Long-life water meter easy for wireless communication

Abstract

A long-service-life water meter facilitating wireless communication comprises an outer shell, a shell cover and a machine core, the machine core and a PCB of the machine core are installed in the outer shell, and the long-service-life water meter is characterized in that the outer shell is a stainless steel outer shell, the shell cover is a stainless steel shell cover, an antenna installation hole is formed in the bottom of the outer shell, and a waterproof and anti-explosion antenna is installed on the antenna installation hole; the head of the waterproof and explosion-proof antenna extends out of the antenna mounting hole and then is sleeved with a waterproof shell; the middle part of the waterproof and explosion-proof antenna is provided with an external thread, and a nut sleeved on the external thread is located in the housing and abuts against the housing. And the tail part of the waterproof and explosion-proof antenna is connected with the PCB through an antenna feeder. The water meter has the advantages that the structure is simple and compact, the service life of the water meter is prolonged, the use cost of the water meter is reduced, the signal receiving and transmitting capacity of the water meter is improved, practicability is higher, and the water meter can be widely produced and used.

Description

Technical Field

[0001] The utility model relates to the technical field of water meters, in particular to a long-life water meter that is easy to communicate wirelessly. Background Art

[0002] A water meter is an instrument for measuring the flow of water for production and domestic use. It is mainly composed of a shell and a movement. The shell of a water meter made of stainless steel has good mechanical properties and has the advantages of corrosion resistance and wear resistance, which can greatly improve the service life of the water meter. However, the stainless steel water meter shell has a certain shielding effect on the signal sending and receiving functions of the water meter. It can send and receive signals normally under normal conditions, but in complex environments such as basements where wireless signals are relatively weak, water meters made of stainless steel shells may not be able to complete normal signal sending and receiving work.

[0003] Disadvantages of the existing technology: The water meter housing cover made of stainless steel will have a certain impact on the signal receiving and sending function of the water meter, and it cannot be used normally in complex environments. Utility Model Content

[0004] The utility model provides a long-life water meter that is easy to communicate wirelessly, which not only increases the service life of the water meter, but also effectively avoids the shielding effect of the stainless steel shell on the signal receiving and sending capability of the water meter, improves the signal transmission performance of the water meter, and enables the water meter to be used normally in complex environments.

[0005] In order to achieve the above-mentioned object, the utility model provides a long-life water meter that is easy to wirelessly communicate, comprising a shell, a shell cover and a movement, wherein the movement and its PCB board are installed in the shell, and the key is that: the shell is a stainless steel shell, the shell cover is a stainless steel shell cover, an antenna installation hole is opened at the bottom of the shell, and a waterproof and explosion-proof antenna is installed on the antenna installation hole;

[0006] After the head of the waterproof and explosion-proof antenna extends out of the antenna installation hole, a waterproof shell is mounted on it;

[0007] An external thread is provided in the middle of the waterproof and explosion-proof antenna, and a nut mounted on the external thread is located in the shell and abuts against the shell;

[0008] The tail of the waterproof and explosion-proof antenna is connected to the PCB board via an antenna feeder.

[0009] Through the above design, by setting up an external waterproof and explosion-proof antenna, the signal receiving and sending capabilities of the water meter antenna are greatly improved, effectively avoiding the adverse effects of the stainless steel shell on the water meter signal receiving and sending, so that the long-life water meter in this application can be used normally in complex environments such as basements, and has stronger practicality.

[0010] Stainless steel has good mechanical properties, as well as excellent characteristics such as corrosion resistance, wear resistance, high temperature resistance, safety and environmental protection. Using stainless steel instead of plastic to manufacture the water meter shell can greatly extend the service life of the water meter and thus reduce the cost of using the water meter.

[0011] Preferably, a waterproof sealing ring is installed on the contact surface between the waterproof shell and the shell.

[0012] The waterproof sealing ring has the function of isolation and sealing, which can prevent external air or water from entering the shell through the antenna installation hole and corroding the movement, thereby ensuring that the inside of the shell is in a completely sealed state, thereby increasing the service life of the water meter.

[0013] Preferably, the housing and the housing cover are sealed by a lead seal.

[0014] The sealing between the shell covers is achieved by lead sealing, which greatly improves the sealing firmness of the shell and ensures that the inside of the water meter is in a completely sealed state, preventing the movement from being corroded by moisture or oxygen in the external air, thereby increasing the service life of the water meter.

[0015] Preferably, a transparent glass window is provided on the shell cover, and the transparent glass window is sealed to the shell cover via a sealing gasket.

[0016] The top of the shell cover presses the sealing gasket tightly against the transparent glass window, so that when the shell cover and the shell cover are sealed with lead, the positions of the transparent glass window and the sealing gasket remain unchanged, and the inside of the shell cover remains completely sealed.

[0017] Preferably, a plastic plate is attached to the inner side of the transparent glass window, and a display mounting hole is opened in the middle of the plastic plate.

[0018] The plastic plate is used for fixing the display.

[0019] Preferably, the movement comprises a power supply module, a PCB board and a display module which are sequentially fixed in the housing from bottom to top, and the PCB board is respectively connected to the power supply module and the display module circuits.

[0020] The power supply module is used to supply power to other modules, and the display module is used to display the water consumption data of the water meter in real time.

[0021] Preferably, a fixing bracket is provided on the inner side wall of the bottom of the housing, a power supply module is fixed on the fixing bracket, and the fixing bracket fixes the PCB board above the power supply module.

[0022] The fixing bracket is used to install and fix the power supply module and the PCB board.

[0023] Preferably, the display module is provided with a display and a display circuit board, the display circuit board is installed above the PCB board via a support seat, and the display is installed on the display circuit board via the display mounting hole.

[0024] The display is used for real-time display of water consumption data information, and the display circuit board is used for controlling the correct display of the display.

[0025] Preferably, an ultrasonic transducer mounting hole is provided at the bottom of the shell, a pair of ultrasonic transducers are mounted on the outer side wall of the bottom of the shell through the ultrasonic transducer mounting hole, and the ultrasonic transducer is connected to a flow tube.

[0026] A pair of ultrasonic transducers are respectively installed at the water inlet detection end and the water outlet detection end of the flow tube, and are used to detect the medium flow in the flow tube.

[0027] Preferably, a desiccant is also provided inside the housing.

[0028] After the water meter is dried and sealed, there will inevitably be a small amount of moisture inside it. A desiccant is arranged inside the shell cover to absorb the moisture inside the shell cover, so that the inside of the shell cover remains dry, avoiding moisture from corroding the meter core, and further improving the service life of the water meter. The desiccant is a magnesium chloride desiccant.

[0029] The beneficial effects of the utility model are as follows: the structure is simple and compact, which not only prolongs the service life of the water meter and reduces the use cost of the water meter, but also improves the signal receiving and sending capability of the water meter, is more practical, and can be widely produced and used. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a side view of the utility model;

[0031] Figure 2 It is the AA cross-sectional view of the utility model;

[0032] Figure 3 It is a top view of the utility model;

[0033] Figure 4 It is the BB cross-sectional view of the utility model;

[0034] Figure 5 It is a bottom view of the present utility model. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and specific examples. The following embodiments or drawings are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0036] like Figure 1 , Figure 5 As shown: a long-life water meter that is easy to communicate wirelessly, including a shell 1, a shell cover 2 and a movement, the movement and its PCB board 7 are installed in the shell 1, characterized in that: the shell 1 is a stainless steel shell, the shell cover 2 is a stainless steel shell cover, and the shell 1 and the shell cover 2 are sealed by a lead seal 9.

[0037] An antenna mounting hole is provided at the bottom of the shell 1, and a waterproof and explosion-proof antenna 4 is installed on the antenna mounting hole; an ultrasonic transducer mounting hole is provided at the bottom of the shell 1, and a pair of ultrasonic transducers 18 are installed on the bottom outer wall of the shell 1 through the ultrasonic transducer mounting hole, and the ultrasonic transducer 18 is connected to a flow tube 19.

[0038] like Figure 2 As shown: after the head of the waterproof and explosion-proof antenna 4 extends out of the antenna installation hole, a waterproof housing 3 is mounted thereon;

[0039] An external thread is provided in the middle of the waterproof and explosion-proof antenna 4, and a nut 6 mounted on the external thread is located inside the housing 1 and abuts against the housing 1;

[0040] The tail of the waterproof and explosion-proof antenna is connected to the PCB board 7 via an antenna feeder line 5 .

[0041] A waterproof sealing ring 8 is installed on the contact surface between the waterproof housing 3 and the housing 1 .

[0042] like Figure 3 , Figure 4 As shown: a transparent glass window 10 is provided on the shell cover 2, and the transparent glass window 10 and the shell cover 2 are sealed via a sealing gasket 11.

[0043] A plastic plate 12 is attached to the inner side of the transparent glass window 10 , and a display mounting hole is opened in the middle of the plastic plate 12 .

[0044] like Figure 4 As shown: the movement includes a power supply module 13, a PCB board 7 and a display module fixed in the housing 1 from bottom to top, and the PCB board 7 is respectively connected to the power supply module 13 and the display module circuit.

[0045] A fixing bracket 14 is disposed on the inner side wall of the bottom of the housing 1 , and a power supply module 13 is fixed on the fixing bracket 14 . The fixing bracket 14 fixes the PCB board 7 above the power supply module 13 .

[0046] The display module is provided with a display 15 and a display circuit board 16. The display circuit board 16 is installed above the PCB board 7 via a support seat 17, and the display 15 is installed on the display circuit board 16 via the display mounting hole.

[0047] A desiccant is also provided inside the housing 1. The desiccant in this embodiment is a magnesium chloride desiccant.

[0048] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A long-life water meter that is easy to communicate wirelessly, comprising a housing (1), a housing cover (2) and a movement, wherein the movement and its PCB board (7) are installed in the housing (1), characterized in that: The housing (1) is a stainless steel housing, the housing cover (2) is a stainless steel housing cover, an antenna mounting hole is provided at the bottom of the housing (1), and a waterproof and explosion-proof antenna (4) is installed on the antenna mounting hole; After the head of the waterproof and explosion-proof antenna (4) extends out of the antenna installation hole, a waterproof housing (3) is mounted thereon; An external thread is provided in the middle of the waterproof and explosion-proof antenna (4), and a nut (6) mounted on the external thread is located inside the outer shell (1) and abuts against the outer shell (1); The tail of the waterproof and explosion-proof antenna is connected to the PCB board (7) via an antenna feeder line (5).

2. The long-life water meter capable of wireless communication according to claim 1, characterized in that: A waterproof sealing ring (8) is installed on the contact surface between the waterproof housing (3) and the housing (1).

3. The long-life water meter capable of wireless communication according to claim 1, characterized in that: The housing (1) and the housing cover (2) are sealed by a lead seal (9).

4. The long-life water meter capable of wireless communication according to claim 1, characterized in that: A transparent glass window (10) is provided on the shell cover (2), and the transparent glass window (10) and the shell cover (2) are sealed via a sealing gasket (11).

5. The long-life water meter capable of wireless communication according to claim 4, characterized in that: A plastic plate (12) is attached to the inner side of the transparent glass window (10), and a display mounting hole is opened in the middle of the plastic plate (12).

6. The long-life water meter capable of wireless communication according to claim 1, characterized in that: The core comprises a power supply module (13), a PCB board (7) and a display module which are fixed in the housing (1) in sequence from bottom to top, and the PCB board (7) is respectively connected to the power supply module (13) and the display module circuit.

7. The long-life water meter capable of wireless communication according to claim 6, characterized in that: A fixing bracket (14) is provided on the inner side wall of the bottom of the housing (1), a power supply module (13) is fixed on the fixing bracket (14), and the fixing bracket (14) fixes the PCB board (7) above the power supply module (13).

8. The long-life water meter capable of wireless communication according to claim 6, characterized in that: The display module is provided with a display (15) and a display circuit board (16); the display circuit board (16) is mounted above the PCB board (7) via a support seat (17); and the display (15) is mounted on the display circuit board (16) via a display mounting hole.

9. The long-life water meter capable of wireless communication according to claim 1, characterized in that: An ultrasonic transducer mounting hole is provided at the bottom of the housing (1), a pair of ultrasonic transducers (18) are mounted on the bottom outer wall of the housing (1) through the ultrasonic transducer mounting hole, and the ultrasonic transducers (18) are connected to a flow tube (19).

10. The long-life water meter capable of wireless communication according to claim 1, characterized in that: A desiccant is also arranged inside the housing (1).

Images