Anti-blocking blowback structure of flowmeter

Abstract

The utility model discloses an anti-blocking blowback structure of a flowmeter, and relates to the technical field of flowmeters. The flow meter comprises a pipeline, a flow meter body is arranged at the top end of the pipeline and comprises an installation base, the installation base is fixed to the pipeline, a first flange plate is fixedly installed at the top end of the installation base, and a plurality of connecting columns which are annularly and evenly distributed are fixedly installed on the edge of the top end of the first flange plate. Wherein first circular grooves are formed in the tops of the connecting columns in a penetrating mode, a second flange plate is arranged at the top end of the first flange plate, column grooves used in cooperation with the connecting columns are formed in the edge of the top end of the second flange plate in a penetrating mode, and first L-shaped plates corresponding to the first circular grooves are fixedly installed at the edge of the top end of the second flange plate. According to the utility model, the first flange plate and the second flange plate can be fixed together without other tools, so that the mounting and dismounting efficiency is improved, and the flute-shaped pipe in the flow meter can be replaced more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, and particularly relates to an anti-blocking and back-blowing structure for a flow meter. Background Technique

[0002] The publication number "CN216206664U" discloses a back-blowing type anti-blocking averaging pitot tube flow meter for measuring the flow rate of a medium in a pipeline, including a flute-shaped tube. One end of the flute-shaped tube is inserted into the pipeline and is provided with a plurality of positive pressure side measurement holes and a plurality of negative pressure side measurement holes. The other end is provided with a positive pressure side pressure tapping port and a negative pressure side pressure tapping port for connecting with a differential pressure transmitter. A total pressure tube and a static pressure tube are arranged in the flute-shaped tube. The two ends of the total pressure tube are respectively communicated with the positive pressure side pressure tapping port and the positive pressure side measurement holes, and the two ends of the static pressure tube are respectively communicated with the negative pressure side pressure tapping port and the negative pressure side measurement holes. Two back-blowing interfaces are further arranged at the other end of the flute-shaped tube, and the two back-blowing interfaces are respectively communicated with the total pressure tube and the static pressure tube. The back-blowing interfaces are used for connecting with a back-blowing device. When measuring the flow rate of the medium, if the flute-shaped tube is blocked, only by intermittently back-blowing the back-blowing interfaces through the back-blowing device, the flute-shaped tube can be dredged to solve the blocking problem, and it can be cleaned online with little impact on production;

[0003] However, for the above technology, when the flute-shaped tube needs to be replaced, the two flange plates need to be disassembled. Since the flange plates are connected by bolts, other tools are needed to disassemble the two flange plates when disassembling, so as to replace the flute-shaped tube. This reduces the replacement efficiency of the flute-shaped tube. At the same time, when fixing the two flange plates together, it is also necessary to hold one side by hand while installing the two flange plates, which reduces the installation efficiency of the flange plates. Content of the Utility Model

[0004] In order to solve the problems that other tools are needed to disassemble the two flange plates and that it is necessary to hold one side by hand while installing the two flange plates; the purpose of the utility model is to provide an anti-blocking and back-blowing structure for a flow meter.

[0005] To solve the above technical problems, the present utility model adopts the following technical solutions: A flowmeter anti-blocking and back-blowing structure, including a pipeline, a flowmeter is provided at the top of the pipeline, the flowmeter includes a mounting seat, the mounting seat is fixed on the pipeline, a first flange is fixedly installed at the top of the mounting seat, and a plurality of annularly and evenly distributed connecting columns are fixedly installed at the top edge of the first flange. Among them, a first circular groove is formed through the top of several of the connecting columns. A second flange is provided at the top of the first flange. A column groove for cooperating with the connecting column is formed through the top edge of the second flange. A first L-shaped plate corresponding to the first circular groove is fixedly installed at the top edge of the second flange. A threaded rod is threadedly connected to the middle of the first L-shaped plate. One end of the threaded rod is fixedly installed with a fixing plate. A connecting rod is fixedly installed on the side of the fixing plate away from the threaded rod. The connecting rod is used in cooperation with the first circular groove. A rotating wheel is fixedly installed on the side of the threaded rod away from the fixing plate.

[0006] Preferably, second circular grooves are formed through the tops of two of the connecting columns. Second L-shaped plates corresponding to the second circular grooves are fixedly installed at the edge of the upper surface of the second flange. The two second L-shaped plates are opposite ends and are on the same horizontal line. Springs are fixedly installed on the opposite outer sides of the two second L-shaped plates. A moving plate is fixedly installed on the side of the spring away from the second L-shaped plate. Connecting plates are fixedly installed on both sides of the moving plate. A fixing column is fixedly installed on the side of the moving plate away from the spring. The fixing column is used in cooperation with the second circular groove.

[0007] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0008] 1. In this application, the first flange and the second flange can be fixed together without the need to rely on other tools, improving the installation and disassembly efficiency and making it more convenient to replace the flume tube in the flowmeter;

[0009] 2. In this application, it is not necessary to initially install the first flange and the second flange while holding them by hand, improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0011] Figure 1 It is a schematic structural diagram of the present utility model.

[0012] Figure 2 This is a schematic diagram of the split structure of the first flange and the second flange in the present utility model.

[0013] Figure 3 For the present utility model Figure 2 An enlarged view of part A.

[0014] Figure 4 For the present utility model Figure 2 An enlarged view of part B.

[0015] Figure 5 This is a schematic diagram of the top structure of the second flange in the present utility model.

[0016] Figure 6 This is a schematic diagram of the connection structure between the limiting block and the limiting groove in the present utility model.

[0017] Figure 7 This is a schematic diagram of the connection structure between the clamping block and the clamping groove in the present utility model.

[0018] In the figure: 1, pipeline; 11, flowmeter; 2, mounting seat; 20, first flange; 21, connecting column; 22, first circular groove; 23, second flange; 24, column groove; 25, first L-shaped plate; 26, threaded rod; 27, fixing plate; 28, connecting rod; 29, runner; 3, second circular groove; 31, second L-shaped plate; 32, spring; 33, moving plate; 34, connecting plate; 35, fixed column; 4, limiting block; 41, limiting groove; 5, clamping block; 51, clamping groove; 6, first limiting plate; 61, first empty groove; 7, second limiting plate; 71, second empty groove. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment: As Figures 1-7As shown in the figure, the utility model provides an anti-blocking and back-blowing structure for a flowmeter, including a pipeline 1. A flowmeter 11 is provided at the top of the pipeline 1. The flowmeter 11 includes a mounting seat 2, and the mounting seat 2 is fixed on the pipeline 1. A first flange 20 is fixedly installed at the top of the mounting seat 2. A plurality of annularly and evenly distributed connecting columns 21 are fixedly installed at the top edge of the first flange 20. A first circular groove 22 is formed through the top of several of the connecting columns 21. A second flange 23 is provided at the top of the first flange 20. A column groove 24 matching with the connecting column 21 is formed through the top edge of the second flange 23. A first L-shaped plate 25 corresponding to the first circular groove 22 is fixedly installed at the top edge of the second flange 23. A threaded rod 26 is threadedly connected to the middle of the first L-shaped plate 25. One end of the threaded rod 26 is fixedly installed with a fixing plate 27. A connecting rod 28 is fixedly installed on the side of the fixing plate 27 away from the threaded rod 26. The connecting rod 28 is used in cooperation with the first circular groove 22. A runner 29 is fixedly installed on the side of the threaded rod 26 away from the fixing plate 27.

[0021] A second circular groove 3 is formed through the top of two of the connecting columns 21. A second L-shaped plate 31 corresponding to the second circular groove 3 is fixedly installed at the edge of the upper surface of the second flange 23. The two second L-shaped plates 31 are opposite ends and are on the same horizontal line. Springs 32 are fixedly installed on the opposite outer sides of the two second L-shaped plates 31. A moving plate 33 is fixedly installed on the side of the spring 32 away from the second L-shaped plate 31. Connecting plates 34 are fixedly installed on both sides of the moving plate 33. A fixing column 35 is fixedly installed on the side of the moving plate 33 away from the spring 32. The fixing column 35 is used in cooperation with the second circular groove 3. By providing two connecting plates 34, it is possible to arbitrarily select which connecting plate 34 to pull to drive the moving plate 33 and the fixing column 35 to move, improving the installation efficiency between the first flange 20 and the second flange 23.

[0022] Two symmetrically distributed limiting blocks 4 are fixedly installed at the bottom end of the fixing plate 27. The limiting blocks 4 are located at the edge of the fixing plate 27. The length of the limiting blocks 4 is shorter than the length of the fixing plate 27. A limiting groove 41 matching with the limiting block 4 is formed on the upper surface of the first L-shaped plate 25. By providing the limiting blocks 4 and the limiting groove 41, the fixing plate 27 is limited to prevent the fixing plate 27 from rotating along with the rotation of the threaded rod 26, affecting the movement of the fixing plate 27 driving the connecting rod 28 towards the direction of the first circular groove 22.

[0023] Two symmetrically distributed clamping blocks 5 are fixedly installed at the bottom end of the moving plate 33. A clamping groove 51 matching with the clamping block 5 is formed on the upper surface of the second L-shaped plate 31. By providing the clamping blocks 5 and the clamping grooves 51, the moving plate 33 is more stable when moving.

[0024] A plurality of first limiting plates 6 evenly distributed in an annular shape are fixedly installed on the outside of each connecting rod 28, and a plurality of connecting columns 21 are located at the position of the first circular groove 22 and penetrated by a first empty groove 61 used in conjunction with the first limiting plate 6. By setting the first limiting plate 6 and the first empty groove 61, the connecting rod 28 stuck in the first circular groove 22 is more stable.

[0025] A plurality of second limiting plates 7 evenly distributed in an annular shape are fixedly installed on the outside of each fixing column 35, wherein two connecting columns 21 are located at the position of the second circular groove 3 and penetrated by a second empty groove 71 used in conjunction with the second limiting plate 7. By setting the second limiting plate 7 and the second empty groove 71, the fixing column 35 stuck in the second circular groove 3 is made more stable.

[0026] A plurality of first anti-slip strips are fixedly installed on the outside of the rotating wheel 29 and are evenly distributed. A plurality of second anti-slip strips are fixedly installed on one side of the connecting plate 34 close to the fixed column 35 and are evenly distributed. By setting the first anti-slip strips, the friction between the hand and the rotating wheel 29 is increased, making it easier to rotate the rotating wheel 29. By setting the second anti-slip strips, the friction between the hand and the connecting plate 34 is increased, making it easier to press the connecting plate 34.

[0027] The number of the column slots 24 and the connecting columns 21 is an even number, so that the two second L-shaped plates 31 are always on the same horizontal line, which makes it easier to move the moving plate 33 toward the middle at the same time and install the first flange 20 and the second flange 23 together.

[0028] Working principle: In actual use, when the first flange 20 and the second flange 23 need to be installed together, each column groove 24 is matched with the connecting column 21, and the connecting column 21 with the first circular groove 22 is matched with the connecting rod 28, and the connecting column 21 with the second circular groove 3 is matched with the fixing column 35, then the connecting column 21 is passed through the column groove 24, and the connecting plates 34 on both sides are pressed at the same time, and the spring 32 contracts, so that the connecting plate 34 drives the fixing column 35 away from the corresponding second circular groove 3, when the first flange 20 and the second flange 23 are fitted together, the connecting plate 34 is released, and the spring 32 rebounds, driving the moving plate 33 and the fixing column 35 to the second circular groove 3. The first flange 20 and the second flange 23 are connected together. Then, the rotating wheel 29 is rotated in sequence to drive the threaded rod 26 to rotate. The threaded rod 26 is connected to the first L-shaped plate 25 by threads. The limiting block 4 and the limiting groove 41 are used in cooperation to limit the fixing plate 27, so that the threaded rod 26 drives the fixing plate 27 and the connecting rod 28 to move in the direction of the first circular groove 22, and the connecting rod 28 is stuck in the corresponding first circular groove 22, so that the first flange 20 and the second flange 23 are fixed together. No other tools or hand support are required, and quick installation and disassembly can be achieved.

[0029] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. A flowmeter anti-blocking and back-blowing structure, comprising a pipeline (1), characterized in that: A flowmeter (11) is provided at the top of the pipeline (1). The flowmeter (11) includes a mounting base (2) which is fixed on the pipeline (1). A first flange (20) is fixedly installed at the top of the mounting base (2). A number of annularly and evenly distributed connecting columns (21) are fixedly installed at the top edge of the first flange (20). A first circular groove (22) is formed through the top of a number of the connecting columns (21). A second flange (23) is provided at the top of the first flange (20). A column groove (24) for cooperating with the connecting column (21) is formed through the top edge of the second flange (23). A first L-shaped plate (25) corresponding to the first circular groove (22) is fixedly installed at the top edge of the second flange (23). A threaded rod (26) is threadedly connected to the middle of the first L-shaped plate (25). One end of the threaded rod (26) is fixedly installed with a fixing plate (27). A connecting rod (28) is fixedly installed on the side of the fixing plate (27) away from the threaded rod (26). The connecting rod (28) cooperates with the first circular groove (22). A runner (29) is fixedly installed on the side of the threaded rod (26) away from the fixing plate (27).

2. The anti-blocking and back-blowing structure of a flowmeter according to claim 1, wherein, A second circular groove (3) is formed through the top of two of the connecting columns (21). A second L-shaped plate (31) corresponding to the second circular groove (3) is fixedly installed at the edge of the upper surface of the second flange (23). The two second L-shaped plates (31) are opposite ends and are on a horizontal line. Springs (32) are fixedly installed on the opposite outer sides of the two second L-shaped plates (31). A moving plate (33) is fixedly installed on the side of the spring (32) away from the second L-shaped plate (31). Connecting plates (34) are fixedly installed on both sides of the moving plate (33). A fixing column (35) is fixedly installed on the side of the moving plate (33) away from the spring (32). The fixing column (35) cooperates with the second circular groove (3).

3. The anti-blocking and back-blowing structure of a flowmeter according to claim 1, characterized in that, Two symmetrically distributed limiting blocks (4) are fixedly installed at the bottom end of the fixing plate (27). The limiting blocks (4) are located at the edge of the fixing plate (27). The length of the limiting block (4) is shorter than the length of the fixing plate (27). A limiting groove (41) for cooperating with the limiting block (4) is formed on the upper surface of the first L-shaped plate (25).

4. The anti-blocking and back-blowing structure of a flowmeter according to claim 2, characterized in that, Two symmetrically distributed clamping blocks (5) are fixedly installed at the bottom end of the moving plate (33). A clamping groove (51) for cooperating with the clamping block (5) is formed on the upper surface of the second L-shaped plate (31).

5. The anti-blocking and back-blowing structure of a flowmeter according to claim 1, characterized in that, A number of annularly and evenly distributed first limiting plates (6) are fixedly installed on the outer part of each connecting rod (28). A first empty groove (61) for cooperating with the first limiting plate (6) is formed through the connecting column (21) at the position of the first circular groove (22).

6. The anti-blocking and back-blowing structure of a flowmeter according to claim 2, wherein A number of second limiting plates (7) evenly distributed in a ring are fixedly installed on the outside of each of the fixed columns (35), and two of the connecting columns (21) are provided with second empty slots (71) matching the second limiting plates (7) at the positions of the second circular grooves (3).

7. The anti-blocking and back-blowing structure of a flowmeter according to claim 2, characterized in that, A number of first anti-slip strips evenly distributed in a ring are fixedly installed on the outside of the runner (29), and a number of second anti-slip strips evenly distributed are fixedly installed on one side of the connecting plate (34) close to the fixed column (35).

8. The anti-blocking and back-blowing structure of a flowmeter according to claim 1, characterized in that, The number of the column grooves (24) and the connecting columns (21) is an even number.

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