Air flow meter convenient to maintain

Abstract

The utility model discloses an air flow meter convenient to maintain, and relates to the technical field of air flow meters, the air flow meter convenient to maintain comprises a pipe body, a controller and a sensor, the pipe body comprises an upper half pipe and a lower half pipe, a fixing assembly is installed on the pipe body, the fixing assembly comprises two clamping strips which are symmetrically distributed, and clamping grooves are formed in the two sides of the bottom end of the upper half pipe. The two sides of the upper half pipe and the two sides of the lower half pipe are each fixedly provided with two symmetrically-distributed threaded blocks, every two adjacent threaded blocks can be spliced into a complete threaded column, every two adjacent threaded blocks in the eight threaded blocks are each provided with a nut in a threaded mode, one end of the pipe body is provided with a metal net in a threaded mode, and the other end of the pipe body is provided with a nut in a threaded mode. The cleaning assembly is installed in the pipe body and on the metal net, the upper half pipe, the lower half pipe and the fixing assembly are arranged, the upper half pipe and the lower half pipe are assembled into the pipe body through the fixing assembly, and therefore the purpose that parts in the pipe body can be maintained and replaced conveniently is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air flow meters, in particular to an air flow meter which is easy to maintain. Background Art

[0002] An air flow meter is a device that converts the inhaled air flow into an electrical signal. The advantages of an air flow meter are extremely small pressure loss and a large measurable flow range. The ratio of the maximum flow to the minimum flow of an air flow meter is generally above 20:1. It is mainly applicable to a wide range of industrial pipe diameters, up to 3m. The output signal is linear with the measured flow rate and has high accuracy. It can measure the fluid flow of acids, alkalis, salt solutions, water, sewage, corrosive liquids, mud, and slurry with a conductivity ≥1μs / cm, but the air flow meter cannot measure the flow of gases, steam, and pure water.

[0003] Most of the existing air flow meters are integrally formed. When the internal parts of the air flow meter are damaged and need to be repaired, it is not convenient to disassemble and repair and replace the internal parts. In view of the above problem, the inventor proposes an air flow meter that is easy to repair to solve the above problem. Utility Model Content

[0004] In order to solve the problem that most of the existing air flow meters are integrally formed and are not easy to disassemble for maintenance and replacement of internal parts; the purpose of the utility model is to provide an air flow meter that is easy to maintain.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: an air flow meter that is easy to maintain, comprising a tube body, a controller and a sensor, the tube body comprising an upper half tube and a lower half tube, a fixing component being installed on the tube body, the fixing component comprising two symmetrically distributed clamping strips, and the clamping strips are fixedly installed on both sides of the top end of the lower half tube, both sides of the bottom end of the upper half tube are provided with clamping grooves, and the clamping strips can be slidably clamped in the corresponding clamping grooves, two symmetrically distributed threaded blocks are fixedly installed on both sides of the upper half tube and the lower half tube, and two adjacent threaded blocks can be spliced ​​into a complete threaded column, two adjacent threaded blocks among the eight threaded blocks are threadedly installed with nuts, a metal mesh is threadedly installed at one end of the tube body, and a cleaning component is installed on the tube body and the metal mesh.

[0006] Preferably, the cleaning assembly includes a drive shaft, and the drive shaft is rotatably mounted in the lower half tube, and two groups of symmetrically distributed fan blades are fixedly mounted on the drive shaft, and the two groups of fan blades are composed of a plurality of bowl-shaped members distributed in an annular shape.

[0007] Preferably, a cleaning brush is rotatably installed on one side of the metal mesh, and the bristles of the cleaning brush are in contact with the surface of the metal mesh, a rotating shaft is rotatably installed in the lower half tube, and one end of the rotating shaft can be slidably inserted in the central axis of the cleaning brush, one end of the rotating shaft and the middle part of the driving shaft are fixedly installed with bevel gears, and the two bevel gears are meshed.

[0008] Preferably, a controller is fixedly mounted on the upper half tube, two symmetrically distributed mounting ears are fixedly mounted on both the upper half tube and the lower half tube, a sensor is mounted in the upper half tube, and the sensor is detachably mounted on the controller.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. In the utility model, an upper half pipe, a lower half pipe and a fixing assembly are provided, and the upper half pipe and the lower half pipe are assembled into a pipe body by using the fixing assembly, thereby achieving the purpose of facilitating the maintenance and replacement of the internal parts of the pipe body;

[0011] 2. In the utility model, by setting a cleaning component, when the air flow meter is working, the gas blows the fan blades to rotate, the fan blades drive the driving shaft to rotate, the driving shaft drives the rotating shaft to rotate through the bevel gear, and the rotating shaft drives the cleaning brush to rotate to clean the mesh of the metal mesh to prevent the mesh of the metal mesh from being blocked and affecting the air intake. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the split structure of the upper half pipe and the lower half pipe of the utility model;

[0015] Figure 3 It is a schematic diagram of the split structure of the metal mesh and the rotating shaft of the utility model.

[0016] In the figure: 1. tube body; 11. upper half tube; 12. lower half tube; 2. controller; 4. metal mesh; 5. fixing assembly; 51. nut; 52. threaded block; 53. clamping strip; 54. clamping slot; 6. mounting ear; 7. sensor; 8. cleaning assembly; 81. driving shaft; 82. rotating shaft; 83. bevel gear; 84. fan blade; 85. cleaning brush. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example: Figure 1-3 As shown, the utility model provides an air flow meter that is easy to maintain, including a tube body 1, a controller 2 and a sensor 7. The tube body 1 includes an upper half tube 11 and a lower half tube 12. A fixing assembly 5 is installed on the tube body 1. The fixing assembly 5 includes two symmetrically distributed clamping strips 53, and the clamping strips 53 are fixedly installed on both sides of the top of the lower half tube 12. Both sides of the bottom end of the upper half tube 11 are provided with clamping grooves 54, and the clamping strips 53 can be slidably clamped in the corresponding clamping grooves 54. Two symmetrically distributed thread blocks 52 are fixedly installed on both sides of the upper half tube 11 and the lower half tube 12, and two adjacent thread blocks 52 can be spliced ​​into a complete thread column. The eight thread blocks 52 are connected to each other. Nuts 51 are threadedly installed on two adjacent threaded blocks 52, a metal mesh 4 is threadedly installed on one end of the tube body 1, and a cleaning component 8 is installed in the tube body 1 and on the metal mesh 4. The clamping strip 53 on the lower half tube 12 is slidably inserted into the clamping groove 54 on the upper half tube 11, so that the two corresponding threaded blocks 52 on the upper half tube 11 and the lower half tube 12 are spliced ​​into a complete threaded column, and the nut 51 is screwed on to fix it, and the upper half tube 11 and the lower half tube 12 are assembled into the tube body 1, thereby achieving the purpose of facilitating the maintenance and replacement of internal parts of the tube body 1, and using the cleaning component 8 to clean the mesh of the metal mesh 4 to prevent the mesh of the metal mesh 4 from being blocked and affecting the air intake.

[0019] The cleaning assembly 8 includes a driving shaft 81 , and the driving shaft 81 is rotatably installed in the lower half pipe 12 .

[0020] By adopting the above technical solution, the driving shaft 81 is rotated in the lower half pipe 12 .

[0021] Two sets of symmetrically distributed fan blades 84 are fixedly mounted on the driving shaft 81 , and both sets of fan blades 84 are composed of a plurality of bowl-shaped members distributed in an annular shape.

[0022] By adopting the above technical solution, when air is taken in, the gas blows the fan blades 84 to rotate, and the fan blades 84 drive the driving shaft 81 to rotate.

[0023] A cleaning brush 85 is rotatably mounted on one side of the metal mesh 4 , and the bristles of the cleaning brush 85 are in contact with the surface of the metal mesh 4 .

[0024] By adopting the above technical solution, the mesh of the metal mesh 4 is cleaned by using the cleaning brush 85 .

[0025] A rotating shaft 82 is rotatably mounted in the lower half pipe 12 , and one end of the rotating shaft 82 is slidably inserted in the central axis of the cleaning brush 85 .

[0026] By adopting the above technical solution, the rotating shaft 82 drives the cleaning brush 85 to rotate to clean the mesh of the metal mesh 4.

[0027] A bevel gear 83 is fixedly mounted on one end of the rotating shaft 82 and the middle of the driving shaft 81 , and the two bevel gears 83 are meshed.

[0028] By adopting the above technical solution, the driving shaft 81 drives the rotating shaft 82 to rotate through the bevel gear 83.

[0029] The controller 2 is fixedly mounted on the upper half pipe 11 , and two symmetrically distributed mounting ears 6 are fixedly mounted on both the upper half pipe 11 and the lower half pipe 12 .

[0030] By adopting the above technical solution, the controller 2 is used for signal transmission, and the installation ear 6 is used to connect the pipe body 1 with the pipeline for installation.

[0031] A sensor 7 is installed in the upper half pipe 11 , and the sensor 7 can be detachably installed on the controller 2 .

[0032] By adopting the above technical solution, the sensor 7 and the controller 2 are used for signal transmission.

[0033] Working principle: When the utility model is used, firstly, the clamping strip 53 on the lower half pipe 12 is slidably inserted into the clamping groove 54 on the upper half pipe 11, so that the two corresponding threaded blocks 52 on the upper half pipe 11 and the lower half pipe 12 are spliced ​​into a complete threaded column, and the nut 51 is screwed on to fix it, and the upper half pipe 11 and the lower half pipe 12 are assembled into the pipe body 1, thereby achieving the purpose of facilitating the maintenance and replacement of the internal parts of the pipe body 1;

[0034] When air is taken in, the gas blows the fan blades 84 to rotate, and the fan blades 84 drive the driving shaft 81 to rotate. The driving shaft 81 drives the rotating shaft 82 to rotate through the bevel gear 83, and the rotating shaft 82 drives the cleaning brush 85 to rotate to clean the mesh of the metal mesh 4 to prevent the mesh of the metal mesh 4 from being blocked and affecting the air intake.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An air flow meter that is easy to maintain, comprising a tube body (1), a controller (2) and a sensor (7), characterized in that: The tube body (1) comprises an upper tube (11) and a lower tube (12). A fixing assembly (5) is installed on the tube body (1). The fixing assembly (5) comprises two symmetrically distributed clamping strips (53), and the clamping strips (53) are fixedly installed on both sides of the top end of the lower tube (12). Both sides of the bottom end of the upper tube (11) are provided with clamping grooves (54), and the clamping strips (53) can be slidably clamped in the corresponding clamping grooves (54). Two symmetrically distributed thread blocks (52) are fixedly installed on both sides of the upper tube (11) and the lower tube (12), and two adjacent thread blocks (52) can be spliced ​​into a complete thread column. Nuts (51) are threadedly installed on two adjacent thread blocks (52) of the eight thread blocks (52). A metal mesh (4) is threadedly installed on one end of the tube body (1). A cleaning assembly (8) is installed in the tube body (1) and on the metal mesh (4).

2. An air flow meter that is easy to maintain as claimed in claim 1, characterized in that: The cleaning assembly (8) comprises a driving shaft (81), and the driving shaft (81) is rotatably mounted in the lower half pipe (12).

3. An air flow meter that is easy to maintain as claimed in claim 2, characterized in that: Two groups of symmetrically distributed fan blades (84) are fixedly mounted on the driving shaft (81), and the two groups of fan blades (84) are both composed of a plurality of bowl-shaped members distributed in an annular shape.

4. The air flow meter that is easy to maintain as claimed in claim 1, characterized in that: A cleaning brush (85) is rotatably mounted on one side of the metal mesh (4), and the bristles of the cleaning brush (85) are in contact with the surface of the metal mesh (4).

5. The air flow meter that is easy to maintain as claimed in claim 1, characterized in that: A rotating shaft (82) is rotatably mounted in the lower half tube (12), and one end of the rotating shaft (82) can be slidably inserted into the central axis of the cleaning brush (85).

6. An air flow meter that is easy to maintain as claimed in claim 5, characterized in that: A bevel gear (83) is fixedly mounted on one end of the rotating shaft (82) and the middle of the driving shaft (81), and the two bevel gears (83) are meshed.

7. An air flow meter that is easy to maintain as claimed in claim 1, characterized in that: A controller (2) is fixedly mounted on the upper half pipe (11), and two symmetrically distributed mounting ears (6) are fixedly mounted on both the upper half pipe (11) and the lower half pipe (12).

8. The air flow meter that is easy to maintain as claimed in claim 1, characterized in that: A sensor (7) is installed in the upper half pipe (11), and the sensor (7) is detachably installed on the controller (2).

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