Sewage multi-layer sampling device

Abstract

The utility model discloses a sewage multi-layer sampling device which comprises a plurality of sampling assemblies which are detachably connected, the sampling assembly comprises a sampling pipe, the sampling pipe is in a triangular prism shape and comprises a first side face, a second side face and a third side face, a sampling opening is formed in the first side face, a sealing plug covers the sampling opening, and a limiting ring is fixed to the end, extending into the sampling pipe, of the sealing plug to prevent the sealing plug from sliding out of the sampling pipe; a plurality of through grooves penetrate through one end, close to the limiting ring, of the sealing plug, liquid flows into the sampling tube, a sliding block is fixed to one end, away from the limiting ring, of the sealing plug, and the sliding block is slidably connected with an uncovering assembly for opening the sealing plug; the uncovering assemblies of the two sampling assemblies are detachably connected; and the second side surface of the sampling tube is provided with a one-way valve for liquid / gas to flow from the inside to the outside of the sampling tube. The sampling devices are detachably connected, so that the situation that one device is damaged to influence the use of other devices is avoided, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sampling equipment, and in particular relates to a sewage multi-layer sampling device. Background Art

[0002] Lakes are important water sources. Many drinking water sources are provided by lakes. It is necessary to collect water samples from lakes frequently and obtain basic data on water pollution through analysis and measurement. Water samples for analysis should be representative and reflect the chemical composition and characteristics of the water body. The sampling method, location, time, and number of times are determined according to the characteristics of the water body and the purpose of analysis. If necessary, sampling can be carried out in layers at different depths. The number of sampling times is evenly distributed in different periods and different flow rates according to changes in water conditions.

[0003] When sampling water quality at different depths, the existing sampling device mainly extends the sampling tube to the depth required for sampling, which requires multiple samplings, is time-consuming and labor-intensive, especially for deeper places where multi-layer sampling is required, which greatly increases the sampling cost. Utility Model Content

[0004] Based on the above background, the purpose of the utility model is to provide a sewage multi-layer sampling device.

[0005] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0006] A sewage multi-layer sampling device comprises a plurality of sampling components, wherein the sampling components are detachably connected to each other; the sampling components are connected according to the depth required for detection, so as to realize sampling of water sources at multiple depths at one time;

[0007] The sampling assembly includes a sampling tube, which is a triangular prism, and includes a first side surface, a second side surface and a third side surface. The first side surface is provided with a sampling port, and a sealing plug is covered in the sampling port. A limiting ring is fixed to the end of the sealing plug extending into the sampling tube to prevent the sealing plug from slipping out of the sampling tube; a plurality of through grooves are penetrated at one end of the sealing plug close to the limiting ring for liquid to flow into the sampling tube, and a slider is fixed to the end of the sealing plug away from the limiting ring, and the slider is slidably connected to a cover opening assembly for opening the sealing plug;

[0008] The cover opening components of the two sampling components are detachably connected;

[0009] A one-way valve is provided on the second side of the sampling tube for liquid / gas to flow from the inside of the sampling tube to the outside;

[0010] The sampling tube is a triangular prism, which can reduce the pressure of water flow on the sampling tube when sampling. Use the cover opening assembly to pull out the sealing plug. Under the pressure of the water flow, the air in the sampling tube is discharged from the one-way valve, and the water flows into the sampling tube along the groove of the sealing plug. After the sampling tube is filled with the sample, push the cover opening assembly to seal the sampling port with the sealing plug to complete the sampling.

[0011] Preferably, the cover opening assembly comprises two rotating seats, the two rotating seats are fixedly arranged on the first side surface of the sampling tube, a first rotating plate and a second rotating plate are rotatably arranged in the two rotating seats respectively, and the first rotating plate is rotatably connected with the second rotating plate;

[0012] One end of the first rotating plate away from the second rotating plate is a retractable structure;

[0013] A first sliding groove is provided on one side of the first rotating plate close to the first side surface, and the sliding block is slidably arranged in the first sliding groove;

[0014] By setting the first rotating plate and the second rotating plate and changing the direction of force application, it can be achieved that after the cover opening component on the sampling component is connected, only the topmost first rotating rod needs to be rotated, and the first rotating rods of all sampling components drive the sealing plugs to be pulled out in the same direction for sampling.

[0015] Preferably, a first slot is formed on the upper end surface of the first rotating plate, and first through holes penetrating the two sides of the first rotating plate are formed on both sides of the first slot;

[0016] A first clamping block is fixedly disposed on the lower end surface of the second rotating plate, the first clamping block corresponds to the first clamping slot, and a second through hole corresponding to the first through hole is penetrated through the first clamping block;

[0017] The first clamping block of any sampling component is clamped with the first clamping slot of one of the adjacent sampling components and is fixedly connected via a fixing component.

[0018] Preferably, the fixing assembly includes a plug-in rod, the plug-in rod corresponds to the first through hole and the second through hole, one end of the plug-in rod is provided with a limit block, the other end of the plug-in rod is fixedly connected to a threaded rod, and the threaded rod is threadedly connected to a nut. When the first clamping block is clamped in the first clamping groove, the plug-in rod is inserted into the first through hole and the second through hole, the threaded rod extends out of the first through hole, and the nut is threadedly connected to the threaded rod for fixing; the first rotating plate is clamped with the second rotating plate on the adjacent sampling assembly and fixed by the plug-in rod to prevent the cover opening assembly of any sampling assembly from being disconnected during sampling, resulting in partial sampling failure.

[0019] Preferably, a connecting block is provided on the upper end surface of the sampling tube, a second slot is provided on the connecting block, a rotating rod is rotatably provided at one end of the connecting block, the rotating rod can rotate to open one end of the second slot, and an end of the rotating rod away from the rotating shaft is threadedly connected to the connecting block by a bolt;

[0020] A second clamping block is fixedly provided on the lower end surface of the sampling tube;

[0021] The second card block is engaged with the second card slot.

[0022] Preferably, the rotating rod is arranged at one end of the connecting block corresponding to the third side surface.

[0023] Preferably, the end of the sealing plug that is sealed with the sampling port is coated with a silicone pad to improve the sealing performance.

[0024] Preferably, a detachable extension plate is provided between the sampling components, the extension plate is in the shape of a triangular prism, and the top and bottom of the extension plate are completely consistent with the top and bottom structures of the sampling tube;

[0025] A cover opening assembly is provided on a side of the extension plate corresponding to the first side surface of the sampling tube.

[0026] The utility model has the following beneficial effects:

[0027] 1. Through the detachable connection between the sampling devices, it is avoided that the damage of one device affects the use of the entire sampling device, thereby improving the practicality of the device.

[0028] 2. Connect the sampling components through the connecting plate and install them according to the required sampling depth to avoid invalid sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of a single sampling component of the utility model;

[0031] Figure 2 It is a three-dimensional structural schematic diagram of a single sampling component of the utility model from another perspective;

[0032] Figure 3 It is a schematic diagram of the three-dimensional structure after the two sampling components of the utility model are installed;

[0033] Figure 4 It is a three-dimensional structural schematic diagram of the disassembled cover opening component and the sampling component of the utility model;

[0034] Figure 5 It is a three-dimensional structural schematic diagram of the cover opening assembly of the utility model;

[0035] Figure 6 For the utility model Figure 3 Schematic diagram of the split three-dimensional structure at A in the middle;

[0036] Figure 7 It is a schematic diagram of the three-dimensional structure of the connecting block of the utility model when the rotating rod is opened;

[0037] Figure 8 For the utility model Figure 7 A schematic diagram of a three-dimensional structure from another perspective;

[0038] Fig. 9 It is a three-dimensional structural schematic diagram of the extended plate of the utility model.

[0039] Wherein: 1. sampling assembly; 11. sampling tube; 111. first side surface; 112. second side surface; 113. third side surface; 12. sampling port; 13. sealing plug; 14. limiting ring; 15. through groove; 16. one-way valve;

[0040] 2. Slider;

[0041] 3. Opening assembly; 31. Rotating seat; 32. First rotating plate; 33. Second rotating plate; 34. First sliding slot; 321. First clamping slot; 322. First through hole; 331. First clamping block; 332. Second through hole;

[0042] 4. Fixing assembly; 41. Connecting rod; 42. Limiting block; 43. Threaded rod; 44. Nut;

[0043] 5. Connecting block; 51. Second card slot; 52. Rotating rod; 53. Second card block;

[0044] 6. Extension board. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0047] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0048] like Figure 1-8 As shown, a sewage multi-layer sampling device includes a plurality of sampling components 1, wherein the sampling components 1 are detachably connected to each other; the sampling components 1 are connected according to the depth required for detection, so as to realize sampling of water sources at multiple depths at one time;

[0049] The sampling assembly 1 includes a sampling tube 11, which is a triangular prism. The sampling tube 11 includes a first side surface 111, a second side surface 112 and a third side surface 113. The first side surface 111 is provided with a sampling port 12, and a sealing plug 13 is covered in the sampling port 12. The end of the sealing plug 13 extending into the sampling tube 11 is fixed with a limiting ring 14 to prevent the sealing plug 13 from sliding out of the sampling tube 11; the end of the sealing plug 13 close to the limiting ring 14 is penetrated by a plurality of through grooves 15 for liquid to flow into the sampling tube 11, and the end of the sealing plug 13 away from the limiting ring 14 is fixed with a slider 2, and the slider 2 is slidably connected with a cover opening assembly 3 for opening the sealing plug 13;

[0050] The cover opening components 3 of the two sampling components 1 are detachably connected;

[0051] The second side surface 112 of the sampling tube 11 is provided with a one-way valve 16 for liquid / gas to flow from the inside of the sampling tube 11 to the outside;

[0052] The sampling tube 11 is a triangular prism, which can reduce the pressure of water flow on the sampling tube when sampling. Use the cover opening component 3 to pull out the sealing plug 13. Under the pressure of the water flow, the air in the sampling tube 11 is discharged from the one-way valve 3, and the water flows into the sampling tube 11 along the through groove 15 of the sealing plug 13. After the sampling tube 11 is filled with the sample, push the cover opening component 3 to seal the sampling port 12 with the sealing plug 13 to complete the sample sampling.

[0053] Preferably, the cover opening assembly 3 comprises two rotating seats 31, the two rotating seats 31 are fixedly arranged on the first side surface 111 of the sampling tube 11, a first rotating plate 32 and a second rotating plate 33 are rotatably arranged in the two rotating seats 31, and the first rotating plate 32 is rotatably connected to the second rotating plate 33;

[0054] One end of the first rotating plate 32 away from the second rotating plate 33 is a retractable structure;

[0055] A first sliding groove 34 is formed on one side of the first rotating plate 32 close to the first side surface 111, and the slider 2 is slidably disposed in the first sliding groove 34;

[0056] By setting the first rotating plate 31 and the second rotating plate 33, the direction of force application is changed, so that after the cover opening component 3 on the sampling component 1 is connected, it can be achieved that only the topmost first rotating rod 32 needs to be rotated, and the first rotating rods 32 of all sampling components 1 drive the sealing plugs 13 to be pulled out in the same direction for sampling.

[0057] Preferably, a first slot 321 is formed on the upper end surface of the first rotating plate 32, and first through holes 322 penetrating through the two sides of the first rotating plate 32 are formed on both sides of the first slot 321;

[0058] A first clamping block 331 is fixedly disposed on the lower end surface of the second rotating plate 33. The first clamping block 331 corresponds to the first clamping groove 321. A second through hole 332 corresponding to the first through hole 322 is penetrated through the first clamping block 331.

[0059] The first clamping block 331 of any sampling component 1 is clamped with the first clamping groove 321 of one of the adjacent sampling components 1 and is fixedly connected through the fixing component 4 .

[0060] Preferably, the fixing assembly 4 includes a plug-in rod 41, the plug-in rod 41 corresponds to the first through hole 322 and the second through hole 332, one end of the plug-in rod 41 is provided with a limit block 42, the other end of the plug-in rod 41 is fixedly connected with a threaded rod 43, and the threaded rod 43 is threadedly connected with a nut 44. When the first clamping block 331 is clamped in the first clamping groove 321, the plug-in rod 41 is inserted into the first through hole 322 and the second through hole 332, the threaded rod 43 extends out of the first through hole, and the nut 44 is threadedly connected to the threaded rod for fixing; the first rotating plate 32 is clamped with the second rotating plate 33 on the adjacent sampling assembly 1, and is fixed by the plug-in rod 41, so as to avoid the disconnection of the cover opening assembly 3 of any sampling assembly 1 during sampling, resulting in partial sampling failure.

[0061] Preferably, a connecting block 5 is provided on the upper end surface of the sampling tube 11, and a second slot 51 is provided on the connecting block 5. A rotating rod 52 is rotatably provided at one end of the connecting block 5, and the rotating rod 52 can rotate to open one end of the second slot 51. The end of the rotating rod 52 away from the rotating shaft is threadedly connected to the connecting block 5 by a bolt;

[0062] A second clamping block 53 is fixedly disposed on the lower end surface of the sampling tube 11;

[0063] The second clamping block 53 is clamped with the second clamping slot 51 .

[0064] Preferably, the rotating rod 52 is disposed at one end of the connecting block 5 corresponding to the third side surface 113 .

[0065] Preferably, one end of the sealing plug 13 that is sealed with the sampling port 12 is coated with a silicone pad to improve the sealing performance.

[0066] Preferably, Fig. 9 As shown, a detachable extension plate 6 is provided between the sampling components 1, and the extension plate 6 is triangular in shape, and the top and bottom of the extension plate 6 are completely consistent with the top and bottom structures of the sampling tube 11;

[0067] A cover opening assembly 3 is disposed on a side of the extension plate 6 corresponding to the first side surface 111 of the sampling tube 11 .

[0068] The structure of the extension plate is consistent with that of the sampling tube, but it does not have the sampling function. The cover opening assembly 3 arranged on the extension plate 6 is used for connecting the upper and lower parts, and plays a connecting role with the cover opening assembly 3 on the sampling tube 11.

[0069] The working principle of the utility model is as follows: the rotating rod 52 of one sampling assembly 1 is rotated to open, and the second clamping block 53 of another sampling assembly 1 is slidably clamped into the second clamping groove 51 of the sampling assembly 1. After the clamping is completed, the rotating rod 52 is rotated to close and the rotating rod 52 is fixed with bolts to prevent the sampling assembly 1 from being disconnected during sampling;

[0070] Because the end of the first rotating plate 32 away from the second rotating plate 33 is a retractable structure, it can prevent the first rotating plate 32 on one sampling component 1 from colliding and being damaged with the second rotating plate 33 on the other sampling component 1 when the two sampling components 1 are connected. After the two sampling components 1 are snap-fitted and fixed, the second clamping block 331 of the second rotating plate 33 is snapped into the first clamping groove 321 of the first rotating plate 32 and fixed with the fixing component 4.

[0071] Repeat the above steps to connect the sampling component 1 according to the required sampling depth.

[0072] By setting the extension plate 6, the assembly can be performed according to the required sampling depth. The extension plate 6 can be installed at the water depth where sampling is not required, and the sampling tube 11 can be installed at the water depth where sampling is required, thereby avoiding invalid sampling.

[0073] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A sewage multi-layer sampling device, characterized in that: It comprises a plurality of sampling components, wherein the sampling components are detachably connected to each other; The sampling assembly includes a sampling tube, which is a triangular prism, and includes a first side surface, a second side surface and a third side surface. The first side surface is provided with a sampling port, and a sealing plug is covered in the sampling port. A limiting ring is fixed to the end of the sealing plug extending into the sampling tube to prevent the sealing plug from sliding out of the sampling tube; a plurality of through grooves are penetrated at one end of the sealing plug close to the limiting ring for liquid to flow into the sampling tube, and a slider is fixed to the end of the sealing plug away from the limiting ring, and the slider is slidably connected to a cover opening assembly for opening the sealing plug; The cover opening components of the two sampling components are detachably connected; A one-way valve is provided on the second side of the sampling tube for liquid / gas to flow from the inside to the outside of the sampling tube.

2. The sampling device according to claim 1, characterized in that: The cover opening assembly comprises two rotating seats, the two rotating seats are fixedly arranged on the first side surface of the sampling tube, a first rotating plate and a second rotating plate are rotatably arranged in the two rotating seats respectively, and the first rotating plate is rotatably connected with the second rotating plate; One end of the first rotating plate away from the second rotating plate is a retractable structure; A first sliding groove is provided on one side of the first rotating plate close to the first side surface, and the sliding block is slidably arranged in the first sliding groove.

3. The sampling device according to claim 2, characterized in that: A first slot is formed on the upper end surface of the first rotating plate, and first through holes penetrating the two sides of the first rotating plate are formed on both sides of the first slot; A first clamping block is fixedly disposed on the lower end surface of the second rotating plate, the first clamping block corresponds to the first clamping slot, and a second through hole corresponding to the first through hole penetrates the first clamping block; The first clamping block of any sampling component is clamped with the first clamping slot of one of the adjacent sampling components and is fixedly connected via a fixing component.

4. The sampling device according to claim 3, characterized in that: The fixing assembly includes a plug-in rod, the plug-in rod corresponds to the first through hole and the second through hole, a limit block is provided at one end of the plug-in rod, and a threaded rod is fixedly connected to the other end of the plug-in rod, and a nut is threadedly connected to the threaded rod.

5. The sampling device according to claim 1, characterized in that: The upper end surface of the sampling tube is provided with a connecting block, the connecting block is provided with a second slot, one end of the connecting block is rotatably provided with a rotating rod, the rotating rod can rotate to open one end of the second slot, and the end of the rotating rod away from the rotating shaft is threadedly connected to the connecting block by a bolt; A second clamping block is fixedly provided on the lower end surface of the sampling tube; The second card block is engaged with the second card slot.

6. The sampling device according to claim 5, characterized in that: The rotating rod is arranged at one end of the connecting block corresponding to the third side surface.

7. The sampling device according to claim 1, characterized in that: One end of the sealing plug that is sealed with the sampling port is coated with a silicone pad.

8. The sampling device according to any one of claims 1 to 7, characterized in that: An extension plate is detachably provided between the sampling components, and the extension plate is in the shape of a triangular prism, and the top and bottom of the extension plate are completely consistent with the top and bottom structures of the sampling tube; A cover opening assembly is provided on a side of the extension plate corresponding to the first side surface of the sampling tube.

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