Dry type valve control water meter

Abstract

The utility model provides a dry type valve control water meter which comprises a base meter, a machine core is arranged in the base meter, a ball valve is arranged on a water outlet pipe of the base meter, a sealing box, a motor sleeve and a transmission box are arranged on the base meter, the transmission box is located above the ball valve, the motor sleeve is fixed to the top of the transmission box, and the sealing box is fixed to the top of the motor sleeve. A battery and a circuit board are arranged in the sealing box, a sealing plate is arranged at the opening end of the sealing box in a sealing mode, and a sealing cover is arranged at the outer end of the sealing plate. A motor is arranged in the motor sleeve, an output shaft of the motor is located at the bottom and drives a transmission gear set in the transmission box to operate through a first magnetic transmission assembly, and the transmission gear set drives a valve rod of the ball valve to rotate through a second magnetic transmission assembly. The sealing box forms a closed space through the sealing plate, the dryness of a battery and a circuit board in the sealing box is ensured, meanwhile, the sealing cover additionally arranged on the outer side can prevent the sealing plate from bearing water pressure, and therefore the sealing time limit is greatly prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to an intelligent water meter, especially a dry type valve control water meter. BACKGROUND

[0002] In the early 21st century, the birth of intelligent water meter completely changed the appearance of water meter, and made it change from a simple metering tool to a key node of intelligent water system. The intelligent water meter integrates modern microelectronic technology, sensing technology and intelligent IC card technology, and has many intelligent characteristics besides basic water consumption metering and electronic display functions. However, the waterproof and moisture-proof characteristics of the water meter electronic device are particularly important behind the advantages of high efficiency and convenience brought by the intelligent water meter to water management.

[0003] The existing intelligent water meter electrical components often use epoxy resin / polyurethane pouring sealant for pouring sealing. In actual use, affected by the environment, the phenomenon of peeling between the pouring sealant and the side wall of the protective box and the electrical components (i.e. adhesion failure) easily occurs. In a humid and low-lying environment, the water meter electronic module is damaged. UTILITY MODEL CONTENTS

[0004] (I) Technical problem to be solved

[0005] The utility model aims at providing a dry type valve control water meter with good moisture-proof performance. In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] (II) Technical scheme

[0007] A dry type valve control water meter, comprising a base meter, a movement is arranged in the base meter, and a ball valve is arranged on the water outlet pipe of the base meter, a sealing box, a motor cover and a transmission box are arranged on the base meter, the transmission box is located above the ball valve, the motor cover is fixed on the top of the transmission box, and the sealing box is fixed on the top of the motor cover; a battery and a circuit board are arranged in the sealing box, a sealing plate is arranged at the open end of the sealing box, and a sealing cover is arranged at the outer end of the sealing plate; a motor is arranged in the motor cover, the output shaft of the motor is located at the bottom and drives the transmission gear set in the transmission box to run through the first magnetic transmission assembly, and the transmission gear set drives the valve rod of the ball valve to rotate through the second magnetic transmission assembly.

[0008] Further, the sealing plate is fixed in the open end of the sealing box by ultrasonic welding, and the sealing cover is connected to the open end of the sealing box by screwing.

[0009] Further, a wire hole is arranged between the sealing box and the motor cover, and a wire is connected between the motor and the circuit board through the wire hole.

[0010] Further, the first magnetic transmission assembly and the second magnetic transmission assembly are both composed of two oppositely arranged rotary bodies, a plurality of magnetic steels are embedded on the rotary bodies, and the rotary bodies in the transmission box are coaxially provided with gears which are engaged with the transmission gear set.

[0011] Further, the movement comprises a bevel gear driven to rotate by a counting gear of the movement, and a sensing pointer disc, one end of which is engaged with the bevel gear and the other end of which is provided with a sensing pointer, and the circuit board is provided with a non-magnetic sensor near the position of the sensing pointer.

[0012] Further, the base is provided at the top with a watch cover, and the sealing box, the motor sleeve and the transmission box are all located in the watch cover.

[0013] Further, the sealing box is in a columnar shape, and the opening is arranged at one of the end faces.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically:

[0016] 1. The battery and the circuit board are arranged in the sealing box, and the opening end of the sealing box is provided with a sealing plate through ultrasonic welding, and the sealing box is provided with a sealing cover at the outer end of the sealing plate, so that the sealing box forms a closed space through the sealing plate, so as to ensure the dryness of the battery and the circuit board, and the sealing cover added on the outside can avoid the bearing of water pressure by the sealing plate, thereby greatly improving the sealing time limit.

[0017] 2. The sealing box is in a columnar shape, and the opening is arranged at one of the end faces, so as to reduce the opening size, and the small opening size is beneficial to the operation of the ultrasonic welding process, the sealing plate is not easy to produce deformation defects, and the adjustment difficulty of parallelism between the tooling and the welding head during welding operation is reduced, and the influence of the height difference around the workpiece during welding is reduced.

[0018] 3. The motor is located in the motor sleeve, and drives the transmission gear set in the transmission box to operate through the first magnetic transmission assembly, drives the valve rod of the ball valve to rotate through the second magnetic transmission assembly, and realizes non-contact transmission of the motor through the two magnetic transmission assemblies, so that the motor and the transmission gear set are respectively located in the sealed space, and the waterproof requirements of different grades are met. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described in connection with the embodiments with reference to the drawings.

[0020] Figure 1 is the appearance structure schematic view of the utility model;

[0021] Figure 2 is the structure schematic view of the utility model after removing the watch cover;

[0022] Figure 3 is a transverse sectional view of the utility model;

[0023] Figure 4 is a longitudinal sectional view of the utility model;

[0024] Figure 5 is Figure 4 is a local enlarged schematic view of the middle I.

[0025] Explanation of the drawings:

[0026] 1, base table; 101, movement; 102, bevel gear;

[0027] 103, sensing pointer disc; 104, sensing pointer; 2, watch cover;

[0028] 3, sealed box; 301, sealing cover; 302, sealing plate;

[0029] 4, transmission box; 5, battery; 6, circuit board;

[0030] 7, motor cover; 701, threading hole; 8, motor;

[0031] 9, first magnetic transmission assembly; 10, transmission gear set; 11, second magnetic transmission assembly;

[0032] 12, ball valve. DETAILED DESCRIPTION

[0033] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0034] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation of the utility model.

[0035] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified and limited.

[0036] In the utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0037] The utility model is further described below in combination with the specific embodiments and the drawings.

[0038] Please refer to Figures 1 to 5 The utility model discloses a dry type valve control water meter, including base meter 1, the base meter 1 is equipped with movement 101, and its water outlet pipe is equipped with ball valve 12, the base meter 1 is equipped with sealing box 3, motor cover 7 and transmission box 4, the transmission box 4 is located above ball valve 12, the motor cover 7 is fixed at the top of transmission box 4, the sealing box 3 is fixed at the top of motor cover 7, wherein:

[0039] As Figure 3 The sealing box 3 is equipped with battery 5 and circuit board 6, and its open end is equipped with a sealing plate 302, and the sealing box 3 is equipped with sealing cover 301 at the outer end of sealing plate 302;Through sealing plate 302, the sealing box 3 forms a closed space, guarantees the dryness of battery 5 and circuit board 6 in it, and the sealing cover 301 additionally arranged on the outside can avoid the bearing water pressure of sealing plate 302, thereby greatly improving the sealing time limit.

[0040] As Figure 3 And 4 The motor cover 7 is equipped with motor 8, and the output shaft of motor 8 is located at the bottom and drives transmission gear set 10 in transmission box 4 to run through first magnetic transmission assembly 9, and transmission gear set 10 drives the valve rod of ball valve 12 to rotate through second magnetic transmission assembly 11. Through the above structure, motor 8 and transmission gear set 10 are respectively in a sealed space, meeting the waterproof requirements of different grades.

[0041] It is worth mentioning that the sealing plate 302 is fixed to the inside of the opening end of the sealing box 3 by ultrasonic welding to ensure sealing, while the sealing cover 301 is connected to the outside of the opening end of the sealing box 3 by thread for easy assembly.

[0042] Furthermore, the sealing box 3 is columnar, with its opening located on one end face, thereby reducing the opening size. The smaller opening size is beneficial for ultrasonic welding, the sealing plate 302 is less prone to deformation defects, and the difficulty of adjusting the parallelism between the tooling and the welding head is reduced during welding, thus reducing the impact of height differences around the workpiece during welding.

[0043] It should be noted that, as Figure 3 A wire hole 701 is provided between the sealing box 3 and the motor sleeve 7, and the wire passes through the wire hole 701 to connect the motor 8 to the circuit board 6.

[0044] It is understood that the first magnetic transmission component 9 and the second magnetic transmission component 11 are both composed of two opposing rotating bodies. Several magnets are embedded on the rotating bodies, and the rotating bodies in the transmission box 4 are coaxially equipped with gears, which mesh with the transmission gear set 10.

[0045] like Figure 4 and 5 The mechanism 101 includes a bevel gear 102 and a sensing pointer disk 103. The bevel gear 102 is driven to rotate by a counting gear in the mechanism 101. One end of the sensing pointer disk 103 meshes with the bevel gear 102, and the other end is equipped with a sensing pointer 104. A non-magnetic sensor is located on the circuit board 6 near the sensing pointer 104. The counting gear drives the bevel gear 102 to rotate, thereby causing the sensing pointer disk 103 to rotate. The non-magnetic sensor on the circuit board 6 can calculate the flow rate reading by acquiring the number of rotations of the sensing pointer disk 103, thus digitizing the reading and facilitating the management of the control valve.

[0046] Preferably, the base watch 1 is provided with a watch cover 2 on top, and the sealing box 3, motor sleeve 7 and transmission box 4 are all located inside the watch cover 2 to improve the protection performance of each component.

[0047] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A dry-type valve-controlled water meter, comprising a base meter (1), wherein the base meter (1) is provided with a movement (101), and a ball valve (12) is provided on its outlet pipe, characterized in that: The base (1) is provided with a sealing box (3), a motor sleeve (7) and a transmission box (4). The transmission box (4) is located above the ball valve (12). The motor sleeve (7) is fixed to the top of the transmission box (4). The sealing box (3) is fixed to the top of the motor sleeve (7). The sealing box (3) is provided with a battery (5) and a circuit board (6). A sealing plate (302) is sealed at its opening end. The sealing box (3) is provided with a sealing cover (301) at the outer end of the sealing plate (302). The motor sleeve (7) is provided with a motor (8). The output shaft of the motor (8) is located at the bottom and drives the transmission gear set (10) in the transmission box (4) to run through the first magnetic transmission assembly (9). The transmission gear set (10) drives the valve stem of the ball valve (12) to rotate through the second magnetic transmission assembly (11).

2. The dry-type valve-controlled water meter according to claim 1, characterized in that: The sealing plate (302) is fixed to the inside of the opening end of the sealing box (3) by ultrasonic welding, and the sealing cover (301) is connected to the outside of the opening end of the sealing box (3) by thread.

3. The dry-type valve-controlled water meter according to claim 1, characterized in that: A wire hole (701) is provided between the sealing box (3) and the motor sleeve (7), and the wire passes through the wire hole (701) to connect the motor (8) to the circuit board (6).

4. The dry-type valve-controlled water meter according to claim 1, characterized in that: The first magnetic transmission assembly (9) and the second magnetic transmission assembly (11) are both composed of two opposing rotating bodies. Several magnets are embedded on the rotating bodies, and the rotating bodies in the transmission box (4) are coaxially equipped with gears, which mesh with the transmission gear set (10).

5. The dry-type valve-controlled water meter according to claim 1, characterized in that: The mechanism (101) includes a bevel gear (102) and a sensing pointer disk (103). The bevel gear (102) is driven to rotate by the counting gear of the mechanism (101). One end of the sensing pointer disk (103) meshes with the bevel gear (102), and the other end is provided with a sensing pointer (104). The circuit board (6) is provided with a non-magnetic sensor near the sensing pointer (104).

6. The dry-type valve-controlled water meter according to claim 1, characterized in that: The base (1) is provided with a cover (2) on top, and the sealing box (3), motor sleeve (7) and transmission box (4) are all located inside the cover (2).

7. A dry-type valve-controlled water meter according to claim 1 or 2, characterized in that: The sealing box (3) is cylindrical, with its opening located on one of its end faces.

Images