Pipeline water sampling device

Abstract

The invention provides a pipeline water sample sampling device which comprises a sampling shell, an elastic cushion layer and a sampling assembly, and the two ends of the sampling shell are connected with the two ends of a sampling section of a drainage pipeline respectively; the elastic cushion layer is arranged in the sampling shell and is used for separating the sampling shell into a drainage cavity communicated with the drainage pipeline and a sampling cavity separated from the drainage pipeline; the sampling assembly extends into the sampling cavity from the sampling shell; a sampling notch is formed in the elastic cushion layer, and the sampling assembly is telescopically connected to the sampling shell; the sampling assembly abuts against the elastic cushion layer in the stretching state, the sampling notch is opened, and a water sample in the drainage cavity enters the sampling assembly; the sampling assembly does not make contact with the elastic cushion layer in the contraction state, the sampling notch is closed, and a water sample in the drainage cavity cannot enter the sampling cavity. As the elastic cushion layer is an elastic piece, the drainage pipeline cannot be blocked no matter whether the sampling device is in a water taking state or not, sampling is convenient, and the sampling efficiency of the sampling device can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of building drainage, and in particular to a pipeline water sampling device. Background Art

[0002] Building drainage is one of the main components of building water supply and drainage engineering. The task of the building drainage system is to discharge the domestic sewage, industrial wastewater and rain and snow water collected by the production equipment in the building to the outdoor drainage network, outdoor sewage treatment structures or water bodies in a timely manner. During the operation of the building drainage system, it is necessary to sample and test the water in the building drainage pipe. Water that does not meet the discharge standards needs to be treated before it can be discharged.

[0003] Existing sampling devices for building drainage pipes are prone to clogging during use, which makes cleaning inconvenient and affects the sampling efficiency of the sampling devices. Summary of the invention

[0004] The purpose of the present invention is to provide a pipeline water sample sampling device to solve the problem that the drainage pipeline sampling device in the prior art is prone to blockage and affects the sampling efficiency.

[0005] The present invention provides a pipeline water sample sampling device, which is arranged in a sampling section of a drainage pipeline, and comprises a sampling shell, an elastic cushion layer and a sampling component, wherein two ends of the sampling shell are respectively connected to two ends of the sampling section of the drainage pipeline; the elastic cushion layer is arranged in the sampling shell, and is used to separate the sampling shell into a drainage cavity communicated with the drainage pipeline and a sampling cavity separated from the drainage pipeline; the sampling component extends from the sampling shell into the sampling cavity; Wherein, a sampling incision is provided on the elastic cushion layer, and the sampling component is telescopically connected to the sampling shell; when the sampling component is in an extended state, it abuts against the elastic cushion layer, the sampling incision is opened, and the water sample in the drainage cavity enters the sampling component; when the sampling component is in a contracted state, it does not contact the elastic cushion layer, the sampling incision is closed, and the water sample in the drainage cavity cannot enter the sampling cavity.

[0006] Optionally, the sampling shell protrudes from the outer wall of the drainage pipe, and two ends of the sampling shell are sealed and connected to two ends of the sampling section of the drainage pipe, and the sampling component is arranged at the protruding position of the shell.

[0007] Optionally, the sampling housing is provided with a connecting hole, and the sampling assembly is slidably and sealingly connected to the connecting hole.

[0008] Optionally, the sampling assembly includes a sampling tube and a telescopic rod, one end of the telescopic rod is fixed to the outer surface of the sampling shell, the other end of the telescopic rod is telescopically connected to the end of the sampling tube extending out of the sampling shell, the other end of the sampling tube is inserted into the sampling cavity, and the other end of the sampling tube is provided with a sampling hole for collecting water samples.

[0009] Optionally, the sampling tube is inserted into the sampling shell perpendicular to the axis of the sampling shell, and the telescopic rod is obliquely connected to the sampling tube; when the telescopic rod is contracted, the sampling tube is inserted inward and abuts against the elastic cushion layer, and when the telescopic rod is extended, the sampling tube is lifted outward and detached from the elastic cushion layer.

[0010] Optionally, the length direction of the sampling incision is perpendicular to the axial direction of the sampling tube.

[0011] Optionally, the sampling incision comprises a plurality of sampling incisions, and the plurality of sampling incisions are arranged in an array along the stretching direction of the elastic cushion layer.

[0012] Optionally, the pipeline water sampling device also includes a sampling filter, which is arranged on the surface of the elastic cushion layer in the drainage cavity, and the sampling filter completely covers the sampling incision.

[0013] Optionally, two connection points are provided between the sampling filter and the elastic cushion layer, and the two connection points are respectively provided outside the long end of the sampling incision so as not to affect the opening and closing of the sampling incision.

[0014] Optionally, one end of the sampling tube is connected to an external water-drawing structure for drawing out the water sample at the other end of the sampling tube.

[0015] The beneficial effects of this solution are: The pipeline water pipe sampling device of this scheme separates the sampling shell into a drainage chamber and a sampling chamber through an elastic cushion layer. When taking water, the sampling incision of the elastic cushion layer is propped open by the sampling component to collect water samples. When not taking water, the sampling incision of the elastic cushion layer is closed. Since the elastic cushion layer is an elastic part, it will not block the drainage pipe regardless of whether it is in the water taking state, and sampling is convenient, which can effectively improve the sampling efficiency of the sampling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a pipeline water sampling device; Figure 2 It is the front view of the pipeline water sampling device; Figure 3 for Figure 2 A schematic cross-sectional view of the pipeline water sampling device in the AA direction; Figure 4 for Figure 2 A sectional front view of the pipeline water sample collection device in the AA direction; Figure 5 It is a side view of the pipeline water sampling device; Figure 6 for Figure 5 A schematic cross-sectional view of the pipeline water sample collection device in the middle BB direction; Figure 7 A partial schematic diagram of a first surface of the elastic cushion layer opened for sampling incision; Figure 8 It is a partial schematic diagram of the second surface of the elastic cushion layer.

[0017] Description of reference numerals: 10. Sampling housing; 11. Connection hole; 12. Drainage cavity; 13. Sampling cavity; 20. Elastic cushion layer; 21. Sampling cutout; 22. Sampling filter; 30. Sampling assembly; 31. Sampling tube; 311. Sampling hole; 32. Telescopic rod; 40. Drainage pipe; 41. Sampling section. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two components. For ordinary technicians in this field, the specific meanings of the terms in the present invention can be understood according to specific circumstances.

[0020] See also Figure 1-8The embodiment of the present invention discloses a pipeline water sampling device, which is arranged at a sampling section 41 of a drainage pipeline 40. The pipeline water sampling device comprises a sampling housing 10, an elastic cushion layer 20 and a sampling assembly 30. The two ends of the sampling housing 10 are respectively connected to the two ends of the sampling section 41 of the drainage pipeline 40; the elastic cushion layer 20 is arranged in the sampling housing 10, and is used to separate the sampling housing 10 into a drainage cavity 12 communicated with the drainage pipeline 40 and a sampling cavity 13 separated from the drainage pipeline 40; the sampling assembly 30 extends from the sampling housing 10 into the sampling cavity 13; Among them, a sampling incision 21 is provided on the elastic cushion layer 20, and the sampling component 30 is telescopically connected to the sampling shell 10; when the sampling component 30 is in an extended state, it abuts against the elastic cushion layer 20, the sampling incision 21 is opened, and the water sample in the drainage cavity 12 enters the sampling component 30; when the sampling component 30 is in a contracted state, it does not contact the elastic cushion layer 20, the sampling incision 21 is closed, and the water sample in the drainage cavity 12 cannot enter the sampling cavity 13.

[0021] Compared with the prior art, the pipeline water sampling device of the present solution separates the sampling housing 10 into a drainage chamber 12 and a sampling chamber 13 through an elastic cushion layer 20. When taking water, the sampling incision 21 of the elastic cushion layer 20 is propped open by the sampling assembly 30 to collect water samples. When not taking water, the sampling incision 21 of the elastic cushion layer 20 is closed. Since the elastic cushion layer 20 is an elastic member, it will not block the drainage pipe 40 regardless of whether it is in the water taking state, and sampling is convenient, which can effectively improve the sampling efficiency of the sampling device.

[0022] In this embodiment, the sampling housing 10 protrudes from the outer wall of the drainage pipe 40, and the two ends of the sampling housing 10 are sealed and connected to the two ends of the sampling section 41 of the drainage pipe 40, and the sampling assembly 30 is arranged at the protruding position of the housing. The sampling housing 10 of the sampling section 41 is connected to the inside of the drainage pipe 40, and the inner diameter of the middle protrusion of the sampling housing 10 is increased to form a buffer zone, and the sampling assembly 30 is located on the upper side of the buffer zone. The setting of the buffer zone can further increase the pipe diameter of the sampling section 41 to avoid blockage during the sampling process.

[0023] In this embodiment, the sampling housing 10 is provided with a connection hole 11, and the sampling assembly 30 is slidably and hermetically connected to the connection hole 11. The sampling tube 31 is slidably and hermetically connected to the connection hole 11, and a sealing gasket is provided on the outer periphery of the lower end of the sampling tube 31. When the sampling tube 31 is at the highest position, the sampling tube 31 seals the connection hole 11 through the sealing gasket.

[0024] In this embodiment, the sampling assembly 30 includes a sampling tube 31 and a telescopic rod 32. One end of the telescopic rod 32 is fixed to the outer surface of the sampling shell 10, and the other end of the telescopic rod 32 can be telescopically connected to the end of the sampling tube 31 extending out of the sampling shell 10. The other end of the sampling tube 31 is inserted into the sampling cavity 13, and the other end of the sampling tube 31 is provided with a sampling hole 311 for collecting water samples.

[0025] In this embodiment, the sampling tube 31 is inserted into the sampling shell 10 perpendicular to the axis of the sampling shell 10, and the telescopic rod 32 is obliquely connected to the sampling tube 31; when the telescopic rod 32 contracts, the sampling tube 31 is inserted inward and abuts against the elastic cushion layer 20, and when the telescopic rod 32 extends, the sampling tube 31 is lifted outward and detached from the elastic cushion layer 20.

[0026] In this embodiment, the length direction of the sampling incision 21 is perpendicular to the axial direction of the sampling tube 31. When the elastic pad layer 20 is located in the sampling portion, the sampling incision 21 is in a closed state. When the elastic pad layer 20 is pressed downward into the sampling section 41, the sampling incision 21 can be pulled open.

[0027] In this embodiment, multiple groups of sampling incisions 21 can be set on the elastic pad layer 20, and the multiple groups of sampling incisions 21 are arranged in a circular array. Each group of sampling incisions 21 can also include multiple sampling incisions 21, and the multiple sampling incisions 21 are arranged in an array along the stretching direction of the elastic pad layer 20. When the sampling tube 31 presses downward on the middle part of the elastic pad layer 20, the sampling incisions 21 are pulled open.

[0028] In this embodiment, the pipeline water sampling device further includes a sampling filter 22, which is disposed on the surface of the elastic cushion layer 20 in the drainage cavity 12, and the sampling filter 22 completely covers the sampling incision 21. Two connection points are provided between the sampling filter 22 and the elastic cushion layer 20, and the two connection points are respectively provided outside the long end of the sampling incision 21, so as not to affect the opening and closing of the sampling incision 21.

[0029] In this embodiment, one end of the sampling tube 31 is connected to an external water-drawing structure for drawing out the water sample at the other end of the sampling tube 31 .

[0030] Directions: When the device is used, the telescopic rod 32 is extended, and the upper end of the telescopic rod 32 stretches the sampling tube 31 to the highest position, and the sampling tube 31 is sealed with the drainage pipe 40 through the sealing pad; When water sampling is required, the upper end of the sampling tube 31 is connected to a water pump or other water-drawing components, the telescopic rod 32 is shortened, the telescopic rod 32 presses the sampling tube 31 downward, and the telescopic rod 32 presses the center of the elastic cushion layer 20 into the drainage cavity 12, and the sampling incision 21 is opened at the same time; The water in the drain pipe enters the sampling cavity 13 through the sampling incision 21 and the sampling filter 22, and flows out through the sampling opening at the lower end of the sampling tube 31, thereby achieving sampling; After the sampling is completed, the telescopic rod 32 is extended to gradually reset the sampling tube 31 upward. At this time, the water in the sampling chamber 13 is discharged outward through the sampling tube 31, and at the same time, part of the water sample flows through the sampling filter 22 and the sampling incision 21 to reversely flush the sampling filter 22. After the sampling tube 31 rises to the highest position, the sampling tube 31 and the sampling portion are sealed, and the elastic cushion layer 20 and the bottom surface of the sampling portion are in close contact and sealed.

[0031] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present technical solution. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present technical solution shall be subject to the attached claims.

Claims

1. A pipeline water sampling device, characterized in that: The pipeline water sample sampling device is arranged at the sampling section of the drainage pipeline, and the pipeline water sample sampling device comprises: A sampling housing, the two ends of which are respectively connected to the two ends of the sampling section of the drainage pipe; An elastic cushion layer, the elastic cushion layer is arranged in the sampling housing and is used to separate the sampling housing into a drainage cavity communicated with the drainage pipe and a sampling cavity separated from the drainage pipe; A sampling assembly, the sampling assembly extending from the sampling housing into the sampling cavity; Wherein, a sampling incision is provided on the elastic cushion layer, and the sampling component is telescopically connected to the sampling shell; when the sampling component is in an extended state, it abuts against the elastic cushion layer, the sampling incision is opened, and the water sample in the drainage cavity enters the sampling component; when the sampling component is in a contracted state, it does not contact the elastic cushion layer, the sampling incision is closed, and the water sample in the drainage cavity cannot enter the sampling cavity.

2. The pipeline water sampling device according to claim 1, characterized in that: The sampling shell protrudes from the outer wall of the drainage pipe, and the two ends of the sampling shell are sealed and connected to the two ends of the sampling section of the drainage pipe. The sampling component is arranged at the protruding position of the shell.

3. The pipeline water sampling device according to claim 1, characterized in that: The sampling housing is provided with a connecting hole, and the sampling component is slidably and sealingly connected to the connecting hole.

4. The pipeline water sampling device according to claim 1, characterized in that: The sampling assembly includes a sampling tube and a telescopic rod, one end of the telescopic rod is fixed to the outer surface of the sampling shell, the other end of the telescopic rod is telescopically connected to the end of the sampling tube extending out of the sampling shell, the other end of the sampling tube is inserted into the sampling cavity, and the other end of the sampling tube is provided with a sampling hole for collecting water samples.

5. The pipeline water sampling device according to claim 4, characterized in that: The sampling tube is inserted into the sampling shell perpendicular to the axis of the sampling shell, and the telescopic rod is obliquely connected to the sampling tube; when the telescopic rod is contracted, the sampling tube is inserted inwardly and abuts against the elastic cushion layer, and when the telescopic rod is extended, the sampling tube is lifted outwardly and detached from the elastic cushion layer.

6. The pipeline water sampling device according to claim 4, characterized in that: The length direction of the sampling incision is perpendicular to the axial direction of the sampling tube.

7. The pipeline water sampling device according to claim 1, characterized in that: The sampling incisions include a plurality of sampling incisions, and the plurality of sampling incisions are arranged in an array along the stretching direction of the elastic cushion layer.

8. The pipeline water sampling device according to claim 1, characterized in that: The pipeline water sampling device also includes a sampling filter, which is arranged on the surface of the elastic cushion layer in the drainage cavity, and the sampling filter completely covers the sampling incision.

9. The pipeline water sampling device according to claim 8, characterized in that: Two connection points are arranged between the sampling filter and the elastic cushion layer, and the two connection points are respectively arranged outside the long end of the sampling incision so as not to affect the opening and closing of the sampling incision.

10. The pipeline water sampling device according to claim 4, characterized in that: One end of the sampling tube is connected to an external water-drawing structure for drawing out the water sample from the other end of the sampling tube.

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