Vortex shedding flowmeter with simplified structure

Abstract

The utility model belongs to the technical field of vortex shedding flowmeters, and particularly relates to a vortex shedding flowmeter with a simplified structure, which comprises a base, a connecting pipe is fixedly connected to the top of the base, a telescopic groove is formed in the inner wall of the connecting pipe, grooves are formed in the outer wall of the connecting pipe, spring grooves are formed in the inner walls of the grooves, and bumps are arranged in the grooves. The outer wall of the connecting pipe is in threaded connection with a threaded ring, the bottom of the threaded ring is provided with a positioning ring, the outer wall of the connecting pipe is sleeved with a moving ring, the top of the moving ring is provided with a positioning groove, and the top of the moving ring is provided with a clamping groove. And an extrusion groove is formed in the bottom of the moving ring, sliding blocks are fixedly connected to the inner wall of the moving ring, sliding grooves are formed in the outer wall of the connecting pipe, and the multiple sliding blocks are located in the multiple sliding grooves correspondingly. Under the action of the threaded ring and the movable ring, the meter head main body is convenient and rapid to install, so that the maintenance is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of vortex flow meter technology, specifically a simplified vortex flow meter. Background Technology

[0002] A vortex flow meter is a flow measurement instrument based on the Karman vortex street principle. It has the advantages of simple structure, high reliability, and wide applicability, and is widely used in industrial fields for monitoring the flow of gas, steam, and liquids.

[0003] Existing vortex flow meters typically use a method of fixing the meter body to the base by connecting flanges and bolts. Although this structure is stable, it is inconvenient to install and maintain. The flange connection requires precise alignment, otherwise it may lead to poor sealing or large measurement errors. The bolt tightening process is cumbersome, especially in narrow or high-altitude working environments, which increases the difficulty of installation and maintenance. Summary of the Invention

[0004] The purpose of this invention is to provide a simplified vortex flow meter that is easy and quick to assemble and disassemble, thus facilitating maintenance.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a simplified vortex flow meter is provided, including a base, a connecting pipe fixedly connected to the top of the base, multiple telescopic grooves being formed on the inner wall of the connecting pipe, multiple grooves being formed on the outer wall of the connecting pipe, and spring grooves being formed on the inner wall of each of the multiple grooves, with two spring grooves in each groove, a protrusion being provided inside the groove, a pressing plate being fixedly connected to the side of the protrusion facing the telescopic groove, and two springs being fixedly connected to the side of the protrusion facing the telescopic groove, a threaded ring being threadedly connected to the outer wall of the connecting pipe, a positioning ring being provided at the bottom of the threaded ring, a movable ring being sleeved on the outer wall of the connecting pipe, a positioning groove being formed at the top of the movable ring, a pressing groove being formed at the bottom of the movable ring, and multiple pressing grooves being formed, a slider being fixedly connected to the inner wall of the movable ring, and multiple sliders being formed, a sliding groove being formed on the outer wall of the connecting pipe, and multiple sliding grooves being formed, with the multiple sliders respectively located inside the multiple sliding grooves.

[0006] Optionally, the telescopic groove is connected to the groove, one end of the extrusion plate is triangular, the end of the spring near the spring groove is fixedly connected to the inner wall of the spring groove, the protrusion is semi-circular, the inner wall of the extrusion groove is inclined, and the outer wall of the protrusion is tightly fitted with the inclined surface.

[0007] Optionally, a baffle is fixedly connected to the outer wall of the connecting pipe, the baffle is located at the upper end of the outer wall of the connecting pipe, and the threaded ring and the positioning ring are located between the baffle and the base.

[0008] Optionally, the inner wall of the connecting pipe is provided with a limiting groove, and the number of limiting grooves is multiple. A meter body is installed on the top of the connecting pipe, and a positioning rod is fixedly connected to the bottom of the meter body. A locking groove is provided on the outer wall of the positioning rod, and the number of locking grooves is multiple. The contact surface between the multiple locking grooves and the extrusion plate is inclined. A limiting strip is fixedly connected to the outer wall of the positioning rod, and the number of limiting strips is multiple. The multiple limiting strips are respectively located inside the multiple limiting grooves. A probe is installed at the bottom of the positioning rod, and the probe is located inside the base.

[0009] Optionally, a sealing ring is installed on the top of the connecting pipe, and the sealing ring is located at the contact point between the meter body and the connecting pipe.

[0010] Optionally, the outer wall of the threaded ring is fixedly connected with a protruding plate, and there are multiple protruding plates. Both ends of the base are fixedly connected with flanges.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model includes a protrusion, a pressing plate, a spring, a threaded ring, a positioning ring, a moving ring, and a slider. When installing the meter head body, the positioning rod connected to the bottom of the meter head body is inserted from the top of the base. Multiple limiting strips on the outer wall of the positioning rod are respectively located in limiting grooves opened on the inner wall of the connecting pipe. Multiple locking grooves on the outer wall of the positioning rod correspond to multiple pressing plates. The inclined ends of the multiple pressing plates are separated from the locking grooves, and the protrusion connected to one end of the pressing plate is located outside the connecting pipe, while the inclined end of the pressing plate is located inside the telescopic groove. Then, the threaded ring is rotated to move downwards. Simultaneously, because the positioning ring at the bottom of the threaded ring is located in the positioning groove opened at the top of the moving ring, and under the limiting action of multiple sliders… This causes the threaded ring to move downwards, pushing the moving ring downwards synchronously. Multiple extrusion grooves on the bottom of the moving ring then extrude corresponding protrusions. Since the surfaces of the extrusion grooves and protrusions are also inclined, the protrusions push the extrusion plate into the locking groove. As the moving ring moves downwards, the inclined end of the extrusion plate tightly fits against the inclined surface inside the locking groove. At this point, the spring is compressed. Under the combined action of multiple extrusion plates, the bottom of the meter body is pressed tightly against the top of the connecting pipe, causing the threaded ring to rotate in the opposite direction. Similarly, when the extrusion groove at the bottom of the moving ring separates from the protrusion, the spring rebounds, causing the protrusion and extrusion plate to reset, thus allowing the meter body to be pulled away from the connecting pipe. The meter body is easy and quick to install and convenient to maintain. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the positioning rod and probe of this utility model;

[0016] Figure 3 This is a top exploded view of the connecting pipe, threaded ring, and movable ring of this utility model;

[0017] Figure 4 This is a bottom-view exploded view of the connecting pipe, threaded ring, and movable ring of this utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 6 This utility model Figure 6 Enlarged structural diagram at point A;

[0020] Figure 7 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 8 This utility model Figure 7 A magnified structural diagram at point B in the middle.

[0022] In the diagram: 1. Base; 2. Connecting pipe; 3. Telescopic groove; 4. Groove; 5. Spring groove; 6. Protrusion; 7. Extrusion plate; 8. Spring; 9. Threaded ring; 10. Positioning ring; 11. Moving ring; 12. Positioning groove; 13. Extrusion groove; 14. Slider; 15. Slide groove; 16. Baffle; 17. Limiting groove; 18. Head body; 19. Positioning rod; 20. Limiting strip; 21. Probe; 22. Sealing ring; 23. Protrusion plate; 24. Flange. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Reference Figure 1-8The present invention provides a simplified vortex flow meter according to an embodiment of the present invention. A simplified vortex flow meter includes a base 1, a connecting pipe 2 fixedly connected to the top of the base 1, multiple telescopic grooves 3 forming the inner wall of the connecting pipe 2, and multiple grooves 4 forming the outer wall of the connecting pipe 2. The telescopic grooves 3 communicate with the grooves 4. Two spring grooves 5 are formed on the inner wall of each groove 4. A protrusion 6, semi-circular in shape, is provided inside the groove 4. The outer wall of the protrusion 6 is tightly fitted with an inclined surface. A pressing plate 7 is fixedly connected to the side of the protrusion 6 facing the telescopic groove 3. One end of the pressing plate 7... The connecting pipe 2 is triangular in shape. Two springs 8 are fixedly connected to the side of the protrusion 6 facing the telescopic groove 3. One end of each spring 8 near the spring groove 5 is fixedly connected to the inner wall of the spring groove 5. A threaded ring 9 is threaded onto the outer wall of the connecting pipe 2. A positioning ring 10 is located at the bottom of the threaded ring 9. A moving ring 11 is fitted onto the outer wall of the connecting pipe 2. A positioning groove 12 is formed at the top of the moving ring 11, and a pressing groove 13 is formed at the bottom of the moving ring 11. Multiple pressing grooves 13 are present, and the inner wall of each pressing groove 13 is inclined. A slider 14 is fixedly connected to the inner wall of the moving ring 11. There are multiple 4-piece sets. The outer wall of the connecting pipe 2 has multiple grooves 15. Multiple sliders 14 are located inside the multiple grooves 15. Rotating the threaded ring 9 causes it to move downwards. Simultaneously, because the positioning ring 10 at the bottom of the threaded ring 9 is located in the positioning groove 12 at the top of the moving ring 11, and under the limiting action of the multiple sliders 14, the threaded ring 9 pushes the moving ring 11 downwards synchronously during its downward movement. This causes the multiple extrusion grooves 13 at the bottom of the moving ring 11 to extrude the corresponding protrusions 6. Since the surface of the extrusion groove 13 contacting the protrusion 6 is also an inclined surface... The protrusion 6 pushes the pressing plate 7 into the locking groove. As the moving ring 11 moves downward, the inclined end of the pressing plate 7 fits tightly against the inclined surface inside the locking groove. At this time, the spring 8 is compressed. Under the combined action of multiple pressing plates 7, the bottom of the meter body 18 is pressed tightly against the top of the connecting pipe 2, and the threaded ring 9 rotates in the opposite direction. Similarly, when the pressing groove 13 at the bottom of the moving ring 11 separates from the protrusion 6, the spring 8 rebounds, causing the protrusion 6 and the pressing plate 7 to reset, thereby allowing the meter body 18 to be pulled away from the connecting pipe 2. The meter body 18 is easy and quick to install, thus facilitating maintenance.

[0028] In another embodiment of this utility model, please refer to Figure 1 A baffle 16 is fixedly connected to the outer wall of the connecting pipe 2. The baffle 16 is located at the upper end of the outer wall of the connecting pipe 2. The threaded ring 9 and the positioning ring 10 are located between the baffle 16 and the base 1, which can prevent the threaded ring 9 from detaching from the top of the connecting pipe 2 when it moves to the highest position.

[0029] In another embodiment of this utility model, please refer to Figures 2 to 4The inner wall of the connecting pipe 2 has multiple limiting grooves 17. A meter body 18 is mounted on the top of the connecting pipe 2. The meter body 18 includes a display meter and a vertical connecting rod. A positioning rod 19 is fixedly connected to the bottom of the meter body 18. Multiple locking grooves are formed on the outer wall of the positioning rod 19. The locking grooves and the cross-section of the extrusion plate 7 are both triangular. Multiple limiting strips 20 are fixedly connected to the outer wall of the positioning rod 19. These multiple limiting strips 20 are located inside the multiple limiting grooves 17. A probe 21 is installed at the bottom of the 9. The probe 21 is located inside the base 1. When installing the meter body 18, the positioning rod 19 connected to the bottom of the meter body 18 is inserted from the top of the base 1. Multiple limiting strips 20 provided on the outer wall of the positioning rod 19 are respectively located in the limiting grooves 17 opened on the inner wall of the connecting pipe 2. Multiple locking grooves opened on the outer wall of the positioning rod 19 correspond to multiple extrusion plates 7. The inclined ends of the multiple extrusion plates 7 are separated from the locking grooves. The protrusion 6 connected to one end of the extrusion plate 7 is located outside the connecting pipe 2. At the same time, the inclined end of the extrusion plate 7 is located inside the telescopic groove 3.

[0030] In another embodiment of this utility model, please refer to Figures 3 to 6 A sealing ring 22 is installed on the top of the connecting pipe 2, and the sealing ring 22 is located at the contact point between the meter body 18 and the connecting pipe 2.

[0031] In another embodiment of this utility model, please refer to Figure 1 The outer wall of the threaded ring 9 is fixedly connected with a protruding plate 23, and there are multiple protruding plates 23 to facilitate the rotation of the threaded ring 9. Both ends of the base 1 are fixedly connected with flanges 24, which can be connected to the pipes at both ends.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A simplified vortex flow meter, comprising a base (1), characterized in that: A connecting pipe (2) is fixedly connected to the top of the base (1). The inner wall of the connecting pipe (2) is provided with a telescopic groove (3), and there are multiple telescopic grooves (3). The outer wall of the connecting pipe (2) is provided with a groove (4), and there are multiple grooves (4). The inner wall of each of the multiple grooves (4) is provided with a spring groove (5), and there are two spring grooves (5). A protrusion (6) is provided inside the groove (4). A pressing plate (7) is fixedly connected to the side of the protrusion (6) facing the telescopic groove (3). A spring (8) is fixedly connected to the side of the protrusion (6) facing the telescopic groove (3), and there are two springs (8). The connecting pipe (2) The outer wall of the connecting pipe (2) is threaded with a threaded ring (9), and the bottom of the threaded ring (9) is provided with a positioning ring (10). The outer wall of the connecting pipe (2) is fitted with a moving ring (11), the top of the moving ring (11) is provided with a positioning groove (12), the bottom of the moving ring (11) is provided with a pressing groove (13), and there are multiple pressing grooves (13). The inner wall of the moving ring (11) is fixedly connected with a slider (14), and there are multiple sliders (14). The outer wall of the connecting pipe (2) is provided with a sliding groove (15), and there are multiple sliding grooves (15). The multiple sliders (14) are located inside the multiple sliding grooves (15).

2. The simplified vortex flow meter as described in claim 1, characterized in that: The telescopic groove (3) is connected to the groove (4), one end of the extrusion plate (7) is triangular, one end of the spring (8) near the spring groove (5) is fixedly connected to the inner wall of the spring groove (5), the protrusion (6) is semi-circular, the inner wall of the extrusion groove (13) is inclined, and the outer wall of the protrusion (6) is closely fitted with the inclined surface.

3. A simplified vortex flow meter as described in claim 1, characterized in that: A baffle (16) is fixedly connected to the outer wall of the connecting pipe (2). The baffle (16) is located at the upper end of the outer wall of the connecting pipe (2). The threaded ring (9) and the positioning ring (10) are located between the baffle (16) and the base (1).

4. A simplified vortex flow meter as described in claim 1, characterized in that: The inner wall of the connecting pipe (2) is provided with a limiting groove (17), and there are multiple limiting grooves (17). The top of the connecting pipe (2) is equipped with a meter body (18), and the bottom of the meter body (18) is fixedly connected with a positioning rod (19). The outer wall of the positioning rod (19) is provided with a locking groove, and there are multiple locking grooves. The contact surface between the multiple locking grooves and the extrusion plate (7) is an inclined surface. The outer wall of the positioning rod (19) is fixedly connected with a limiting strip (20), and there are multiple limiting strips (20). The multiple limiting strips (20) are respectively located inside the multiple limiting grooves (17). The bottom of the positioning rod (19) is equipped with a probe (21), and the probe (21) is located inside the base (1).

5. A simplified vortex flow meter as described in claim 1, characterized in that: A sealing ring (22) is installed on the top of the connecting pipe (2), and the sealing ring (22) is located at the joint between the meter body (18) and the connecting pipe (2).

6. A simplified vortex flow meter as described in claim 1, characterized in that: The outer wall of the threaded ring (9) is fixedly connected with a protruding plate (23), and there are multiple protruding plates (23). Both ends of the base (1) are fixedly connected with flanges (24).

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