An air flow meter assembly

Abstract

The utility model belongs to air flowmeter technical field, concretely relates to an air flowmeter assembly, including the casing, the left side fixed coupling of casing has import flange, the right side fixed coupling of casing has export flane, the upper end fixed coupling of casing has the base, the upper end fixed coupling of base has the top seat, the upper end fixed coupling of top seat has the flowmeter body, import flange and export flane are same, the inside left side of casing is provided with filter mechanism, the inside of import flange and export flane is provided with sealing mechanism respectively, through the setting of baffle ring, the position of filter hopper is limited, avoids filter hopper to move to right, through the clamping of antiskid ring, the outside of filter hopper is limited and is prevented from slipping, increases the position stability of filter hopper, avoids to separate, and while filter hopper also is convenient through import flange place and separates the inside of casing, is convenient to remove and carries out clean and removes the work of dirt, avoids filter hopper mesh hole and is blocked and influences use effect.

Description

Technical Field

[0001] This utility model relates to the field of air flow meter technology, specifically to an air flow meter assembly. Background Technology

[0002] An air flow meter is a device that converts the flow rate of intake air into an electrical signal. The advantages of an air flow meter include extremely low pressure loss and a wide measurable flow range. The ratio of maximum to minimum flow rate is typically 20:1 or higher, it is suitable for a wide range of industrial pipe diameters, up to 3m, and the output signal is linear with the measured flow rate. It has high accuracy and can measure the flow rate of fluids with conductivity ≥1μs / cm, such as acid, alkali, salt solutions, water, sewage, corrosive liquids, slurry, and mineral slurry. However, air flow meters cannot measure the flow rate of gases, steam, or pure water.

[0003] According to patent authorization announcement number CN211147772U, an air flow meter assembly belongs to the field of air flow meters. It includes a tubular housing, with the right side of the tubular housing as the air inlet. A retaining ring is fixedly connected inside the air inlet. The retaining ring has a groove. L-shaped rods are evenly fixedly connected to the right side of the retaining ring. Fixing posts are evenly fixedly connected inside the groove. A stop block is rotatably connected to the fixing post. A friction pad is fixedly connected to one side of the stop block. A filter is slidably connected inside the retaining ring. An installation sleeve is fixedly connected to the upper end of the tubular housing. The upper end of the installation sleeve has a slot. A sealing ring is placed inside the slot. The retaining ring, L-shaped rods and stop block facilitate the installation and removal of the filter, avoiding the drawbacks of using bolts and nuts for fixing. The slot is connected to the cover, and the installation sleeve is connected to the cover plate. This not only facilitates the installation and fixing of the flow meter body, but also facilitates the removal of the flow meter body from the inside of the installation sleeve.

[0004] However, the filters installed inside existing air flow meters are mostly fixed connections. Fixed connections make it difficult to remove the filters, making them difficult to clean and decontaminate. After prolonged use, the filter mesh is easily clogged with dirt, thus affecting the performance. At the same time, the sealing rings at the connecting flanges have poor limiting effects and are prone to coming off the flange, thus affecting the sealing effect of the sealing rings. Utility Model Content

[0005] The purpose of this invention is to provide an air flow meter assembly that solves the problems of filter placement and sealing ring placement.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an air flow meter assembly, including a housing, an inlet flange fixedly connected to the left side of the housing, an outlet flange fixedly connected to the right side of the housing, a base fixedly connected to the upper end of the housing, a top seat fixedly connected to the upper end of the base, and a flow meter body fixedly connected to the upper end of the top seat. The inlet flange and the outlet flange are of the same size. The flow meter body is disposed at the upper end of the housing. A filter mechanism is disposed on the left side inside the housing. Sealing mechanisms are disposed inside the inlet flange and the outlet flange, respectively.

[0007] Preferably, the filtration mechanism includes a filter bucket, the filter bucket is slidably connected to the left side of the inside of the housing, and a baffle is fixedly connected to the left side of the lower end of the filter bucket.

[0008] Preferably, a plurality of locking blocks are fixedly connected to the right side of the filter bucket, and a retaining ring is fixedly connected to the left side of the inner side of the housing. The retaining ring has a plurality of locking holes, and the locking blocks are slidably connected to the inside of the locking holes.

[0009] Preferably, an anti-slip ring is fixedly connected to the inner left side of the housing, the anti-slip ring is in close contact with the outer side of the filter bucket, and the filter bucket is located on the left side of the retaining ring.

[0010] Preferably, the sealing mechanism includes an annular groove, and the inlet flange and outlet flange are respectively provided with annular grooves. A first gasket is connected inside the annular groove, an elastic ring is fixedly connected to one side of the first gasket, and a second gasket is fixedly connected to the other side of the elastic ring.

[0011] Preferably, the elastic ring and the second washer are respectively disposed inside the annular groove, and the first washer and the second washer are the same size.

[0012] Preferably, a plurality of limiting blocks are fixedly connected to one side of the first gasket, and the inlet flange and the outlet flange are respectively provided with a plurality of limiting grooves, and the limiting blocks are slidably connected inside the limiting grooves.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model limits the filter bucket by setting a retaining ring to prevent it from moving to the right. The anti-slip ring limits the outer side of the filter bucket to prevent slippage, increasing the stability of the filter bucket and preventing it from falling off. At the same time, the filter bucket can also be easily removed from the inside of the shell through the inlet flange, making it easy to remove for cleaning and decontamination, and preventing the filter bucket mesh from being blocked and affecting the performance.

[0015] 2. The present invention, through the setting of the annular groove, facilitates the snap-fit ​​and limiting of the first gasket, elastic ring and second gasket, increases the installation and limiting stability of the first gasket, elastic ring and second gasket, prevents them from falling out of the interior of the inlet flange and outlet flange, and improves the sealing effect. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model has a partial three-dimensional structure. Figure 1 ;

[0018] Figure 3 This utility model has a partial three-dimensional structure. Figure 2 ;

[0019] Figure 4 This utility model has a partial three-dimensional structure. Figure 3 ;

[0020] Figure 5 This is a partial sectional view of the overall structure of this utility model.

[0021] In the diagram: 1. Housing, 2. Inlet flange, 3. Outlet flange, 4. Base, 5. Top seat, 6. Flow meter body, 7. Filter mechanism, 8. Sealing mechanism, 71. Filter hopper, 72. Baffle, 73. Locking block, 74. Retaining ring, 75. Locking hole, 76. Anti-slip ring, 81. Ring groove, 82. First washer, 83. Elastic ring, 84. Second washer, 85. Limiting block, 86. Limiting groove. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 , Figure 5An air flow meter assembly includes a housing 1. An inlet flange 2 is fixedly connected to the left side of the housing 1, and an outlet flange 3 is fixedly connected to the right side of the housing 1. The inlet flange 2 and the outlet flange 3 are existing technologies and will not be described in detail here. A base 4 is fixedly connected to the upper end of the housing 1, and a top seat 5 is fixedly connected to the upper end of the base 4. A flow meter body 6 is fixedly connected to the upper end of the top seat 5. The flow meter body 6 is existing technology and will not be described in detail here. The inlet flange 2 and the outlet flange 3 are the same size. The flow meter body 6 is located at the upper end of the housing 1. A filter mechanism 7 is provided inside the left side of the housing 1. Sealing mechanisms 8 are respectively provided inside the inlet flange 2 and the outlet flange 3.

[0024] Please see Figure 2 , Figure 4 , Figure 5 The filter mechanism 7 includes a filter bucket 71. The filter bucket 71 is slidably connected to the left side of the inside of the housing 1. A baffle 72 is fixedly connected to the lower left side of the inside of the filter bucket 71. The baffle 72 is used to block dirt and prevent the dirt in the lower part of the filter bucket 71 from being blown away when the gas flows in, thus achieving the effect of blocking dirt. Multiple locking blocks 73 are fixedly connected to the right side of the filter bucket 71. A retaining ring 74 is fixedly connected to the left side of the inside of the housing 1. The retaining ring 74 has multiple locking holes 75. The locking blocks 73 slide and engage with the locking holes 75 to limit the position of the filter bucket 71. The locking blocks 73 are slidably connected to the inside of the locking holes 75. An anti-slip ring 76 is fixedly connected to the left side of the inside of the housing 1. The anti-slip ring 76 is used to limit and prevent the filter bucket 71 from slipping. The anti-slip ring 76 is close to the outside of the filter bucket 71. The filter bucket 71 is located to the left of the retaining ring 74.

[0025] Please see Figure 1 , Figure 3 , Figure 5 The sealing mechanism 8 includes an annular groove 81. The inlet flange 2 and the outlet flange 3 are each provided with an annular groove 81. A first gasket 82 is connected inside the annular groove 81. The annular groove 81 limits the first gasket 82, the elastic ring 83, and the second gasket 84, respectively, increasing the installation stability. The elastic ring 83 is fixedly connected to one side of the first gasket 82, and the second gasket 84 is fixedly connected to the other side of the elastic ring 83. The elastic ring 83 and the second gasket 84 are respectively located inside the annular groove 81. The first gasket 82 and the second gasket 84 are the same size. Multiple limiting blocks 85 are fixedly connected to one side of the first gasket 82. The inlet flange 2 and the outlet flange 3 are each provided with multiple limiting grooves 86. The connection between the limiting blocks 85 and the limiting grooves 86 limits the first gasket 82, increasing the limiting stability of the first gasket 82. The limiting blocks 85 are slidably connected inside the limiting grooves 86.

[0026] The specific implementation process of this utility model is as follows: When in use, the gas flows into the interior of the filter bucket 71 through the inlet flange 2, filters the gas through the filter bucket 71, and then the filtered dirt falls and is collected at the lower end of the interior of the filter bucket 71. Then the gas flows into the interior of the housing 1 through the filter bucket 71, and finally is discharged through the outlet flange 3.

[0027] The first gasket 82, the elastic ring 83, and the second gasket 84 are used to limit the movement, thereby increasing the stability of the installation and ensuring that the connection between the inlet flange 2 and the outside and the connection between the outlet flange 3 and the outside are sealed to prevent gas leakage.

[0028] 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. An air flow meter assembly, comprising a housing (1), characterized in that: An inlet flange (2) is fixedly connected to the left side of the housing (1), an outlet flange (3) is fixedly connected to the right side of the housing (1), a base (4) is fixedly connected to the upper end of the housing (1), a top seat (5) is fixedly connected to the upper end of the base (4), and a flow meter body (6) is fixedly connected to the upper end of the top seat (5). The inlet flange (2) and the outlet flange (3) are the same size. The flow meter body (6) is located at the upper end of the housing (1). A filter mechanism (7) is provided on the left side inside the housing (1). Sealing mechanisms (8) are provided inside the inlet flange (2) and the outlet flange (3), respectively.

2. An air flow meter assembly according to claim 1, characterized in that: The filtration mechanism (7) includes a filter bucket (71), the filter bucket (71) is slidably connected to the left side of the inside of the housing (1), and a baffle (72) is fixedly connected to the lower left side of the inside of the filter bucket (71).

3. An air flow meter assembly according to claim 2, characterized in that: Multiple locking blocks (73) are fixedly connected to the right side of the filter bucket (71), and a retaining ring (74) is fixedly connected to the left side of the inside of the housing (1). The retaining ring (74) has multiple locking holes (75), and the locking blocks (73) are slidably connected to the inside of the locking holes (75).

4. An air flow meter assembly according to claim 3, characterized in that: An anti-slip ring (76) is fixedly connected to the inside left side of the housing (1). The anti-slip ring (76) is close to the outside of the filter bucket (71). The filter bucket (71) is located on the left side of the retaining ring (74).

5. An air flow meter assembly according to claim 1, characterized in that: The sealing mechanism (8) includes an annular groove (81). The inlet flange (2) and the outlet flange (3) are respectively provided with an annular groove (81). A first gasket (82) is connected inside the annular groove (81). An elastic ring (83) is fixedly connected to one side of the first gasket (82), and a second gasket (84) is fixedly connected to the other side of the elastic ring (83).

6. An air flow meter assembly according to claim 5, characterized in that: The elastic ring (83) and the second washer (84) are respectively disposed inside the annular groove (81), and the first washer (82) and the second washer (84) are the same size.

7. An air flow meter assembly according to claim 5, characterized in that: Multiple limiting blocks (85) are fixedly connected to one side of the first gasket (82). Multiple limiting grooves (86) are respectively opened on the inlet flange (2) and the outlet flange (3). The limiting blocks (85) are slidably connected to the inside of the limiting grooves (86).

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