Flowmeter capable of being rapidly disassembled, assembled and maintained

Abstract

The invention discloses a flow meter capable of being rapidly disassembled, assembled and maintained, and relates to the technical field of flow meters, the flow meter comprises a machine body and a connecting ring a, the interior of the machine body is movably connected with two sets of elliptical gears through a center shaft and a bearing, and the two sets of elliptical gears are meshed with each other. According to the flow meter capable of being rapidly disassembled, assembled and maintained, during disassembly and maintenance, the threaded sleeve is rotated to be in threaded transmission with the threaded pipe, so that the threaded sleeve moves upwards, when the threaded sleeve moves, the bottom of the threaded sleeve drives a connecting ring a to move upwards through a limiting ring a, after the threaded sleeve is separated from the threaded transmission with the threaded pipe, the threaded sleeve can be directly pulled to move upwards, and the upward moving speed is increased; the connecting ring a can drive multiple groups of wedge-shaped blocks to move through multiple groups of connecting rods at the bottom to be separated from wedge-shaped grooves in the fixing blocks, the wedge-shaped blocks are limited by sliding rods when moving, and after the wedge-shaped blocks are completely separated from the interiors of the fixing blocks, the top cover can be moved upwards to be separated from the machine body, and the interior of the machine body is maintained.

Description

Technical Field

[0001] The invention relates to the technical field of flow meters, in particular to a flow meter capable of being quickly disassembled, assembled and maintained. Background Art

[0002] The oval gear flowmeter, also known as the displacement flowmeter, is a type of volumetric flowmeter and has a higher accuracy among flowmeters. It uses mechanical measuring elements to continuously divide the fluid into a single known volume portion, and measures the total flow volume according to the number of times the metering chamber is filled and discharged repeatedly. It is suitable for flow measurement in chemical, petroleum, pharmaceutical, electric power, metallurgy, food and other industrial sectors.

[0003] For example, an elliptical gear flowmeter with announcement number CN213543680U is provided with a sewage pipe at the bottom of the shell, and a rubber pad is provided between the sewage pipe and the shell. A transparent glass ball cover is provided at the bottom of the sewage pipe, and the glass ball cover is tempered glass. The solid particles accumulated in the shell can be observed through the transparent glass ball cover installed at the bottom. When there are many solid particles in the glass ball cover, the shell can be opened to clean the inside, thereby improving the service life of the elliptical gear.

[0004] When the flow meter in the above scheme is disassembled for maintenance, multiple sets of bolts connecting the flow meter and the top cover are turned by a screwdriver to disconnect them from the flow meter, and then the top cover of the flow meter is removed and the inside is maintained. This method of disassembling and maintaining the flow meter is relatively cumbersome and time-consuming, and it is difficult to quickly disassemble and maintain the flow meter. Summary of the invention

[0005] The object of the present invention is to provide a flow meter that can be quickly disassembled and maintained, so as to solve the problem that the existing flow meter is difficult to be quickly disassembled and maintained as mentioned in the background art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a flow meter that can be quickly disassembled and maintained, comprising a body and a connecting ring a, wherein two sets of elliptical gears are movably connected to the inside of the body through a central shaft and a bearing, and the two sets of elliptical gears are meshed with each other, one side of the body is connected to a liquid inlet, and the other side of the body is connected to a liquid outlet, characterized in that:

[0007] The top of the body is fixedly connected with a rubber pad a, the top of the rubber pad a is abutted with a rubber pad b, the top of the rubber pad b is fixedly connected with a top cover, the top of the top cover is fixedly connected with a threaded tube, the top of the threaded tube is fixedly connected with a connecting tube, a dial is installed on the top of the connecting tube, one side of the connecting tube is movably connected with an adjusting rod through a bearing, the outer side of the threaded tube is threadedly connected with a threaded sleeve, the bottom of the threaded sleeve is movably connected with a limiting ring a, the bottom of the limiting ring a is fixedly connected with a connecting ring a, the bottom of the connecting ring a is movably connected with multiple groups of connecting rods through a rotating shaft, and the multiple groups of connecting rods are distributed at equal angles with respect to the central axis of the connecting ring a, one end of the connecting rod is movably connected with a wedge block through a rotating shaft, the top of the body is provided with multiple groups of fixed blocks, and the multiple groups of fixed blocks are distributed at equal angles with respect to the central axis of the top cover, a wedge groove matching the wedge block is provided inside the fixed block, and a limiting mechanism for limiting its movement is provided on the top of the threaded sleeve.

[0008] Preferably, the limiting mechanism comprises a fixing ring fixedly connected to the outer side of the connecting pipe, and a clamping block is fixedly connected to the bottom of the fixing ring.

[0009] Preferably, the block has an L-shaped shape, and the top of the threaded sleeve is fixedly connected to a limiting sleeve.

[0010] Preferably, a plurality of groups of slide rods are fixedly connected to the outer side of the threaded tube, and the plurality of groups of slide rods are distributed at equal angles with respect to the central axis of the threaded tube, and the outer sides of the slide rods are slidably connected to the wedge blocks.

[0011] Preferably, a connecting box is fixedly connected to the bottom of the liquid inlet, a fixing sleeve is fixedly connected to the inner side of the connecting box, a filter is fixedly connected to the inner side of the fixing sleeve, a motor is fixedly connected to the bottom of the connecting box, a transmission shaft is fixedly connected to the output end of the motor, and a spiral groove is provided on the outer side of the transmission shaft.

[0012] Preferably, a protrusion is slidably connected to the inner side of the spiral groove, a blocking block is fixedly connected to one side of the protrusion, the top of the blocking block is spherical, the bottom of the blocking block is slidably connected to a limiting rod, the bottom of the limiting rod is fixedly connected to the connecting box, and the top of the transmission shaft is fixedly connected to a bevel gear a.

[0013] Preferably, the outer side of the bevel gear a is meshingly connected with a bevel gear b, one side of the bevel gear b is fixedly connected with a transmission rod, the outer side of the transmission rod is movably connected to a fixed sleeve via a bearing, and the outer side of the transmission shaft is movably connected to a connecting box via a bearing.

[0014] Preferably, one end of the transmission rod is fixedly connected to a cleaning scraper rod, and the cleaning scraper rod is arranged on one side of the filter screen. One side of the connecting box is movably connected to a door panel via a rotating shaft, and the side of the bottom of the connecting box close to the door panel is movably connected to a limiting block via a damping rotating shaft.

[0015] Preferably, a handle is sleeved on one end of the adjusting rod, a limiting ring b is movably connected to the inner side of the handle, a connecting ring b is fixedly connected to one side of the limiting ring b, and a spring is fixedly connected to one side of the connecting ring b.

[0016] Preferably, one end of the spring is fixedly connected to the adjusting rod, one end of the adjusting rod is provided with a rectangular groove, and the rectangular groove is snap-connected with the rectangular block, and one end of the rectangular block is fixedly connected to the handle.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The flow meter capable of rapid disassembly and maintenance, when being disassembled and maintained, is threadedly driven by rotating the threaded sleeve and the threaded tube to move the threaded sleeve upward. When the threaded sleeve moves, the bottom will drive the connecting ring a upward through the limit ring a. When the threaded sleeve is disengaged from the threaded transmission with the threaded tube, the threaded sleeve can be directly pulled upward to increase the speed of upward movement. The connecting ring a will drive the multiple groups of wedge blocks to move out of the wedge groove inside the fixed block through the multiple groups of connecting rods at the bottom. When the wedge blocks move, they will be limited by the sliding rod. When the wedge blocks are completely out of the fixed block, the top cover can be moved upward to separate from the body, and the inside of the body can be maintained. Thus, the flow meter can be rapidly disassembled and maintained through the above operations.

[0019] 2. The flow meter that can be quickly disassembled and maintained will filter the liquid entering the liquid inlet through the filter when the liquid passes through to prevent debris from entering. In order to prevent the debris from clogging the filter, the motor is started to rotate alternately forward and reverse, and the transmission shaft will rotate accordingly, and the convex block will be moved by the spiral groove on the outside. The convex block will drive the blocking block at one end to move up and down, so that the blocking groove on the top of the blocking block is opened. When the blocking block moves, it will be limited by the limit rod, and the bevel gear a on the top of the transmission shaft will mesh with the bevel gear b, thereby driving the bevel gear b to rotate. The transmission rod at one end of the bevel gear b will drive the cleaning scraper rod to rotate forward and reverse, so as to clean the filter on one side and make the debris blocked on the filter fall off. In this way, the above operation can keep the liquid flow in the flow meter unobstructed.

[0020] 3. The flow meter that can be quickly disassembled and maintained is provided with a set of handles at one end of the adjusting rod. When the handle is not pushed to move, the handle will not engage with the adjusting rod, so it will idle. When the adjusting rod needs to be driven to rotate, the handle is pushed to move, and the handle will squeeze the spring through the connecting ring b. The rotatable connecting ring b can reduce the friction on the end of the spring when the handle is idle. When the rectangular block inside the connecting ring b enters the rectangular groove at the end of the adjusting rod, it can drive the adjusting rod to rotate and clear the data on the dial. In this way, the data on the flow meter dial can be easily cleared through the above operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the present invention;

[0023] Figure 3 It is a three-dimensional schematic diagram of the elliptical gear of the present invention;

[0024] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the top cover of the present invention;

[0025] Figure 5 It is a three-dimensional cross-sectional schematic diagram of the machine body of the present invention;

[0026] Figure 6 It is a three-dimensional cross-sectional schematic diagram of the liquid inlet of the present invention;

[0027] Figure 7 It is a three-dimensional cross-sectional schematic diagram of the handle of the present invention.

[0028] In the figure: 1, body; 2, oval gear; 3, liquid inlet; 4, liquid outlet; 5, threaded pipe; 6, connecting pipe; 7, dial; 8, rubber pad a; 9, rubber pad b; 10, top cover; 11, threaded sleeve; 12, limit ring a; 13, connecting ring a; 14, connecting rod; 15, wedge block; 16, fixed block; 17, wedge groove; 18, limit mechanism; 181, fixed ring; 182, clamping block; 183, limit sleeve; 19, slide rod; 2 0. Connecting box; 21. Fixing sleeve; 22. Filter; 23. Motor; 24. Transmission shaft; 25. Spiral groove; 26. Bump; 27. Blocking block; 28. Limit rod; 29. ​​Bevel gear a; 30. Bevel gear b; 31. Transmission rod; 32. Cleaning scraper; 33. Door panel; 34. Limit block; 35. Handle; 36. Limit ring b; 37. Connecting ring b; 38. Spring; 39. Rectangular groove; 40. Rectangular block; 41. Adjustment rod. DETAILED DESCRIPTION

[0029] 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 described embodiments 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.

[0030] See also Figure 1-Figure 4 The present invention provides a technical solution: a flow meter that can be quickly disassembled and maintained, including a body 1 and a connecting ring a13, the interior of the body 1 is movably connected with two sets of elliptical gears 2 through a central shaft and a bearing, and the two sets of elliptical gears 2 are meshed with each other, one side of the body 1 is connected with a liquid inlet 3, and the other side of the body 1 is connected with a liquid outlet 4,

[0031] The top of the body 1 is fixedly connected with a rubber pad a8, the top of the rubber pad a8 is abutted with a rubber pad b9, the top of the rubber pad b9 is fixedly connected with a top cover 10, the top of the top cover 10 is fixedly connected with a threaded tube 5, the top of the threaded tube 5 is fixedly connected with a connecting tube 6, the top of the connecting tube 6 is installed with a dial 7, one side of the connecting tube 6 is movably connected with an adjusting rod 41 through a bearing, the outer side of the threaded tube 5 is threadedly connected with a threaded sleeve 11, the bottom of the threaded sleeve 11 is movably connected with a limiting ring a12, and the bottom of the limiting ring a12 is fixedly connected with A connecting ring a13, the bottom of the connecting ring a13 is movably connected to multiple groups of connecting rods 14 through a rotating shaft, and the multiple groups of connecting rods 14 are distributed at equal angles with respect to the central axis of the connecting ring a13, one end of the connecting rod 14 is movably connected to a wedge block 15 through a rotating shaft, the top of the body 1 is provided with multiple groups of fixing blocks 16, and the multiple groups of fixing blocks 16 are distributed at equal angles with respect to the central axis of the top cover 10, the fixing blocks 16 are provided with wedge grooves 17 matching the wedge blocks 15 inside, and a limiting mechanism 18 for limiting its movement is provided on the top of the threaded sleeve 11;

[0032] The limiting mechanism 18 includes a fixing ring 181 fixedly connected to the outer side of the connecting tube 6, and a clamping block 182 is fixedly connected to the bottom of the fixing ring 181; the outer shape of the clamping block 182 is "L"-shaped, and the top of the threaded sleeve 11 is fixedly connected to a limiting sleeve 183; the outer side of the threaded tube 5 is fixedly connected to multiple groups of sliding rods 19, and the multiple groups of sliding rods 19 are distributed at equal angles with respect to the central axis of the threaded tube 5, the outer side of the sliding rod 19 is slidably connected to the wedge block 15, and the bottom of the threaded sleeve 11 is provided with an annular groove matching the limiting ring a12, and the connecting ring a13 forms a rotating structure with the connecting rod 14 through a rotating shaft, and the interior of the top cover 10 is provided with multiple groups of positioning grooves matching the fixing block 16.

[0033] In specific implementation, the flow meter that can be quickly disassembled and maintained can be disassembled and maintained by rotating the threaded sleeve 11 and the threaded tube 5 for thread transmission, so that the threaded sleeve 11 moves upward. When the threaded sleeve 11 moves, the bottom will drive the connecting ring a13 to move upward through the limiting ring a12. When the threaded sleeve 11 is separated from the threaded transmission with the threaded tube 5, the threaded sleeve 11 can be directly pulled upward to increase the speed of upward movement. The connecting ring a13 will drive the multiple groups of wedge blocks 15 to move away from the wedge grooves 17 inside the fixed block 16 through the multiple groups of connecting rods 14 at the bottom. When the wedge blocks 15 move, they will be limited by the sliding rod 19. When the wedge blocks 15 are completely separated from the inside of the fixed block 16, the top cover 10 can be moved upward to separate from the body 1, and the interior of the body 1 can be maintained. The limiting sleeve 183 at the top of the threaded sleeve 11 can be engaged with the block 182 at the bottom of the fixed ring 181, thereby limiting the threaded sleeve 11 and preventing the threaded sleeve 11 from moving downward.

[0034] After the maintenance is completed, the multiple groups of positioning grooves on the top of the top cover 10 can be docked with the fixed block 16, and then the threaded sleeve 11 can be rotated to drive the limit sleeve 183 to disengage from the engagement with the block 182, and the threaded sleeve 11 can be moved downward to drive the wedge block 15 into the fixed block 16. When the threaded sleeve 11 contacts the threaded tube 5, the threaded sleeve 11 can be rotated to perform threaded transmission with the threaded tube 5, thereby pushing the wedge block 15 to abut against the wedge groove 17 inside the fixed block 16, so that the rubber pad b9 at the bottom of the top cover 10 is pressed tightly against the rubber pad a8 on the top of the body 1, and the connection between the body 1 and the top cover 10 is sealed while the connection between the two is completed. In this way, the flow meter can be quickly disassembled and maintained through the above operations.

[0035] See also Figure 1 , Figure 2 , Figure 5 and Figure 6The bottom of the liquid inlet 3 is fixedly connected with a connection box 20, the inner side of the connection box 20 is fixedly connected with a fixing sleeve 21, the inner side of the fixing sleeve 21 is fixedly connected with a filter screen 22, the bottom of the connection box 20 is fixedly connected with a motor 23, the output end of the motor 23 is fixedly connected with a transmission shaft 24, and the outer side of the transmission shaft 24 is provided with a spiral groove 25; the inner side of the spiral groove 25 is slidably connected with a protrusion 26, one side of the protrusion 26 is fixedly connected with a blocking block 27, the top of the blocking block 27 is spherical, the bottom of the blocking block 27 is slidably connected with a limit rod 28, the bottom of the limit rod 28 is fixedly connected to the connection box 20, and the top of the transmission shaft 24 is fixedly connected with a bevel gear a29; the outer side of the bevel gear a29 is meshingly connected There is a bevel gear b30, one side of the bevel gear b30 is fixedly connected with a transmission rod 31, the outer side of the transmission rod 31 is movably connected to the fixed sleeve 21 through a bearing, and the outer side of the transmission shaft 24 is movably connected to the connecting box 20 through a bearing; one end of the transmission rod 31 is fixedly connected with a cleaning scraper rod 32, and the cleaning scraper rod 32 is arranged on one side of the filter screen 22, one side of the connecting box 20 is movably connected with a door panel 33 through a rotating shaft, and the side of the bottom of the connecting box 20 close to the door panel 33 is movably connected to a limiting block 34 through a damping rotating shaft, and the bottom of the blocking block 27 is provided with a sliding groove matching the limiting rod 28, the limiting rod 28 and the blocking block 27 constitute a sliding structure, and the bevel gear a29 and the bevel gear b30 constitute an engaging transmission structure.

[0036] In specific implementation, the flow meter that can be quickly disassembled and maintained will filter the liquid entering at the liquid inlet 3 through the filter screen 22 when the liquid passes through to prevent debris from entering. In order to prevent the debris from clogging the filter screen 22, the motor 23 is started to rotate alternately forward and reverse, and the transmission shaft 24 will also rotate accordingly, and the protrusion 26 will be moved by the spiral groove 25 on the outside. The protrusion 26 will drive the blocking block 27 at one end to move up and down, so that the blocking groove at the top of the blocking block 27 is opened. When the blocking block 27 moves, it will be limited by the limiting rod 28, and the bevel gear a29 at the top of the transmission shaft 24 will mesh with the bevel gear b30, thereby driving the bevel gear b30 to rotate, and the transmission rod 31 at one end of the bevel gear b30 will drive the cleaning scraper rod 32 to rotate forward and reverse, so as to clean the filter screen 22 on one side and make the debris blocked on the filter screen 22 fall off;

[0037] After the impurities fall, they will pass through the sealing groove at the bottom. When the sealing block 27 moves downward, the debris in the sealing groove will enter the connecting box 20 for collection. After the collection is completed, the motor 23 can be started to drive the sealing block 27 to move upward to seal the sealing groove at the bottom of the liquid inlet 3 to prevent the liquid flowing in the liquid inlet 3 from entering the connecting box 20. When it is necessary to discharge the impurities in the connecting box 20, the limit block 34 is rotated to disengage from the limit of the connecting box 20, and then the door panel 33 is rotated to open so that the impurities inside the connecting box 20 can be discharged. In this way, the above operation can keep the liquid flow in the flow meter unobstructed.

[0038] See also Figure 1 , Figure 2 and Figure 7 One end of the adjusting rod 41 is sleeved with a handle 35, the inner side of the handle 35 is movably connected to a limit ring b36, one side of the limit ring b36 is fixedly connected to a connecting ring b37, and one side of the connecting ring b37 is fixedly connected to a spring 38; one end of the spring 38 is fixedly connected to the adjusting rod 41, one end of the adjusting rod 41 is provided with a rectangular groove 39, and the rectangular groove 39 is engaged and connected with the rectangular block 40, one end of the rectangular block 40 is fixedly connected to the handle 35, and the inside of the handle 35 is provided with a rotating groove matching the limit ring b36.

[0039] In specific implementation, the flow meter that can be quickly disassembled and maintained needs to rotate the adjustment rod 41 when zeroing the number of rotations of the elliptical gear 2 in the flow meter. In order to prevent the adjustment rod 41 from being accidentally touched, resulting in data changes, a set of handles 35 are provided at one end of the adjustment rod 41. When the handle 35 is not pushed to move, the handle 35 will not engage with the adjustment rod 41, so it will idle. When it is necessary to drive the adjustment rod 41 to rotate, by pushing the handle 35 to move, the handle 35 will squeeze the spring 38 through the connecting ring b37. The rotatable connecting ring b37 can reduce the friction of the handle 35 on the end of the spring 38 when the handle 35 is idle. When the rectangular block 40 inside the connecting ring b37 enters the rectangular groove 39 at the end of the adjustment rod 41, it can drive the adjustment rod 41 to rotate and clear the data on the dial 7. In this way, the above operation can facilitate the clearing of the data on the flow meter dial 7.

[0040] In summary, the liquid inlet 3 and the liquid outlet 4 of the body 1 are connected to the pipeline, and then the medium is transmitted. When the medium contacts the two sets of elliptical gears 2, the two sets will rotate. The number of rotations of the elliptical gears 2 will be transmitted to the dial 7, and the flow rate can be measured by the number of rotations. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0041] 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 flow meter capable of rapid disassembly and maintenance, comprising a body (1) and a connecting ring a (13), wherein two sets of elliptical gears (2) are movably connected to the inside of the body (1) via a central shaft and a bearing, and the two sets of elliptical gears (2) are meshed with each other, one side of the body (1) is connected to a liquid inlet (3), and the other side of the body (1) is connected to a liquid outlet (4), characterized in that: The top of the machine body (1) is fixedly connected to a rubber pad a (8), the top of the rubber pad a (8) is abutted against a rubber pad b (9), the top of the rubber pad b (9) is fixedly connected to a top cover (10), the top of the top cover (10) is fixedly connected to a threaded tube (5), the top of the threaded tube (5) is fixedly connected to a connecting tube (6), the top of the connecting tube (6) is mounted with a dial (7), one side of the connecting tube (6) is movably connected to an adjusting rod (41) via a bearing, the outer side of the threaded tube (5) is threadedly connected to a threaded sleeve (11), the bottom of the threaded sleeve (11) is movably connected to a limiting ring a (12), the limiting ring a (12) The bottom of the machine body (1) is fixedly connected to a connecting ring a (13), the bottom of the connecting ring a (13) is movably connected to a plurality of connecting rods (14) via a rotating shaft, and the plurality of connecting rods (14) are distributed at equal angles with respect to the central axis of the connecting ring a (13), one end of the connecting rod (14) is movably connected to a wedge block (15) via a rotating shaft, the top of the machine body (1) is provided with a plurality of fixing blocks (16), and the plurality of fixing blocks (16) are distributed at equal angles with respect to the central axis of the top cover (10), a wedge groove (17) matching the wedge block (15) is provided inside the fixing block (16), and a limiting mechanism (18) for limiting its movement is provided at the top of the threaded sleeve (11).

2. A flow meter capable of rapid disassembly and maintenance according to claim 1, characterized in that: The limiting mechanism (18) comprises a fixing ring (181) fixedly connected to the outside of the connecting pipe (6), and a clamping block (182) is fixedly connected to the bottom of the fixing ring (181).

3. A flow meter capable of rapid disassembly and maintenance according to claim 2, characterized in that: The block (182) has an L-shaped appearance, and the top of the threaded sleeve (11) is fixedly connected to a limiting sleeve (183).

4. A flow meter capable of rapid disassembly and maintenance according to claim 3, characterized in that: The outer side of the threaded tube (5) is fixedly connected to a plurality of groups of sliding rods (19), and the plurality of groups of sliding rods (19) are distributed at equal angles with respect to the central axis of the threaded tube (5), and the outer side of the sliding rods (19) is slidably connected to the wedge block (15).

5. The flow meter capable of rapid disassembly and maintenance according to claim 1, characterized in that: A connection box (20) is fixedly connected to the bottom of the liquid inlet (3), a fixing sleeve (21) is fixedly connected to the inner side of the connection box (20), a filter screen (22) is fixedly connected to the inner side of the fixing sleeve (21), a motor (23) is fixedly connected to the bottom of the connection box (20), a transmission shaft (24) is fixedly connected to the output end of the motor (23), and a spiral groove (25) is provided on the outer side of the transmission shaft (24).

6. A flow meter capable of rapid disassembly and maintenance according to claim 5, characterized in that: A protrusion (26) is slidably connected to the inner side of the spiral groove (25), a blocking block (27) is fixedly connected to one side of the protrusion (26), the top of the blocking block (27) is spherical, the bottom of the blocking block (27) is slidably connected to a limit rod (28), the bottom of the limit rod (28) is fixedly connected to the connection box (20), and the top of the transmission shaft (24) is fixedly connected to a bevel gear a (29).

7. A flow meter capable of rapid disassembly and maintenance according to claim 6, characterized in that: The outer side of the bevel gear a (29) is meshingly connected with a bevel gear b (30), one side of the bevel gear b (30) is fixedly connected with a transmission rod (31), the outer side of the transmission rod (31) is movably connected to a fixed sleeve (21) via a bearing, and the outer side of the transmission shaft (24) is movably connected to a connection box (20) via a bearing.

8. The flow meter capable of rapid disassembly and maintenance according to claim 7, characterized in that: One end of the transmission rod (31) is fixedly connected to a cleaning scraper rod (32), and the cleaning scraper rod (32) is arranged on one side of the filter screen (22). One side of the connection box (20) is movably connected to a door panel (33) via a rotating shaft, and a side of the bottom of the connection box (20) close to the door panel (33) is movably connected to a limit block (34) via a damping rotating shaft.

9. The flow meter capable of rapid disassembly and maintenance according to claim 1, characterized in that: One end of the adjusting rod (41) is sleeved with a handle (35), the inner side of the handle (35) is movably connected to a limit ring b (36), one side of the limit ring b (36) is fixedly connected to a connecting ring b (37), and one side of the connecting ring b (37) is fixedly connected to a spring (38).

10. A flow meter capable of rapid disassembly and maintenance according to claim 9, characterized in that: One end of the spring (38) is fixedly connected to the adjusting rod (41), one end of the adjusting rod (41) is provided with a rectangular groove (39), and the rectangular groove (39) is snap-connected with the rectangular block (40), and one end of the rectangular block (40) is fixedly connected to the handle (35).

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