Sewage sampler

Abstract

The utility model discloses a sewage sampler which comprises a sampling barrel and a barrel cover movably arranged at the top of the sampling barrel, the barrel cover is clamped or hinged to the top of the sampling barrel through threads, and a plurality of groups of water inlets are formed in the side wall of the barrel cover in the circumferential direction of the bottom of the barrel cover; the upper portion of the sampling barrel is movably connected with the barrel cover, the lower portion of the sampling barrel is provided with a water blocking assembly, the water blocking assembly comprises a connecting shaft fixed to the bottom of the sampling barrel, and one-way water blocking pieces are rotationally arranged on the two sides of the connecting shaft. According to the sewage sampler disclosed by the utility model, the complexity of water body sampling can be greatly reduced, a water body with a specified depth can be sampled, and a hidden pollution source in the water body can be conveniently positioned; meanwhile, when a turbid water body or the bottom of the water body is sampled, underwater sludge can be sampled synchronously, and a water body sample and an underwater sludge sample can be obtained at the same time without standing after extraction; and the influence of water body resistance on the sampler in the water body recovery process can be greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the field of sewage treatment equipment, and relates to a sampling device, specifically a sewage sampler. Background Art

[0002] Environmental engineering is a branch of environmental science, mainly studying how to protect and rationally utilize natural resources. When protecting water resources, it is necessary to sample sewage, then detect it, determine the components of the detected substances in the sewage, and then determine the treatment plan. Existing sampling devices generally consist of a sampling cylinder and a connecting pull rope for sewage sampling in places with large elevation differences.

[0003] When the sampling cylinder is thrown into the water, since only one end of the sampling cylinder is open, there is a cavity inside, resulting in a large buoyancy of the sampling cylinder, so that the sampling cylinder will float on the water surface. It is necessary to manually shake the pull rope back and forth to turn over and pour the sampling cylinder in order to introduce sewage into the sampling cylinder, which increases the complexity of operation.

[0004] In addition, the more polluted the water body is, the closer it is to the pollution source. However, in addition to the direct discharge from the sewage outlet of industrial production, some pollution sources exist at the bottom of the water body. For example, pollutants such as batteries, waste chemical reagent packages, and medical waste are buried in the bottom sludge. During the sampling process of the current sewage sampler, most of the sampled water body is concentrated on the surface water body of the sewage, and it is impossible to directly obtain water body samples with a certain depth. Content of the Utility Model

[0005] In order to solve the above deficiencies in the prior art, the utility model aims to provide a sewage sampler to achieve the purpose of reducing the complexity of operation, improving the sampling accuracy, and separating mud.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A sewage sampler includes a sampling cylinder and a cylinder cover movably arranged on the top of the sampling cylinder. The cylinder cover is clamped or hinged to the top of the sampling cylinder by threads. The cylinder cover is conical, and multiple groups of water inlets are arranged along the circumferential direction of the bottom of the side wall of the cylinder cover.

[0008] The sampling cylinder is a tubular structure, with a cylinder cover movably connected to the upper part and a water blocking component arranged at the lower part. The water blocking component includes a connecting shaft fixed to the bottom of the sampling cylinder, and one-way water blocking pieces are rotatably arranged on both sides of the connecting shaft.

[0009] As a limitation of the utility model, the sampling cylinder further includes a ball, the ball is movably arranged in the upper part of the sampling cylinder, its ball diameter is larger than the inner diameter of the sampling cylinder, and it is movably arranged between the cylinder cover and the sampling cylinder.

[0010] As a further limitation of the present utility model, the inside of the ball is hollow.

[0011] As another limitation of the present utility model, the sampling cylinder further includes a filter screen disposed in the middle inside the sampling cylinder.

[0012] As a third limitation of the present utility model, a drain pipe and a sludge discharge pipe are further provided on the side wall of the sampling cylinder. The drain pipe is disposed on the upper side corresponding to the filter screen inside the sampling cylinder, and the sludge discharge pipe is disposed on the upper side corresponding to the water blocking component inside the sampling cylinder.

[0013] As a fourth limitation of the present utility model, a connecting ring is fixedly provided on the top of the cylinder cover.

[0014] Due to the adoption of the above technical solutions, compared with the prior art, the beneficial effects obtained by the present utility model are as follows:

[0015] (1) For a sewage sampler involved in the present utility model, by providing a water blocking component with a one-way water blocking function at the bottom, the sampler can perform water body sampling without shaking the towing rope after falling into the water, greatly reducing the sampling complexity.

[0016] (2) For a sewage sampler involved in the present utility model, by providing balls with a ball diameter larger than the inner diameter of the sampling cylinder and a hollow inside in the inner part of the cylinder cover and the upper part of the sampling cylinder, after entering the water body, they float upward under the action of the buoyancy of the water body from bottom to top, so that the water body sample in the sampling cylinder is continuously replaced as the sampler falls deeper in the water body. After the sampling is completed, when the sampler is pulled upward, the balls are fixed to the upper part of the sampling cylinder under the action of the water body resistance, preventing the water body sample in the sampling cylinder from overflowing, thereby improving the accuracy of water body sampling and enabling the sampler to take water body samples at a specified depth.

[0017] (3) For a sewage sampler involved in the present utility model, through its conical cylinder cover, the resistance when retrieving the sampler upward in the water body can be reduced; at the same time, a water inlet is provided on the side surface of the cylinder cover, which can balance the water body resistance around the balls, avoiding the formation of a vacuum space between the balls and the cylinder cover or the sampling cylinder and affecting the sampling accuracy.

[0018] (4) For a sewage sampler involved in the present utility model, by providing a filter screen in the sampling cylinder, when sampling near the bottom of the water body, the sludge at the bottom of the water can be prevented from spreading in the sampling cylinder, avoiding the need to let the sampling cylinder stand and precipitate before sampling. The drain pipe disposed on the upper side corresponding to the filter screen inside the sampling cylinder can be directly opened to obtain a clean water body sample, and at the same time, the sludge discharge pipe disposed on the upper part corresponding to the water blocking component at the bottom of the sampling cylinder can be opened to collect and sample the sludge, achieving simultaneous sampling of the water body and the sludge at the bottom of the water body.

[0019] In summary, a sewage sampler involved in the present utility model can greatly reduce the cumbersome nature of water body sampling, can sample the water body at a specified depth, and is convenient for positioning hidden pollution sources inside the water body. At the same time, when sampling turbid water bodies or sampling the bottom of the water body, it can synchronously sample the bottom sludge. After extraction, there is no need to stand still, and water body samples and bottom sludge samples can be obtained simultaneously. In addition, the present utility model can also greatly reduce the influence of water body resistance on the sampler during the recovery process inside the water body.

[0020] The present utility model is applicable to water body sampling work in multiple fields such as environmental protection, industrial emissions, water body monitoring, and sewage treatment, and is used to collect sewage samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following further describes the present utility model in detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0023] Figure 2 is a schematic diagram of the internal structure of an embodiment of the present utility model.

[0024] In the figure: 1, cylinder cover; 2, sampling cylinder; 3, sludge discharge pipe; 4, drain pipe; 5, water inlet; 6, connecting ring; 7, ball; 8, filter screen; 9, water blocking component. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following describes the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present utility model, and are not used to limit the present utility model.

[0026] Embodiment A sewage sampler

[0027] As Figures 1 to 2 shown, this embodiment includes a sampling cylinder 2 and a cylinder cover 1 movably arranged on the top of the sampling cylinder 2. Among them, the cylinder cover 1 is snap-connected or hinged to the top of the sampling cylinder 2 by threads. The cylinder cover 1 is conical, and multiple groups of water inlets 5 are arranged along the circumferential direction of the bottom of the side wall of the cylinder cover 1;

[0028] The sampling cylinder 2 is a tubular structure, with a cylinder cover 1 movably connected to the upper part and a water blocking component 9 arranged at the lower part. The water blocking component 9 includes a connecting shaft fixed to the bottom of the sampling cylinder, and one-way water blocking pieces are rotatably arranged on both sides of the connecting shaft.

[0029] The sampling cylinder 2 further includes a hollow ball 7 inside. The ball 7 is movably arranged in the upper part of the sampling cylinder 2, and its ball diameter is larger than the inner diameter of the sampling cylinder 2, and it is movably arranged between the cylinder cover 1 and the sampling cylinder 2.

[0030] The sampling cylinder 2 further includes a filter screen 8 arranged in the middle inside the sampling cylinder 2.

[0031] A drain pipe 4 and a sludge discharge pipe 3 are also arranged on the side wall of the sampling cylinder 2. The drain pipe 4 is arranged above the corresponding position of the internal filter screen 8 of the sampling cylinder 2, and the sludge discharge pipe 3 is arranged above the corresponding position of the water blocking component 9 inside the sampling cylinder 2.

[0032] A connecting ring 6 is fixedly arranged on the top of the cylinder cover 1.

[0033] When using this embodiment, tie the towing rope to the connecting ring 6 and sink this embodiment into the water body. During the sinking process of this embodiment, the water body flushes the water blocking component 9 inward. The one-way water blocking pieces in the water blocking component 9 rotate towards the inside of the sampling cylinder 2 around the connecting axis, and the water body enters the inside of the sampling cylinder 2 through the water blocking component 9. During the sinking process of the sampling cylinder 2, the ball stuck on the upper part of the sampling cylinder 2 floats under the buoyancy of the water body. After the water body fills the inside of the sampling cylinder 2, it overflows from the water inlet 5 opened on the side wall of the cylinder cover 1, so that the water sample in the sampling cylinder 2 is always consistent with the water body at the same depth;

[0034] After reaching the specified depth, lift the towing rope upward to recover this embodiment. During the recovery process, due to the inertial resistance of the sample water body inside the sampling cylinder 2, the one-way water blocking piece at the bottom of the sampling cylinder 2 rotates outward towards the outside of the sampling cylinder 2. The one-way water blocking pieces rotatably arranged on both sides of the connecting axis block each other when rotating to the horizontal position, forming a circular bottom plate that completely seals the bottom of the sampling cylinder 2 to prevent the water sample from overflowing from the bottom of the sampling cylinder 2; at the same time, the ball movably arranged on the upper part of the sampling cylinder 2 is fixed on the upper part of the sampling cylinder 2 by the water body entering from the water inlet 5 opened on the side wall of the cylinder cover 1 under the action of the water body resistance, sealing the upper part of the sampling cylinder 2 to prevent the sample water body from overflowing from the upper part of the sampling cylinder 2. At this time, the water sample inside the sampling cylinder 2 is the water sample at the specified depth of the water body, and the water sample in the sampling cylinder 2 will not be replaced due to the depth change during the recovery process.

[0035] After recovery, since a filter screen 8 is arranged inside the sampling cylinder 2, the water sample is separated. The upper part of the filter screen 8 is the clarified water sample, and the lower part of the filter screen 8 is the turbid water sample. When sampling, if only detecting the water body, open the drain pipe 4 to sample the clarified water sample; if detecting the suspended solid substances in the water body, open the sewage pipe 3 to detect the turbid water body.

[0036] It should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the above embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sewage sampler, characterized in that: The sampler includes a sampling cylinder and a cylinder cover movably arranged at the top of the sampling cylinder. The cylinder cover is snap-connected or hinged to the top of the sampling cylinder by threads. The cylinder cover is conical, and a plurality of groups of water inlets are arranged along the circumferential direction of the bottom of the side wall of the cylinder cover. The sampling cylinder is a tubular structure, with the cylinder cover movably connected to the upper part and a water blocking component arranged at the lower part. The water blocking component includes a connecting shaft fixed to the bottom of the sampling cylinder, and one-way water blocking sheets are rotatably arranged on both sides of the connecting shaft.

2. The sewage sampler according to claim 1, wherein: The sampling cylinder further includes balls. The balls are movably arranged in the upper part of the sampling cylinder, and the ball diameter is larger than the inner diameter of the sampling cylinder. The balls are movably arranged between the cylinder cover and the sampling cylinder.

3. The sewage sampler according to claim 2, characterized in that: The inside of the balls is hollow.

4. The sewage sampler according to claim 1, characterized in that: The sampling cylinder further includes a filter screen arranged in the middle of the inner side of the sampling cylinder; a drain pipe and a sludge discharge pipe are further arranged on the side wall of the sampling cylinder. The drain pipe is arranged above the corresponding position of the filter screen inside the sampling cylinder, and the sludge discharge pipe is arranged above the corresponding position of the water blocking component inside the sampling cylinder.

5. The sewage sampler according to claim 1, characterized in that: A connecting ring is fixedly arranged at the top of the cylinder cover.

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