Anti-splashing pipeline pressure measuring mechanism capable of stopping and dredging

Abstract

The invention provides an anti-splashing type pipeline pressure measuring mechanism capable of being cut off and dredged. The anti-splashing type pipeline pressure measuring mechanism comprises a water conservancy pipeline and a pressure measuring pipeline connected to the lower portion of the left end of a water conservancy pipeline body in a penetrating mode. A pressure measuring mechanism body is arranged at the left end of the pressure measuring pipeline, and the right end of the pressure measuring mechanism body is in through connection with the left end of the pressure measuring pipeline through a main connecting flange; a pressure measuring meter is arranged at the top end of the pressure measuring mechanism body; wherein the left end and the bottom end of the pressure measuring mechanism body are respectively provided with a cut-off mechanism, each cut-off mechanism comprises a bolt locking sleeve, and the interior of each bolt locking sleeve is fixedly connected to the outer end of a cut-off cylinder. According to the anti-splashing pipeline pressure measuring mechanism capable of stopping and dredging, a medium of a water conservancy pipeline is blocked and stopped through the stopping mechanisms at the left end and the bottom end of the pressure measuring mechanism body, and then the blocked position is dredged and cleaned through rotation of a cleaning and brushing rotating rod and a cleaning and brushing arc plate contained in the matched dredging mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline pressure measurement, and in particular to a splash-proof pipeline pressure measurement mechanism capable of cutting off and clearing. Background Art

[0002] Pipeline pressure measurement mainly refers to the detection of the flow pressure of liquid and gas inside the pipeline by means of test instruments such as pressure gauges. The pressure gauge is connected to the pressure measuring tube connected through the side of the pipeline so that the pressure can be transmitted to the inside of the pressure measuring tube when the internal medium flows, so that the pressure inside the pipeline can be detected by the pressure gauge. However, in existing water conservancy pipelines, due to the inclusion of silt, dirt and other substances, the water will enter the pressure measuring tube and block it while following the water flow, making it difficult to discharge it outward, which will affect the pressure gauge's detection and display of the internal pressure of the pipeline. Therefore, it is necessary to regularly clear and clean the pressure measuring tube and the connecting pipe at the bottom of the pressure gauge. For example, the method for online unblocking and anti-blocking of pressure pipes disclosed in announcement number CN113049176B ensures that the pressure transmitter continuously and uninterruptedly detects the pressure value data of the cooling water main pipeline online, and the pressure pipes of the pressure transmitter and the pressure gauge can be cleaned and unblocked at any time by controlling and operating the two-position three-way solenoid valve group. By timely cleaning and unblocking the pressure pipes of the pressure transmitter and the pressure gauge, the blockage of the pressure pipes can be reliably prevented, thereby avoiding the occurrence of false alarms and false shutdown failures of equipment operation parameters; Announcement No. CN2828775Y discloses a high temperature resistant, anti-corrosion, and anti-blocking pressure measuring device. Since the temperature resistant liquid in the pressure measuring device isolates the high temperature gas and liquid from the pressure gauge, the working environment of the pressure gauge is improved and the use temperature of the pressure measuring device is increased. The container is composed of a cover and a liquid container, so when cleaning the container, the cover can be opened, which facilitates the cleaning of the inside of the container. However, the above-mentioned unclogging mechanism for pipeline pressure measurement still has the following problems during actual use: although the unclogging mechanism inside the pipeline can clean up blockages and the like, such cleaning mechanism can only be used when the mechanism inside the pipeline stops, causing pipeline transportation to stop and affecting work efficiency. When the medium is unclogging and cleaning is performed without stopping transportation, leakage is prone to occur, resulting in the unclogging mechanism being difficult to effectively unblock the inside of the pipeline under high pressure conditions. At the same time, the unclogging and cleaning will not be comprehensive due to the medium pressure, resulting in blockage residues that affect the accuracy of pressure measurement. Summary of the invention

[0003] The purpose of the present invention is to provide a splash-proof pipeline pressure measuring mechanism that can cut off unblocking, in order to solve the problem that the existing unblocking mechanism inside the pipeline is used to clean the blockage and the like, but such cleaning mechanism can only be used when the mechanism inside the pipeline is stopped, causing the pipeline transportation to stop and affect the work efficiency, and the medium is prone to leakage when unblocking and cleaning is performed without stopping the transportation, resulting in the unblocking mechanism being difficult to effectively unblock the inside of the pipeline under high pressure conditions, and the unblocking and cleaning will also be incomplete due to the medium pressure, resulting in blockage residues affecting the accuracy of pressure measurement.

[0004] In order to realize the above technical features, the object of the present invention is achieved as follows: a splash-proof pipeline pressure measuring mechanism capable of shutting off and unblocking comprises a water conservancy pipeline and a pressure measuring pipeline connected to the lower left end of the water conservancy pipeline body; and further comprises: a pressure measuring mechanism body is arranged at the left end of the pressure measuring pipeline, and the right end of the pressure measuring mechanism body is connected to the left end of the pressure measuring pipeline through a main connecting flange; A pressure gauge is provided at the top of the pressure measuring mechanism body, and the top of the pressure measuring mechanism body is connected to the bottom of the pressure gauge through a secondary connecting flange; The left end and the bottom end of the pressure measuring mechanism body are both provided with a cut-off mechanism, the cut-off mechanism includes a bolt locking sleeve, and the inside of the bolt locking sleeve is fixedly connected to the outer end of the cut-off cylinder.

[0005] Preferably, the shut-off mechanism comprises a bolt locking sleeve and a shut-off cylinder which are combined to form a "T"-shaped structural distribution arrangement, the bolt locking sleeve is threadedly connected to the left end and the bottom end of the pressure measuring mechanism body, and the shut-off cylinder inside the bolt locking sleeve is installed inside the pressure measuring mechanism body, and a shut-off valve plate is fixedly installed on the inner and outer sides of the shut-off cylinder.

[0006] Preferably, the cut-off mechanism includes a spiral driving block, which is fixedly mounted on the inner side of the cut-off cylinder, and a spiral guide groove is provided on the inner wall of the spiral driving block. The cut-off mechanism includes a clearing mechanism, and the clearing mechanism includes a driving spiral rod, and the driving spiral rod is meshedly connected with the spiral guide groove provided inside the spiral driving block.

[0007] Preferably, the unblocking mechanism includes a brush cleaning rotating rod, which is slidably arranged at equal angles inside the cut-off cylinder included in the cut-off mechanism, and the outer end of the brush cleaning rotating rod arranged at equal distances is penetrated and connected with a transmission pressure plate, and the interior of the transmission pressure plate is provided with a transmission gear for equal-angle rotation through a bearing, and the transmission gear arranged at equal angles is fixedly connected to the outer end of the brush cleaning rotating rod.

[0008] Preferably, the dredging mechanism includes a driving gear, which is rotatably arranged at the inner center position of the transmission pressure plate, and is fixedly connected to the outer end of the driving screw rod, and is meshingly connected with the transmission gear inside the transmission pressure plate.

[0009] Preferably, the dredging mechanism includes a cleaning cylinder, the outer side of the cleaning cylinder is fixedly connected to the inner end of the driving spiral rod, and the inner side of the cleaning cylinder is slidably connected to the inner end of the cleaning arc plate at an equal angle, and the cleaning arc plate and the cleaning cylinder arranged at an equal angle are connected to each other through an elastic telescopic rod, and at the same time, the outer end of the cleaning arc plate arranged at an equal angle slides through the outside of the cleaning cylinder.

[0010] Preferably, the outer diameter of the cleaning column included in the unblocking mechanism is smaller than the inner diameter of the cut-off cylinder, and the cleaning column and the cleaning arc plate in the initial state are received inside the cut-off cylinder, and the right end of the cleaning rotating rod arranged at equal angles inside the cut-off cylinder is rotatably connected to a positioning ring body, and the stability of the cleaning rotating rod during movement is ensured by the positioning ring body.

[0011] Preferably, a transverse channel and a vertical channel are opened inside the pressure measuring mechanism body, the transverse channel connects the pressure measuring pipeline with the pressure measuring mechanism body and the cut-off mechanism at the left end, and the vertical channel connects the pressure gauge with the pressure measuring mechanism body and the cut-off mechanism at the bottom end.

[0012] Preferably, the horizontal and vertical holes facilitate the cleaning rod and cleaning column included in the unblocking mechanism to drive the external cleaning arc plate to move and rotate, so as to unblock and clean the pressure measuring pipeline and pressure gauge channel connected through the unblocking mechanism, and prevent the pressure measuring pipeline and water pipeline from leaking when water is not stopped by a cut-off mechanism installed on the unblocking mechanism.

[0013] Compared with the prior art, the present invention has the following beneficial effects: the splash-proof pipeline pressure measuring mechanism capable of cutting off and unblocking blocks and cuts off the medium in the water conservancy pipeline through the cut-off mechanisms at the left and bottom ends of the pressure measuring mechanism body, and then dredges and cleans the blocked area through the rotation of the cleaning rotating rod and the cleaning arc plate included in the matching unblocking mechanism. The specific contents are as follows: 1. Connect the pressure measuring mechanism body to the pressure measuring pipeline through the main connecting flange, and connect the pressure measuring mechanism to the pressure measuring mechanism body through the secondary connecting flange, so that the pressure gauge can penetrate the water conservancy pipeline and the pressure measuring pipeline for subsequent pressure measurement and display; At the same time, the shut-off cylinder is threadedly connected to the left end and the bottom end of the pressure measuring mechanism body through the bolt locking sleeve at the outer end, so that the shut-off valve plate arranged inside the shut-off cylinder cooperates with the driving screw rod to achieve a sealing effect, so as to prevent leakage when the medium flows inside the water conservancy pipeline. The shut-off valve plate cooperates with the driving screw rod to achieve the shut-off and sealing of the medium, so as to prevent leakage during the pressure measurement and subsequent dredging process.

[0014] 2. By pressing the transmission pressure plate, the driving screw rod and the spiral driving block are meshed and connected through the spiral guide groove, so that the driving gear, the transmission gear and the cleaning rod can be rotated by the rotating driving screw rod, so that the cleaning rods set at equal angles driven by the transmission pressure plate can rotate synchronously during the movement, thereby cleaning the inner wall of the through-connected pressure measuring pipe.

[0015] 3. The driving screw rod drives the cleaning column to move inward. After moving out of the outside of the cut-off cylinder, the cleaning arc plate connected by the elastic telescopic rod slides outward so as to fit the inner wall of the pressure measuring mechanism body and the pressure measuring pipe. The cleaning column and the cleaning arc plate move and rotate. At the same time, the rotating cleaning arc plate contacts the cleaning rotating rod and moves inward. After passing the cleaning rotating rod, it pops out again to achieve a comprehensive cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below.

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the pressure measuring mechanism body of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the spiral drive block of the present invention.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the pressure measuring mechanism body of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the cleaning column after sliding of the present invention.

[0022] Figure 6 This is a schematic diagram of the installation structure of the arc cleaning plate of the present invention.

[0023] Figure 7 This is a schematic diagram of the installation structure of the stop valve plate of the present invention.

[0024] Figure 8 It is a schematic diagram of the installation structure of the transmission pressure plate of the present invention.

[0025] Fig. 9 It is a schematic diagram of the installation structure of the transmission gear and the driving gear of the present invention.

[0026] In the figure: 1. hydraulic pipeline; 2. pressure measuring pipeline; 3. pressure measuring mechanism body; 4. main connecting flange; 401. secondary connecting flange; 5. pressure gauge; 6. bolt locking sleeve; 7. shut-off cylinder; 8. horizontal channel; 9. vertical channel; 10. shut-off valve plate; 11. spiral drive block; 12. spiral guide groove; 13. driving spiral rod; 14. brushing rotating rod; 15. transmission pressure plate; 16. transmission gear; 17. driving gear; 18. brushing column; 19. brushing arc plate; 20. elastic telescopic rod; 21. positioning ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1: See also Figure 1-Figure 9 In order to solve the problems existing in the working process of the existing dredging mechanism, the present embodiment adopts the following technical scheme: a splash-proof pipeline pressure measuring mechanism that can cut off dredging, comprising a water conservancy pipeline 1, and a pressure measuring pipeline 2 connected to the lower left end of the water conservancy pipeline 1 body; a pressure measuring mechanism body 3 is provided at the left end of the pressure measuring pipeline 2, and the right end of the pressure measuring mechanism body 3 is connected to the left end of the pressure measuring pipeline 2 through a main connecting flange 4; a pressure measuring gauge 5 is provided at the top of the pressure measuring mechanism body 3, and the top of the pressure measuring mechanism body 3 is connected to the bottom end of the pressure measuring gauge 5 through a secondary connecting flange 401.

[0029] Furthermore, a transverse channel 8 and a vertical channel 9 are provided inside the pressure measuring mechanism body 3, and the transverse channel 8 connects the pressure measuring pipe 2 with the pressure measuring mechanism body 3 and the cut-off mechanism at the left end, and the vertical channel 9 connects the pressure gauge 5 with the pressure measuring mechanism body 3 and the cut-off mechanism at the bottom end; wherein, the left end and the bottom end of the pressure measuring mechanism body 3 are both provided with a cut-off mechanism, and the cut-off mechanism includes a bolt locking sleeve 6, and the inside of the bolt locking sleeve 6 is fixedly connected to the outer end of the cut-off cylinder 7; the bolt locking sleeve 6 and the cut-off cylinder 7 included in the cut-off mechanism are combined to form a "T"-shaped structure distribution arrangement, and the bolt locking sleeve 6 is threadedly connected to the left end and the bottom end of the pressure measuring mechanism body 3, and the cut-off cylinder 7 inside the bolt locking sleeve 6 is installed inside the pressure measuring mechanism body 3, and a cut-off valve plate 10 is fixedly installed on the inner outer side of the cut-off cylinder 7.

[0030] like Figure 1-Figure 2 , Figure 4 As shown, first, the right end of the pressure measuring mechanism body 3 is connected to the left end of the pressure measuring pipe 2 connected to the water conservancy pipe 1 through the main connecting flange 4, and then the bottom end of the pressure gauge 5 is connected to the top of the pressure measuring mechanism body 3 through the secondary connecting flange 401.

[0031] Furthermore, the shut-off cylinder 7 included in the shut-off mechanism is inserted into the left end and the bottom end of the pressure measuring mechanism body 3, and then the shut-off cylinder 7 is threadedly connected to the left end and the bottom end of the pressure measuring mechanism body 3 through the bolt locking sleeve 6 at the outer end, so that the shut-off valve plate 10 arranged inside the shut-off cylinder 7 cooperates with the driving screw rod 13 to achieve a sealing effect, so as to prevent leakage when the medium flows inside the water conservancy pipeline 1, and the shut-off sealing for the medium is realized by the shut-off valve plate 10 cooperating with the driving screw rod 13.

[0032] Embodiment 2: In order to solve the problems existing in the working process of the existing dredging mechanism, the present embodiment adopts the following technical scheme: the cut-off mechanism includes a spiral driving block 11, and the spiral driving block 11 is fixedly installed on the inner side of the cut-off cylinder 7, and the inner wall of the spiral driving block 11 is provided with a spiral guide groove 12, and the cut-off mechanism includes a dredging mechanism, and the dredging mechanism includes a driving spiral rod 13, and the driving spiral rod 13 is meshedly connected with the spiral guide groove 12 provided inside the spiral driving block 11.

[0033] Furthermore, the unblocking mechanism includes a brush cleaning rotating rod 14, and the brush cleaning rotating rod 14 is slidably arranged at equal angles inside the cut-off cylinder 7 included in the cut-off mechanism, and the outer end of the brush cleaning rotating rod 14 arranged at equal distances is penetrated and connected with a transmission pressure plate 15, and a transmission gear 16 is arranged inside the transmission pressure plate 15 for equal angle rotation through a bearing, and the transmission gear 16 arranged at equal angles is fixedly connected to the outer end of the brush cleaning rotating rod 14; the unblocking mechanism includes a driving gear 17, and the driving gear 17 is rotatably arranged at the inner center position of the transmission pressure plate 15, and the driving gear 17 is fixedly connected to the outer end of the driving spiral rod 13, and the driving gear 17 is meshedly connected with the transmission gear 16 inside the transmission pressure plate 15.

[0034] like Figure 7-Figure 9As shown, when it is necessary to dredge and clean the pressure measuring mechanism body 3 through the dredging mechanism, the transmission pressure plate 15 contained in the dredging mechanism is manually pressed in the direction of the pressure measuring mechanism body 3. At this time, the driving screw rod 13 connected inside the transmission pressure plate 15 is driven to move inward, and the spiral driving block 11 connected to the driving screw rod 13 through the spiral guide groove 12 is fixedly installed inside the cut-off cylinder 7, so as to drive the meshing driving screw rod 13 to rotate through the spiral guide groove 12 opened on the inner wall of the cut-off cylinder 7. At this time, the driving screw rod 13 drives the driving gear 17 inside the transmission pressure plate 15 to rotate, and the driving gear 17 drives the outer meshing transmission gear 16 to rotate, so as to drive the internal cleaning rotating rod 14 to rotate synchronously during the movement, and the inner wall of the through-connected pressure measuring pipe 2 is cleaned by the cleaning rotating rod 14.

[0035] Furthermore, the dredging mechanism includes a cleaning column 18, and the outer side of the cleaning column 18 is fixedly connected to the inner end of the driving spiral rod 13, and the inner side of the cleaning column 18 is slidably connected to the inner end of the cleaning arc plate 19 at an equal angle, and the cleaning arc plate 19 and the cleaning column 18 arranged at an equal angle are connected to each other through an elastic telescopic rod 20, and at the same time, the outer end of the cleaning arc plate 19 arranged at an equal angle slides through the outside of the cleaning column 18; the outer diameter of the cleaning column 18 included in the dredging mechanism is smaller than the inner diameter of the cut-off cylinder 7, and the cleaning column 18 and the cleaning arc plate 19 in the initial state are stored in the cut-off cylinder 7 The interior of the cleaning and brushing rotating rod 14 is arranged at an equal angle inside the cut-off cylinder 7, and the right end of the cleaning and brushing rotating rod 14 is rotatably connected to the positioning ring body 21. At the same time, the positioning ring body 21 ensures the stability of the cleaning and brushing rotating rod 14 when it moves; through the horizontal channel 8 and the vertical channel 9, the cleaning and brushing rotating rod 14 and the cleaning and brushing column 18 included in the dredging mechanism drive the external cleaning and brushing arc plate 19 to move and rotate, so as to dredge and clean the pressure measuring pipeline 2 and the pressure measuring meter 5 channels connected through the dredging mechanism, and prevent the pressure measuring pipeline 2 and the water conservancy pipeline 1 from leaking when the water is not stopped through the cut-off mechanism installed for the dredging mechanism.

[0036] like Figure 4-Figure 6As shown, in the process of the transmission pressure plate 15 moving inward, the driving screw rod 13 and the cleaning column 18 at its inner end are driven to move synchronously. After the cleaning column 18 moves out of the outside of the cut-off cylinder 7, the cleaning arc plate 19 connected to the inside of the cleaning column 18 by the elastic telescopic rod 20 slides outward so as to fit against the inner walls of the pressure measuring mechanism body 3 and the pressure measuring pipe 2, and then the cleaning column 18 and the cleaning arc plate 19 set at equal angles on the outside are driven to move and rotate by the movement and rotation of the driving screw rod 13, so as to dredge and clean the pressure measuring pipe 2 and the pressure measuring mechanism body 3. At the same time, the rotating cleaning arc plate 19 contacts the cleaning rotating rod 14 and moves inward, and pops out again after passing the cleaning rotating rod 14, so as to achieve a comprehensive cleaning effect and prevent the problem of incomplete dredging due to dead corners in cleaning.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A splash-proof pipeline pressure measuring mechanism capable of shutting off and clearing, comprising a water conservancy pipeline (1), and a pressure measuring pipeline (2) connected to the lower left end of the water conservancy pipeline (1); It is characterized in that Also includes: A pressure measuring mechanism body (3) is provided at the left end of the pressure measuring pipeline (2), and the right end of the pressure measuring mechanism body (3) is connected to the left end of the pressure measuring pipeline (2) via a main connecting flange (4); A pressure gauge (5) is provided at the top end of the pressure measuring mechanism body (3), and the top end of the pressure measuring mechanism body (3) is connected to the bottom end of the pressure gauge (5) via a secondary connecting flange (401); The left end and the bottom end of the pressure measuring mechanism body (3) are both provided with a cut-off mechanism, the cut-off mechanism comprises a bolt locking sleeve (6), and the interior of the bolt locking sleeve (6) is fixedly connected to the outer end of the cut-off cylinder (7).

2. A splash-proof pipeline pressure measuring mechanism capable of shutting off and clearing according to claim 1, characterized in that: The bolt locking sleeve (6) and the shutoff cylinder (7) included in the shutoff mechanism are combined to form a "T"-shaped structure distribution arrangement, the bolt locking sleeve (6) is threadedly connected to the left end and the bottom end of the pressure measuring mechanism body (3), and the shutoff cylinder (7) inside the bolt locking sleeve (6) is installed inside the pressure measuring mechanism body (3), and a shutoff valve plate (10) is fixedly installed on the inner and outer sides of the shutoff cylinder (7).

3. The splash-proof pipeline pressure measuring mechanism capable of shutting off and clearing according to claim 2 is characterized in that: The cut-off mechanism comprises a spiral driving block (11), the spiral driving block (11) is fixedly mounted on the inner side of the cut-off cylinder (7), and a spiral guide groove (12) is provided on the inner wall of the spiral driving block (11). The cut-off mechanism comprises a dredging mechanism, and the dredging mechanism comprises a driving spiral rod (13), and the driving spiral rod (13) is meshingly connected with the spiral guide groove (12) provided inside the spiral driving block (11).

4. The splash-proof pipeline pressure measuring mechanism capable of shutting off and clearing according to claim 3 is characterized in that: The dredging mechanism comprises a brush cleaning rotating rod (14), which is slidably arranged at equal angles inside a cut-off cylinder (7) included in the cut-off mechanism, and the outer end of the brush cleaning rotating rod (14) arranged at equal distances is penetrated and connected with a transmission pressure plate (15), and a transmission gear (16) is arranged inside the transmission pressure plate (15) via a bearing for equal angle rotation, and the transmission gear (16) arranged at equal angles is fixedly connected to the outer end of the brush cleaning rotating rod (14).

5. The splash-proof pipeline pressure measuring mechanism capable of shutting off and clearing according to claim 4 is characterized in that: The dredging mechanism comprises a driving gear (17), which is rotatably arranged at the inner center position of the transmission pressure plate (15), and the driving gear (17) is fixedly connected to the outer end of the driving spiral rod (13), and the driving gear (17) is meshingly connected to the transmission gear (16) inside the transmission pressure plate (15).

6. The splash-proof pipeline pressure measuring mechanism capable of shutting off and clearing according to claim 5 is characterized in that: The dredging mechanism comprises a cleaning column (18), the outer side of the cleaning column (18) is fixedly connected to the inner end of the driving spiral rod (13), and the inner side of the cleaning column (18) is equiangularly slidably connected to the inner end of the cleaning arc plate (19), and the cleaning arc plate (19) and the cleaning column (18) arranged at the same angle are connected to each other through an elastic telescopic rod (20), and the outer end of the cleaning arc plate (19) arranged at the same angle slides through the outside of the cleaning column (18).

7. The splash-proof pipeline pressure measuring mechanism capable of shutting off and clearing according to claim 6 is characterized in that: The outer diameter of the cleaning column (18) included in the dredging mechanism is smaller than the inner diameter of the cut-off cylinder (7), and the cleaning column (18) and the cleaning arc plate (19) are accommodated in the interior of the cut-off cylinder (7) in an initial state, and the right end of the cleaning rotating rod (14) arranged at an equal angle inside the cut-off cylinder (7) is rotatably connected to a positioning ring body (21), and the positioning ring body (21) ensures the stability of the cleaning rotating rod (14) when it moves.

8. The splash-proof pipeline pressure measuring mechanism capable of shutting off and clearing according to claim 1 is characterized in that: The pressure measuring mechanism body (3) is provided with a transverse channel (8) and a vertical channel (9) inside. The transverse channel (8) connects the pressure measuring pipeline (2) with the pressure measuring mechanism body (3) and the cut-off mechanism at the left end, and the vertical channel (9) connects the pressure gauge (5) with the pressure measuring mechanism body (3) and the cut-off mechanism at the bottom end.

9. The splash-proof pipeline pressure measuring mechanism capable of shutting off and clearing according to claim 8, characterized in that: The horizontal hole (8) and the vertical hole (9) facilitate the cleaning rotating rod (14) and the cleaning column (18) included in the dredging mechanism to drive the external cleaning arc plate (19) to move and rotate, so as to dredge and clean the passages of the pressure measuring pipe (2) and the pressure gauge (5) connected through the dredging mechanism, and prevent the pressure measuring pipe (2) and the water conservancy pipe (1) from leaking when water is not stopped by the cut-off mechanism installed on the dredging mechanism.

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