A drag plate flow sensor for viscous media

Abstract

The utility model belongs to sensor technical field, and disclose a kind of scraper type flow sensor for viscous medium, including scraper flowmeter, the side of scraper flowmeter is connected with inlet pipe, the other side of scraper flowmeter is connected with outlet pipe, the other end of inlet pipe is connected with adapter pipe, the other end of adapter pipe is connected with communicating pipe, the inside of adapter pipe is adapted with filter mechanism, and the side of filter mechanism is equipped with cleaning assembly;Filter mechanism is composed of filter assembly and protection component.The utility model under the cooperation of communicating pipe etc., the continuous filtering of the viscous medium of entering, avoid foreign matter to enter the problem of abrasion between scraper main body and communicating cavity inner wall that communicating cavity increases;And under the cooperation of filter assembly and protection component, it is also convenient to adjust filtering, and it is cleaned by cleaning assembly, to ensure that filter mechanism continuously effectively filters function.

Description

Technical Field

[0001] This utility model belongs to the field of sensor technology, specifically a scraper-type flow sensor for viscous media. Background Technology

[0002] A scraper flow meter is a flow measurement instrument typically used for measuring viscous or high-viscosity liquids. Its working principle involves installing a scraper-type baffle in the fluid pipeline and determining the flow rate by measuring the volume of fluid scraped across the baffle as it rotates. These flow meters usually use mechanical sensors, thus offering high accuracy and reliability. A scraper flow meter typically includes a metering device and a speed sensor, and can be used in various fields, such as petrochemicals, food and beverage, pharmaceuticals, and water treatment industries.

[0003] In the prior art, in order to prevent impurities in viscous media from entering the equipment and causing damage and reduced service life, a filter structure is usually set in the inlet cavity. However, the purpose of the filter structure is to intercept impurities. Under long-term interception and filtration, impurities will cause changes in the flow rate of the inlet cavity or even blockage, which will seriously affect the measurement accuracy of the flow sensor.

[0004] Therefore, it is necessary to develop a scraper-type flow sensor for viscous media to address the shortcomings of existing technologies. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a scraper-type flow sensor for viscous media, which has the advantages of high accuracy and long service life.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a scraper-type flow sensor for viscous media, comprising a scraper flow meter, one side of which is connected to an inlet pipe and the other side of which is connected to an outlet pipe, the other end of which is connected to an adapter pipe and the other end of which is connected to a connecting pipe, a filter mechanism is adapted inside the adapter pipe, and a cleaning component is installed on the side of the filter mechanism; The filtration mechanism consists of a filter assembly and a protective assembly that are fixedly installed on the outside of the adapter tube and fit together with each other. The filter assembly includes a mounting ring that is fixedly installed on the outside of the adapter tube. A filter plate is movably sleeved inside the mounting ring. The filter plate has several evenly distributed filter grooves inside. One of the filter grooves at the top is connected to the adapter tube. One end of the cleaning assembly corresponds to one of the filter grooves at the bottom.

[0007] Furthermore, a dust discharge groove is provided at the bottom of the mounting ring, the axis of the inner cavity of the dust discharge groove is inclined, the upper end of the dust discharge groove is connected to the interior of the mounting ring, the lower end of the dust discharge groove passes through the mounting ring, and a dust discharge port connected to the outside of the filter groove is provided on the outer surface of the filter plate, and the dust discharge port is connected to the dust discharge groove through the mounting ring.

[0008] Furthermore, the protective assembly includes a protective cover installed at the bottom of the adapter tube, a cleaning groove is provided on the side of the protective cover near the mounting ring, a through hole is provided in the middle of the protective cover, and adapter holes adapted to the outer surface of the adapter tube are provided inside both the mounting ring and the protective cover.

[0009] Furthermore, the cleaning assembly includes a cleaning brush plate disposed inside the cleaning tank, the side of the cleaning brush plate near the mounting ring being covered with bristles, and the other end of the bristles abutting against the inner wall of the filter tank. The outer surface of the cleaning brush plate is rotatably fitted into the inside of the protective cover via a bearing, and the other end of the cleaning brush plate passes through the cleaning groove and extends to the outside of the protective cover and is fixedly connected to a control knob.

[0010] Furthermore, the adapter tube includes a connecting tube fixedly connected between the inlet tube and the connecting tube. The bottom of the connecting tube has an adapter port located between the mounting ring and the protective cover. The upper end of the filter plate is movably connected to the inside of the adapter port. The bottom of the connecting tube is fixedly connected to an installation positioning component located in the middle of the protective cover. One end of the middle part of the installation positioning component is fixedly connected to the middle part of the filter plate, and the other end of the middle part of the installation positioning component extends to the outside of the protective cover through a through hole.

[0011] Furthermore, the mounting and positioning assembly includes a mounting block fixedly connected to the bottom of the connecting pipe, a positioning shaft passing through the middle of the mounting block, both ends of the positioning shaft passing through the mounting block, one end of the positioning shaft being fixedly connected to the middle of the filter plate, and the other end of the positioning shaft extending to the outside of the protective cover through a through hole.

[0012] Furthermore, a gap is left between the mounting block and the positioning shaft. A number of evenly distributed positioning spring teeth are fixedly connected to the inner wall of the mounting block, and a number of evenly distributed limiting spring teeth are fixedly connected to the outer surface of the positioning shaft. The positioning spring teeth and the limiting spring teeth correspond one to one and are distributed alternately. The outer surface of the positioning spring teeth is in close contact with the outer surface of the limiting spring teeth.

[0013] Furthermore, the scraper flow meter includes a housing fixedly connected between the inlet pipe and the outlet pipe. A connecting cavity is formed in the middle of the housing. A rotor passes through the connecting cavity. The axis of the rotor is parallel to and does not coincide with the axis of the connecting cavity. A plurality of uniformly distributed scraper seats are fixedly connected to the outer surface of the rotor. A limiting slider is slidably engaged inside the scraper seat. A scraper body is fixedly connected to the side of the limiting slider away from the rotor and sealed inside the scraper seat. The other end of the scraper body passes through the scraper seat and extends into the interior of the connecting cavity, and is sealed and fitted against the inner wall of the connecting cavity. A positioning spring is provided inside the scraper seat, which abuts against the side of the limiting slider near the rotor. The other end of the positioning spring abuts against the end of the inner wall of the scraper seat near the rotor.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: Due to the design of the filtration mechanism, this invention can be easily connected to the front end of the inlet pipe with the help of the adapter tube, and continuously filter the incoming viscous medium with the help of the connecting pipe, avoiding the problem of foreign objects entering the connecting cavity and increasing wear between the scraper body and the inner wall of the connecting cavity; moreover, with the cooperation of the filtration component and the protective component, it is also easy to adjust the filter and clean it with the cleaning component, thereby ensuring the continuous and effective filtration function of the filtration mechanism.

[0015] Due to the installation ring and protective cover, this utility model can protect several filter tanks that are not connected to the adapter tube, thus preventing dust from falling into the filter tanks and causing secondary contamination of the viscous medium inside the adapter tube. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a sectional view of the front of the present invention; Figure 3 This is a schematic diagram of the installation of the filter mechanism of this utility model; Figure 4 for Figure 3 Disassembly diagram of the middle structure; Figure 5 This is a schematic diagram of the structure of the protective component of this utility model; Figure 6 This is a schematic diagram of the installation and positioning component of this utility model.

[0017] In the diagram: 1. Scraper flow meter; 11. Housing; 12. Connecting cavity; 13. Rotor; 14. Scraper seat; 15. Limiting slider; 16. Scraper body; 17. Positioning spring; 2. Inlet pipe; 3. Outlet pipe; 4. Adapter pipe; 41. Connecting pipe; 42. Adapter port; 43. Mounting and positioning assembly; 431. Mounting block; 432. Positioning shaft; 433. Positioning spring tooth; 434. Limiting spring tooth; 5. Connecting pipe; 6. Filtering mechanism; 61. Filtering assembly; 611. Mounting ring; 612. Dust discharge trough; 613. Filter plate; 614. Filter tank; 615. Dust discharge port; 62. Protective assembly; 621. Protective cover; 622. Cleaning tank; 623. Adapter hole; 624. Through hole; 7. Cleaning assembly; 71. Cleaning brush; 72. Control knob. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1 to 6 As shown, this utility model provides a scraper-type flow sensor for viscous media, including a scraper flow meter 1, an inlet pipe 2 connected to one side of the scraper flow meter 1, an outlet pipe 3 connected to the other side of the scraper flow meter 1, an adapter pipe 4 connected to the other end of the inlet pipe 2, a connecting pipe 5 connected to the other end of the adapter pipe 4, a filter mechanism 6 adapted inside the adapter pipe 4, and a cleaning component 7 installed on the side of the filter mechanism 6. The filtration mechanism 6 consists of a filter assembly 61 and a protective assembly 62 that are fixedly installed on the outside of the adapter tube 4 and fit together. The filter assembly 61 includes a mounting ring 611 that is fixedly installed on the outside of the adapter tube 4. A filter plate 613 is movably sleeved inside the mounting ring 611. The filter plate 613 has a plurality of evenly distributed filter grooves 614 inside. One of the filter grooves 614 located at the top is connected to the adapter tube 4. One end of the cleaning assembly 7 corresponds to one of the filter grooves 614 at the bottom. Due to the configuration of the filter mechanism 6, it can be easily connected to the front end of the inlet pipe 2 with the help of the adapter pipe 4, and with the help of the connecting pipe 5, etc., the incoming viscous medium can be continuously filtered, avoiding the problem of foreign objects entering the connecting cavity 12 and increasing the wear between the scraper body 16 and the inner wall of the connecting cavity 12. Moreover, with the cooperation of the filter assembly 61 and the protective assembly 62, it is also easy to adjust the filter and clean it with the cleaning assembly 7, thereby ensuring the continuous and effective filtration function of the filter mechanism 6.

[0020] The bottom of the mounting ring 611 is provided with a dust discharge groove 612. The axis of the inner cavity of the dust discharge groove 612 is inclined. The upper end of the dust discharge groove 612 is connected to the inside of the mounting ring 611, and the lower end of the dust discharge groove 612 passes through the mounting ring 611. The outer surface of the filter plate 613 is provided with a dust discharge port 615 that is connected to the outside of the filter groove 614. The dust discharge port 615 is connected to the dust discharge groove 612 through the mounting ring 611. The dust discharge groove 612 prevents external dust from entering the mounting ring 611 through the dust discharge groove 612 and affecting the filter plate 613 and filter tank 614. In addition, with the cooperation of the dust discharge port 615, it also facilitates the removal of dust from the surface of the cleaning brush plate 71 through the dust discharge port 615 and the dust discharge groove 612 to the outside of the filter mechanism 6.

[0021] The protective component 62 includes a protective cover 621 installed at the bottom of the adapter tube 4. A cleaning groove 622 is provided on the side of the protective cover 621 near the mounting ring 611. A through hole 624 is provided in the middle of the protective cover 621. Both the mounting ring 611 and the protective cover 621 have adapter holes 623 that are adapted to the outer surface of the adapter tube 4. Due to the installation ring 611 and the protective cover 621, the two work together to protect several filter tanks 614 that are not connected to the adapter tube 4, preventing dust in the environment from falling into the filter tanks 614 and causing secondary contamination of the viscous medium in the adapter tube 4.

[0022] The cleaning component 7 includes a cleaning brush plate 71 disposed inside the cleaning tank 622. The side of the cleaning brush plate 71 near the mounting ring 611 is covered with bristles, and the other end of the bristles abuts against the inner wall of the filter tank 614. The outer surface of the cleaning brush plate 71 is rotatably sleeved inside the protective cover 621 via a bearing. The other end of the cleaning brush plate 71 passes through the cleaning groove 622 and extends to the outside of the protective cover 621 and is fixedly connected to the control knob 72. Due to the setting of the control knob 72, in conjunction with the protective cover 621, the control knob 72 can be used to control the cleaning brush plate 71 to prevent some of the bristles from rotating smoothly, ensuring that the bristles on the surface of the cleaning brush plate 71 can thoroughly clean the filter tank 614, thereby removing the dust intercepted on the surface of the filter tank 614.

[0023] The adapter tube 4 includes a connecting tube 41 fixedly connected between the liquid inlet tube 2 and the connecting tube 5. The bottom of the connecting tube 41 is provided with an adapter port 42 located between the mounting ring 611 and the protective cover 621. The upper end of the filter plate 613 is movably connected to the inside of the adapter port 42. The bottom of the connecting tube 41 is fixedly connected to an installation positioning component 43 located in the middle of the protective cover 621. One end of the middle of the installation positioning component 43 is fixedly connected to the middle of the filter plate 613, and the other end of the middle of the installation positioning component 43 extends to the outside of the protective cover 621 through the through hole 624. The connection pipe 41 facilitates its overall installation with the filter mechanism 6 between the inlet pipe 2 and the connecting pipe 5, thereby filtering viscous media entering the connecting cavity 12. The adapter port 42 allows the filter plate 613 to rotate in conjunction with the filter mechanism 6, so as to exchange the filter tank 614 connected to the connection pipe 41, thus ensuring that the filter mechanism 6 can achieve a long-term and effective filtration effect with the cooperation of the connection pipe 41.

[0024] The mounting and positioning assembly 43 includes a mounting block 431 fixedly connected to the bottom of the connecting pipe 41. A positioning shaft 432 is inserted through the middle of the mounting block 431. Both ends of the positioning shaft 432 pass through the mounting block 431. One end of the positioning shaft 432 is fixedly connected to the middle of the filter plate 613, and the other end of the positioning shaft 432 extends to the outside of the protective cover 621 through the through hole 624.

[0025] There is a gap between the mounting block 431 and the positioning shaft 432. The inner wall of the mounting block 431 is fixedly connected with a number of evenly distributed positioning spring teeth 433. The outer surface of the positioning shaft 432 is fixedly connected with a number of evenly distributed limiting spring teeth 434. The number of positioning spring teeth 433 and limiting spring teeth 434 correspond one to one and are alternately distributed. The outer surface of the positioning spring teeth 433 is in close contact with the outer surface of the limiting spring teeth 434. Due to the arrangement of the positioning spring teeth 433 and the limiting spring teeth 434, their cooperation ensures that the positioning shaft 432 can rotate smoothly so that the operator can control the rotation of the filter plate 613. At the same time, under the elastic pressing force between the positioning spring teeth 433 and the limiting spring teeth 434, the mounting block 431 can restrict the positioning shaft 432, thereby restricting the rotated filter plate 613 and ensuring that the corresponding filter tank 614 continuously and stably transitions to be compatible with the connecting pipe 41.

[0026] The scraper flow meter 1 includes a housing 11 fixedly connected between the inlet pipe 2 and the outlet pipe 3. A connecting cavity 12 is provided in the middle of the housing 11. A rotor 13 is inserted inside the connecting cavity 12. The axis of the rotor 13 is parallel to and does not coincide with the axis of the connecting cavity 12. A plurality of scraper seats 14 are fixedly connected to the outer surface of the rotor 13. A limiting slider 15 is slidably engaged inside the scraper seat 14. A scraper body 16 is fixedly connected to the side of the limiting slider 15 away from the rotor 13 and is sealed and fitted inside the scraper seat 14. The other end of the scraper body 16 passes through the scraper seat 14 and extends into the interior of the connecting cavity 12, and is sealed and fitted to the inner wall of the connecting cavity 12. A positioning spring 17 is provided inside the scraper seat 14 and is abutted and connected to the side of the limiting slider 15 near the rotor 13. The other end of the positioning spring 17 is abutted and connected to the inner wall of the scraper seat 14 near the rotor 13.

[0027] Working principle and usage process of this utility model: Assemble the equipment as shown in the figure, and install it as a whole into the pipeline through the liquid outlet pipe 3 and the connecting pipe 5; When the viscous medium enters the filter mechanism 6 through the connecting pipe 5 and the adapter pipe 4 into a filter tank 614 that is adapted to the adapter pipe 4, after being filtered by the filter tank 614, the filtered viscous medium enters the connecting cavity 12 through the adapter pipe 4 and the liquid inlet pipe 2. Within the connecting cavity 12 and under the constraint of the rotor 13, it pushes the corresponding scraper seat 14 and the scraper body 16 as a whole. With the cooperation of the rotor 13, several scraper seats 14 and the limiting slider 15, etc., rotate counterclockwise around the rotor 13 at the same time. Under the elastic restoring force of the positioning spring 17, the outer end of the scraper body 16 is always sealed to the inner wall of the connecting cavity 12. Thus, the viscous medium sealed between two adjacent scraper seats 14 and the scraper body 16 can be pushed into the liquid outlet pipe 3 and discharged. During this period, the rotor 13 rotates continuously. When the filter tank 614 needs to be cleaned after filtering for a period of time, rotating one end of the positioning shaft 432 extending from the through hole 624 to the outside of the filter mechanism 6 will drive the filter plate 613 to rotate. At the same time, the filter tanks 614 on the filter plate 613 will alternately match the adapter tube 4. When the positioning shaft 432 rotates, it can drive the limiting spring teeth 434 on its surface to rotate relative to the positioning spring teeth 433. Under the action of the elastic restoring force of the two, the two can limit the relative angle between the mounting block 431 and the positioning shaft 432, ensuring that the positioning shaft 432 and the connected filter plate 613 maintain a fixed angle when it stops rotating. At this time, the filter tank 614, which has been filtered for a period of time, is rotated to one end of the cleaning component 7. Then, by turning the control knob 72, the cleaning brush plate 71 can rotate under the restriction of the protective cover 621, and continuously clean the intercepted foreign objects on the surface of the filter tank 614, so that they are removed from the surface of the filter tank 614 and discharged from the dust outlet 615 and the dust outlet 612 under the action of gravity.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paddle flow sensor for viscous media, comprising a paddle flow meter (1), characterized in that: One side of the scraper flow meter (1) is connected to an inlet pipe (2), and the other side of the scraper flow meter (1) is connected to an outlet pipe (3). The other end of the inlet pipe (2) is connected to an adapter pipe (4), and the other end of the adapter pipe (4) is connected to a connecting pipe (5). The adapter pipe (4) is fitted with a filter mechanism (6), and a cleaning component (7) is installed on the side of the filter mechanism (6). The filtration mechanism (6) consists of a filter assembly (61) and a protective assembly (62) that are fixedly installed on the outside of the adapter tube (4) and fit together. The filter assembly (61) includes a mounting ring (611) fixedly installed on the outside of the adapter tube (4). A filter plate (613) is movably sleeved inside the mounting ring (611). The filter plate (613) has several evenly distributed filter grooves (614) inside. One of the filter grooves (614) located at the top is connected to the adapter tube (4). One end of the cleaning assembly (7) corresponds to one of the filter grooves (614) below.

2. A drag flow sensor for viscous media according to claim 1, characterized in that The bottom of the mounting ring (611) is provided with a dust discharge groove (612). The axis of the inner cavity of the dust discharge groove (612) is inclined. The upper end of the dust discharge groove (612) is connected to the interior of the mounting ring (611). The lower end of the dust discharge groove (612) passes through the mounting ring (611). The outer surface of the filter plate (613) is provided with a dust discharge port (615) connected to the outside of the filter groove (614). The dust discharge port (615) is connected to the dust discharge groove (612) through the mounting ring (611).

3. A drag flow sensor for viscous media according to claim 1, characterized in that: The protective component (62) includes a protective cover (621) installed at the bottom of the adapter tube (4). The protective cover (621) has a cleaning groove (622) on the side near the mounting ring (611). The protective cover (621) has a through hole (624) in the middle. The mounting ring (611) and the protective cover (621) both have adapter holes (623) that fit the outer surface of the adapter tube (4).

4. A drag flow sensor for viscous media according to claim 3, characterized in that The cleaning component (7) includes a cleaning brush plate (71) disposed inside the cleaning tank (622), the side of the cleaning brush plate (71) near the mounting ring (611) is covered with bristles, and the other end of the bristles abuts against the inner wall of the filter tank (614). The outer surface of the cleaning brush plate (71) is rotatably sleeved inside the protective cover (621) via a bearing. The other end of the cleaning brush plate (71) passes through the cleaning groove (622) and extends to the outside of the protective cover (621) and is fixedly connected to a control knob (72).

5. A drag flow sensor for viscous media according to claim 3, characterized in that: The adapter tube (4) includes a connecting tube (41) fixedly connected between the liquid inlet tube (2) and the connecting tube (5). The bottom of the connecting tube (41) is provided with an adapter port (42) located between the mounting ring (611) and the protective cover (621). The upper end of the filter plate (613) is movably connected to the inside of the adapter port (42). The bottom of the connecting tube (41) is fixedly connected with an installation positioning component (43) located in the middle of the protective cover (621). One end of the middle part of the installation positioning component (43) is fixedly connected to the middle part of the filter plate (613), and the other end of the middle part of the installation positioning component (43) extends to the outside of the protective cover (621) through a through hole (624).

6. A drag flow sensor for viscous media according to claim 5, characterized in that The mounting and positioning assembly (43) includes a mounting block (431) fixedly connected to the bottom of the connecting pipe (41). A positioning shaft (432) is provided through the middle of the mounting block (431). Both ends of the positioning shaft (432) pass through the mounting block (431). One end of the positioning shaft (432) is fixedly connected to the middle of the filter plate (613). The other end of the positioning shaft (432) extends to the outside of the protective cover (621) through the through hole (624).

7. A drag flow sensor for viscous media according to claim 6, characterized in that A gap is left between the mounting block (431) and the positioning shaft (432). A plurality of evenly distributed positioning spring teeth (433) are fixedly connected to the inner wall of the mounting block (431). A plurality of evenly distributed limiting spring teeth (434) are fixedly connected to the outer surface of the positioning shaft (432). The plurality of positioning spring teeth (433) and limiting spring teeth (434) correspond one to one and are distributed alternately. The outer surface of the positioning spring teeth (433) is in close contact with the outer surface of the limiting spring teeth (434).

8. A drag flow sensor for viscous media according to claim 1, characterized in that: The scraper flowmeter (1) includes a housing (11) fixedly connected between the inlet pipe (2) and the outlet pipe (3). A connecting cavity (12) is provided in the middle of the housing (11). A rotor (13) is inserted inside the connecting cavity (12). The axis of the rotor (13) is parallel to and does not coincide with the axis of the connecting cavity (12). A plurality of uniformly distributed scraper seats (14) are fixedly connected to the outer surface of the rotor (13). A limit slider (15) is slidably engaged inside the scraper seat (14). The limit slider (15) is far from... A scraper body (16) is fixedly connected to one side of the rotor (13) and sealed inside the scraper seat (14). The other end of the scraper body (16) passes through the scraper seat (14) and extends into the interior of the connecting cavity (12), and is sealed and fitted to the inner wall of the connecting cavity (12). A positioning spring (17) is provided inside the scraper seat (14) and is abutted and connected to the limiting slider (15) on the side near the rotor (13). The other end of the positioning spring (17) is abutted and connected to the inner wall of the scraper seat (14) on the side near the rotor (13).

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