Impeller flow sensor

Abstract

The utility model discloses a kind of impeller flow sensors, it is related to sensor field, including valve body and transmitter instrument, fixed plate is installed between the valve body and transmitter instrument, the inside of the fixed plate is equipped with connecting groove, the both sides of the connecting groove are equipped with clamping groove, and limit plate is symmetrically arranged in the clamping groove, the bottom of the transmitter instrument is connected with spin-in cylinder, the outer wall of the spin-in cylinder is connected with clamping plate, the spin-in cylinder is clamped with clamping groove by clamping plate, after rotating transmitter instrument, clamping plate rotates to the below of limit plate, transmitter instrument is limited, the bottom of the fixed plate is connected with impeller. The utility model is equipped with fixed plate, clamping plate and impeller, when installing impeller, clamping plate is inserted into clamping groove first, then clamping plate is rotated to the below of limit plate, the installation of clamping plate is realized, so as to connect transmitter instrument and fixed plate.

Description

Technical Field

[0001] This utility model relates to the field of sensors, specifically an impeller flow sensor. Background Technology

[0002] Flow sensors are devices used to measure the velocity or flow rate of liquids or gases. They play an important role in many industrial and scientific applications, such as water treatment, petrochemicals, HVAC systems, and the automotive industry. Impeller flow sensors are sensors that measure fluid flow rate by utilizing the rotation of an impeller. When fluid flows through the sensor, the fluid velocity drives the impeller to rotate; the higher the flow rate, the faster the impeller rotates. They can be used to measure liquids, gases, and other fluids, are highly adaptable, and are particularly suitable for most water treatment and liquid flow monitoring applications. Impeller flow sensors have a simple structure, low cost, and are suitable for many application scenarios.

[0003] Existing technologies, such as the anti-jamming flow sensor structure disclosed in Chinese Patent Publication No. CN212843801U, include a flow sensor body, an impeller assembly embedded in the flow sensor body, the impeller assembly being fixed on the rotating shaft of the flow sensor body, the upper surface of the second sealing cover being snapped to the lower surface of the sensing component, and the flow sensor body being fixedly connected to the first sealing cover around its perimeter by bolts.

[0004] The impeller assembly has an annular partition at its upper end, a magnet is sleeved on the central shaft of the impeller assembly, an annular groove is provided at the bottom of the second sealing cover, and an annular groove is provided at the bottom of the first sealing cover.

[0005] However, existing technologies typically use a single, integrated structure for installation. During installation, bolts are used for positioning, but the detection unit cannot be directly engaged with the valve body. When assembling, bolts need to be tightened from below or the side, resulting in low installation efficiency. Furthermore, the internal impeller structure is usually fixed at the bottom of the detection unit, making replacement and maintenance very inconvenient. Summary of the Invention

[0006] Therefore, the purpose of this utility model is to provide an impeller flow sensor to solve the technical problem of inconvenient sensor disassembly.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an impeller flow sensor, comprising a valve body and a transmitter instrument, wherein a fixing plate is installed between the valve body and the transmitter instrument, a connecting groove is provided inside the fixing plate, and engaging grooves are provided on both sides of the connecting groove, and limiting plates are symmetrically arranged axially within the engaging grooves, a screw-in cylinder is connected to the bottom end of the transmitter instrument, and an engaging plate is connected to the outer wall of the screw-in cylinder, the screw-in cylinder engaging with the engaging groove through the engaging plate, and after rotating the transmitter instrument, the engaging plate rotates to below the limiting plate to limit the transmitter instrument, and an impeller is connected to the bottom end of the fixing plate.

[0008] By adopting the above technical solution, the transmitter instrument can be easily installed and fixed, and during disassembly, the transmitter instrument can be separated from the impeller, which facilitates maintenance.

[0009] The present invention is further configured such that inlet ports are provided on both sides of the valve body, and a mounting platform is provided on the top of the valve body, with the bottom end of the fixing plate fitting against the mounting platform.

[0010] Preferably, it allows external fluids to easily enter the valve body, and the valve body is sealed by connecting the fixing plate to the mounting platform.

[0011] The present invention is further configured such that a fixing bolt is connected to the bottom end of the mounting platform, the fixing bolt passes through the mounting platform, the fixing plate and the transmitter instrument, and the fixing bolt fixes the mounting platform, the fixing plate and the transmitter instrument together.

[0012] Preferably, this facilitates the installation and connection of the valve body, mounting plate, and transmitter instrument.

[0013] The present invention is further configured such that a protective frame is connected to the outer side of the impeller, the protective frame is fixed below the fixed plate, and a sealing ring is connected to the top of the protective frame.

[0014] Preferably, it can easily protect the impeller and improve the stability of the impeller.

[0015] The present invention is further configured such that the bottom end of the protective frame is rounded, and a slot is provided in the middle of the protective frame, with the impeller located inside the slot.

[0016] Preferably, the resistance to the liquid is reduced.

[0017] In summary, the present invention has the following main advantages:

[0018] This utility model, through the setting of a fixed plate, a locking plate, and an impeller, allows for the installation of the impeller by first inserting the locking plate into the locking groove, then rotating the locking plate to move it below the limiting plate, thereby connecting the transmitter instrument to the fixed plate and realizing the installation of the transmitter instrument.

[0019] This utility model also features fixing bolts that allow the transmitter instrument, fixing plate, and mounting platform to be connected after the fixing plate is fixed on the mounting platform, thereby improving stability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention in an explosion.

[0022] Figure 3 This is a schematic diagram of the bottom structure of the transmitter instrument of this utility model;

[0023] Figure 4 This is a schematic diagram of the impeller structure of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Valve body; 101. Inlet; 102. Mounting platform; 2. Fixing plate; 201. Connecting groove; 202. Limiting plate; 203. Engaging groove; 3. Transmitter instrument; 301. Screw inlet; 302. Engaging plate; 4. Fixing bolts; 5. Impeller; 501. Protective frame. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The embodiments of this utility model will be described below based on its overall structure. Example

[0028] Please see Figures 1 to 4An impeller flow sensor includes a valve body 1 and a transmitter instrument 3. The valve body 1 has inlets 101 on both sides and a mounting platform 102 on its top. A fixing plate 2 is installed between the valve body 1 and the transmitter instrument 3. The bottom end of the fixing plate 2 is fitted to the mounting platform 102. A connecting groove 201 is provided inside the fixing plate 2. Engaging grooves 203 are provided on both sides of the connecting groove 201, and limit plates 202 are symmetrically arranged axially within the engaging grooves 203. A spiral feed cylinder 301 is connected to the bottom end of the transmitter instrument 3. The outer wall of the spiral feed cylinder 301 is connected to the engaging plate 302. 01 The locking plate 302 engages with the locking groove 203. After rotating the transmitter instrument 3, the locking plate 302 rotates to the bottom of the limiting plate 202, limiting the transmitter instrument 3. The bottom end of the mounting platform 102 is connected to the fixing bolt 4. The fixing bolt 4 passes through the mounting platform 102, the fixing plate 2 and the transmitter instrument 3, and fixes the mounting platform 102, the fixing plate 2 and the transmitter instrument 3 together. The bottom end of the fixing plate 2 is connected to the impeller 5. The outer side of the impeller 5 is connected to the protective frame 501. The protective frame 501 is fixed below the fixing plate 2. The top end of the protective frame 501 is connected to the sealing ring.

[0029] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 The bottom of the protective frame 501 is rounded, and a slot is provided in the middle of the protective frame 501. The impeller 5 is located inside the slot, which allows the impeller 5 to easily detect the liquid flowing inside the valve body 1.

[0030] During the installation of this impeller flow sensor, firstly, align the engaging groove 203 on the fixing plate 2 with the engaging plate 302, then rotate it to insert the engaging plate 302 into the inner side of the limiting plate 202, thereby connecting the fixing plate 2 with the transmitter instrument 3. Then, insert the impeller 5 below the fixing plate 2 into the valve body 1, align the fixing plate 2 with the mounting platform 102, and then fix the valve body 1 and the transmitter instrument 3 with the fixing bolts 4 to fix them, thereby improving the installation stability of the transmitter instrument 3.

[0031] Disassembly is easy; simply unscrew the bolts and rotate the transmitter instrument 3 on top to turn the locking plate 302 out from under the limit plate 202.

[0032] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An impeller flow sensor, comprising a valve body (1) and a transmitter instrument (3), characterized in that: A fixing plate (2) is installed between the valve body (1) and the transmitter instrument (3). A connecting groove (201) is provided inside the fixing plate (2). A locking groove (203) is provided on both sides of the connecting groove (201). A limiting plate (202) is symmetrically arranged in the locking groove (203). A screw-in cylinder (301) is connected to the bottom end of the transmitter instrument (3). A locking plate (302) is connected to the outer wall of the screw-in cylinder (301). The screw-in cylinder (301) is locked with the locking groove (203) through the locking plate (302). After the transmitter instrument (3) is rotated, the locking plate (302) rotates to the bottom of the limiting plate (202) to limit the transmitter instrument (3). An impeller (5) is connected to the bottom end of the fixing plate (2).

2. The impeller flow sensor according to claim 1, characterized in that: The valve body (1) has inlet ports (101) on both sides, and a mounting platform (102) is provided at the top of the valve body (1). The bottom end of the fixing plate (2) is attached to the mounting platform (102).

3. The impeller flow sensor according to claim 2, characterized in that: The bottom end of the mounting platform (102) is connected to a fixing bolt (4), which passes through the mounting platform (102), the fixing plate (2) and the transmitter instrument (3), and fixes the mounting platform (102), the fixing plate (2) and the transmitter instrument (3) together.

4. The impeller flow sensor according to claim 1, characterized in that: The outer side of the impeller (5) is connected to a protective frame (501), which is fixed below the fixing plate (2). A sealing ring is connected to the top of the protective frame (501).

5. The impeller flow sensor according to claim 4, characterized in that: The bottom of the protective frame (501) is rounded, and a slot is provided in the middle of the protective frame (501), with the impeller (5) located inside the slot.

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