Durable wastewater sampling equipment

Abstract

The utility model discloses durable wastewater sampling equipment, and relates to the field of environment detection sampling, the durable wastewater sampling equipment comprises a water taking pipe, the water taking pipe is provided with a water outlet, and the water outlet is movably provided with a plug valve assembly for controlling the opening and closing of the water outlet; wherein the plug valve assembly comprises an outer pulling block, a communicating shaft and an inner pressing block, the inner pressing block is fixed to the water outlet, the communicating shaft is movably arranged on the inner pressing block in a sleeving mode, the outer pulling block is fixed to the end, away from the inner pressing block, of the communicating shaft, and a gap for water flow to flow through is formed between the communicating shaft and the inner pressing block. The water outlet device has the effect that the water outlet of the sampler is more durable, and the situation of accidental loss caused by falling of the water outlet device during sample collection is reduced.

Description

Technical Field

[0001] This application relates to the technical field of environmental detection sampling, and in particular to a durable wastewater sampling device. Background Art

[0002] Environmental monitoring is a discipline that uses modern scientific and technological means such as chemistry, physics, biology, medicine, telemetry, remote sensing, and computers to monitor, measure, and control various marker data reflecting environmental quality and its changing trends, so as to make a comprehensive evaluation of environmental quality. When conducting environmental monitoring, it is necessary to sample and detect the soil and water sources of the surrounding environment.

[0003] The water intake device is a one-way rotating water intake pipe, and a water discharge hose is usually installed on its side wall. Originally, it is usually clamped by a clip to prevent water leakage of the water sample. The first step of water quality detection is water source sampling. The water outlet of the existing wastewater sampling device is set as a rubber hose, which will fall off after multiple uses and is not durable, resulting in the problem of loss of wastewater collection samples. Utility Model Content

[0004] In order to improve the problem that the outlet pipe of wastewater collection is prone to fall off after multiple uses, resulting in the loss of wastewater collection samples, this application provides a durable wastewater sampling device.

[0005] A durable wastewater sampling device provided by this application adopts the following technical solutions:

[0006] A durable wastewater sampling device includes a water intake pipe, an outlet is opened on the water intake pipe, and a plug valve assembly for controlling the opening and closing of the outlet is movably installed on the outlet; wherein, the plug valve assembly includes an outer pull block, a connecting shaft, and an inner pressing block. The inner pressing block is fixed at the outlet, the connecting shaft is movably sleeved on the inner pressing block, the outer pull block is fixed at one end of the connecting shaft away from the inner pressing block, and a gap for water flow to pass through is formed between the connecting shaft and the inner pressing block.

[0007] By adopting the above technical solutions, an outlet is opened near the bottom of the water intake pipe, and the outlet and the plug valve assembly are in clearance fit. After the water sample collection is completed, the outer pull block is pulled out from the outer wall of the water intake pipe, and at the same time, the connecting shaft is driven to move in a direction away from the inner pressing block, realizing the opening of the outlet, and the water flow flows out from the gap, so as to sample water from the outlet of the sampler. When the outer pull block moves closer to the inner pressing block, the outlet is blocked.

[0008] Optionally, the inner pressing block is in a horn shape, an inner groove is opened on the side of the inner pressing block close to the outer pull block, and a snap ring adapted to the inner groove is fixed on the side of the outer pull block close to the inner pressing block.

[0009] By adopting the above technical solution, when the movable outer pulling block approaches the inner pressing block and the snap ring and the inner groove cooperate with each other, the wastewater in the sampling pipe is blocked.

[0010] Optionally, the material of the plug valve assembly is PVC material, and the material of the water intake pipe is PMMA material.

[0011] By adopting the above technical solution, it has good waterproof performance and reduces the leakage at the plugging part of the water outlet.

[0012] Optionally, cover plates are rotatably arranged at both ends of the water intake pipe, and the turning angles of the cover plates are opposite.

[0013] By adopting the above technical solution, when taking wastewater, the bottom cover plate turns over to facilitate the wastewater to flow into the water intake pipe. The top and bottom cover plates can be controlled to open and close by ropes. When sampling the water outlet after collection, the top and bottom cover plates seal the water intake pipe to prevent leakage.

[0014] Optionally, the shaft diameter of the communication shaft is smaller than the diameter of the water outlet, and the outer diameter of the snap ring is equal to the diameter of the water outlet.

[0015] By adopting the above technical solution, the shaft diameter of the communication shaft is smaller than the water outlet, which facilitates the communication shaft to move along the axis of the water outlet. The snap ring is used to block the gap between the inner pressing block and the communication shaft.

[0016] Optionally, an elastic member for pressing against the snap ring is further installed on the inner wall of the inner pressing block.

[0017] By adopting the above technical solution, the provided elastic member improves the pressing effect between the inner pressing block and the snap ring.

[0018] Optionally, the elastic member includes a spring and a protrusion. A pit is circumferentially formed on the inner wall of the inner pressing block. One end of the spring is fixed to the inner wall of the pit, and the other end of the spring is fixed to the protrusion located in the pit.

[0019] By adopting the above technical solution, in the initial state, the elastic action of the spring pushes out the protrusion to fit with the snap ring, improving the abutting effect between the snap ring and the protrusion located in the gap.

[0020] Optionally, the cross section of the snap ring is conical, and its inclined surface angle is 5° - 10°.

[0021] By adopting the above technical solution, when pushing the snap ring to press against the inner pressing block, the inclined surface angle improves the pressing effect between the snap ring and the inner pressing block.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Manually pull the outer pull block, and the outer pull block and the connecting shaft move together to the outside of the upper water outlet of the water intake pipe. A gap formed between the connecting shaft and the inner pressure block allows water flow to pass through; manually push the outer pull block against the outer wall of the water intake pipe to block the water outlet on the water intake pipe, preventing the loss of the wastewater sampling sample.

[0024] 2. The clamping ring and the inner groove are tightly clamped with each other to enhance the blocking effect of the plug valve assembly on the water outlet, preventing the water flow at the water outlet from leaking out.

[0025] 3. During sampling, push the plug valve assembly forward, and when the water flows out after sampling is completed, pull out the plug valve assembly to take out the wastewater sample, which is more durable in use. Brief Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic diagram showing the overall structure of the present application.

[0028] Figure 2 It is a sectional view showing the present application.

[0029] Figure 3 It shows the present application Figure 2 Enlarged view in the direction of A.

[0030] Figure 4 It is a schematic diagram of a partial sectional view showing the water outlet of the present application.

[0031] Figure 5 It shows the present application Figure 4 Enlarged view in the direction of B.

[0032] Reference Signs: 1, water intake pipe; 2, water outlet; 3, plug valve assembly; 31, outer pull block; 32, connecting shaft; 33, inner pressure block; 41, inner groove; 42, clamping ring; 5, cover plate; 6, elastic member; 61, spring; 62, protrusion; 63, pit. Detailed Description of the Specific Embodiment

[0033] The following further elaborates on the present application in conjunction with the attached Figures 1-5 drawings.

[0034] The embodiments of the present application disclose a durable wastewater sampling device.

[0035] Refer to Figure 1 and Figure 3As shown, it includes a water intake pipe 1. An outlet 2 is provided at the bottom position of the water intake pipe 1. A plug valve assembly 3 for controlling the opening and closing of the outlet 2 is movably installed on the outlet 2.

[0036] Among them, the plug valve assembly 3 includes an outer pull block 31, a connecting shaft 32 and an inner pressure block 33. The inner pressure block 33 is fixed to the outlet 2. The connecting shaft 32 is movably sleeved on the inner pressure block 33. The outer pull block 31 is fixed to one end of the connecting shaft 32 away from the inner pressure block 33. Due to the clearance fit between the outlet 2 and the plug valve assembly 3, a gap for water flow to pass through is formed between the connecting shaft 32 and the inner pressure block 33. There is a certain distance between the outer pull block 31 and the outer wall of the water intake pipe 1. The generated gap enables the water source inside the water intake pipe 1 to flow out from the outlet 2 of the water intake pipe 1; the shaft diameter of the connecting shaft 32 is smaller than the diameter of the outlet 2. The outer diameter of the snap ring 42 is equal to the diameter of the outlet 2. The shaft diameter of the connecting shaft 32 is smaller than that of the outlet 2. The connecting shaft 32 is convenient to move along its own axis. By pushing the outer pull block 31 outside the water intake pipe 1, the outer pull block 31 and the connecting shaft 32 move along the inner pressure block 33 inside the water intake pipe 1. When the outer pull block 31 is in contact with the outer wall of the water intake pipe 1, the outer pull block 31 realizes the blocking of the gap on the outlet 2.

[0037] See Figure 3 As shown, the inner pressure block 33 is in a horn shape. An inner groove 41 is provided on the side of the inner pressure block 33 close to the outer pull block 31. A snap ring 42 adapted to the inner groove 41 is fixed on the side of the outer pull block 31 close to the inner pressure block 33. When the outer pull block 31 is moved closer to the inner pressure block 33 and the snap ring 42 and the inner groove 41 cooperate with each other, the waste water in the sampling pipe is blocked. The cross-section of the snap ring 42 is conical, and its inclined surface angle is 5° - 10°. Pushing the snap ring 42 with a certain slope into the outlet 2 helps to improve the clamping tightness between the snap ring 42 and the inner pressure block 33 and reduce the occurrence of leakage.

[0038] The material of the plug valve assembly 3 is PVC material, and the material of the water intake pipe 1 is PMMA material, which has good waterproof performance and reduces the leakage at the blocking part of the outlet 2.

[0039] See Figure 2 As shown, cover plates 5 are rotatably arranged at both ends of the water intake pipe 1. The cover plates 5 are turned in opposite directions. The turnable angle of the cover plates 5 is 0° - 45°. When taking waste water, the bottom cover plate 5 is turned over to facilitate the waste water to flow into the water intake pipe 1. The top and bottom cover plates 5 can be controlled to open and close by ropes. When sampling the outlet 2 after collection, the top and bottom cover plates 5 seal the water intake pipe 1 to prevent leakage.

[0040] See Figure 4 and Figure 5As shown in the figure, an elastic member 6 for pressing against the snap ring 42 is further installed on the inner wall of the inner pressure block 33. The provided elastic member 6 improves the pressing effect between the inner pressure block 33 and the snap ring 42. The elastic member 6 includes a spring 61 and a protrusion 62. The shape of the protrusion 62 can be any one of a hemispherical shape, an elliptical shape, and a spherical shape. The inner wall of the inner pressure block 33 is provided with a concave pit 63 along the circumferential direction. The shape of the concave pit 63 is a hemispherical groove, a square groove, or an arc groove. The protrusion 62 is located at a position of 2 / 3 to 3 / 4 within the concave pit 63. The protruding part of the protrusion 62 fits against the outer wall of the snap ring 42. One end of the spring 61 is fixed to the inner wall of the concave pit 63, and the other end of the spring 61 is fixed to the protrusion 62 located within the concave pit 63. In the initial state, the elastic action of the spring 61 pushes out the protrusion 62 to fit against the snap ring 42, improving the abutting effect between the snap ring 42 located within the gap and the convex block.

[0041] The implementation principle of a durable wastewater sampling device according to an embodiment of the present application is as follows: The water intake pipe 1 is immersed in the water intake area, and the covers 5 at the top and bottom of the water intake pipe 1 are flipped, so as to facilitate the water intake pipe 1 to take in wastewater. When taking a wastewater sample, the outer pull block 31 and the connecting shaft 32 are pulled, and the connecting shaft 32, the outer pull block 31, and the inner pressure block 33 move away in a certain direction. The gap between the connecting shaft 32 and the inner pressure block 33 allows wastewater to flow through, thereby realizing wastewater collection; when the wastewater in the water intake pipe 1 is blocked, the connecting shaft 32 and the outer pull block 31 are pushed towards the inner pressure block 33, and the snap ring 42 on the outer pull block 31 and the inner pressure block 33 are clamped to each other, improving the blocking effect of the water outlet 2 to prevent the accidental loss of the collected sample due to the detachment of the water outlet 2. Compared with the traditional method of clamping a hose with a clip for blocking, this method of blocking the water outlet 2 is more durable.

[0042] Unless otherwise defined, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those of ordinary skill in the art to which this application belongs. The words "first", "second", "third", and similar terms used in the specification and claims of this application do not indicate any order, quantity, or importance, but are only used to distinguish different components. Words such as "a" or "an" do not indicate a quantity limitation, but indicate that there is at least one. Words such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0043] The above are all preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A durable wastewater sampling device, characterized in that: The invention comprises a water intake pipe (1), the water intake pipe (1) is provided with a water outlet (2), the water outlet (2) is movably provided with a plug valve assembly (3) for controlling the opening and closing of the water outlet (2); wherein the plug valve assembly (3) comprises an outer pull block (31), a connecting shaft (32) and an inner pressure block (33), the inner pressure block (33) is fixed to the water outlet (2), the connecting shaft (32) is movably sleeved on the inner pressure block (33), the outer pull block (31) is fixed to one end of the connecting shaft (32) away from the inner pressure block (33), and a gap for water flow is formed between the connecting shaft (32) and the inner pressure block (33).

2. A durable wastewater sampling device according to claim 1, characterized in that: The inner pressure block (33) is trumpet-shaped, and an inner groove (41) is provided on a side of the inner pressure block (33) close to the outer pull block (31), and a clamping ring (42) adapted to the inner groove (41) is fixed on a side of the outer pull block (31) close to the inner pressure block (33).

3. A durable wastewater sampling device according to claim 1, characterized in that: The plug valve assembly (3) is made of PVC material, and the water intake pipe (1) is made of PMMA material.

4. A durable wastewater sampling device according to claim 1, characterized in that: Cover plates (5) are rotatably arranged at both ends of the water intake pipe (1), and the cover plates (5) are turned at opposite angles.

5. A durable wastewater sampling device according to claim 2, characterized in that: The shaft diameter of the connecting shaft (32) is smaller than the caliber of the water outlet (2), and the outer diameter of the clamping ring (42) is equal to the caliber of the water outlet (2).

6. A durable wastewater sampling device according to claim 1, characterized in that: An elastic member (6) for pressing against a clamping ring (42) is also installed on the inner wall of the inner pressure block (33).

7. A durable wastewater sampling device according to claim 6, characterized in that: The elastic member (6) comprises a spring (61) and a protrusion (62); the inner wall of the inner pressure block (33) is provided with a recess (63) along the circumferential direction; one end of the spring (61) is fixed to the inner wall of the recess (63); and the other end of the spring (61) is fixed to the protrusion (62) located in the recess (63).

8. A durable wastewater sampling device according to claim 2, characterized in that: The cross section of the clamping ring (42) is conical, and the angle of the bevel is 5° to 10°.

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