Rotary wing type flange cold water meter

Abstract

The utility model relates to the technical field of water meters, in particular to a rotary wing type flange cold water meter which is easy to install, does not need to operate tools for many times, is easy to operate and widens the application range of the water meter. Comprising a water meter shell, the top of the water meter shell is in threaded connection with an end socket cover, the top end of the end socket cover is movably connected with a cover plate, a metering assembly is arranged in the water meter shell, a direct-current generator is installed at the bottom of the end socket cover, the input end of the direct-current generator is connected with a rotating shaft, and a plurality of shifting pieces are evenly installed on the outer wall of the rotating shaft; the left end of the water meter shell is connected with a water inlet pipe, the right end of the water meter shell is connected with a water outlet pipe, the water inlet pipe and the water outlet pipe are connected with the water pipe through connecting assemblies, a filtering assembly is installed in the water meter shell, a supporting assembly is installed at the bottom of the water meter shell, and a heat preservation assembly is installed on the outer wall of the water meter shell.

Description

Technical Field

[0001] The utility model relates to the technical field of water meters, in particular to a rotary vane flange cold water meter. Background Art

[0002] The rotary vane water meter is suitable for measuring the total amount of unidirectional water flow in small-diameter pipes. For example, for measuring the water consumption of a household with a diameter of 15mm or 20mm, this water meter is mainly composed of a housing, an impeller measuring mechanism, a speed reduction mechanism, and an indicator, and has the characteristics of a simple structure. A rotary vane wet cold water meter proposed in the prior art publication number CN216593606U includes a housing, the inner surface of the housing is provided with a filter screen, the upper inner wall of the housing is threadedly connected with a connector, the upper outer surface of the connector is threadedly connected with a threaded member, the upper end of the threaded member is fixedly connected with a counting box, the upper end of the counting box is fixedly connected with a pointer shell, the upper surface of the pointer shell is fixedly connected with a glass cover, the middle part of the glass cover is provided with a damping shaft, the bottom end of the damping shaft is fixedly connected with a connecting rod, and the upper surface of the connecting rod is provided with absorbent cotton. However, the installation steps are complicated, the installation time is long, and maintenance is required many times after installation, which is inconvenient to use. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a rotary vane flange cold water meter which is simple to install, does not require multiple operation tools, is simple to operate, and improves the applicable scope of the water meter.

[0004] The utility model discloses a rotary-wing flange cold-water water meter, comprising a water meter case, a head cover being threadedly connected to the top of the water meter case, a cover plate being movably connected to the top of the head cover, a metering assembly being arranged inside the water meter case, a water inlet pipe being connected to the left end of the water meter case, a water outlet pipe being connected to the right end of the water meter case, the water inlet pipe and the water outlet pipe being connected to the water pipe through a connecting assembly, a filtering assembly being installed inside the water meter case, a supporting assembly being installed at the bottom of the water meter case, and a heat-insulating assembly being installed on the outer wall of the water meter case; the water inlet pipe and the water outlet pipe being installed on the water pipe through the connecting assembly, the installation is convenient, the tools do not need to be operated multiple times, the operation is simple, the water meter case can be supported and fixed by the supporting assembly, the water hammer phenomenon is prevented from causing the water meter case to shake, the stability during use is ensured, the impurities in the water are filtered by the filtering assembly, the impurities are not easily introduced into the water meter, the internal structure is protected, and the heat-insulating assembly can keep the inside of the water meter warm, and the inside of the water meter is prevented from freezing when the weather is cold.

[0005] Preferably, a DC generator is installed at the bottom of the head cover, the input end of the DC generator is connected to a rotating shaft, and a plurality of paddles are evenly installed on the outer wall of the rotating shaft; water flows into the water meter housing through the water inlet pipe, pushing the paddles to drive the rotating shaft to rotate, thereby reducing the water flow rate, making it less likely that the water meter pressure will be too high and cause damage to the water meter, thereby increasing the service life.

[0006] Preferably, the insulation component includes an electric heating jacket, which is mounted on the outside of the water meter housing and electrically connected to the output end of the DC generator; the inside of the water meter housing is insulated by the electric heating jacket to prevent the inside of the water meter from freezing when the weather is cold, thereby improving the application range of the water meter.

[0007] Preferably, the filter assembly includes a filter cartridge, a retaining frame and a limit block. The top of the filter cartridge is in contact and connected with the bottom of the head cover. The limit block is installed on the lower outer wall of the filter cartridge. The retaining frame is fixedly installed on the inner wall of the water meter housing, and the limit block is in contact with the retaining frame. After the head cover is screwed onto the top of the water meter housing, the head cover presses the top of the filter cartridge so that the limit block is clamped on the top of the retaining frame to filter impurities in the water, making it difficult for impurities to enter the water meter, thereby protecting the internal structure.

[0008] Preferably, a plurality of cleaning racks are evenly installed axially at the bottom of the rotating shaft, the cleaning racks are in contact with the inner wall of the filter cartridge, a cleaning brush is provided on the cleaning rack, a sewage outlet is provided at the bottom of the water meter housing, and a cleaning plug is installed on the sewage outlet; when the rotating shaft rotates, the cleaning rack is driven to rotate on the filter cartridge to clean the impurities attached to the filter cartridge, and the impurities can be discharged at the sewage outlet by opening the cleaning plug.

[0009] Preferably, the connecting assembly includes a flange, a connecting sleeve, a sealing ring, a nut, a bearing, a screw rod and an adjusting knob. The end of the water outlet pipe of the water inlet pipe is connected to the flange, the middle of the flange is installed with a sealing ring, the outer wall of the flange is provided with a slope, the connecting sleeve is sleeved on the flange, the interior of the connecting sleeve is provided with a slope matching the slope of the flange, extension plates are provided at both ends of the connecting sleeve, the nut is movably installed in the middle of the rear end extension plate, the bearing is movably installed in the middle of the front end extension plate, the screw rod is rotatably installed on the bearing, the screw rod is threadedly connected to the nut, and the front end of the screw rod is connected with an adjusting knob; the flange is aligning the flange with the water pipe flange, the connecting sleeve is sleeved on the flange and the water pipe flange, the adjusting knob is turned to drive the screw rod to rotate, so that the nut moves on the screw rod, and the two extension plates are tightened. The water pipe flange and the flange are firmly connected by coordinating the slope of the connecting sleeve with the slope of the flange, the sealing can be improved by the sealing ring, the installation is convenient, there is no need to operate tools multiple times, and the operation is simple.

[0010] Preferably, the supporting assembly includes two supporting tubes, two telescopic plates, a fixed plate, a rotating rod, two gears, a driving box and a knob, the two supporting tubes are fixedly mounted on the left and right ends of the bottom of the water meter case, the telescopic plate is slidably mounted inside the supporting tubes, the bottom end of the telescopic plate is fixedly connected to the top end of the fixed plate, a fixing hole is arranged on the fixed plate, a rectangular groove is opened in the middle of the telescopic plate, and teeth are arranged on one side of the rectangular groove, the rotating rod is rotatably mounted between the two supporting tubes, a gear is fixedly mounted on the outer wall of the rotating rod, the gear is located in the rectangular groove, and the gear is meshed with the teeth, the input end of the rotating rod is connected to the output end of the driving box, and the input end of the driving box is connected to the knob; after the water meter case is connected to the water pipe, the rotating knob is turned to drive the rotating rod to rotate through the driving box, and the rotating rod drives the gear to rotate to push the telescopic plate to extend out of the supporting tube, and the water meter case is fixedly supported by the fixed plate to prevent the water hammer phenomenon from causing the water meter case to shake, thereby ensuring stability during use.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the water inlet pipe and the water outlet pipe are installed on the water pipe through the connecting assembly, which is convenient for installation, does not require multiple operation tools, and is simple to operate; the water meter case can be supported and fixed by the supporting assembly to prevent the water hammer phenomenon from causing the water meter case to shake, thereby ensuring stability during use; impurities in the water are filtered through the filtering assembly, which makes it difficult for impurities to enter the water meter and protects the internal structure; the insulation assembly can insulate the inside of the water meter to prevent the inside of the water meter from freezing when the weather is cold. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a front structural schematic diagram of the utility model;

[0014] Figure 3 It is a right view structural schematic diagram of the utility model;

[0015] Figure 4 It is a front cross-sectional structural schematic diagram of the utility model;

[0016] Figure 5 It is a left-side cross-sectional structural schematic diagram of the utility model;

[0017] Markings in the attached figure: 1. water meter case; 2. cover plate; 3. head cover; 4. water inlet pipe; 5. water outlet pipe; 6. DC generator; 7. rotating shaft; 8. paddle; 9. filter cartridge; 10. retaining frame; 11. limiting block; 12. cleaning frame; 13. electric heating sleeve; 14. flange; 15. connecting sleeve; 16. sealing ring; 17. extension plate; 18. nut; 19. bearing; 20. screw; 21. adjusting knob; 22. supporting cylinder; 23. telescopic plate; 24. fixing plate; 25. rotating rod; 26. gear; 27. driving box; 28. knob. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Example

[0019] like Figures 1 to 4 As shown, the top of the water meter housing 1 is threadedly connected with a head cover 3, the top of the head cover 3 is movably connected with a cover plate 2, a metering component is arranged inside the water meter housing 1, a water inlet pipe 4 is connected to the left end of the water meter housing 1, a water outlet pipe 5 is connected to the right end of the water meter housing 1, a flange 14 is connected to the end of the water outlet pipe 5 of the water inlet pipe 4, a sealing ring 16 is installed in the middle of the flange 14, the outer wall of the flange 14 is provided with a slope, a connecting sleeve 15 is sleeved on the flange 14, the interior of the connecting sleeve 15 is provided with a slope matching the slope of the flange 14, and two ends of the connecting sleeve 15 are provided with Extension plate 17, nut 18 is movably mounted in the middle of the rear extension plate 17, bearing 19 is movably mounted in the middle of the front extension plate 17, screw rod 20 is rotatably mounted on bearing 19, screw rod 20 is threadedly connected with nut 18, front end of screw rod 20 is connected with adjusting knob 21, DC generator 6 is mounted at the bottom of head cover 3, input end of DC generator 6 is connected with rotating shaft 7, multiple paddles 8 are evenly mounted on the outer wall of rotating shaft 7, electric heating sleeve 13 is sleeved on the outside of water meter housing 1, and electric heating sleeve 13 is electrically connected with output end of DC generator 6;

[0020] Align the flange 14 with the water pipe flange, and put the connecting sleeve 15 on the flange 14 and the water pipe flange. Turn the adjusting knob 21 to drive the screw rod 20 to rotate, so that the nut 18 moves on the screw rod 20, and tighten the two extension plates 17. The slope of the connecting sleeve 15 cooperates with the slope of the flange 14 to make the water pipe flange and the flange 14 firmly connected. The sealing ring 16 can improve the sealing performance, which is convenient for installation. It does not need to operate tools many times, and the operation is simple. Water flows into the water meter housing 1 through the water inlet pipe 4, and the paddle 8 is pushed to drive the rotating shaft 7 to rotate, so that the water flow rate becomes smaller, and it is not easy to cause the water meter to be damaged due to excessive pressure. The service life is improved. The inside of the water meter housing 1 is insulated by the electric heating sleeve 13 to avoid freezing inside the water meter when the weather is cold, thereby improving the application range of the water meter. Example

[0021] like Figure 1 , Figure 4 and Figure 5As shown, on the basis of Example 1, the top of the filter cartridge 9 is also connected in contact with the bottom of the head cover 3, a limit block 11 is installed on the lower outer wall of the filter cartridge 9, a retaining frame 10 is fixedly installed on the inner wall of the water meter housing 1, and the limit block 11 is in contact with the retaining frame 10. A plurality of cleaning frames 12 are evenly installed axially at the bottom of the rotating shaft 7, and the cleaning frames 12 are in contact with the inner wall of the filter cartridge 9. A cleaning brush is provided on the cleaning frame 12. A sewage outlet is provided at the bottom of the water meter housing 1, and a cleaning plug is installed on the sewage outlet. Two support cylinders 22 are fixedly installed at the bottom of the water meter housing 1 At the left and right ends, the telescopic plate 23 is slidably installed inside the support tube 22, the bottom end of the telescopic plate 23 is fixedly connected to the top end of the fixed plate 24, a fixing hole is provided on the fixed plate 24, a rectangular groove is provided in the middle of the telescopic plate 23, and teeth are provided on one side of the rectangular groove. The rotating rod 25 is rotatably installed between the two support tubes 22, and a gear 26 is fixedly installed on the outer wall of the rotating rod 25. The gear 26 is located in the rectangular groove, and the gear 26 is meshed with the teeth. The input end of the rotating rod 25 is connected to the output end of the driving box 27, and the input end of the driving box 27 is connected to the knob 28;

[0022] After the end cover 3 is screwed on the top of the water meter housing 1, the end cover 3 presses the top of the filter cartridge 9 so that the limit block 11 is clamped on the top of the retaining frame 10 to filter impurities in the water, making it difficult for impurities to enter the water meter and protecting the internal structure. When the rotating shaft 7 rotates, it drives the cleaning frame 12 to rotate on the filter cartridge 9 to clean the impurities attached to the filter cartridge 9. Opening the cleaning plug can discharge the impurities at the sewage outlet. After the water meter housing 1 is connected to the water pipe, the knob 28 is turned to drive the rotating rod 25 to rotate through the driving box 27. The rotating rod 25 drives the gear 26 to rotate and push the telescopic plate 23 to extend out of the support tube 22. The water meter housing 1 is fixedly supported by the fixing plate 24 to prevent the water hammer phenomenon from causing the water meter housing 1 to shake, thereby ensuring stability during use.

[0023] like Figures 1 to 5As shown, a rotary vane flange cold water meter of the utility model, when working, align the flange 14 with the water pipe flange, the connecting sleeve 15 is sleeved on the flange 14 and the water pipe flange, the adjusting knob 21 is turned to drive the screw rod 20 to rotate, so that the nut 18 moves on the screw rod 20, and the two extension plates 17 are tightened. The slope of the connecting sleeve 15 is matched with the slope of the flange 14 to make the water pipe flange and the flange 14 firmly connected, and the knob 28 is turned to drive the rotating rod 25 to rotate through the driving box 27, and the rotating rod 25 drives the gear 26 to rotate and push the telescopic plate 23 in the support tube 22 The water meter housing 1 is extended out and fixedly supported by the fixing plate 24. After the head cover 3 is screwed on the top of the water meter housing 1, the head cover 3 presses the top of the filter cartridge 9, so that the limit block 11 is clamped on the top of the retaining frame 10, and the impurities in the water are filtered, and it is not easy for the impurities to enter the water meter. The water flow is input into the water meter housing 1 through the water inlet pipe 4, and the paddle 8 is pushed to drive the rotating shaft 7 to rotate, so that the water flow velocity becomes smaller, and it is not easy for the water meter to be damaged due to excessive pressure. The inside of the water meter housing 1 is insulated by the electric heating sleeve 13 to prevent the inside of the water meter from freezing when the weather is cold.

[0024] The DC generator 6 and the drive box 27 of the rotary vane flange cold water meter of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative work by technicians in this field.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A rotary vane flange cold water meter, characterized in that: The water meter housing (1) comprises a water meter housing (1), wherein the top of the water meter housing (1) is threadedly connected to a head cover (3), the top of the head cover (3) is movably connected to a cover plate (2), a metering component is arranged inside the water meter housing (1), a water inlet pipe (4) is connected to the left end of the water meter housing (1), a water outlet pipe (5) is connected to the right end of the water meter housing (1), the water inlet pipe (4) and the water outlet pipe (5) are connected to the water pipe via a connecting component, a filtering component is installed inside the water meter housing (1), a supporting component is installed at the bottom of the water meter housing (1), and a heat preservation component is installed on the outer wall of the water meter housing (1).

2. A rotary vane flange cold water meter as claimed in claim 1, characterized in that: A DC generator (6) is installed at the bottom of the head cover (3); an input end of the DC generator (6) is connected to a rotating shaft (7); and a plurality of paddles (8) are evenly installed on the outer wall of the rotating shaft (7).

3. A rotary vane flange cold water meter as claimed in claim 2, characterized in that: The heat preservation component comprises an electric heating sleeve (13), which is sleeved on the outside of the water meter housing (1), and the electric heating sleeve (13) is electrically connected to the output end of the DC generator (6).

4. A rotary vane flange cold water meter as claimed in claim 1, characterized in that: The filter assembly comprises a filter cartridge (9), a retaining frame (10) and a limiting block (11); the top of the filter cartridge (9) is in contact with and connected to the bottom of the head cover (3); the limiting block (11) is installed on the lower outer wall of the filter cartridge (9); the retaining frame (10) is fixedly installed on the inner wall of the water meter housing (1); and the limiting block (11) is in contact with the retaining frame (10).

5. A rotary vane flange cold water meter as claimed in claim 2, characterized in that: A plurality of cleaning racks (12) are evenly mounted axially at the bottom of the rotating shaft (7), the cleaning racks (12) are in contact with the inner wall of the filter cartridge (9), a cleaning brush is disposed on the cleaning rack (12), a sewage outlet is disposed at the bottom of the water meter housing (1), and a cleaning plug is mounted on the sewage outlet.

6. A rotary vane flange cold water meter as claimed in claim 1, characterized in that: The connection assembly comprises a flange (14), a connection sleeve (15), a sealing ring (16), a nut (18), a bearing (19), a screw (20) and an adjusting knob (21). The end of the water outlet pipe (5) of the water inlet pipe (4) is connected to the flange (14). The sealing ring (16) is installed in the middle of the flange (14). The outer wall of the flange (14) is provided with a slope. The connection sleeve (15) is sleeved on the flange (14). The interior of the connection sleeve (15) is provided with a slope matching the slope of the flange (14). Extension plates (17) are provided at both ends of the connection sleeve (15). The nut (18) is movably installed in the middle of the rear end extension plate (17). The bearing (19) is movably installed in the middle of the front end extension plate (17). The screw (20) is rotatably installed on the bearing (19). The screw (20) is threadedly connected to the nut (18). The front end of the screw (20) is connected to the adjusting knob (21).

7. A rotary vane flange cold water meter as claimed in claim 1, characterized in that: The support assembly comprises two support tubes (22), two telescopic plates (23), a fixed plate (24), a rotating rod (25), two gears (26), a drive box (27) and a knob (28). The two support tubes (22) are fixedly mounted at the left and right ends of the bottom of the water meter housing (1). The telescopic plates (23) are slidably mounted inside the support tubes (22). The bottom end of the telescopic plates (23) is fixedly connected to the top end of the fixed plate (24). The fixed plate (24) is provided with a fixing hole. A rectangular groove is provided in the middle of the telescopic plates (23). One side of the rectangular groove is provided with teeth. The rotating rod (25) is rotatably mounted between the two support tubes (22). A gear (26) is fixedly mounted on the outer wall of the rotating rod (25). The gear (26) is located in the rectangular groove and meshes with the teeth. The input end of the rotating rod (25) is connected to the output end of the drive box (27). The input end of the drive box (27) is connected to the knob (28).

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