An IO-Link turbine flow meter

Abstract

The present invention relates to the technical field of turbine flowmeters, and specifically to an IO‑Link turbine flowmeter, and proposes the following technical solution: comprising an extrusion block rotatably mounted inside a circular groove, and an arc-shaped bayonet is provided on the surface of the extrusion block, a through groove is obliquely provided on the surface of the extrusion block, a round rod is slidably fitted inside the through groove, an elastic telescopic rod is fixedly mounted on the lower end of the round rod, a circular plate is fixedly mounted on the lower end of the elastic telescopic rod, a round wheel is slidably fitted on the surface of the extrusion block, the round wheel is rotatably connected to a cross bar, and an arc-shaped plate is fixedly mounted on the end of the cross bar. The present invention uses the coordinated use of various components to enable the sensor to be fixed during installation, and at the same time, when the sensor is vibrated during operation, it will not rotate, thereby ensuring the accuracy of the detection result.

Description

Technical Field

[0001] The present invention relates to the technical field of turbine flowmeters, and in particular to an IO-Link turbine flowmeter. Background Art

[0002] A turbine flowmeter is a velocity-type flow meter, and its structure usually includes components such as turbine blades, bearings, rectifiers, counters, and magnetic coupling transmission devices. The turbine blades are located in the fluid channel and are the core components of the turbine flowmeter. The sensors of existing turbine flowmeters are divided into threaded connection, flange connection, and clamp-on type during installation. They are widely used in the fields of petroleum, chemical industry, etc. Its working principle is: when the fluid passes through the pipeline, it will impact the turbine blades, thereby driving the turbine to rotate, and then the installed sensor will detect the rotation frequency of the turbine, and the detection result will be transmitted to the display unit for display.

[0003] When a sensor with threaded connection is used to detect liquid flow in an environment with large external vibration, such as in a pump room, compressor room, etc., the sensor will rotate in the opposite direction of the installation direction due to long-term vibration, resulting in the sensor being unable to be tightly connected to the flowmeter body, affecting the detection of the turbine rotation frequency, resulting in inaccurate detection results. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides an IO-Link turbine flowmeter, which can effectively solve the problem in the prior art that the sensor is subjected to vibration for a long time and is not tightly connected to the flowmeter body, which affects the detection of the turbine rotation frequency and causes the detection result to be inaccurate.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The present invention provides an IO-Link turbine flowmeter, comprising a flowmeter body, and a sensor mounted on the surface of the flowmeter body, wherein the surface of the sensor is provided with a thread and meshedly connected with an adjusting nut, and further comprising a positioning member for fixing the sensor mounted on the flowmeter body, wherein the positioning member comprises a swivel rotatably connected to the lower end of the adjusting nut, wherein the lower end of the swivel is symmetrically provided with two groups of circular grooves, wherein an insertion rod is inserted into the inside of the circular groove, wherein two groups of clamping blocks are symmetrically installed on the surface of the insertion rod, and wherein the surface of the insertion rod is rotatably connected with a fitting ring;

[0007] And an anti-slip mechanism for preventing the sensor from rotating due to vibration after installation. The anti-slip mechanism includes an extrusion block rotatably installed inside the circular groove, and an arc-shaped bayonet is provided on the surface of the extrusion block. A through groove is obliquely provided on the surface of the extrusion block. A round rod is slidably fitted inside the through groove. An elastic telescopic rod is fixedly installed at the lower end of the round rod. A circular plate is fixedly installed at the lower end of the elastic telescopic rod. A round wheel is slidably fitted on the surface of the extrusion block. The round wheel is rotatably connected to a cross bar, and an arc plate is fixedly installed at the end of the cross bar.

[0008] Furthermore, two groups of insertion holes are symmetrically provided on the surface of the flow meter body, and two groups of arc-shaped grooves are equidistantly provided on the inner walls of the insertion holes.

[0009] Furthermore, the fitting ring is arranged below the rotating ring, the lower end of the fitting ring is an arc-shaped structure, and the lower end of the fitting ring fits with the surface of the flowmeter body.

[0010] Furthermore, the circular groove is connected to an annular groove transversely arranged inside the rotating ring, and two groups of driving grooves are equidistantly opened on the inner wall of the circular groove, and the driving grooves are composed of a group of vertical grooves and a group of spiral grooves.

[0011] Furthermore, two groups of guide rods are symmetrically mounted on the upper surface of the insertion rod, and the guide rods are slidably matched with the driving grooves.

[0012] Furthermore, the circular plate is located above the insertion rod, and the circular plate is slidably matched with a limiting groove formed on the inner wall of the circular groove through a limiting block.

[0013] Furthermore, the cross bar is arranged inside the annular groove connected to the circular groove, the end of the cross bar penetrates the inner wall of the circular groove and extends to the notch opened on the inner wall of the rotating ring, and the cross bar is elastically connected to the annular groove through a connecting spring.

[0014] Furthermore, in an initial state, the arc-shaped plate is located inside a recess provided on the inner wall of the rotating ring, and a check strip is fixedly mounted on the inner arc surface of the arc-shaped plate.

[0015] Furthermore, the size of the check strip is adapted to the thread opened on the surface of the sensor, and the surface of the check strip is coated with a polyurethane coating.

[0016] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0017] The present invention provides an arc-shaped slot, a plug rod and a snap-on block, so that when the sensor is rotatably installed on the flow meter body, the plug rod will first enter the interior of the socket and come into contact with the bottom surface of the socket during the sensor installation process. As the sensor is continuously installed, the guide rod installed on the plug rod will begin to be squeezed with the drive slot, so that the plug rod drives the snap-on block to start rotating, so that the snap-on block enters the interior of the arc-shaped slot, thereby achieving the purpose of snapping, and making the sensor more stable after installation.

[0018] The present invention provides components such as an extrusion block, a round rod and an arc plate, and after the rotation of the insertion rod is completed, the guide rod will enter the interior of the vertical groove from the spiral groove, and the upper end of the insertion rod will begin to contact the lower end of the circular plate and form a support for the circular plate, so that when the sensor continues to move downward, the inclined through groove will be squeezed and matched with the round rod, so that the extrusion block will rotate and squeeze the round wheel, thereby driving the arc plate installed at the end of the cross bar to extend, and at the same time as clamping the sensor, the check strip coated with a polyurethane coating on the surface of the arc plate installed on the arc surface will also enter the interior of the thread opened on the surface of the sensor, thereby achieving the clamping and fixing of the sensor, and also preventing the sensor from rotating in the opposite direction when subjected to vibration and being not tightly connected to the flow meter body, thereby ensuring the accuracy of the sensor detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a cross-sectional schematic diagram of the overall structure of the present invention;

[0022] Figure 3 for Figure 2 A schematic diagram of the structure at center

[0023] Figure 4 It is a structural schematic diagram of the slot and the arc-shaped card slot in the present invention;

[0024] Figure 5 It is a schematic diagram of the overall structure of the positioning member in the present invention;

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the positioning member in the present invention;

[0026] Figure 7 for Figure 6A magnified schematic diagram of the structure at B in the middle;

[0027] Figure 8 It is a schematic diagram of the planar structure of the anti-slip mechanism in the present invention.

[0028] The numbers in the figure represent: 1. flow meter body; 101. socket; 102. arc-shaped slot; 2. sensor; 201. adjusting nut; 3. positioning piece; 301. swivel; 3011. round slot; 3012. driving slot; 302. plug rod; 3021. guide rod; 303. snap-in block; 304. fitting ring; 4. anti-slip mechanism; 401. extrusion block; 402. through slot; 403. round rod; 404. elastic telescopic rod; 405. round plate; 406. round wheel; 407. cross bar; 408. arc-shaped plate; 4081. check strip. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] The present invention will be further described below in conjunction with the embodiments.

[0031] Example: An IO-Link turbine flow meter, such as Figure 1-Figure 8 As shown, it comprises a flow meter body 1, the surface of the flow meter body 1 is symmetrically provided with two groups of plug holes 101, the inner wall of the plug hole 101 is equidistantly provided with two groups of arc-shaped slots 102, and the parts can be fixed by providing the arc-shaped slots 102; and a sensor 2 installed on the surface of the flow meter body 1, the sensor 2 is used to detect the rotation speed of the turbine inside the flow meter body 1;

[0032] It is worth noting that the sensor 2 is internally provided with an IO-Link module, which is a prior art. The IO-Link module is a digital communication protocol used to connect the sensor 2, the actuator and other automation equipment. This communication protocol allows the RFID industrial reader, the sensor 2, the actuator and other industrial automation control systems such as PLC or DCS to communicate; by setting the IO-Link module, accurate and reliable data transmission can be provided, and the possibility of error and interference can be reduced; the IO-Link module supports two-way communication, which can not only read data from the sensor 2 and the actuator, but also send instructions and configuration parameters to the sensor 2 and the actuator, so that the equipment can respond to the needs of the industrial automation system more flexibly and intelligently; the surface of the sensor 2 is provided with a thread and is meshed with an adjustment nut 201. By setting the adjustment nut 201, the installation depth of the sensor 2 can be flexibly adjusted, and the application range of the sensor 2 is increased.

[0033] Combined with Figure 1 -Attached Figure 8 , and also includes a positioning member 3 for fixing the sensor 2 installed on the flow meter body 1, so that the sensor 2 can be fixed for a second time after installation is completed, thereby ensuring the stability of the sensor 2; the positioning member 3 includes a swivel 301 rotatably connected to the lower end of the adjusting nut 201, and by setting the swivel 301, the position can be changed synchronously with the adjusting nut 201; two groups of circular grooves 3011 are symmetrically opened at the lower end of the swivel 301, and the circular grooves 3011 are connected with an annular groove transversely arranged inside the swivel 301, and the installation of parts is facilitated by setting the circular grooves 3011 and the annular grooves connected thereto;

[0034] The inner wall of the circular groove 3011 is provided with two groups of driving grooves 3012 at equal intervals. By providing the driving grooves 3012, the components can be driven to rotate to achieve the purpose of changing the orientation. The driving grooves 3012 are composed of a group of vertical grooves and a group of spiral grooves. The vertical grooves are provided to achieve the effect of guiding and limiting. The spiral grooves are provided to achieve the purpose of changing the rotation of the components and changing the position through their spiral shape.

[0035] Among them, an insertion rod 302 is inserted into the circular groove 3011. By setting the insertion rod 302, when the insertion rod 302 enters the circular groove 3011, the installation position of the sensor 2 is limited and fixed, so that the sensor 2 can be installed in place to avoid the sensor 2 from being installed tilted; at the same time, in conjunction with the socket 101, the insertion rod 302 can be guided and limited; two sets of guide rods 3021 are symmetrically installed on the upper surface of the insertion rod 302, and the guide rods 3021 are slidably matched with the driving groove 3012. By setting the guide rods 3021, and then can cooperate with the driving groove 3012, so that the insertion rod 302 can rotate; it is worth noting that the inner wall of the driving groove 3012 is coated with lubricating oil to reduce friction; the surface of the insertion rod 302 is symmetrically installed with two groups of clamping blocks 303, and by setting the clamping blocks 303, when the insertion rod 302 rotates, the clamping blocks 303 can be driven to rotate and enter the interior of the arc-shaped clamping groove 102, so as to fix the installed sensor 2, so that the sensor 2 can maintain a stable state for detection during use;

[0036] Among them, the surface of the insertion rod 302 is rotatably connected with a fitting ring 304, and the fitting ring 304 is arranged below the swivel 301. The lower end of the fitting ring 304 is an arc structure, and the lower end of the fitting ring 304 is fitted with the surface of the flow meter body 1. By setting the fitting ring 304, when the sensor 2 is installed on the flow meter body 1, it can contact the surface of the flow meter body 1 to fix the swivel 301 and other components to avoid synchronous rotation with the sensor 2 and affecting the installation of the sensor 2. It is worth mentioning that a rubber pad is bonded to the lower end of the fitting ring 304 to increase the friction between the fitting ring 304 and the flow meter body 1, and at the same time, it can also seal the location where the sensor 2 is installed to a certain extent.

[0037] Combined with Figure 1 -Attached Figure 8 , by setting an anti-slip mechanism 4 for preventing the sensor 2 from rotating due to vibration after installation, the sensor 2 can maintain a stable state when subjected to vibration, and will not rotate and separate from the flow meter body 1; the anti-slip mechanism 4 includes an extrusion block 401 rotatably installed inside the circular groove 3011, and an arc-shaped bayonet is provided on the surface of the extrusion block 401. By setting the extrusion block 401, other parts can be squeezed by rotating; and the arc-shaped bayonet is provided to achieve the purpose of fixing the parts; the surface of the extrusion block 401 is obliquely provided with a through groove 402;

[0038] Among them, the inner part of the through groove 402 is slidably matched with the round rod 403, and the round rod 403 is arranged to move up and down inside the through groove 402, and because the extrusion block 401 is rotatably installed inside the round groove 3011, the extrusion block 401 is driven to rotate clockwise; it is worth noting that, in combination with the attached Figure 2 When the extrusion block 401 on the left side rotates, it rotates in the clockwise direction, and the extrusion block 401 on the right side rotates in the counterclockwise direction; an elastic telescopic rod 404 is fixedly installed at the lower end of the round rod 403. By setting the elastic telescopic rod 404, the round rod 403 can be limited so that the round rod 403 can only move vertically up and down, so as to cooperate with the through groove 402 to drive the extrusion block 401 to rotate; a circular plate 405 is fixedly installed at the lower end of the elastic telescopic rod 404. By setting the circular plate 405, the installation of the elastic telescopic rod 404 is facilitated, and the positioning of the elastic telescopic rod 404 is realized at the same time; the circular plate 405 is located above the insertion rod 302, and the circular plate 405 slides in cooperation with the limit groove provided on the inner wall of the circular groove 3011 through the limit block.

[0039] The surface of the extrusion block 401 is slidably matched with a round wheel 406. By setting the round wheel 406, when the extrusion block 401 rotates, the round wheel 406 can be squeezed to move laterally; the round wheel 406 is rotatably connected with a cross bar 407. By setting the cross bar 407, it can move laterally synchronously with the round wheel 406. It is worth noting that the round wheel 406 is rotatably connected with the cross bar 407, so that when the extrusion block 401 rotates to extrude the round wheel 406, the round wheel 406 can rotate, thereby reducing the friction between the extrusion block 401 and the extrusion block 401, thereby extending the service life;

[0040] The cross bar 407 is arranged inside the annular groove connected to the circular groove 3011, and the end of the cross bar 407 penetrates the inner wall of the circular groove 3011 and extends to the notch opened on the inner wall of the rotating ring 301. The cross bar 407 is elastically connected to the annular groove through a connecting spring. By setting the connecting spring, when the cross bar 407 moves laterally, the connecting spring is compressed and a reaction force is generated to restore the original state, so that the round wheel 406 can be more tightly connected to the extrusion block 401; it is worth mentioning that after the extrusion between the extrusion block 401 and the round wheel 406 is completed, the round wheel 406 will enter the arc-shaped bayonet opened on the surface of the extrusion block 401, so as to fix the cross bar 407 that moves laterally;

[0041] Among them, an arc plate 408 is fixedly installed at the end of the cross bar 407. In the initial state, the arc plate 408 is inside the recess opened on the inner wall of the rotating ring 301. By setting the arc plate 408, it can move synchronously with the cross bar 407 and then extend out of the recess to clamp the sensor 2; a check strip 4081 is fixedly installed on the inner arc surface of the arc plate 408. The size of the check strip 4081 is adapted to the thread opened on the surface of the sensor 2, and the surface of the check strip 4081 is coated with a polyurethane coating. By setting the check strip 4081 adapted to the thread, the sensor 2 can be prevented from rotating when subjected to long-term vibration, so that the connection between the sensor 2 and the flow meter body 1 is always stable, ensuring that the detection result of the sensor 2 is more accurate; it is worth noting that the polyurethane coating is a prior art technology used to increase the friction between the check strip 4081 and the thread.

[0042] Specifically, when installing the sensor 2, according to the installation depth of the sensor 2, the adjusting nut 201 meshed with the sensor 2 is adjusted so that the adjusting nut 201 drives the swivel 301 to rise or fall and adjust to the required position, and then the sensor 2 is aligned with the installation position on the flow meter body 1 and installed;

[0043] When the sensor 2 is installed, the plug rod 302 will first enter the inside of the socket 101, and the fitting ring 304 will also begin to contact the surface of the flow meter body 1, and begin to fix the rotating ring 301 and the plug rod 302, and under the action of the socket 101, the plug rod 302 can move vertically downward to avoid synchronous rotation with the rotating sensor 2. As the sensor 2 is rotated and installed, the plug rod 302 will come into contact with the bottom surface of the socket 101, and as the sensor 2 is continuously installed, the rotating ring 301 begins to move downward relative to the plug rod 302, and when moving downward, the plug rod 302 will rotate under the cooperation of the guide rod 3021 and the driving groove 3012, so that the plug rod 302 drives the clamping block 303 to rotate synchronously and enter the arc-shaped clamping groove 102 to achieve a clamping state;

[0044] When the clamping block 303 enters the arc-shaped clamping groove 102 to realize the clamping, the upper end of the plug rod 302 begins to contact the bottom surface of the circular plate 405, and the guide rod 3021 also enters the vertical groove from the spiral groove. Therefore, when the sensor 2 continues to move downward, it will drive the extrusion block 401 with the through groove 402 to move downward synchronously, and then the through groove 402 will begin to squeeze the round rod 403, so that the extrusion block 401 rotates. When the extrusion block 401 rotates, it squeezes the round wheel 406 to drive the cross bar 407 moves laterally, thereby driving the arc plate 408 installed at the end of the cross bar 407 to extend out of the inside of the recess and contact the surface of the sensor 2, thereby achieving the purpose of clamping. While the arc plate 408 is in contact with the sensor 2, the check strip 4081 installed on the inner arc surface of the arc plate 408 enters into the inside of the thread, thereby increasing the friction between the sensor 2 and the arc plate 408, thereby ensuring that the sensor 2 will not rotate and separate from the flow meter body 1 when subjected to vibration, thereby ensuring the accuracy of the detection result.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An IO-Link turbine flowmeter, comprising a flowmeter body (1), and a sensor (2) mounted on the surface of the flowmeter body (1), wherein the surface of the sensor (2) is provided with threads and is meshedly connected with an adjusting nut (201), characterized in that: Also includes: Two groups of insertion holes (101) are symmetrically provided on the surface of the flow meter body (1), and two groups of arc-shaped slots (102) are equidistantly provided on the inner wall of the insertion hole (101); A positioning member (3) for fixing a sensor (2) mounted on a flow meter body (1), the positioning member (3) comprising a rotating ring (301) rotatably connected to the lower end of an adjusting nut (201), the lower end of the rotating ring (301) being symmetrically provided with two groups of circular grooves (3011), the circular grooves (3011) being connected to an annular groove transversely provided inside the rotating ring (301), the inner wall of the circular groove (3011) being equidistantly provided with two groups of driving grooves (3012), the The driving groove (3012) is composed of a group of vertical grooves and a group of spiral grooves. An insertion rod (302) is inserted into the circular groove (3011). Two groups of guide rods (3021) are symmetrically mounted on the upper surface of the insertion rod (302). The guide rods (3021) are slidably matched with the driving groove (3012). Two groups of clamping blocks (303) are symmetrically mounted on the surface of the insertion rod (302). A fitting ring (304) is rotatably connected to the surface of the insertion rod (302). And an anti-slip mechanism (4) for preventing the sensor (2) from rotating due to vibration after installation, the anti-slip mechanism (4) comprising an extrusion block (401) rotatably mounted inside a circular groove (3011), the surface of the extrusion block (401) being provided with an arc-shaped bayonet, the surface of the extrusion block (401) being provided with a through groove (402) obliquely, a round rod (403) slidably fitted inside the through groove (402), an elastic telescopic rod (404) being fixedly mounted at the lower end of the round rod (403), a round plate (405) being fixedly mounted at the lower end of the elastic telescopic rod (404), a round wheel (406) being slidably fitted on the surface of the extrusion block (401), the round wheel (406) being rotatably connected to a cross rod (407), and an arc-shaped plate (408) being fixedly mounted at the end of the cross rod (407).

2. An IO-Link turbine flowmeter according to claim 1, characterized in that: The fitting ring (304) is arranged below the rotating ring (301); the lower end of the fitting ring (304) is an arc-shaped structure, and the lower end of the fitting ring (304) fits with the surface of the flow meter body (1).

3. An IO-Link turbine flowmeter according to claim 1, characterized in that: The circular plate (405) is located above the insertion rod (302), and the circular plate (405) is slidably matched with a limiting groove provided on the inner wall of the circular groove (3011) via a limiting block.

4. An IO-Link turbine flowmeter according to claim 1, characterized in that: The cross bar (407) is arranged inside the annular groove connected to the circular groove (3011), the end of the cross bar (407) penetrates the inner wall of the circular groove (3011) and extends into a notch provided on the inner wall of the rotating ring (301), and the cross bar (407) is elastically connected to the annular groove via a connecting spring.

5. The IO-Link turbine flowmeter according to claim 1, characterized in that: In an initial state, the arc-shaped plate (408) is located inside a recess provided on the inner wall of the rotating ring (301), and a check strip (4081) is fixedly mounted on the inner arc surface of the arc-shaped plate (408).

6. An IO-Link turbine flowmeter according to claim 5, characterized in that: The size of the check strip (4081) is adapted to the thread formed on the surface of the sensor (2), and the surface of the check strip (4081) is coated with a polyurethane coating.

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