Clamp type flowmeter
By designing an adjustable clamp arm structure and distance adjustment components, the problem that existing clamp flow meters cannot adapt to different pipe diameters has been solved, achieving tight fit and measurement adaptability for pipe walls of different sizes.
Patent Information
- Application Number
- CN202520474306.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Existing clamp-type flow meters cannot fit tightly against pipe walls of different radii, resulting in them only being able to measure pipes of fixed sizes and being unable to adapt to pipes of different sizes.
An adjustable clamp arm structure was designed, including a limiting arc groove and a protruding inner cavity. Combined with a distance adjustment component and an ultrasonic flow meter module, the module can slide and adjust within the inner cavity to adapt to different pipe wall sizes.
This technology enables clamp-type flow meters to fit tightly against pipe walls of different sizes, expanding the range of applicable measurements.
Smart Images
Figure CN223954957U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of clamp-on flowmeter, specifically relates to a clamp-on flowmeter. BACKGROUND
[0002] The clamp-on ultrasonic flowmeter mainly measures the flow based on the "time difference method". The core of this principle is to use the change of ultrasonic propagation speed due to the influence of fluid flow rate when ultrasonic propagates in the fluid, thereby generating a time difference. Specifically, the clamp-on ultrasonic flowmeter emits and receives ultrasonic signals through the probe installed outside the pipeline, calculates the flow rate of the fluid by using the time difference of the signals propagating in the fluid, and then obtains the flow value.
[0003] In the prior art, such as a clamp-on flowmeter of Xiamen Jingchuan Automation Technology Co., Ltd. (as shown in Figure 1 ), it comprises two clamp arms and a flowmeter main module arranged on one of the clamp arms, the two clamp arms are connected by bolts, and the inner side of the two clamp arms is provided with a circular arc-shaped limiting groove. During installation, the two clamp arms are clamped on the pipe wall through the two limiting grooves, and then the bolts are locked for fixation.
[0004] However, in the above clamp-on flowmeter, since the radius of the two limiting grooves is fixed, when clamped on the pipe wall with a radius larger than that of the limiting groove, the limiting groove cannot closely fit the pipe wall, thereby causing the clamp-on flowmeter to be unable to be attached to the pipe wall for measurement, and thus the above clamp-on flowmeter can only be clamped on the pipe wall with a fixed size for measurement. UTILITY MODEL CONTENTS
[0005] In order to solve the above problems in the prior art, the utility model provides a clamp-on flowmeter.
[0006] In order to achieve the above technical effects, the utility model adopts the following scheme:
[0007] A clamp-on flowmeter, comprising a clamp arm one, a clamp arm two and an ultrasonic flowmeter module, the clamp arm one and the clamp arm two are arranged oppositely and connected by an adjusting bolt one, and the ultrasonic flowmeter module is arranged on the clamp arm two.
[0008] The inner side of the clamp arm one is provided with a limiting circular arc groove one, the inner side of the clamp arm two is provided with a limiting circular arc groove two, and the outer side of the clamp arm two is provided with a protruding part.
[0009] An inner cavity is arranged on the clamp arm two and extends from the center of the limiting circular arc groove two to the protruding part, the cross section of the inner cavity is rectangular, an opening is arranged on the outer end of the protruding part and communicates with the inner cavity, and the size of the opening is smaller than the cross section size of the inner cavity.
[0010] The ultrasonic flow meter module has a "T" shaped cross section, including a large module one and a small module two. The module one is matched and disposed in the inner cavity and slides toward the clamp arm one. The module two is connected to the module one and extends out from the opening. The outer end of the module two is provided with a display screen. The module one is connected to a distance adjustment component.
[0011] In a preferred embodiment, the distance adjustment component includes an adjustment screw hole formed on module one, the length direction of the adjustment screw hole being parallel to the sliding direction of module one, and a rotating adjustment bolt two being installed on the protrusion, the screw of the adjustment bolt two being inserted into the adjustment screw hole, and the screw head of the adjustment bolt two being located outside the protrusion.
[0012] In a preferred embodiment, the second adjusting bolt is mounted on the protrusion and rotates via a rotating component. The rotating component includes a rotating ring, and the protrusion has a through hole. The rotating ring is fitted within the through hole and rotates. A first limiting disc is fixedly attached to the outer end face of the protrusion at the outer end of the rotating ring. The second limiting disc is attached to the inner wall of the protrusion via a screw. The screw of the second adjusting bolt passes through the rotating ring, and a connecting disc is fixedly attached to the screw of the second adjusting bolt. The connecting disc is connected to the first limiting disc via a screw.
[0013] In a preferred embodiment, the inner cavity has a plurality of guide edges protruding from its sidewall and extending along the sliding direction of module one, and the sidewall of module one has guide grooves adapted to the guide edges.
[0014] In the preferred embodiment, a rubber layer is adhered to the inner surface of the first limiting arc groove and the second limiting arc groove.
[0015] In a preferred embodiment, the clamp arm has two mounting holes, and the clamp arm has a connecting screw hole corresponding to the mounting hole. The adjusting bolt passes through the mounting hole and is screwed into the connecting screw hole.
[0016] Compared with existing technologies, the beneficial effects are:
[0017] This utility model has a simple structure and is easy to use. Since module one can slide in the direction of clamp arm one in the inner cavity through the distance adjustment component, when clamp arm one and clamp arm two clamp pipe walls of different sizes, module one can be adjusted to fit tightly against the pipe wall. Thus, the clamp flow meter of this utility model can be used to measure pipe walls of different sizes. Attached Figure Description
[0018] Figure 1 It is a clamp-type flow meter in the existing technology.
[0019] Figure 2 This is a schematic diagram of the structure of this utility model.
[0020] Figure 3 is a cross-sectional schematic view of the utility model.
[0021] Figure 4 is Figure 3 A part of the enlarged structure schematic view.
[0022] Figure 5 is a part of the structure schematic view of the utility model.
[0023] Reference signs: 1, clamp arm one; 2, clamp arm two; 3, limit arc groove one; 4, limit arc groove two; 5, adjusting bolt one; 6, rubber layer; 7, convex part; 8, inner cavity; 9, module one; 10, module two; 11, display screen; 12, adjusting bolt two; 13, rotating ring; 14, limit disc one; 15, limit disc two; 16, connecting disc; 17, adjusting screw hole; 18, guide edge. Specific implementation
[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0025] A clamp type flowmeter, including clamp arm one 1, clamp arm two 2 and ultrasonic flowmeter module, clamp arm one 1 with clamp arm two 2 are oppositely arranged and are connected by adjusting bolt one 5, the ultrasonic flowmeter module is arranged on clamp arm two 2;Clamp arm one 1 and clamp arm two 2 are used for clamping pipe wall, and the ultrasonic flowmeter module is prior art, including shell, the electronic system for realizing measurement function is arranged in the shell, the side of ultrasonic flowmeter module towards clamp arm one 1 is provided with ultrasonic wave transmitter and ultrasonic wave receiver for being attached to the pipe wall, and the outer side of ultrasonic flowmeter module is provided with display screen 11;
[0026] The inner side of clamp arm one 1 is provided with limit arc groove one 3, the inner side of clamp arm two 2 is provided with limit arc groove two 4, and the outer side of clamp arm two 2 is provided with convex part 7;
[0027] The inner cavity 8 is provided with the opening in communication with the inner cavity 8, and the size of the opening is less than the cross-sectional size of the inner cavity 8;
[0028] The cross section of the ultrasonic flow meter module is "T" shape, comprising a large size module one 9 and a small size module two 10, the module one 9 is matched in the inner cavity 8 and slides towards the direction of the clamp arm one 1, the module two 10 is connected on the module one 9 and extends from the opening, the outer end of the module two 10 is provided with a display screen 11, and the module one 9 is connected with a distance adjusting assembly.
[0029] Since the module one 9 can slide in the inner cavity 8 towards the direction of the clamp arm one 1 through the distance adjusting assembly, when the clamp arm one 1 and the clamp arm two 2 clamp the pipe wall of different sizes, the module one 9 can be closely attached to the pipe wall, so that the clamp type flow meter can be used for measuring on the pipe wall of different sizes.
[0030] Preferably, the distance adjusting assembly comprises an adjusting screw hole 17 opened on the module one 9, the length direction of the adjusting screw hole 17 is parallel to the sliding direction of the module one 9, a rotating adjusting screw two 12 is installed on the protruding part 7, the screw rod of the adjusting screw two 12 is inserted into the adjusting screw hole 17, and the screw head of the adjusting screw two 12 is located outside the protruding part 7.
[0031] After the clamp arm one 1 and the clamp arm two 2 clamp the pipe wall, the adjusting screw two 12 is rotated through a tool, so that the module one 9 moves with the module two 10, and the inner side of the module one 9 is attached to the tank for measurement.
[0032] Preferably, the adjusting screw two 12 is installed on the protruding part 7 to rotate through a rotating part, the rotating part comprises a rotating ring 13, a through hole is opened on the protruding part 7, the rotating ring 13 is matched and arranged to rotate in the through hole, a limiting disc one 14 is fixedly arranged on the outer end of the rotating ring 13 and attached to the outer end face of the protruding part 7, a limiting disc two 15 is connected to the inner end of the rotating ring 13 through a screw one and attached to the inner wall of the protruding part 7, the screw rod of the adjusting screw two 12 penetrates through the rotating ring 13, a connecting disc 16 is fixedly arranged on the screw rod of the adjusting screw two 12, and the connecting disc 16 is connected with the limiting disc one 14 through a screw two.
[0033] The rotating ring 13 is installed in the through hole to rotate through the limiting of the limiting disc one 14 and the limiting disc two 15, the adjusting screw two 12 penetrates through the rotating ring 13, and the adjusting screw two 12 is fixedly connected with the limiting disc one 14 through the connecting disc 16, so that the adjusting screw is installed in the through hole to rotate.
[0034] Preferably, a plurality of guide edges 18 extending along the sliding direction of the module one 9 are protrudedly arranged on the side wall of the inner cavity 8, and a guide groove matched with the guide edges 18 is opened on the side wall of the module one 9.
[0035] The sliding direction of the module 9 is defined by the cooperation of the guide along 18 and the guide groove.
[0036] Preferably, a rubber layer 6 is pasted in the limiting circular arc groove one 3 and the limiting circular arc groove two 4.
[0037] When the size of the pipe wall is large, the limiting circular arc groove one 3 and the limiting circular arc groove two 4 are in point contact with the pipe wall, and the contact area is reduced, so as to avoid the rotation of the clamp arm one 1 and the clamp arm two 2 after being clamped on the pipe wall, thereby increasing the friction force by setting the rubber pad.
[0038] Preferably, a mounting hole is formed in the clamp arm two, a connecting screw hole corresponding to the mounting hole is formed in the clamp arm one 1, and the adjusting bolt one 5 is screwed through the mounting hole and the connecting screw hole.
[0039] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0040] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0041] Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
Claims
1. A clamp-type flow meter, characterized in that, It includes clamp arm one (1), clamp arm two (2) and ultrasonic flow meter module. The clamp arm one (1) and clamp arm two (2) are arranged opposite to each other and connected by adjusting bolt one (5). The ultrasonic flow meter module is mounted on clamp arm two (2). The inner side of the clamp arm 1 (1) is provided with a limiting arc groove 1 (3), the inner side of the clamp arm 2 (2) is provided with a limiting arc groove 2 (4), and the outer side of the clamp arm 2 (2) is provided with a protrusion (7). The clamp arm 2 (2) has an inner cavity (8) extending from the center of the limiting arc groove 2 (4) toward the protrusion (7). The cross-section of the inner cavity (8) is rectangular. The outer end of the protrusion (7) has an opening that communicates with the inner cavity (8). The size of the opening is smaller than the cross-sectional size of the inner cavity (8). The ultrasonic flow meter module has a "T" shaped cross section, including a large module one (9) and a small module two (10). The module one (9) is matched and disposed in the inner cavity (8) and slides towards the clamp arm one (1). The module two (10) is connected to the module one (9) and extends out from the opening. The outer end of the module two (10) is provided with a display screen (11). The module one (9) is connected to a distance adjustment component.
2. The clamp-type flow meter as described in claim 1, characterized in that, The distance adjustment assembly includes an adjustment screw hole (17) opened on module one (9). The length direction of the adjustment screw hole (17) is parallel to the sliding direction of module one (9). A rotating adjustment bolt two (12) is installed on the protrusion (7). The screw of the adjustment bolt two (12) is inserted into the adjustment screw hole (17), and the screw head of the adjustment bolt two (12) is located outside the protrusion (7).
3. The clamp-type flow meter as described in claim 2, characterized in that, The second adjusting bolt (12) is mounted on the protrusion (7) and rotates via a rotating component. The rotating component includes a rotating ring (13). The protrusion (7) has a through hole. The rotating ring (13) is matched and rotates within the through hole. The outer end of the rotating ring (13) is fixedly provided with a limiting disc (14) attached to the outer end face of the protrusion (7). The inner end of the rotating ring (13) is connected to a limiting disc (15) attached to the inner wall of the protrusion (7) via a screw. The screw of the second adjusting bolt (12) passes through the rotating ring (13). A connecting disc (16) is fixedly provided on the screw of the second adjusting bolt (12). The connecting disc (16) is connected to the limiting disc (14) via a screw.
4. The clamp-type flow meter as described in claim 1, characterized in that, The inner cavity (8) has several guide edges (18) protruding from its side wall and extending along the sliding direction of module one (9). The side wall of module one (9) has guide grooves that are adapted to the guide edges (18).
5. The clamp-type flow meter as described in claim 1, characterized in that, A rubber layer (6) is pasted inside the limiting arc groove one (3) and the limiting arc groove two (4).
6. The clamp-type flow meter as described in claim 1, characterized in that, The clamp arm has two mounting holes, and the clamp arm (1) has a connecting screw hole corresponding to the mounting hole. The adjusting bolt (5) passes through the mounting hole and is screwed into the connecting screw hole.