A detachable rectifier water meter

Abstract

The invention discloses a water meter, and particularly relates to a detachable rectifying water meter, comprising: a body, a water inlet of the body being connected to a water inlet pipe, a water outlet of the body being connected to a water outlet pipe, a first cylinder being arranged in the water inlet pipe, a plurality of first conduits being arranged in the first cylinder, and a plurality of sliding tubes being arranged in the first conduit; a device for rectifying is arranged on the water inlet pipe of the water meter of the device, so that the water flow is greatly adjusted before entering the water meter, and the turbulent flow is changed into the laminar flow, thereby improving the measuring environment of the water meter and improving the measuring accuracy of the water meter.

Description

Technical Field

[0001] The invention relates to the technical field of engineering equipment, and in particular to a detachable rectifier water meter. Background Art

[0002] A water meter is an instrument for measuring water flow, most of which measure the cumulative flow of water. It is generally divided into two categories: volumetric water meters and velocity water meters. It originated in the UK and has a history of nearly two hundred years. When selecting the specifications of a water meter, you should first estimate the size and range of the flow rate normally used, and then choose the water meter with the specification that is closest to the commonly used flow rate as the first choice. Installing a water body rectification device at the water inlet end of the water meter can effectively improve the measurement environment of the water meter and improve the measurement accuracy of the water meter.

[0003] The rectifying device of the existing detachable water meter with a rectifying device rectifyes the water flow through a single-layer rectifying component, and the rectifying effect is poor, and it is difficult to improve the metering environment of the water meter. In addition, the rectifying device of the existing detachable water meter with a rectifying device is difficult to remove conveniently, and maintenance is inconvenient. Summary of the invention

[0004] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a detachable rectifier water meter to solve the current technical problems.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] The present invention provides a detachable rectifier water meter, comprising: a body, a water inlet of the body connected to a water inlet pipe, a water outlet of the body connected to a water outlet pipe, a first cylinder arranged in the water inlet pipe, a plurality of first conduits arranged in the first cylinder, and a plurality of sliding tubes arranged in the first conduit.

[0007] Preferably, a cross plate is provided in each sliding tube, a blind hole is provided on the cross plate, a tension spring is connected to the bottom of the blind hole, the other end of the tension spring is connected to a connecting rod, and the connecting rod is fixed to the end of the first conduit.

[0008] Preferably, the blind hole is arranged in the middle position of the cross plate.

[0009] Preferably, the connecting rod is arranged at the end of the water inlet end of the first conduit.

[0010] Preferably, the first cylinder is connected to a second cylinder, and a plurality of cross-distributed partitions are arranged in the second cylinder.

[0011] Preferably, the partitions are cross-distributed, and their cross-sections form a cross-shaped cross.

[0012] Preferably, a baffle is connected between the second cylinder and the inner wall of the water inlet pipe.

[0013] Preferably, the sliding tube is relatively slidably disposed in the first conduit, and a clearance fit is adopted between the sliding tube and the first conduit.

[0014] Preferably, the first conduits are a plurality of square tubes, and the plurality of the first conduits are arranged side by side in the first cylinder.

[0015] The beneficial effects of the present invention are:

[0016] (1) The water inlet pipe of the water meter of the device is provided with a rectifying device, so that the water flow can be adjusted before entering the water meter, changing the turbulent flow into laminar flow, improving the measurement environment of the water meter and improving the measurement accuracy of the water meter;

[0017] (2) The sliding tube of the device can slide in the first conduit. When the water flow speed is fast, the water flow Reynolds number is large, and a longer rectifying device is required for rectification. At this time, the friction force of the water flow on the inner wall of the sliding tube will push the sliding tube to slide in the first conduit, so that the sliding tube extends out of the first conduit, thereby improving the rectification effect of the device. On the contrary, when the water flow speed is slow, the sliding tube is pulled back into the first conduit by the tension spring, thereby reducing the flow resistance of the water.

[0018] (3) The device performs three-stage rectification through the second cylinder, the first conduit and the sliding tube, and the rectification effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a structural schematic diagram of a detachable rectifier water meter according to an embodiment of the present invention;

[0021] Figure 2 1 is a schematic structural diagram of a water inlet pipe of a detachable rectifier water meter according to an embodiment of the present invention;

[0022] Figure 3 It is a structural schematic diagram of a first cylinder and a second cylinder of a detachable rectifier water meter according to an embodiment of the present invention;

[0023] Figure 4 2 is a schematic structural diagram of a first conduit and a sliding tube of a detachable rectifier water meter according to an embodiment of the present invention;

[0024] Figure 5 It is another structural schematic diagram of the first conduit and the sliding tube of the detachable rectifier water meter according to an embodiment of the present invention;

[0025] Figure 6 It is a partial structural schematic diagram of a first conduit and a sliding tube of a detachable rectifier water meter according to an embodiment of the present invention;

[0026] Figure 7 It is another structural schematic diagram of the detachable rectifier water meter according to an embodiment of the present invention.

[0027] Description of reference numerals:

[0028] exist Figure 1-Figure 7 In the figure, the main body 1; the second cylinder 2, the baffle 3; the water inlet pipe 4; the partition 5; the first cylinder 6; the sliding pipe 7; the cross plate 8; the connecting rod 9; the tension spring 10; the blind hole 11; the first conduit 12; and the water outlet pipe 13. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention provides a detachable rectifier water meter, comprising: a body 1, a water inlet of the body 1 is connected to a water inlet pipe 4, a water outlet of the body 1 is connected to a water outlet pipe 13, a first cylinder 6 is arranged in the water inlet pipe 4, a plurality of first conduits 12 are arranged in the first cylinder 6, and a plurality of sliding tubes 7 are arranged in the first conduit 12. The body 1 is an intelligent water meter, the water inlet pipe 4 and the water outlet pipe 13 are both metal pipes, the first cylinder 6 and the second cylinder 2 are both metal rectangular pipes, arranged in the water inlet pipe 4, the first conduit 12 is a metal square pipe, and the sliding pipe 7 is also a metal square pipe, which can slide in the first conduit 12.

[0031] A cross plate 8 is provided in each sliding tube 7, a blind hole 11 is provided on the cross plate 8, a tension spring 10 is connected to the bottom of the blind hole 11, the other end of the tension spring 10 is connected to the connecting rod 9, and the connecting rod 9 is fixed to the end of the first conduit 12. The cross plate 8 is a metal plate with a cross-shaped cross section, which is used to divide each sliding tube 7 into four identical small square tubes to improve the rectification effect. The tension spring 10 is a metal tension spring, and the connecting rod 9 is a metal rod. The blind hole 11 is set in the middle position of the cross plate 8. The connecting rod 9 is set at the end of the first conduit 12 where water enters.

[0032] The first cylinder 6 is connected to the second cylinder 2, and a plurality of cross-distributed partitions 5 are arranged in the second cylinder 2. The partitions 5 are cross-distributed, and their cross sections form a cross-shaped cross-section. The partitions 5 are metal plates.

[0033] A baffle plate 3 is connected between the second cylinder 2 and the inner wall of the water inlet pipe 4 . The baffle plate 3 is a metal plate and is used to fix the first cylinder 6 and the second cylinder 2 in the water inlet pipe 4 .

[0034] The sliding tube 7 is relatively slidably disposed in the first conduit 12 , and a clearance fit is adopted between the sliding tube 7 and the first conduit 12 to reduce the sliding resistance of the sliding tube 7 .

[0035] The first conduits 12 are a plurality of square tubes, and the plurality of first conduits 12 are arranged side by side in the first cylinder 6 .

[0036] The water inlet pipe 4 of the water meter of the device is provided with a device for rectification, so that the water flow can be adjusted before entering the water meter, changing the turbulent flow into laminar flow, improving the measurement environment of the water meter, and improving the measurement accuracy of the water meter; the sliding tube 7 of the device can slide in the first conduit 12. When the water flow speed is fast, the water flow Reynolds number is large, and a longer rectification device is required for rectification. At this time, the friction force of the water flow on the inner wall of the sliding tube 7 will push the sliding tube 7 to slide in the first conduit 12, so that the sliding tube 7 extends out of the first conduit 12, improving the rectification effect of the device. On the contrary, when the flow speed of the water flow is slow, the sliding tube 7 is pulled back into the first conduit 12 by the tension spring 10, reducing the flow resistance of the water. The device performs three-level rectification through the second cylinder 2, the first conduit 12 and the sliding tube 7, and the rectification effect is good.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detachable rectifier water meter, comprising: The main body is characterized in that: the water inlet of the main body is connected to a water inlet pipe, the water outlet of the main body is connected to a water outlet pipe, a first cylinder is arranged in the water inlet pipe, a plurality of first conduits are arranged in the first cylinder, and a plurality of sliding tubes are arranged in the first conduit; the sliding tube can slide in the first conduit. When the water flow speed is fast, the water flow Reynolds number is large, and a longer rectifying device is required for rectification. At this time, the friction force of the water flow on the inner wall of the sliding tube will push the sliding tube to slide in the first conduit, so that the sliding tube extends out of the first conduit, thereby improving the rectification effect of the device. On the contrary, when the flow speed of the water flow is slow, the sliding tube is pulled back into the first conduit by the tension spring, thereby reducing the flow resistance of the water.

2. The detachable rectifier water meter according to claim 1, characterized in that: A cross plate is arranged in each sliding tube, a blind hole is arranged on the cross plate, a tension spring is connected to the bottom of the blind hole, the other end of the tension spring is connected to a connecting rod, and the connecting rod is fixed to the end of the first conduit.

3. The detachable rectifier water meter according to claim 2 is characterized in that: The blind hole is arranged at the middle position of the cross plate.

4. The detachable rectifier water meter according to claim 2, characterized in that: The connecting rod is arranged at the end of one end of the first conduit where water enters.

5. The detachable rectifier water meter according to claim 1, characterized in that: The first cylinder is connected to the second cylinder, and a plurality of cross-distributed partitions are arranged in the second cylinder.

6. The detachable rectifier water meter according to claim 5, characterized in that: The partitions are cross-distributed; a baffle is connected between the second cylinder and the inner wall of the water inlet pipe.

7. The detachable rectifier water meter according to claim 1, characterized in that: The sliding tube is relatively slidably arranged in the first conduit, and a clearance fit is adopted between the sliding tube and the first conduit.

8. The detachable rectifier water meter according to claim 1, characterized in that: The first conduits are a plurality of square tubes, and the plurality of the first conduits are arranged side by side in the first cylinder.

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