Sampling device for sewage detection

Abstract

The utility model discloses a sampling device for sewage detection, which comprises a sampling tube, a piston is connected in the sampling tube in a sealing and sliding manner, a pull rod is fixedly mounted at the top of the piston, two mounting frames are fixedly mounted on the side wall of the sampling tube, threaded grooves are formed in the bottoms of the two mounting frames, and the threaded grooves are communicated with the piston. Two mounting frames are arranged on the bottom of the sampling pipe, sliding blocks are slidably connected in the two mounting frames, two arc-shaped rods are fixedly connected between the two sliding blocks, a fixing mechanism is arranged between one mounting frame and the opposite sliding block, supporting mechanisms are fixedly mounted at the bottoms of the two sliding blocks, and a filtering mechanism is arranged at the bottom of the sampling pipe. The top of the filtering mechanism is propped against the bottom of the sampling pipe. The sewage sampling device is reasonable in structural design, when sewage is pumped, the height of the pumping end of the sampling device can be adjusted according to the depth of the sewage, so that the sampling end is kept stable during water pumping, and the situation that sundries deposited at the bottom of the sewage are sucked in to affect normal proceeding of subsequent sewage detection operation is avoided.

Description

Technical Field

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

[0002] With the development of society, there is more and more pollution, and sampling and detection need to be carried out regularly. The commonly used device for sampling is a sewage sampler, which is used to collect water samples of polluted water bodies, and through analysis and determination, the basic data of water body pollution can be obtained.

[0003] In the prior art, an extraction type sewage sampler is generally used to sample sewage. When sampling, the extraction end of the sewage sampler is inserted into the water, and then the pull rod is pulled to extract sewage. However, when the operator holds the sampler by hand, it is difficult to keep the sewage sampler stable. When extracting, the extraction end of the sewage sampler is easy to reach the bottom of the sewage, sucking in the sundries deposited at the bottom of the sewage. A large amount of sundries are contained in the extracted sewage, which affects the subsequent detection. Therefore, we designed a sampling device for sewage detection to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems in the prior art, and a sampling device for sewage detection is proposed.

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

[0006] A sampling device for sewage detection includes a sampling tube, a piston is hermetically and slidably connected in the sampling tube, a pull rod is fixedly installed at the top of the piston, two mounting frames are fixedly installed on the side wall of the sampling tube, threaded grooves are formed at the bottoms of the two mounting frames, sliders are slidably connected in the two mounting frames, two arc-shaped rods are fixedly connected between the two sliders, a fixing mechanism is arranged between one of the mounting frames and the relative slider, support mechanisms are fixedly installed at the bottoms of the two sliders, a filtering mechanism is arranged at the bottom of the sampling tube, the top of the filtering mechanism abuts against the bottom of the sampling tube, and the filtering mechanism extends into the two threaded grooves and is threadedly connected with them.

[0007] Preferably, the fixing mechanism includes a plurality of uniformly arranged clamping grooves formed at the bottom of the inner part of the mounting frame, a plurality of indicating lines corresponding to the clamping grooves are uniformly arranged on the side wall of the mounting frame, a threaded rod is threaded through the slider, and the threaded rod extends into one of the clamping grooves and abuts against the inner wall of the clamping groove.

[0008] Preferably, the support mechanism includes a support rod fixedly installed at the bottom of the slider, and a support plate is fixedly installed at the bottom end of the support rod.

[0009] Preferably, the filtering mechanism includes a sleeve placed at the bottom of the sampling tube. The top of the sleeve abuts against the bottom of the sampling tube. A filter screen is fixedly installed on the sleeve. Two connecting plates are fixedly installed on the side wall of the sleeve. A locking bolt is slidably connected through each of the two connecting plates. The locking bolt extends into the opposite thread groove and is threadedly connected thereto.

[0010] Preferably, a limiting member is fixedly installed on the inner wall of the sampling tube. The pull rod passes through the limiting member and is slidably connected thereto.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. Through the settings of the installation frame, slider, fixing mechanism and supporting mechanism, when pumping sewage, it can adjust the height of the extraction end of the sampling tube according to the depth of the sewage, so as to keep it stable during pumping, and avoid sucking in the sundries deposited at the bottom of the sewage and affecting the normal progress of subsequent sewage detection operations.

[0013] 2. Through the setting of the filtering mechanism, it can filter out larger sundries in the sewage when pumping sewage, and avoid excessive sundries from affecting the detection of sewage.

[0014] In summary, the structure of the present utility model is reasonably designed. When pumping sewage, it can adjust the height of the extraction end of the sampler according to the depth of the sewage, so as to keep it stable during pumping, and avoid sucking in the sundries deposited at the bottom of the sewage and affecting the normal progress of subsequent sewage detection operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a sampling device for sewage detection proposed by the present utility model;

[0016] Figure 2 is a structural sectional view of a sampling device for sewage detection proposed by the present utility model;

[0017] Figure 3 is Figure 2 an enlarged view of the structure at A in

[0018] In the figure: 1 sampling tube, 2 piston, 3 pull rod, 4 limiting member, 5 installation frame, 6 clamping groove, 7 slider, 8 threaded rod, 9 arc rod, 10 support rod, 11 support plate, 12 sleeve, 13 filter screen, 14 connecting plate, 15 locking bolt, 16 thread groove, 17 indication line. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] Refer to Figures 1-3 , a sampling device for sewage detection, including a sampling pipe 1. A limiting member 4 is fixedly installed on the inner wall of the sampling pipe 1. A pull rod 3 passes through the limiting member 4 and is slidably connected thereto. A piston 2 is hermetically slidably connected in the sampling pipe 1. The top of the piston 2 is fixedly installed with a pull rod 3. Two mounting frames 5 are fixedly installed on the side wall of the sampling pipe 1. Thread grooves 16 are opened at the bottoms of the two mounting frames 5. Sliders 7 are slidably connected in the two mounting frames 5. Two arc-shaped rods 9 are fixedly connected between the two sliders 7. A fixing mechanism is provided between one of the mounting frames 5 and the opposite slider 7. The fixing mechanism includes a plurality of uniformly arranged clamping grooves 6 opened at the bottom of the inner part of the mounting frame 5. A plurality of indicating lines 17 corresponding to the clamping grooves 6 are uniformly arranged on the side wall of the mounting frame 5. A threaded rod 8 is threadedly connected through the slider 7. The threaded rod 8 extends into one of the clamping grooves 6 and abuts against the inner wall thereof;

[0021] Support mechanisms are fixedly installed at the bottoms of the two sliders 7. The support mechanism includes a support rod 10 fixedly installed at the bottom of the slider 7. The bottom end of the support rod 10 is fixedly installed with a support plate 11. Through the settings of the mounting frame 5, the slider 7, the fixing mechanism and the support mechanism, when extracting sewage, it can adjust the height of the extraction end of the sampling pipe 1 according to the depth of the sewage, so that it remains stable during pumping, and avoid sucking the sundries deposited at the bottom of the sewage into the sampling pipe, which affects the normal progress of subsequent sewage detection operations;

[0022] A filtering mechanism is provided at the bottom of the sampling pipe 1. The top of the filtering mechanism abuts against the bottom of the sampling pipe 1. The filtering mechanism extends into the two thread grooves 16 and is threadedly connected thereto. The filtering mechanism includes a sleeve 12 placed at the bottom of the sampling pipe 1. The top of the sleeve 12 abuts against the bottom of the sampling pipe 1. A filter screen 13 is fixedly installed on the sleeve 12. Two connecting plates 14 are fixedly installed on the side wall of the sleeve 12. Locking bolts 15 are slidably connected through the two connecting plates 14. The locking bolts 15 extend into the opposite thread grooves 16 and are threadedly connected thereto. Through the setting of the filtering mechanism, it can filter out larger sundries in the sewage when extracting sewage, and avoid excessive sundries from affecting the detection of sewage.

[0023] The functional principle of the present utility model can be elaborated through the following operation modes:

[0024] When sewage needs to be extracted, first, the operator rotates the threaded rod 8 so that the threaded rod 8 disengages from the uppermost clamping groove 6. At this time, the slider 7 slides to the lowest position under the action of gravity. Then, the operator inserts the support plate 11 on the support rod 10 into the water so that the bottom of the support plate 11 abuts against the bottom of the pool. Then, the operator operates to push the sampling tube 1 downward. The sampling tube 1 gradually moves downward. When the extraction end on the sampling tube 1 is completely immersed in the water, the operator observes the indicating line 17 on the mounting frame 5. When the center of the slider 7 is in the same plane as one of the indicating lines 17, the operator rotates the threaded rod 8 in the reverse direction so that the threaded rod 8 slides into the corresponding clamping groove 6. At this time, the sampling tube 1 is in a stable state and cannot slide down any further. The operator can then pull the pull rod 3 upward, and the pull rod 3 drives the piston 2 to slide upward, sucking the sewage into the sampling tube 1. When extracting sewage, the filter screen 13 on the sleeve 12 filters the sewage, blocking larger debris and preventing it from being sucked in together with the sewage.

[0025] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A sampling device for sewage detection, comprising a sampling tube (1), characterized in that: A piston (2) is sealingly and slidably connected inside the sampling tube (1), a pull rod (3) is fixedly installed on the top of the piston (2), two installation frames (5) are fixedly installed on the side wall of the sampling tube (1), the bottoms of the two installation frames (5) are provided with threaded grooves (16), sliders (7) are slidably connected inside the two installation frames (5), two arc-shaped rods (9) are fixedly connected between the two sliders (7), a fixing mechanism is provided between one of the installation frames (5) and the opposite slider (7), a supporting mechanism is fixedly installed on the bottoms of the two sliders (7), a filtering mechanism is provided at the bottom of the sampling tube (1), the top of the filtering mechanism is against the bottom of the sampling tube (1), and the filtering mechanism extends into the two threaded grooves (16) and is threadedly connected thereto.

2. The sampling device for sewage detection according to claim 1, characterized in that: The fixing mechanism comprises a plurality of evenly arranged snap-in grooves (6) formed on the bottom of the mounting frame (5); a plurality of indicator lines (17) corresponding to the snap-in grooves (6) are evenly arranged on the side wall of the mounting frame (5); a threaded rod (8) is threadedly connected through the slider (7); the threaded rod (8) extends into one of the snap-in grooves (6) and abuts against the inner wall thereof.

3. The sampling device for sewage detection according to claim 1, characterized in that: The support mechanism comprises a support rod (10) fixedly mounted on the bottom of the slider (7), and a support plate (11) is fixedly mounted on the bottom end of the support rod (10).

4. The sampling device for sewage detection according to claim 1, characterized in that: The filtering mechanism comprises a sleeve (12) placed on the bottom of the sampling tube (1), the top of the sleeve (12) abuts against the bottom of the sampling tube (1), a filter screen (13) is fixedly mounted on the sleeve (12), two connecting plates (14) are fixedly mounted on the side wall of the sleeve (12), locking bolts (15) are slidably connected through the two connecting plates (14), and the locking bolts (15) extend into opposite thread grooves (16) and are threadedly connected thereto.

5. The sampling device for sewage detection according to claim 1, characterized in that: A limiting member (4) is fixedly mounted on the inner wall of the sampling tube (1), and the pull rod (3) passes through the limiting member (4) and is slidably connected thereto.

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