Flowmeter unblocking mechanism

Abstract

The invention relates to the field of flow meters, in particular to a flow meter unblocking mechanism which comprises a pipe body, a detachable connecting pipe is installed at one end of the pipe body, a pipe joint is arranged on the side, away from the pipe body, of the connecting pipe, a detachable supporting ring is installed between the pipe joint and the connecting pipe, and a filter screen is installed in the supporting ring. The end, away from the supporting ring, of the pipe joint is sleeved with a second end disc fixedly connected with the pipe joint, the face, away from the pipe joint, of the second end disc is fixedly connected with a sleeve, and the end, away from the second end disc, of the sleeve is provided with a first end disc. Two sets of adjusting pieces used for adjusting the positions of the arc-shaped blocks in the cylinder sleeve are installed on the outer surface of the cylinder sleeve, a plurality of semicircular grooves are formed in the opposite faces of the two arc-shaped blocks, and a plurality of thin holes are evenly formed in the faces, facing the filter screen, of the arc-shaped blocks. The filter screen does not need to be repeatedly disassembled.

Description

Technical Field

[0001] The invention relates to a flow meter blockage clearing mechanism, belonging to the field of flow meters. Background Art

[0002] A flow meter is an instrument used to measure the total amount of fluid flowing through a pipe over a specific period of time. When using a flow meter, fluid enters the meter through an inlet pipe for measurement. To prevent impurities from entering the flow meter and causing blockage, a filter is typically installed in the inlet pipe to filter and absorb impurities from the fluid. These filters need to be removed and cleaned regularly to ensure proper functioning of the flow meter. This method requires constant disassembly and installation of the filter, which is time-consuming and labor-intensive. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention aims to provide a flow meter blockage clearing mechanism to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a flow meter clearing mechanism, comprising a tube body, a flow meter head is installed on the outer surface of the tube body, a detachable connecting pipe is installed at one end of the tube body, a pipe joint is provided on the side of the connecting pipe away from the tube body, a detachable support ring is installed between the pipe joint and the connecting pipe, a filter is installed in the support ring, an end of the pipe joint away from the support ring is provided with a second end disk connected and fixed to the pipe joint, a side of the second end disk away from the pipe joint is connected and fixed with a cylinder sleeve, and an end of the cylinder sleeve away from the second end disk is provided There is a first end plate, and a water inlet pipe is installed at the middle position of the side of the first end plate facing away from the cylinder sleeve. Two arc blocks forming a cylindrical structure are provided in the cylinder sleeve, and two groups of adjustment parts for adjusting the position of the arc blocks in the cylinder sleeve are installed on the outer surface of the cylinder sleeve. The opposite surfaces of the two arc blocks are provided with multiple semicircular grooves, and the side of the arc block facing the filter is evenly provided with multiple fine holes. The fine holes and semicircular grooves are arranged along the length direction of the cylinder sleeve. The diameter of the cylindrical structure formed by the two arc blocks is larger than the inner diameter of the pipe joint, and the two ends of the arc block are respectively fitted with the first end plate and the second end plate.

[0005] Specifically, the adjusting part includes an adjusting rod, and two guide holes are symmetrically provided on the outer surface of the cylinder sleeve, and an adjusting rod is inserted in each of the two guide holes. One end of the two adjusting rods in the cylinder sleeve is respectively connected and fixed with two arc blocks, and a positioning sleeve is provided on the outside of the guide hole, and one end of the positioning sleeve is connected and fixed with the cylinder sleeve. The adjusting rod passes through the positioning sleeve, and a sealing sleeve is pasted in the positioning sleeve. The sealing sleeve is wrapped around the adjusting rod, and a side surface of the positioning sleeve is threadedly connected with a positioning screw for limiting the relative position of the adjusting rod and the positioning sleeve.

[0006] Specifically, one end of the adjusting rod outside the sleeve is connected and fixed with a handle, the handle and the adjusting rod are arranged perpendicular to each other, the side of the adjusting rod facing the handle is recessed to form an arc-shaped groove, the handle is fixed in the arc-shaped groove, and both ends of the handle are connected and fixed with a spherical head.

[0007] Specifically, the cross section of the adjusting rod is rectangular, the cross section of the guide hole is rectangular, and the cross section of the positioning sleeve is rectangular.

[0008] Specifically, two limiting strips are provided on the side of the positioning sleeve facing away from the cylinder sleeve, and the limiting strips are connected and fixed to the adjusting rod.

[0009] Specifically, a through hole is opened on one side of the positioning sleeve, a threaded sleeve is provided on the outside of the through hole and is arranged concentrically with the through hole, one end of the threaded sleeve is connected and fixed to the positioning sleeve, and the positioning screw is threadedly connected in the threaded sleeve.

[0010] Specifically, the end of the pipe joint away from the pipe body is connected and fixed with a first flange, and the end of the pipe joint away from the second end plate is connected and fixed with a second flange. The support ring is arranged between the first flange and the second flange, and a first sealing ring is provided between the first flange and the support ring, and a second sealing ring is provided between the second flange and the support ring. The support ring, the first flange and the second flange are connected by fasteners formed by multiple sets of screws and nuts, and one end of the screw passes through the first flange, the first sealing ring, the support ring, the second sealing ring and the second flange in sequence.

[0011] Specifically, a plug sleeve is connected and fixed to the middle of the side of the support ring facing the connecting pipe. The plug sleeve is inserted into the connecting pipe. A plurality of blades are equidistantly installed in a ring shape in the plug sleeve on the side away from the filter screen.

[0012] Specifically, the end of the tube body away from the connecting pipe is connected and fixed with a first butt joint tube, the end of the tube body away from the first butt joint tube is installed with a second butt joint tube, one end of the connecting pipe is threadedly connected to the second butt joint tube, and the end of the water inlet pipe away from the first end plate is installed with a third butt joint tube.

[0013] Beneficial effects of the present invention: 1. Install a support ring with a filter screen between the pipe joint and the connecting pipe. When the fluid flows into the pipe body through the filter screen, the filter screen filters the fluid to prevent large debris from adhering to the inner wall of the pipe body and causing blockage.

[0014] 2. Adjust the position of the adjusting rod along the positioning sleeve so that the two arc blocks fit together to form a cylindrical structure. At this time, the two arc blocks jointly seal the pipe joint. The semicircular grooves on the two arc blocks form a channel for the fluid to flow through. When the fluid pressure remains unchanged, the channel formed by the pores and the semicircular grooves is smaller than the inner diameter of the pipe joint. Therefore, the flow rate of the fluid flowing into the pipe joint increases. The fluid with increased flow rate impacts the filter screen, so that the smaller debris attached to the filter screen passes through the filter screen under the impact of the fluid with increased flow rate. After cleaning, separate the two arc blocks to realize cleaning of the filter screen by increasing the fluid flow rate. There is no need to repeatedly disassemble and assemble the filter screen, which improves the convenience of cleaning the filter screen. Moreover, it does not affect the circulation of the fluid when cleaning the filter screen, thereby achieving the purpose of online clearing.

[0015] 3. Make the cross-sections of the adjusting rod, the positioning sleeve and the guide hole all rectangular to prevent the arc block from rotating freely in the sleeve. Install two limit strips on the adjusting rod so that the limit strips come into contact with the positioning sleeve to limit the movement range of the arc block, making it easier to fit the two arc blocks together and seal the pipe joint. Tighten the positioning screw to limit the relative position of the adjusting rod and the positioning sleeve, thereby achieving the purpose of limiting the position of the arc block.

[0016] 4. Insert the plug-in sleeve into the connecting pipe. Under the impact of the fluid with increased flow rate, the debris on the filter screen will pass through the filter screen and come into contact with the blades in the plug-in sleeve. Driven by the fluid, the debris will pass through multiple blades, which will cut the debris and further reduce its volume, thereby reducing the probability of the debris adhering to the inner wall of the pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings: Figure 1 This is a structural diagram of a flow meter blockage clearing mechanism of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the assembly of a filter screen and a support ring in a flow meter clearing mechanism of the present invention; Figure 4 This is a schematic diagram of the assembly of a blade, a plug sleeve and a support ring in a flow meter clearing mechanism of the present invention; Figure 5 It is a partial cross-sectional assembly diagram of the arc block, the adjusting rod, the positioning sleeve and the cylinder sleeve in a flow meter clearing mechanism of the present invention; Figure 6 This is a schematic diagram of the assembly of an arc block, an adjusting rod, a positioning sleeve and a cylinder sleeve in a flow meter clearing mechanism of the present invention; Figure 7 This is a schematic diagram of the assembly of a positioning sleeve and a cylinder sleeve in a flow meter clearing mechanism of the present invention; In the figure: 1, pipe body, 2, first butt joint, 3, flow meter head, 4, second butt joint, 5, connecting pipe, 6, sleeve, 7, water inlet pipe, 8, third butt joint, 9, first flange, 10, first sealing ring, 11, support ring, 12, second sealing ring, 13, second flange, 14, positioning screw, 15, first end plate, 16, threaded sleeve, 17, positioning sleeve, 18, limit strip, 19, adjusting rod, 20, handle, 21, second end plate, 22, nut, 23, screw, 24, pipe joint, 25, filter screen, 26, plug sleeve, 27, blade, 28, arc block, 29, fine hole, 30, semicircular groove, 31, sealing sleeve, 32, guide hole, 33, through hole. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figure 1 The present invention provides a technical solution: a flow meter blockage clearing mechanism, comprising a tube body 1, a flow meter head 3 installed on the outer surface of the tube body 1, a detachable connecting pipe 5 installed at one end of the tube body 1, wherein the end of the tube body 1 away from the connecting pipe 5 is connected and fixed with a first docking pipe 2, and the end of the tube body 1 away from the first docking pipe 2 is installed with a second docking pipe 4, so that one end of the connecting pipe 5 is threadedly connected to the second docking pipe 4, completing the assembly of the connecting pipe 5 and the tube body 1.

[0020] See Figure 1-Figure 3A pipe joint 24 is provided on the side of the connecting pipe 5 away from the pipe body 1. A detachable support ring 11 is installed between the pipe joint 24 and the connecting pipe 5. A filter screen 25 is installed in the support ring 11. The end of the pipe joint 24 away from the pipe body 1 is connected and fixed with a first flange 9, and the end of the pipe joint 24 away from the second end plate 21 is connected and fixed with a second flange 13. The support ring 11 is arranged between the first flange 9 and the second flange 13. A first sealing ring 10 is provided between the first flange 9 and the support ring 11, and a second sealing ring 12 is provided between the second flange 13 and the support ring 11. The support ring 11 and the first flange 9 The second flange 13 is connected to the first flange 9 by a fastener formed by multiple sets of screws 23 and nuts 22. One end of the screw 23 passes through the first flange 9, the first sealing ring 10, the support ring 11, the second sealing ring 12 and the second flange 13 in sequence. The screw 23 cooperates with the nut 22 to complete the installation of the support ring 11 between the pipe joint 24 and the connecting pipe 5. The support ring 11 with a filter screen 25 is installed between the pipe joint 24 and the connecting pipe 5. When the fluid flows into the pipe body 1 through the filter screen 25, the filter screen 25 filters the fluid to prevent larger debris from adhering to the inner wall of the pipe body 1 and causing blockage.

[0021] See Figure 1-Figure 7, the end of the pipe joint 24 away from the support ring 11 is provided with a second end plate 21 connected and fixed to the pipe joint 24, the second end plate 21 is connected and fixed to the side of the pipe joint 24, the end of the sleeve 6 away from the second end plate 21 is installed with the first end plate 15, the first end plate 15 is installed at the middle position of the side away from the sleeve 6, the water inlet pipe 7 is installed at the end of the water inlet pipe 7 away from the first end plate 15, and the third butt joint 8 is installed in the sleeve 6. Two arc blocks 28 forming a cylindrical structure are provided in the sleeve 6. The opposite surfaces of the two arc blocks 28 are provided with a plurality of semicircular grooves 30. The arc blocks 28 face the filter screen. A plurality of fine holes 29 are evenly opened on one side of 25. The fine holes 29 and the semicircular grooves 30 are arranged along the length direction of the sleeve 6. The diameter of the cylindrical structure formed by the two arc blocks 28 is larger than the inner diameter of the pipe joint 24. The two ends of the arc block 28 are respectively fitted with the first end plate 15 and the second end plate 21. The outer surface of the sleeve 6 is symmetrically provided with two guide holes 32. The two guide holes 32 are both inserted with adjustment rods 19. One end of the two adjustment rods 19 in the sleeve 6 is respectively connected and fixed with the two arc blocks 28. A positioning sleeve 17 is provided on the outside of the guide hole 32. One end of the positioning sleeve 17 is fitted with the sleeve 6. The connection is fixed, the adjusting rod 19 passes through the positioning sleeve 17, and a sealing sleeve 31 is pasted inside the positioning sleeve 17. The sealing sleeve 31 is wrapped around the adjusting rod 19. A side of the positioning sleeve 17 is threadedly connected with a positioning screw 2314 for limiting the relative position of the adjusting rod 19 and the positioning sleeve 17. The position of the adjusting rod 19 is adjusted along the positioning sleeve 17 so that the two arc blocks 28 fit together to form a cylindrical structure. At this time, the two arc blocks 28 jointly realize the sealing of the pipe joint 24. The semicircular grooves 30 on the two arc blocks 28 form a channel for fluid flow. When the fluid pressure remains unchanged, due to the pores The channel formed by 29 and the semicircular groove 30 is smaller than the inner diameter of the pipe joint 24, so the flow rate of the fluid flowing into the pipe joint 24 is increased. The fluid with increased flow rate impacts the filter screen 25, so that the smaller debris attached to the filter screen 25 passes through the filter screen 25 under the impact of the fluid with increased flow rate. After cleaning, the two arc-shaped blocks 28 can be separated to achieve cleaning of the filter screen 25 by increasing the fluid flow rate. There is no need to repeatedly disassemble and assemble the filter screen 25, which improves the convenience of cleaning the filter screen 25. Moreover, the flow of the fluid is not affected when cleaning the filter screen 25, thereby achieving the purpose of online blockage removal.

[0022] See Figure 1 、 Figure 2 、 Figure 6 and Figure 7, the adjusting rod 19 is connected to and fixed with a handle 20 at one end outside the tube sleeve 6, the handle 20 and the adjusting rod 19 are arranged perpendicular to each other, and the side of the adjusting rod 19 facing the handle 20 is recessed to form an arc groove, so that the handle 20 is fixed in the arc groove, increasing the area of ​​connection between the handle 20 and the adjusting rod 19, and both ends of the handle 20 are connected and fixed with a round ball head, the adjusting rod 19 has a rectangular cross section, the guide hole 32 has a rectangular cross section, the positioning sleeve 17 has a rectangular cross section, and the positioning sleeve 17 is provided with two limit strips 18 on the side away from the tube sleeve 6, and the limit strip 18 and the adjusting rod 19 is connected and fixed so that the cross sections of the adjusting rod 19, the positioning sleeve 17 and the guide hole 32 are all rectangular, thereby preventing the arc block 28 from rotating arbitrarily in the cylinder sleeve 6. Two limit bars 18 are installed on the adjusting rod 19. After the limit bars 18 come into contact with the positioning sleeve 17, the movement range of the arc block 28 is limited, which makes it easy to seal the pipe joint 24 after the two arc blocks 28 fit together. After tightening the positioning screw 2314, it is easy to limit the relative position of the adjusting rod 19 and the positioning sleeve 17, that is, to achieve the purpose of limiting the position of the arc block 28.

[0023] See Figure 1 、 Figure 2 、 Figure 6 and Figure 7 A through hole 33 is provided on one side of the positioning sleeve 17, and a threaded sleeve 16 is provided on the outside of the through hole 33 and arranged concentrically with the through hole 33. One end of the threaded sleeve 16 is connected and fixed to the positioning sleeve 17, so that the positioning screw 2314 is threadedly connected in the threaded sleeve 16, completing the threaded connection between the positioning screw 2314 and the positioning sleeve 17.

[0024] See Figure 4 A plug-in sleeve 26 is connected and fixed to the middle position of the side of the support ring 11 facing the connecting pipe 5. The plug-in sleeve 26 is inserted into the connecting pipe 5. A plurality of blades 27 are equidistantly installed in a ring shape on the side of the plug-in sleeve 26 away from the filter screen 25. When the plug-in sleeve 26 is inserted into the connecting pipe 5, the debris on the filter screen 25 passes through the filter screen 25 under the impact of the fluid with increased flow rate. The debris will come into contact with the blades 27 in the plug-in sleeve 26, and the debris will pass through the plurality of blades 27 under the drive of the fluid. The blades 27 cut the debris, further reducing the volume of the debris and reducing the probability of the debris adhering to the inner wall of the pipe body 1.

[0025] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A flow meter blockage clearing mechanism, comprising a pipe body (1), characterized in that: A flow meter head (3) is mounted on the outer surface of the pipe body (1); a detachable connecting pipe (5) is mounted on one end of the pipe body (1); a pipe joint (24) is mounted on a side of the connecting pipe (5) away from the pipe body (1); a detachable supporting ring (11) is mounted between the pipe joint (24) and the connecting pipe (5); a filter screen (25) is mounted in the supporting ring (11); an end of the pipe joint (24) away from the supporting ring (11) is sleeved with a second end plate (21) connected and fixed to the pipe joint (24); a side of the second end plate (21) away from the pipe joint (24) is connected and fixed with a sleeve (6); an end of the sleeve (6) away from the second end plate (21) is mounted with a first end plate (15); the first end plate (15) away from the sleeve A water inlet pipe (7) is installed at the middle position of one side of the sleeve (6); two arc blocks (28) forming a cylindrical structure are arranged inside the sleeve (6); two groups of adjusting members for adjusting the position of the arc blocks (28) in the sleeve (6) are installed on the outer surface of the sleeve (6); a plurality of semicircular grooves (30) are provided on the opposite surfaces of the two arc blocks (28); a plurality of fine holes (29) are evenly provided on the side of the arc block (28) facing the filter screen (25); the fine holes (29) and the semicircular grooves (30) are arranged along the length direction of the sleeve (6); the diameter of the cylindrical structure formed by the two arc blocks (28) is larger than the inner diameter of the pipe joint (24); and the two ends of the arc block (28) are respectively fitted with the first end plate (15) and the second end plate (21).

2. A flow meter blockage clearing mechanism according to claim 1, characterized in that: The adjusting member comprises an adjusting rod (19), two guide holes (32) are symmetrically formed on the outer surface of the sleeve (6), and the adjusting rods (19) are inserted into the two guide holes (32). One end of the two adjusting rods (19) in the sleeve (6) is respectively connected and fixed to two arc blocks (28). A positioning sleeve (17) is provided outside the guide hole (32), and one end of the positioning sleeve (17) is connected and fixed to the sleeve (6). The adjusting rod (19) passes through the positioning sleeve (17), and a sealing sleeve (31) is pasted inside the positioning sleeve (17). The sealing sleeve (31) is wrapped around the adjusting rod (19). A positioning screw (23) (14) for limiting the relative position of the adjusting rod (19) and the positioning sleeve (17) is threadedly connected to one side of the positioning sleeve (17).

3. A flow meter blockage clearing mechanism according to claim 2, characterized in that: One end of the adjusting rod (19) located outside the sleeve (6) is connected and fixed with a handle (20), the handle (20) and the adjusting rod (19) are arranged perpendicular to each other, a side of the adjusting rod (19) facing the handle (20) is recessed to form an arc groove, the handle (20) is fixed in the arc groove, and both ends of the handle (20) are connected and fixed with round ball heads.

4. A flow meter blockage clearing mechanism according to claim 2, characterized in that: The cross section of the adjusting rod (19) is rectangular, the cross section of the guide hole (32) is rectangular, and the cross section of the positioning sleeve (17) is rectangular.

5. A flow meter blockage clearing mechanism according to claim 2, characterized in that: Two limit strips (18) are provided on the side of the positioning sleeve (17) facing away from the cylinder sleeve (6), and the limit strips (18) are connected and fixed to the adjustment rod (19).

6. A flow meter blockage clearing mechanism according to claim 2, characterized in that: A through hole (33) is formed on one side of the positioning sleeve (17), a threaded sleeve (16) is provided on the outside of the through hole (33) and is arranged concentrically with the through hole (33), one end of the threaded sleeve (16) is connected and fixed to the positioning sleeve (17), and the positioning screw (23) (14) is threadedly connected in the threaded sleeve (16).

7. A flow meter blockage clearing mechanism according to claim 1, characterized in that: The end of the pipe joint (24) away from the pipe body (1) is connected and fixed with a first flange (9), and the end of the pipe joint (24) away from the second end plate (21) is connected and fixed with a second flange (13); the support ring (11) is arranged between the first flange (9) and the second flange (13); a first sealing ring (10) is arranged between the first flange (9) and the support ring (11); a second sealing ring (12) is arranged between the second flange (13) and the support ring (11); the support ring (11), the first flange (9) and the second flange (13) are connected by a fastener formed by a plurality of sets of screws (23) and nuts (22); one end of the screw (23) passes through the first flange (9), the first sealing ring (10), the support ring (11), the second sealing ring (12) and the second flange (13) in sequence.

8. A flow meter blockage clearing mechanism according to claim 1, characterized in that: A plug sleeve (26) is connected and fixed to the middle of a side of the support ring (11) facing the connecting pipe (5); the plug sleeve (26) is inserted in the connecting pipe (5); and a plurality of blades (27) are equidistantly mounted in a ring shape on a side of the plug sleeve (26) away from the filter screen (25).

9. A flow meter blockage clearing mechanism according to claim 1, characterized in that: The end of the pipe body (1) away from the connecting pipe (5) is connected and fixed with a first butt joint pipe (2); the end of the pipe body (1) away from the first butt joint pipe (2) is installed with a second butt joint pipe (4); one end of the connecting pipe (5) is threadedly connected in the second butt joint pipe (4); and the end of the water inlet pipe (7) away from the first end plate (15) is installed with a third butt joint pipe (8).

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