Hydrodynamic flow sensor

Abstract

The utility model discloses a hydrodynamic flow sensor, and relates to the technical field of flow sensing. Comprising a fixing pipe, a positioning ring is arranged in the fixing pipe, and a plurality of limiting grooves are formed in the fixing pipe; the detection mechanism is arranged in the fixing pipe and used for detecting water flow, the detection mechanism comprises a fixing part and a measuring part, the measuring part is arranged in the fixing pipe and used for metering the water flow, the fixing part is arranged on the outer side of the measuring part and used for fixing the position of the fixing part, and a detection part is further arranged on the outer side of the fixing pipe. Through the arrangement of the fixing pipe and the fixing piece, the fixing pipe, the limiting groove, the positioning ring, the mounting pipe and the limiting plate are matched, so that the mounting pipe can be quickly mounted and dismounted in the using process, corrosion connection of connecting threads between the mounting pipe and the fixing pipe is avoided, and then the dismounting difficulty of the mounting pipe is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flow sensing, in particular to a hydrodynamic flow sensor. Background Art

[0002] A water flow sensor is a water flow sensing instrument that outputs pulse signals or current, voltage and other signals by sensing water flow. The output of this signal is in a certain linear proportion to the water flow, and has corresponding conversion formulas and comparison curves. Therefore, it can be used for water control management and flow calculation. In terms of thermal power, it can be used in conjunction with a transducer to measure the loss of medium energy over a period of time. Water flow sensors include orifice plates, impellers, ultrasonic or electromagnetic measurement methods.

[0003] When using an impeller flow sensor to detect water flow, the mounting pipe and the fixed pipe are mostly connected by threads. In actual use, since the connecting threads between the mounting pipe and the fixed pipe need to be in contact with water for a long time, the threads will corrode during use, which increases the difficulty of disassembling the mounting pipe. Therefore, a hydrodynamic flow sensor is proposed. Utility Model Content

[0004] The purpose of the present utility model is to provide a hydrodynamic flow sensor to solve the problem that the connecting threads between the installation pipe and the fixed pipe need to be in contact with water for a long time, thereby corroding the connection during the use of the threads, thereby increasing the difficulty of disassembling the installation pipe.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A hydrodynamic flow sensor, comprising:

[0007] A fixed tube, wherein a positioning ring is provided inside the fixed tube, and a plurality of limiting grooves are opened inside the fixed tube;

[0008] The detection mechanism is arranged inside the fixed tube and is used to detect the water flow. The detection mechanism includes a fixing part and a measuring part. The measuring part is arranged inside the fixed tube and is used to measure the water flow. The fixing part is arranged outside the measuring part and is used to fix the position of the fixing part.

[0009] Furthermore, a detection component is provided on the outside of the fixing tube.

[0010] Furthermore, the fixing member includes a mounting tube, which is arranged inside the fixing tube, one end of the mounting tube is in conflict with the positioning ring, and the other end of the mounting tube is provided with a plurality of limiting plates, which are adapted to the limiting grooves.

[0011] Furthermore, the mounting tube is provided with a positioning groove relative to the end of the positioning ring, and a positioning pin is provided inside the positioning groove, and the positioning pin is connected to the positioning ring.

[0012] Furthermore, the measuring part includes a plurality of fixing frames, which are connected to the mounting tube. A sliding shaft is provided inside the fixing frame, one end of the sliding shaft is rotatably connected to a connecting shaft, an impeller is provided on the outside of the connecting shaft, and the impeller rotates relative to the fixing frame. A control part for detecting water flow resistance is also provided on the outside of the fixing frame.

[0013] Furthermore, the control component includes a connecting sleeve, which is arranged between the fixed frames, the connecting sleeve is arranged on the outside of the sliding shaft, and the connecting sleeve moves relative to the sliding shaft. A spring and an adjustment plate are respectively provided inside the connecting sleeve, and the adjustment plate is screwed to the sliding shaft.

[0014] The beneficial effects of the utility model are as follows:

[0015] The utility model realizes the cooperation of the fixing tube, the limiting groove, the positioning ring, the mounting tube and the limiting plate through the arrangement of the fixing tube and the fixing piece, so that the mounting tube can be quickly installed and disassembled during use, avoiding corrosion of the connecting thread between the mounting tube and the fixing tube, thereby reducing the difficulty of disassembling the mounting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is the main sectional view of the utility model;

[0018] Figure 3 This is a partial cross-sectional view of the fixed pipe of the utility model;

[0019] Figure 4 This is an enlarged view of the fixed pipe of the utility model;

[0020] Figure 5 It is a partial cross-sectional view of the fixing member of the utility model;

[0021] Figure 6 This utility model Figure 5 Enlarged view of part A in the middle;

[0022] Figure numerals: 1. Fixed tube; 101. Positioning ring; 102. Limiting groove; 2. Fixing part; 201. Mounting tube; 202. Impeller; 203. Connecting shaft; 204. Sliding shaft; 205. Fixed frame; 206. Limiting plate; 3. Detection part; 4. Control part; 401. Connecting sleeve; 402. Spring; 403. Adjusting plate. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0026] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0027] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0028] like Figures 1 to 6As shown, a hydrodynamic flow sensor includes: a fixed tube 1, a positioning ring 101 is provided inside the fixed tube 1, and a plurality of limit grooves 102 are opened inside the fixed tube 1; a detection mechanism is arranged inside the fixed tube 1, and is used to detect water flow, the detection mechanism includes a fixing part 2 and a measuring part, the measuring part is arranged inside the fixed tube 1, and is used to measure the water flow, and the fixing part 2 is arranged outside the measuring part, and is used to fix the position of the fixing part 2. Specifically, in the process of detecting the water flow, the fixed tube 1 is first connected to the water pipe, so that the water flow is detected in conjunction with the detection part 3 during use. When the measuring part is damaged or needs to be cleaned, the fixing part 2 and the fixed tube 1 can be quickly separated, thereby improving the stability of the fixing part 2 during disassembly. The measuring part can use the flowing water as power during use to detect the water flow.

[0029] like Figures 1 to 6 As shown, a detection component 3 is further provided on the outside of the fixed tube 1. Specifically, the detection component 3 and the fixed tube 1 can be connected by bolts or snaps, which facilitates the installation and disassembly of the detection component 3 during use. The detection component 3 can connect the water flow data through the rotation speed of the measuring component during use. The detection component 3 is a prior art and will not be explained in detail here.

[0030] like Figures 1 to 6 As shown, the fixing member 2 includes a mounting tube 201, which is arranged inside the fixing tube 1, one end of the mounting tube 201 conflicts with the positioning ring 101, and the other end of the mounting tube 201 is provided with a plurality of limiting plates 206, which are adapted to the limiting grooves 102. Specifically, during the installation process, the mounting tube 201 is first positioned by the positioning ring 101 to ensure the accuracy of the installation position of the mounting tube 201. After the mounting tube 201 is placed, the position of the mounting tube 201 is fixed by the cooperation of the limiting plates 206 and the limiting grooves 102, avoiding the use of screws to fix the mounting tube 201 during use. The thread connection causes corrosion of the thread. A torsion spring is provided between the limit plate 206 and the mounting tube 201, so that the limit plate 206 is pressed into the limit groove 102 by the torsion spring during use to prevent the limit plate 206 from rotating during use. The number of limit grooves 102 and limit plates 206 is selected according to the size of the mounting tube 201, so as to ensure the stability of the mounting tube 201 during use. The adaptation of the limit plate 206 to the limit groove 102 means that the limit plate 206 can be inserted into the limit groove 102 during the installation of the mounting tube 201, thereby realizing the position limitation of the mounting tube 201 and the limit plate 206.

[0031] like Figures 1 to 6As shown, the mounting tube 201 is further provided with a positioning groove relative to the positioning ring 101 end, and a positioning pin is provided inside the positioning groove, and the positioning pin is connected to the positioning ring 101. Specifically, the shape of the positioning pin can be cylindrical, square cylindrical or hexagonal, etc. During the installation of the mounting tube 201, the position of the mounting tube 201 is positioned by the cooperation of the positioning pin and the positioning groove to ensure that the limiting plate 206 can be accurately inserted into the limiting groove 102. At the same time, the positioning pin and the positioning groove can further limit the mounting tube 201 to prevent the mounting tube 201 from rotating relative to the fixed tube 1 during use.

[0032] like Figures 1 to 6 As shown, the measuring part includes a plurality of fixing frames 205, which are connected to the mounting tube 201. A sliding shaft 204 is provided inside the fixing frame 205, and one end of the sliding shaft 204 is rotatably connected to a connecting shaft 203. An impeller 202 is provided on the outside of the connecting shaft 203, and the impeller 202 rotates relative to the fixing frame 205. A control part 4 for detecting water flow resistance is also provided on the outside of the fixing frame 205. Specifically, when the impeller 202 detects the water flow, the impeller 202 rotates under the action of the water flow, and the detection part 3 detects the state of the impeller 202, thereby judging the flow rate according to different rotation speeds.

[0033] like Figures 1 to 6 As shown, the control member 4 includes a connecting sleeve 401, which is arranged between the fixing frames 205, and the connecting sleeve 401 is sleeved on the outside of the sliding shaft 204, and the connecting sleeve 401 moves relative to the sliding shaft 204. A spring 402 and an adjustment plate 403 are respectively provided inside the connecting sleeve 401, and the adjustment plate 403 is screwed to the sliding shaft 204. Specifically, a position detector is also provided inside the connecting sleeve 401, and the external detector can detect the displacement distance of the sliding shaft 204. The position detector is a prior art and will not be explained in detail here. When impurities in the water adhere to the outside of the impeller 202, the impurities will block the water flow. While the impurities block the water, the water will push the impeller 202 and the sliding shaft 204 relative to the fixing frame 20 5 moves, and the sliding shaft 204 during the movement can be detected by a position detector. The position detector is connected to the detection member 3 through a wire, so that when the sliding shaft 204 is detected to have moved, an alarm signal is issued through the position detector box detection member 3. During use, the sliding shaft 204 can drive the adjustment plate 403 to move, and the moving adjustment plate 403 can adjust the elastic force of the spring 402, so as to adjust the resistance threshold of the impeller 202 according to actual conditions. The shape of the adjustment plate 403 can be a hexagonal disk or an elliptical disk, so as to avoid the adjustment plate 403 and the sliding shaft 204 from rotating synchronously when the elastic force of the spring 402 is adjusted, thereby ensuring the stability of the elastic force adjustment of the sliding shaft 204.

[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrodynamic flow sensor, characterized in that: include: A fixed tube (1), wherein a positioning ring (101) is provided inside the fixed tube (1), and a plurality of limiting grooves (102) are opened inside the fixed tube (1); A detection mechanism is arranged inside the fixed pipe (1) and is used to detect water flow. The detection mechanism comprises a fixing member (2) and a measuring member. The measuring member is arranged inside the fixed pipe (1) and is used to measure the water flow. The fixing member (2) is arranged outside the measuring member and is used to fix the position of the fixing member (2).

2. A hydrodynamic flow sensor according to claim 1, characterized in that: A detection component (3) is also provided on the outside of the fixed tube (1).

3. A hydrodynamic flow sensor according to claim 2, characterized in that: The fixing member (2) comprises a mounting tube (201), the mounting tube (201) being arranged inside the fixing tube (1), one end of the mounting tube (201) being in conflict with the positioning ring (101), and the other end of the mounting tube (201) being provided with a plurality of limiting plates (206), the limiting plates (206) being adapted to the limiting grooves (102).

4. A hydrodynamic flow sensor according to claim 3, characterized in that: The mounting tube (201) is further provided with a positioning groove at the end relative to the positioning ring (101), and a positioning pin is provided inside the positioning groove, and the positioning pin is connected to the positioning ring (101).

5. A hydrodynamic flow sensor according to claim 3, characterized in that: The measuring member comprises a plurality of fixing frames (205), the fixing frames (205) being connected to the mounting tube (201), a sliding shaft (204) being provided inside the fixing frames (205), one end of the sliding shaft (204) being rotatably connected to a connecting shaft (203), an impeller (202) being provided on the outside of the connecting shaft (203), and the impeller (202) rotating relative to the fixing frames (205), and a control member (4) for detecting water flow resistance being further provided on the outside of the fixing frames (205).

6. A hydrodynamic flow sensor according to claim 5, characterized in that: The control member (4) includes a connecting sleeve (401), the connecting sleeve (401) is arranged between the fixing frame (205), the connecting sleeve (401) is sleeved on the outside of the sliding shaft (204), and the connecting sleeve (401) moves relative to the sliding shaft (204), and a spring (402) and an adjustment plate (403) are respectively provided inside the connecting sleeve (401), and the adjustment plate (403) is screwed to the sliding shaft (204).

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