Water meter structure capable of quickly adjusting flow

Abstract

The utility model relates to the technical field of water meters, in particular to a water meter structure capable of quickly adjusting flow, which comprises a water meter shell and a movement shell arranged in an inner cavity of the water meter shell, the water meter shell is provided with an installation cavity for installation of the movement shell and communicated with an inner cavity of the water outlet end pipe, a main flow channel communicated with an inner cavity of the water inlet end pipe and a secondary flow channel communicated with the inner cavity of the water inlet end pipe, the secondary flow channel is communicated with the installation cavity, and the movement shell is provided with a metering mechanism and an impeller cavity. An impeller of the metering mechanism is arranged in an impeller cavity, a metering water inlet hole communicated with the impeller cavity and the main flow channel and a metering water outlet hole communicated with the impeller cavity and an inner cavity of the water outlet end pipe are formed in the machine core shell, and the water meter shell is provided with a cut-off end pipe communicated with the secondary flow channel. And the intercepting end pipe is provided with an adjusting piece for adjusting the flow of the secondary runner. The device has the effect of conveniently adjusting the flow of water flowing into the metering mechanism.

Description

Technical Field

[0001] The present application relates to the technical field of water meters, and in particular to a water meter structure capable of quickly adjusting flow. Background Art

[0002] A water meter is an instrument that measures water flow, mostly the cumulative flow of water. There is an inlet and an outlet at each end of the water meter. There are generally two flow channels in the case of the water meter. Water enters from the inlet and is diverted by the case. One part of the water flows into the metering mechanism for metering, and the other part is directly discharged from the outlet through the bypass hole of the case and does not participate in the metering. The water flow rate or cumulative flow is known from the data fed back by the metering mechanism.

[0003] Due to errors in processing and assembly, the detection data of different metering mechanisms will be different. Therefore, the metering mechanism needs to be calibrated before the water meter leaves the factory. By adjusting the water flow rate flowing into the metering mechanism, the data differences between different metering mechanisms can be compensated, thereby ensuring that the data feedback of each water meter for the same water flow rate is consistent. In the related art, the flow adjustment structure is usually set inside the metering mechanism. When adjusting and calibrating, the metering mechanism needs to be repeatedly disassembled and assembled, which is extremely inconvenient and inefficient to adjust, so further improvement is needed. Utility Model Content

[0004] In order to facilitate the regulation of the water flow into the metering mechanism and improve the regulation efficiency, the present application provides a water meter structure that can quickly regulate the flow.

[0005] The water meter structure that can quickly adjust the flow rate provided in this application adopts the following technical solution:

[0006] A water meter structure capable of quickly adjusting flow rate comprises a water meter housing and a movement housing arranged in the inner cavity of the water meter housing, wherein one side of the water meter housing is provided with an inlet end pipe, and the other side of the water meter housing is provided with an outlet end pipe, the water meter housing comprises an installation chamber for installing the movement housing and connected to the inner cavity of the water outlet end pipe, a main flow channel connected to the inner cavity of the water inlet end pipe, and a secondary flow channel connected to the inner cavity of the water inlet end pipe, the secondary flow channel being connected to the installation chamber, the movement housing is provided with a metering mechanism, the movement housing has an impeller chamber, the impeller of the metering mechanism is built in the impeller chamber, the movement housing is provided with a metering water inlet hole connected to the impeller chamber and the main flow channel, and a metering water outlet hole connected to the impeller chamber and the inner cavity of the water outlet end pipe, the water meter housing has an intercepting end pipe connected to the secondary flow channel, and the intercepting end pipe is provided with an adjusting member for adjusting the flow rate of the secondary flow channel.

[0007] By adopting the above technical scheme, water flows in from the water inlet end pipe and is divided. A part of the water flows through the secondary flow channel and the installation chamber in sequence and flows out from the water outlet end pipe. This water flow does not participate in the metering. The other part of the water flows through the main channel, the metering water inlet hole, the impeller chamber, the metering water outlet hole in sequence and flows out from the water outlet end pipe. This water flow participates in the metering. In the testing stage of the water meter, the water flow flowing into the secondary flow channel is directly adjusted through the adjusting piece on the intercepting end pipe, and then the flow size of the secondary flow channel is adjusted, and then the flow size of the flowing into the main flow channel is indirectly adjusted, so as to adjust the water flow flowing into the metering mechanism, thereby calibrating the data fed back by the metering mechanism until the data fed back by the metering mechanism is within the preset error range. There is no need to disassemble the movement, and it is very convenient to use.

[0008] Preferably, the inner hole of the cut-off end pipe is a threaded hole connected to the secondary flow channel, and the adjusting member is an adjusting block threadably connected to the threaded hole, and the adjusting block can slide into the secondary flow channel.

[0009] By adopting the above technical solution, the adjusting block is threadedly connected to the threaded hole of the cut-off end pipe, and the position of the adjusting block is adjusted by rotating the adjusting block, thereby changing the gap size between the adjusting block and the secondary flow channel, and then adjusting the flow size of the secondary flow channel.

[0010] Preferably, a rotation groove is provided at a port of the regulating block close to the cut-off end pipe, and the cross section of the rotation groove is a polygon.

[0011] By adopting the above technical solution, when the adjusting block needs to be rotated, a special tool is inserted into the rotating groove on the adjusting block to facilitate the rotation of the adjusting block.

[0012] Preferably, the inner wall of the secondary flow channel is provided with a plug hole for inserting the end of the regulating block.

[0013] By adopting the above technical solution, when the end of the regulating block is inserted into the insertion hole, the secondary flow channel can be completely intercepted.

[0014] Preferably, the end of the cut-off end pipe is detachably connected with a plugging piece for sealing the threaded hole.

[0015] By adopting the above technical solution, a blocking piece is additionally provided, and the blocking piece blocks the threaded hole so that the blocking piece is hidden in the threaded hole, thereby reducing the erroneous rotation operation of the adjustment block.

[0016] Preferably, the blocking member is a blocking bolt threadedly connected to the threaded hole, the nut end face of the blocking bolt abuts against the end face of the cut-off end pipe, and there is a gap between the threaded section end face of the blocking bolt and the adjusting block.

[0017] By adopting the above technical solution, after the sliding position of the adjusting block is adjusted, the blocking bolt is screwed on to cover and hide the adjusting block.

[0018] Preferably, a sealing groove is formed on the end surface of the intercepting end pipe, and the intercepting end pipe is provided with a sealing ring embedded in the sealing groove, and the nut end surface of the sealing bolt abuts against the sealing ring.

[0019] By adopting the above technical solution, a sealing ring is additionally provided to improve the sealing performance between the nut of the plugging bolt and the end face of the intercepting end pipe.

[0020] In summary, the utility model has the following beneficial effects:

[0021] 1. Water flows in from the water inlet pipe and is divided. A part of the water flows through the secondary flow channel and the installation chamber in turn and flows out from the water outlet pipe. This water flow does not participate in the metering. The other part of the water flows through the main flow channel, the metering water inlet hole, the impeller chamber, and the metering water outlet hole in turn and flows out from the water outlet pipe. This water flow participates in the metering. In the test stage of the water meter, the water flow flowing into the secondary flow channel is directly adjusted through the adjustment piece on the interception end pipe, and then the flow size of the secondary flow channel is adjusted, and then the flow size of the main flow channel is indirectly adjusted, so as to adjust the water flow flowing into the metering mechanism, thereby calibrating the data fed back by the metering mechanism until the data fed back by the metering mechanism is within the preset error range. There is no need to disassemble the movement, and it is very convenient to use.

[0022] 2. The adjusting block is threadedly connected to the threaded hole of the cut-off end pipe. The position of the adjusting block is adjusted by rotating the adjusting block, thereby changing the gap between the adjusting block and the secondary flow channel, thereby adjusting the flow rate of the secondary flow channel;

[0023] 3. After adjusting the sliding position of the adjusting block, screw on the sealing bolt to cover and hide the adjusting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a water meter structure that can quickly adjust the flow rate;

[0025] Figure 2 It is a schematic diagram of the internal structure of the water meter housing and the movement housing;

[0026] Figure 3 yes Figure 2 A local enlarged schematic diagram at point A.

[0027] In the figure, 1. water meter housing; 11. water inlet end pipe; 12. water outlet end pipe; 13. installation chamber; 14. main flow channel; 15. secondary flow channel; 16. filter screen cartridge; 2. movement housing; 21. impeller chamber; 22. metering water inlet hole; 23. metering water outlet hole; 3. interception end pipe; 31. sealing ring; 32. threaded hole; 4. adjustment block; 41. rotating groove; 5. blocking bolt. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 This application is described in further detail.

[0029] The present application embodiment discloses a water meter structure capable of quickly adjusting flow rate, referring to Figure 1 , Figure 2 , comprising a water meter housing 1 and a core housing 2 built into the water meter housing 1. One side of the water meter housing 1 has an inlet end pipe 11, and the inlet end pipe 11 is inserted with a filter screen 16, and the other side of the water meter housing 1 has an outlet end pipe 12. The water meter housing 1 has an installation chamber 13, a main flow channel 14 and a secondary flow channel 15, the core housing 2 is installed in the installation chamber 13, and there is a gap between the outer wall of the core housing 2 and the inner wall of the installation chamber 13, the installation chamber 13 is connected to the secondary flow channel 15 and the inner cavity of the outlet end pipe 12, the secondary flow channel 15 is connected to the inner cavity of the inlet end pipe 11, and the main flow channel 14 is connected to the inner cavity of the inlet end pipe 11.

[0030] The movement housing 2 is provided with a metering mechanism, the lower part of the movement housing 2 is fixedly arranged in the main flow channel 14, the lower part of the movement housing 2 has an impeller chamber 21, and the impeller of the metering mechanism is built in the impeller chamber 21. The lower side wall of the movement housing 2 is provided with a metering water inlet 22 connected to the impeller chamber 21 and the main flow channel 14, and a metering water outlet 23 connected to the impeller chamber 21 and the inner cavity of the water outlet pipe 12.

[0031] Reference Figure 2 , Figure 3 The water meter housing 1 has a cut-off end pipe 3 connected to the secondary flow channel 15, and the cut-off end pipe 3 is provided with an adjusting member for adjusting the flow of the secondary flow channel 15. Specifically, the inner hole of the cut-off end pipe 3 is a threaded hole 32 connected to the secondary flow channel 15, and the axis of the threaded hole 32 is perpendicular to the extension direction of the secondary flow channel 15. The adjusting member is an adjusting block 4 threadedly connected to the threaded hole 32, and the adjusting block 4 is provided with a rotation groove 41 near the port of the cut-off end pipe 3, and the cross section of the rotation groove 41 is polygonal. The adjusting block 4 can slide into the secondary flow channel 15, and the inner wall of the secondary flow channel 15 is provided with a socket for the end of the adjusting block 4 to be inserted.

[0032] The end of the cut-off end pipe 3 is detachably connected with a plugging member for plugging the threaded hole 32, and the plugging member is a plugging bolt 5 threadedly connected to the threaded hole 32. A sealing groove is provided on the end face of the cut-off end pipe 3, and a sealing ring 31 is provided on the cut-off end pipe 3 to be embedded in the sealing groove. The nut end face of the plugging bolt 5 abuts against the sealing ring 31, and there is a gap between the threaded end face of the plugging bolt 5 and the adjusting block 4.

[0033] The implementation principle of a water meter structure capable of quickly adjusting flow in the embodiment of the present application is as follows: water flows in from the water inlet end pipe 11 and is diverted, a part of the water flows into the secondary flow channel 15, the gap between the inner wall of the installation chamber 13 and the outer wall of the movement housing 2 in turn, and flows out from the water outlet end pipe 12, and this water flow does not participate in the metering, and another part of the water flows into the main flow channel 14, the metering water inlet hole 22, the impeller chamber 21, the metering water outlet hole 23 in turn, and flows out from the water outlet end pipe 12, and this water flow participates in the metering; in the test stage before the water meter leaves the factory, after the hexagonal wrench is inserted into the rotating groove 41 on the adjustment block 4, and the adjustment block 4 is rotated, the position of the adjustment block 4 is adjusted, thereby changing the gap size between the adjustment block 4 and the secondary flow channel 15, and then adjusting the flow size of the secondary flow channel 15, and then indirectly adjusting the flow size of the flow into the main flow channel 14, so as to adjust the water flow into the metering mechanism, thereby calibrating the data fed back by the metering mechanism, until the data fed back by the metering mechanism is within the preset error range, and after the adjustment is completed, the plugging bolt 5 is locked.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water meter structure capable of quickly adjusting flow, characterized in that: The invention comprises a water meter housing (1) and a movement housing (2) arranged in the inner cavity of the water meter housing (1), wherein one side of the water meter housing (1) has a water inlet end pipe (11), and the other side of the water meter housing (1) has a water outlet end pipe (12), and the water meter housing (1) has an installation chamber (13) for installing the movement housing (2) and connected to the inner cavity of the water outlet end pipe (12), a main flow channel (14) connected to the inner cavity of the water inlet end pipe (11), and a secondary flow channel (15) connected to the inner cavity of the water inlet end pipe (11), wherein the secondary flow channel (15) is connected to the installation chamber (13), and the movement housing (2) is connected to the inner cavity of the water outlet end pipe (12). The core housing (2) is provided with a metering mechanism, the core housing (2) has an impeller chamber (21), an impeller of the metering mechanism is built into the impeller chamber (21), the core housing (2) is provided with a metering water inlet hole (22) connected to the impeller chamber (21) and the main flow channel (14), and a metering water outlet hole (23) connected to the impeller chamber (21) and the inner cavity of the water outlet end pipe (12), the water meter housing (1) has a cut-off end pipe (3) connected to the secondary flow channel (15), and the cut-off end pipe (3) is provided with a regulating member for regulating the flow of the secondary flow channel (15).

2. A water meter structure capable of quickly adjusting flow rate according to claim 1, characterized in that: The inner hole of the cut-off end pipe (3) is a threaded hole (32) connected to the secondary flow channel (15), and the adjusting member is an adjusting block (4) threadedly connected to the threaded hole (32), and the adjusting block (4) can slide into the secondary flow channel (15).

3. A water meter structure capable of quickly adjusting flow rate according to claim 2, characterized in that: The regulating block (4) is provided with a rotation groove (41) at a port close to the cut-off end pipe (3), and the cross section of the rotation groove (41) is polygonal.

4. A water meter structure capable of quickly adjusting flow rate according to claim 2, characterized in that: The inner wall of the secondary flow channel (15) is provided with an insertion hole for inserting the end of the regulating block (4).

5. A water meter structure capable of quickly adjusting flow rate according to claim 2, characterized in that: The end of the intercepting end pipe (3) is detachably connected to a plugging piece for plugging the threaded hole (32).

6. A water meter structure capable of quickly adjusting flow rate according to claim 5, characterized in that: The blocking member is a blocking bolt (5) threadedly connected to the threaded hole (32); the nut end face of the blocking bolt (5) abuts against the end face of the cut-off end pipe (3); and a gap is provided between the threaded end face of the blocking bolt (5) and the adjusting block (4).

7. A water meter structure capable of quickly adjusting flow rate according to claim 6, characterized in that: The end surface of the intercepting end pipe (3) is provided with a sealing groove, and the intercepting end pipe (3) is provided with a sealing ring (31) embedded in the sealing groove, and the nut end surface of the plugging bolt (5) abuts against the sealing ring (31).

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