Indicator capable of detecting liquid flow rate

Abstract

The invention provides an indicator capable of detecting the liquid flow rate, and relates to the technical field of pipeline flow indicating devices. The indicator capable of detecting the liquid flow rate comprises a main body mechanism, the main body mechanism is provided with a connecting channel, the connecting channel is communicated with a water flow channel in the main body mechanism, the connecting channel is movably connected with a cover body, and the cover body is provided with a limiting mechanism. The bottom surface of the circular groove of the cover body is in contact with the upper surface of the connecting channel, a through circular hole is formed in the center of the cover body, a through pipe is fixedly connected to the cylindrical surface of the through circular hole of the cover body, a through circular hole is formed in the center of the through pipe, and a detection mechanism is fixedly connected to the lower surface of the through pipe; the detection mechanism is arranged in the center of the water flow channel of the main body mechanism; the upper surface of the cover body is fixedly connected with a flow velocity display. The flow velocity of the water flow in the pipeline can be quantified, so that a worker can clearly know the flow velocity of the water flow in the pipeline.

Description

Technical Field

[0001] This invention relates to the field of pipeline flow indicator technology, specifically to an indicator capable of detecting the flow rate of liquid. Background Technology

[0002] Flow indicators, also known as liquid flow indicators, are essential accessories for observing the flow of media within pipelines. They are widely used in cooling systems, lubrication systems, fuel supply systems, and industrial production facilities in petroleum, chemical, synthetic fiber, pharmaceutical, and food industries. They allow for real-time observation of the flow and reaction of liquids, gases, and steam, making them indispensable for ensuring normal production. Flow indicators include threaded flow indicators, welded flow indicators, and flanged flow indicators.

[0003] When applying for this invention, the applicant, after searching, discovered a Chinese patent that discloses "a water flow indicator" with application number "201620706724.2". This patent mainly uses the rotation of an impeller with the water flow to observe the water flow velocity. Although the patent description mentions that the water flow can be clearly seen, it cannot accurately detect the water flow velocity. Therefore, based on the applicant's invention, an indicator that can accurately detect the water flow velocity has been invented, solving the problem of accurately detecting the water flow velocity in the pipeline. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an indicator capable of detecting liquid flow rate, thus solving the problem of accurate detection of water flow velocity in pipes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an indicator for detecting liquid flow rate, comprising a main body, a connecting channel provided on the main body, the connecting channel communicating with a water flow channel inside the main body, a cover movably connected to the connecting channel, a limiting mechanism provided on the cover, a circular groove of the same diameter as the connecting channel on the lower surface of the cover, the cylindrical surface of the circular groove of the cover contacting the outer cylindrical surface of the top of the connecting channel, the bottom surface of the circular groove of the cover contacting the upper surface of the connecting channel, a through hole provided at the center of the cover, a central tube fixedly connected to the cylindrical surface of the through hole of the cover, a through hole provided at the center of the central tube, a detection mechanism fixedly connected to the lower surface of the central tube, the detection mechanism being located at the center of the water flow channel of the main body, and a flow rate display fixedly connected to the upper surface of the cover. The detection mechanism is designed to facilitate the detection of liquid flow rate in the water pipe. The limiting mechanism is designed to limit the angle of the cover and fix it on the connecting channel. The central tube is designed to fix the position of the detection mechanism in the water flow channel of the main body and allow the data line from the pressure sensor to be connected to the flow rate display through its center. The flow rate display is designed to facilitate the display of the detection data obtained by the detection mechanism.

[0006] Preferably, the detection mechanism includes a housing, a first sealing ring, a second spring, a pressure shaft, a baffle plate, and a pressure sensor. The housing is fixedly connected to the lower surface of the central tube. The upper surface of the housing is provided with a circular hole that communicates with the central hole of the central tube. The side surface of the housing near the water inlet is provided with a circular hole.

[0007] Preferably, the pressure sensor is fixedly connected to the inner side surface of the housing, and the pressure sensor is connected to the flow rate display via a data cable. The first sealing ring is fixedly connected to the cylindrical surface of the circular hole on the side of the housing. The pressure sensor is provided to facilitate the detection of the pressure transmitted by the pressure shaft and the transmission of this signal to the flow rate display.

[0008] Preferably, the pressure shaft is slidably connected to the inner cylindrical surface of the first sealing ring, the pressure shaft is in contact with the pressure sensor, the baffle plate is fixedly connected to the side surface of the pressure shaft away from the pressure sensor, the baffle plate is on the outside of the housing, and there are multiple second springs, which are fixedly connected between the baffle plate and the housing. The baffle plate is perpendicular to the water flow direction. The second springs are provided to facilitate holding the baffle plate in place, and the baffle plate is provided to facilitate blocking the water flow in the pipe and transmitting the impact it receives to the pressure shaft, thereby squeezing the pressure sensor.

[0009] Preferably, the outer cylindrical surface of the connecting channel is provided with a positioning circular hole near the top edge, the circular groove side surface of the cover is provided with a cylindrical sliding groove, and the outer cylindrical surface of the cover is provided with a rope passage hole, which communicates with the cylindrical sliding groove.

[0010] Preferably, the limiting mechanism includes a sliding shaft, a first spring, a pull rope, and a pull frame. The sliding shaft is slidably connected in a cylindrical groove. The length of the sliding shaft is greater than the depth of the positioning hole, and the length of the sliding shaft is less than the depth of the cylindrical groove. The sliding shaft is provided to facilitate fixing the position of the cover and determining the angle of the cover when it slides simultaneously in the cylindrical groove and the positioning hole, thereby ensuring that the baffle plate is perpendicular to the water flow.

[0011] Preferably, the first spring is fixedly connected between the sliding shaft and the side surface of the cylindrical groove, and the first spring is in a compressed state. The first spring is provided to facilitate pushing the sliding shaft into the positioning hole and pressing it down when the cylindrical groove and the positioning hole coincide.

[0012] Preferably, the pull rope is fixedly connected to the side surface of the sliding shaft away from the connecting channel. The pull rope passes through a rope hole, and the pull frame is fixedly connected to the end of the pull rope away from the sliding shaft, with the pull frame located on the outside of the cover. The pull rope is provided to facilitate pulling the sliding shaft out of the positioning hole.

[0013] Preferably, a hook is fixedly connected to the cylindrical surface of the cover away from the limiting mechanism, and an alarm light is fixedly connected to the upper surface of the cover. The alarm light is connected to the flow rate display via a data cable. The hook is provided to facilitate fixing the position of the pull frame, thereby freeing the fingers from pulling the pull frame.

[0014] Preferably, flanges are provided on both sides of the main body, and connection holes are provided on the flanges. A third sealing ring is fixedly connected to the flanges away from the center of the main body. A mating column is fixedly connected to the cylindrical surface of the central pipe. An annular groove is provided on the cylindrical surface of the mating column. A second sealing ring is fixedly connected in the annular groove of the mating column. The outer cylindrical surface of the second sealing ring and the inner cylindrical surface of the connection channel are in close contact. A through groove is provided on the front surface of the main body. An observation plate is fixedly connected to the through groove surface of the front surface of the main body. The observation plate is provided to facilitate observation of whether the color of the internal liquid is normal.

[0015] Working principle: Water flow in the pipe impacts a baffle plate. The baffle plate, under pressure, pushes the force against a pressure sensor via a pressure shaft. The pressure sensor converts the pressure into an electrical signal, which is transmitted to a flow rate display via a data cable. The flow rate display shows the specific data, thus accurately determining the flow velocity in the pipe. The higher the flow velocity, the greater the pressure on the pressure sensor, and the higher the value on the flow rate display. When the value on the flow rate display exceeds the warning threshold, it sends a signal to an alarm light, which illuminates to alert personnel. (The last sentence appears to be incomplete and possibly refers to a separate section: "cover, middle...") The through pipe and the detection mechanism are fixed together. To ensure that the baffle plate is perpendicular to the water flow direction, during installation, pull the pull frame to fully pull the sliding shaft into the cylindrical slide groove, and hang the pull frame on the hook. Then, insert the through pipe and the detection mechanism from the connecting channel until the circular groove of the cover and the top of the connecting channel are engaged. Remove the pull frame from the hook, and then rotate the cover until the positioning hole and the cylindrical slide groove are aligned. The first spring will push the sliding shaft into the positioning hole, thereby fixing the position of the cover. At this time, the baffle plate and the water flow direction are perpendicular.

[0016] Beneficial effects of this invention: 1. It can quantify the water flow velocity in the pipeline, allowing staff to clearly understand the water flow velocity in the pipeline.

[0017] 2. The use of the limiting mechanism can quickly fix the cover on the connecting channel and ensure that the baffle plate and the water flow direction are perpendicular, thereby ensuring the accuracy of the test results. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an indicator for detecting liquid flow rate proposed in this invention. Figure 2 This is a cross-sectional view of the overall structure of an indicator for detecting liquid flow rate proposed in this invention. Figure 3 This is a cross-sectional view of the connection between the connecting channel and the cover of an indicator for detecting liquid flow rate proposed in this invention when the limiting mechanism is not installed. Figure 4 This is a schematic diagram of the flow rate detection mechanism of an indicator for detecting liquid flow rate proposed in this invention. Figure 5 This is an enlarged view of a partial structure at point A of an indicator for detecting liquid flow rate proposed in this invention; Figure 6 This is a magnified view of a partial structure at point B of an indicator for detecting liquid flow rate proposed in this invention. Figure 7 This is a magnified view of a partial structure at point C of an indicator for detecting liquid flow rate proposed in this invention.

[0019] The components include: 1. Main body; 101. Flange; 102. Connecting hole; 103. Connecting channel; 10301. Positioning round hole; 2. Observation plate; 3. Cover; 301. Cylindrical groove; 302. Rope passage hole; 4. Flow rate display; 5. Alarm light; 6. Central tube; 7. Matching column; 8. Limiting mechanism; 801. Sliding shaft; 802. First spring; 803. Pull rope; 804. Pull frame; 9. Detection mechanism; 901. Housing; 902. First sealing ring; 903. Second spring; 904. Pressure shaft; 905. Barrier plate; 906. Pressure sensor; 10. Second sealing ring; 11. Third sealing ring; 12. Hook. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0021] like Figure 1-7 As shown, this embodiment of the invention provides an indicator for detecting liquid flow rate, including a main body 1. The main body 1 is provided with a connecting channel 103, which is connected to the water flow channel inside the main body 1. A cover 3 is movably connected to the connecting channel 103. A limiting mechanism 8 is provided on the cover 3. A circular groove with the same diameter as the connecting channel 103 is provided on the lower surface of the cover 3. The cylindrical surface of the circular groove of the cover 3 contacts the outer cylindrical surface of the top of the connecting channel 103. The bottom surface of the circular groove of the cover 3 contacts the upper surface of the connecting channel 103. A through circular hole is provided in the center of the cover 3. A central tube 6 is fixedly connected to the cylindrical surface of the through circular hole of the cover 3. A detection mechanism 9 is fixedly connected to the lower surface of the central tube 6. The detection mechanism 9 is located in the center of the water flow channel of the main body 1. A flow rate display 4 is fixedly connected to the upper surface of the cover 3. When the cover 3 is not fixed by the sliding shaft 801, the cover 3 can slide up and down and rotate left and right at the top of the connecting channel 103.

[0022] The cylindrical surface of the cover 3 is fixedly connected to the hook 12 away from the limiting mechanism 8. The upper surface of the cover 3 is fixedly connected to the alarm light 5. The alarm light 5 is connected to the flow rate display 4 via a data cable. Flanges 101 are provided on both sides of the main body 1. Connection holes 102 are provided on the flanges 101. The third sealing ring 11 is fixedly connected to the flanges 101 away from the center of the main body 1. The cylindrical surface of the central tube 6 is fixedly connected to the mating column 7. The cylindrical surface of the mating column 7 is provided with an annular groove. The second sealing ring 10 is fixedly connected in the annular groove of the mating column 7. The outer cylindrical surface of the second sealing ring 10 and the inner cylindrical surface of the connecting channel 103 are in close contact. A through groove is provided on the front surface of the main body 1. The through groove on the front surface of the main body 1 is fixedly connected to the observation plate 2. The observation plate 2 is made of transparent material.

[0023] A positioning circular hole 10301 is provided on the outer cylindrical surface of the connecting channel 103 near the top edge. A cylindrical groove 301 is provided on the circular groove side surface of the cover 3. A rope passage hole 302 is provided on the outer cylindrical surface of the cover 3. The rope passage hole 302 and the cylindrical groove 301 are connected.

[0024] The limiting mechanism 8 includes a sliding shaft 801, a first spring 802, a pull rope 803, and a pull frame 804. The sliding shaft 801 is slidably connected in the cylindrical groove 301. The length of the sliding shaft 801 is greater than the depth of the positioning circular hole 10301 and less than the depth of the cylindrical groove 301. The first spring 802 is fixedly connected between the sliding shaft 801 and the side surface of the cylindrical groove 301. The pull rope 803 is fixedly connected to the side surface of the sliding shaft 801 away from the connecting channel 103. The pull rope 803 passes through the rope hole 302. The pull frame 804 is fixedly connected to the end of the pull rope 803 away from the sliding shaft 801. The pull frame 804 is on the outside of the cover 3. The first spring 802 is in a compressed state.

[0025] The detection mechanism 9 includes a housing 901, a first sealing ring 902, a second spring 903, a pressure shaft 904, a baffle plate 905, and a pressure sensor 906. The housing 901 is fixedly connected to the lower surface of the central tube 6. The upper surface of the housing 901 is provided with a circular hole that communicates with the central hole of the central tube 6. A circular hole is provided on the side surface of the housing 901 near the water inlet. The pressure sensor 906 is fixedly connected to the inner side surface of the housing 901. The pressure sensor 906 is connected to the flow rate display 4 via a data cable. The first sealing ring 902 is fixedly connected to the cylindrical surface of the circular hole on the side of the housing 901. The pressure sensor 906 is model SIN-PX300.

[0026] The pressure shaft 904 is slidably connected to the inner cylindrical surface of the first sealing ring 902. The pressure shaft 904 is in contact with the pressure sensor 906. The baffle plate 905 is fixedly connected to the side surface of the pressure shaft 904 away from the pressure sensor 906. The baffle plate 905 is on the outside of the housing 901. There are multiple second springs 903. The second springs 903 are fixedly connected between the baffle plate 905 and the housing 901. The baffle plate 905 is perpendicular to the water flow direction. The second springs 903 are always in a tensile state.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An indicator for detecting liquid flow rate, comprising a main body (1), characterized in that: The main body (1) is provided with a connecting channel (103), which is connected to the water flow channel inside the main body (1). The connecting channel (103) is movably connected to a cover (3). The cover (3) is provided with a limiting mechanism (8). The lower surface of the cover (3) is provided with a circular groove with the same diameter as the connecting channel (103). The cylindrical surface of the circular groove of the cover (3) is in contact with the outer cylindrical surface of the top of the connecting channel (103). The bottom surface of the circular groove of the cover (3) is in contact with the upper surface of the connecting channel (103). The center of the cover (3) is provided with a through circular hole. The cylindrical surface of the through circular hole of the cover (3) is fixedly connected to a central tube (6). The center of the central tube (6) is provided with a through circular hole. The lower surface of the central tube (6) is fixedly connected to a detection mechanism (9). The detection mechanism (9) is located in the center of the water flow channel of the main body (1). The upper surface of the cover (3) is fixedly connected to a flow rate display (4).

2. The indicator for detecting liquid flow rate according to claim 1, characterized in that: The detection mechanism (9) includes a housing (901), a first sealing ring (902), a second spring (903), a pressure shaft (904), a baffle plate (905), and a pressure sensor (906). The housing (901) is fixedly connected to the lower surface of the central tube (6). The upper surface of the housing (901) is provided with a circular hole that communicates with the central hole of the central tube (6). The side surface of the housing (901) near the water inlet is provided with a circular hole.

3. The indicator for detecting liquid flow rate according to claim 2, characterized in that: The pressure sensor (906) is fixedly connected to the inner side surface of the housing (901). The pressure sensor (906) is connected to the flow rate display (4) via a data cable. The first sealing ring (902) is fixedly connected to the cylindrical surface of the circular hole on the side of the housing (901).

4. An indicator for detecting liquid flow rate according to claim 2, characterized in that: The pressure shaft (904) is slidably connected to the inner cylindrical surface of the first sealing ring (902). The pressure shaft (904) is in contact with the pressure sensor (906). The baffle plate (905) is fixedly connected to the side surface of the pressure shaft (904) away from the pressure sensor (906). The baffle plate (905) is on the outside of the housing (901). There are multiple second springs (903). The second springs (903) are fixedly connected between the baffle plate (905) and the housing (901). The baffle plate (905) is perpendicular to the water flow direction.

5. An indicator for detecting liquid flow rate according to claim 1, characterized in that: The connecting channel (103) has a positioning circular hole (10301) near the top edge on the outer cylindrical surface. The cover (3) has a cylindrical groove (301) on the circular groove side surface. The cover (3) has a rope hole (302) on the outer cylindrical surface. The rope hole (302) and the cylindrical groove (301) are connected.

6. An indicator for detecting liquid flow rate according to claim 1, characterized in that: The limiting mechanism (8) includes a sliding shaft (801), a first spring (802), a pull rope (803), and a pull frame (804). The sliding shaft (801) is slidably connected in a cylindrical groove (301). The length of the sliding shaft (801) is greater than the depth of the positioning hole (10301), and the length of the sliding shaft (801) is less than the depth of the cylindrical groove (301).

7. An indicator for detecting liquid flow rate according to claim 6, characterized in that: The first spring (802) is fixedly connected between the sliding shaft (801) and the side surface of the cylindrical groove (301), and the first spring (802) is in a compressed state.

8. An indicator for detecting liquid flow rate according to claim 6, characterized in that: The pull rope (803) is fixedly connected to the side surface of the sliding shaft (801) away from the connecting channel (103). The pull rope (803) passes through the rope hole (302). The pull frame (804) is fixedly connected to one end of the pull rope (803) away from the sliding shaft (801). The pull frame (804) is on the outside of the cover (3).

9. An indicator for detecting liquid flow rate according to claim 1, characterized in that: The cylindrical surface of the cover (3) is fixedly connected to the hook (12) away from the limiting mechanism (8), and the upper surface of the cover (3) is fixedly connected to the alarm light (5). The alarm light (5) is connected to the flow rate display (4) via a data cable.

10. An indicator for detecting liquid flow rate according to claim 1, characterized in that: The main body (1) is provided with flanges (101) on both sides. The flanges (101) are provided with connecting holes (102). The flanges (101) are fixedly connected to the center away from the main body (1) with a third sealing ring (11). The cylindrical surface of the central tube (6) is fixedly connected to a mating column (7). The cylindrical surface of the mating column (7) is provided with an annular groove. The annular groove of the mating column (7) is fixedly connected to a second sealing ring (10). The outer cylindrical surface of the second sealing ring (10) and the inner cylindrical surface of the connecting channel (103) are in close contact. The front surface of the main body (1) is provided with a through groove. The through groove surface of the front surface of the main body (1) is fixedly connected to an observation plate (2).

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