Ultrasonic flowmeter suitable for hose clamping

Abstract

The invention discloses an ultrasonic flowmeter suitable for hose clamping, relates to the field of intelligent sensors, and adopts an adjustable clamping limiting mechanism to realize the position adjustment of a supporting plate and a clamping plate, so that the device can adapt to pipelines with different diameters to be mounted and fixed, and the adaptability of the device is improved. A self-locking mechanism composed of a ratchet wheel and a pawl is matched, the locking effect of the device can be achieved, therefore, the installation stability of the device is guaranteed, the device is prevented from loosening, the movable plate and one end of a vertical rod are mutually fixed, and the other end of the vertical rod is fixed to a supporting plate. According to the ultrasonic flowmeter suitable for hose clamping, an adjustable clamping limiting mechanism is adopted, position adjustment of a supporting plate and a clamping plate can be achieved, and therefore the device can adapt to pipelines with different diameters to be installed and fixed, the adaptability of the device is improved, and the locking effect of the device can be achieved in cooperation with a self-locking mechanism composed of a ratchet wheel and a pawl; therefore, device installation stability is guaranteed, and device looseness is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent sensors, and specifically relates to an ultrasonic flowmeter suitable for hose clamping. Background Technique

[0002] An ultrasonic flowmeter is a common intelligent sensor. Its main components include an ultrasonic transmitting device and an ultrasonic receiving device. The intelligent monitoring of fluid flow is realized by the fact that the propagation speed of ultrasonic waves in a flowing medium is equal to the vector sum of the average flow velocity of the measured medium and the velocity of sound waves in a stationary medium. Among them, the external clamp ultrasonic flowmeter is widely used because it can be directly installed on the outer side of the pipeline to achieve non-contact detection;

[0003] In the actual use process of the existing external clamp ultrasonic flowmeter, in order to ensure that the acoustic wave transmitter and the acoustic wave receiver can fit with the pipeline to achieve the flow monitoring function, its installation size is fixed and it cannot adapt to pipelines with different diameters for installation and detection, resulting in poor adaptability. Summary of the Invention

[0004] The purpose of the present invention is to provide an ultrasonic flowmeter suitable for hose clamping to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An ultrasonic flowmeter suitable for hose clamping, including a flowmeter main body, a pipeline and a base. The flowmeter main body and the base are locked by bolts. A pipeline is arranged between the flowmeter main body and the base. A detection mechanism is installed in the flowmeter main body, and a limiting mechanism is installed in the base. The limiting mechanism includes a fixing plate fixed in the base. A threaded rod is connected to the lower end face of the fixing plate by a bearing. The threaded rod is connected to the base by a bearing. The threaded rod is connected to a movable plate by a thread. One end of the movable plate is fixedly connected to one end of a vertical rod. The other end of the vertical rod is fixed on a support plate, and the vertical rod is slidably connected to the fixing plate. And the support plate contacts the pipeline to achieve positioning. One end of the movable plate is rotatably connected to one end of a connecting rod. The other end of the connecting rod is rotatably connected to a sliding rod. A clamping plate is fixed to the upper end of the sliding rod. The clamping plate contacts the pipeline to achieve positioning.

[0006] Preferably, a wiring terminal is installed on the rear end face of the flowmeter main body, a display for data display is installed on the upper end face of the flowmeter main body, and control buttons are also installed on the flowmeter main body. Through the above structure, it is convenient for staff to adjust and control the device and read the flow data.

[0007] Preferably, the detection mechanism includes a square rod fixed inside the flowmeter main body. A first movable block is slidably connected to the square rod, and an acoustic wave generator is fixed to the lower end surface of the first movable block. Meanwhile, the acoustic wave generator is electrically connected to the flowmeter main body. The acoustic wave generator is of an arc structure and contacts the pipeline. Through the sliding action between the first movable block and the square rod, the position of the acoustic wave generator can be adjusted to adapt to pipelines with different diameters for monitoring. With the arc structure of the acoustic wave generator, the acoustic wave generator can better fit the pipeline, ensuring the normal progress of flow monitoring.

[0008] Preferably, a second movable block is slidably connected to the square rod, and an acoustic wave receiver is fixed to the lower end surface of the second movable block. Meanwhile, the acoustic wave receiver is electrically connected to the flowmeter main body. The acoustic wave receiver is of an arc structure and contacts the pipeline. Through the sliding action between the second movable block and the square rod, the position of the acoustic wave receiver can be adjusted to adapt to pipelines with different diameters for monitoring. With the arc structure of the acoustic wave receiver, the acoustic wave receiver can better fit the pipeline, ensuring the normal progress of flow monitoring.

[0009] Preferably, inclined panels are symmetrically fixed to the left and right on both the first movable block and the second movable block. The inclined panels are slidably connected to the ejector rod, and the ejector rod is fixed to the upper end of the clamping plate. When the clamping plate drives the ejector rod to move, through the sliding action between the ejector rod and the inclined panels, a basic acting force can be provided for the movement of the first movable block and the second movable block, thus providing a basic guarantee for realizing the position adjustment of the acoustic wave generator and the acoustic wave receiver.

[0010] Preferably, a first spring is fixed between the first movable block and the square rod, and a first spring is also fixed between the second movable block and the square rod. Through the elastic action of the first spring, a basic acting force can be provided for the automatic reset of the first movable block and the second movable block.

[0011] Preferably, the sliding rod is slidably connected to the guiding rod, and the guiding rod is fixed to the fixing plate. The guiding rods are symmetrically distributed front and back with respect to the center line of the fixing plate. When the sliding rod is forced to move, with the sliding guiding action between the sliding rod and the guiding rod, the stability of the sliding rod movement can be ensured.

[0012] Preferably, a positioning mechanism is installed at the lower end of the threaded rod. The positioning mechanism includes a vertical rod, and the vertical rod is slidably connected to the threaded rod. Meanwhile, a knob is fixed to the lower end of the vertical rod. The knob is arranged below the base. Through the sliding action between the vertical rod and the threaded rod, a basic guarantee can be provided for realizing the position adjustment of the vertical rod.

[0013] Preferably, one end of the vertical rod is fixedly connected to one end of the second spring, and the other end of the second spring is fixed inside the threaded rod. Due to the elastic action of the second spring, a basic acting force can be provided for the automatic reset of the vertical rod.

[0014] Preferably, a ratchet is fixed on the vertical rod, and the ratchet cooperates with a pawl. The pawl is rotatably connected to the lower end face of the base, and a torsion spring is installed between the pawl and the base. Through the cooperation of the ratchet and the pawl, the locking function of the threaded rod can be realized, thereby ensuring the stability of the device.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The ultrasonic flowmeter applicable to hose clamping adopts an adjustable clamping and limiting mechanism, which can adjust the positions of the support plate and the clamping plate, so that the device can be installed and fixed on pipes with different diameters, improving the adaptability of the device. Coupled with the self-locking mechanism composed of a ratchet and a pawl, the locking function of the device can be realized, thereby ensuring the stability of the device installation and preventing the device from loosening.

[0017] 2. The ultrasonic flowmeter applicable to hose clamping adopts a linkage adjustment mechanism. When installing on pipes with different diameters, it can synchronously adjust the distance between the acoustic wave generator and the acoustic wave receiver (abbreviated as the acoustic path), so as to ensure that the acoustic path meets the detection requirements (that is, ensure that the acoustic path range is between 10D - 30D, where D is the pipe diameter), avoiding the influence of too long acoustic path distance on the accuracy of detection data, and realizing the intelligent monitoring of fluid flow through the cooperation of the acoustic wave generator and the acoustic wave receiver. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view explosion three-dimensional structure schematic diagram of the overall composition of the device of the present invention;

[0019] Figure 2 It is a front view three-dimensional structure schematic diagram of the overall composition of the device of the present invention;

[0020] Figure 3 It is a front view sectional three-dimensional structure schematic diagram of the overall composition of the device of the present invention;

[0021] Figure 4 It is a three-dimensional structure schematic diagram of the detection mechanism and the limiting mechanism of the present invention;

[0022] Figure 5 It is a front view three-dimensional structure schematic diagram of the limiting mechanism of the present invention;

[0023] Figure 6 It is a bottom view three-dimensional structure schematic diagram of the limiting mechanism of the present invention;

[0024] Figure 7This is a schematic three-dimensional structure diagram of the positioning mechanism of the present invention.

[0025] In the figure: 1. Flowmeter main body; 101. Wiring terminal; 102. Display; 103. Control button; 2. Detection mechanism; 201. Square rod; 202. First movable block; 203. Sound wave generator; 204. Second movable block; 205. Sound wave receiver; 206. Inclined panel; 207. Thumb rod; 208. First spring; 3. Pipeline; 4. Base; 5. Limiting mechanism; 501. Fixed plate; 502. Threaded rod; 503. Movable plate; 504. Vertical rod; 505. Support plate; 506. Connecting rod; 507. Slide rod; 508. Guide rod; 509. Clamping plate; 6. Positioning mechanism; 601. Vertical rod; 602. Knob; 603. Second spring; 604. Ratchet; 605. Pawl. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 - 7 , the present invention provides a technical solution: an ultrasonic flowmeter applicable to hose clamping, including a flowmeter main body 1, a pipeline 3 and a base 4. The flowmeter main body 1 and the base 4 are locked by bolts. A pipeline 3 is arranged between the flowmeter main body 1 and the base 4. A detection mechanism 2 is installed in the flowmeter main body 1, and a limiting mechanism 5 is installed in the base 4. The limiting mechanism 5 includes a fixed plate 501. The fixed plate 501 is fixed in the base 4. The lower end face of the fixed plate 501 is connected to a threaded rod 502 by a bearing. The threaded rod 502 is connected to the base 4 by a bearing. The threaded rod 502 is threadedly connected to a movable plate 503. One end of the movable plate 503 is fixedly connected to one end of a vertical rod 504. The other end of the vertical rod 504 is fixed on a support plate 505. And the vertical rod 504 is slidably connected to the fixed plate 501. And the support plate 505 contacts the pipeline 3 to achieve positioning. One end of the movable plate 503 is rotatably connected to one end of a connecting rod 506. The other end of the connecting rod 506 is rotatably connected to a slide rod 507. A clamping plate 509 is fixed at the upper end of the slide rod 507. The clamping plate 509 contacts the pipeline 3 to achieve positioning.

[0028] The sliding rod 507 is slidably connected to the guiding rod 508, and the guiding rod 508 is fixed on the fixing plate 501, and the guiding rod 508 is symmetrically distributed front and back with respect to the center line of the fixing plate 501; a positioning mechanism 6 is installed at the lower end of the threaded rod 502, and the positioning mechanism 6 includes a vertical rod 601, and the vertical rod 601 is slidably connected to the threaded rod 502. At the same time, a knob 602 is fixed at the lower end of the vertical rod 601, and the knob 602 is arranged below the base 4; one end of the vertical rod 601 is fixedly connected to one end of the second spring 603, and the other end of the second spring 603 is fixed inside the threaded rod 502; a ratchet 604 is fixed on the vertical rod 601, and the ratchet 604 cooperates with the pawl 605, and the pawl 605 is rotatably connected to the lower end face of the base 4. At the same time, a torsion spring is installed between the pawl 605 and the base 4;

[0029] When using the ultrasonic flowmeter applicable to hose clamping, as Figures 1 - 7 shown, first, the flowmeter main body 1 and the base 4 are cooperated and installed on the pipeline 3, and the flowmeter main body 1 and the base 4 are locked by bolts. Then, by rotating the knob 602, the vertical rod 601 and the threaded rod 502 are driven to rotate. With the rotating action of the pawl 605 and the elastic action of the torsion spring, the ratchet 604 and the pawl 605 are in a sliding state, which will not hinder the normal rotation of the vertical rod 601 and the threaded rod 502. When the threaded rod 502 rotates, with the threaded connection between the threaded rod 502 and the movable plate 503, the movable plate 503, the vertical rod 504 and the supporting plate 505 are forced to move upward. With the cooperation between the vertical rod 504 and the fixing plate 501, the stability of the movement of the movable plate 503 and the supporting plate 505 can be ensured until the supporting plate 505, the acoustic wave generator 203 and the acoustic wave receiver 205 all contact the outer wall of the pipeline 3, then the up and down position fixation of the pipeline 3 can be realized. And when the movable plate 503 is forced to move upward, with the transmission action of the connecting rod 506, the sliding rod 507 and the clamping plate 509 are forced to move. With the sliding guiding action between the sliding rod 507 and the guiding rod 508, the stability of the movement of the sliding rod 507 and the clamping plate 509 can be ensured. When the supporting plate 505, the acoustic wave generator 203 and the acoustic wave receiver 205 all contact the outer wall of the pipeline 3, at this time, the two clamping plates 509 synchronously contact the outer wall of the pipeline 3, so as to realize the left and right limiting function of the pipeline 3. According to the above principle, the device can be adapted to pipelines 3 with different diameters for installation and fixation, effectively improving the adaptability of the device. And after the fixation is completed, at this time, under the action of the torsion spring, the pawl 605 and the ratchet 604 are cooperated, so as to avoid the reverse rotation of the vertical rod 601 and the threaded rod 502 resulting in the loosening of the device, effectively ensuring the stability of the device installation. And subsequently, when it is necessary to unlock, only need to pull the knob 602 outwards, so as to drive the vertical rod 601 and the ratchet 604 to move downward, so that the ratchet 604 is separated from the pawl 605 to unlock the locking function. At this time, rotating the knob 602 in the reverse direction can realize the unlocking function of the device, and the operation is convenient and simple;

[0030] A wiring terminal 101 is installed on the rear end face of the flowmeter main body 1, a display 102 for data display is installed on the upper end face of the flowmeter main body 1, and a control button 103 is also installed on the flowmeter main body 1; the detection mechanism 2 includes a square rod 201, the square rod 201 is fixed in the flowmeter main body 1, a first movable block 202 is slidably connected to the square rod 201, a sound wave generator 203 is fixed to the lower end face of the first movable block 202, and at the same time, the sound wave generator 203 is electrically connected to the flowmeter main body 1. The sound wave generator 203 is of an arc structure and contacts the pipeline 3; a second movable block 204 is slidably connected to the square rod 201, a sound wave receiver 205 is fixed to the lower end face of the second movable block 204, and the sound wave receiver 205 is electrically connected to the flowmeter main body 1. At the same time, the sound wave receiver 205 is of an arc structure and contacts the pipeline 3; inclined panels 206 are symmetrically fixed to the left and right on both the first movable block 202 and the second movable block 204, and the inclined panels 206 are slidably connected to the ejector rod 207, and the ejector rod 207 is fixed to the upper end of the clamping plate 509; a first spring 208 is fixed between the first movable block 202 and the square rod 201, and a first spring 208 is fixed between the second movable block 204 and the square rod 201;

[0031] When locking the pipeline 3 with the device, as Figures 1 - 7 shown, when the two clamping plates 509 are forced to move towards each other, they synchronously drive the left and right groups of ejector rods 207 to move towards each other. With the contact sliding action between the ejector rod 207 and the inclined panel 206, the first movable block 202 and the second movable block 204 are forced to move. At this time, the first spring 208 is stressed and contracts. With the sliding guiding action between the first movable block 202, the second movable block 204 and the square rod 201, the stability of the movement of the first movable block 202 and the second movable block 204 can be ensured. Through the movement of the first movable block 202 and the second movable block 204, the distance between the sound wave generator 203 and the sound wave receiver 205 can be adjusted to ensure that the sound path between the sound wave generator 203 and the sound wave receiver 205 meets the detection requirements (that is, ensuring that the sound path range is between 10D - 30D, where D is the diameter of the pipeline 3), ensuring the accuracy of the detection data. Until the sound wave generator 203 and the sound wave receiver 205 contact the pipeline 3, the installation can be completed. After the device is installed, through the action of the sound wave generator 203 and the sound wave receiver 205, the intelligent monitoring of the fluid flow is realized by detecting the propagation speed of ultrasonic waves in the flowing medium. The detection data is displayed on the display 102 for the staff to observe. This is the working principle of the ultrasonic flowmeter applicable to hose clamping.

[0032] It should be noted that in this text, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0033] Specific examples are used in this text to elaborate on the principles and implementation manners of the present invention. The description of the above examples is only used to help understand the method and its core idea of the present invention. The above are only the preferred implementation manners of the present invention. It should be noted that due to the limited nature of literal expression and the objectively infinite specific structures, for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, shall all be regarded as the protection scope of the present invention.

Claims

1. An ultrasonic flowmeter suitable for hose clamping, comprising a flowmeter main body (1), a pipeline (3) and a base (4), wherein the flowmeter main body (1) is locked with the base (4) by bolts, and a pipeline (3) is arranged between the flowmeter main body (1) and the base (4), and is characterized in that: A detection mechanism (2) is installed inside the flowmeter main body (1), and a limiting mechanism (5) is installed inside the base (4). The limiting mechanism (5) includes a fixing plate (501) which is fixed inside the base (4). A threaded rod (502) is connected to the lower end face of the fixing plate (501) by a bearing. The threaded rod (502) is connected to the base (4) by a bearing and is threadedly connected to a movable plate (503). One end of the movable plate (503) is fixedly connected to one end of a vertical rod (504), and the other end of the vertical rod (504) is fixed to a support plate (505). The vertical rod (504) is slidably connected to the fixing plate (501), and the support plate (505) contacts the pipeline (3) to achieve positioning. One end of the movable plate (503) is rotatably connected to one end of a connecting rod (506), and the other end of the connecting rod (506) is rotatably connected to a sliding rod (507). A clamping plate (509) is fixed to the upper end of the sliding rod (507), and the clamping plate (509) contacts the pipeline (3) to achieve positioning.

2. The ultrasonic flowmeter applicable to hose clamping according to claim 1, wherein: A terminal block (101) is installed on the rear end face of the flowmeter main body (1), a display (102) for data display is installed on the upper end face of the flowmeter main body (1), and control buttons (103) are also installed on the flowmeter main body (1).

3. The ultrasonic flowmeter applicable to hose clamping according to claim 1, wherein: The detection mechanism (2) includes a square rod (201) which is fixed inside the flowmeter main body (1). A first movable block (202) is slidably connected to the square rod (201), and an acoustic wave generator (203) is fixed to the lower end face of the first movable block (202). The acoustic wave generator (203) is electrically connected to the flowmeter main body (1). The acoustic wave generator (203) is of an arc-shaped structure and contacts the pipeline (3).

4. An ultrasonic flowmeter applicable to hose clamping according to claim 3, characterized in that: A second movable block (204) is slidably connected to the square rod (201), and an acoustic wave receiver (205) is fixed to the lower end face of the second movable block (204). The acoustic wave receiver (205) is electrically connected to the flowmeter main body (1). The acoustic wave receiver (205) is of an arc-shaped structure and contacts the pipeline (3).

5. An ultrasonic flowmeter applicable to hose clamping according to claim 4, characterized in that: Sloping panels (206) are symmetrically fixed to the left and right on both the first movable block (202) and the second movable block (204). The sloping panels (206) are slidably connected to a push rod (207), and the push rod (207) is fixed to the upper end of the clamping plate (509).

6. An ultrasonic flowmeter applicable to hose clamping according to claim 5, characterized in that: A first spring (208) is fixed between the first movable block (202) and the square rod (201), and a first spring (208) is also fixed between the second movable block (204) and the square rod (201).

7. An ultrasonic flowmeter applicable to hose clamping according to claim 1, characterized in that: The sliding rod (507) is slidably connected to a guiding rod (508). The guiding rod (508) is fixed to the fixing plate (501), and the guiding rods (508) are symmetrically distributed in the front and back with respect to the center line of the fixing plate (501).

8. An ultrasonic flowmeter applicable to hose clamping according to claim 1, characterized in that: A positioning mechanism (6) is installed at the lower end of the threaded rod (502). The positioning mechanism (6) includes a vertical rod (601), and the vertical rod (601) is slidably connected to the threaded rod (502). At the same time, a knob (602) is fixed to the lower end of the vertical rod (601), and the knob (602) is arranged below the base (4).

9. The ultrasonic flowmeter applicable to hose clamping according to claim 8, wherein: One end of the vertical rod (601) is fixedly connected to one end of a second spring (603), and the other end of the second spring (603) is fixed inside the threaded rod (502).

10. An ultrasonic flowmeter applicable to hose clamping according to claim 9, characterized in that: A ratchet wheel (604) is fixed to the vertical rod (601), and the ratchet wheel (604) cooperates with a ratchet pawl (605). The ratchet pawl (605) is rotatably connected to the lower end face of the base (4). At the same time, a torsion spring is installed between the ratchet pawl (605) and the base (4).

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