A flow counter

Abstract

The utility model discloses a flow counter relates to flow counter technical field, including the casing and the connecting plate of setting below it, the top of casing is provided with the detector, the casing is located the groove hole of the one side of detector and is close to the pipe and carries out the detection of the slot that the detection end extends, the auxiliary locking assembly is set up in the casing surface. The utility model has the beneficial effects that: when personnel installs flow counter, first utilizes four horizontal insertion's plug -in rod cooperation jack, can make the casing with connecting plate horizontal butt joint, makes the spacing of each part keep consistent, can also assist the detector better vertical adhesion on the pipe surface simultaneously, utilizes the connecting mode of clamping plate cooperation alveolus, not only simple and quick operation, can also effectively avoid the problem that the traditional operation is complicated, is easy to influence the butt joint effect of connecting plate and casing because of setting up one by one.

Description

Technical Field

[0001] This utility model relates to the field of flow counter technology, and in particular to a flow counter. Background Technology

[0002] Flow counters, especially clamp-on ultrasonic flow counters, are non-invasive devices widely used in industrial pipeline fluid measurement. They measure flow by clamping and fixing the sensor to the outer wall of the pipeline and using the principle of ultrasonic wave propagation. They have advantages such as not damaging the pipeline, no pressure loss, and convenient installation.

[0003] Currently, most clamp-on flow counters on the market adopt the traditional bolt-locking structure. Specifically, threaded holes are set at the four corners of the two split housings. By tightening the four bolts, clamping force is generated to fix the device to the pipeline and keep the ultrasonic transducer inside the housing in close contact with the outer wall of the pipeline.

[0004] However, this traditional bolt-locking method has many inherent defects: uneven locking force can easily lead to a decrease in measurement accuracy. Since the four bolts need to be tightened independently and sequentially by the operator, it is difficult to ensure that the preload on the four points is completely consistent. This uneven locking force can easily cause slight relative displacement or warping deformation of the two housings, which in turn makes it impossible for the ultrasonic transducers fixed on the two housings to maintain precise alignment. Once the axis of the transducer pair deviates, it will directly change the propagation path of the ultrasonic waves, introduce measurement errors, and seriously affect the final measurement accuracy of the equipment. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A flow counter includes a housing and a connecting plate disposed below it. A detector is disposed above the housing. The housing has a slot on one side of the detector for the detector's detection end to extend and approach the pipeline for detection. An auxiliary locking component is disposed on the surface of the housing; The auxiliary locking assembly includes a rod disposed on the connecting plate, and an airbag disposed on the inner wall of the housing and cooperating with the rod to enhance the pre-tightening force between the housing and the connecting plate.

[0007] In a preferred embodiment of the flow counter described in this utility model, the four corners of the housing near the connecting plate are provided with insertion holes, and the insertion rod is inserted into the insertion holes.

[0008] In a preferred embodiment of the flow counter described in this utility model, the diameter of the insertion hole is larger than the diameter of the end face of the insertion rod, and a piston head with the same diameter as the insertion hole is fixedly connected to one end of the insertion rod near the insertion hole, and the piston head is inserted into the insertion hole.

[0009] In a preferred embodiment of the flow counter described in this utility model, a baffle tube is connected to the inner rear of the socket, and the other end of the baffle tube is connected to the airbag.

[0010] In a preferred embodiment of the flow counter described in this utility model, the connecting plate is integrally connected to both sides of the connecting plate, the inner side of the connecting plate is designed with teeth, and both sides of the housing are provided with grooves, the inner side of the connecting plate is adapted to the grooves of the housing.

[0011] In a preferred embodiment of the flow counter described in this utility model, the side of the card plate closest to the connecting plate has a bent design.

[0012] In a preferred embodiment of the flow counter described in this utility model, the overall length of the card plate is greater than the length of the tooth groove.

[0013] In a preferred embodiment of the flow counter described in this utility model, the airbag is designed in a semi-circular shape, and irregular protrusions are provided on the side of the airbag near the pipe.

[0014] In a preferred embodiment of the flow counter described in this utility model, a one-way valve is provided on the surface of the airbag. The one-way valve is used to discharge excess gas when the pipe diameter is too small and the air pressure inside the airbag is close to a preset value.

[0015] In a preferred embodiment of the flow counter described in this utility model, the side of the housing opposite to the connecting plate is set in a semi-circular shape, and the two semi-circular parts can be used to securely wrap the pipe when the connecting plate and the housing overlap.

[0016] The beneficial effects of this utility model are as follows: When personnel install the flow counter, the four horizontally inserted rods and the insertion holes enable the housing and the connecting plate to be horizontally aligned, ensuring that the spacing of each part is consistent. This also helps the detector to better fit vertically onto the pipe surface. The connection method using the clamping plate and the groove not only makes the operation simple and quick, but also effectively avoids the problems of the traditional bolt operation being cumbersome and easily affecting the connection effect between the connecting plate and the housing due to individual placement. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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. Among them: Figure 1 This is a diagram showing the overall structure of the flow counter.

[0018] Figure 2 This is a breakdown diagram of the flow counter.

[0019] Figure 3 This is a horizontal split structure diagram of the flow counter.

[0020] Figure 4 This is a partial structural cross-sectional view of the flow counter's housing.

[0021] The following are the labels in the diagram: 1. Housing; 2. Connecting plate; 3. Detector; 4. Auxiliary locking assembly; 401. Clamping plate; 402. Gear; 403. Insert rod; 404. Insertion hole; 405. Airbag; 406. Baffle tube; 407. One-way valve; 408. Protrusion; 409. Piston head. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example 1: Reference Figures 1-4 This is the first embodiment of the present utility model. This embodiment provides a flow counter, including a housing 1 and a connecting plate 2 disposed below it. A detector 3 is disposed above the housing 1. The housing 1 has a slot on one side of the detector 3 for the detector end of the detector 3 to extend and approach the pipeline for detection. When calculating the flow rate of a pipeline using a flow counter consisting of a housing 1, a connecting plate 2, and a detector 3, the transducers on both sides of the device alternately emit and receive ultrasonic signals. The ultrasonic waves travel faster in the fluid with the flow direction and slower against the flow direction. The processor calculates the instantaneous velocity of the fluid by accurately measuring the time difference between the forward and reverse propagation of the ultrasonic waves. Combined with parameters such as the cross-sectional area of ​​the pipeline, the flow rate of the fluid is finally calculated. Auxiliary locking component 4 is disposed on the surface of housing 1; The auxiliary locking component 4 includes a rod 403 disposed on the connecting plate 2, and an airbag 405 disposed on the inner wall of the housing 1 and cooperating with the rod 403 to enhance the pre-tightening force between the housing 1 and the connecting plate 2.

[0026] Example 2: Reference Figures 2-4 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0027] Specifically, the four corners of the housing 1 near the connecting plate 2 are provided with insertion holes 404, and the insertion rod 403 is inserted into the insertion holes 404.

[0028] When personnel install the flow counter, first place the connecting plate 2 against the surface of the pipe at the installation position, and then place the housing 1 close to the connecting plate 2, so that the insertion rod 403 on the surface of the housing 1 is inserted into the insertion hole 404. After the insertion hole 404 is entered, the displacement path of the housing 1 will be limited, so that it can only maintain horizontal displacement. This ensures that the distance between each part of the connection area between the connecting plate 2 and the housing 1 is consistent, and at the same time, it can also help the detector 3 to better fit vertically against the pipe surface.

[0029] Specifically, the diameter of the insertion hole 404 is larger than the diameter of the end face of the insertion rod 403. A piston head 409 with the same diameter as the insertion hole 404 is fixedly connected to one end of the insertion rod 403 near the insertion hole 404. The piston head 409 is inserted into the insertion hole 404.

[0030] When the insertion rod 403 is inserted into the insertion hole 404, the surface of the piston head 409 will be in contact with the inner wall of the insertion hole 404. At this time, the gas in the insertion hole 404 will be squeezed into the baffle tube 406 by the piston head 409. The gas in the baffle tube 406 will then enter the air bladder 405, causing the air bladder 405 to expand and fit against the pipe surface. This will also increase the pre-tightening force between the housing 1 and the connecting plate 2. Specifically, a baffle tube 406 is connected to the inner rear of the insertion port 404, and the other end of the baffle tube 406 is connected to the airbag 405.

[0031] Specifically, the airbag 405 has a semi-circular design, and irregular protrusions 408 are provided on the side of the airbag 405 near the pipe.

[0032] The above design can increase the contact area between the airbag 405 and the pipe surface, and also increase the friction with the pipe surface, thereby further improving the stability of the overall device installation. Specifically, a one-way valve 407 is provided on the surface of the airbag 405. The one-way valve 407 is used to discharge excess gas when the pipe diameter is too small and the air pressure inside the airbag 405 is close to the preset value.

[0033] Since the pipes that need to be metered are of different types, if the pipe diameter is small, the distance between the housing 1 and the connecting plate 2 will be shortened, and the path of the insertion rod 403 into the insertion hole 404 will be extended. Similarly, the amount of gas injected into the airbag 405 will also increase. When the air pressure in the airbag 405 is close to the preset value, the one-way valve 407 will open and discharge the gas that is higher than the preset value, so that the air pressure in the airbag 405 remains constant. Example 3: Reference Figures 2-4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0034] Specifically, the two sides of the connecting plate 2 are integrally connected with a clamping plate 401. The inner side of the clamping plate 401 is designed with teeth. Both sides of the housing 1 are provided with grooves 402. The inner side of the clamping plate 401 is adapted to the grooves 402 of the housing 1.

[0035] To avoid the problems of cumbersome operation using bolts and the potential impact on the docking effect between the connecting plate 2 and the housing 1 due to individual placement, when the housing 1 moves closer to the connecting plate 2, the teeth on the inner side of the clamping plate 401 will contact the groove 402 on the side of the housing 1. Since the clamping plate 401 is elastically designed and the teeth of the clamping plate 401 correspond to the inclined surface of the groove 402, the clamping plate 401 can smoothly connect with the groove 402 during insertion. When the housing 1 contacts the pipe, the clamping plate 401 will stop moving in the groove 402 and form a lock. It should be noted that if the teeth of the clamping plate 401 and the tooth socket 402 are not aligned after the inner side of the housing 1 comes into contact with the pipe, the airbag 405 is inflated by inserting the rod 403 into the insertion hole 404. The inflation of the airbag 405 can drive the connecting plate 2 and the housing 1 to move away from each other, thereby compensating for the space between the teeth and the previous tooth socket 402 and forming a stable lock. Specifically, the side of the card plate 401 closest to the connecting plate 2 has a bent design.

[0036] With the above design, when the card plate 401 is mated with the toothed groove 402 on the side of the housing 1, the bent end can provide angle compensation for the card plate 401. Specifically, the overall length of the card plate 401 is greater than the set length of the tooth socket 402.

[0037] With the above design, when the personnel need to disassemble it later, they only need to push the part of the card plate 401 extending to the back of the tooth 402 to both sides. At this time, the angle of the two card plates 401 will be widened, so that the teeth inside them will disengage from the tooth 402 and release the locking. Specifically, the shell 1 and the connecting plate 2 are both set in a semi-circular shape on the opposite side. When the connecting plate 2 and the shell 1 overlap, the two semi-circular parts can be used to securely wrap the pipe.

[0038] When installing the flow counter, the four horizontally inserted rods 403, along with the insertion holes 404, allow the housing 1 and the connecting plate 2 to be horizontally aligned, ensuring consistent spacing between all parts. This also helps the detector 3 to better fit vertically onto the pipe surface. The connection method using the clamping plate 401 and the groove 402 is not only simple and quick to operate, but also effectively avoids the problems of cumbersome traditional bolt operation and the tendency to affect the alignment between the connecting plate 2 and the housing 1 due to individual installation.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A flow counter, comprising a housing (1) and a connecting plate (2) disposed below it, characterized in that: A detector (3) is provided above the housing (1). The housing (1) has a slot on one side of the detector (3) for the detector (3) to extend and approach the pipe for detection. An auxiliary locking component (4) is disposed on the surface of the housing (1); The auxiliary locking component (4) includes a rod (403) disposed on the connecting plate (2) and an airbag (405) disposed on the inner wall of the housing (1) and cooperating with the rod (403) to enhance the pre-tightening force between the housing (1) and the connecting plate (2).

2. The flow counter as described in claim 1, characterized in that: The housing (1) has four holes (404) at the four corners near the connecting plate (2), and the insertion rod (403) is inserted into the holes (404).

3. The flow counter as described in claim 2, characterized in that: The diameter of the insertion hole (404) is larger than the diameter of the end face of the insertion rod (403). A piston head (409) with the same diameter as the insertion hole (404) is fixedly connected to one end of the insertion rod (403) near the insertion hole (404). The piston head (409) is inserted into the insertion hole (404).

4. The flow counter as described in claim 2, characterized in that: The inner rear of the insertion hole (404) is connected to a baffle tube (406), and the other end of the baffle tube (406) is connected to the airbag (405).

5. The flow counter as described in claim 1, characterized in that: The connecting plate (2) is integrally connected to the two sides of the clamping plate (401). The inner side of the clamping plate (401) is designed with teeth. The two sides of the housing (1) are provided with tooth grooves (402). The inner side of the clamping plate (401) is adapted to the tooth grooves (402) of the housing (1).

6. The flow counter as described in claim 5, characterized in that: The side of the card plate (401) near the connecting plate (2) has a bent design.

7. The flow counter as described in claim 5, characterized in that: The overall length of the card plate (401) is greater than the length of the tooth socket (402).

8. The flow counter as described in claim 1, characterized in that: The airbag (405) has a semi-circular design, and irregular protrusions (408) are provided on the side of the airbag (405) near the pipe.

9. The flow counter as described in claim 1, characterized in that: The surface of the airbag (405) is provided with a one-way valve (407), which is used to discharge excess gas when the pipe diameter is too small and the air pressure inside the airbag (405) is close to a preset value.

10. The flow counter as described in claim 1, characterized in that: The shell (1) and the connecting plate (2) are both set in a semi-arc shape on the opposite side. When the connecting plate (2) and the shell (1) overlap, the two semi-arc parts can be used to securely wrap the pipe.

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