Flow meter

Abstract

The utility model relates to the technical field of flow meters, and discloses a flow meter which comprises a first connecting pipe and a mounting pipe, one end of the first connecting pipe is fixedly connected with two fixing frames distributed in a mirror image mode, one ends of the two fixing frames are jointly and fixedly connected with a second connecting pipe, and the upper end of the first connecting pipe is fixedly connected with a flow meter body. A probe of the flowmeter body penetrates through the side wall of the first connecting pipe and extends into the first connecting pipe, and sealing grooves corresponding to the two rubber sealing gaskets are formed in the ends, close to the mounting pipe, of the first connecting pipe and the second connecting pipe correspondingly. According to the flow meter, the filter screen is fixedly connected to the interior of the mounting pipe, and the two extending edges are fixed to the surfaces of the two moving rings, so that the flow meter is easy to disassemble and assemble, less time is consumed, and the working efficiency can be improved as much as possible.

Description

Technical Field

[0001] The present application relates to the technical field of flow meters, and in particular to a flow meter. Background Art

[0002] A liquid flow meter is an instrument for measuring the flow of liquid. It is installed in a pipeline to record the flow of the liquid flowing through it. Specifically, it can measure various industrial water such as tap water and chlorine water. It is widely used in the field of pipeline transportation. Generally speaking, a liquid flow meter consists of a meter and a flow tube. The meter is set on the flow tube to measure the flow of liquid flowing through the flow tube. For liquids contaminated with impurities, a filter device will be installed on the liquid flow meter to prevent impurities from clogging the sensing part of the meter.

[0003] The existing patent (publication number: CN218211440U) discloses a turbine flowmeter with a filter, which relates to the technical field of turbine flowmeters, including a tube body and a magnetoelectric converter; the tube body: flanges are fixed at both ends, a placement groove is provided inside the flange, an impeller is rotatably connected inside the tube body, guide wheels are installed on the left and right sides of the impeller, the magnetoelectric converter is fixed to the top of the outer side of the tube body, a display screen is installed on the top of the magnetoelectric converter, a detection unit is provided on the front side of the tube body, and a filter assembly is provided inside the tube body; wherein: it also includes a controller, the controller is provided on the rear side of the display screen, the input end of the magnetoelectric converter is electrically connected to the output end of the controller, the output end of the magnetoelectric converter is electrically connected to the input end of the display screen, and the input end of the controller is electrically connected to the output end of an external power supply. The turbine flowmeter with a filter is convenient for detection, has strong practicality, and has a good filtering effect.

[0004] The filter assembly in a turbine flowmeter with a filter pointed out in the above patent is arranged inside the tube body, and the cutting wheel can only cut the impurities that leak out of the filter screen and cannot clean the filter screen holes. Therefore, the filter screen will still be blocked after long-term use and needs to be taken out for replacement or cleaning. However, because the filter assembly of the above device is installed inside the tube body, the tube body needs to be removed from the pipeline for cleaning, which makes the entire cleaning or replacement process more cumbersome and time-consuming, thereby making the cleaning work efficiency low. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides a flow meter with the advantages of easy cleaning or replacement, etc., and solves the problem that the filter component in the turbine flowmeter is arranged inside the tube body, and the cutting wheel can only cut the impurities that leak out of the filter screen and cannot clean the filter screen holes. Therefore, the filter screen will still be blocked after long-term use and needs to be taken out for replacement or cleaning. However, because the filter component of the above-mentioned device is installed inside the tube body, the tube body needs to be removed from the pipeline for cleaning, which makes the entire cleaning or replacement process cumbersome and time-consuming, thereby making the cleaning work inefficient.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a flow meter, comprising a first connecting tube and a mounting tube, wherein one end of the first connecting tube is fixedly connected to two mirror-distributed fixing frames, one end of the two fixing frames is commonly fixedly connected to a second connecting tube, the upper end of the first connecting tube is fixedly connected to a flow meter body, and a probe of the flow meter body passes through the side wall of the first connecting tube and extends into the interior of the first connecting tube.

[0007] A filter net is fixedly connected to the inside of the mounting tube, mounting grooves are provided at both ends of the mounting tube, moving rings are slidably connected to the inside of the two mounting grooves, rubber sealing pads are fixedly connected to the surfaces of the two moving rings, and sealing grooves corresponding to the two rubber sealing pads are provided at one end of the first connecting tube and the second connecting tube close to the mounting tube, respectively, the two rubber sealing pads extend into the sealing grooves and contact the inner walls of the sealing grooves, and two extended edges distributed in a mirror image are fixedly connected to the surfaces of the two moving rings.

[0008] Through the above scheme, a filter screen is fixedly connected inside the installation tube, and two extended edges are fixed on the surfaces of the two moving circles. When the filter screen needs to be replaced, the knob is turned. When the knob is turned, the threaded rod is driven to rotate, and then the threaded rod is driven to move so that the part of the threaded rod leaking out of the installation block becomes longer, thereby driving the wedge block to move until the lower end of the wedge block is higher than the moving block. At this time, after the nut is unscrewed, the two extended edges on the same side are pinched to move the two extended edges toward each other, and then the rubber sealing pad is driven to move until the rubber sealing pad moves out of the sealing groove. After that, the extension edge can be lifted up to remove the installation tube to replace or clean the filter screen. The disassembly and assembly process is relatively simple, less time is spent, and work efficiency can be maximized.

[0009] Furthermore, the two fixing frames are fixedly connected with mounting blocks, the two mounting blocks are provided with sliding grooves, the lower ends of the two sliding grooves are slidably connected with two moving blocks that are mirror-distributed and correspond to the extended edges, and the ends of the two moving blocks close to the extended edges penetrate the side walls of the mounting blocks and respectively abut against the corresponding surfaces of the extended edges.

[0010] Through the above solution, when in use, the two moving blocks will contact the surface of the extended edge when moving in opposite directions, and then drive the extended edge to move, thereby driving the moving circle to move.

[0011] Furthermore, a wedge block is slidably connected inside the sliding groove, and the surface of the wedge block is respectively in contact with the surfaces of the two moving blocks.

[0012] With the above solution, the wedge-shaped block moves downward when in use. Since the lower ends of both sides of the wedge-shaped block are inclined surfaces, the movement of the wedge-shaped block will drive the moving block to move in the opposite direction.

[0013] Furthermore, a threaded rod is threadedly connected inside the mounting block, the lower end of the threaded rod is rotatably connected to the upper end of the wedge block, and the upper end of the threaded rod extends out of the mounting block and is fixedly connected to a knob.

[0014] With the above solution, turning the knob will drive the threaded rod to rotate synchronously with the knob. Since the threaded rod is threadedly connected to the mounting block, the threaded rod will move up and down inside the mounting block when it rotates.

[0015] Furthermore, one end of the first connecting tube close to the mounting tube is fixedly connected to two third connecting plates distributed in a circular array, and one end of the second connecting tube close to the mounting tube is fixedly connected to two second connecting plates distributed in a circular array.

[0016] Through the above solution, the second connecting plate and the third connecting plate are used to connect the first connecting pipe, the second connecting pipe and the mounting pipe.

[0017] Furthermore, two first connecting plates distributed in a circular array and corresponding to the second connecting plates and the third connecting plates are fixedly connected at both ends of the mounting tube, and the four first connecting plates are connected to the corresponding two second connecting plates and the third connecting plates by bolts and nuts respectively.

[0018] Through the above solution, each first connecting plate is connected to a second connecting plate and a third connecting plate in a detachable manner through bolts and nuts.

[0019] Furthermore, one end of the first connecting pipe away from the mounting pipe is fixedly connected to a first connecting flange, and one end of the second connecting pipe away from the mounting pipe is fixedly connected to a second connecting flange.

[0020] Through the above solution, the first connecting flange and the second connecting flange are a common pipeline connection method, which allows the pipelines to be easily connected and disconnected while maintaining the sealing of the connection.

[0021] Furthermore, the lower ends of the two fixing frames are fixedly connected with a positioning groove body, and the surface of the mounting tube is fixedly connected with two positioning blocks distributed in a mirror image, and the two positioning blocks extend into the positioning groove body and are slidably connected with the inner wall of the positioning groove body.

[0022] Through the above solution, the sliding connection between the positioning block and the positioning slot body realizes the precise positioning between the mounting tube and the fixing frame.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] The flow meter has a filter screen fixedly connected inside a mounting tube, and two extended edges are fixed on the surfaces of two moving circles. When the filter screen needs to be replaced, the knob is turned, and the threaded rod is driven to rotate when the knob is turned, and then the threaded rod is driven to move so that the portion of the threaded rod that leaks out of the mounting block becomes longer, thereby driving the wedge block to move until the lower end of the wedge block is higher than the moving block. At this time, after the nut is unscrewed, the two extended edges on the same side are pinched to move toward each other, and then the rubber sealing pad is driven to move until the rubber sealing pad moves out of the sealing groove. After that, the mounting tube can be removed by lifting the extended edge upwards to replace or clean the filter screen. The disassembly and assembly process is relatively simple, less time is spent, and work efficiency can be maximized. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of this application;

[0026] Figure 2 This is a schematic diagram of the installation block installation structure for this application;

[0027] Figure 3 This is a partial cross-sectional view of the threaded rod installation structure of this application;

[0028] Figure 4 This is a cross-sectional view of the filter installation structure for this application;

[0029] Figure 5 for Figure 4 A magnified view of the structure at center;

[0030] Figure 6 for Figure 3 Enlarged view of the structure at point B in the middle.

[0031] In the figure:

[0032] 1. First connecting pipe; 2. Fixing frame; 3. Second connecting pipe; 4. First connecting flange; 5. Second connecting flange; 6. Mounting pipe; 7. First connecting plate; 8. Second connecting plate; 9. Third connecting plate; 10. Flow meter body; 11. Positioning block; 12. Positioning slot; 13. Mounting block; 14. Threaded rod; 15. Knob; 16. Sliding slot; 17. Wedge block; 18. Moving block; 19. Mounting slot; 20. Moving ring; 21. Rubber sealing pad; 22. Sealing slot; 23. Filter screen; 24. Extended edge. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] See also Figure 1 , Figure 4 and Figure 6 A flow meter in this embodiment includes a first connecting pipe 1 and a mounting pipe 6, wherein one end of the first connecting pipe 1 is fixedly connected to two fixing frames 2 that are distributed in a mirror image, and one end of the two fixing frames 2 is commonly fixedly connected to a second connecting pipe 3, and the upper end of the first connecting pipe 1 is fixedly connected to a flow meter body 10, and a probe of the flow meter body 10 penetrates the side wall of the first connecting pipe 1 and extends into the first connecting pipe 1, and a filter screen 23 is fixedly connected to the inside of the mounting pipe 6, and mounting grooves 19 are provided inside both ends of the mounting pipe 6, and moving rings 20 are slidably connected inside the two mounting grooves 19, and rubber sealing pads 21 are fixedly connected to the surfaces of the two moving rings 20, and the first connecting pipe 1 and the second connecting pipe 3 are provided with sealing grooves 22 corresponding to the two rubber sealing pads 21 respectively at one end close to the mounting pipe 6, and the two rubber sealing pads 21 extend into the sealing groove 22 and contact the inner wall of the sealing groove 22, and the surfaces of the two moving rings 20 are fixedly connected with two extended edges 24 that are distributed in a mirror image.

[0035] See also Figure 2 , Figure 3 and Figure 5, the two fixing frames 2 are fixedly connected with mounting blocks 13 inside, the two mounting blocks 13 are provided with sliding grooves 16 inside, the lower ends of the two sliding grooves 16 are slidably connected with two moving blocks 18 which are mirror-distributed and correspond to the extension edges 24, the ends of the two moving blocks 18 close to the extension edges 24 penetrate the side walls of the mounting blocks 13 and respectively abut against the surfaces of the corresponding extension edges 24, when the two moving blocks 18 move in opposite directions during use, they will contact the surfaces of the extension edges 24, and then drive the extension edges 24 to move, thereby driving the moving ring 20 to move, the sliding grooves 16 are slidably connected with wedge blocks 17, the wedge blocks 1 7 surfaces are respectively in contact with the surfaces of the two moving blocks 18. When in use, the wedge block 17 moves downward. Because the lower ends of both sides of the wedge block 17 are inclined surfaces, when the wedge block 17 moves, it will drive the moving block 18 to move in the opposite direction. The mounting block 13 is internally threadedly connected with a threaded rod 14. The lower end of the threaded rod 14 is rotatably connected to the upper end of the wedge block 17. The upper end of the threaded rod 14 extends out of the mounting block 13 and is fixedly connected with a knob 15. Rotating the knob 15 will drive the threaded rod 14 to rotate synchronously with the knob 15. Because the threaded rod 14 is threadedly connected to the mounting block 13, the threaded rod 14 will move up and down inside the mounting block 13 when it rotates.

[0036] See also Figure 1 One end of the first connecting tube 1 close to the mounting tube 6 is fixedly connected to two third connecting plates 9 distributed in a circular array, and one end of the second connecting tube 3 close to the mounting tube 6 is fixedly connected to two second connecting plates 8 distributed in a circular array. The second connecting plate 8 and the third connecting plate 9 are used to connect the first connecting tube 1, the second connecting tube 3 and the mounting tube 6. Both ends of the mounting tube 6 are fixedly connected to two first connecting plates 7 distributed in a circular array and corresponding to the second connecting plates 8 and the third connecting plates 9 respectively. The four first connecting plates 7 are connected to the corresponding two second connecting plates 8 and the third connecting plates 9 respectively by bolts and nuts. Each first connecting plate 7 is connected to a second connecting plate 8 and a third connecting plate 9, and is connected in a detachable manner such as bolts and nuts.

[0037] See also Figure 1 and Figure 2The end of the first connecting pipe 1 away from the mounting pipe 6 is fixedly connected with the first connecting flange 4, and the end of the second connecting pipe 3 away from the mounting pipe 6 is fixedly connected with the second connecting flange 5. The first connecting flange 4 and the second connecting flange 5 are a common pipe connection method, which allows the pipes to be easily connected and disconnected while maintaining the sealing of the connection. The lower ends of the two fixing frames 2 are fixedly connected with a positioning groove 12, and two mirror-distributed positioning blocks 11 are fixedly connected to the surface of the mounting pipe 6. The two positioning blocks 11 extend into the positioning groove 12 and are slidably connected to the inner wall of the positioning groove 12. The sliding connection between the positioning blocks 11 and the positioning groove 12 realizes the precise positioning between the mounting pipe 6 and the fixing frame 2.

[0038] In this embodiment, a filter screen 23 is fixedly connected inside the mounting tube 6, and two extension edges 24 are fixed on the surfaces of the two moving circles 20. When the filter screen 23 needs to be replaced, the knob 15 is turned. When the knob 15 is turned, the threaded rod 14 is driven to rotate, and then the threaded rod 14 is driven to move so that the portion of the threaded rod 14 that leaks out of the mounting block 13 becomes longer, thereby driving the wedge block 17 to move until the lower end of the wedge block 17 is higher than the moving block 18. At this time, after the nut is unscrewed, the two extension edges 24 on the same side are pinched to move the two extension edges 24 toward each other, and then the rubber sealing pad 21 is driven to move until the rubber sealing pad 21 moves out of the sealing groove 22. After that, the extension edge 24 can be lifted up to remove the mounting tube 6 to replace or clean the filter screen 23. The disassembly and assembly process is relatively simple, less time is consumed, and work efficiency can be maximized.

[0039] The working principle of the above embodiment is:

[0040] First, loosen and remove the nut that fixes the mounting tube 6, and turn the knob 15 to release the locking relationship between the mounting tube 6 and the fixing frame 2. Turning the knob 15 will drive the threaded rod 14 to rotate, and then drive the wedge block 17 to move. Then you need to continue to turn the knob 15 until the lower end of the wedge block 17 is higher than the moving block 18, so that the moving block 18 is no longer restricted by the wedge block 17. Then pinch the two extended edges 24 on the same side and move them toward each other to remove the rubber sealing gasket 21 from the sealing groove 22 and then lift the mounting tube 6. Since the rubber sealing gasket 21 has been removed from the sealing groove 22, the mounting tube 6 should now be able to move freely. Gently lift the mounting tube 6 until it is completely removed from the fixing frame 2. You can check whether the internal filter screen 23 needs to be replaced or cleaned.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flow meter, comprising a first connecting pipe (1) and a mounting pipe (6), characterized in that: One end of the first connecting tube (1) is fixedly connected to two fixing frames (2) distributed in a mirror image, one end of the two fixing frames (2) is commonly fixedly connected to a second connecting tube (3), the upper end of the first connecting tube (1) is fixedly connected to a flow meter body (10), and a probe of the flow meter body (10) penetrates the side wall of the first connecting tube (1) and extends into the interior of the first connecting tube (1); A filter screen (23) is fixedly connected inside the mounting tube (6), mounting grooves (19) are provided inside both ends of the mounting tube (6), moving rings (20) are slidably connected inside the two mounting grooves (19), and rubber sealing pads (21) are fixedly connected to the surfaces of the two moving rings (20), and sealing grooves (22) corresponding to the two rubber sealing pads (21) are provided at one end of the first connecting tube (1) and the second connecting tube (3) close to the mounting tube (6), and the two rubber sealing pads (21) extend into the sealing grooves (22) and contact the inner wall of the sealing grooves (22), and the surfaces of the two moving rings (20) are fixedly connected to two extended edges (24) distributed in a mirror image.

2. A flow meter according to claim 1, characterized in that: The two fixing frames (2) are both fixedly connected with a mounting block (13) inside, and the two mounting blocks (13) are both provided with a sliding groove (16) inside. The lower ends of the two sliding grooves (16) are both slidably connected with two moving blocks (18) distributed in a mirror image and corresponding to the extended edges (24), and the ends of the two moving blocks (18) close to the extended edges (24) penetrate the side walls of the mounting blocks (13) and respectively abut against the surfaces of the corresponding extended edges (24).

3. A flow meter according to claim 2, characterized in that: A wedge block (17) is slidably connected inside the sliding groove (16), and the surface of the wedge block (17) is respectively in contact with the surfaces of the two moving blocks (18).

4. A flow meter according to claim 3, characterized in that: The mounting block (13) is internally threadedly connected to a threaded rod (14); the lower end of the threaded rod (14) is rotatably connected to the upper end of the wedge block (17); the upper end of the threaded rod (14) extends out of the mounting block (13) and is fixedly connected to a knob (15).

5. A flow meter according to claim 1, characterized in that: One end of the first connecting tube (1) close to the mounting tube (6) is fixedly connected to two third connecting plates (9) distributed in a circumferential array, and one end of the second connecting tube (3) close to the mounting tube (6) is fixedly connected to two second connecting plates (8) distributed in a circumferential array.

6. A flow meter according to claim 5, characterized in that: Two first connecting plates (7) distributed in a circumferential array and corresponding to the second connecting plates (8) and the third connecting plates (9) are fixedly connected to both ends of the mounting tube (6), and the four first connecting plates (7) are connected to the corresponding two second connecting plates (8) and the third connecting plates (9) by bolts and nuts.

7. A flow meter according to claim 1, characterized in that: One end of the first connecting pipe (1) away from the mounting pipe (6) is fixedly connected to a first connecting flange (4), and one end of the second connecting pipe (3) away from the mounting pipe (6) is fixedly connected to a second connecting flange (5).

8. A flow meter according to claim 1, characterized in that: The lower ends of the two fixing frames (2) are fixedly connected to a positioning groove (12), and the surface of the mounting tube (6) is fixedly connected to two positioning blocks (11) distributed in a mirror image, and the two positioning blocks (11) extend into the interior of the positioning groove (12) and are slidably connected to the inner wall of the positioning groove (12).

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