Pressure measuring tube with backwashing structure

Abstract

The utility model discloses a piezometric tube with a backwashing structure, which comprises a tube body, a washing assembly and a positioning assembly, the tube body comprises a guide tube section and a permeable section which are of an up-down structure, the washing assembly is arranged in the tube body and is provided with a water outlet tube, the positioning assembly comprises a sleeve, a positioning plate and an elastic piece, and the sleeve is connected to the water outlet tube. The sleeve is provided with a sliding way facing the inner wall of the pipe body, the positioning plate is slidably arranged on the sliding way, the elastic piece is arranged between the sleeve and the positioning plate, and the positioning plate keeps making contact with the inner wall of the pipe body under the elastic force of the elastic piece. By means of continuous elastic pressing of the elastic piece on the positioning plate, a constraint structure is formed between the water outlet pipe and the inner wall of the pipe body, the structure can effectively restrain transverse shaking caused by fluid impact in backwashing operation, vibration energy is absorbed through deformation of the elastic piece, and therefore the vibration amplitude and frequency of the washing assembly are reduced, and the washing efficiency is improved. The dynamic load impact of the joint part is obviously reduced, and the stability and durability of the whole structure are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of groundwater monitoring technology in water conservancy projects, and in particular to a pressure measuring pipe with a backwashing structure. Background Technology

[0002] The Chinese Patent Database discloses a patent titled "A Pressure Testing Pipe with a Backwashing Structure," with authorization announcement number CN219064763U and authorization announcement date of May 23, 2023. The specification states that: the lower end of the inlet pipe 301 is connected to the upper interface of the five-way connector 305; the four interfaces around the five-way connector 305 are respectively connected to four transversely arranged diversion pipes 302. This arrangement allows the high-pressure water flow to be positioned along the axis of the pipe body 1 after entering the five-way connector 305 through the inlet pipe 301, enabling it to flow relatively evenly in all directions; the outer ends of the diversion pipes 302 are connected to the outlet pipe 303 through two-way connectors 306; and the lower end of the blow-out pipe is a closed structure.

[0003] The shortcomings of the above technical solution are that, since the flushing assembly only has a support component at the very bottom of the outlet pipe, and its upper end is only connected to the inlet pipe through a five-way connector, and the overall structure of the outlet pipe is relatively long, in actual operation, the inflow / outflow of water relative to the pressure measuring pipe will cause the flushing assembly to shake slightly. Especially when performing backwashing operations, the high-speed, high-pressure water jets sprayed through the outlet holes will cause a violent impact on the side wall of the pressure measuring pipe. The reaction force of the high-pressure water jets will cause the outlet pipe to shake significantly and more violently. The water inside the pressure measuring pipe will also vibrate violently due to the sprayed water jets, which in turn will further aggravate the vibration of the flushing assembly. This shaking will be transmitted to its pipe joint, generating a huge impact load and continuous vibration stress. This not only seriously threatens the stability and reliability of the flushing assembly connection structure, but also easily leads to the failure of the joint structure due to fatigue or overload. Utility Model Content

[0004] This application provides a pressure testing pipe with a backwashing structure. By adding a positioning structure to the outlet pipe, the stability of the structure is improved, and the impact load and continuous vibration stress on the pipe joint are reduced.

[0005] This application provides a pressure testing tube with a backflushing structure, comprising:

[0006] The pipe body includes the upper and lower conduit sections and the permeable section;

[0007] A flushing assembly is disposed in the pipe body, the flushing assembly having a water outlet pipe, and the water outlet pipe having a water outlet hole facing the inner wall of the pipe body;

[0008] The positioning assembly includes: a sleeve, a positioning plate, and an elastic element. The sleeve is connected to the outlet pipe and has a slide rail facing the inner wall of the pipe. The positioning plate is slidably disposed in the slide rail. The elastic element is disposed between the sleeve and the positioning plate, and the positioning plate is kept in contact with the inner wall of the pipe under the elastic force of the elastic element.

[0009] The beneficial effects of the above embodiments are as follows: by continuously pressing the positioning plate with the elastic element, a constraint structure is formed between the outlet pipe and the inner wall of the pipe body. This structure can effectively suppress the lateral shaking caused by fluid impact during backwashing operations. The deformation of the elastic element absorbs the energy of the vibration, thereby reducing the amplitude and frequency of the vibration of the flushing component, significantly reducing the dynamic load impact at the joint, and enhancing the overall structural stability and durability.

[0010] Based on the above embodiments, the embodiments of this application can be further improved as follows:

[0011] In one embodiment of this application, the positioning component is disposed on the conduit segment. The beneficial effect of this step is that placing the positioning component on the conduit segment avoids any adverse impact on water exchange in the permeable section.

[0012] In one embodiment of this application: the positioning component further includes a positioning element, wherein the sleeve is slidably fitted onto the water outlet pipe, and the positioning element positions the sleeve on the water outlet pipe. The beneficial effect of this step is that the sleeve's slidable placement on the water outlet pipe allows for free adjustment of the sleeve's axial position along the water outlet pipe, facilitating the adaptation of the positioning component to the length of the water outlet pipe.

[0013] In one embodiment of this application: the positioning component further includes a sliding column, one end of which is connected to the positioning plate, and the other end of which has a limiting portion disposed in the sleeve, the limiting portion being used to limit the sliding column within the sleeve. The beneficial effect of this step is that by configuring the limiting portion, the positioning plate can be stably connected to the sleeve.

[0014] In one embodiment of this application, a sealing structure is provided between the sleeve and the sliding column. The beneficial effect of this step is that the sealing structure prevents muddy water from entering the sliding column's movement gap, avoiding jamming caused by particulate matter deposition, and ensuring the long-term stability of the positioning component.

[0015] In one embodiment of this application: the sliding column has a groove, and the elastic element is inserted into the groove. The beneficial effect of this step is that the structure of the elastic element being embedded in the groove of the sliding column prevents the elastic element from radially shifting during compression, thereby maintaining the straightness of the elastic force transmission path.

[0016] In one embodiment of this application, the shape of the positioning plate matches the shape of the inner wall of the tube. The beneficial effect of this step is that the curved surface adaptation design of the positioning plate and the inner wall of the tube maximizes the contact area between the positioning plate and the tube, effectively dispersing local stress concentration and preventing damage to the tube wall. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of a pressure measuring tube with a backwashing structure.

[0019] Figure 2 This is a structural diagram of the positioning component;

[0020] Figure 3 This is a schematic diagram of the arrangement of the positioning components.

[0021] The components include: 1. Pipe body; 2. Flushing assembly; 3. Positioning assembly; 301. Sleeve; 302. Positioning plate; 303. Elastic element; 304. Slide rail; 305. Positioning element; 306. Slide column; and 4. Support assembly. Detailed Implementation

[0022] In this application, unless otherwise expressly specified and limited, the terminology used should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of different terms in this utility model according to the specific circumstances, and the scope of the specific meaning should be limited to achieving the function of this application.

[0023] In the description of this application, it should be understood that the directional terms or positional relationships described are based on the orientation or positional relationships shown in the accompanying drawings, or based on the orientation or positional relationships in actual use, and are only for the purpose of facilitating the description of the contents of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] like Figure 1-3As shown, a pressure testing pipe with a backflushing structure includes: a pipe body 1, a flushing assembly 2, and a positioning assembly 3. The pipe body 1 includes an upper and lower conduit section and a water-permeable section. The flushing assembly 2 is disposed in the pipe body 1 and has a water outlet pipe with a water outlet hole facing the inner wall of the pipe body 1. The positioning assembly 3 includes: a sleeve 301, a positioning plate 302, and an elastic element 303. The sleeve 301 is connected to the water outlet pipe and has a slide rail 304 facing the inner wall of the pipe body 1. The positioning plate 302 is slidably disposed in the slide rail 304. The elastic element 303 is disposed between the sleeve 301 and the positioning plate 302, and the positioning plate 302 is kept in contact with the inner wall of the pipe body 1 under the elastic force of the elastic element 303.

[0025] Specifically, such as Figure 1 As shown, the pressure testing pipe with backwashing structure also includes a support component 4, which connects the lower end of the water outlet pipe into an integral structure and forms a positioning structure with the lower end of the pipe body 1.

[0026] It should be noted that the embodiments of this application are improvements to the patent technology solution with authorization announcement number CN219064763U. The overall structure of the tube body 1, the flushing component 2, and the support component 4 is exactly the same as the corresponding part in the above-mentioned patent content. The structure of the tube body 1, the flushing component 2, and the support component 4 will be briefly described below.

[0027] Specifically, such as Figure 1 As shown, the upper end of the pipe body 1 is the guide section and the lower end is the permeable section. The surface of the permeable section has holes for water flow. The permeable section is buried in the filter material (medium and coarse sand) in the soil. The outside of the permeable section is covered with a filter screen. The filter screen and the filter material are used to filter solid impurities in the water.

[0028] Specifically, such as Figure 1 As shown, the flushing assembly 2 also includes: an inlet pipe, a five-way connector, and a diversion pipe. The inlet pipe is connected to a water pump, and the water pump is connected to an external water source through a pipe. The water pump pumps backwash water into the inlet pipe. The lower end of the inlet pipe is connected to the inlet of the five-way connector, and the four outlets of the five-way connector are respectively connected to the outlet pipes arranged vertically.

[0029] Specifically, such as Figure 1 As shown, a support assembly 4 is connected to the lower end of the water outlet pipe. The support assembly 4 includes a sleeve section, a support rod, and a nut. The sleeve section is an overall circular structure. The sleeve section is fitted onto the lower end of the water outlet pipe. The support rod is arranged on the sleeve section facing the inner wall of the pipe body 1. The support rod is used to contact the inner wall of the pipe body 1 to form a support structure. The nut is connected to the water outlet pipe and forms a limiting structure for the sleeve section fitted onto the water outlet pipe, thereby stably positioning the sleeve section on the water outlet pipe.

[0030] Specifically, such as Figure 1 As shown, the positioning component 3 is disposed on the conduit section, that is, the positioning plate 302 is in contact with the inner wall of the conduit section. By placing the positioning component 3 on the conduit section, the positioning component 3 is prevented from having an adverse effect on the water exchange of the permeable section.

[0031] Specifically, such as Figure 2 As shown, the positioning component 3 further includes a positioning element 305. The sleeve 301 is slidably fitted onto the water outlet pipe. The positioning element 305 positions the sleeve 301 on the water outlet pipe. The sleeve 301 is slidably disposed on the water outlet pipe, which realizes that the position of the sleeve 301 along the axial direction of the water outlet pipe can be freely adjusted, making it easy for the positioning component 3 to adapt to the length of the water outlet pipe.

[0032] Specifically, such as Figure 3 As shown, the positioning component 305 is a clamp, which includes two semi-circular clamp sections. The ends of the clamp sections that are in contact with each other extend outward to form a connecting section. The connecting section is connected by bolts and nuts, thereby connecting the two clamp sections into a whole structure. The inner side of the clamp is equipped with an arc-shaped anti-slip rubber pad. The inner diameter of the rubber pad is smaller than the outer diameter of the water outlet pipe, so that the clamp can hold the water outlet pipe tightly and improve the positioning stability through the rubber pad. The end face of the clamp has four through holes, and each through hole is inserted with a bolt that is threaded to the end face of the sleeve 301. The two clamps are connected at the upper and lower ends of the sleeve 301 respectively, so that the sleeve 301 is stably positioned on the outside of the water outlet pipe.

[0033] Specifically, such as Figure 2 As shown, the positioning component 3 further includes a sliding column 306, one end of which is connected to the positioning plate 302, and the other end has a limiting part. The limiting part is disposed in the sleeve 301 and is used to limit the sliding column 306 to the sleeve 301. By configuring the limiting part, the positioning plate 302 can be stably connected to the sleeve 301.

[0034] Specifically, such as Figure 2 As shown, the sleeve 301 has a boss on its outer circumferential surface facing the inner wall of the cylinder. The boss has a groove and a pressure cap is connected to the end face of the boss. The pressure cap has a sliding hole corresponding to the sliding column 306. The sliding hole is the slide channel 304. One end of the sliding column 306 is slidably inserted into the sliding hole. The end of the sliding column 306 located in the groove is provided with a limiting part. The outer diameter of the limiting part is larger than the outer diameter of the sliding hole, so that the pressure cap limits the limiting part in the groove.

[0035] Specifically, such as Figure 2 As shown, there is a sealing structure between the sleeve 301 and the sliding column 306. The sealing structure prevents water containing mud and sand from entering the movement gap of the sliding column 306, avoids jamming caused by particulate matter deposition, and ensures the long-term stability of the positioning component 3.

[0036] Specifically, such as Figure 2 As shown, the sealing structure includes: a sealing ring, the inner ring of the gland is provided with a sealing ring groove, and the sealing ring is fitted on the outside of the slide column 306 and disposed in the sealing ring groove.

[0037] Specifically, such as Figure 2 As shown, the sliding column 306 has a groove, and the elastic element 303 is inserted into the groove. The groove is opened at the end of the sliding column 306 located in the groove. The elastic element 303 is a cylindrical compression spring. The structure of the elastic element 303 embedded in the groove of the sliding column 306 avoids radial displacement of the elastic element 303 during compression, thereby maintaining the straightness of the elastic force transmission path.

[0038] Specifically, such as Figure 1 As shown, the shape of the positioning plate 302 matches the shape of the inner wall of the pipe body 1. The curved surface adaptation design of the positioning plate 302 and the inner wall of the pipe body 1 maximizes the contact area between the positioning plate 302 and the pipe body 1, effectively disperses local stress concentration, and prevents damage to the pipe wall.

[0039] When in use, the pressure testing pipe with the backwashing structure forms a constraint structure between the outlet pipe and the inner wall of the pipe body 1 by the continuous pressure of the elastic element 303 on the positioning plate 302. This structure can effectively suppress the lateral shaking caused by fluid impact during backwashing operations. The deformation of the elastic element 303 absorbs the energy of the vibration, thereby reducing the amplitude and frequency of the vibration of the flushing assembly 2, significantly reducing the dynamic load impact at the joint, and enhancing the overall structural stability and durability.

[0040] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A pressure tube having a backwash structure, characterized by, include: The pipe body includes the upper and lower conduit sections and the permeable section; A flushing assembly is disposed in the pipe body, the flushing assembly having a water outlet pipe, and the water outlet pipe having a water outlet hole facing the inner wall of the pipe body; The positioning assembly includes: a sleeve, a positioning plate, and an elastic element. The sleeve is connected to the outlet pipe and has a slide rail facing the inner wall of the pipe. The positioning plate is slidably disposed in the slide rail. The elastic element is disposed between the sleeve and the positioning plate, and the positioning plate is kept in contact with the inner wall of the pipe under the elastic force of the elastic element.

2. The pressure pipe with backwash structure according to claim 1, characterized by, The positioning component is disposed on the catheter segment.

3. The pressure pipe with backwash structure according to claim 1, characterized by, The positioning component further includes a positioning element, wherein the sleeve is slidably fitted onto the water outlet pipe, and the positioning element positions the sleeve onto the water outlet pipe.

4. The pressure pipe with backwash structure according to claim 1, characterized by, The positioning component further includes a sliding column, one end of which is connected to the positioning plate, and the other end of which has a limiting part. The limiting part is disposed in the sleeve and is used to limit the sliding column to the sleeve.

5. The pressure pipe with backwash structure according to claim 4, characterized in that, The sleeve and the sliding column have a sealing structure.

6. The pressure pipe with backwash structure according to claim 4, characterized by, The sliding column has a groove, and the elastic element is inserted into the groove.

7. The pressure pipe with backwash structure according to claim 1, characterized by, The shape of the positioning plate matches the shape of the inner wall of the tube.

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