Metering water meter metal gear box

Abstract

The utility model relates to the technical field of water meter accessories, in particular to a metal gear box of a metering water meter, which comprises a water meter casing, a detection cover, a metal gear box and a glass protective cover. A detection cover is arranged in the water meter sleeve shell in a sleeved mode, a metal gear box is installed on the top of the detection cover through a butt joint flange and butt joint screws, a rotating shaft is arranged in the detection cover, and detection impellers are installed on the outer side of the rotating shaft at equal intervals through screws. The top of the rotating shaft is sleeved with a detection gear, a stable shaft sleeve is welded to the bottom in the detection cover, the bottom end of the rotating shaft is located in the stable shaft sleeve, and a dial plate is installed on the top of the metal gear box through a screw. The metal gear box of the metering water meter enables the rotating shaft and the detection impeller to be better in stability and not prone to shaking after being used for a long time, the detection precision is improved, the whole structure is convenient to install, disassemble and overhaul, and manpower and material resources are saved.

Description

Technical Field

[0001] This utility model relates to the field of water meter accessories technology, specifically to a metal gear box for a water meter. Background Technology

[0002] The working principle of a water meter is mainly based on measuring the water volume by the rotational or vortex frequency of water flowing through the measuring device. When water enters the flow meter through the inlet, it flows through an independently rotating shaft, causing the rotor in the measuring mechanism to rotate. The measured rotation angle or speed is proportional to the flow rate, and thus the amount of water flowing can be calculated. The rotor's rotation drives the pointer on the dial to rotate through a gear set in a metal gearbox, thereby achieving measurement.

[0003] The existing metal gearbox of water meters cannot improve the stability of the rotating shaft and the detection impeller. After long-term use, it is prone to shaking, which reduces the detection accuracy. In addition, the overall structure is not convenient for installation and disassembly, making maintenance inconvenient and time-consuming. Summary of the Invention

[0004] To address the problems in the existing technology, this utility model provides a metal gearbox for water meters. The metal gearbox improves the stability of the rotating shaft and the detection impeller, making it less prone to shaking after long-term use, thus improving the detection accuracy. Furthermore, the overall structure is easy to install and disassemble, facilitating maintenance and saving manpower and resources.

[0005] The technical solution adopted by this utility model to solve its technical problem is a water meter metal gear box, including a water meter casing, a detection cover, a metal gear box and a glass protective cover. The two sides of the water meter casing are respectively connected to an inlet pipe and an outlet pipe. The detection cover is installed inside the water meter casing, and the top of the detection cover is installed with a metal gear box through a connecting flange and connecting screws. A rotating shaft is provided inside the detection cover, and detection impellers are installed at equal intervals on the outside of the rotating shaft through screws.

[0006] A detection gear is fitted on the top of the rotating shaft, a stabilizing bushing is welded to the bottom of the detection cover and the bottom end of the rotating shaft is located inside the stabilizing bushing, a dial is installed on the top of the metal gear box by screws, and a glass protective cover is engaged on the top of the water meter housing and above the dial.

[0007] By adopting the above technical solution, the metal gear box of the water meter can improve the stability of the rotating shaft and the detection impeller, making it less prone to shaking after long-term use, thus improving the detection accuracy. In addition, the overall structure is easy to install and disassemble, facilitating maintenance and saving manpower and resources.

[0008] Specifically, the top outer side of the water meter casing is provided with an external thread, and the inner wall of the glass protective cover is provided with an internal thread corresponding to the external thread.

[0009] Specifically, the bottom periphery of the metal gear box is provided with a mating screw hole facing the mating screw.

[0010] By adopting the above technical solution, the mating screw holes facilitate the screwing of the mating flange into the mating screw holes, thereby achieving mutual fixation of the metal gear box and the inspection cover.

[0011] Specifically, a insertion hole is provided at the bottom axis of the metal gear box, and the detection gear passes through the insertion hole and meshes with the gear set inside the metal gear box.

[0012] Specifically, both the inlet and outlet pipes are equipped with sleeve interfaces at their ends, and the outer side of the detection cover has inlets at equal intervals.

[0013] By adopting the above technical solution, the sleeves at the ends of the inlet and outlet pipes can be easily connected to the water delivery pipe for use. Water flows into the detection hood from the inlet, driving the detection impeller to rotate.

[0014] The beneficial effects of this utility model are:

[0015] The present invention relates to a metal gear box for a water meter. The sleeve at the end of the inlet and outlet pipes facilitates connection to the water delivery pipe. Water flows into the detection cover from the inlet, driving the detection impeller to rotate. Since the detection gear meshes with the gear set inside the metal gear box, it drives the pointer inside the dial to rotate.

[0016] The present invention relates to a metal gearbox for a water meter. The detection cover is fixed to the bottom of the metal gearbox by a mating flange and mating screws, which can improve the stability of the rotating shaft and the detection impeller, making it less prone to shaking after long-term use and improving the detection accuracy. The top of the water meter casing is fitted with a glass protective cover to protect the dial from impacts. The overall structure is easy to install and disassemble, convenient for maintenance, and saves manpower and resources. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a bottom view of the present invention;

[0020] Figure 3 This is a schematic diagram of the stabilizing bushing structure of this utility model.

[0021] In the diagram: 1. Water meter housing; 2. External thread; 3. Inlet pipe; 4. Outlet pipe; 5. Inlet; 6. Detection cover; 7. Detection impeller; 8. Rotating shaft; 9. Detection gear; 10. Metal gearbox; 11. Dial; 12. Glass protective cover; 13. Connecting flange; 14. Connecting screw; 15. Insertion hole; 16. Connecting screw hole; 17. Stabilizing bushing. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] The metal gearbox in the water meter improves the stability of the rotating shaft 8 and the detection impeller 7, preventing them from shaking after prolonged use and enhancing detection accuracy. Furthermore, the overall structure facilitates installation and disassembly, simplifying maintenance and saving manpower and resources. Figure 1-3 As shown, the present invention provides a water meter metal gearbox, comprising a water meter housing 1, a detection cover 6, a metal gearbox 10, and a glass protective cover 12. The water meter housing 1 has an inlet pipe 3 and an outlet pipe 4 connected to its two sides respectively. The detection cover 6 is fitted inside the water meter housing 1, and the metal gearbox 10 is mounted on the top of the detection cover 6 via a connecting flange 13 and connecting screws 14. A rotating shaft 8 is provided inside the detection cover 6, and detection impellers 7 are mounted at equal intervals on the outside of the rotating shaft 8 via screws.

[0024] The top of the rotating shaft 8 is fitted with a detection gear 9. The bottom of the detection cover 6 is welded with a stabilizing bushing 17 and the bottom end of the rotating shaft 8 is located inside the stabilizing bushing 17. The top of the metal gear box 10 is fitted with a dial 11 by screws. The top of the water meter housing 1 and the upper end of the dial 11 are fitted with a glass protective cover 12.

[0025] When in use, the metal gear box of the water meter can improve the stability of the rotating shaft 8 and the detection impeller 7, making it less prone to shaking after long-term use, thus improving the detection accuracy. In addition, the overall structure is easy to install and disassemble, making maintenance convenient and saving manpower and resources.

[0026] For example, such as Figure 1 As shown, the present invention also includes an external thread 2 on the outer side of the top of the water meter housing 1 and an internal thread corresponding to the external thread 2 on the inner wall of the glass protective cover 12.

[0027] When in use, the external thread 2 and the corresponding internal thread make it easy to screw the glass protective cover 12 onto the top of the water meter housing 1, which is convenient for installation and disassembly.

[0028] For example, such as Figure 1 , 2As shown, the present invention also includes a mating screw hole 16 provided on the bottom periphery of the metal gear box 10 and directly opposite the mating screw 14.

[0029] In use, the mating screw hole 16 facilitates the screwing of the mating screw 14 on the mating flange 13 into the mating screw hole 16 to fix the metal gear box 10 and the detection cover 6 to each other.

[0030] For example, such as Figure 1 , 2 As shown, the present invention also includes a plug hole 15 provided at the bottom axis of the metal gear box 10, and the detection gear 9 passes through the plug hole 15 and meshes with the gear set inside the metal gear box 10.

[0031] When in use, the detection gear 9 meshes with the gear set inside the metal gearbox 10, thereby driving the pointer inside the dial 11 to rotate.

[0032] For example, such as Figure 1 As shown, the present invention also includes a sleeve interface at the end of the water inlet pipe 3 and the water outlet pipe 4, and water inlets 5 are provided at equal intervals on the outer side of the detection cover 6.

[0033] When in use, the sleeves at the ends of the inlet pipe 3 and the outlet pipe 4 are convenient to be connected to the water delivery pipe. The water flows into the detection cover 6 from the inlet 5, driving the detection impeller 7 to rotate.

[0034] When in use, the inlet pipe 3 and outlet pipe 4 are connected to the water delivery pipe by means of the sleeve interface at the end. Water flows into the detection cover 6 from the inlet 5 and drives the detection impeller 7 to rotate. Since the detection gear 9 and the gear set in the metal gear box 10 mesh, the pointer in the dial 11 rotates.

[0035] Since the detection cover 6 is fixed to the bottom of the metal gear box 10 by the docking flange 13 and docking screws 14, the stability of the rotating shaft 8 and the detection impeller 7 can be improved, and they are less likely to shake after long-term use, thus improving the accuracy of detection.

[0036] The glass protective cover 12 is snapped onto the top of the water meter casing 1 to prevent the dial 11 from being bumped. The overall structure is easy to install and disassemble, convenient for maintenance, and saves manpower and resources.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A meter water meter metal gear box characterized by, Including water meter cover (1), detection cover (6), metal gear box (10) and glass protective cover (12), the water meter cover (1) is communicated with water inlet pipe (3) and water outlet pipe (4) respectively on both sides, the water meter cover (1) is set in detection cover (6) and the top of detection cover (6) is installed with metal gear box (10) through butt flange (13) and butt screw (14), the detection cover (6) is provided with rotating shaft (8) and the outer side of rotating shaft (8) is installed with detection impeller (7) at equal distance through screw, The top of rotating shaft (8) is sleeved with detection gear (9), the bottom of detection cover (6) is welded with stable shaft sleeve (17) and the bottom end of rotating shaft (8) is located in stable shaft sleeve (17), the top of metal gear box (10) is installed with dial (11) through screw, the top of water meter cover (1) and the upper end of dial (11) are clamped with glass protective cover (12).

2. A metal gear box for a water meter according to claim 1, wherein, The outer side of the top end of the water meter cover (1) is provided with external thread (2), and the inner wall of the glass protective cover (12) is provided with internal thread corresponding to the external thread (2).

3. The metal gear box of a water meter according to claim 1, wherein, The bottom of the metal gear box (10) is provided with a butt screw hole (16) opposite to the butt screw (14).

4. The metal gear box of a water meter according to claim 1, wherein, The bottom of the metal gear box (10) is provided with a butt screw hole (16) opposite to the butt screw (14).

5. The metal gear box of a water meter according to claim 1, wherein, The end of the water inlet pipe (3) and the water outlet pipe (4) is provided with a sleeve interface, and the outer side of the detection cover (6) is provided with an inlet (5) at equal distance.

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