Uniflow meter with rotatable movement

Abstract

The utility model discloses a uniflow meter with a rotatable movement, relates to the field of water meters, and aims to solve the problems that the conventional water meter in the prior art is difficult to read due to the limitation of an installation environment, even cannot read, and meters of some manufacturers are misled to meter readers due to the rotation of dial plates but the movement does not rotate along with the dial plates. And the accuracy of meter reading is influenced. A waterproof connecting groove is formed in the middle of the upper end of the water meter shell, a connecting part with an annular configuration section is arranged at the upper end of the waterproof connecting groove, an impeller is rotationally connected to the middle of the interior of the water meter shell, and a waterproof fixing piece is fixedly arranged in the waterproof connecting groove; the outer side of the upper end face of the waterproof fixing piece is connected with a screw fixing base in the waterproof connecting groove, the upper end of the screw fixing base is rotationally connected with a counter assembly, the counter assembly is connected with a copper seal in a sleeved mode, the copper seal is connected with an upper cover in a sleeved mode, and the lower end of the interior of the upper cover is sleeved with a structural section annular connecting part.

Description

Technical Field

[0001] The utility model relates to the field of water meters, in particular to a single-flow meter with a rotatable movement. Background Art

[0002] Existing technical solutions: Small-caliber mechanical water meters are divided into velocity type and volumetric type. In our country, rotor type water meters are the main type. Rotor type water meters are a type of velocity type water meters and are the most commonly used water meter type in the world. In the national standard, velocity type water meters are defined as "a type of water meter installed in a closed pipe, composed of a power element, and directly moved by the water flow velocity". When water flows through the water meter, it drives the impeller (rotor or propeller) to rotate, and the flow velocity of the water flow is proportional to the speed of the impeller. Since the cross-sectional area of ​​the nozzle at the impeller driven by the water flow is a constant, the speed of the impeller is also proportional to the flow rate. The counting mechanism is connected to the counting mechanism through the linkage component on the impeller shaft, so that the counting mechanism accumulates the number of revolutions of the impeller (rotor or propeller), thereby recording the amount of water passing through the water meter. The rotor multi-jet water meter consists of a case, a middle cover, a table glass, a sealing gasket, a metering mechanism, a counting mechanism and a water filter. After the water flow hits the impeller, the impeller starts to rotate, and the number of revolutions is accumulated through the counting mechanism, which records and displays the amount of water passing through the water meter.

[0003] For example, authorization announcement number CN 101788316, an angular water meter, includes an angular water meter base, a water surface cover, a water meter cumulative indicating device, a valve control motor, an inlet valve, a dedicated stepper motor for a water meter pointer, a water volume sampling unit, a ZigBee antenna, a wireless single-chip microcomputer and a pipeline impeller generator, wherein a battery box is installed on the water inlet pipe side, and a water inlet valve is installed on the water outlet pipe side; the water meter cumulative indicating device includes a water meter scale panel, a dedicated stepper motor for a water meter pointer, and an indicator light; the key point is that the water inlet pipe and the water outlet pipe on the water meter base form a 90° right angle to each other, and all use a scale pointer to indicate the cumulative water consumption; the water meter has a built-in wireless single-chip microcomputer and a controllable water inlet valve, and is a wireless water meter node based on ZigBee wireless communication technology, which is particularly suitable for automatic meter reading and water pipe use in small-sized communities.

[0004] Due to installation environment restrictions, existing water meters may be difficult to read or even impossible to read. In some manufacturers' meters, the dial rotates but the movement does not rotate with it, which will mislead the meter reader and affect the accuracy of meter reading. Therefore, the market urgently needs to develop a single-flow meter with a rotatable movement to help people solve the existing problem. Utility Model Content

[0005] The purpose of the utility model is to provide a single-flow meter with a rotatable movement to solve the problem that the existing water meters mentioned in the above background technology are difficult to read or even cannot read the number due to installation environment restrictions. In some manufacturers' meters, the dial will rotate but the movement will not rotate together, which will mislead the meter reader and affect the accuracy of meter reading.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a single-flow meter with a rotatable movement, comprising a water meter shell, a filter fixedly arranged at one end of the water inlet of the water meter shell, a water-proof connecting groove arranged in the middle of the upper end of the water meter shell, a first rotating connecting groove arranged in the middle of the lower end surface inside the water meter shell, a configuration cross-section annular connecting portion arranged at the upper end of the water-proof connecting groove, an impeller rotatably connected to the middle of the inner part of the water meter shell, a circular slot arranged in the middle of the upper end of the impeller, a magnet arranged inside the circular slot, a water-proof fixing piece fixedly arranged inside the water-proof connecting groove, a screw fixing seat connected to the outer side of the upper end surface of the water-proof fixing piece inside the water-proof connecting groove, a counter assembly rotatably connected to the upper end of the screw fixing seat, a copper seal is sleeved and connected to the counter assembly, a glass cover is fixedly connected to the upper end of the copper seal and to the upper end of the counter assembly, an upper cover is sleeved and connected to the copper seal, a configuration cross-section annular connecting portion is sleeved at the lower end of the upper cover, and a flip cover is rotatably connected to the upper end of the upper cover.

[0007] Preferably, a central shaft is fixedly connected to the middle of the impeller, and the lower end of the central shaft extends out of the lower end of the impeller and is inserted into the first rotating connection groove and is rotatably connected through the first bushing.

[0008] Preferably, a second rotating connecting groove is provided on the protrusion in the middle of the lower end surface of the water-proof fixing piece, and agate is provided on the upper end of the second rotating connecting groove. The protrusion of the water-proof fixing piece is inserted into the middle of the magnet in the circular slot, and the upper end of the central axis extends into the inside of the circular slot and is inserted into the second rotating connecting groove and is rotatably connected through the second bushing.

[0009] Preferably, a gasket is provided between the lower edge of the water-isolating fixing piece and the water-isolating connecting groove, and the water-isolating fixing piece, the screw fixing seat and the water meter housing are fixedly connected by screws.

[0010] Preferably, a limit ring is fixedly arranged between the upper end of the counter assembly and the inner side end surface of the copper seal, a sealing ring is arranged between the side end surface of the glass cover and the inner side end surface of the copper seal, and the upper cover is fixedly connected to the copper seal.

[0011] Preferably, an annular connecting groove is provided on the side end surface of the annular connecting portion of the configuration cross section, and an annular limiting portion of a trapezoidal cross section is provided on the lower end of the inner side end surface of the upper cover.

[0012] Preferably, the upper cover and the annular connecting portion of the configuration cross section are connected by sliding the trapezoidal cross-section annular limiting portion into the annular connecting groove to limit the connection.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, through the setting of the upper cover, the copper seal is sleeved and connected with the upper cover, the upper end of the screw fixing seat is rotatably connected with the counter assembly, a limit ring is fixedly arranged between the upper end of the counter assembly and the inner side end face of the copper seal, a sealing ring is arranged between the side end face of the glass cover and the inner side end face of the copper seal, the upper cover and the copper seal are fixedly connected, and the upper cover and the annular connecting part of the configuration cross section are limitedly connected by sliding the trapezoidal cross-section annular limiting part into the annular connecting groove through the trapezoidal cross-section annular limiting part, so that the upper cover can be rotated at the upper end of the water meter housing, and the counter assembly is driven to rotate synchronously when the upper cover rotates, so that when the personnel check the meter, the counter assembly can be rotated, which is convenient for observing the counter on the counter assembly, making the meter checking more convenient.

[0015] 2. In the utility model, through the setting of magnets, a magnet is set inside the circular slot, a central shaft is fixedly connected to the middle of the impeller, and the lower end of the central shaft extends out of the lower end of the impeller and is inserted into the first rotating connection groove and is rotatably connected through the first bushing, so that when water flows through the inside of the water meter housing, the impeller and the central shaft are pushed to rotate, so that the impeller drives the magnet to rotate, and the magnet is coupled with the magnetic element at the lower end of the central gear inside the counter assembly. The magnet at the upper end of the impeller and the magnetic element at the lower end of the central gear are attracted or repelled, driving the central gear to rotate synchronously, and the central transmission counter records the amount of water flowing through the water meter, so that the impeller is separated from the central gear, and the counting mechanism is isolated from the measured water, so it is not affected by suspended impurities in the water, ensuring the normal operation of the counting mechanism and clear readings.

[0016] 3. In the utility model, through the setting of the center axis, the middle part of the impeller is fixedly connected with the center axis, the lower end of the center axis extends out of the lower end of the impeller and is inserted into the first rotating connection groove and is rotationally connected through the first bushing, the upper end of the center axis extends to the inside of the circular slot and is inserted into the second rotating connection groove and is rotationally connected through the second bushing, so that the rotation of the impeller remains stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a single-flow meter with a rotatable movement according to the utility model;

[0018] Figure 2 It is a schematic diagram of the disassembly of the utility model;

[0019] Figure 3 It is an enlarged view of the detail A of the utility model;

[0020] Figure 4 It is an enlarged view of detail B of the present utility model.

[0021] In the figure: 1. water meter housing; 101. filter; 102. water-blocking connection groove; 103. first rotating connection groove; 104. configuration section annular connection part; 105. annular connection groove; 2. impeller; 201. circular slot; 202. magnet; 3. center axis; 301. first bushing; 302. second bushing; 4. water-blocking fixing piece; 401. second rotating connection groove; 402. agate; 403. gasket; 5. screw fixing seat; 6. counter assembly; 7. copper seal; 701. limit ring; 8. glass cover; 9. sealing ring; 10. upper cover; 1001. trapezoidal section annular limit part; 1002. flip cover. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-4 The utility model provides an embodiment: a single-flow meter with a rotatable movement, comprising a water meter housing 1, a filter 101 is fixedly arranged at one end of the water inlet of the water meter housing 1, a water-proof connection groove 102 is arranged in the middle of the upper end of the water meter housing 1, a first rotating connection groove 103 is arranged in the middle of the lower end surface inside the water meter housing 1, a configuration cross-section annular connection portion 104 is arranged at the upper end of the water-proof connection groove 102, an impeller 2 is rotatably connected to the middle of the inner part of the water meter housing 1, a circular slot 201 is arranged in the middle of the upper end of the impeller 2, and a Magnet 202, a water-proof fixing part 4 is fixedly arranged inside the water-proof connecting groove 102, the outer side of the upper end surface of the water-proof fixing part 4 is connected to a screw fixing seat 5 inside the water-proof connecting groove 102, the upper end of the screw fixing seat 5 is rotatably connected to a counter assembly 6, a copper seal 7 is inserted and connected to the counter assembly 6, a glass cover 8 is fixedly connected to the upper end of the copper seal 7 and to the upper end of the counter assembly 6, an upper cover 10 is inserted and connected to the copper seal 7, a configuration cross-section annular connecting part 104 is inserted into the lower end of the upper cover 10, and a flip cover 1002 is rotatably connected to the upper end of the upper cover 10.

[0024] Furthermore, a central shaft 3 is fixedly connected to the middle of the impeller 2. The lower end of the central shaft 3 extends out of the lower end of the impeller 2 and is inserted into the first rotating connection groove 103 and is rotatably connected through the first bushing 301. When water flows through the water meter housing 1, it pushes the impeller 2 and the central shaft 3 to rotate, so that the impeller 2 drives the magnet 202 to rotate.

[0025] Furthermore, a second rotating connecting groove 401 is provided on the protruding portion in the middle of the lower end surface of the water-proof fixing member 4, and an agate 402 is provided on the upper end of the second rotating connecting groove 401. The protruding portion of the water-proof fixing member 4 is inserted into the middle of the magnet 202 in the circular slot 201, and the upper end of the central axis 3 extends into the circular slot 201 and is inserted into the second rotating connecting groove 401 and is rotatably connected through the second bushing 302. The magnet 202 is coupled with the magnetic element at the lower end of the central gear inside the counter assembly 6, and the magnet 202 at the upper end of the impeller 2 attracts or repels the magnetic element at the lower end of the central gear, driving the central gear to rotate synchronously, and the amount of water flowing through the water meter is recorded by the central transmission counter.

[0026] Furthermore, a gasket 403 is provided between the lower edge of the water-isolating fixing member 4 and the water-isolating connecting groove 102 , and the water-isolating fixing member 4 , the screw fixing seat 5 and the water meter housing 1 are fixedly connected by screws.

[0027] Furthermore, a limit ring 701 is fixedly arranged between the upper end of the counter assembly 6 and the inner side end surface of the copper seal 7, a sealing ring 9 is arranged between the side end surface of the glass cover 8 and the inner side end surface of the copper seal 7, and the upper cover 10 is fixedly connected to the copper seal 7.

[0028] Furthermore, an annular connecting groove 105 is provided on the side end surface of the configuration cross-section annular connecting portion 104 , and a trapezoidal cross-section annular limiting portion 1001 is provided on the lower end of the inner side end surface of the upper cover 10 .

[0029] Furthermore, the upper cover 10 and the annular connecting portion 104 of the structural cross-section are connected by sliding the trapezoidal cross-section annular limiting portion 1001 into the annular connecting groove 105, so that the upper cover 10 can be rotated at the upper end of the water meter housing 1. When the upper cover 10 rotates, the counter assembly 6 is driven to rotate synchronously, so that when personnel check the meter, they can rotate the counter assembly 6, which is convenient for observing the counter on the counter assembly 6, making it more convenient to check the meter.

[0030] Working principle: When in use, the middle part of the impeller 2 is fixedly connected with the central axis 3, and the lower end of the central axis 3 extends out of the lower end of the impeller 2 and is inserted into the first rotating connection groove 103 and is rotatably connected through the first bushing 301, so that when water flows through the inside of the water meter housing 1, it pushes the impeller 2 and the central axis 3 to rotate, so that the central axis 3 drives the magnet 202 to rotate, and a second rotating connection groove 401 is provided on the protrusion in the middle of the lower end surface of the water-proof fixing part 4, and an agate 402 is provided on the upper end of the second rotating connection groove 401. The protrusion of the water-proof fixing part 4 is inserted into the middle of the magnet 202 in the circular slot 201, and the upper end of the central axis 3 extends to the inside of the circular slot 201 and is inserted into the second rotating connection groove 401 and is rotatably connected through the second bushing. 302 is rotatably connected, and is coupled with the magnetic element at the lower end of the central gear inside the counter assembly 6 through the magnet 202. The magnet 202 at the upper end of the impeller 2 attracts or repels the magnetic element at the lower end of the central gear, driving the central gear to rotate synchronously, and the amount of water flowing through the water meter is recorded by the central transmission counter. The upper cover 10 and the annular connecting part 104 of the configuration section slide into the annular connecting groove 105 through the trapezoidal section annular limiting part 1001, so that the upper cover 10 can rotate at the upper end of the water meter housing 1. When the upper cover 10 rotates, it drives the counter assembly 6 to rotate synchronously, so that when personnel check the meter, they can rotate the counter assembly 6, which is convenient for observing the counter on the counter assembly 6, making meter checking more convenient.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A single-flow meter with a rotatable movement, comprising a water meter housing (1), characterized in that: A filter (101) is fixedly provided at one end of the water inlet of the water meter housing (1); a water-proof connection groove (102) is provided in the middle of the upper end of the water meter housing (1); a first rotatable connection groove (103) is provided in the middle of the lower end surface inside the water meter housing (1); a configuration cross-section annular connection portion (104) is provided at the upper end of the water-proof connection groove (102); an impeller (2) is rotatably connected to the middle of the inner part of the water meter housing (1); a circular slot (201) is provided in the middle of the upper end of the impeller (2); a magnet (202) is provided inside the circular slot (201); and a first rotatable connection groove (103) is provided in the middle of the lower end surface inside the water meter housing (1). A water-proof fixing part (4) is provided, and a screw fixing seat (5) is connected to the outside of the upper end surface of the water-proof fixing part (4) inside the water-proof connection groove (102), and a counter assembly (6) is rotatably connected to the upper end of the screw fixing seat (5), and a copper seal (7) is inserted and connected to the counter assembly (6), and a glass cover (8) is fixedly connected to the upper end of the copper seal (7) and the upper end of the counter assembly (6), and an upper cover (10) is inserted and connected to the copper seal (7), and a configuration cross-section annular connecting part (104) is inserted into the lower end of the upper cover (10), and a flip cover (1002) is rotatably connected to the upper end of the upper cover (10).

2. A single-flow meter with a rotatable movement according to claim 1, characterized in that: A central shaft (3) is fixedly connected to the middle of the impeller (2); the lower end of the central shaft (3) extends out of the lower end of the impeller (2) and is inserted into the first rotating connection groove (103) and is rotatably connected via a first bushing (301).

3. A single-flow meter with a rotatable movement according to claim 2, characterized in that: A second rotating connection groove (401) is provided on the protruding portion in the middle of the lower end surface of the water-proof fixing member (4), and agate (402) is provided on the upper end of the second rotating connection groove (401). The protruding portion of the water-proof fixing member (4) is inserted into the middle of the magnet (202) in the circular slot (201), and the upper end of the central axis (3) extends into the inside of the circular slot (201) and is inserted into the second rotating connection groove (401) and is rotatably connected through the second bushing (302).

4. A single-flow meter with a rotatable movement according to claim 1, characterized in that: A gasket (403) is provided between the lower edge of the water-isolating fixing member (4) and the water-isolating connecting groove (102), and the water-isolating fixing member (4), the screw fixing seat (5) and the water meter housing (1) are fixedly connected by screws.

5. A single-flow meter with a rotatable movement according to claim 1, characterized in that: A limit ring (701) is fixedly arranged between the upper end of the counter assembly (6) and the inner side end surface of the copper seal (7), a sealing ring (9) is arranged between the side end surface of the glass cover (8) and the inner side end surface of the copper seal (7), and the upper cover (10) is fixedly connected to the copper seal (7).

6. A single-flow meter with a rotatable movement according to claim 1, characterized in that: An annular connecting groove (105) is provided on the side end surface of the annular connecting portion (104) of the configuration cross section, and an annular limiting portion (1001) of a trapezoidal cross section is provided at the lower end of the inner side end surface of the upper cover (10).

7. A single-flow meter with a rotatable movement according to claim 6, characterized in that: The upper cover (10) and the cross-sectional annular connecting portion (104) are connected to each other by sliding the trapezoidal cross-sectional annular limiting portion (1001) into the annular connecting groove (105) for limiting connection.

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