A liquid flow detection device

Abstract

This application relates to the field of flow detection equipment, and more particularly to a liquid flow detection device, comprising a housing, within which a flow chamber for liquid flow is formed along its length. A movable component and a fixed component are disposed within the flow chamber. The movable component is located near the inlet of the flow chamber, and the fixed component is located near the outlet of the flow chamber. A reset component is provided between the movable component and the fixed component. A flow channel is formed along the length of the movable component, passing through the fixed component and communicating with the flow chamber. The purpose of this application is to enable the flow detection device to adapt to different types of connectors, thereby effectively improving its adaptability; simultaneously, it improves the sensitivity of its flow detection, thereby effectively enhancing its sensitivity during the flow detection process.

Description

Technical Field

[0001] This application relates to the field of flow detection equipment, and in particular to a liquid flow detection device. Background Technology

[0002] A liquid flow detection device is a device used to measure the flow rate of liquids. It is usually installed in a pipeline system to monitor and control the flow of liquids. These devices have wide applications in industrial production, water treatment, energy metering and other fields.

[0003] In related technologies, traditional liquid flow detection devices are usually only used on three-way connectors to detect the flow rate of liquid in ball valves, but are not applicable to two-way connectors, thus limiting the adaptability of the flow detection device. At the same time, most flow detection devices can only detect the flow rate at high flow rates, and cannot detect the flow rate at low flow rates, resulting in poor sensitivity of the flow detection device, which is not conducive to its daily use. Utility Model Content

[0004] This application provides a liquid flow detection device, the purpose of which is to enable the flow detection device to adapt to different types of connectors, so as to effectively improve its adaptability; at the same time, the sensitivity of its flow detection is improved, so as to effectively improve its sensitivity in the flow detection process.

[0005] This application provides a liquid flow detection device, which adopts the following technical solution:

[0006] A liquid flow detection device includes a housing, within which a flow chamber for liquid flow is formed along its length. The flow chamber contains a movable component and a fixed component. The movable component is located near the inlet of the flow chamber, and the fixed component is located near the outlet of the flow chamber. A reset component is provided between the movable component and the fixed component. A flow channel is formed along the length of the movable component, passing through the fixed component and communicating with the flow chamber.

[0007] By adopting the above technical solution, in specific use, the liquid flows into the flow channel from the inlet of the flow chamber, and then flows to the outlet of the flow chamber through the flow channel. During the flow of the liquid in the flow channel, the moving part slides closer to the fixed part. When the position of the moving part changes within the flow chamber, a reed switch detects the positional change, thereby detecting the liquid flow rate within the flow chamber. When the water flow stops, a reset component drives the moving part to slide away from the fixed part until the moving part is fully reset.

[0008] The testing device is applicable to both tee and two-way connectors, which improves the overall adaptability of the testing device.

[0009] Meanwhile, the flow channel has a small opening size, which allows the flow to flow into the flow channel even when the flow in the flow chamber is small, causing the moving parts to slide. This enables the reed switch to detect small flow rates, which helps to improve the overall sensitivity of the detection device.

[0010] Preferably, the top of the outer casing is provided with a reed switch.

[0011] By adopting the above technical solution, the reed switch functions as a magnetic flux conductor. When the moving part moves to the designated position and forms a closure with the reed switch, the corresponding signal can be transmitted to detect the water flow.

[0012] Preferably, the reset member includes a first magnet and a second magnet, the first magnet is disposed at the end of the movable member near the fixed member, the second magnet is disposed at the end of the fixed member near the movable member, and there is a repulsive force between the first magnet and the second magnet.

[0013] By adopting the above technical solution, when the water flow in the flow chamber stops, the repulsive force between the first and second magnets drives the movable part to slide away from the fixed part until the movable part is reset. The repulsive force between the first and second magnets is relatively stable, and using the first and second magnets to reset the movable part helps to ensure the stability of the movable part during the reset process.

[0014] Preferably, both the movable part and the fixed part have slots at their ends, and the first magnet and the second magnet are respectively engaged into the corresponding slots.

[0015] By adopting the above technical solution, the positions of the first magnet and the second magnet are limited by the slot, thereby effectively ensuring the stability of the interaction between the first magnet and the second magnet.

[0016] Preferably, the reset element is a spring, which is sleeved on the end of the movable element near the fixed element.

[0017] By adopting the above technical solution, when liquid flows through the flow channel, the spring is gradually compressed as the moving part slides towards the fixed part; when the water flow stops, the spring drives the moving part to slide away from the fixed part during the recovery process until the moving part returns to its original position. Using a spring as the reset component, the material is readily available and easy to replace consumable parts.

[0018] Preferably, the end of the movable member away from the fixed member is tapered.

[0019] By adopting the above technical solution, as the liquid flow rate in the flow chamber and flow channel gradually increases and the moving part gradually slides towards the fixed part, the gap between the end of the moving part away from the fixed part and the inner wall of the outer shell will become larger and larger. As a result, the detection device not only has high detection sensitivity when it is working, but also has a large flow rate that does not affect its daily use.

[0020] Preferably, a retaining ring is embedded in the flow chamber, and the end of the fixed member away from the movable member is connected to the retaining ring.

[0021] By adopting the above technical solution, the retaining ring is used to further limit the position of the fixing component, thereby effectively ensuring the stability of the fixing component installed in the flow chamber.

[0022] Preferably, a sealing ring is fitted inside the outer casing near the outlet of the flow chamber.

[0023] By adopting the above technical solution, the sealing ring can effectively enhance the sealing performance of the shell and effectively prevent water leakage.

[0024] Preferably, the inner wall of the outer casing has a groove, and the sealing ring is embedded in the groove.

[0025] By adopting the above technical solution, the sealing ring is limited by the groove, so as to effectively ensure the stability of the sealing ring installed in the housing.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. In practical use, the liquid flows into the flow channel from the inlet of the flow chamber and then flows to the outlet of the flow chamber. During the flow of the liquid in the flow channel, the moving part slides closer to the fixed part. When the position of the moving part changes within the flow chamber, a reed switch detects the change in position, thereby detecting the liquid flow rate within the flow chamber. When the water flow stops, a reset component moves the moving part away from the fixed part until the moving part is fully reset.

[0028] The testing device is applicable to both tee and two-way connectors, which improves the overall adaptability of the testing device.

[0029] Meanwhile, the flow channel has a small opening size, which allows the flow to flow into the flow channel even when the flow in the flow chamber is small, causing the moving parts to slide. This enables the reed switch to detect small flow rates, which helps to improve the overall sensitivity of the detection device.

[0030] 2. When the water flow in the flow chamber stops, the repulsive force between the first and second magnets drives the movable part to slide away from the fixed part until the movable part is reset. The repulsive force between the first and second magnets is relatively stable, and using the first and second magnets to reset the movable part helps to ensure the stability of the movable part during the reset process.

[0031] 3. The end of the movable part away from the fixed part is tapered. This means that as the liquid flow rate in the flow chamber and flow channel gradually increases and the movable part gradually slides closer to the fixed part, the gap between the end of the movable part away from the fixed part and the inner wall of the outer shell will become larger and larger. As a result, the detection device not only has high detection sensitivity but also allows for a large flow rate, without affecting its daily use. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the embodiments of this application.

[0033] Reference numerals: 1. Outer shell; 2. Flow chamber; 3. Moving part; 4. Fixed part; 5. Reset part; 51. First magnet; 52. Second magnet; 6. Flow channel; 7. Reed switch; 8. Slot; 9. Retaining ring; 10. Sealing ring; 11. Groove. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1 This application will be described in further detail below.

[0035] Example:

[0036] This application discloses a liquid flow detection device, referring to... Figure 1 The device includes an outer casing 1. A flow chamber 2 for liquid flow is formed through the length of the outer casing 1. A movable component 3 and a fixed component 4 are sequentially installed within the flow chamber 2 along the length of the outer casing 1. The movable component 3 is movably installed within the flow chamber 2, and the fixed component 4 is fixedly installed within the flow chamber 2. The movable component 3 is located near the inlet of the flow chamber 2, and the fixed component 4 is located near the outlet of the flow chamber 2. A reset component 5 is provided between the movable component 3 and the fixed component 4. A flow channel 6 is formed through the movable component 3 along its length, passing through the fixed component 4 and communicating with the flow chamber 2. A reed switch 7 is installed on the top of the outer casing 1, and a corresponding sleeve is fitted around the reed switch 7 for protection.

[0037] In practical use, the liquid flows into the flow channel 6 from the inlet of the flow chamber 2, and then flows to the outlet of the flow chamber 2 through the flow channel 6. During the flow of the liquid in the flow channel 6, the movable part 3 slides closer to the fixed part 4. The reed switch 7 acts as a magnetic conductor; when the movable part 3 moves to the designated position and forms a closure with the reed switch 7, a corresponding signal can be transmitted to detect the water flow rate. When the water flow stops, the reset part 5 drives the movable part 3 to slide away from the fixed part 4 until the movable part 3 has fully reset.

[0038] The testing device is applicable to both tee and two-way connectors, which improves the overall adaptability of the testing device.

[0039] In this embodiment, the flow channel 6 has a small opening size, which allows the flow in the flow chamber 2 to flow into the flow channel 6 even when the flow is small, thus driving the movable part 3 to slide, thereby enabling the detection of small flow rates and improving the overall sensitivity of the detection device.

[0040] In this embodiment, refer to Figure 1 The end of the movable part 3 away from the fixed part 4 is tapered. This means that as the liquid flow rate in the flow chamber 2 and the flow channel 6 gradually increases and the movable part 3 gradually slides closer to the fixed part 4, the gap between the end of the movable part 3 away from the fixed part 4 and the inner wall of the outer shell 1 will become larger and larger. As a result, the detection device not only has high detection sensitivity but also a large flow rate, which does not affect its daily use.

[0041] Specifically, refer to Figure 1 The reset member 5 includes a first magnet 51 and a second magnet 52. The first magnet 51 is installed at one end of the movable member 3 near the fixed member 4, and the second magnet 52 is installed at one end of the fixed member 4 near the movable member 3. The first magnet 51 and the second magnet 52 are in a repulsive relationship.

[0042] When the water flow in the flow chamber 2 stops, the repulsive force between the first magnet 51 and the second magnet 52 drives the movable part 3 to slide away from the fixed part 4 until the movable part 3 is reset. The repulsive force between the first magnet 51 and the second magnet 52 is relatively stable. Using the first magnet 51 and the second magnet 52 to reset the movable part 3 helps to ensure the stability of the movable part 3 during the reset process.

[0043] The reset element 5 can also be a spring, which is sleeved on the end of the movable element 3 near the fixed element 4. When liquid flows through the flow channel 6, the spring is gradually compressed as the movable element 3 slides toward the fixed element 4; when the water flow stops, the spring drives the movable element 3 to slide away from the fixed element 4 as it recovers its deformation, until the movable element 3 is reset. Using a spring as the reset element 5 is convenient because the material is readily available and easy to replace worn parts.

[0044] Specifically, refer to Figure 1 Both the movable part 3 and the fixed part 4 have slots 8 at their ends, and the first magnet 51 and the second magnet 52 are respectively engaged into the corresponding slots 8. The slots 8 limit the position of the first magnet 51 and the second magnet 52, thereby effectively ensuring the stability of the interaction between the first magnet 51 and the second magnet 52.

[0045] Furthermore, referring to Figure 1 A retaining ring 9 is embedded vertically inside the flow chamber 2, and the end of the fixed member 4 away from the movable member 3 is connected to the retaining ring 9. The retaining ring 9 further limits the position of the fixed member 4, thereby effectively ensuring the stability of the fixed member 4 installed in the flow chamber 2.

[0046] Furthermore, referring to Figure 1 A sealing ring 10 is fitted inside the outer casing 1 near the outlet of the flow chamber 2. The sealing ring 10 can effectively enhance the sealing of the inside of the outer casing 1 and effectively prevent water leakage from the outer casing 1.

[0047] Specifically, refer to Figure 1 The inner wall of the outer casing 1 has an annular groove 11, and the sealing ring 10 is embedded in the groove 11. The groove 11 is used to limit the sealing ring 10, so as to effectively ensure the stability of the sealing ring 10 installed in the outer casing 1.

[0048] The implementation principle of a liquid flow detection device according to an embodiment of this application is as follows:

[0049] In practical use, the liquid flows into the flow channel 6 from the inlet of the flow chamber 2, and then flows to the outlet of the flow chamber 2 through the flow channel 6. During the flow of the liquid in the flow channel 6, the movable part 3 slides closer to the fixed part 4. The reed switch 7 acts as a magnetic conductor; when the movable part 3 moves to the designated position and forms a closure with the reed switch 7, a corresponding signal can be transmitted to detect the water flow rate. When the water flow stops, the reset part 5 drives the movable part 3 to slide away from the fixed part 4 until the movable part 3 has fully reset.

[0050] The testing device is applicable to both tee and two-way connectors, which improves the overall adaptability of the testing device.

[0051] In this embodiment, the flow channel 6 has a small opening size, which allows the flow in the flow chamber 2 to flow into the flow channel 6 even when the flow is small, thus driving the movable part 3 to slide. This enables the reed switch 7 to detect small flow rates, which helps to improve the overall sensitivity of the detection device.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A liquid flow detecting device, characterized by: The device includes an outer shell (1), and a flow chamber (2) for liquid flow is provided through the outer shell (1) along its length. The flow chamber (2) is provided with a movable part (3) and a fixed part (4). The movable part (3) is located near the inlet of the flow chamber (2), and the fixed part (4) is located near the outlet of the flow chamber (2). A reset part (5) is provided between the movable part (3) and the fixed part (4). The movable part (3) is provided with a flow channel (6) through its length. The flow channel (6) passes through the fixed part (4) and is connected to the flow chamber (2).

2. The liquid flow detection device of claim 1, wherein: The top of the outer casing (1) is provided with a reed switch (7).

3. The liquid flow detection device of claim 1, wherein: The reset member (5) includes a first magnet (51) and a second magnet (52). The first magnet (51) is located at one end of the movable member (3) near the fixed member (4), and the second magnet (52) is located at one end of the fixed member (4) near the movable member (3). The first magnet (51) and the second magnet (52) are in a repulsive relationship.

4. The liquid flow detection device of claim 3, wherein: Both the movable part (3) and the fixed part (4) have slots (8) at their ends, and the first magnet (51) and the second magnet (52) are respectively engaged in the corresponding slots (8).

5. The liquid flow detection device of claim 1, wherein: The reset member (5) is a spring, which is sleeved on the end of the movable member (3) near the fixed member (4).

6. The liquid flow detection device of claim 1, wherein: The end of the movable part (3) away from the fixed part (4) is tapered.

7. The liquid flow detection device of claim 1, wherein: The flow chamber (2) is fitted with a retaining ring (9), and the end of the fixed member (4) away from the movable member (3) is connected to the retaining ring (9).

8. The liquid flow detection device of claim 1, wherein: A sealing ring (10) is fitted inside the outer shell (1) near the outlet of the flow chamber (2).

9. The liquid flow detection device of claim 8, wherein: The inner wall of the outer shell (1) is provided with a groove (11), and the sealing ring (10) is embedded in the groove (11).

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