CN110726816A - A fluid measuring pipeline device - Google Patents

Abstract

The invention provides a fluid measuring pipeline device, which includes a pipeline body with a water inlet channel and a cleaning component inside, and is provided with a stop valve part for intercepting flow, a control part for controlling interception, and a control part for triggering and lifting the cleaning Sliding part of the assembly. The control part includes a valve control cavity with an electromagnet and a strong magnetic slider inside, the sliding part includes a sliding cavity with a sliding bolt, and the strong magnetic slider drives the sliding bolt to slide left and right when sliding, Thus, the cleaning assembly is driven to slide up and down. In the present invention, the cleaning component and the sensor are automatically separated when the measurement is not required. When the fluid enters the measuring pipeline, the cleaning component automatically contacts the sensor upward, and performs rotary brushing or cleaning under the impact of the fluid, so as to ensure the cleanliness of the sensor measurement area and improve the measurement precision.

Description

A fluid measuring pipeline device

technical field

The present invention relates to the technical field of fluid monitoring devices, in particular to a fluid measuring pipeline device.

Background technique

In fluid measurements, including water bodies, sensitivity to sensor detection is critical. During the measurement process, especially in the long-term online measurement, the sensor usually adheres to some dirt and impurities. If it is not cleaned regularly, it will seriously interfere with the accuracy of the measurement results.

For example, in the monitoring of water quality in the fields of aquaculture and intelligent fishery, there are still unscientific measurement methods or inconvenient technical maintenance, which may easily cause inaccurate measurement results, or become inaccurate after a period of time. Users' recognition of intelligent water quality sensors cannot replace manual experience with advanced equipment, thereby improving its economic value.

In the prior art, if the sensor is installed in a fluid such as a water body for a long time for detection, the sensor is easy to be dirty, the measurement result is inaccurate, regular cleaning and maintenance are required, and the maintenance cost is also increased. Therefore, there are also some ways to measure the pipeline by measuring and extracting the fluid, such as pumping directly from the water body to be measured into the pipeline through a water pump, and then measuring. And in the existing technology, there are still the following technical defects, especially the water quality detection process of the water body in the existing technology has problems:

If the measurement sensor is a sensor similar to an electrochemical dissolved oxygen sensor, there is also a water flow rate requirement during measurement. Traditionally, it is not scientific to use a pump to pump to a designated area for unified measurement, and there will be some errors; At the same time, because there is no special sealing treatment during the pumping process, the water flow is generally easy to contact with the air. When the oxygen in the air merges with the water flow, the dissolved oxygen concentration in the water flow will definitely increase, which will also cause errors in the measurement results, or even errors. .

Meanwhile, in the prior art, since the adhesion of dirt is unavoidable, the detection device must be disassembled regularly to clean the sensor, so as to improve the detection sensitivity and accuracy of the sensor. However, this traditional cleaning method is very inconvenient, requires dismantling of the device, and requires trained operators to perform the operation. The maintenance cost is high, the process is complicated, and the economy is not good.

In the Chinese invention patent with application number CN 201810189080.8, a multi-channel aquaculture pond water sample collection and measurement device is disclosed, including a water quality monitoring box, and various water quality monitoring probes are installed in the water quality monitoring box, which are used for multi-channel water samples. The water sample sent by the water inlet pipe is tested, and finally the tested water sample is discharged through the drainage pump and the drainage pipe. This patent controls the on and off of each solenoid valve through PLC timing sequence, and controls the input and discharge of water samples. However, this patent also has one or more of the technical defects listed above, for example, the water quality monitoring probe is in contact with the air, which requires regular manual maintenance and cleaning.

SUMMARY OF THE INVENTION

The present invention makes improvements in view of the above technical problems, that is, the technical problem to be solved by the present invention is to provide a closed fluid measuring pipeline device that can measure the fluid at a certain flow rate and can simultaneously brush or clean the sensor. The cleaning assembly can be automatically separated from the sensor when no fluid is flowing through the pipe.

In order to solve the above technical problems, a technical solution of the present invention is: a fluid measurement pipeline device, characterized in that the fluid measurement pipeline device includes a pipeline body with a water inlet channel and a cleaning component inside, the pipeline body There is also a shut-off valve part for shutting off the flow, a control part for controlling the shut-off, and a sliding part for triggering and lifting the cleaning assembly.

The cleaning component is arranged inside the water inlet channel, a through hole is arranged on the pipe above the cleaning component, and a sensor for fluid detection is installed and arranged in a sealed manner at the through hole.

The control part includes a valve control cavity in which an electromagnet and a strong magnetic slider are arranged, the strong magnetic slider is fixedly connected with a valve support rod, and one end of the valve support rod is provided with a valve for connecting to the stop valve part. Shut-off plug.

The sliding part includes a sliding cavity provided with a sliding bolt, the strong magnetic slider drives the sliding bolt to slide left and right when sliding up and down, and the sliding bolt further drives the cleaning assembly to slide up and down.

Further, one or both ends of the strong magnetic slider are semi-circular, elliptical or arc-shaped.

Further, the valve control cavity is further provided with a first spring, one end of the first spring is connected to the inner bottom of the valve control cavity, and the other end is connected to the strong magnetic slider.

Further, the valve control cavity is in communication with the sliding cavity, and one end of the sliding bolt can partially extend into the valve control cavity.

Further, one end of the sliding bolt is a semicircular, elliptical or arc-shaped structure, and the other end is an arc-shaped structure with an upper and lower drop area.

Further, the sliding cavity is further provided with a second spring, one end of the second spring is connected to the inner side of the sliding cavity, and the other end is connected to the sliding bolt.

Further, the cleaning assembly includes a rotatable cleaning impeller, the cleaning impeller is fixedly connected with a cleaning shaft, and the lower end of the cleaning shaft abuts against the sliding bolt.

Further, a cleaning sheet assembly is connected to the upper end of the cleaning shaft, the cleaning sheet assembly includes a brush rod, and a number of soft bristles are arranged on the brush rod.

Further, the cleaning impeller is a multi-blade rotatable impeller.

Further, a buffer pad is also provided between the electromagnet and the strong magnetic slider.

Compared with the prior art, the present invention has the following beneficial effects:

(1) When it is not required for measurement, or when there is no fluid passing through the measurement pipeline, the cleaning component and the sensor are automatically separated and kept at a certain distance to avoid prolonged contact, which will cause dirt to adhere and affect the measurement results;

(2) When the measuring pipe is opened, the fluid enters, and the cleaning component also automatically lifts up to contact the sensor. Under the impact of the fluid, it performs rotary brushing and cleaning to ensure the cleanliness of the sensor measurement area, thereby improving the measurement accuracy;

(3) The measuring pipeline device can be set in a closed type, and the liquid is not in direct contact with the air, which can avoid the fusion of the water body and the air when measuring fluids such as water bodies. The closed measurement method is more scientific and the data is reliable;

(4) Before, during or after the sensor measurement process, as long as the fluid is still there, continue to clean or brush the sensor, so that the sensor can be kept in a better measurement state;

(5) It is not necessary to regularly disassemble the device to clean and maintain the sensor, reducing maintenance costs;

(6) During the whole measurement process, a certain liquid flow rate can be maintained. For some specific fluids and corresponding measurement sensors that require flow rate, this measurement method is more accurate.

Description of drawings

FIG. 1 is a schematic anatomical diagram of the structure of a fluid measuring pipeline device according to an embodiment of the present invention (non-measurement and cleaning working state).

FIG. 2 is another schematic diagram (working state) of the structural anatomy of the fluid measuring pipeline device according to the embodiment of the present invention.

FIG. 3 is an enlarged schematic diagram of the partial structure of the valve control cavity of the fluid measuring pipeline device according to the embodiment of the present invention (non-measurement and cleaning working state).

4 is an enlarged schematic anatomical view (working state) of the partial structure of the valve control cavity part of the fluid measuring pipeline device according to the embodiment of the present invention.

FIG. 5 is a partially enlarged schematic diagram of the fluid measuring pipeline device according to the embodiment of the present invention in a non-measurement and cleaning working state.

FIG. 6 is a partially enlarged schematic diagram of the fluid measuring pipeline device according to the embodiment of the present invention when the cleaning work is started.

FIG. 7 is a schematic three-dimensional structural diagram of a cleaning component of a fluid measuring pipeline device according to an embodiment of the present invention.

FIG. 8 is a schematic anatomical diagram of the structure of the fluid measuring pipeline device according to the embodiment of the present invention and a length or height indication diagram of a specific part.

In Figure 1: 1-pipeline body, 101-water inlet channel, 2-sensor, 11-cleaning assembly, 12-control part, 13-slide part, 1220-plug part, 100-sealing part, 102-stop valve part , 123-electromagnet, 121-valve control chamber, 122-valve support rod, 124-first spring, 125-strong magnetic slider, 132-slide bolt, 131-second spring, 130-slide chamber, 110-cleaning axis.

In Figure 2: 1-pipeline body, 101-water inlet channel, 2-sensor, 11-cleaning assembly, 12-control part, 102-stop valve part, 121-valve control cavity, 122-valve support rod, 124-th A spring, 125-strong magnetic slider, 132-sliding bolt, 131-second spring, 130-sliding cavity, 201-sensor measuring part.

In Figure 3: 1220-plug head, 122-valve support rod, 100-sealing part, 126-buffer pad, 125-strong magnetic slider, 121-valve control cavity, 124-first spring, 132-slide bolt, 123- electromagnet, 12- control part.

In Figure 4: 1220-plug head, 122-valve support rod, 100-sealing part, 126-buffer pad, 125-strong magnetic slider, 121-valve control cavity, 124-first spring, 132-slide bolt, 123- electromagnet, 12- control part.

In Figure 5: 2-sensor, 201-sensor measuring part, 11-cleaning assembly, 112-cleaning blade assembly, 111-cleaning impeller, 110-cleaning shaft, 131-second spring, 132-slide bolt, 100-seal part , 13-Sliding part.

In Fig. 6: 2-sensor, 11-cleaning assembly, 112-cleaning sheet assembly, 111-cleaning impeller, 110-cleaning shaft, 131-second spring, 132-sliding bolt, 100-seal part, 13-sliding part.

In Fig. 7: 112-cleaning sheet assembly, 110-cleaning shaft, 111-cleaning impeller.

In Figure 8: 1- Pipe body, 2- Sensor, A1/A2/A3/B1/B2/C1/C2- length or height of a specific part of the part.

Detailed ways

The following will briefly introduce the accompanying drawings required for the specific implementation. Obviously, the described embodiments are part of the embodiments of the present invention, and the accompanying drawings are some embodiments of the present invention. For those of ordinary skill in the art, , and other forms of drawings can also be obtained from these drawings without any creative effort.

It should be noted that, unless otherwise expressly specified and limited, the terms "connected", "connected" and "installed" in the description of the present invention should be understood in a broad sense, for example, it may be an integral connection, a fixed connection or a detachable connection Connection; it can be a direct connection through a mechanical structure or an electronic connection, or an indirect connection through an intermediate medium.

For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

The following disclosure provides different embodiments or examples for implementing different structures or different implementation methods of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific embodiments are described below.

As shown in FIG. 1 , a fluid measuring pipeline device includes a pipeline body 1 with a water inlet channel 101 and a cleaning component 11 inside, and the pipeline body 1 is also provided with a shut-off valve portion 102 for intercepting the flow to control the interception. The control part 12 and the sliding part 13 for triggering and lifting the cleaning assembly 11 .

The cleaning assembly 11 is disposed inside the water inlet channel 101 , a through hole is formed on the pipe above the cleaning assembly 11 , and a sensor 2 for fluid detection is installed and arranged at the through hole.

The control part 12 includes a valve control cavity 121 with an electromagnet 123 and a strong magnetic slider 125 inside. A plug portion 1220 for blocking the flow of the shut-off valve portion 102 .

The sliding portion 13 includes a sliding cavity 130 provided with a sliding bolt 132 . The strong magnetic slider 125 drives the sliding bolt 132 to slide left and right when sliding up and down, and the sliding bolt 132 drives the cleaning assembly 11 to slide up and down. .

In this embodiment, the control part 12 controls the strong magnetic slider 125 to slide up and down through magnetic repulsion or mutual attraction, so as to drive the valve support rod 122 to slide up and down, so as to pass the plug part 1220 The control fluid passes through the shut-off valve portion 102 .

The shut-off valve portion 102 is provided with a hole for passing fluid, and the hole can be closed when in contact with the plug portion 1220 . By controlling the magnitude and direction of the current acting on the electromagnet 123, combined with the magnetic repulsion or attraction of the strong magnetic slider 125, the sliding of the strong magnetic slider 125 is controlled. Driven by the rod 122, the plug portion 1220 slides up and down to control the opening or closing of the shut-off valve portion 102, thereby controlling the passage or blocking of the water flow.

When the strong magnetic slider 125 slides up and down, the sliding bolt 132 is triggered to perform synchronous left and right sliding. Since the outer casing of the sliding bolt 132 is provided with a drop area, the cleaning assembly 11 can also slide up and down synchronously. .

As shown in FIG. 2 , an implementation of this embodiment includes controlling the magnitude and direction of the current acting on the electromagnet 123 so that the electromagnet 123 and the strong magnetic slider 125 are magnetically repelled, The strong magnetic slider 125 slides downwards in the valve control cavity 121 . At this time, the valve support rod 122 slides downwards driven by the strong magnetic slider 125 , and the plug portion 1220 leaves the The shut-off valve portion 102, at this time, the fluid can pass through the holes on the shut-off valve portion 102.

At the same time, when the strong magnetic slider 125 slides down, it touches the sliding bolt 132 , so that the sliding bolt 132 slides to the right in the sliding cavity 130 , and the sliding bolt 132 is in the process of sliding. , the cleaning assembly 11 is driven upward, and the cleaning assembly 11 approaches and contacts the measurement area of the sensor 2 . When the liquid passes through the pipeline, it impacts and drives the cleaning assembly 11 to clean and brush the sensor 2 .

A sealing portion 100 is provided at the connection between the water inlet channel 101 and the valve control cavity, and a sealing portion 100 is also provided at the connection between the water inlet channel 101 and the sensor 2 , and the sealing portion 100 is used for sealing Installed to prevent fluid spillage or spillage.

Combined with the partial enlarged views shown in Figure 3 and Figure 4,

In this embodiment, one or both ends of the strong magnetic slider 125 is a semicircular, oval or arc-shaped structure. Both ends of the strong magnetic slider 125 contact the inner wall of the valve control cavity 121 , and can slide up and down along the inner wall of the valve control cavity 121 .

The valve control chamber 121 is also provided with a sliding preventing block, which is used to prevent the strong magnetic slider 125 from sliding down too long.

In this embodiment, the valve control cavity 121 is further provided with a first spring 124 , one end of the first spring 124 is connected to the inner bottom of the valve control cavity 121 , and the other end is connected to the strong magnetic slider 125 . The valve support rod 122 passes through the first spring 124 from the middle. When the valve control cavity 121 slides down, the pressure acts on the first spring 124, and the first spring 124 is compressed into, For buffering, when the electromagnet 123 and the strong magnetic slider 125 generate magnetic repulsion instantaneously, the impact force of the strong magnetic slider 125 is reduced by the first spring 124 .

In an implementation of this embodiment, when the electromagnet 123 is not energized and the electromagnet 123 is not magnetic, the first spring 124 relies on its own elastic force to push up against the strong magnetic slider 125 , so that the plug portion 1220 on the valve support rod 122 also presses against the hole on the shut-off valve portion 102 , and at this time, the hole is closed to prevent the liquid from passing through.

This embodiment is realized without applying control, that is, when no external force control is applied, the water inlet channel 101 is automatically in a cut-off state, and fluids such as water flow are prohibited from passing through the cut-off valve portion 102 .

In this embodiment, the valve control cavity 121 communicates with the sliding cavity 130 , and one end of the sliding bolt 132 can partially extend into the valve control cavity 121 . One end of the sliding bolt 132 is a semi-circular, oval or arc-shaped structure, and the other end is an arc-shaped structure with an upper and lower drop area. The sliding cavity 130 is further provided with a second spring 131 , one end of the second spring 131 is connected to the inner side of the sliding cavity 130 , and the other end is connected to the sliding bolt 132 . The sliding bolt 132 moves to the left under the elastic force of the second spring 131 , and one end of the sliding bolt 132 extends into the sliding cavity 130 .

When the strong magnetic slider 125 slides down, one end of the semicircular, elliptical or arc-shaped structure has an arc surface, and is pressed against one end of the sliding bolt 132 which also has an arc surface, and the sliding bolt 132 Slide to the right to compress the second spring 131 , the second spring 131 is the same as the first spring 124 , which can buffer the impact force.

At this time, the other end of the sliding bolt 132 acts on the cleaning shaft 110 of the cleaning assembly 11 through the arc structure with the upper and lower drop area, and the cleaning shaft 110 follows the end surface of the arc structure moving to the right. The synchronous upward movement is performed, and the cleaning assembly 11 also gradually approaches the sensor 2 . When the shut-off valve 102 enters the fully open state, the cleaning assembly 11 contacts the sensor 2, and when fluids such as water flow in the pipeline, the cleaning assembly 11 is driven to rotate and brush.

As shown in FIG. 5 and FIG. 6 , the cleaning assembly 11 includes a rotatable cleaning impeller 111 , the cleaning impeller 111 is fixedly connected with a cleaning shaft 110 , and the lower end of the cleaning shaft 110 abuts against the sliding bolt 132 . The pipe body 1 is provided with a hole, the hole communicates with the sliding cavity 130, the cleaning shaft 110 is installed and arranged in the hole, the cleaning shaft 110 can move up and down, and the lower end of the cleaning shaft 110 is provided with a curved surface structure, It is used for sliding along the arc structure of the sliding bolt 132 with the upper and lower drop areas. A sealing portion 100 is provided at the connection of the holes for installing the sealing and preventing fluid from overflowing.

With reference to FIG. 7 , a cleaning blade assembly 112 is connected to the upper end of the cleaning shaft 110 , and the cleaning blade assembly 112 includes a brush rod on which a number of soft bristles are arranged. The cleaning impeller 111 is a multi-blade rotatable impeller. When a fluid such as water flows through the channel, it impacts the cleaning impeller 111 , the cleaning impeller 111 rotates around the cleaning shaft 110 , and the cleaning shaft 110 drives the cleaning blade assembly 112 to rotate. As shown in FIG. 6 , when the cleaning shaft 110 pushes up against the sensor 2 under the action of the sliding bolt 132 , the rotating cleaning sheet assembly 112 is exposed to the The sensor measurement unit 201 of the sensor 2 performs brushing and is rinsed with a fluid such as water flow.

Referring also to FIG. 3 or FIG. 4 , a buffer pad 126 is further provided between the electromagnet 123 and the strong magnetic slider 125 .

As shown in FIG. 8 , the length or height of the water inlet channel 101 , the valve control cavity 121 , the valve support rod 122 , the sliding bolt 132 and a part of the cleaning assembly 11 are as follows: Or multiple rules to execute:

Rule 1: The length of A1 of the valve support rod 122 is the same as the length of A2 or A3 of the valve control cavity 121;

Rule 2: The height of B1 of the water inlet channel 101 is the same as the height of B2 of the sliding bolt 132;

Rule 3: The C1 length of the sliding bolt 132 is the same as the C2 length.

In this embodiment, when the plug portion 1220 and the shut-off valve portion 102 are closed, the length A1 of the protruding portion of the valve support rod 122 corresponds to the valve support rod 122 and the valve control cavity. The distance A3 between the bottoms of the 121 is the same length, which is used to limit the position when the strong magnetic slider 125 and the valve support rod 122 slide downward, so as to avoid causing damage to the plug portion 1220. damage.

At the same time, the A1 is also the same length as the A2 of the valve control cavity 121 , and a sliding preventing block is provided to prevent the strong magnetic slider 125 from continuing to slide downward, which also acts as a limit. On the other hand, when the strong magnetic slider 125 slides upward from the sliding preventing block, the longest sliding distance is also A2, and this distance is consistent with the A1, which can protect the shut-off valve portion 102 to prevent the plug portion 1220 from causing damage to the shut-off valve portion 102 . During this period, the first spring 124 , the buffer pad 126 and the second spring 131 also play a certain buffering role.

When the cleaning assembly 11 is at the bottom, that is, when the cleaning shaft 110 is at the lowest position of the arc structure of the drop region of the sliding bolt 132 , the sliding bolt 132 extends into the valve control cavity 121 The length C1 of the part is the same as the length C2 of the vertical projection of the arc structure of the arc structure of the drop region of the sliding bolt 132, or the length C1 may be larger than the length C2.

When the sliding bolt 132 moves to the right under the push of the strong magnetic slider 125, the cleaning shaft 110 follows the arc-shaped structure and pushes upward. When the sliding bolt 132 extends into the valve control cavity When all the parts in 121 are moved back to the inside of the sliding cavity 130, the cleaning shaft 110 is also at the highest position of the arc structure of the sliding bolt 132, and the cleaning assembly 11 will contact the sensor 2 at this time. Bottom measurement area.

The present invention also includes an electrical part or an intelligent control part.

A fluid measuring pipeline device provided by the present invention, when not required for measurement or when no fluid passes through the measuring pipeline, the cleaning component is automatically separated from the sensor, keeping a certain distance, avoiding prolonged contact, causing dirt to adhere and affecting measurement results.

The invention provides a fluid measuring pipeline device. When the measuring pipeline is opened, the fluid enters, and the cleaning component also automatically lifts up to contact the sensor. Under the impact of the fluid, it performs rotary brushing and cleaning, which can ensure the cleanliness of the measuring area of the sensor. , thereby improving the measurement accuracy.

The invention provides a fluid measuring pipeline device, the measuring pipeline device can be set in a closed type, the liquid is not in direct contact with the air, it can avoid the fusion of the water body and the air when measuring the fluid such as water body, the closed measurement method is more scientific, and the data reliable.

In the fluid measuring pipeline device provided by the present invention, before, during or after the sensor measurement process, as long as the fluid is still there, the sensor is continuously cleaned or brushed, so that the sensor can be kept in a better measurement state.

The fluid measuring pipeline device provided by the invention does not need to regularly disassemble the device to clean and maintain the sensor, thereby reducing the maintenance cost.

The fluid measuring pipeline device provided by the present invention can maintain a certain liquid flow velocity during the whole measuring process, and this measuring method is more accurate for some specific fluids and corresponding measuring sensors that require flow velocity.

The above descriptions are only preferred embodiments of the present invention, only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those who are familiar with the art to understand the content of the present invention and implement accordingly, but it cannot be limited by this protection scope of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims (10)

1. The fluid measurement pipeline device is characterized by comprising a pipeline main body (1) internally provided with a water inlet channel (101) and a cleaning assembly (11), wherein the pipeline main body (1) is also provided with a stop valve part (102) for intercepting, a control part (12) for controlling the interception and a sliding part (13) for triggering and lifting the cleaning assembly (11);

the cleaning assembly (11) is arranged in the water inlet channel (101), a through hole is formed in a pipeline above the cleaning assembly (11), and a sensor (2) for fluid detection is arranged at the through hole in a sealing mode;

the control part (12) comprises a valve control cavity (121) internally provided with an electromagnet (123) and a strong magnetic slider (125), the strong magnetic slider (125) is fixedly connected with a valve support rod (122), and one end of the valve support rod (122) is provided with a blocking head part (1220) for blocking on the stop valve part (102);

the sliding part (13) comprises a sliding cavity (130) provided with a sliding bolt (132), the strong magnetic sliding block (125) drives the sliding bolt (132) to slide left and right when sliding up and down, and the sliding bolt (132) drives the cleaning component (11) to slide up and down.

2. A fluid measurement pipe arrangement according to claim 1, wherein one or both ends of said strong magnetic slider (125) is of a semi-circular, elliptical or arcuate configuration.

3. The fluid measurement pipeline device according to claim 1, wherein a first spring (124) is further arranged in the valve control cavity (121), one end of the first spring (124) is connected with the bottom of the inner side of the valve control cavity (121), and the other end of the first spring (124) is connected with the strong magnetic slider (125).

4. A fluid measurement pipe arrangement according to claim 1, wherein said valve control chamber (121) communicates with said sliding chamber (130), and one end of said sliding plug (132) may partially protrude into said valve control chamber (121).

5. The fluid measurement conduit device according to any one of claims 1 or 4, wherein one end of the sliding bolt (132) has a semicircular, elliptical or arc-shaped structure, and the other end has an arc-shaped structure with an upper and lower drop height area.

6. A fluid measurement pipe arrangement according to any one of claims 1 or 4, wherein a second spring (131) is further arranged in the sliding chamber (130), one end of the second spring (131) is connected to the inner side of the sliding chamber (130), and the other end is connected to the sliding bolt (132).

7. A fluid measuring pipe arrangement according to claim 1, characterized in that the cleaning assembly (11) comprises a rotatable cleaning impeller (111), the cleaning impeller (111) is fixedly connected with a cleaning shaft (110), and the lower end of the cleaning shaft (110) abuts against the sliding bolt (132).

8. The fluid measurement pipe apparatus according to claim 7, wherein a cleaning blade assembly (112) is connected to an upper end of the cleaning shaft (110), and the cleaning blade assembly (112) comprises a brush rod on which a plurality of soft bristles are arranged.

9. A fluid measurement tubing set as claimed in claim 7 wherein said cleaning impeller (111) is a multi-bladed rotatable impeller.

10. A fluid measuring tube arrangement according to claim 1, characterized in that a buffer pad (126) is arranged between the electromagnet (123) and the strong magnetic slider (125).

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