Water meter with demisting function

Abstract

The utility model discloses a water meter with a demisting function, which belongs to the technical field of flow metering and comprises a shell. The shell is provided with a water pipe; a straight cylinder is arranged at the top of the shell; a mechanical water meter body is arranged in the straight cylinder; a rotating shaft of the mechanical water meter body is connected with an intelligent counting assembly; the intelligent counting assembly comprises an outer cover, a transverse shaft, a first bevel gear, a second bevel gear, a code reader, a code disc and a controller, a rotating shaft of the mechanical water meter body is fixedly mounted in a mounting hole of the second bevel gear, the second bevel gear is in meshed connection with the first bevel gear, and the transverse shaft is fixedly mounted in a mounting hole of the first bevel gear; the transverse shaft is rotationally connected with the straight cylinder through a bearing; and the outer cover is connected with an adjustable exhaust assembly for demisting the mechanical water meter body. According to the utility model, the code reader carries out code reading processing on the code disc and transmits data after code reading to the controller, the controller transmits the code reading data to the control terminal, and the control terminal carries out statistics on the data, so that intelligent counting is realized, and meter reading does not need to be carried out on site.

Description

Technical Field

[0001] This utility model relates to the field of flow metering technology, specifically to a water meter with defogging function. Background Technology

[0002] A water meter is a device used to measure water consumption. Currently, there are various types of water meters on the market, including volumetric water meters, mechanical water meters, and electronic water meters.

[0003] For example, Chinese patent CN219675179U describes a mechanical water meter, relating to the field of flow metering equipment, which can solve the problem of impeller reversal in existing mechanical water meters. The mechanical water meter includes a housing with a receiving cavity. An isolation plate is installed inside the housing, dividing the receiving cavity into a water flow cavity and a device cavity. The housing is connected to an inlet pipe and an outlet pipe, both of which communicate with the water flow cavity. A first rotating shaft is rotatably connected to the isolation plate, with its two ends extending into the water flow cavity and the device cavity, respectively. Multiple impellers are connected to the first rotating shaft. A second rotating shaft is rotatably connected to the wall of the device cavity. A drive gear is connected to the outer peripheral wall of the second rotating shaft, and the drive gear engages with a gear assembly inside the device cavity. The gear assembly drives the pointer or roller of the reading mechanism inside the device cavity to rotate. The end of the first rotating shaft near the device cavity is connected to the second rotating shaft via a ratchet assembly, so that when the first rotating shaft rotates clockwise or counterclockwise, the second rotating shaft rotates.

[0004] However, the above structure is mechanical, requiring manual on-site inspection during water meter reading, which increases the workload. Furthermore, errors in one metering method cannot be detected in a timely manner. In addition, the water meter is used in environments with a lot of water mist, and the above structure cannot handle the water mist in a timely manner, which will affect the long-term use of the water meter.

[0005] Based on this, the present invention designs a water meter with defogging function to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a water meter with a defogging function.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A water meter with defogging function includes a housing;

[0009] Water pipes are fixedly connected to both ends of the casing;

[0010] A straight cylinder is fixedly connected to the top of the housing, and a mechanical water meter body is fixedly installed inside the straight cylinder. The impeller, filter cylinder and guide cylinder of the mechanical water meter body are all located inside the housing.

[0011] The straight cylinder is fixedly connected to a glass cover by hinges and a lock;

[0012] The rotating shaft of the mechanical water meter body is connected to an intelligent counting component for intelligent counting;

[0013] The intelligent counting component includes an outer cover, a horizontal shaft, a first bevel gear, a second bevel gear, a code reader, a code disk, and a controller. The rotating shaft of the mechanical water meter body is fixedly installed in the mounting hole of the second bevel gear, and the second bevel gear meshes with the first bevel gear. The horizontal shaft is fixedly installed in the mounting hole of the first bevel gear and is rotatably connected to the straight cylinder through a bearing. A code disk is fixedly connected to the outer end of the horizontal shaft at the outer end of the straight cylinder. The outer cover is fixedly installed on the outer wall of the straight cylinder. The controller and the code reader are installed on the inner wall of the outer cover, and the controller and the code reader are electrically connected. The code disk rotates inside the outer cover, and the sensing end of the code reader is located outside the code disk.

[0014] The outer cover is connected to an adjustable exhaust assembly for demisting the mechanical water meter body.

[0015] Furthermore, the adjustable exhaust assembly includes an air inlet, a gas drive assembly, an adjustable sealing assembly, and an air guide assembly. An air inlet is provided at the bottom of the outer cover. The gas drive assembly is fixedly connected to the horizontal axis, the air guide assembly is fixedly connected to the outer cover, and the air guide assembly is connected to the straight cylinder. The part where the air guide assembly is connected to the straight cylinder is set higher than the mechanical water meter body.

[0016] Furthermore, the gas-driven assembly uses fan blades, which are fixedly mounted circumferentially on the outer wall of the horizontal shaft.

[0017] Furthermore, the adjustable sealing assembly includes an adjusting component, an air outlet pipe, an air inlet pipe, a straight pipe, and a horizontal pipe. The straight cylinder is fixedly connected to the air outlet pipe and the air inlet pipe at the upper end of the mechanical water meter body, with the air outlet pipe located above the air inlet pipe. The straight cylinder is fixedly connected to the horizontal pipe at the outer end of the air inlet pipe, and the horizontal pipe is fixedly connected to the straight pipe at the middle end. The bottom of the straight pipe is fixedly connected to the top of the outer cover. The adjusting component is slidably connected to the inner wall of the air outlet pipe and the horizontal pipe, and the adjusting component is fixedly connected to the straight cylinder.

[0018] Furthermore, when the regulating component blocks the outlet pipe and the horizontal pipe at the right end of the straight pipe, the regulating exhaust component provides heat dissipation for the intelligent counting component. When the regulating component does not contact the outlet pipe and the second sealing column and the horizontal pipe are blocked at the left end of the straight pipe, the gas enters the top of the mechanical water meter body through the straight pipe and the inlet pipe, and then exits from the outlet pipe to remove mist.

[0019] Furthermore, the adjustment assembly includes a side plate, a first crossbar, a first sealing post, a push-pull electromagnet, a push-pull electromagnet mounting plate, a second sealing post, and a second crossbar. The push-pull electromagnet mounting plate is fixedly connected to the outer wall of the straight cylinder, and the push-pull electromagnet is fixedly installed on the push-pull electromagnet mounting plate. The output end of the push-pull electromagnet is fixedly connected to the side plate. The upper and lower ends of the side plate are respectively fixedly connected to the first crossbar and the second crossbar. The end of the first crossbar near the straight cylinder is fixedly connected to the first sealing post that is inserted into the air outlet pipe, and the end of the second crossbar near the straight cylinder is fixedly connected to the second sealing post that is slidably connected to the inner wall of the horizontal pipe.

[0020] Furthermore, when the first sealing post is inserted into the outlet pipe, the second sealing post is in contact with the part of the horizontal pipe located at the right end of the straight pipe; when the first sealing post is separated from the outlet pipe, the second sealing post is in contact with the part of the horizontal pipe located at the left end of the straight pipe.

[0021] Furthermore, a partition is fixedly connected to the inner wall of the straight cylinder, and the rotating shaft of the mechanical water meter body is rotatably connected to the partition through a sealed bearing.

[0022] Advantages

[0023] This invention involves installing a water pipe onto the pipeline requiring testing. Water drives the impeller of the mechanical water meter body to rotate, which in turn drives the rotating shaft. The rotating shaft of the mechanical water meter body drives the dial of the mechanical water meter body to perform mechanical counting. The rotating shaft of the mechanical water meter body also drives the second bevel gear of the intelligent counting component to rotate, which in turn drives the first bevel gear to rotate. The first bevel gear drives the horizontal shaft to rotate, which in turn drives the code disk to rotate along the code reader. The code reader reads the code from the code disk and transmits the read data to the controller. The controller then transmits the read data to the control unit. The terminal controls the data to achieve intelligent counting, eliminating the need for on-site meter reading. It achieves high-precision counting through the combination of intelligent and mechanical counting. At the same time, the data counted by the intelligent counting component is compared with the data on the mechanical water meter body. If there is a difference between the two data, it indicates that there is a problem with the intelligent counting component or the mechanical water meter body, which requires maintenance. In addition, the adjustable venting component removes water mist from the top of the mechanical water meter body, keeping the area above the mechanical water meter body dry and reducing the impact of water mist on the mechanical water meter body. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional water meter with defogging function according to Embodiment 1 of the present invention. Figure 1 ;

[0026] Figure 2 This is a front view of a water meter with defogging function according to Embodiment 1 of this utility model;

[0027] Figure 3 This is a left view of a water meter with defogging function according to Embodiment 1 of this utility model;

[0028] Figure 4 This is a three-dimensional water meter diagram with defogging function according to Embodiment 1 of this utility model. Figure 2 ;

[0029] Figure 5 For along Figure 3 A sectional view along the AA direction;

[0030] Figure 6 for Figure 5 The structure at point B is enlarged;

[0031] Figure 7 for Figure 5 Enlarged view of the structure at point C.

[0032] The labels in the diagram represent:

[0033] 1. Water pipe; 2. Housing; 3. Intelligent counting component; 31. Outer cover; 32. Horizontal shaft; 33. First bevel gear; 34. Second bevel gear; 35. Code reader; 36. Code disk; 37. Controller; 4. Adjustable exhaust component; 41. Straight pipe; 42. Side plate; 43. First crossbar; 44. First sealing post; 45. Air outlet pipe; 46. Push-pull electromagnet; 47. Push-pull electromagnet mounting plate; 48. Second sealing post; 49. Air inlet pipe; 410. Horizontal pipe; 411. Second crossbar; 412. Air inlet hole; 413. Fan blade; 5. Mechanical water meter body; 6. Straight cylinder; 7. Glass cover. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0035] The present invention will be further described below with reference to the embodiments.

[0036] Example 1

[0037] Please see the appendix Figures 1-7 A water meter with defogging function includes a housing 2;

[0038] Water pipes 1 are fixedly connected to both ends of the casing 2;

[0039] A straight cylinder 6 is fixedly connected to the top of the housing 2. A mechanical water meter body 5 is fixedly installed inside the straight cylinder 6, and the impeller, filter cylinder and guide cylinder of the mechanical water meter body 5 are all located inside the housing 2.

[0040] The straight cylinder 6 is fixedly connected to the glass cover 7 by a hinge and a lock;

[0041] The rotating shaft of the mechanical water meter body 5 is connected to an intelligent counting component 3 for intelligent counting;

[0042] The intelligent counting component 3 includes an outer cover 31, a horizontal shaft 32, a first bevel gear 33, a second bevel gear 34, a code reader 35, a code disk 36, and a controller 37. The rotating shaft of the mechanical water meter body 5 is fixedly installed in the mounting hole of the second bevel gear 34. The second bevel gear 34 meshes with the first bevel gear 33. The horizontal shaft 32 is fixedly installed in the mounting hole of the first bevel gear 33. The horizontal shaft 32 is rotatably connected to the straight cylinder 6 through a bearing. The code disk 36 is fixedly connected to the outer end of the horizontal shaft 32 at the outer end of the straight cylinder 6. The outer cover 31 is fixedly installed on the outer wall of the straight cylinder 6. The controller 37 and the code reader 35 are installed on the inner wall of the outer cover 31. The controller 37 and the code reader 35 are electrically connected. The code disk 36 rotates inside the outer cover 31. The sensing end of the code reader 35 is located outside the code disk 36.

[0043] The outer cover 31 is connected to an adjustable exhaust assembly 4 for demisting the mechanical water meter body 5;

[0044] Water pipe 1 is installed on the pipe to be tested. Water drives the impeller of the mechanical water meter body 5 to rotate. The impeller of the mechanical water meter body 5 drives the rotating shaft to rotate. The rotating shaft of the mechanical water meter body 5 drives the dial of the mechanical water meter body 5 to perform mechanical counting. The rotating shaft of the mechanical water meter body 5 drives the second bevel gear 34 of the intelligent counting component 3 to rotate. The second bevel gear 34 drives the first bevel gear 33 to rotate. The first bevel gear 33 drives the horizontal shaft 32 to rotate. The horizontal shaft 32 drives the code disk 36 to rotate along the code reader 35. The code reader 35 reads the code from the code disk 36 (this reading principle is based on the rotation data reading principle of the servo motor) and sends the read data to the controller 37. The controller 37... The code reading data is then transmitted to the control terminal, which performs statistical analysis on the data to achieve intelligent counting. There is no need to go to the site to read the meter. High-precision counting is achieved through the combination of intelligent counting and mechanical counting. At the same time, during routine inspections, the data counted by the intelligent counting component 3 and the data on the mechanical water meter body 5 are compared manually. If there is a difference between the two data, it indicates that there is a problem with the intelligent counting component 3 or the mechanical water meter body 5, and the intelligent counting component 3 or the mechanical water meter body 5 needs to be repaired. This facilitates timely detection of problems. In addition, the adjustable exhaust component 4 removes water mist above the mechanical water meter body 5, keeps the area above the mechanical water meter body 5 dry, and reduces the impact of water mist on the mechanical water meter body 5.

[0045] A partition is fixedly connected to the inner wall of the straight cylinder 6, and the rotating shaft of the mechanical water meter body 5 is rotatably connected to the partition through a sealed bearing;

[0046] The adjustable exhaust assembly 4 includes an air inlet 412, a gas drive assembly, an adjustable sealing assembly, and an air guide assembly. The bottom of the outer cover 31 has an air inlet 412. The gas drive assembly is fixedly connected to the horizontal shaft 32. The air guide assembly is fixedly connected to the outer cover 31. The air guide assembly is connected to the straight cylinder 6, and the part where the air guide assembly is connected to the straight cylinder 6 is set higher than the mechanical water meter body 5.

[0047] The gas drive assembly uses fan blade 413, which is fixedly mounted on the outer wall of the horizontal shaft 32 along the circumference.

[0048] The adjustable sealing assembly includes an adjusting component, an air outlet pipe 45, an air inlet pipe 49, a straight pipe 41, and a horizontal pipe 410. The straight pipe 6 is fixedly connected to the air outlet pipe 45 and the air inlet pipe 49 at the upper end of the mechanical water meter body 5, with the air outlet pipe 45 positioned above the air inlet pipe 49. A horizontal pipe 410 is fixedly connected to the outer end of the straight pipe 6 at the air inlet pipe 49. The straight pipe 41 is fixedly connected to the middle of the horizontal pipe 410, and its bottom is fixedly connected to the top of the outer cover 31. The adjusting component is connected to the air outlet pipe 45 and the horizontal pipe 410. The inner wall of the pipe 410 is slidably connected, and the adjusting component is fixedly connected to the straight cylinder 6. When the adjusting component blocks the part of the outlet pipe 45 and the horizontal pipe 410 located at the right end of the straight pipe 41, the adjusting exhaust component 4 heats up the intelligent counting component 3. When the adjusting component does not contact the outlet pipe 45 and the second sealing column 48 and the horizontal pipe 410 are located at the left end of the straight pipe 41, the gas enters the top of the mechanical water meter body 5 through the straight pipe 41 and the air inlet pipe 49, and then exits from the outlet pipe 45 to remove mist.

[0049] The adjustment assembly includes a side plate 42, a first crossbar 43, a first sealing post 44, a push-pull electromagnet 46, a push-pull electromagnet mounting plate 47, a second sealing post 48, and a second crossbar 411. The push-pull electromagnet mounting plate 47 is fixedly connected to the outer wall of the straight cylinder 6. The push-pull electromagnet 46 is fixedly installed on the push-pull electromagnet mounting plate 47. The output end of the push-pull electromagnet 46 is fixedly connected to the side plate 42. The first crossbar 43 and the second crossbar 411 are fixedly connected to the upper and lower ends of the side plate 42, respectively. The first crossbar 43 is close to... The end of the straight cylinder 6 is fixedly connected to a first sealing post 44 that is inserted into the air outlet pipe 45. The end of the second crossbar 411 near the straight cylinder 6 is fixedly connected to a second sealing post 48 that is slidably connected to the inner wall of the crossbar 410. When the first sealing post 44 is inserted into the air outlet pipe 45, the second sealing post 48 is in contact with the part of the crossbar 410 located at the right end of the straight pipe 41. When the first sealing post 44 is separated from the air outlet pipe 45, the second sealing post 48 is in contact with the part of the crossbar 410 located at the left end of the straight pipe 41.

[0050] When the intelligent counting component 3 needs heat dissipation, the push-pull electromagnet 46 of the adjustable sealing component of the adjustable exhaust component 4 drives the side plate 42 to move to the right. The side plate 42 drives the first crossbar 43 and the second crossbar 411 to move. The first crossbar 43 drives the first sealing column 44 to block the air outlet pipe 45. The second crossbar 411 drives the second sealing column 48 to move until the second sealing column 48 is in contact with the part of the horizontal pipe 410 located at the right end of the straight pipe 41. The horizontal shaft 32 drives the fan blade 413 of the adjustable exhaust component 4 to rotate. The fan blade 413 drives the air flow in the outer cover 31. The air enters the outer cover 31 through the air inlet 412, and then exits from the straight pipe 41. Finally, it exits from the left end of the horizontal pipe 410, realizing the air flow in the outer cover 31. The flowing air carries away the heat in the outer cover 31, realizing the heat dissipation of the controller 37 and the code reader 35 in the outer cover 31.

[0051] When water mist needs to be removed from the top of the mechanical water meter body 5, the push-pull electromagnet 46 of the adjustable sealing component of the adjustable exhaust assembly 4 drives the side plate 42 to move to the left. The side plate 42 drives the first crossbar 43 and the second crossbar 411 to move. The first crossbar 43 drives the first sealing column 44 to move to the outside of the air outlet pipe 45. The second crossbar 411 drives the second sealing column 48 to move until the second sealing column 48 is in contact with the part of the horizontal pipe 410 located at the left end of the straight pipe 41. The horizontal shaft 32 drives the fan blade 413 of the adjustable exhaust assembly 4 to rotate. The fan blade 413 drives the air inside the outer cover 31 to flow. The air enters the outer cover 31 through the air inlet 412. The flowing air enters the horizontal pipe 410 through the straight pipe 41, and then enters the mechanical water meter body 5 through the air inlet pipe 49. The flowing air carries away the water mist on the mechanical water meter body 5 and discharges it from the air outlet pipe 45, thus removing the water mist above the mechanical water meter body 5.

[0052] The push-pull electromagnet 46 is electrically connected to the controller 37. The control terminal can periodically send a signal to the controller 37 to control the push-pull electromagnet 46, and the controller 37 will then control the push-pull electromagnet 46. Alternatively, the operator can send a signal to the controller 37 to control the push-pull electromagnet 46 through the control terminal, and the controller 37 will then control the push-pull electromagnet 46.

[0053] To prevent dust from entering the air inlet 412, a mesh filter screen can be fixedly installed inside the air inlet 412. 。

[0054] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A water meter with defogging function, comprising a housing (2), characterized in that: Water pipes (1) are fixedly connected to both ends of the shell (2); A straight cylinder (6) is fixedly connected to the top of the housing (2), and a mechanical water meter body (5) is fixedly installed inside the straight cylinder (6). The impeller, filter cylinder and guide cylinder of the mechanical water meter body (5) are all located inside the housing (2). The straight cylinder (6) is fixedly connected to the glass cover (7) by a hinge and a lock; The rotating shaft of the mechanical water meter body (5) is connected to an intelligent counting component (3) for intelligent counting; The intelligent counting component (3) includes an outer cover (31), a horizontal shaft (32), a first bevel gear (33), a second bevel gear (34), a code reader (35), a code disk (36), and a controller (37). The rotating shaft of the mechanical water meter body (5) is fixedly installed in the mounting hole of the second bevel gear (34). The second bevel gear (34) meshes with the first bevel gear (33). The horizontal shaft (32) is fixedly installed in the mounting hole of the first bevel gear (33). (32) is rotatably connected to the straight cylinder (6) via a bearing. The horizontal shaft (32) is fixedly connected to the code disk (36) at the outer end of the straight cylinder (6). The outer cover (31) is fixedly installed on the outer wall of the straight cylinder (6). The controller (37) and the code reader (35) are installed on the inner wall of the outer cover (31). The controller (37) and the code reader (35) are electrically connected. The code disk (36) rotates inside the outer cover (31). The sensing end of the code reader (35) is located outside the code disk (36). The outer cover (31) is connected to an adjustable exhaust assembly (4) for demisting the mechanical water meter body (5).

2. The water meter with defogging function according to claim 1, characterized in that, The adjustable exhaust assembly (4) includes an air inlet (412), a gas drive assembly, an adjustable sealing assembly, and an air guide assembly. The bottom of the outer cover (31) has an air inlet (412). The gas drive assembly is fixedly connected to the horizontal shaft (32). The air guide assembly is fixedly connected to the outer cover (31). The air guide assembly is connected to the straight cylinder (6). The part where the air guide assembly is connected to the straight cylinder (6) is set higher than the mechanical water meter body (5).

3. The water meter with defogging function according to claim 2, characterized in that, The gas drive assembly uses a fan blade (413), which is fixedly mounted on the outer wall of the horizontal shaft (32) along the circumference.

4. The water meter with defogging function according to claim 2, characterized in that, The adjustable sealing assembly includes an adjusting component, an air outlet pipe (45), an air inlet pipe (49), a straight pipe (41), and a horizontal pipe (410). The straight cylinder (6) is fixedly connected to the air outlet pipe (45) and the air inlet pipe (49) at the upper end of the mechanical water meter body (5), and the air outlet pipe (45) is located above the air inlet pipe (49). The straight cylinder (6) is fixedly connected to the horizontal pipe (410) at the outer end of the air inlet pipe (49). The horizontal pipe (41) is fixedly connected to the middle end of the horizontal pipe (410). The bottom of the straight pipe (41) is fixedly connected to the top of the outer cover (31). The adjusting component is slidably connected to the inner wall of the air outlet pipe (45) and the horizontal pipe (410). The adjusting component is fixedly connected to the straight cylinder (6).

5. The water meter with defogging function according to claim 4, characterized in that, When the regulating component blocks the outlet pipe (45) and the horizontal pipe (410) at the right end of the straight pipe (41), the regulating exhaust component (4) heats up the intelligent counting component (3). When the regulating component does not contact the outlet pipe (45) and the second blocking column (48) and the horizontal pipe (410) are located at the left end of the straight pipe (41), the gas enters the top of the mechanical water meter body (5) through the straight pipe (41) and the air inlet pipe (49), and then is discharged from the outlet pipe (45) for demisting.

6. The water meter with defogging function according to claim 4, characterized in that, The adjustment assembly includes a side plate (42), a first crossbar (43), a first sealing post (44), a push-pull electromagnet (46), a push-pull electromagnet mounting plate (47), a second sealing post (48), and a second crossbar (411). The push-pull electromagnet mounting plate (47) is fixedly connected to the outer wall of the straight cylinder (6). The push-pull electromagnet (46) is fixedly installed on the push-pull electromagnet mounting plate (47). The output end of the push-pull electromagnet (46) is fixedly connected to the side plate (42). The first crossbar (43) and the second crossbar (411) are fixedly connected to the upper and lower ends of the side plate (42), respectively. The end of the first crossbar (43) near the straight cylinder (6) is fixedly connected to the first sealing post (44) which is inserted into the air outlet pipe (45). The end of the second crossbar (411) near the straight cylinder (6) is fixedly connected to the second sealing post (48) which is slidably connected to the inner wall of the horizontal pipe (410).

7. The water meter with defogging function according to claim 6, characterized in that, When the first sealing column (44) is inserted into the vent pipe (45), the second sealing column (48) and the horizontal pipe (410) are in contact at the right end of the straight pipe (41). When the first sealing column (44) is separated from the vent pipe (45), the second sealing column (48) and the horizontal pipe (410) are in contact at the left end of the straight pipe (41).

8. The water meter with defogging function according to any one of claims 1-7, characterized in that, A partition is fixedly connected to the inner wall of the straight cylinder (6), and the rotating shaft of the mechanical water meter body (5) is rotatably connected to the partition through a sealed bearing.

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