A highly integrated water meter

Abstract

The invention discloses a highly integrated water meter, comprising: a water flow body, a gear transmission group, a magnetic needle, an electrical installation box, a circuit board and a meter cover; joints are installed at both ends of the water flow body, the joints are connected to external tap water, the water flow body is provided with an inner cavity, the inner cavity is connected to the joint; a gear transmission group is inserted into the inner cavity, the gear transmission group is installed at the bottom of the electrical installation box, a circuit board is installed in the electrical installation box, a controller and a magnetic sensor are installed on the circuit board; the electrical installation box comprises: a box seat, an extension frame, a sealing cover and a box cover, a gear transmission group is installed on the bottom surface of the box seat, an extension frame is extended from the top surface of the box seat, the extension frame divides the top surface of the box seat into two parts, a circuit board with a controller and a magnetic sensor is installed in the extension frame, and a rotatable magnetic needle is installed outside the extension frame. The highly integrated water meter solves the problem that the conventional thinking in the prior art isolates the control box and the gear transmission mechanism in an upper and lower manner, resulting in a large volume of the entire water meter.

Description

Technical Field

[0001] The invention relates to a water meter, in particular to a highly integrated water meter. Background Art

[0002] A Chinese patent discloses an electromechanical separation IC card water meter with a transmission sensing function and application number CN201721639230.8. The water meter includes: a movement and a control box. A magnetic needle disk is arranged on the movement. The movement and the control box are arranged separately. The control box includes a magnetic gear, a counter and a circuit board. A signal-transmitting magnetic needle is arranged on the counter. A reed switch or a Hall element is arranged on the circuit board. The signal-transmitting magnetic needle and the reed switch or the Hall element cooperate with each other through magnetic poles to transmit the signal to the circuit board to realize counting. The counter cooperates with the magnetic gear through its internal gear transmission structure. The magnetic gear and the magnetic needle disk cooperate magnetically. The magnetic needle disk drives the magnetic gear to rotate. The magnetic gear drives the counter to rotate through the gear transmission structure. The counter drives the signal-transmitting magnetic needle to rotate. Although the water meter realizes counting by magnetic transmission through magnetic needles, gears, reed switches and Hall elements, the water meter still has the following disadvantages:

[0003] Since the only thing we thought of was that there was a gear transmission mechanism in the movement, the movement needed to come into contact with water. In order to prevent water from entering the control box, the control box was designed to be above the magnetic needle. The movement of the magnetic needle needed to be sensed, so the signaling magnetic needle needed to be installed in the control box. The signaling magnetic needle sensed the movement of the magnetic needle at a long distance, and the signaling magnetic needle moved with the movement of the magnetic needle below. The reed switch or Hall element in the control box detected the calculation of the signaling magnetic needle to detect the rotation of the gear transmission mechanism with the movement of the fluid, thereby realizing water metering. Summary of the invention

[0004] The present invention provides a highly integrated water meter to solve the problem in the prior art that the control box and the gear transmission mechanism are separated in an up-and-down manner, which results in a larger volume of the entire water meter.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] The invention discloses a highly integrated water meter, comprising: a water flow body, a gear transmission group, a magnetic needle, an electrical installation box, a circuit board and a meter cover; joints are installed at both ends of the water flow body, the joints are connected to external tap water, the water flow body is provided with an inner cavity, and the inner cavity is communicated with the joint; a gear transmission group is extended into the inner cavity, the gear transmission group is installed at the bottom of the electrical installation box, a circuit board is installed in the electrical installation box, a controller and a magnetic sensor are installed on the circuit board; the electrical installation box comprises: a box seat, an extension frame, a sealing cover and a box cover, the gear transmission group is installed on the bottom surface of the box seat, an extension frame is extended from the top surface of the box seat, the extension frame divides the top surface of the box seat into two parts, a circuit board with a controller and a magnetic sensor is installed in the extension frame, a rotatable magnetic needle is installed outside the extension frame, the magnetic needle is connected to the output shaft of the gear transmission group, the magnetic sensor is located in the extension frame, the sealing cover seals the extension frame, and the box cover presses the sealing cover onto the extension frame; the meter cover buckles the electrical installation box into a convex ring formed by the protrusion of the inner wall of the water flow body.

[0007] Preferably, a mounting frame located inside the extension frame extends from the top surface of the box seat, and the digital tube is mounted on the mounting frame.

[0008] Preferably, the sealing cover comprises: a cover body and a light-shielding layer, the cover body covers the extension frame, the cover body is made of transparent material, a light-shielding layer is adhered to the cover body, the light-shielding layer is provided with a light-transmitting hole, and the light-transmitting hole is opposite to the digital tube.

[0009] Preferably, a sealing ring surrounding the light shielding layer is installed on the cover body, and the sealing ring is clamped by the cover body and the extension frame.

[0010] Preferably, the extended frame wall forms a surrounding block, a first mounting angle and a second mounting angle, the surrounding block surrounds the magnetic needle, the first mounting angle and the second mounting angle are respectively connected to the surrounding block, and the first mounting angle and the second mounting angle are respectively equipped with two magnetic sensors.

[0011] Preferably, a positioning seat is placed in the extension frame, the positioning seat is located below the circuit board, the positioning seat cooperates with the first installation angle or the second installation angle to position the magnetic sensor, and a conductive mechanism is installed on the positioning seat, which is used to connect to the socket row on the circuit board.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention breaks the traditional way of thinking, by arranging an extension frame and a sealing cover in the electrical installation box, a circuit board is buckled between the extension frame and the sealing cover, a magnetic needle is installed outside the extension frame, the magnetic needle is directly connected to the output end of the gear transmission mechanism in the traditional movement, the extension frame and the sealing cover isolate the connection between the magnetic needle and the output end of the gear transmission mechanism, and the possibility of water entering the extension frame through the box seat is very small. In addition, the sealing of the sealing cover and the extension frame can better protect the circuit board. At the same time, a magnetic sensor is arranged next to the magnetic needle, and the setting of the extension frame cannot block the magnetic field, so that the magnetic sensor located in the extension frame can detect the rotation of the magnetic needle. The electrical installation box is buckled in the water-passing body by the cover, so that the entire product layout is small in size, highly integrated, reduced in floor space, improved in applicability, and improved in market competitiveness; at the same time, it also does not require the signal-transmitting magnetic needle setting of the prior art, reducing the use of components.

[0014] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an exploded view of the electrical installation box in a highly integrated water meter;

[0016] Figure 2 It is a structural schematic diagram of the positioning seat in Example 1;

[0017] Figure 3 It is a schematic diagram of the structure of the conductive column and the conductive sheet;

[0018] Figure 4 It is a schematic diagram of the structure of the sealing cover.

[0019] Figure numerals: magnetic needle 1, electrical installation box 2, box seat 20, extension frame 21, surrounding block 211, first installation angle 212, second installation angle 213, sealing cover 22, cover body 221, light shielding layer 222, sealing ring 223, box cover 23, installation frame 24, circuit board 3, table cover 4, positioning seat 5, seat plate 51, positioning block 52, installation plate 53, conductive mechanism 6, clamping block 61, notch 610, screw 62, conductive column 63, conductive sheet 64. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and functions achieved by the present invention clearer and easier to understand, the present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figures 1 to 3As shown, the present invention discloses a highly integrated water meter, comprising: a water flow body (not shown in the figure), a gear transmission group (not shown in the figure), a magnetic needle 1, an electrical installation box 2, a circuit board 3 and a meter cover 4; joints are installed at both ends of the water flow body, the joints are connected to external tap water, the water flow body is provided with an inner cavity, and the inner cavity is communicated with the joint; a gear transmission group is extended into the inner cavity, the gear transmission group is installed at the bottom of the electrical installation box 2, a circuit board 3 is installed in the electrical installation box 2, and a controller and a magnetic sensor are installed on the circuit board 3; the electrical installation box 2 comprises: a box seat 20, an extension frame 21, a seal A sealing cover 22 and a box cover 23, a gear transmission group is installed on the bottom surface of the box base 20, an extension frame 21 is extended from the top surface of the box base 20, and the extension frame 21 divides the top surface of the box base 20 into two parts. A circuit board 3 with a controller and a magnetic sensor is installed in the extension frame 21, and a rotatable magnetic needle 1 is installed outside the extension frame 21. The magnetic needle 1 is connected to the output shaft of the gear transmission group, and the magnetic sensor is located in the extension frame 21. The sealing cover 22 seals the extension frame 21, and the box cover 23 presses the sealing cover 22 onto the extension frame 21; the cover 4 buckles the electrical installation box 2 in the convex ring formed by the protrusion of the inner wall of the water-passing body.

[0022] A mounting frame 24 located inside the extension frame 21 extends from the top surface of the box seat 20, and the mounting frame 24 is used to mount the digital tube, so as to facilitate the positioning and mounting of the digital tube.

[0023] The sealing cover 22 includes: a cover body 221 and a light shielding layer 222. The cover body 221 covers the extension frame 21. The cover body 221 is made of transparent material. A light shielding layer 222 is adhered to the cover body 221. The light shielding layer 222 is provided with a light-transmitting hole, and the light-transmitting hole is directly opposite to the digital tube. The cover body 221 adopts an integral design, which avoids the need to inlay a transparent plate on the cover body 221 to cause loose sealing. The light shielding layer 222 shields the circuit board 3, ensuring the beautiful appearance.

[0024] A sealing ring 223 surrounding the light shielding layer 222 is mounted on the cover 221, and the sealing ring 223 is clamped by the cover 221 and the extension frame 21. This prevents water from entering the connection between the sealing cover 22 and the extension frame 21, and ensures the sealing between the extension frame 21 and the sealing cover 22.

[0025] The wall of the extended frame 21 forms a surrounding block 211, a first mounting angle 212 and a second mounting angle 213. The surrounding block 211 surrounds the magnetic needle 1. The first mounting angle 212 and the second mounting angle 213 are respectively connected to the surrounding block 211. Two magnetic sensors are respectively installed at the first mounting angle 212 and the second mounting angle 213. By setting two magnetic sensors, the correction of the detection result is achieved, and the positions of the first mounting angle 212 and the second mounting angle 213 are symmetrically set, so that the two detection results are consistent, thereby improving the accuracy of the detection.

[0026] A positioning seat 5 is placed in the extension frame 21, and the positioning seat 5 is located below the circuit board 3. The positioning seat 5 cooperates with the first installation angle 212 or the second installation angle 213 to position the magnetic sensor. A conductive mechanism 6 is installed on the positioning seat 5, and the conductive mechanism 6 is used to connect with the socket row on the circuit board 3. The positioning seat 5 positions the magnetic sensor in the first installation angle 212 or the second installation angle 213, and the conductive mechanism 6 realizes the plug-in electrical connection between the circuit board 3 and the magnetic sensor, which is convenient for disassembly and installation.

[0027] The positioning seat 5 includes: a seat plate 51 and a positioning block 52. The bottom surface of the seat plate 51 is provided with a positioning block 52 extending downward. The conductive mechanism 6 is installed on the seat plate 51. The positioning block 52 is used to position the magnetic sensor in the first installation angle 212 or the second installation angle 213. The bottom wall of the first installation angle 212 and the second installation angle 213 is recessed to form a slot for the positioning block 52 to be inserted, so as to prevent the bottom plate and the positioning block 52 from moving when the screw 62 is rotated later, so as to ensure that the subsequent pressing and adjusting operation can be carried out smoothly.

[0028] A mounting plate 53 is mounted above the seat plate 51, and the mounting plate 53 mounts the conductive mechanism 6 on the seat plate 51. The arrangement of the mounting plate 53, which is mounted on the seat plate 51 by screws, facilitates the installation of the conductive mechanism 6.

[0029] The conductive mechanism 6 includes: a movable seat (not shown), a clamping block 61, a screw 62, a plurality of conductive posts 63 and a plurality of conductive sheets 64. The movable seat can be movably installed between the mounting plate 53 and the seat plate 51. The movable seat is hinged to a section of the screw 62. The screw 62 is threadedly connected to the mounting plate 53. A clamping block 61 is fixed on the movable seat. The clamping block 61 is used to clamp the connection foot of the magnetic sensor on the conductive sheet 64 located on the conductive post 63. The conductive sheet 64 is installed on the conductive post 63. The conductive post 63 is inserted into the socket on the circuit board 3. The conductive post 63 is connected to the controller on the circuit board 3 through the conductive sheet 64 and the socket to realize the communication connection between the magnetic sensor and the controller. The conductive sheet 64 can be fully inserted into the socket on the circuit board 3 only after being compressed and deformed by the magnetic sensor, thereby detecting that the circuit board 3 can be installed only when and only when the magnetic sensor is installed in place, avoiding the occurrence of missing magnetic sensors, and ensuring the quality of the entire product.

[0030] The pressing block 61 is formed with a notch 610 for the connecting pin to be placed in. The conductive sheet 64 is elastic, and one end of the conductive sheet 64 hooks the conductive column 63 .

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A highly integrated water meter, characterized in that: include: Water-passing body, gear transmission group, magnetic needle, electrical installation box, circuit board and meter cover; Joints are installed at both ends of the water flow body, and the joints are connected to external tap water. The water flow body is provided with an inner cavity, and the inner cavity is connected to the joints; A gear transmission group is inserted into the inner cavity, and the gear transmission group is installed at the bottom of the electrical installation box. A circuit board is installed in the electrical installation box, and a controller and a magnetic sensor are installed on the circuit board. The electrical installation box comprises: a box seat, an extension frame, a sealing cover and a box cover, a gear transmission group is installed on the bottom surface of the box seat, an extension frame is extended on the top surface of the box seat, the extension frame divides the top surface of the box seat into two parts, a circuit board with a controller and a magnetic sensor is installed in the extension frame, a rotatable magnetic needle is installed outside the extension frame, the magnetic needle is connected to the output shaft of the gear transmission group, the magnetic sensor is located in the extension frame, the sealing cover seals the extension frame, and the box cover presses the sealing cover on the extension frame; The meter cover buckles the electrical installation box into the convex ring formed by the inner wall of the water-passing body; The frame wall is extended to form a surrounding block, a first mounting angle and a second mounting angle, the surrounding block surrounds the magnetic needle, the first mounting angle and the second mounting angle are respectively connected to the surrounding block, and two magnetic sensors are respectively installed at the first mounting angle and the second mounting angle; A positioning seat is placed in the extension frame, the positioning seat is located below the circuit board, the positioning seat cooperates with the first installation angle or the second installation angle to position the magnetic sensor, and a conductive mechanism is installed on the positioning seat, and the conductive mechanism is used to connect with the socket row on the circuit board; The positioning seat comprises: a seat plate and a positioning block, the bottom surface of the seat plate is provided with a positioning block extending downward, a conductive mechanism is installed on the seat plate, and the positioning block is used to position the magnetic sensor within the first installation angle or the second installation angle; A mounting plate is installed above the seat plate, and the mounting plate mounts the conductive mechanism on the seat plate; The conductive mechanism includes: a movable seat, a clamping block, a screw, a plurality of conductive columns and a plurality of conductive sheets. The movable seat can be movably installed between the mounting plate and the seat plate. The movable seat is hinged to a section of the screw. The screw is threadedly connected to the mounting plate. A clamping block is fixed on the movable seat. The clamping block is used to clamp the connecting foot of the magnetic sensor onto the conductive sheet located on the conductive column. The conductive sheet is installed on the conductive column.

2. A highly integrated water meter according to claim 1, characterized in that: An installation frame is extended from the top surface of the box seat and is located inside the extension frame. The digital tube is installed in the installation frame.

3. A highly integrated water meter according to claim 2, characterized in that: The sealing cover includes: a cover body and a light shielding layer. The cover body covers the extension frame. The cover body is made of transparent material. A light shielding layer is adhered to the cover body. The light shielding layer is provided with a light-transmitting hole, which is directly opposite to the digital tube.

4. A highly integrated water meter according to claim 3, characterized in that: A sealing ring surrounding the light shielding layer is installed on the cover body, and the sealing ring is clamped by the cover body and the extension frame.

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