Ultrasonic flowmeter

Abstract

The utility model discloses an ultrasonic flowmeter, which relates to the technical field of flowmeters and particularly comprises a fixing clamp, the top of the fixing clamp is movably connected with a rotating plate, a meter head is fixed on one side of the rotating plate, and protective boxes are fixed on two sides of the fixing clamp through connecting rods. A probe is connected in an inner cavity of the protection box through a first spring, the probe is connected with the meter head through a connecting line, a positioning groove is formed in one side of the protection box, a positioning block is movably connected in an inner cavity of the positioning groove, the positioning block is movably connected with the top end of the probe, and a first through hole is formed in one side of the bottom end of the fixing clamp. According to the ultrasonic flow meter, through arrangement of all structures in the fixing clamp, the ultrasonic flow meter can be fixed to pipelines of various sizes, the adaptability of the ultrasonic flow meter is improved, the flow meter can be disassembled and assembled only by moving the clamping plate, pulling the pull rod and rotating the limiting rod, and the disassembling and assembling efficiency of the ultrasonic flow meter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, in particular to an ultrasonic flow meter. Background Art

[0002] An ultrasonic flowmeter is an instrument used to measure the flow of liquid or gas. It uses ultrasonic technology to measure the velocity of the fluid and calculate the flow rate. In the prior art, some technical solutions for ultrasonic flowmeters are disclosed, such as an ultrasonic flowmeter disclosed in the authorized patent with application number CN202320010439.7, including a meter head and a support pipe clamp; the meter head is installed on the upper part of the ball head support, and the two ends of the ball head support are respectively fixed on the upper part of one side of the support pipe clamp, the right side of the meter head is connected to one end of two data lines, the other end of one data line is connected to the upstream probe, and the other end of the other data line is connected to the downstream probe, the upstream probe is installed on the upstream pipe clamp, and the downstream probe is installed on the downstream pipe clamp. The support pipe clamp has the same structure as the upstream pipe clamp and the downstream pipe clamp, and the downstream pipe clamp includes components such as a movable clamp and a fixed clamp.

[0003] Since the meter head and the probe in the above scheme are respectively fixed to the pipe to be tested by pipe clamps, when the above scheme is used, the staff needs to fix or remove the meter head and the probe in turn, which affects the disassembly and assembly efficiency of the ultrasonic flowmeter, and the pipe clamp needs to be replaced to make the above scheme adapt to pipes of different sizes, which affects the adaptability of the above scheme; based on this, the present application proposes an ultrasonic flowmeter. Utility Model Content

[0004] The utility model provides an ultrasonic flow meter, which solves the problem proposed in the above background technology that a meter head and a probe are fixed together with a pipe to be measured by different pipe clamps, and a worker needs to fix or remove the meter head and the probe in turn, which affects the disassembly and assembly efficiency of the ultrasonic flow meter, and the pipe clamp needs to be replaced in order to make the above scheme adaptable to pipes of different sizes, which affects the adaptability of the above scheme.

[0005] The utility model provides the following technical solutions: an ultrasonic flow meter, comprising a fixing clamp, the top of the fixing clamp is movably connected with a rotating plate, a meter head is fixed on one side of the rotating plate, a protective box is fixed on both sides of the fixing clamp through a connecting rod, a probe is connected to the inner cavity of the protective box through a spring 1, the probe and the meter head are connected through a connecting line, a positioning groove is provided on one side of the protective box, a positioning block is movably connected to the inner cavity of the positioning groove, the positioning block is movably connected to the top of the probe, a through hole 1 is provided on one side of the bottom end of the fixing clamp, a pull rod is connected to the inner cavity of the through hole 1 through a spring 2, a splint is movably connected to the outer ring of the top end of the pull rod, a through hole 2 is provided on the other end of the bottom end of the fixing clamp, a limit rod is movably connected to the inner cavity of the through hole 2, and a limit groove adapted to the limit rod is provided on the side of the splint close to the limit rod.

[0006] Preferably, a box hole is provided at the bottom of the protective box, and the probe is adapted to the inner cavity of the box hole.

[0007] Preferably, the positioning groove is in an inverted L-shape, and the horizontal end of the positioning groove is adapted to the positioning block.

[0008] Preferably, the pull rod is movably connected to the bottom of the inner cavity of the through hole 1, the pull rod is a hollow structure, the spring 2 is located in the inner cavity of the pull rod, the top of the spring 2 is fixedly connected to the top of the inner cavity of the through hole 1, and the outer ring of the top end of the pull rod is fixedly connected to a limiting block.

[0009] Preferably, the splint is of a U-shaped structure, the limit block is located in an inner cavity of the splint, and the inner wall of the splint is provided with a sliding groove adapted to the limit block.

[0010] Preferably, the end of the limit groove close to the pull rod is an arc structure, the diameter of the arc structure is the same as the diameter of the circumscribed circle of the limit rod, the other end of the limit groove is a straight line, and the width value of the other end of the limit groove is the same as the thickness value of the limit rod, and the diameter of the arc structure is greater than the width value of the other end of the limit groove.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The ultrasonic flowmeter can be fixed on pipes of various sizes through the arrangement of various structures in the fixing clamp, thereby improving the adaptability of the ultrasonic flowmeter. Moreover, the flowmeter can be disassembled and assembled only by moving the clamp, pulling the pull rod and rotating the limit rod, thereby improving the disassembly and assembly efficiency of the ultrasonic flowmeter.

[0013] 2. The ultrasonic flowmeter is provided with a protective box. When the ultrasonic flowmeter is carried, the protective box can protect the probe and reduce the probability of damage to the probe. The rebound force of the spring can squeeze the probe, so that when the flowmeter is in use, the probe and the pipe to be measured can fit tightly, which is convenient for the use of the flowmeter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of the structure of the utility model;

[0015] Figure 2 The utility model structure Figure 1 Back side diagram;

[0016] Figure 3 This is a schematic diagram of the bottom of the structural protection box of the utility model;

[0017] Figure 4 This is a schematic diagram of the interior of the protection box of the utility model structure;

[0018] Figure 5 This is a cross-sectional schematic diagram of the structural fixing clamp of the utility model;

[0019] Figure 6 It is an exploded schematic diagram of the structural fixing clamp of the utility model.

[0020] In the figure: 1. fixing clamp; 2. rotating plate; 3. meter head; 4. connecting rod; 5. protective box; 6. limiting rod; 7. clamping plate; 8. limiting groove; 9. spring 2; 10. pull rod; 11. limiting block; 12. connecting wire; 13. spring 1; 14. box hole; 15. probe; 16. positioning block; 17. positioning groove. DETAILED DESCRIPTION

[0021] 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.

[0022] The utility model provides an ultrasonic flow meter, comprising a fixing clamp 1, the top of the fixing clamp 1 is movably connected with a rotating plate 2, one side of the rotating plate 2 is fixedly connected with a meter head 3, through the setting of the rotating plate 2, the position of the meter head 3 can be adjusted according to demand, which is convenient for reading, and there is damping between the rotating plate 2 and the fixing clamp 1, under the action of external force, the rotating plate 2 can rotate, the restriction on the rotating plate 2 is released, and the position of the rotating plate 2 can remain unchanged.

[0023] Protective boxes 5 are fixed on both sides of the fixing clamp 1 through connecting rods 4. Through the setting of the connecting rods 4, when the ultrasonic flowmeter is in use, it is only necessary to fix the fixing clamp 1 on the pipeline to be measured to fix the position of the meter head 3 and the probe 15, thereby improving the disassembly and assembly efficiency of the ultrasonic flowmeter.

[0024] In some embodiments of the present application, the connecting rod 4 may be a telescopic rod, and the length of the connecting rod 4 may be adjusted as needed, so that the position of the probe 15 may be adjusted as needed, thereby improving the adaptability of the ultrasonic flow meter.

[0025] The bottom of the protection box 5 is at the same height as the top of the inner cavity of the fixing clamp 1, the top of the inner cavity of the protection box 5 is fixedly connected with a spring 13, the bottom of the spring 13 is connected with a probe 15, the probe 15 is movably connected with the inner cavity of the protection box 5, the bottom of the protection box 5 is provided with a box hole 14, the bottom of the probe 15 can contact the outer surface of the pipeline through the box hole 14, and the probe 15 is connected to the meter head 3 through the connecting line 12. In some embodiments of the present application, the model of the ultrasonic flowmeter body composed of the probe 15 and the meter head 3 is HD-WJ.

[0026] A positioning groove 17 is provided on one side of the protection box 5. A positioning block 16 is movably connected in the inner cavity of the positioning groove 17. The positioning block 16 is movably connected to the top of the probe 15. The positioning groove 17 is inverted L-shaped. The horizontal end of the positioning groove 17 is adapted to the positioning block 16. Under the action of external force, the positioning block 16 can move horizontally. Through the arrangement of the positioning block 16 and the positioning groove 17, when the positioning block 16 is in the vertical end of the positioning groove 17, the rebound force of the spring 13 can push the probe 15 to move, so that the probe 15 can fit tightly with the outer surface of the pipeline, which is convenient for the use of the ultrasonic flowmeter. When the positioning block 16 is in the horizontal end of the positioning groove 17, the positioning groove 17 can limit the positioning block 16, so that the position of the probe 15 remains unchanged. At this time, the probe 15 is located in the inner cavity of the protection box 5, and the protection box 5 can protect the probe 15.

[0027] A through hole 1 is provided on one side of the bottom end of the fixing clamp 1, and a pull rod 10 is movably connected to the bottom of the inner cavity of the through hole 1. The pull rod 10 is an inverted T-shaped structure, and the vertical end of the pull rod 10 is movably connected to the inner cavity of the through hole 1. The vertical end of the pull rod 10 is a hollow structure, and a spring 29 is fixedly connected to the bottom of the inner cavity of the vertical end of the pull rod 10, and the other end of the spring 29 is fixedly connected to the top of the inner cavity of the through hole 1. Through the setting of the spring 29, the position of the pull rod 10 can be changed under the action of external force, and the restriction on the pull rod 10 is released. The rebound force of the spring 29 can drive the pull rod 10 to reset.

[0028] The outer ring of the top end of the pull rod 10 is fixedly connected to the limit block 11, and the outer ring of the limit block 11 is movably connected to the clamping plate 7, which is movably connected to the inner cavity of the through hole 1. The clamping plate 7 is a U-shaped structure, and the limit block 11 is located in the inner cavity of the clamping plate 7. The inner wall of the clamping plate 7 is provided with a sliding groove adapted to the limit block 11. Through the arrangement of the clamping plate 7, the clamping plate 7 can move horizontally under the action of external force.

[0029] A through hole 2 is provided on the other side of the bottom end of the fixing clamp 1, and the through hole 2 is adapted to the clamp plate 7. A limit rod 6 is movably connected to one side of the inner cavity of the through hole 2. A limit groove 8 adapted to the limit rod 6 is provided on the side of the clamp plate 7 close to the limit rod 6, and the end of the limit groove 8 close to the pull rod 10 is an arc structure, and the diameter of the arc structure is the same as the diameter of the circumscribed circle of the limit rod 6. The other end of the limit groove 8 is a straight line, and the width value of the other end of the limit groove 8 is the same as the thickness value of the limit rod 6, and the diameter of the arc structure is greater than the width value of the other end of the limit groove 8. The size of the limit groove 8 can be set according to demand, and is not limited here. Through the setting of the limit groove 8 and the limit rod 6, when the clamp 7 moves horizontally, the limit rod 6 can move into the arc-shaped end of the limit groove 8, and when the clamp 7 is rotated to make the clamp 7 and the other end of the limit groove 8 staggered, the limit groove 8 can limit the limit rod 6, so that the clamp 7 cannot be separated from the limit rod 6, and the clamp 7 is limited in the horizontal direction. The spring 9 enables the clamp 7 to be limited in the vertical direction. The coordinated use of the two enables the clamp 7 to fit tightly with the pipeline, and the ultrasonic flow meter can be fixed on the pipeline.

[0030] The outer surface of the clamp plate 7 is wrapped with an isolation pad, which can be made of rubber. The isolation pad is provided to increase the friction between the clamp plate 7 and the pipeline, thereby improving the reliability of the fixation of the ultrasonic flow meter. The resilience of the isolation pad can reduce the impact force between the clamp plate 7 and the pipeline.

[0031] The electrical components involved in this application are all prior art, and technicians in this field are familiar with their connection methods. Through these technicians, all the electrical components in this application are connected to their compatible power supplies through wires, and according to the actual situation, a suitable controller is selected to meet the control requirements. The specific connection and control sequence are described below. The electrical connection is completed in a sequential working order, and the detailed connection means are well known in the art. The following mainly introduces the working principle and process, and no further explanation of the electrical control is given.

[0032] To sum up: when the ultrasonic flow meter is used, the user pulls the clamp 7 outward so that one end of the clamp 7 with the limiting groove 8 is tightly fitted with the limiting block 11. At this time, the end of the clamp 7 with the limiting groove 8 is flush with the inner wall of the fixing clamp 1. After the user puts the fixing clamp 1 on the pipe to be measured, the user pulls the pull rod 10 downward, and the pull rod 10 drives the clamp 7 to move downward until the clamp 7 moves to the bottom of the pipe. The user pushes the clamp 7 inward so that the other end of the clamp 7 is located in the inner cavity of the through hole 2. At this time, the limiting rod 6 enters the arc of the limiting groove 8. In the shaped segment, the restriction on the pull rod 10 is released, and the rebound force of the spring 1 9 drives the pull rod 10 to move, and the pull rod 10 drives the clamping plate 7 to move until the clamping plate 7 is tightly fitted with the pipe, and the position of the clamping plate 7 in the vertical direction is fixed. The user then rotates the limit rod 6 to stagger the limit rod 6 and the I-shaped segment of the limit groove 8, and uses the limit rod 6 to limit the clamping plate 7 in the horizontal direction. The ultrasonic flow meter is fixed on the pipe to be tested, and the rebound force of the spring 13 makes the probe 15 fit tightly with the pipe to be tested, which is convenient for the use of the ultrasonic flow meter.

[0033] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art and will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. An ultrasonic flow meter, comprising a fixing clamp (1), characterized in that: The top of the fixing clamp (1) is movably connected to a rotating plate (2), a meter head (3) is fixed to one side of the rotating plate (2), a protection box (5) is fixed to both sides of the fixing clamp (1) via connecting rods (4), a probe (15) is connected to the inner cavity of the protection box (5) via a spring (13), the probe (15) and the meter head (3) are connected via a connecting line (12), a positioning groove (17) is provided on one side of the protection box (5), a positioning block (17) is movably connected to the inner cavity of the positioning groove (17) 16), the positioning block (16) is movably connected to the top of the probe (15), a through hole 1 is provided on one side of the bottom end of the fixing clamp (1), a pull rod (10) is connected to the inner cavity of the through hole 1 through a spring 2 (9), the outer ring of the top end of the pull rod (10) is movably connected to a clamp (7), the other end of the bottom end of the fixing clamp is provided with a through hole 2, a limit rod (6) is movably connected to the inner cavity of the through hole 2, and a limit groove (8) adapted to the limit rod (6) is provided on one side of the clamp (7) close to the limit rod (6).

2. An ultrasonic flow meter according to claim 1, characterized in that: The bottom of the protection box (5) is provided with a box hole (14), and the probe (15) is adapted to fit into the inner cavity of the box hole (14).

3. An ultrasonic flow meter according to claim 1, characterized in that: The positioning groove (17) is in an inverted L-shape, and the horizontal end of the positioning groove (17) is adapted to the positioning block (16).

4. An ultrasonic flow meter according to claim 1, characterized in that: The pull rod (10) is movably connected to the bottom of the inner cavity of the through hole. The pull rod (10) is a hollow structure. The spring 2 (9) is located in the inner cavity of the pull rod (10). The top of the spring 2 (9) is fixedly connected to the top of the inner cavity of the through hole. The outer ring of the top of the pull rod (10) is fixedly connected to the limit block (11).

5. An ultrasonic flow meter according to claim 4, characterized in that: The clamping plate (7) is of a U-shaped structure, the limiting block (11) is located in the inner cavity of the clamping plate (7), and the inner wall of the clamping plate (7) is provided with a sliding groove adapted to the limiting block (11).

6. An ultrasonic flow meter according to claim 1, characterized in that: One end of the limiting groove (8) close to the pull rod (10) is an arc-shaped structure, the diameter of the arc-shaped structure is the same as the diameter of the circumscribed circle of the limiting rod (6), the other end of the limiting groove (8) is a straight line, and the width of the other end of the limiting groove (8) is the same as the thickness of the limiting rod (6), and the diameter of the arc-shaped structure is greater than the width of the other end of the limiting groove (8).

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