A defogging device for an ultrasonic water meter

Abstract

The application discloses a kind of defogging devices of ultrasonic water meter, it is related to ultrasonic water meter technical field, including protective housing, the inside of the protective housing is equipped with defogging mechanism, the defogging mechanism includes upper clamp ring, the top of protective housing inside is located in the upper clamp ring, the middle part of the left and right ends of the bottom of the upper clamp ring and the middle part of the front and back sides are all fixedly connected with one insertion pipe block, the bottom hoop of the upper clamp ring has lower clamp ring.The application is defogged by defogging mechanism, motor drives the rotation of fixed connection of output end vane, wind power produced by vane rotation passes through heating rod and enters into heat insulation ring column, along heat insulation ring column and enters into the inner cavity of lower clamp ring and upper clamp ring, airflow flows onto observation glass sheet by being equipped with multiple holes on the lower surface of the inside of upper clamp ring and the upper surface of the inside of lower clamp ring, while the water mist produced on observation glass sheet is dried, the temperature inside and outside observation glass sheet is kept consistent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ultrasonic water meter, in particular to a kind of ultrasonic water meter defogging device. BACKGROUND

[0002] Ultrasonic water meter is a new type of water meter by detecting the time difference of ultrasonic beam in water downstream and upstream propagation due to speed change, analysis and processing to obtain the flow velocity of water to further calculate the flow of water.

[0003] The existing ultrasonic water meter will generate a certain amount of heat when the internal core runs in cold weather, and the observation glass sheet on the ultrasonic water meter will produce fog due to the large temperature difference between inside and outside, which will easily affect the observation of the displayed data on the ultrasonic water meter by the staff. The observation glass sheet on the existing ultrasonic water meter is mostly embedded in the top of the water meter, so the surface of the water meter is mostly concave. When dust and debris fall into the concave groove, it is difficult for the staff to clean the debris inside the groove, and the accumulated dust and debris can easily erode and damage the surface of the water meter over time. SUMMARY

[0004] Therefore, the purpose of the present application is to provide an ultrasonic water meter defogging device to solve the technical problem that the existing ultrasonic water meter will generate a certain amount of heat when the internal core runs in cold weather, and the observation glass sheet on the ultrasonic water meter will produce fog due to the large temperature difference between inside and outside, which will easily affect the observation of the displayed data on the ultrasonic water meter by the staff. The observation glass sheet on the existing ultrasonic water meter is mostly embedded in the top of the water meter, so the surface of the water meter is mostly concave. When dust and debris fall into the concave groove, it is difficult for the staff to clean the debris inside the groove, and the accumulated dust and debris can easily erode and damage the surface of the water meter over time.

[0005] In order to achieve the above object, the present application provides the following technical scheme: A defogging device of an ultrasonic water meter, comprising a protective shell, a defogging mechanism is arranged on the inner side of the protective shell, the defogging mechanism comprises an upper clamping ring, the upper clamping ring is located at the top of the inner side of the protective shell, the middle part of the left and right ends and the middle part of the front and back of the bottom of the upper clamping ring are fixedly connected with a pipe block, the bottom hoop of the upper clamping ring is a lower clamping ring, the pipe block is connected with the upper surface of the lower clamping ring, the middle part of the left and right ends and the middle part of the front and back of the lower surface of the lower clamping ring are fixedly connected with a supporting hoop column block, the inner side of the supporting hoop column block is provided with a column cavity, the bottom of the supporting hoop column block is fixedly connected with a heat insulation ring column, the column cavity is connected with the lower clamping ring and the heat insulation ring column, the middle part of the left and right ends and the middle part of the front and back of the bottom of the heat insulation ring column are fixedly connected with a gas pipe, the lower side of the heat insulation ring column is provided with a gas flow circulation cavity, the gas pipe is connected with the gas flow circulation cavity, the middle part of the inner side of the gas flow circulation cavity is rotatably connected with a fan blade, the middle part of the bottom of the gas flow circulation cavity is fixedly connected with a motor, the bottom of the fan blade is fixedly connected with the output end of the motor through the middle part of the gas flow circulation cavity, the inner side of the gas flow circulation cavity is provided with a dust collection groove at the position below the gas pipe, the middle part of the space between the fan blade and the dust collection groove is provided with a heating rod, and a plurality of holes are arranged on the lower surface of the inner side of the upper clamping ring and the upper surface of the inner side of the lower clamping ring.

[0006] Through the above technical scheme, when defogging, the fan blade fixedly connected with the output end of the motor rotates, the wind power generated by the rotation of the fan blade enters the heat insulation ring column through the heating rod, enters the inner cavity of the lower clamping ring and the upper clamping ring along the heat insulation ring column, and the gas flow flows onto the observation glass sheet through the plurality of holes arranged on the lower surface of the inner side of the upper clamping ring and the upper surface of the inner side of the lower clamping ring, so that the temperature inside and outside the observation glass sheet is kept constant, which is beneficial to prevent the observation glass sheet from generating fog due to large temperature difference on the surface.

[0007] The present application is further provided that the upper side of the outer side of the protective shell is detachably connected with a plugging cover through threads, the upper surface of the plugging cover is provided with a mounting hoop groove, the inner side of the mounting hoop groove is clamped with a protective cover, the left and right ends of the rear side of the protective cover are fixedly connected with an axle block, the left and right ends of the rear side of the mounting hoop groove are provided with an axle block clamping groove, the protective cover is rotatably connected with the mounting hoop groove through the axle block and the axle block clamping groove, and the inner side between the upper clamping ring and the lower clamping ring is clamped with an observation glass sheet.

[0008] Through the above technical scheme, the surface of the water meter is protected by the plugging cover and the protective cover, which is beneficial to prevent the observation glass sheet from being damaged under the impact of external force and facilitate the anti-freezing protection of the meter core arranged on the middle part of the inner side of the protective shell.

[0009] The upper surface of the air flow circulation cavity is provided with a table core in the middle, the inner surface of the heat insulation ring column is provided with two tapered grooves in the middle of the left and right ends and the front and back sides, the outer side of the motor is provided with a controller, and the bottom of the controller is fixedly connected with the bottom of the inner side of the protective shell.

[0010] By adopting the above technical scheme, the air flow can enter the table core through the tapered grooves, and the heat generated by the operation of the internal parts of the table core can be dissipated.

[0011] The middle of the inner side of the tapered groove is fixedly connected with a limiting block plate, the middle of the limiting block plate is slidingly connected with a blocking valve block, and the outer side of the blocking valve block close to the position of the inner cavity of the heat insulation ring column is provided with an auxiliary spring.

[0012] When the air flow flows from bottom to top through the tapered grooves, the air pressure generated by the air flow will push the blocking valve block to slide to the inner side of the heat insulation ring column under the limitation of the limiting block plate, and the air holes blocked by the blocking valve block are opened, at this time, the air flow enters the inner side of the heat insulation ring column through the opened air holes to dissipate heat for the table core provided in the inner side of the heat insulation ring column, when the air flow flows through the tapered grooves, the blocking valve block loses the air pressure pushing and reversely slides under the driving of the auxiliary spring.

[0013] The middle of the bottom of the protective shell is fixedly connected with a supporting column rod, the middle of the inner side of the supporting column rod is provided with a self-checking mechanism, the self-checking mechanism comprises a pushing plate, the pushing plate is located at the bottom of the motor, an lifting limiting cavity is formed in the inner wall of the inner bottom of the protective shell, the pushing plate is located in the inner side of the lifting limiting cavity and is slidingly connected with the lifting limiting cavity, a slide rod is fixedly connected to the middle of the bottom of the pushing plate, a piston column block is fixedly connected to the bottom of the slide rod, a guide cavity is formed in the middle of the inner side of the supporting column rod, and the piston column block is slidingly connected with the guide cavity.

[0014] When the one end of the pipeline connected with the main pipe body is blocked, the flowing water cannot quickly flow to the one end, and the water pressure generated by the flowing water will push the piston column block to vertically slide upward under the guidance of the guide cavity, the upward sliding piston column block will drive the slide rod fixedly connected to the middle of the top to slide upward, thereby driving the pushing plate fixedly connected to the top of the slide rod to slide upward and push the pressure sensor provided on the top of the controller, when the pressure sensor senses that the pressure is too large, the alarm in the inner side of the controller will be triggered, reminding the staff, so that the staff can timely maintain and clean the connected pipeline

[0015] The application is further provided with a bracket column block fixedly connected to the middle part of the left and right ends of the inner side of the lifting limiting cavity, a guide hole is formed in the connecting part of the pushing plate and the bracket column block, the pushing plate is stably and slidably connected to the lifting limiting cavity through the guide hole and the bracket column block, the upper part of the pushing plate is in contact with the middle part of the bottom end of the controller, and the bottom end of the supporting column rod is fixedly connected with a main pipe body.

[0016] By adopting the above technical scheme, the track of the pushing plate in the upward and downward sliding process is limited and guided by the bracket column block and the guide hole.

[0017] In summary, the application has the following advantages: the generated fog on the observation glass sheet can be defogged by utilizing the heat generated by the watch movement, the dust accumulated on the observation glass sheet can be automatically cleaned and collected, and whether the pipeline where the water meter is located is blocked can be detected in time.

[0018] 1. When the defogging mechanism is used, the fan blade at the output end of the motor rotates, the wind power generated by the rotation of the fan blade passes through the heating rod and enters the inner cavity of the heat insulation ring column at the top of the air flow circulation cavity through the gas conveying pipe fixedly connected to one end of the top of the air flow circulation cavity. When the airflow flows from bottom to top and passes through the conical groove, the air pressure generated by the airflow will push the blocking valve block to slide to the inner side of the heat insulation ring column under the limitation of the limiting block plate, so that the air hole formed in the limiting block plate is opened in the sliding separation process of the blocking valve block, and the airflow enters the watch movement through the air hole to guide the heat generated by the watch movement. When the heat flows to the lower surface of the lower clamping ring under the driving of the airflow, the airflow flowing from bottom to top in the inner side of the heat insulation ring column will flow into the lower clamping ring through the bracket column block fixedly connected to the top of the heat insulation ring column and the column cavity formed in the inner part thereof. After the airflow flowing from the inner lower surface of the lower clamping ring flows into the hole, it flows into the upper clamping ring through the inner cavity of the lower clamping ring and the plug block, and flows into the outer surface of the observation glass sheet through the hole formed in the lower surface of one end of the upper clamping ring, so as to dry the fog condensed on the surface of the observation glass sheet. When the dust is cleaned, the fan blade at the output end fixedly connected to the motor rotates reversely, the suction generated by the reverse rotation will make the dust on the upper surface of the observation glass sheet enter the upper clamping ring through the hole formed in the lower surface of one end of the upper clamping ring, enter the lower clamping ring through the plug block fixedly connected to the bottom of the upper clamping ring, enter the heat insulation ring column through the column cavity provided at the bottom of the lower clamping ring, and fall into the dust collecting groove through the gas conveying pipe fixedly connected to the bottom of the heat insulation ring column, so as to defog the fog generated on the observation glass sheet by utilizing the heat generated by the watch movement, and automatically clean and collect the dust accumulated on the observation glass sheet.

[0019] 2、The self-checking mechanism, when the main body is connected with the pipeline, the water pressure generated in the flowing process pushes the piston column block, the piston column block slides upward along the guide cavity, the sliding rod top fixedly connected with the piston column block drives the pushing plate to slide to the top of the controller under the limitation of the support column block and the guide hole, the annular convex column fixed on the upper surface of the pushing plate slides and clamps the controller provided at the bottom of the controller, when the pressure sensor senses that the pressure is too large, the alarm in the controller is triggered, the alarm emits an alarm sound, the alarm sound reminds the staff, and whether the pipeline where the water meter is located is blocked is detected in time, and the staff can timely maintain the blocked pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of the perspective view of the application;

[0021] Figure 2 It is a partial sectional perspective structure schematic view of the application;

[0022] Figure 3 It is a sectional perspective structure schematic view of the heat insulation ring column and the air flow circulation cavity connected in the application;

[0023] Figure 4 It is an enlarged structure schematic view of A part in the application; Figure 3

[0024] Figure 5 It is a sectional perspective structure schematic view of the perspective view of the application;

[0025] Figure 6 It is a sectional perspective structure schematic view of the perspective view of the application;

[0026] Figure 7 It is an enlarged structure schematic view of B part in the application. Figure 6

[0027] In the figure: 1, main body; 2, support column rod; 3, protective shell; 4, defogging mechanism; 41, plugging cover; 42, protective cover; 43, upper clamping ring; 44, insertion pipe block; 45, lower clamping ring; 46, heat insulation ring column; 47, air flow circulation cavity; 48, dust collection groove; 49, heating rod; 410, controller; 411, motor; 412, fan blade; 413, gas conveying pipe; 414, conical groove; 415, limiting block plate; 416, plugging valve block; 417, auxiliary spring; 418, mounting clamp groove; 5, meter core; 6, observation glass sheet; 7, self-checking mechanism; 71, pushing plate; 72, support column block; 73, sliding rod; 74, guide cavity; 75, piston column block. DETAILED DESCRIPTION ​​

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0029] The embodiments of the present application will be described below according to the overall structure of the present application.

[0030] A defogging device of an ultrasonic water meter, such as Figures 1-7As shown, including protective shell 3, the inner side of protective shell 3 is provided with defogging mechanism 4, defogging mechanism 4 includes upper clamp ring 43, upper clamp ring 43 is located at the top of the inner side of protective shell 3, the middle of the left and right ends of the bottom of upper clamp ring 43 and the middle of the front and back sides are fixedly connected with one plug pipe block 44, the bottom of upper clamp ring 43 is clamped with lower clamp ring 45, plug pipe block 44 is connected with the upper surface of lower clamp ring 45, the middle of the left and right ends of the lower surface of lower clamp ring 45 and the middle of the front and back sides are fixedly connected with one supporting hoop column block, the inner side of supporting hoop column block is provided with column cavity, the bottom of supporting hoop column block is fixedly connected with heat insulation ring column 46, column cavity is connected with lower clamp ring 45 and heat insulation ring column 46, the middle of the left and right ends of the bottom of heat insulation ring column 46 and the middle of the front and back sides are fixedly connected with one gas pipe 413, the lower side of heat insulation ring column 46 is provided with airflow circulation cavity 47, gas pipe 413 is connected with airflow circulation cavity 47, the middle of the inner side of airflow circulation cavity 47 is rotatably connected with fan blade 412, the middle of the bottom of airflow circulation cavity 47 is fixedly connected with motor 411, the bottom of fan blade 412 is connected with the output end of motor 411 through the middle of airflow circulation cavity 47, the inner side of airflow circulation cavity 47 is provided with dust collection groove 48 below gas pipe 413, heating rod 49 is arranged between fan blade 412 and dust collection groove 48, a plurality of holes are formed in the lower surface of the inner side of upper clamp ring 43 and the upper surface of the inner side of lower clamp ring 45, blocking cover 41 is detachably connected to the upper side of the outer side of protective shell 3 through threads, mounting clamp groove 418 is formed in the upper surface of blocking cover 41, protective cover 42 is clamped in the inner side of mounting clamp groove 418, shaft block is fixedly connected to the left and right ends of the rear side of protective cover 42, shaft block clamping groove is formed in the left and right ends of the rear side of mounting clamp groove 418, protective cover 42 is rotatably connected with mounting clamp groove 418 through the shaft block and shaft block clamping groove, observation glass sheet 6 is clamped in the inner side between upper clamp ring 43 and lower clamp ring 45, surface core 5 is mounted on the middle of the upper surface of airflow circulation cavity 47, two tapered grooves 414 are arranged in the left and right ends and the middle of the front and back sides of the inner surface of heat insulation ring column 46, controller 410 is arranged on the outer side of motor 411, the bottom of controller 410 is fixedly connected with the bottom of the inner side of protective shell 3, limiting block plate 415 is fixedly connected in the middle of the inner side of tapered groove 414, blocking valve block 416 is slidably connected in the middle of limiting block plate 415, auxiliary spring 417 is arranged on the outer side of blocking valve block 416 close to the inner cavity of heat insulation ring column 46.

[0031] On the basis of the above structure, in this embodiment, when defogging, the motor 411 is started, and the motor 411 will drive the fan blades 412 fixedly connected to the output end to rotate. The wind force generated by the rotation of the fan blades 412 will enter the interior of the watch core 5 provided on the inner side of the heat insulation ring column 46 through the heat dissipation holes opened in the middle of the upper surface of the air circulation chamber 47, pushing the heat emitted by the watch core 5 upward, and the air flow will drive the heat emitted by the watch core 5 to enter the inner cavity of the lower clamping ring 45 through the holes opened on the inner upper surface of the lower clamping ring 45, and flow along the plug block 44 clamped at one end of the top of the lower clamping ring 45 into the upper clamping ring 43. The air flow will flow through the holes opened on the inner lower surface of the upper clamping ring 43 to the observation glass 6 clamped between the lower clamping ring 45 and the upper clamping ring 43, so that the temperatures of the upper and lower surfaces of the observation glass 6 are kept constant, thereby drying the fog accumulated on the observation glass.

[0032] In addition, the wind force generated by the fan blades 412 can also pass through the heating rod 49 and enter the inner cavity of the heat-insulating ring column 46 connected to the top of the air circulation chamber 47 along the air pipe 413 fixedly connected at one end of the top of the air circulation chamber 47. When the air flow passes through the conical groove 414 in the process of flowing from bottom to top, the air pressure generated by the air flow will push the sealing valve block 416 to slide toward the inner side of the heat-insulating ring column 46 under the restriction of the limit block plate 415, so that the air hole opened on the limit block plate 415 opens during the sliding separation process of the sealing valve block 416, and the air flow enters the watch core 5 through the air hole to operate the watch core 5 The generated heat is drained. When the heat flows to the lower surface of the inner side of the lower clamping ring 45 driven by the air flow, the air flow flowing from the bottom to the top of the heat-insulating ring column 46 will flow into the lower clamping ring 45 through the support column block fixed on the top of the heat-insulating ring column 46 and the column cavity opened therein. After merging with the air flow flowing in from the hole opened in the lower surface of the inner side of the lower clamping ring 45, it will flow along the inner cavity of the lower clamping ring 45 through the inserting tube block 44 into the upper clamping ring 43, and then flow into the outer surface of the observation glass 6 through the hole opened in the lower surface of one end of the upper clamping ring 43, thereby drying the mist condensed on the surface of the observation glass 6.

[0033] The inside of the holes for air flow are all fixedly connected with dust-absorbing and breathable sponge filter layers.

[0034] During installation, the insulation ring column 46 is clamped to the top of the air flow circulation chamber 47, so that the bottom of the air supply pipe 413 fixedly connected to the bottom of the insulation ring column 46 is clamped to the top of the inner side of the air flow circulation chamber 47, and the watch core 5 is clamped to the middle of the inner side of the insulation ring column 46, and then the lower clamping ring 45 is clamped to the support column block fixedly connected to the top of the insulation ring column 46, and then the observation glass 6 is clamped to the inner side of the lower clamping ring 45, and then the upper clamping ring 43 is clamped to the upper surface of the lower clamping ring 45, so that the inserting tube block 44 fixedly connected to the bottom of the upper clamping ring 43 is clamped to the inner side of the lower clamping ring 45, so that the upper clamping ring 43 is clamped to the upper surface of the lower clamping ring 45, so that the upper clamping ring 43 clamps the outer edge of the upper surface of the observation glass 6, and then rotates the sealing cover 41, and the sealing cover 41 will be screwed to the top of the protective shell 3 through threads.

[0035] When cleaning dust, the fan blade 412 fixedly connected to the output end is driven by the motor 411 to produce reverse rotation. The suction generated by the reverse rotation will draw the dust connected to the upper surface of the observation glass 6 into the upper clamping ring 43 through the hole opened on the lower surface of one end of the upper clamping ring 43, and then into the lower clamping ring 45 through the insert block 44 fixedly connected to the bottom of the upper clamping ring 43, and then into the heat-insulating ring column 46 through the column cavity provided at the bottom of the lower clamping ring 45, and then into the dust collecting groove 48 through the air supply pipe 413 fixedly connected to the bottom of the heat-insulating ring column 46. When the dust enters the air circulation cavity 47, it is filtered by the filter ring net fixedly connected to the inner side of the top of the dust collecting groove 48 to prevent the dust from entering the inside of the watch movement and affecting the efficiency of the watch movement.

[0036] Among them, the middle part of the bottom end of the protective shell 3 is fixedly connected with the support column 2, and the middle part of the inner side of the support column 2 is provided with a self-inspection mechanism 7, which includes a pushing plate 71. The pushing plate 71 is located at the bottom of the motor 411. A lifting limit cavity is opened in the inner wall of the inner bottom end of the protective shell 3. The pushing plate 71 is located inside the lifting limit cavity and is slidably connected to the lifting limit cavity. The middle part of the bottom end of the pushing plate 71 is fixedly connected with a sliding rod 73, and the bottom end of the sliding rod 73 is fixedly connected with a piston column block 75. A guide cavity 74 is provided in the middle of the inner side of the support column rod 2, and the piston column block 75 is slidably connected to the guide cavity 74. A support column block 72 is fixedly connected to the middle of the left and right ends of the inner side of the lifting limit cavity. A guide hole is provided at the connection between the pushing plate 71 and the support column block 72. The pushing plate 71 is firmly slidably connected to the lifting limit cavity through the guide hole and the support column block 72. The top of the pushing plate 71 contacts the middle of the bottom end of the controller 410, and the bottom end of the support column rod 2 is fixedly connected to the main pipe 1.

[0037] On the basis of the above structure, when the main pipe body 1 is blocked at one end of the pipeline connected thereto during use, the water pressure generated by the flowing water during the flow process pushes the piston block 75, and the piston block 75 slides upward along the guide cavity 74 when subjected to the water pressure, thereby driving the sliding rod 73 at the top of the piston block 75 to slide to the top of the controller 410 under the limitation of the support block 72 and the guide hole, and the sliding plate 71 at the top of the sliding rod 73 slides to the top of the controller 410 under the limitation of the support block 72 and the guide hole, when the annular convex column fixed on the upper surface of the sliding plate 71 slides and is clamped to the controller 410 at the bottom of the controller 410, the alarm in the inner side of the controller 410 is triggered when the pressure sensor senses that the pressure is too large, the alarm emits an alarm sound, and the alarm sound reminds the staff, so that the staff can timely repair the blocked pipeline.

[0038] The heat generated by the internal mechanical operation of the meter core is guided to the inner and outer surfaces of the observation glass sheet on the water meter through the provided defogging mechanism, so that the temperature of the observation glass sheet is kept constant, and the observation glass mirror on the traditional water meter is prevented from forming water mist on the surface of the observation glass sheet due to a large temperature difference between the inside and outside in cold weather, affecting the observation line of sight. In the prior art, the internal core of the ultrasonic water meter generates a certain amount of heat when the weather is cold, and the observation glass sheet on the ultrasonic water meter generates mist due to a large temperature difference between the inside and outside, which is easily attached to the observation glass and affects the observation of the staff on the data displayed on the ultrasonic water meter. In the present scheme, the fan blade 412 at the output end of the motor 411 is rotated, the wind power generated by the rotation of the fan blade 412 passes through the heating rod 49 and enters the inner cavity of the heat insulation ring column 46 through the gas conveying pipe 413 fixedly connected to the top end of the airflow circulation cavity 47, and when the airflow flows from bottom to top, the air pressure generated by the airflow pushes the blocking valve block 416 to slide to the inner side of the heat insulation ring column 46 under the limitation of the limiting block plate 415, so that the air holes opened in the limiting block plate 415 are opened during the sliding separation of the blocking valve block 416, the airflow enters the meter core 5 through the air holes, and the heat generated by the operation of the meter core 5 is drained, and when the heat flows to the lower surface of the lower clamping ring 45 under the driving of the airflow, the airflow flowing from bottom to top in the inner side of the heat insulation ring column 46 flows into the lower clamping ring 45 through the column cavity in the inner side of the heat insulation ring column 46 and the column cavity in the inner side of the heat insulation ring column 46, and the airflow flowing from bottom to top in the inner side of the heat insulation ring column 46 flows into the lower clamping ring 45 through the column cavity in the inner side of the heat insulation ring column 46 and the column cavity in the inner side of the heat insulation ring column 46.

[0039] Although the embodiments of the present application have been shown and described, the specific embodiments are merely exemplary and are not to be construed as limiting the present application, and the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations to the embodiments without creative contribution after reading the specification, and as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A demisting device for an ultrasonic water meter, comprising a protective housing (3), characterized in that: The inner side of the protective shell (3) is provided with a demisting mechanism (4), and the demisting mechanism (4) includes an upper clamping ring (43), the upper clamping ring (43) is located at the top of the inner side of the protective shell (3), and the middle of the left and right ends and the middle of the front and rear sides of the bottom of the upper clamping ring (43) are fixedly connected with a pipe block (44), the bottom clamp of the upper clamping ring (43) is provided with a lower clamping ring (45), the pipe block (44) is connected through the upper surface of the lower clamping ring (45), the middle of the left and right ends and the middle of the front and rear sides of the lower surface of the lower clamping ring (45) are fixedly connected with a support hoop column block, the inner side of the support hoop column block is provided with a column cavity, the bottom of the support hoop column block is fixedly connected with a heat insulation ring column (46), the column cavity is connected through the lower clamping ring (45) and the heat insulation ring column (46), the heat insulation ring column ( An air pipe (413) is fixedly connected to the middle of the left and right ends of the bottom and the middle of the front and rear sides. An air circulation chamber (47) is provided below the heat-insulating ring column (46). The air pipe (413) is connected to the air circulation chamber (47) through the air circulation chamber (47). A fan blade (412) is rotatably connected to the middle of the inner side of the air circulation chamber (47). A motor (411) is fixedly connected to the middle of the bottom end of the air circulation chamber (47). The bottom end of the fan blade (412) passes through the middle of the air circulation chamber (47) and is fixedly connected to the output end of the motor (411). A dust collection groove (48) is provided on the inner side of the air circulation chamber (47) at a position directly below the air pipe (413). A heating rod (49) is provided in the middle of the distance between the fan blade (412) and the dust collection groove (48).

2. The ultrasonic water meter demisting device according to claim 1, characterized in that: A blocking cover (41) is detachably connected to the upper side of the outer side of the protective shell (3) through a thread, and a mounting clamp groove (418) is provided on the upper surface of the blocking cover (41), and the inner clamp of the mounting clamp groove (418) is provided with a protective cover (42), and an axle block is fixedly connected to both the left and right ends of the rear side of the protective cover (42), and an axle block slot is provided at both the left and right ends of the rear side of the mounting clamp groove (418), and the protective cover (42) is rotatably connected to the mounting clamp groove (418) through the provided axle block and the axle block slot, and an observation glass (6) is provided on the inner clamp between the upper clamp ring (43) and the lower clamp ring (45).

3. The ultrasonic water meter demisting device according to claim 1, characterized in that: A watch movement (5) is installed in the middle of the upper surface of the air circulation chamber (47), two conical grooves (414) are provided at the left and right ends and the middle of the front and rear sides of the inner surface of the heat-insulating ring column (46), a controller (410) is provided on the outside of the motor (411), and the bottom of the controller (410) is fixedly connected to the bottom of the inner side of the protective shell (3).

4. The ultrasonic water meter demisting device according to claim 3, characterized in that: A limiting block plate (415) is fixedly connected to the middle of the inner side of the conical groove (414), a blocking valve block (416) is slidably connected to the middle of the limiting block plate (415), and an auxiliary spring (417) is provided on the outer side of the blocking valve block (416) near the inner cavity of the heat-insulating ring column (46).

5. The ultrasonic water meter demisting device according to claim 1, characterized in that: The middle of the bottom end of the protective shell (3) is fixedly connected to a support column (2), and the middle of the inner side of the support column (2) is provided with a self-inspection mechanism (7), and the self-inspection mechanism (7) includes a pushing plate (71), and the pushing plate (71) is located at the bottom of the motor (411). A lifting limit cavity is provided in the inner wall of the inner bottom end of the protective shell (3), and the pushing plate (71) is located inside the lifting limit cavity and is slidably connected to the lifting limit cavity. The middle of the bottom end of the pushing plate (71) is fixedly connected to a sliding rod (73), and the bottom end of the sliding rod (73) is fixedly connected to a piston column block (75). A guide cavity (74) is provided in the middle of the inner side of the support column (2), and the piston column block (75) is slidably connected to the guide cavity (74).

6. The demisting device for an ultrasonic water meter according to claim 5, characterized in that: A support column block (72) is fixedly connected to the middle of the left and right ends of the inner side of the lifting limit cavity, and a guide hole is provided at the connection between the pushing plate (71) and the support column block (72). The pushing plate (71) is firmly connected to the lifting limit cavity through the guide hole and the support column block (72). The upper part of the pushing plate (71) contacts the middle of the bottom end of the controller (410), and the bottom end of the support column rod (2) is fixedly connected to the main pipe body (1).

7. The ultrasonic water meter demisting device according to claim 1, characterized in that: A plurality of holes are provided on the lower surface of the inner side of the upper clamping ring (43) and the upper surface of the inner side of the lower clamping ring (45).

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