Vibration-resistant Venturi tube

Abstract

The utility model relates to the technical field of venturi tubes, and discloses a vibration-resistant venturi tube which comprises a whole venturi tube and an external pipeline, the whole venturi tube comprises a throat part, a diffusion part and a contraction part, and the two ends of the throat part are fixedly connected with the diffusion part and the contraction part respectively; the end of the diffusion part and the end of the contraction part are fixedly connected with flange plates, and the end of the external pipeline is fixedly connected with flange plates. According to the vibration-resistant venturi tube, vibration force generated when the whole venturi tube is installed on an external pipeline for use can be effectively buffered, the purpose of multiple sealing of the pipeline joint can be achieved, the condition of medium leakage is prevented, the sealing effect is improved, normal use of the whole venturi tube is guaranteed, and the service life of the venturi tube is prolonged. Meanwhile, due to the arrangement of the supporting assembly, it can be guaranteed that the whole Venturi tube is installed on the pipeline to achieve the supporting effect, the situation that the whole Venturi tube achieves the supporting effect through the pipeline is avoided, and the burden of the connecting position of the pipeline and the whole Venturi tube is relieved.

Description

Technical Field

[0001] This utility model relates to the field of venturi tube technology, specifically a vibration-resistant venturi tube. Background Technology

[0002] A venturi tube is a device used to measure fluid flow rate. It consists of a contraction section, a throat, and a diffuser section. When fluid flows through a venturi tube, according to Bernoulli's principle, the flow velocity increases and the pressure decreases in the contraction section, and the minimum pressure and maximum flow velocity are reached at the throat. By measuring parameters such as the pressure difference between the contraction section or throat and the upstream section, the flow rate of the fluid can be calculated.

[0003] Vibration-resistant venturi tubes are venturi tubes that can work stably in vibrating environments. Their structure usually employs some special designs to enhance their vibration resistance performance. For example, the support structure of the pipe may be strengthened, and more robust materials may be used to manufacture the pipe body.

[0004] Existing vibration-resistant venturi tubes and outer tubes are rigidly connected via flanges and bolts. Under vibration, the bolts at the connection point are prone to loosening, leading to media spillage and affecting the accuracy of venturi tube measurements. Furthermore, the outer tube to which the venturi tube is connected lacks a support structure, relying instead on the rigidity of the outer tube for support. This increases the load on the connection point during operation, further impacting the measurement results.

[0005] Therefore, it is necessary to propose a vibration-resistant venturi tube. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a vibration-resistant venturi tube, which can buffer vibration at the connection between the venturi tube and the outer tube, preventing bolt loosening and media leakage. At the same time, it can effectively support the venturi tube and reduce the burden on the connection, thus solving the problems mentioned in the background art.

[0007] This utility model provides the following technical solution: a vibration-resistant venturi tube, comprising an integral venturi tube and an external pipe:

[0008] The Venturi tube as a whole includes a throat, a diffuser and a constrictor, with the diffuser and constrictor fixedly connected to the two ends of the throat, respectively.

[0009] The ends of the diffuser and the contraction are fixedly connected to flanges, and the ends of the external pipes are fixedly connected to flanges. The outer surfaces of the two sets of flanges are fitted with outer rings. A connecting ring is fixedly connected to the middle of the inner side wall of the outer ring. An inner ring is fixedly connected to the inner side of the connecting ring. The outer surfaces of the inner ring are fitted with the inner walls of the Venturi tube and the external pipe at the joint. Rubber gaskets are fitted to both sides of the connecting ring. The outer surface of the flange is inserted into the groove formed between the inner and outer rings. The outer surface of the flange is fitted with the side of the rubber gasket.

[0010] Preferably, connecting bolts are connected to both sets of flanges, and connecting seats are fixedly connected to the lower surfaces of the diffuser and the contraction.

[0011] Preferably, a support seat is inserted into the lower side of the connecting seat, and a buffer pad is installed inside the support seat, with the upper surface of the buffer pad fitting against the lower surface of the connecting seat.

[0012] Preferably, the outer diameter of the inner ring is the same as the inner diameter of both ends of the Venturi tube and the end of the external pipe, and the inner diameter of the outer ring is the same as the outer diameter of the flange.

[0013] Preferably, the size of the groove formed by the outer ring and the inner ring is the same as the outer size of the flange, and the diameter of the rubber sealing gasket is the same as the outer diameter of the flange.

[0014] Preferably, the shank of the connecting bolt passes through the rubber sealing gasket and the connecting ring, and the shank of the connecting bolt is movably connected to the interior of the rubber sealing gasket and the connecting ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This type of vibration-resistant Venturi tube, when connected to an external pipeline, has flanges at the ends of the diffuser and contraction sections of the Venturi tube aligning with the flanges at the ends of the external pipeline. Simultaneously, a buffer sealing assembly consisting of an outer ring, an inner ring, and a rubber gasket is placed between them. The outer surfaces of the inner ring are respectively fitted against the inner walls of the pipeline at the connection point. The flange is situated within the annular space formed by the outer and inner rings, with its outer surface fitted against the rubber gasket. The inner sides of the outer ring are respectively fitted against the outer surfaces of the flange of the pipeline at the connection point. The connection is then secured with connecting bolts, completing the connection between the Venturi tube and the external pipeline simultaneously. The connecting seats on both ends of the Venturi tube are placed inside the support base and on the upper surface of the buffer pad. The support base provides buffer support for the Venturi tube. This structure effectively buffers the vibration force generated when the Venturi tube is installed on the external pipeline and provides multiple seals at the pipeline connection to prevent media leakage, improve the sealing effect, and ensure the normal use of the Venturi tube. At the same time, the support component ensures that the Venturi tube is supported on the pipeline, avoiding the need for the pipeline to provide support and reducing the burden on the connection between the pipeline and the Venturi tube. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0018] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the Venturi tube and the external pipe of this utility model;

[0020] Figure 3 This utility model Figure 1 Schematic diagram of partial side section structure;

[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Venturi tube as a whole; 110. Throat; 120. Diverging part; 130. Constriction part;

[0024] 2. External piping;

[0025] 3. Flange; 310. Connecting bolts;

[0026] 4. Outer ring; 410. Inner ring; 420. Rubber sealing gasket; 430. Connecting ring;

[0027] 5. Support base; 510. Connecting base; 520. Buffer pad. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A vibration-resistant venturi tube includes an integral venturi tube 1 and an external conduit 2.

[0030] The Venturi tube assembly 1 includes a throat 110, a diffuser 120, and a constriction 130, with the diffuser 120 and the constriction 130 fixedly connected to the two ends of the throat 110, respectively.

[0031] Flanges 3 are fixedly connected to the ends of both the diffuser section 120 and the contraction section 130. Flanges 3 are also fixedly connected to the ends of both external pipes 2. Outer rings 4 are attached to the outer surfaces of both sets of flanges 3. A connecting ring 430 is fixedly connected to the middle of the inner wall of the outer ring 4. An inner ring 410 is fixedly connected to the inner side of the connecting ring 430. The outer surfaces of the inner ring 410 are attached to the inner walls of the joint between the venturi tube 1 and the external pipe 2 on both sides. Rubber sealing gaskets 420 are attached to both sides of the connecting ring 430. The flange 3 is inserted into the groove formed between the outer side of the flange 3 and the inner ring 410 and the outer ring 4. The outer surface of the flange 3 is in contact with the side of the rubber gasket 420. Connecting bolts 310 are connected to the two sets of flanges 3. Connecting seats 510 are fixedly connected to the lower surfaces of the diffuser 120 and the contraction 130. The shank of the connecting bolt 310 passes through the rubber gasket 420 and the connecting ring 430, and the shank of the connecting bolt 310 is movably connected to the inside of the rubber gasket 420 and the connecting ring 430.

[0032] During connection, the flange 3 at the ends of the diffuser 120 and contraction 130 in the Venturi tube assembly 1 mates with the flange 3 at the end of the external pipe 2. At the same time, a buffer sealing assembly consisting of an outer ring 4, an inner ring 410, and a rubber gasket 420 is placed between the two. The outer surfaces of the two sides of the inner ring 410 are respectively in contact with the inner wall of the pipe at the connection point. The flange 3 is located in the annular space formed by the outer ring 4 and the inner ring 410, and the outer side of the flange 3 is in contact with the rubber gasket 420. The inner two sides of the outer ring 4 are respectively in contact with the outer surface of the flange 3 of the pipe at the connection point. At this time, the connection point is fixed by connecting bolts 310, thus completing the connection between the Venturi tube assembly 1 and the external pipe 2.

[0033] As a preferred technical solution of this utility model, a support seat 5 is inserted into the lower side of the connecting seat 510, and a buffer pad 520 is installed inside the support seat 5. The upper surface of the buffer pad 520 is in contact with the lower surface of the connecting seat 510.

[0034] The connecting seats 510 on the outer surfaces of both ends of the Venturi tube 1 are placed inside the support seat 5 and placed on the upper surface of the buffer pad 520, so that the Venturi tube 1 is buffered and supported by the support seat 5.

[0035] As a preferred technical solution of this utility model, the outer diameter of the inner ring 410 is the same as the inner diameter of both ends of the Venturi tube 1 and the end of the external pipe 2, and the inner diameter of the outer ring 4 is the same as the outer diameter of the flange 3.

[0036] As a preferred technical solution of this utility model, the size of the groove formed by the outer ring 4 and the inner ring 410 is consistent with the external size of the flange 3, and the diameter of the rubber sealing gasket 420 is consistent with the outer diameter of the flange 3.

[0037] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] 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. A vibration-resistant venturi tube, comprising an integral venturi tube (1) and an external conduit (2), characterized in that: The Venturi tube assembly (1) includes a throat (110), a diffuser (120) and a constrictor (130), with the diffuser (120) and the constrictor (130) fixedly connected to the two ends of the throat (110), respectively. The ends of the diffuser (120) and the contraction (130) are fixedly connected to flanges (3), and the ends of the external pipe (2) are fixedly connected to flanges (3). The outer surfaces of the two sets of flanges (3) are fitted with outer rings (4). A connecting ring (430) is fixedly connected to the middle of the inner side wall of the outer ring (4). An inner ring (410) is fixedly connected to the inner side of the connecting ring (430). The outer surfaces of the inner ring (410) are fitted with the inner walls of the Venturi tube assembly (1) and the external pipe (2) at the joint. Rubber gaskets (420) are fitted to both sides of the connecting ring (430). The outer surface of the flange (3) is inserted into the groove formed between the inner ring (410) and the outer ring (4). The outer surface of the flange (3) is fitted with the side of the rubber gasket (420).

2. The vibration-resistant venturi tube according to claim 1, characterized in that: Two sets of flanges (3) are connected with connecting bolts (310), and connecting seats (510) are fixedly connected to the lower surfaces of the diffuser (120) and the contraction (130).

3. A vibration-resistant venturi tube according to claim 2, characterized in that: A support seat (5) is inserted into the lower side of the connecting seat (510), and a buffer pad (520) is installed inside the support seat (5). The upper surface of the buffer pad (520) is in contact with the lower surface of the connecting seat (510).

4. A vibration-resistant venturi tube according to claim 1, characterized in that: The outer diameter of the inner ring (410) is the same as the inner diameter of both ends of the Venturi tube (1) and the end of the external pipe (2), and the inner diameter of the outer ring (4) is the same as the outer diameter of the flange (3).

5. A vibration-resistant venturi tube according to claim 1, characterized in that: The size of the groove formed by the outer ring (4) and the inner ring (410) is consistent with the outer size of the flange (3), and the diameter of the rubber sealing gasket (420) is consistent with the outer diameter of the flange (3).

6. A vibration-resistant venturi tube according to claim 2, characterized in that: The shank of the connecting bolt (310) passes through the rubber sealing gasket (420) and the connecting ring (430), and the shank of the connecting bolt (310) is movably connected to the interior of the rubber sealing gasket (420) and the connecting ring (430).

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