Sewage detection stratified sampling device

Abstract

The utility model provides a stratified sampling device for sewage detection, which relates to the technical field of sewage detection and comprises a sampling tube, a plurality of water storage units are vertically arranged in the sampling tube side by side, each water storage unit is connected with a water drawing component and a drainage component, the plurality of water drawing components are driven by a driving component to draw water synchronously, and the drainage component is connected with the sampling tube. And the plurality of drainage assemblies are used for respectively draining sewage in each water storage unit. The multi-layer sewage sampling device solves the problems of low sewage multi-layer sampling efficiency and difficulty in taking out sampled sewage in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage detection, in particular to a sewage detection stratified sampling device. Background Art

[0002] Sewage testing is required during the treatment process or before discharge. The purpose is to detect whether the harmful components in the sewage meet the discharge standards. At the same time, the test data also provides a reference for sewage treatment. The staff can adjust the treatment method according to the test data. Therefore, sewage testing is very important. Sewage sampling is required in the early stage of sewage testing.

[0003] Since sewage is deeper during sewage treatment, it may be stratified, which requires stratified sampling. However, traditional sewage detection sampling devices can generally only perform single collection when in use. When multi-layer sewage sampling is required, sampling personnel are required to perform multiple collections, which is troublesome and time-consuming, and work efficiency is affected. In addition, after the sewage sampling is completed, it is difficult for traditional devices to take out the stratified sampled sewage separately, which is inconvenient to use. Utility Model Content

[0004] In view of the deficiencies existing in the prior art, the utility model provides a sewage detection stratified sampling device, which solves the problems of low efficiency of sewage multi-layer sampling and difficulty in taking out the sampled sewage in the prior art.

[0005] According to an embodiment of the utility model, a stratified sampling device for sewage detection includes a sampling tube, in which a plurality of water storage units are vertically arranged in parallel, each of the water storage units is connected to a water pumping component and a drainage component, a plurality of the water pumping components are connected to a driving component for driving the water pumping components to pump water synchronously, and a plurality of the drainage components are used to discharge the sewage in each water storage unit respectively.

[0006] The technical principle of the utility model is:

[0007] Place the sampling tube into the sewage to be tested, and use the driving assembly to drive several water-pumping assemblies to synchronously pump water. Since several water storage units are arranged vertically in parallel inside the sampling tube, the sewage sampled at different depths is stored in layers in each water outlet unit. After the sampling is completed, the samples in each water storage unit are taken out separately through the drainage assembly.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] By driving several water-drawing components to draw water synchronously through the driving component, sampling can be completed in one operation when multi-layer sampling of sewage is carried out, thereby improving work efficiency; by setting up the drainage component, samples in each water storage unit can be taken out separately, which is convenient for testing the samples.

[0010] Preferably, the water drawing assembly includes a water inlet pipe connected to the water storage unit, a first sealing cover is slidably provided at the liquid inlet end of the water inlet pipe, and the first sealing cover includes a cover plate and a connecting tube fixed on the cover plate, a connecting rod is rotatably provided in the water inlet pipe, and the connecting rod is threadedly connected to the connecting tube.

[0011] Preferably, the driving assembly includes an operating rod and a plurality of first bevel gears, the operating rod is rotatably arranged in the sampling tube, each of the first bevel gears is fixedly arranged on the operating rod and corresponds one by one to each water storage unit, and a second bevel gear is fixedly arranged at one end of each connecting rod away from the first sealing cover, and each of the second bevel gears is respectively meshed with the first bevel gear.

[0012] Preferably, a ratchet is fixedly provided on the operating rod, and a pawl is movably installed on the top of the sampling tube, and the ratchet and the pawl cooperate with each other to limit the reverse rotation of the operating rod, so as to limit the first sealing cover from moving away from the water inlet pipe.

[0013] Preferably, a sealing ring is provided on one side of each cover plate close to the water inlet pipe.

[0014] Preferably, each of the water inlet pipes is of a rectangular structure, and each of the cover plates is fixedly connected with a guide pipe which has a clearance fit with the water inlet pipe.

[0015] Preferably, a water inlet hole is provided on the guide tube.

[0016] Preferably, a limit plate is fixedly provided in the water inlet pipe, which is rotatably connected to the connecting rod, and a water flow groove is provided on the limit plate.

[0017] Preferably, the drainage assembly includes a drainage pipe and a second sealing cover threadedly connected to the drainage pipe.

[0018] Preferably, a counterweight is installed at the bottom of the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of an embodiment of the utility model.

[0020] Figure 2 This is a cross-sectional view of an embodiment of the utility model.

[0021] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0022] Figure 4 It is a structural schematic diagram of the water inlet pipe and the first sealing cover.

[0023] Figure 5 It is a structural schematic diagram of the rotation limiting component in the embodiment of the utility model.

[0024] In the above drawings: 1. sampling tube; 2. partition; 3. water inlet pipe; 4. first sealing cover; 41. cover plate; 42. connecting tube; 43. guide tube; 44. water inlet hole; 45. sealing ring; 5. connecting rod; 6. operating rod; 7. first bevel gear; 8. second bevel gear; 9. limit plate; 10. water trough; 11. ratchet; 12. pawl; 13. drain pipe; 14. second sealing cover; 15. counterweight. DETAILED DESCRIPTION

[0025] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] like Figure 1 and Figure 2 As shown, an embodiment of the utility model proposes a stratified sampling device for sewage detection, including a sampling tube 1, in which a plurality of partitions 2 are vertically and parallelly fixedly arranged, and the partitions 2 and the sampling tube 1 are enclosed to form a plurality of water storage units. For the convenience of description, four water storage units are taken as an example here, and each of the water storage units is connected to a water drawing component and a drainage component, and the plurality of water drawing components are driven by a driving component to synchronously draw water, and the plurality of drainage components are used to discharge the sewage in each water storage unit respectively.

[0027] like Figure 3 and Figure 4 As shown, the water-drawing assembly includes a water inlet pipe 3 connected to the water storage unit, and a first sealing cover 4 is slidably provided at the liquid inlet end of the water inlet pipe 3, which includes a cover plate 41 and a connecting tube 42 fixed on the cover plate 41, the cover plate 41 is movably fitted with the liquid inlet end of the water inlet pipe 3 to control its opening and closing, and a sealing ring 45 is provided on the side of the cover plate 41 close to the water inlet pipe 3; a connecting rod 5 is rotatably provided in the water inlet pipe 3, and the connecting rod 5 is threadedly connected with the connecting tube 42, and the driving assembly is connected with the connecting rod 5 to drive the connecting rod 5 to rotate, thereby driving the connecting tube 42 to move axially relative to the connecting rod 5, when the connecting tube 42 and the cover plate 41 move away from the water inlet pipe 3, the liquid inlet end of the water inlet pipe 3 is opened, and water can enter the water storage unit through the water inlet pipe 3, and when the connecting tube 42 and the cover plate 41 move close to the water inlet pipe 3 and the cover plate 41 is tightly attached to the end of the water inlet pipe 3, the water inlet pipe 3 is closed to prevent water in the water storage unit from flowing out.

[0028] like Figure 2As shown, the driving assembly includes an operating rod 6 and a plurality of first bevel gears 7. The operating rod 6 is rotatably disposed in the sampling tube 1. The operating rod 6 is dynamically sealed with the partition 2 of each water storage unit. Each of the first bevel gears 7 is fixedly disposed on the operating rod 6 and corresponds to the water storage unit one by one. A second bevel gear 8 is fixedly disposed at one end of each connecting rod 5 away from the first sealing cover 4. Each of the second bevel gears 8 is respectively meshed with the first bevel gear 7. By rotating the operating rod 6 in the reverse direction, each connecting rod 5 is driven to rotate in the reverse direction, thereby moving the first sealing cover 4 away from the water inlet pipe 3, and the sewage of each layer can be collected; conversely, by rotating the operating rod 6 in the forward direction, the first sealing cover 4 can be moved close to the water inlet pipe 3, and each water inlet pipe 3 can be closed.

[0029] like Figure 4 As shown, according to another embodiment of the utility model, each of the water inlet pipes 3 is of a rectangular structure, and each of the cover plates 41 is fixedly connected with a guide tube 43, which is clearance-matched with the water inlet pipe 3, and a water inlet hole 44 is opened on the guide tube 43. The guide tube 43 is clearance-matched with the water inlet pipe 3, which can guide the axial movement of the cover plate 41 on the one hand, and prevent the cover plate 41 from rotating on the other hand. At the same time, the water inlet hole 44 is opened on the guide tube 43, so that water can flow smoothly into the water storage unit.

[0030] like Figure 4 As shown, according to another embodiment of the utility model, a limiting plate 9 is fixedly provided in the water inlet pipe 3 , which is rotatably connected to the connecting rod 5 , and a water groove 10 is provided on the limiting plate 9 .

[0031] like Figure 5 As shown, according to another embodiment of the utility model, the operating rod 6 is provided with a limited rotation assembly, which includes a ratchet 11 fixedly arranged on the operating rod 6 and a pawl 12 movably installed on the top of the sampling tube 1. The pawl 12 is rotatably installed on the top of the sampling tube 1 through a pin shaft. A torsion spring (not shown in the figure) is sleeved on the pin shaft. The two ends of the torsion spring respectively abut against the sampling tube 1 and the pawl 12 so that the pawl 12 always has a tendency to resist the rotation of the ratchet 11. Figure 5 The direction B is the positive direction. When the ratchet 11 and the pawl 12 cooperate with each other, they limit the reverse rotation of the operating rod 6, that is, they limit the first sealing cover 4 from moving away from the water inlet pipe 3, so as to prevent the cover plate 41 from loosening and causing the water in the water storage unit to flow out.

[0032] like Figure 1As shown, according to another embodiment of the utility model, the drainage assembly includes a drainage pipe 13 and a second sealing cover 14 threadedly connected to the drainage pipe 13. The connection structure between the second sealing cover 14 and the drainage pipe 13 is the same as the connection structure between a mineral water bottle and a bottle cap, which will not be repeated here. The drainage pipe 13 is connected to the water storage unit. After the sampling tube 1 finishes sampling the sewage, the user can open the second sealing cover 14 respectively, and sewage of different depths flows out through the four groups of drainage pipes 13 respectively, thereby further facilitating the user to take out sewage of different depths.

[0033] like Figure 1 According to another embodiment of the utility model, a counterweight block 15 is installed at the bottom of the sampling tube 1. By setting the counterweight block 15, the sampling bucket inside the sewage pool is kept vertical under the action of the counterweight block 15, thereby further improving the stability and accuracy of sampling in the sampling bucket.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A sewage detection stratified sampling device, characterized in that: It comprises a sampling tube (1), in which a plurality of water storage units are arranged vertically in parallel, each of the water storage units is connected to a water drawing component and a drainage component, a plurality of the water drawing components are connected to a driving component for driving the water drawing components to draw water synchronously, and a plurality of the drainage components are used to discharge sewage in each water storage unit respectively; The water-drawing assembly comprises a water inlet pipe (3) connected to the water storage unit, a first sealing cover (4) is slidably provided at the liquid inlet end of the water inlet pipe (3), the first sealing cover (4) comprises a cover plate (41) and a connecting tube (42) fixedly provided on the cover plate (41), a connecting rod (5) is rotatably provided in the water inlet pipe (3), and the connecting rod (5) is threadedly connected to the connecting tube (42); The driving assembly comprises an operating rod (6) and a plurality of first bevel gears (7), the operating rod (6) being rotatably arranged in the sampling tube (1), each of the first bevel gears (7) being fixedly arranged on the operating rod (6) and corresponding to each water storage unit one by one, and each of the connecting rods (5) being fixedly arranged at one end away from the first sealing cover (4) with a second bevel gear (8), each of the second bevel gears (8) being respectively meshed with the first bevel gear (7); Each of the water inlet pipes (3) is of rectangular structure, and each of the cover plates (41) is fixedly connected with a guide pipe (43) which is clearance-matched with the water inlet pipe (3); The guide tube (43) is provided with a water inlet hole (44).

2. A sewage detection stratified sampling device as claimed in claim 1, characterized in that: A ratchet (11) is fixedly arranged on the operating rod (6), and a ratchet pawl (12) is movably installed on the top of the sampling tube (1). When the ratchet (11) and the ratchet pawl (12) cooperate with each other, the operating rod (6) is restricted from rotating in the opposite direction, so as to restrict the first sealing cover (4) from moving away from the water inlet pipe (3).

3. A sewage detection stratified sampling device as claimed in claim 1, characterized in that: A sealing ring (45) is provided on one side of each cover plate (41) close to the water inlet pipe (3).

4. A sewage detection stratified sampling device as claimed in claim 1, characterized in that: A limit plate (9) is fixedly arranged in the water inlet pipe (3) and is rotatably connected to the connecting rod (5). A water channel (10) is provided on the limit plate (9).

5. A sewage detection stratified sampling device as claimed in claim 1, characterized in that: The drainage assembly comprises a drainage pipe (13) and a second sealing cover (14) threadedly connected to the drainage pipe (13).

6. A sewage detection stratified sampling device as claimed in claim 1, characterized in that: A counterweight (15) is installed at the bottom of the sampling tube (1).

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