Noise reduction Venturi tube

Abstract

The utility model relates to the technical field of venturi tubes, in particular to a noise reduction venturi tube which comprises a venturi tube front end, a venturi tube rear end is arranged on the surface of the right side of the venturi tube front end, a first connecting ring is arranged on one side of the surface of the venturi tube front end, an adaptive groove is formed in the first connecting ring, and a second connecting ring is arranged in the adaptive groove. A connecting flange is arranged on the surface of the left side of the front end of the Venturi tube; the second connecting ring is mounted on the outer surface of the rear end of the Venturi tube, and a mounting ring is arranged on the surface of the left side of the second connecting ring. The fastening ring is installed at the connecting position of the first connecting ring and the second connecting ring, the left side and the right side of the connecting position can be sealed through the design of the first sealing gasket and the second sealing gasket, and therefore the overall sealing effect is good, and after the Venturi tube front end and the Venturi tube rear end are completely sealed, the sealing effect is good. The noise is low when materials are conveyed in the venturi tube front end and the venturi tube rear end, and therefore the noise reduction effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of Venturi tubes, and specifically relates to a noise-reducing Venturi tube. Background Technique

[0002] A Venturi tube is a device for measuring the pressure difference of a fluid. It is a pipe that first contracts and then gradually expands. By measuring the pressure difference between its inlet section and the minimum section, the flow rate can be calculated using Bernoulli's theorem.

[0003] In this regard, Chinese Patent Application No.: CN208547387U discloses a Venturi tube for the technical field of new automated instruments and meters. It includes a front section of the Venturi tube and a rear section of the Venturi tube that are in contact with each other. The front section of the Venturi tube and the rear section of the Venturi tube are fixedly connected through a flange. It also includes a sealing sleeve sleeved outside the flange. The sealing sleeve is provided with a fitting groove that fits with the flange, and the sealing sleeve is fixed to the flange through a fixing member. The utility model has the advantages of preventing rainwater or water vapor from entering the inside of the Venturi tube, protecting the internal structure of the Venturi tube from corrosion, and extending the service life of the Venturi tube.

[0004] However, in actual use, when the Venturi tube is connected, there are many specific operating parts. When the parts are damaged, the Venturi tube will leak during connection, resulting in poor overall sealing performance. At the same time, the above-mentioned Venturi tube does not have a noise reduction effect during use. Therefore, improving and modifying the above problems has become an urgent problem to be solved at present. Content of the Utility Model

[0005] The purpose of the utility model is to provide a noise-reducing Venturi tube to solve the problems mentioned in the above background technique, that is, when the Venturi tube is connected, there are many specific operating parts. When the parts are damaged, the Venturi tube will leak during connection, resulting in poor overall sealing performance. At the same time, the above-mentioned Venturi tube does not have a noise reduction effect during use.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A noise-reducing Venturi tube includes a front end of the Venturi tube. A rear end of the Venturi tube is arranged on the right surface of the front end of the Venturi tube. A first connection ring is arranged on one side of the surface of the front end of the Venturi tube. An adaptation groove is opened inside the first connection ring. A connection flange is arranged on the left surface of the front end of the Venturi tube.

[0007] A second connection ring is installed on the outer surface of the rear end of the Venturi tube. An installation ring is arranged on the left surface of the second connection ring. The installation ring is adapted to the adaptation groove. The left surface of the second connection ring abuts against the right surface of the first connection ring.

[0008] Preferably, a fastening ring is provided on the outer surface of the first connecting ring, and the fastening ring is installed at the connection between the first connecting ring and the second connecting ring.

[0009] Preferably, a first sealing gasket is provided on one side of the inner wall of the fastening ring, and a second sealing gasket is provided on the other side of the inner wall of the fastening ring.

[0010] Preferably, a first clamping block is fixedly connected to the right surface of the first sealing gasket, and a second clamping block is fixedly connected to the left surface of the fastening ring.

[0011] Preferably, fixing members are provided inside the first clamping block and the second clamping block, and the lower surfaces of the first clamping block and the second clamping block sequentially abut against the upper surfaces of the second connecting ring and the first connecting ring.

[0012] Preferably, a first noise reduction ring is provided on the outer surface of the rear end of the Venturi tube, and a second noise reduction ring is provided on the outer surface of the rear end of the Venturi tube.

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

[0014] 1. For this noise-reducing Venturi tube, through the setting of the front end of the Venturi tube, the rear end of the Venturi tube, the first connecting ring, the fitting groove, the second connecting ring, the mounting ring, the fastening ring, the first sealing gasket and the second sealing gasket, during use, first, the front end of the Venturi tube and the rear end of the Venturi tube are docked, and then the first connecting ring and the second connecting ring are fitted together, so that the mounting ring will enter the inside of the fitting groove, and thus the overall stable connection effect between the first connecting ring and the second connecting ring is better. Then, a fastening ring is installed at the connection between the first connecting ring and the second connecting ring. Through the design of the first sealing gasket and the second sealing gasket, the left and right sides of the connection can be sealed, so that the overall sealing effect is better. After completely sealing the front end and the rear end of the Venturi tube, the noise is smaller when the material is conveyed inside the front end and the rear end of the Venturi tube, thus having a noise reduction effect and reflecting the practicability of the design.

[0015] 2. For this noise-reducing Venturi tube, through the setting of the first clamping block, the second clamping block, the fixing member, the first noise reduction ring, the second noise reduction ring and the connecting flange, during use, when the fastening ring is completely installed, at this time, the first clamping block and the second clamping block are sequentially installed on the upper surfaces of the second connecting ring and the first connecting ring, and then fixing members are installed inside the first clamping block and the second clamping block, so that the stable connection between the fastening ring and the first connecting ring and the second connecting ring can be improved, and the overall connection effect is better. Then, the first noise reduction ring and the second noise reduction ring are sequentially sleeved and installed on the outer surfaces of the front end and the rear end of the Venturi tube to enhance its noise reduction effect. Through the connecting flange, the front end of the Venturi tube can be connected to the external pipeline, reflecting the functionality of the design. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional schematic diagram of the structure of the present utility model;

[0017] Figure 2 A disassembled schematic diagram of the structure of the front end of the Venturi tube and the rear end of the Venturi tube of the present utility model;

[0018] Figure 3 A disassembled schematic diagram of the structure of the first connecting ring and the second connecting ring of the present utility model;

[0019] Figure 4 A three-dimensional schematic diagram of the structure of the fastening ring and the first clamping block of the present utility model;

[0020] Figure 5 A three-dimensional schematic diagram of the structure of the fastening ring and the second connecting ring of the present utility model.

[0021] In the figure: 1. Front end of the Venturi tube; 2. Rear end of the Venturi tube; 3. First connecting ring; 4. Adaptation groove; 5. Second connecting ring; 6. Installation ring; 7. Fastening ring; 8. First sealing gasket; 9. Second sealing gasket; 10. First clamping block; 11. Second clamping block; 12. Fixing member; 13. First noise reduction ring; 14. Second noise reduction ring; 15. Connecting flange. Specific embodiments

[0022] 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.

[0023] Please refer to Figures 1-5 , an embodiment provided by the present utility model:

[0024] A Venturi tube for noise reduction. The front end 1 of the Venturi tube, the rear end 2 of the Venturi tube, the first connecting ring 3, the second sealing gasket 9 and the second noise reduction ring 14 used in this application are all products that can be directly purchased on the market. Their principles and connection methods are all prior arts well-known to those skilled in the art, so they will not be elaborated here. It includes the front end 1 of the Venturi tube. The rear end 2 of the Venturi tube is arranged on the right surface of the front end 1 of the Venturi tube. One side of the surface of the front end 1 of the Venturi tube is provided with a first connecting ring 3. An adapter slot 4 is opened inside the first connecting ring 3. The left surface of the front end 1 of the Venturi tube is provided with a connecting flange 15. The outer surface of the first connecting ring 3 is provided with a fastening ring 7. The fastening ring 7 is installed at the connection between the first connecting ring 3 and the second connecting ring 5. One side of the inner wall of the fastening ring 7 is provided with a first sealing gasket 8. The other side of the inner wall of the fastening ring 7 is provided with a second sealing gasket 9. The right surface of the first sealing gasket 8 is fixedly connected with a first clamping block 10. The left surface of the fastening ring 7 is fixedly connected with a second clamping block 11. Fixing parts 12 are arranged inside the first clamping block 10 and the second clamping block 11. The lower surfaces of the first clamping block 10 and the second clamping block 11 sequentially abut against the upper surfaces of the second connecting ring 5 and the first connecting ring 3. The outer surface of the rear end 2 of the Venturi tube is provided with a first noise reduction ring 13. The outer surface of the rear end 2 of the Venturi tube is provided with a second noise reduction ring 14. When the whole fastening ring 7 is installed, at this time, the first clamping block 10 and the second clamping block 11 are sequentially installed on the upper surfaces of the second connecting ring 5 and the first connecting ring 3. Then, the fixing parts 12 are installed inside the first clamping block 10 and the second clamping block 11, so as to improve the stable connection between the fastening ring 7 and the first connecting ring 3 and the second connecting ring 5. The overall connection effect is good. Then, the first noise reduction ring 13 and the second noise reduction ring 14 are sequentially sleeved and installed on the outer surfaces of the front end 1 and the rear end 2 of the Venturi tube to enhance its noise reduction effect. Through the connecting flange 15, the front end 1 of the Venturi tube can be connected to the external pipeline;

[0025] The second connecting ring 5 is installed on the outer surface of the rear end 2 of the Venturi tube. An installation ring 6 is arranged on the left surface of the second connecting ring 5. The installation ring 6 is mutually adapted to the adapter slot 4. The left surface of the second connecting ring 5 abuts against the right surface of the first connecting ring 3. By docking the front end 1 and the rear end 2 of the Venturi tube, and then fitting the first connecting ring 3 and the second connecting ring 5, the installation ring 6 will enter into the adapter slot 4, so that the overall stable connection effect between the first connecting ring 3 and the second connecting ring 5 is good. Then, the fastening ring 7 is installed at the connection between the first connecting ring 3 and the second connecting ring 5. Through the design of the first sealing gasket 8 and the second sealing gasket 9, the left and right sides of the connection can be sealed, so that the overall sealing effect is good. After completely sealing the front end 1 and the rear end 2 of the Venturi tube, the noise is small when the materials are conveyed inside the front end 1 and the rear end 2 of the Venturi tube, so it has the noise reduction effect.

[0026] Working principle: By docking the front end 1 of the Venturi tube and the rear end 2 of the Venturi tube, and then fitting the first connecting ring 3 and the second connecting ring 5 together, the mounting ring 6 will enter the inside of the fitting groove 4. As a result, the overall stable connection effect between the first connecting ring 3 and the second connecting ring 5 is better. Then, a fastening ring 7 is installed at the connection of the first connecting ring 3 and the second connecting ring 5. Through the design of the first gasket 8 and the second gasket 9, the left and right sides of the connection can be sealed, so the overall sealing effect is better. After completely sealing the front end 1 and the rear end 2 of the Venturi tube, the noise is relatively small when conveying materials inside the front end 1 and the rear end 2 of the Venturi tube. When the fastening ring 7 is completely installed, at this time, the first clamping block 10 and the second clamping block 11 are sequentially installed on the upper surfaces of the second connecting ring 5 and the first connecting ring 3. Then, a fixing member 12 is installed inside the first clamping block 10 and the second clamping block 11, which can improve the stable connection between the fastening ring 7 and the first connecting ring 3 and the second connecting ring 5, and the overall connection effect is better. Then, the first noise reduction ring 13 and the second noise reduction ring 14 are sequentially sleeved and installed on the outer surfaces of the front end 1 and the rear end 2 of the Venturi tube to enhance the noise reduction effect. The front end 1 of the Venturi tube can be connected to the external pipeline through the connecting flange 15. The above is all the working principles of the present utility model.

[0027] The above is only the preferred embodiment of the present utility model, and it does not impose any form of limitation on the present utility model; any ordinary technician in the industry can smoothly implement the present utility model according to the instructions in the attached drawings and the above description; however, any minor changes, modifications, and equivalent variations made by those skilled in the art within the scope of the technical solution of the present utility model by using the technical content disclosed above are all equivalent embodiments of the present utility model; at the same time, any equivalent changes, modifications, and variations made to the above embodiments based on the essential technology of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A noise-reducing venturi tube, comprising a venturi tube front end (1), a venturi tube rear end (2) being arranged on the right side surface of the venturi tube front end (1), characterized in that: A first connecting ring (3) is provided on one side of the surface of the front end (1) of the venturi tube, an adapting groove (4) is provided inside the first connecting ring (3), and a connecting flange (15) is provided on the left side surface of the front end (1) of the venturi tube; A second connecting ring (5), the second connecting ring (5) is installed on the outer surface of the rear end (2) of the venturi tube, a mounting ring (6) is provided on the left surface of the second connecting ring (5), the mounting ring (6) and the adapting groove (4) are adapted to each other, the left surface of the second connecting ring (5) contacts the right surface of the first connecting ring (3), a fastening ring (7) is provided on the outer surface of the first connecting ring (3), the fastening ring (7) is installed at the connection between the first connecting ring (3) and the second connecting ring (5), a first sealing gasket (8) is provided on one side of the inner wall of the fastening ring (7), and a second sealing gasket (9) is provided on the other side of the inner wall of the fastening ring (7), a first noise reduction ring (13) is provided on the outer surface of the rear end (2) of the venturi tube, and a second noise reduction ring (14) is provided on the outer surface of the rear end (2) of the venturi tube.

2. A noise-reducing venturi tube according to claim 1, characterized in that: A first clamping block (10) is fixedly connected to the right side surface of the first sealing gasket (8), and a second clamping block (11) is fixedly connected to the left side surface of the fastening ring (7).

3. A noise-reducing venturi tube according to claim 2, characterized in that: The first clamping block (10) and the second clamping block (11) are both provided with fixing parts (12) inside, and the lower surfaces of the first clamping block (10) and the second clamping block (11) are in contact with the upper surfaces of the second connecting ring (5) and the first connecting ring (3) respectively.

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