Pipeline type ultrasonic flowmeter with anti-seismic structure

Abstract

The pipeline type ultrasonic flowmeter with the anti-seismic structure comprises a pipe body and a flowmeter body, one end of the flowmeter body is provided with an anti-seismic assembly used for reducing the vibration frequency of the flowmeter body, the anti-seismic assembly comprises a clamping block and a connecting hole, and the connecting hole is formed in the middle of the clamping block and penetrates through the surface of the clamping block. An inner cavity for accommodating the flowmeter is formed in the protective shell, a limiting rod and a limiting ring are mounted on the surface of the inner cavity, and the limiting ring is connected with the connecting hole through an iron wire; the limiting ring is connected with the connecting hole through the iron wire, the iron wire plays a role in cobweb buffering, direct contact points of the flowmeter and the protective shell are reduced, and therefore the situation that when the protective shell receives impact force, the force is directly transmitted to the surface of the flowmeter is reduced; the acting force applied to the flowmeter by recoil or inertia is reduced through shaking of the iron wire, and the probability of damage to the flowmeter is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic flowmeters, in particular to a pipeline ultrasonic flowmeter with an anti-seismic structure. Background Technique

[0002] A pipeline ultrasonic flowmeter is an instrument that uses ultrasonic technology to measure the flow velocity of fluids, such as liquids or gases, flowing in a closed pipeline. It determines the flow velocity by measuring the time difference of ultrasonic signals propagating in the fluid, and then calculates the flow rate. This type of flowmeter has the characteristics of non-invasive, no pressure loss, simple installation, and low maintenance cost, and is widely used in industries such as water treatment, chemical industry, petroleum, food and beverage.

[0003] The anti-seismic structure design of the ultrasonic flowmeter is to ensure that the fluid flow rate can still be accurately measured in a vibrating environment to reduce the impact of vibration on the measurement accuracy. Usually, clamping or welding installation is used to ensure the tight connection between the sensor and the pipeline, or rubber pads or spring washers are used to absorb part of the vibration energy and reduce the vibration transmitted to the sensor.

[0004] The existing Chinese patent with the reference publication number CN217236888U discloses a pipeline ultrasonic flowmeter, including a pipeline. Connecting blocks are installed on the left and right sides of the top of the pipeline. Through grooves are opened on the left and right sides of the connecting blocks. Sleeves are sleeved on the outer walls of the connecting blocks. An ultrasonic flowmeter is bolted on the inner sides of the left and right sleeves. A measuring instrument is installed at the bottom end of the acoustic flowmeter. A base is clamped in the inner cavity of the sleeve. A stopper is in contact with the bottom end of the base. A groove is opened in the stopper along the left-right direction. A slider is embedded in the inner cavity of the groove. This pipeline ultrasonic flowmeter realizes the convenient installation and disassembly functions of the acoustic flowmeter through structures such as the pipeline, connecting blocks, through grooves, acoustic flowmeter, measuring instrument, sleeves, bases, stoppers, grooves, sliders, cross bars, springs, clamping blocks, and cylindrical grooves, with obvious beneficial effects and strong applicability.

[0005] Although this patent is convenient for installation and disassembly, its ultrasonic flowmeter does not have a relevant buffer structure. During the process of fluid flow, the pipeline and its connection points are affected by the water flow and will generate amplitude and vibration. It connects the ultrasonic flowmeter through bolts. Under the influence of the vibration force, when the bolts reach the specified service life, the vibration may cause the bolts to loosen, resulting in the ultrasonic flowmeter falling to a place outside the specified installation position. Moreover, when the ultrasonic flowmeter is in operation, since the bolts fix the ultrasonic flowmeter, the amplitude and vibration generated by the ultrasonic flowmeter being affected by the water flow over the years may affect its accuracy. Therefore, during use, its anti-seismic structure needs to be processed and improved, which increases the process and reduces the work efficiency. For this reason, the inventor of the present invention proposes a pipeline ultrasonic flowmeter with an anti-seismic structure to solve the above-mentioned technical problems. Summary of the Utility Model

[0006] The utility model aims to overcome the above deficiencies and provides a technical solution that can solve the above problems.

[0007] A pipeline ultrasonic flowmeter with an anti-seismic structure, including a pipe body and a flowmeter. The flowmeter is an ultrasonic flowmeter. The pipe body and the flowmeter are detachable structures. A protective outer frame is installed on the outer side of the pipe body. A protective housing for protecting the flowmeter is connected to the surface of the protective outer frame. One end of the flowmeter is a connecting wire. One end of the connecting wire is connected to a fixed head. One end of the fixed head abuts against the surface of the pipe body;

[0008] An anti-seismic component for reducing the vibration frequency of the flowmeter is provided at one end of the flowmeter. The anti-seismic component includes a clamping block and a connecting hole. The connecting hole is opened in the middle of the clamping block and penetrates the surface of the clamping block. The inside of the protective housing is an inner cavity for accommodating the flowmeter. A limiting rod and a limiting ring are installed on the surface of the inner cavity. The limiting ring is connected to the connecting hole through an iron wire;

[0009] The connection of the limiting ring to the connecting hole through the iron wire can effectively limit the movement of the flowmeter in the protective housing, ensuring that when the flowmeter is subjected to external forces such as vibration or impact, the probability of displacement or damage is reduced. This connection method enhances the anti-seismic performance of the flowmeter, guarantees the stability and accuracy of measurement. At the same time, the iron wire connection structure between the limiting ring and the connecting hole is simple and reliable, convenient for installation and maintenance, and the cost is relatively low. When individual components are damaged, they can be disassembled or replaced separately, reducing the expenditure on maintenance costs and playing a role in cost savings.

[0010] Further, one end of the limiting rod abuts against the surface of the inner cavity. The limiting rods are distributed in a matrix on the surface of the inner cavity. An installation groove is opened at one end of the flowmeter. One end of the installation groove is a clamping groove. The installation groove and the clamping groove are in a stepped shape;

[0011] The installation groove and the card slot are in a stepped shape, which can provide a progressive locking mechanism to ensure that the installation position of the card block in the card slot is both stable and accurate. The stepped shape design allows the limit rod to first contact the card slot during the installation process and then further embed into the installation groove, thus achieving precise positioning of the flowmeter. This structure can prevent the flowmeter from shifting during use, ensure the accuracy of measurement, and is convenient for installation and disassembly, improving the convenience of maintenance. At the same time, an iron wire is used to connect the limit ring through the connection hole, and the iron wire has a spider web buffering effect, reducing the direct contact points between the flowmeter and the protective housing. Therefore, when the protective housing receives an impact force, the force is not directly transmitted to the surface of the flowmeter. In addition, when receiving an impact force, the iron wire sways to reduce the force exerted on the flowmeter by the recoil or inertia, further reducing the probability of damage to the flowmeter.

[0012] Furthermore, a plurality of buffer grooves are provided at one end of the flowmeter, and buffer rubber blocks for increasing the buffer force are installed inside the buffer grooves. The buffer grooves and the buffer rubber blocks are arranged in an interference fit in an embedded manner; the interference fit in an embedded manner can provide sufficient buffer force to absorb and reduce the vibration and impact that may occur during the operation of the flowmeter. This design allows the buffer rubber blocks to deform moderately when subjected to pressure, thereby effectively absorbing energy, extending the service life of the flowmeter, and reducing measurement errors caused by vibration and impact; in addition, the interference fit also facilitates the installation and replacement of the buffer rubber blocks, improving the convenience of maintenance.

[0013] Furthermore, a flow channel is provided in the middle of the pipe body, and a plurality of connection disks for assisting in liquid diversion are installed inside the protective outer frame. One end of the connection disk extends into the flow channel, and the connection disk abuts against one end of the pipe body through mounting screws. A diversion port is provided in the middle of the connection disk, and the diversion port is used to reduce the pressure exerted by the ultrasonic wave;

[0014] The ultrasonic flowmeter is based on the fact that when ultrasonic waves propagate in a fluid, their propagation speed will be affected by the flow velocity of the fluid. The ultrasonic flowmeter internally includes two ultrasonic transducers, which are respectively used as a transmitter and a receiver. The two transducers work alternately to transmit and receive ultrasonic signals;

[0015] When the ultrasonic signal is transmitted from the upstream transducer to the downstream transducer, due to the flow of the fluid inside the flow channel, the propagation time of the signal will be shorter than that in a static fluid; on the contrary, when the signal is transmitted from the downstream transducer to the upstream transducer, the propagation time will be longer; by measuring the propagation time difference of the ultrasonic waves in these two directions, the flow velocity of the fluid can be calculated. Furthermore, combined with the cross-sectional area of the pipeline, the flow rate of the fluid can be obtained;

[0016] When the diversion port is blocked with a soft plug, the fluid inside the flow channel forms a complete closed loop, ensuring that the flow meter can accurately measure the flow rate of the fluid inside the flow channel. When the diversion port is unblocked, the holes release the pressure, thereby increasing the leakage of some fluid, so that the diversion port acts as a buffer to avoid excessive flow of the fluid inside the flow channel and cause accumulation to produce a water hammer effect, thereby reducing the damage of the liquid force to the inside of the flow channel. The measurement method using an ultrasonic flowmeter has the advantages of non-invasiveness, no pressure loss, and fast response speed, and is suitable for flow measurement of liquid or gas in pipes.

[0017] Furthermore, the protective outer frame is abutted against one end of the tube body through a locking screw, and a rubber sealing ring for increasing the sealing performance is provided at one end of the tube body. The rubber sealing ring is located between the protective outer frame and the tube body, and the curvature of the rubber sealing ring is consistent with that of the tube body.

[0018] The consistent curvature of the rubber sealing ring and the tube body can ensure a close fit between the contact surface of the rubber sealing ring and the tube body, thereby effectively preventing leakage of liquid or gas. This design improves the sealing effect, ensures the sealing performance of the connection part, and enhances the stability of the entire structure. In addition, the rubber sealing ring with consistent curvature is also easier to align and place during installation, reducing the difficulty and time during the installation process and improving work efficiency.

[0019] Furthermore, the surface of the tube body is connected with a lifting lug for assisting the movement of the tube body, the lifting lug and the tube body are threadedly connected, and one end of the flow meter is a display screen;

[0020] The setting of the lifting lug makes the pipe body more convenient during transportation or installation, improves the flexibility and safety of operation, and the threaded connection method ensures the firmness between the lifting lug and the pipe body, avoiding the risk of the lifting lug falling off during movement; one end of the flow meter is set as a display screen, allowing the operator to monitor and read the flow data in real time, improving work efficiency and accuracy, and facilitating real-time monitoring and adjustment of the fluid flow status.

[0021] Furthermore, a push rod is connected to the surface of the inner cavity, and a limiting rubber block for assisting the flow meter in buffering and position limitation is installed at one end of the push rod, and the limiting rubber block is in an arc shape;

[0022] The arc shape of the limit rubber block can better disperse the pressure and reduce the local stress concentration on the surface of the flow meter. This design helps to improve the buffering effect, extend the limit rubber block and ensure the buffering effect of the flow meter. At the same time, the arc shape can form a smooth transition when the limit rubber block contacts the flow meter, reducing friction and potential wear, and helping to improve the buffering efficiency. At the same time, the push rods and limit rubber blocks installed at the left and right ends play a role in limiting the position of the flow meter to prevent the flow meter from shaking when it is subjected to impact force.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows: An iron wire is used to connect the limiting ring through the connection hole. The iron wire has the effect of spider web buffering, reducing the direct contact points between the flowmeter and the protective housing. Thus, when the protective housing receives an impact force, the force is not directly transmitted to the surface of the flowmeter. In addition, when receiving an impact force, the iron wire shakes to reduce the reaction force or the force exerted by inertia on the flowmeter, further reducing the probability of damage to the flowmeter;

[0024] Even when the iron wire breaks, the arc-shaped limiting rubber block can better disperse the pressure, reduce the local stress concentration on the surface of the flowmeter, contribute to improving the buffering effect, enabling the flowmeter to form a smooth transition when falling, reducing friction and potential wear, and contributing to improving the buffering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional view of a pipeline ultrasonic flowmeter with an anti-seismic structure;

[0026] Figure 2 is another three-dimensional view of a pipeline ultrasonic flowmeter with an anti-seismic structure;

[0027] Figure 3 is an internal structure diagram of a pipeline ultrasonic flowmeter with an anti-seismic structure;

[0028] Figure 4 is another internal structure diagram of a pipeline ultrasonic flowmeter with an anti-seismic structure;

[0029] Figure 5 is a three-dimensional view of the connection disk in a pipeline ultrasonic flowmeter with an anti-seismic structure;

[0030] Figure 6 is the front view of the flowmeter in a pipeline ultrasonic flowmeter with an anti-seismic structure;

[0031] Figure 7 is a three-dimensional view of the flowmeter in a pipeline ultrasonic flowmeter with an anti-seismic structure;

[0032] Figure 8 is another three-dimensional view of the flowmeter in a pipeline ultrasonic flowmeter with an anti-seismic structure;

[0033] Figure 9 is a side sectional view of the protective housing in a pipeline ultrasonic flowmeter with an anti-seismic structure;

[0034] Figure 10 is the front sectional view of the protective housing in a pipeline ultrasonic flowmeter with an anti-seismic structure;

[0035] In the figure: pipe body - 1, flowmeter - 2, protective outer frame - 3, protective housing - 4, connecting wire - 5, fixing head - 6, clamping block - 7, connecting hole - 8, inner cavity - 9, limiting rod - 10, limiting ring - 11, installation groove - 12, clamping groove - 13, buffer groove - 14, buffer rubber block - 15, flow channel - 16, connecting disk - 17, installation screw - 18, shunt port - 19, locking screw - 20, rubber sealing ring - 21, lifting lug - 22, display screen - 23, ejector rod - 24, limiting rubber block - 25. Specific embodiments

[0036] The following further describes the present utility model in detail in conjunction with the accompanying drawings and specific embodiments.

[0037] In this embodiment, please refer to Figures 1 - 10 , a pipe - type ultrasonic flowmeter with an earthquake - resistant structure specifically implemented includes a pipe body 1 and a flowmeter 2. The flowmeter 2 is an ultrasonic flowmeter. The pipe body 1 and the flowmeter 2 are detachable structures. A protective outer frame 3 is installed on the outer side of the pipe body 1. A protective housing 4 for protecting the flowmeter 2 is connected to the surface of the protective outer frame 3. One end of the flowmeter 2 is a connecting wire 5. One end of the connecting wire 5 is connected to a fixing head 6. One end of the fixing head 6 abuts against the surface of the pipe body 1;

[0038] An earthquake - resistant component for reducing the vibration frequency of the flowmeter 2 is provided at one end of the flowmeter 2. The earthquake - resistant component includes a clamping block 7 and a connecting hole 8. One end of the clamping block 7 is in a T - shape. The connecting hole 8 is opened in the middle of the clamping block 7 and penetrates the surface of the clamping block 7. The inside of the protective housing 4 is an inner cavity 9 for accommodating the flowmeter 2. Limiting rods 10 and limiting rings 11 are installed on the surface of the inner cavity 9. The limiting ring 11 is connected to the connecting hole 8 through an iron wire;

[0039] The connection of the limiting ring 11 to the connecting hole 8 through an iron wire can effectively limit the movement of the flowmeter 2 in the protective housing 4, ensuring that when the flowmeter 2 is subjected to external forces, such as vibration or impact, the probability of displacement or damage is reduced. This connection method enhances the earthquake - resistant performance of the flowmeter 2, ensuring the stability and accuracy of measurement. At the same time, the iron - wire connection structure between the limiting ring 11 and the connecting hole 8 is simple and reliable, facilitating installation and maintenance, and the cost is relatively low. When individual components are damaged, they can be disassembled or replaced separately, reducing the expenditure on maintenance costs and playing a role in cost savings.

[0040] One end of the limiting rod 10 abuts against the surface of the inner cavity 9. The limiting rods 10 are distributed in a matrix on the surface of the inner cavity 9. An installation groove 12 is opened at one end of the flowmeter 2. One end of the installation groove 12 is a clamping groove 13. The installation groove 12 and the clamping groove 13 are in a stepped shape;

[0041] The installation groove 12 and the card slot 13 are in a stepped shape, which can provide a progressive locking mechanism to ensure that the card block 7 is firmly and accurately installed in the card slot 13. The stepped design allows the limit rod 10 to first contact the card slot 13 during installation and then further embed into the installation groove 12, thus achieving precise positioning of the flowmeter 2. This structure can prevent the flowmeter 2 from shifting during use, ensure the accuracy of measurement, and is convenient for installation and disassembly, improving the convenience of maintenance. At the same time, an iron wire is used to connect the limit ring 11 to the connection hole 8. The iron wire has a cobweb buffering effect, reducing the direct contact points between the flowmeter 2 and the protective housing 4. Therefore, when the protective housing 4 receives an impact force, the force is not directly transmitted to the surface of the flowmeter 2. In addition, when receiving an impact force, the iron wire sways to reduce the reaction force or inertia force exerted on the flowmeter 2, further reducing the probability of damage to the flowmeter 2.

[0042] A plurality of buffer grooves 14 are opened at one end of the flowmeter 2. Inside the buffer grooves 14, buffer rubber blocks 15 for increasing the buffer force are installed. The buffer grooves 14 and the buffer rubber blocks 15 are arranged in an interference fit in an embedded manner; the interference fit in an embedded manner can provide sufficient buffer force to absorb and reduce the vibration and impact that may occur during the operation of the flowmeter 2. This design allows the buffer rubber blocks 15 to deform moderately when subjected to pressure, thereby effectively absorbing energy, extending the service life of the flowmeter 2, and reducing the measurement error caused by vibration and impact; in addition, the interference fit also facilitates the installation and replacement of the buffer rubber blocks 15, improving the convenience of maintenance.

[0043] A flow channel 16 is opened in the middle of the pipe body 1. Inside the protective outer frame 3, a plurality of connection plates 17 for assisting in liquid diversion are installed. One end of the connection plate 17 extends into the flow channel 16. The connection plate 17 abuts against one end of the pipe body 1 through the installation screw 18. A diversion port 19 is opened in the middle of the connection plate 17, and the diversion port 19 is used to reduce the pressure exerted by the ultrasonic wave;

[0044] Based on the fact that when ultrasonic waves propagate in a fluid, their propagation speed will be affected by the flow velocity of the fluid, an ultrasonic flowmeter internally includes two ultrasonic transducers (not shown), which serve as a transmitter and a receiver respectively. The two transducers work alternately to transmit and receive ultrasonic signals;

[0045] When the ultrasonic signal is transmitted from the upstream transducer to the downstream transducer, due to the flow of the fluid inside the flow channel 16, the propagation time of the signal will be shorter than that in a static fluid; on the contrary, when the signal is transmitted from the downstream transducer to the upstream transducer, the propagation time will be longer; by measuring the propagation time difference of the ultrasonic waves in these two directions, the flow velocity of the fluid can be calculated. Furthermore, combined with the cross-sectional area of the pipeline, the flow rate of the fluid can be obtained;

[0046] When the shunt port 19 is blocked by a soft plug, the fluid inside the flow channel 16 forms a complete closed loop, ensuring that the flowmeter 2 can accurately measure the flow rate of the fluid inside the flow channel 16. When the shunt port 19 is dredged, the hole plays a role in releasing pressure, thereby increasing the leakage of some fluid, so that the shunt port 19 plays a buffering role, avoiding the water hammer effect caused by excessive flow rate of the fluid inside the flow channel 16 and reducing the damage to the inside of the flow channel 16 caused by the liquid force. Using an ultrasonic flowmeter, this measurement method has the advantages of non-invasive, no pressure loss, fast response speed, etc., and is suitable for measuring the flow rate of liquid or gas in the pipe body 1.

[0047] The protective outer frame 3 abuts against one end of the pipe body 1 through a locking screw 20. A rubber sealing ring 21 for increasing the sealing performance is provided at one end of the pipe body 1. The rubber sealing ring 21 is located between the protective outer frame 3 and the pipe body 1, and the rubber sealing ring 21 is consistent with the radian of the pipe body 1;

[0048] The rubber sealing ring 21 being consistent with the radian of the pipe body 1 can ensure the close fit of the contact surface between the rubber sealing ring 21 and the pipe body, thereby effectively preventing the leakage of liquid or gas. This design improves the sealing effect, ensures the sealing performance of the connection part, and enhances the use stability of the whole structure. In addition, the rubber sealing ring 21 with the same radian is also easier to align and place during installation, reducing the difficulty and time in the installation process and improving the work efficiency.

[0049] A lifting lug 22 for assisting the pipe body 1 to move is connected to the surface of the pipe body 1. The lifting lug 22 is threadedly connected to the pipe body 1. One end of the flowmeter 2 is a display screen 23;

[0050] The setting of the lifting lug 22 makes the pipe body 1 more convenient during handling or installation, improving the flexibility and safety of the operation. And the threaded connection method ensures the firmness between the lifting lug 22 and the pipe body 1, avoiding the risk of the lifting lug falling off during the movement; One end of the flowmeter 2 is set as the display screen 23, enabling the operator to monitor and read the flow data in real time, improving the work efficiency and accuracy, and facilitating the real-time monitoring and adjustment of the fluid flow state.

[0051] A top rod 24 is connected to the surface of the inner cavity 9. A limit rubber block 25 for assisting the buffering and position limitation of the flowmeter 2 is installed at one end of the top rod 24. The limit rubber block 25 is arc-shaped;

[0052] The limiting rubber block 25 is arc-shaped, which can better disperse the pressure and reduce the local stress concentration on the surface of the flowmeter 2. This design helps to improve the buffering effect, extend the service life of the limiting rubber block 25 and ensure the buffering effect of the flowmeter 2. At the same time, the arc shape can make the limiting rubber block 25 form a smooth transition when contacting the flowmeter 2, reduce friction and potential wear, and help to improve the buffering efficiency. At the same time, the ejector rods 24 and the limiting rubber blocks 25 installed at the left and right ends play a role in limiting the position of the flowmeter 2, preventing the flowmeter 2 from shaking when impacted.

[0053] The design key point of the present utility model lies in: using an iron wire to connect the limiting ring 11 with the connection hole 8. The iron wire plays an effect of spider web buffering, reducing the direct contact points between the flowmeter 2 and the protective housing 4. Thus, when the protective housing 4 receives an impact force, the force is not directly transmitted to the surface of the flowmeter 2. In addition, when impacted, the iron wire shakes to reduce the acting force exerted on the flowmeter 2 by the recoil or inertia, further reducing the probability of damage to the flowmeter 2.

[0054] Even when the iron wire breaks, the arc-shaped limiting rubber block 25 can better disperse the pressure, reduce the local stress concentration on the surface of the flowmeter 2, help to improve the buffering effect, make the flowmeter 2 form a smooth transition when falling, reduce friction and potential wear, and help to improve the buffering efficiency.

[0055] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or replacements can still be made, which should all be regarded as the protection scope of the present utility model.

Claims

1. A pipeline ultrasonic flowmeter with an earthquake-resistant structure, comprising a pipe body and a flowmeter, characterized in that: The flowmeter is an ultrasonic flowmeter. The pipe body and the flowmeter are of a detachable structure. A protective outer frame is installed on the outer side of the pipe body. A protective housing for protecting the flowmeter is connected to the surface of the protective outer frame. One end of the flowmeter is a connecting wire, and one end of the connecting wire is connected with a fixing head, and one end of the fixing head abuts against the surface of the pipe body; An anti-seismic component for reducing the vibration frequency of the flowmeter is provided at one end of the flowmeter. The anti-seismic component includes a clamping block and a connecting hole. The connecting hole is opened in the middle of the clamping block and penetrates the surface of the clamping block. The inside of the protective housing is an inner cavity for accommodating the flowmeter. A limiting rod and a limiting ring are installed on the surface of the inner cavity. The limiting ring is connected to the connecting hole through an iron wire.

2. The pipeline ultrasonic flowmeter with a seismic structure according to claim 1, wherein: One end of the limiting rod abuts against the surface of the inner cavity. The limiting rods are distributed in a matrix on the surface of the inner cavity. An installation groove is opened at one end of the flowmeter. One end of the installation groove is a clamping groove. The installation groove and the clamping groove are in a stepped shape.

3. The pipeline ultrasonic flowmeter with an earthquake-resistant structure according to claim 1, characterized in that: A plurality of buffer grooves are opened at one end of the flowmeter. Buffer rubber blocks for increasing the buffer force are installed inside the buffer grooves. The buffer grooves and the buffer rubber blocks are arranged in an interference fit in an embedded manner.

4. A pipeline ultrasonic flowmeter with a seismic structure according to any one of claims 1-3, characterized in that: A flow channel is opened in the middle of the pipe body. A plurality of connecting disks for assisting in liquid shunting are installed inside the protective outer frame. One end of the connecting disk extends into the flow channel. The connecting disk abuts against one end of the pipe body through a mounting screw. A shunt port is opened in the middle of the connecting disk, and the shunt port is used for reducing the pressure applied by ultrasonic waves.

5. A pipeline ultrasonic flowmeter with a seismic structure according to any one of claims 1-3, characterized in that: The protective outer frame abuts against one end of the pipe body through a locking screw. A rubber sealing ring for increasing the sealing performance is provided at one end of the pipe body. The rubber sealing ring is located between the protective outer frame and the pipe body, and the rubber sealing ring has the same radian as the pipe body.

6. A pipeline ultrasonic flowmeter with a seismic structure according to any one of claims 1-3, characterized in that: A lifting lug for assisting the pipe body to move is connected to the surface of the pipe body. The lifting lug is threadedly connected to the pipe body. One end of the flowmeter is a display screen.

7. A pipeline ultrasonic flowmeter with an earthquake-resistant structure according to any one of claims 1-3, characterized in that: A push rod is connected to the surface of the inner cavity. A limiting rubber block for assisting in buffering and position limiting of the flowmeter is installed at one end of the push rod. The limiting rubber block is in an arc shape.

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