Pool sampling device

Abstract

The utility model discloses a pool sampling device which comprises a supporting rod, a rotating disc arranged on one side of the supporting rod and a fixing plate arranged on the other side of the supporting rod, the rotating disc is connected with one side of a lead screw, the other side of the lead screw is arranged on the fixing plate in a sleeved mode, and a guide rod is arranged on the fixing plate in the axial direction of the lead screw; a connecting block which is arranged on the guide rod in a penetrating and sleeving mode is arranged on the lead screw in a threaded connection mode, an outer cover mechanism used for shielding dirt for the lead screw is arranged on one side of the connecting block, and at least two suction mechanisms are arranged on the other side of the connecting block. The rotary table and the lead screw are arranged to drive the connecting block and the suction mechanism to move synchronously so as to adjust the sampling depth; and the arranged outer cover mechanism not only can avoid the situation that the sampling depth adjustment smoothness is affected due to the fact that dirt remains on the lead screw, but also can prevent the situation that the sampling depth is inaccurate.

Description

Technical Field

[0001] This utility model relates to the field of water purification and treatment technology, and in particular to a water pool sampling device. Background Technology

[0002] Urban water treatment processes are generally determined based on the utilization or discharge destination of urban wastewater and the natural purification capacity of the water body, thus establishing the appropriate treatment level and corresponding treatment technology. The treated water, whether used for industrial, agricultural, or groundwater recharge purposes, must meet the relevant national water quality standards.

[0003] Modern water purification technology, classified by treatment level, can be divided into primary, secondary, and tertiary treatment processes. Primary treatment uses physical methods, such as filtration and sedimentation, to remove insoluble suspended solids and floating matter from the water. Secondary treatment mainly uses biological methods, that is, the process of material transformation through the metabolism of microorganisms, oxidizing and degrading various complex organic matter in the water into simpler substances. Biological treatment has certain requirements for water quality, water temperature, dissolved oxygen content, and pH value. Tertiary treatment, based on primary and secondary treatment, uses physical and chemical methods such as coagulation, filtration, ion exchange, and reverse osmosis to remove poorly soluble organic matter, phosphorus, nitrogen, and other nutrients from the water.

[0004] Primary treatment is pretreatment, with the treatment process being the main focus. The treated water generally meets discharge standards. Tertiary treatment is advanced treatment, producing better effluent quality, sometimes even meeting drinking water standards. However, it is expensive and rarely used except in some extremely water-scarce countries and regions. Currently, many cities in my country are building and expanding secondary water treatment plants to address the increasingly serious water pollution problem. Therefore, water treatment plants frequently need to sample and test the water in their tanks. Existing sampling devices can only sample and test a single point in the tank and cannot achieve stratified sampling and testing. Utility Model Content

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a water pool sampling device that is both easy to locate quickly and can achieve stratified sampling.

[0006] To solve the above-mentioned technical problems, the present invention provides a water tank sampling device, including a support rod, a turntable disposed on one side of the support rod, and a fixed plate disposed on the other side of the support rod. The turntable is connected to one side of a lead screw, and the other side of the lead screw is sleeved on the fixed plate. A guide rod is provided on the fixed plate along the axial direction of the lead screw. A connecting block is screwed onto the lead screw and sleeved on the guide rod. An outer cover mechanism for shielding the lead screw from dirt is provided on one side of the connecting block, and at least two suction mechanisms are provided on the other side.

[0007] The above structure features a support rod supporting a turntable. The rotation of the turntable drives a connecting block via a lead screw to move along the axial direction of the guide rod, thereby synchronizing the movement of at least two suction mechanisms connected to the connecting block and achieving the purpose of adjusting the sampling depth. Simultaneously, to prevent dirt residue from remaining on the lead screw and affecting the smoothness of adjustment and the accuracy of sampling depth adjustment, an outer cover mechanism is connected to the connecting block to cover the lead screw and isolate it from the water flow in the pool. The structure is simple, compact, and easy to operate.

[0008] To facilitate installation and simplify the structure, preferably, a mounting plate is provided on the support rod, one side of the lead screw is connected to the middle of the turntable, and the other side passes through the mounting plate and is rotatably sleeved on the fixed plate; one end of the guide rod is connected to the fixed plate, and the other end is connected to the mounting plate.

[0009] To facilitate quick adjustment and identification of the sampling depth, and to simplify the structure, an extension rod is preferably screwed onto one side of the support rod, and a first scale line is provided on the extension rod.

[0010] To facilitate quick adjustment and identification of sampling depth, preferably, a second scale line is provided on the support rod at the position corresponding to the lead screw, and a pointer extending towards the second scale line is provided on the connecting block.

[0011] To facilitate installation and simplify the structure, the outer cover mechanism preferably includes a first folding sleeve with one side connected to one side of the connecting block and wrapped around the outside of the lead screw, and a second folding sleeve with one side connected to the other side of the connecting block and wrapped around the outside of the lead screw. The other side of the first folding sleeve is connected to the mounting plate, and the other side of the second folding sleeve is connected to the fixing plate.

[0012] For ease of use, preferably, each of the suction mechanisms includes a sampling tube disposed on the connecting block, with a one-way valve connected to one side of each sampling tube and an air pipe connected to an air pump on the other side.

[0013] To facilitate stratified sampling and avoid sampling interference, preferably, the sampling tube includes a first sampling tube and a second sampling tube spaced apart on the connecting block along the axial direction of the lead screw, and the first sampling tube and the second sampling tube are staggered along the longitudinal direction of the lead screw axis.

[0014] For ease of sampling, preferably, a discharge valve is connected to both the first and second sampling tubes.

[0015] To facilitate stratified individual or simultaneous sampling, preferably, the trachea includes a first trachea connected to a first sampling tube and a second trachea connected to a second sampling tube, with a switch valve connected to both the first and second tracheas.

[0016] To facilitate the proper placement of the air tube, preferably, a positioning buckle for limiting the air tube's insertion is also provided on the connecting block.

[0017] Beneficial effects: This utility model is equipped with a turntable and a lead screw, which drive the connecting block and the suction mechanism to move synchronously in order to adjust the sampling depth; the outer cover mechanism can not only prevent dirt residue on the lead screw from affecting the smoothness of the sampling depth adjustment, but also prevent inaccurate sampling depth. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 for Figure 1 The left view.

[0021] Figure 3 This is a schematic diagram of the one-way valve used in this embodiment.

[0022] The meanings of the labels in the attached diagram are as follows:

[0023] Support rod-1; Turntable-10; Fixing plate-11; Lead screw-12; Guide rod-13; Extension rod-14; First scale line-15; Second scale line-16; Mounting plate-17;

[0024] Connecting block-2; Pointer-20; First folding sleeve-21; Second folding sleeve-22; Positioning buckle-23;

[0025] Sampling tube-3; one-way valve-30; air tube-31; first air tube-311; second air tube-312; first sampling tube-321; second sampling tube-322; discharge valve-33; switch valve-34. Detailed Implementation

[0026] Depend on Figures 1 to 3 As shown, this utility model includes a support rod 1, a turntable 10 disposed on one side of the support rod 1, and a fixing plate 11 disposed on the other side of the support rod 1. The turntable 10 is connected to one side of a lead screw 12, and the other side of the lead screw 12 is sleeved on the fixing plate 11. A guide rod 13 is provided on the fixing plate 11 along the axial direction of the lead screw 12. A connecting block 2 is screwed onto the lead screw 12 and sleeved on the guide rod 13. An outer cover mechanism for shielding the lead screw from dirt is provided on one side of the connecting block 2, and at least two suction mechanisms are provided on the other side.

[0027] Specifically, a mounting plate 17 is provided on the support rod 1, one side of the lead screw 12 is connected to the middle of the turntable 10, and the other side passes through the mounting plate 17 and is rotatably sleeved on the fixed plate 11; one end of the guide rod 13 is connected to the fixed plate 11, and the other end is connected to the mounting plate 17.

[0028] An extension rod 14 is screwed onto one side of the support rod 1, and a first scale line 15 is provided on the extension rod 14; a second scale line 16 is provided on the support rod 1 at the position corresponding to the lead screw 12, and a pointer 20 extending towards the second scale line 16 is provided on the connecting block 2.

[0029] The outer cover mechanism includes a first folding sleeve 21 connected to one side of the connecting block 2 and wrapped around the outside of the lead screw 12, and a second folding sleeve 22 connected to the other side of the connecting block 2 and wrapped around the outside of the lead screw 12. The other side of the first folding sleeve 21 is connected to the mounting plate 17, and the other side of the second folding sleeve 22 is connected to the fixing plate 11.

[0030] Each of the suction mechanisms includes at least one sampling tube 3 disposed on the connecting block 2. One side of each sampling tube 3 is connected to a one-way valve 30, and the other side is connected to an air pump (not shown) via an air pipe 31.

[0031] The sampling tube 3 includes a first sampling tube 321 and a second sampling tube 322 spaced apart on the connecting block 2 along the axial direction of the lead screw 12. The first sampling tube 321 and the second sampling tube 322 are staggered along the longitudinal direction of the lead screw 12. A discharge valve 33 is connected to both the first sampling tube 321 and the second sampling tube 322.

[0032] In addition, the trachea 31 includes a first trachea 311 connected to the first sampling tube 321 and a second trachea 312 connected to the second sampling tube 322, and a switch valve 34 is connected to both the first trachea 311 and the second trachea 312.

[0033] The connecting block 2 is also provided with a positioning buckle 23 for limiting the air supply pipe 31 to pass through.

[0034] The working principle of this utility model is as follows:

[0035] like Figures 1 to 3As shown, before use, push the air pump to the edge of the pool and connect the power supply. Then, if the sampling depth is deep and greater than the length of the support rod 1, the extension rod 14 needs to be screwed on so that it can be manually inserted into the pool. The position of the connecting block 2 on the lead screw 12 can be calculated by referring to the first scale line 15 on the extension rod 14, that is, the connecting block 2 should be moved to the position on the lead screw 12 to match the sampling depth of the sampling tube 3. Then, manually rotate the turntable 10 to drive the lead screw 12 to rotate. The connecting block 2 screwed to the lead screw 12 moves along the axial direction of the guide rod 13. Since the connecting block 2 is equipped with a pointer 20 extending to the second scale line 16, the adjustment can be quickly identified, making it convenient to use.

[0036] In use, first open the switch valve 34 that connects the first air pipe 311 and the second air pipe 312, then turn on the air pump and simultaneously inject air into the first sampling pipe 321 and the second sampling pipe 322. Since both the first sampling pipe 321 and the second sampling pipe 322 are equipped with one-way valves 30, the one-way valves 30 are not affected by the water depth pressure under the air pressure input by the air pump during the process of extending the sampling pipe 3 into the water pool, thus preventing water from other water layers from flowing into the sampling pipe 3.

[0037] When the first sampling tube 321 and the second sampling tube 322 are moved to the sampling position, the air pump is turned on to the suction state to extract the air from the first sampling tube 321 and the second sampling tube 322. The one-way valve 30 is opened by the negative pressure force, and the water at the sampling position flows into the first sampling tube 321 and the second sampling tube 322 through the one-way valve 30 respectively.

[0038] After sampling is completed, turn on the air pump and inject air into the first sampling tube 321 and the second sampling tube 322. At this time, the water in the sampling tube 3 acts as a hydraulic medium, transmitting the air pressure to the one-way valve 30 to close the one-way valve 30. This also balances the air pressure in the sampling tube 3 to prevent material spraying or difficulty in opening the switch valve 34 during subsequent sampling. Finally, pull the support rod 1 out of the water tank and open the switch valve 34 to collect the samples.

[0039] During use, as the connecting block 2 moves, the first folding sleeve 21 and the second folding sleeve 22 undergo corresponding shape changes. For example, when the connecting block 2 moves downward, the first folding sleeve 21 is stretched and the second folding sleeve 22 is contracted. When the connecting block 2 moves upward, the first folding sleeve 21 is contracted and the second folding sleeve 22 is stretched. Throughout the process, the two folding sleeves always cover the outside of the lead screw 12, which can prevent impurities in the water from remaining in the spiral groove of the lead screw 12, thus preventing any impact on the smoothness of adjustment and the accuracy of the sampling depth adjustment.

[0040] The one-way valve in this embodiment is existing technology. Its usage process will be explained below, in conjunction with this embodiment. Figure 3 As shown, when the one-way valve 30 is closed, the valve core a in the one-way valve 30 is pushed into the valve port c position by the spring b, preventing gas from flowing out. However, as the depth of the pool changes, the water pressure increases. To prevent water from the non-sampling layer from flowing into the sampling tube 3, an air pump is needed to supplement the pressure of the valve core a. During sampling, the air pump sucks out the air in the sampling tube 3, creating a negative pressure effect. Combined with the water depth pressure, the valve core a is pushed and compresses the spring b. At this time, the one-way valve 30 is open, and the water at the sampling position can flow smoothly into the sampling tube 3 through the through hole on the valve core a. Figure 3 (The flow direction from right to left is shown in the position shown); after sampling is completed, turn on the air pump to the air injection state to balance the air pressure in the sampling tube 3. After the air pressure is balanced, under the action of the air injection pressure and the elastic force of the spring b, the spring b will push the valve core a again. The valve core a is pushed into the valve port c by the spring b, which can prevent the sampled water from flowing out.

[0041] In order to facilitate the use of air inflation and air extraction, the air pump is a two-way air pump; at the same time, since some sampled water is lost when switching between air extraction and air extraction, the water extraction volume should be set to be appropriately greater than the sampling volume.

[0042] Furthermore, in this embodiment, since the vertical depth positions of the two sampling tubes 3 are different and their horizontal positions are also staggered, sampling them individually will not cause interference in use. It is only necessary to close the switch valve 34 on the corresponding first air tube 311 or second air tube 312, which is flexible in use. Moreover, this embodiment is not unique, and the number of sampling tubes 3 should be determined according to the specific use case. Similarly, the setting of the air tubes 31 should also be adapted accordingly.

Claims

1. A water pool sampling device, characterized in that: It includes a support rod (1), a turntable (10) disposed on one side of the support rod (1), and a fixing plate (11) disposed on the other side of the support rod (1). The turntable (10) is connected to one side of a lead screw (12), and the other side of the lead screw (12) is sleeved on the fixing plate (11). A guide rod (13) is provided on the fixing plate (11) along the axial direction of the lead screw (12). A connecting block (2) is screwed onto the lead screw (12) and sleeved on the guide rod (13). An outer cover mechanism for shielding the lead screw from dirt is provided on one side of the connecting block (2), and at least two suction mechanisms are provided on the other side.

2. The water tank sampling device as described in claim 1, characterized in that: An mounting plate (17) is provided on the support rod (1). One side of the lead screw (12) is connected to the middle of the turntable (10), and the other side passes through the mounting plate (17) and is rotatably sleeved on the fixed plate (11). One end of the guide rod (13) is connected to the fixed plate (11), and the other end is connected to the mounting plate (17).

3. The water pool sampling device as described in claim 2, characterized in that: An extension rod (14) is screwed onto one side of the support rod (1), and a first scale line (15) is provided on the extension rod (14).

4. The water tank sampling device as described in claim 1, characterized in that: A second scale line (16) is provided on the support rod (1) at the position corresponding to the lead screw (12), and a pointer (20) extending towards the second scale line (16) is provided on the connecting block (2).

5. A water pool sampling device as described in claim 2, characterized in that: The outer cover mechanism includes a first folding sleeve (21) connected to one side of the connecting block (2) and wrapped around the outside of the lead screw (12), and a second folding sleeve (22) connected to the other side of the connecting block (2) and wrapped around the outside of the lead screw (12). The other side of the first folding sleeve (21) is connected to the mounting plate (17), and the other side of the second folding sleeve (22) is connected to the fixing plate (11).

6. A water pool sampling device as described in claim 2, characterized in that: Each of the suction mechanisms includes a sampling tube (3) disposed on the connecting block (2). One side of each sampling tube (3) is connected to a one-way valve (30), and the other side is connected to an air pump via an air pipe (31).

7. A water pool sampling device as described in claim 6, characterized in that: The sampling tube (3) includes a first sampling tube (321) and a second sampling tube (322) spaced apart on the connecting block (2) along the axial direction of the lead screw (12), and the first sampling tube (321) and the second sampling tube (322) are staggered along the longitudinal direction of the lead screw (12).

8. A water pool sampling device as described in claim 7, characterized in that: A discharge valve (33) is connected to both the first sampling tube (321) and the second sampling tube (322).

9. A water pool sampling device as described in claim 7, characterized in that: The trachea (31) includes a first trachea (311) connected to the first sampling tube (321) and a second trachea (312) connected to the second sampling tube (322). A switch valve (34) is connected to both the first trachea (311) and the second trachea (312).

10. A water pool sampling device as described in claim 6, characterized in that: The connecting block (2) is also provided with a positioning buckle (23) for limiting the air supply pipe (31) to pass through.

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