement of the core rod 2.

[0045] The sampling bottle 4 is equipped with a bottle cap, which is threaded to the bottle opening 401 of the sampling bottle 4. After sampling, the bottle cap is used to seal the bottle opening 401 to prevent the sewage sample from being contaminated and to improve the accuracy of subsequent testing.

[0046] Sampling bottle 4 is a structural component made of polyethylene, which has corrosion resistance.

[0047] Work process:

[0048] The assembly process of this device is as follows: the core rod 2 is installed inside the outer tube 1, and then the vertical rod of the L-shaped mounting rod 6 is installed in the strip-shaped through hole 102 and connected to the core rod 2 by the first connecting bolt 601. The sealing cover 3 is installed on the horizontal rod of the L-shaped mounting rod 6 by the second connecting bolt 602. A spring is installed between the connecting rod 201 and the outer tube 1. The mounting baffle 103 is threadedly connected to the outer tube 1. The spring length in the inner tube is compressed to form a compression spring 7, so that the second handle 202 is connected to the connecting rod 201. Finally, the mounting base 5 is fixed so that the connecting hole 501 corresponds to the sealing cover 3.

[0049] The sampling process is as follows: the sampling bottle 4 is threaded into the connecting hole 501, and the bottle mouth 401 of the sampling bottle 4 contacts the rubber sealing gasket 301. Specifically, the lower end of the rubber sealing gasket 301 is located inside the bottle mouth 401. The chamfered structure of the rubber sealing gasket 301 presses against the opening of the bottle mouth 401 to form a seal. Then, according to the scale markings on the outer tube 1, the moving device moves the bottle mouth 401 of the sampling bottle 4 to the specified depth (for example, sampling requires sampling 20-40cm below the surface of the sewage). The second handle 202 is moved upward, and the compression spring 7 is further compressed, causing the sealing rubber gasket to disengage from the bottle mouth 401, and sewage enters the sampling bottle 4. Then, the second handle 202 is released, and the sealing rubber gasket presses against the bottle mouth 401, thus achieving a seal. The moving device loosens the sampling bottle 4, and the bottle mouth 401 is sealed with the bottle cap. The above steps are repeated with a new sampling bottle 4, which improves work efficiency.

[0050] The scale markings allow for sampling of wastewater at a specified depth. The movable core rod 2 can switch between unsealing and sealing the bottle opening 401, facilitating sampling and improving work efficiency. Furthermore, by replacing the sampling bottle 4, work efficiency is further improved.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wastewater sampling device, characterized in that, include: The outer tube (1) has scale markings on its outer side; Mounting base (5), which is fixedly connected to the outer tube (1), and the mounting base (5) has a connection hole (501); Sampling bottle (4), the sampling bottle (4) is detachably connected to the inside of the connecting hole (501), and the bottle mouth (401) of the sampling bottle (4) is set upward; The core rod (2) is movably connected to the inner side of the outer tube (1) along the length direction of the outer tube (1). The core rod (2) is provided with a sealing cap (3) corresponding to the bottle mouth (401) of the sampling bottle (4). The sealing cap (3) is used to close the bottle mouth (401).

2. The wastewater sampling device according to claim 1, characterized in that: A first handle (101) is fixedly provided on the outer side of the upper end of the outer tube (1), and the axis of the first handle (101) is perpendicular to the axis of the outer tube (1).

3. The wastewater sampling device according to claim 1, characterized in that: The outer tube (1) has a strip-shaped through hole (102) which is set along the length of the outer tube (1). The core rod (2) is provided with an L-shaped mounting rod (6) corresponding to the strip-shaped through hole (102). The width of the vertical rod of the L-shaped mounting rod (6) matches the width of the strip-shaped through hole (102). The vertical rod of the L-shaped mounting rod (6) is installed inside the strip-shaped through hole (102). The sealing cover (3) is connected to the horizontal rod of the L-shaped mounting rod (6).

4. A wastewater sampling device according to claim 3, characterized in that: The vertical rod of the L-shaped mounting rod (6) is detachably connected to the core rod (2) by the first connecting bolt (601), and the sealing cover (3) is detachably connected to the horizontal rod of the L-shaped mounting rod (6) by the second connecting bolt (602). The height of the vertical rod of the L-shaped mounting rod (6) is less than the length of the strip-shaped through hole (102).

5. A wastewater sampling device according to claim 1, characterized in that: The lower end of the sealing cap (3) is fixed with a rubber sealing gasket (301). The diameter of the rubber sealing gasket (301) is larger than the inner diameter of the bottle mouth (401). The outer edge of the lower end of the rubber sealing gasket (301) adopts a chamfered structure. The lower end diameter of the chamfered structure is smaller than the inner diameter of the bottle mouth (401).

6. A wastewater sampling device according to claim 1, characterized in that: The sampling bottle (4) has an external thread on the outside of the bottle mouth (401), and the connecting hole (501) has an internal thread that matches the external thread on the outside of the bottle mouth (401). The bottle mouth (401) is threaded to the inside of the connecting hole (501). The height of the bottle opening (401) is greater than the height of the mounting base (5), and the upper end of the bottle opening (401) protrudes from the upper surface of the mounting base (5).

7. A wastewater sampling device according to claim 1, characterized in that: The diameter of the core rod (2) matches the inner diameter of the outer tube (1). A connecting rod (201) is fixed at the upper end of the core rod (2). The diameter of the connecting rod (201) is smaller than the diameter of the core rod (2). A baffle (103) is provided at the upper end of the outer tube (1). The baffle (103) is threaded to the inner side of the outer tube (1). The baffle (103) has a socket that matches the connecting rod (201). The connecting rod (201) is located inside the socket. The upper end of the connecting rod (201) protrudes from the baffle (103). A compression spring (7) is provided between the baffle (103) and the core rod (2), and the compression spring (7) is located on the outside of the connecting rod (201).

8. A wastewater sampling device according to claim 7, characterized in that: The upper end of the connecting rod (201) is provided with a second handle (202), the diameter of the second handle (202) is larger than the diameter of the connecting rod (201), and the second handle (202) is detachably connected to the connecting rod (201).

9. A wastewater sampling device according to claim 1, characterized in that: The sampling bottle (4) is provided with a bottle cap, which is threadedly connected to the bottle mouth (401) of the sampling bottle (4).

10. A wastewater sampling device according to claim 1, characterized in that: The sampling bottle (4) is a structural component made of polyethylene.

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