Direct drinking water meter with remote transmission function

Abstract

The direct drinking water meter with the remote transmission function comprises a shell, a metering mechanism and a switching mechanism, a first cavity and a second cavity which are communicated with each other are formed in the shell, the top of the first cavity and the top of the second cavity are open, and a first installation opening and a second installation opening are formed in the top of the first cavity and the top of the second cavity respectively; the metering mechanism comprises an impeller assembly installed in the second cavity and a counter installed on the second installation opening and connected with the impeller assembly. The switch mechanism comprises a valve assembly installed in the first cavity and a control box installed on the first installation opening, and a driving motor connected with the valve assembly and a wireless communication module used for achieving remote signal transmission are arranged in the control box. The direct drinking water meter with the remote transmission function is compact in structure, low in production cost and maintenance cost, good in use reliability, high in stability, capable of achieving remote monitoring and control, good in use effect and wide in application range.

Description

Technical Field

[0001] The utility model relates to a water meter, in particular to a direct drinking water meter with a remote transmission function. Background Art

[0002] A direct drinking water meter is an advanced metering device designed specifically for drinking water systems such as pure water and direct drinking water. Such water meters integrate electronic technology, wireless communication technology, and Internet of Things technology.

[0003] The direct drinking water meter controls the pipeline through a valve. Affected by the structure, the existing direct drinking water meters are very inconvenient to install and disassemble, and the maintenance cost is relatively high. Content of the Utility Model

[0004] Technical Problems to be Solved

[0005] The technical problem to be solved by the utility model is to provide a direct drinking water meter with a remote transmission function, which has a compact structure, is convenient and labor-saving to load and unload, has a low maintenance cost, and has a good use effect.

[0006] Technical Solutions for Solving the Problems

[0007] The utility model provides a direct drinking water meter with a remote transmission function, which comprises:

[0008] A housing 1, as a support and installation carrier, is formed with a first chamber 1a and a second chamber 1b communicating with each other therein. The tops of the first chamber 1a and the second chamber 1b are open and respectively form a first installation opening 11 and a second installation opening 12. The side wall of the housing 1 is provided with a water inlet 101 communicating with the first chamber 1a and a water outlet 102 communicating with the second chamber 1b;

[0009] A metering mechanism 5, including an impeller assembly installed in the second chamber 1b and a counter installed on the second installation opening 12 and connected to the impeller assembly;

[0010] A switching mechanism, including a valve assembly 4 installed in the first chamber 1a and a control box 3 installed on the first installation opening 11. The control box 3 is provided with a driving motor connected to the valve assembly 4 and a wireless communication module for realizing remote signal transmission.

[0011] Further, the valve assembly 4 includes a valve body 41 installed in the first chamber 1a. A first sealing strip 46 is provided between the side wall of the valve body 41 and the inner wall of the first chamber 1a, dividing the first chamber into a water inlet chamber and a water outlet chamber. An outer pressure cover 45 that contacts and presses the valve body 41 is fixed on the first mounting port 11. A valve chamber is formed inside the valve body 41. A water inlet hole and a water outlet hole are respectively provided on both sides of the valve chamber. A valve ball 43 is rotatably installed in the valve chamber. A valve rod 44 is provided on the valve ball 43. The valve rod 44 serves as a control end and is connected to the drive motor after passing through the outer pressure cover 45.

[0012] Further, the inner wall of the first chamber 1a is provided with a first strip-shaped groove 130, and the side wall of the valve body 41 is provided with a first strip-shaped protrusion 411 that can be inserted into the first strip-shaped groove 130 from top to bottom to achieve positioning. The first sealing strip 46 is installed between the first strip-shaped protrusion and the first strip-shaped groove 130.

[0013] Further, a second strip-shaped groove facing the first strip-shaped groove 130 is formed on the side wall of the first strip-shaped protrusion 411. The first sealing strip 46 is strip-shaped and installed in the second strip-shaped groove.

[0014] Further, the cross-section of the first strip-shaped groove 130 is an arc surface.

[0015] Further, the first strip-shaped groove 130 and the first strip-shaped protrusion 411 are U-shaped.

[0016] Further, the inner wall of the first chamber 1a is provided with a second strip-shaped protrusion 13, and the first strip-shaped groove 130 is formed on the second strip-shaped protrusion 13.

[0017] Further, a second sealing strip 47 is provided between the second strip-shaped protrusion 13 and the side wall of the valve body 41.

[0018] Further, the valve body includes a valve body main body. An installation cavity with an open upper end is formed inside the valve body main body. Two annular valve seats 42 are provided in the installation cavity. An installation area for installing the valve ball is formed between the two valve seats 42. An inner pressure cover 46 for pressing the valve seat 42 is provided at the open end of the installation cavity. A valve rod hole through which the valve rod 44 can pass is formed on the inner pressure cover 46.

[0019] Further, a box body 6 is fixed on the top of the housing 1. The counter and the control box 3 are located inside the box body 6.

[0020] Beneficial effects

[0021] The direct drinking water meter with remote transmission function of the present utility model is provided with a double-chamber structure, which can realize the installation of the valve assembly without multiple pipelines, facilitating the installation and disassembly of the valve assembly, reducing the manufacturing, use and maintenance costs, and improving the overall structural strength of the water meter. It can be installed horizontally and vertically, with a wide range of applications. A strip groove structure is set, which can realize the rapid positioning and precise installation of the valve assembly, shorten the assembly time, improve the assembly efficiency, and has high installation accuracy and good connection reliability, avoiding deflection or displacement during use and having a long service life. At the same time, as the installation carrier of the sealing strip, it has good sealing performance and high pressure-bearing capacity. The direct drinking water meter with remote transmission function of the present utility model has a compact structure, low production cost and maintenance cost, good use reliability, high stability, can realize remote monitoring and control, has good use effect, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is a schematic structural diagram of the direct drinking water meter with remote transmission function of the present utility model;

[0023] Figure 2 FIG. is a schematic internal structural diagram of the direct drinking water meter with remote transmission function of the present utility model;

[0024] Figure 3 FIG. is a schematic structural diagram of the housing of the direct drinking water meter with remote transmission function of the present utility model;

[0025] Figure 4 FIG. is a sectional view of the direct drinking water meter with remote transmission function of the present utility model;

[0026] Figure 5 FIG. is a partial sectional view of the direct drinking water meter with remote transmission function of the present utility model;

[0027] Figure 6 is Figure 5 the enlarged view of part A in

[0028] Figure 7 FIG. is a partial enlarged view of the housing of the direct drinking water meter with remote transmission function of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The embodiments of the present utility model will be described in detail below with reference to the drawings.

[0030] Referring to Figures 1-7 , the present utility model provides a direct drinking water meter with remote transmission function, which includes a housing 1, a metering mechanism and a switching mechanism.

[0031] The housing 1 serves as a support and installation carrier, which is formed by metal casting. To reduce costs, its material is usually cast iron. A first chamber 1a and a second chamber 1b are formed in the housing 1. The first chamber 1a and the second chamber 1b are interconnected through a communication flow channel 103. In this embodiment, the cross-sections of the first chamber 1a and the second chamber 1b are both circular, and the bottom surface is arc-shaped. At the same time, the size of the second chamber 1b is larger than that of the first chamber 1a. Specifically, the diameter and depth of the second chamber 1b are both larger than the diameter and depth of the first chamber 1a. At the same time, the tops of the first chamber 1a and the second chamber 1b are open (opened), and a first installation port 11 and a second installation port 12 are respectively formed. The axes of the first installation port 11 and the second installation port 12 are parallel to each other. At the same time, a water inlet 101 and a water outlet 102 are respectively provided on the side walls at both ends of the housing 1. Among them, the water inlet 101 is arranged on the side close to the first chamber 1a and communicates with the first chamber, and the water outlet 102 is arranged on the side close to the second chamber 1b and communicates with the second chamber 1b. The water inlet 101 and the water outlet 102 are coaxially arranged, and their axes are perpendicular to and intersect the axes of the first chamber and the second chamber at the same time, forming a symmetrical structure as a whole, which is convenient for the control of the center of gravity and installation; in addition, the surface of the housing 1 is subjected to anti-corrosion treatment to ensure stability and durability during long-term use.

[0032] The metering mechanism 5 includes an impeller assembly and a counter. Among them, the impeller assembly is installed in the second chamber 1b. It includes an impeller box. A number of small holes are opened in the impeller box to form water inlet holes. An impeller is rotatably installed in the impeller box. The axis of the impeller is perpendicular to the water flow direction; a gear box is provided at the upper end of the impeller box. A gear assembly is provided in the gear box to form a counter. The input end of the gear assembly is connected to the impeller. The rotation of the impeller drives the rotation of the gear assembly, thereby realizing counting; in this embodiment, the edge of the second installation port 12 is bent upward by 90 degrees to form a connecting portion. The connecting portion is integrally cylindrical, and an installation area is formed inside for installing the counter. The outer wall is provided with external threads for installing a protective cover.

[0033] The switch mechanism includes a valve assembly 4 and a control box 3. The valve assembly 4 is installed in the first chamber 1a, and the control box 3 is installed on the first installation port 11. A driving motor and a wireless communication module are provided in the control box 3. The output end of the driving motor is connected to the valve assembly 4 for controlling the action of the valve assembly 4 to realize opening or closing. The wireless communication module is used for realizing remote signal transmission; specifically, it includes a circuit board, which is arranged in the control box 3. It is respectively connected to the driving motor, the wireless communication module and the electronic counter on the metering mechanism to realize signal transmission between each other, and remote monitoring and control can be realized through the wireless communication module.

[0034] The wireless communication module can be a Wi-Fi module, a Bluetooth module, a LoRa module, an NB-IoT module, etc. Among them, the Wi-Fi module and the Bluetooth module can realize local area network IoT, which is convenient for management and monitoring in home or office environments and can be easily connected to devices such as smartphones and tablets; while the LoRa module and the NB-IoT module have the advantages of low power consumption and long distance, can realize long-distance transmission and monitoring, are suitable for application scenarios such as large-scale engineering projects and smart cities, and can realize remote data transmission and monitoring, and can be selected and installed according to different usage requirements.

[0035] In order to dust-proof and protect the counter and the control box, in this application, a box body 6 is fixed on the top of the housing 1. A cover body is hinged on the box body. The cover body is a transparent cover for easy reading. The counter and the control box 3 are located in the box body 6. When operation or maintenance is required, the cover body can be opened.

[0036] In this application, the valve assembly 4 includes a valve body 41 and a valve ball 43. The cross-section of the valve body 41 is the same as the cross-section of the first chamber, which is circular, and its bottom is an arc surface. The valve body 41 is installed in the first chamber 1a. When installed, the valve body 41 is inserted into the first chamber 1a from top to bottom through the first installation port 11. A first sealing strip 46 is provided between the side wall of the valve body 41 and the inner wall of the first chamber 1a. The first sealing strip 46 divides the first chamber 1a into a water inlet chamber and a water outlet chamber. The water inlet chamber is communicated with the water inlet 101, and the water outlet chamber is communicated with the second chamber 1b; a valve chamber is formed in the valve body 41. Hole bodies 410 are provided on both sides of the valve chamber and form a water inlet hole and a water outlet hole respectively. The water inlet hole is communicated with the water inlet chamber, and the water outlet hole is communicated with the water outlet chamber. Two annular valve seats are provided in the valve chamber. The two valve seats are coaxial with the water inlet hole and the water outlet hole. The valve ball 43 is rotatably installed between the two valve seats. The valve ball 43 is also called a ball core, which is a sphere. A through hole penetrates through the side wall of the sphere. By rotating the valve ball 43, the through hole rotates at an angle, thereby realizing opening or closing. A valve rod 44 is provided on the valve ball 43. The axis of the valve rod 44 is perpendicular to and intersects with the axis of the through hole. The end of the valve rod 44 extends upward and serves as a control end to be connected to the driving motor; in order to improve the control accuracy and increase the torque, in this embodiment, a worm gear is provided on the valve rod, and a worm is provided at the output end of the driving motor. The worm meshes with the worm gear and can drive the worm to rotate, and then drive the valve ball to rotate to realize the control of the flow channel; the use of a worm and worm gear drive can generate a stable and reliable driving force on the valve rod, with high control accuracy. At the same time, it has a self-locking function and is stable and reliable in use.

[0037] The surface of the first mounting port 11 is machined to form a mounting plane, and mounting holes are provided on the mounting plane. The mounting holes are multiple and are circumferentially distributed around the axis of the first mounting port 11 to form a connecting flange 11a. An external gland 45 is fixed on the connecting flange by bolts. A sealing gasket is provided between the external gland 45 and the first mounting port to achieve sealing. At the same time, the lower end of the external gland 45 contacts the top surface of the valve body 41 and can press the valve body 41, thereby realizing the installation and fixation of the valve body 41; the fastening function of the external gland 45 ensures the stability of the valve body 41 during operation and avoids displacement caused by vibration.

[0038] To facilitate rapid positioning and installation, and at the same time improve the overall connection strength and operation reliability, a first strip-shaped groove 130 is provided on the inner wall of the first chamber 1a. The first strip-shaped groove 130 is U-shaped, and the plane where it is located is perpendicular to the axis of the water inlet 101. At the same time, a first strip-shaped protrusion 411 corresponding to the first strip-shaped groove 130 is provided on the side wall of the valve body 41. The first strip-shaped protrusion is also U-shaped and can be inserted into the first strip-shaped groove 130 from top to bottom to achieve radial positioning (limiting). At this time, the valve body 41 cannot rotate and can only move up and down. Cooperating with the external gland at the upper end, fixation is achieved; the first sealing strip 46 is installed between the first strip-shaped protrusion and the first strip-shaped groove 130; a second strip-shaped groove facing the first strip-shaped groove 130 is provided on the side wall of the first strip-shaped protrusion 411. The first sealing strip 46 is strip-shaped and is installed in the second strip-shaped groove. The outer wall of the first sealing strip contacts the inner wall of the first strip-shaped groove 130 to achieve sealing; in this embodiment, the cross-section of the first strip-shaped groove 130 is an arc surface.

[0039] A second strip-shaped protrusion 13 is provided on the inner wall of the first chamber 1a. The first strip-shaped groove 130 is provided on the inner wall of the second strip-shaped protrusion 13, which avoids grooving on the inner wall of the housing (chamber) and reducing the thickness of the housing, thereby affecting the overall structural strength of the housing. At the same time, setting the second strip-shaped protrusion on the inner wall of the first chamber can increase the thickness at this place, improve the structural strength, and at the same time, can reduce the size of the valve body and improve the structural compactness; in order to avoid impact phenomena caused by rigid contact, a second sealing strip 47 is provided between the second strip-shaped protrusion 13 and the side wall of the valve body 41. The second sealing strip 47 can achieve soft contact, avoid rigid impact, and at the same time can compensate for machining errors, improve the installation strength, and further improve the overall sealing performance; during operation, the soft contact characteristic of the second sealing strip 47 effectively absorbs minute vibrations, reduces the failure rate caused by long-term wear, and prolongs the service life of the equipment. In addition, the material selection of the second sealing strip 47 takes into account corrosion resistance to adapt to different working environments and ensure good sealing performance under various conditions; through these designs, not only the reliability and stability of the equipment are improved, but also convenience is provided for subsequent maintenance work.

[0040] In this application, the valve body 41 includes a valve body main body. An installation cavity with an open upper end is formed inside the valve body main body. Two annular valve seats 42 are arranged in the installation cavity. An installation area is formed between the two valve seats 42 for installing a valve ball. The valve ball 43 is rotatably installed between the two valve seats 42. At the same time, an inner gland 46 is provided at the open end of the installation cavity. The inner gland is used to press and fix the valve seat 42. A valve cavity is formed between the inner gland and the installation cavity. A valve rod hole is opened on the inner gland 46 for the valve rod 44 to pass through. A sealing ring is arranged between the inner gland and the valve body main body for sealing between the two. At the same time, in order to facilitate improving the assembly accuracy and use reliability, in this embodiment, a limiting structure is arranged between the inner gland 46 and the valve body main body for realizing the radial limitation of the inner gland 46. The limiting structure can be a protrusion, a groove, a pin and pin hole, etc. In order to facilitate the installation of the outer gland, in this embodiment, a cylindrical protrusion is arranged at the center of the upper end of the inner gland 46. The valve rod hole penetrates to the top surface of the cylindrical protrusion. A hole body that can accommodate the cylindrical protrusion is opened on the outer gland, which is convenient for realizing the installation positioning of the outer gland 45. At the same time, the bottom surface of the outer gland contacts the top surface of the inner gland and can press the inner gland 46, thereby realizing the pressing and fixing of the valve body.

[0041] The direct drinking water meter with remote transmission function of the present utility model adopts a double-chamber structure, and the installation of the valve assembly can be realized without multiple sections of pipelines, which is convenient for the installation and disassembly of the valve assembly, reduces the manufacturing, use and maintenance costs, and improves the overall structural strength of the water meter. It can be installed horizontally and vertically, and has a wide range of applications. A strip groove structure is set, which can realize the rapid positioning and precise installation of the valve assembly, shortens the assembly time, improves the assembly efficiency, has high installation accuracy, good connection reliability, avoids deflection or displacement during use, and has a long service life. At the same time, as the installation carrier of the sealing strip, it has good sealing performance and high pressure-bearing capacity. The direct drinking water meter with remote transmission function of the present utility model has a compact structure, low production cost and maintenance cost, good use reliability, high stability, can realize remote monitoring and control, has good use effect, and has a wide range of applications.

[0042] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A direct drinking water meter with remote transmission function, characterized in that Comprising: A housing, serving as a support and installation carrier, within which a first chamber and a second chamber that communicate with each other are formed. The tops of the first chamber and the second chamber are open and respectively form a first installation opening and a second installation opening. The side wall of the housing is provided with a water inlet communicating with the first chamber and a water outlet communicating with the second chamber; A metering mechanism, including an impeller assembly installed in the second chamber and a counter installed on the second installation opening and connected to the impeller assembly; A switching mechanism, including a valve assembly installed in the first chamber and a control box installed on the first installation opening. The control box is provided with a driving motor connected to the valve assembly and a wireless communication module for realizing remote signal transmission.

2. The direct drinking water meter with remote transmission function according to claim 1, characterized in that: The valve assembly includes a valve body installed in the first chamber. A first sealing strip is provided between the side wall of the valve body and the inner wall of the first chamber, dividing the first chamber into a water inlet chamber and a water outlet chamber. An outer pressure cover that contacts and presses the valve body is fixed on the first installation opening; A valve cavity is formed in the valve body. A water inlet hole and a water outlet hole are respectively provided on both sides of the valve cavity. A valve ball is rotatably installed in the valve cavity. A valve rod is provided on the valve ball. The valve rod serves as a control end and is connected to the driving motor after passing through the outer pressure cover.

3. The direct drinking water meter with remote transmission function according to claim 2, characterized in that: The inner wall of the first chamber is provided with a first strip-shaped groove, and the side wall of the valve body is provided with a first strip-shaped protrusion that can be inserted into the first strip-shaped groove from top to bottom to achieve positioning. The first sealing strip is installed between the first strip-shaped protrusion and the first strip-shaped groove.

4. The direct drinking water meter with remote transmission function according to claim 3, characterized in that: A second strip-shaped groove facing the first strip-shaped groove is formed on the side wall of the first strip-shaped protrusion. The first sealing strip is strip-shaped and installed in the second strip-shaped groove.

5. The direct drinking water meter with remote transmission function according to claim 3, wherein: The cross-section of the first strip-shaped groove is an arc surface.

6. The direct drinking water meter with remote transmission function according to claim 3, characterized in that: The first strip-shaped groove and the first strip-shaped protrusion are U-shaped.

7. The direct drinking water meter with remote transmission function according to claim 3, wherein: The inner wall of the first chamber is provided with a second strip-shaped protrusion, and the first strip-shaped groove is formed on the second strip-shaped protrusion.

8. The direct drinking water meter with remote transmission function according to claim 7, characterized in that: A second sealing strip is provided between the second strip-shaped protrusion and the side wall of the valve body.

9. The direct drinking water meter with remote transmission function according to claim 2, characterized in that: The valve body includes a valve body main body. An installation cavity with an open upper end is formed in the valve body main body. Two annular valve seats are provided in the installation cavity. An installation area for installing the valve ball is formed between the two valve seats; An inner pressure cover for pressing the valve seat is provided at the open end of the installation cavity. A valve rod hole through which the valve rod can pass is formed on the inner pressure cover.

10. The direct drinking water meter with remote transmission function according to claim 1, characterized in that: A box body is provided at the top of the housing. The counter and the control box are located in the box body.

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