High-sensitivity anti-backflow ultrasonic water meter
By setting up a backflow preventing component in the ultrasonic water meter, the anti-rewind is achieved by using the impact force of the liquid flow, which solves the problem of the sensitivity of the existing ultrasonic water meter decreasing when the liquid is backflowed, and improves the accuracy and practicality of flow measurement.
Patent Information
- Application Number
- CN202421921900.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-03-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing ultrasonic water meters cannot effectively prevent repeated detection of liquids when the liquid is backflowed, resulting in a decrease in sensitivity and a decrease in flow measurement accuracy.
A high-sensitivity anti-return ultrasonic water meter is designed. By installing anti-return components in the circulation groove of the ultrasonic water meter body, including a fixing sleeve, a fixing plate, a movable rod, a fixing ring, a reverse-return plate and a spring, the anti-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return
It effectively prevents liquid backflow, improves the sensitivity of ultrasonic water meter and the accuracy of flow measurement, has a simple structure, reasonable design, and strong practicality.
Smart Images
Figure CN222652306U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of ultrasonic water meters, in particular to a high-sensitivity backflow-proof ultrasonic water meter. Background Art
[0002] Ultrasonic water meter is a new type of water meter that detects the time difference caused by the change in speed when the ultrasonic sound beam propagates downstream and upstream in water, analyzes and processes the water flow rate, and further calculates the water flow rate. It is characterized by low starting flow rate, wide range ratio, high measurement accuracy and stable operation.
[0003] However, in the existing technology, most ultrasonic water meters are unable to prevent the backflow of liquid during use, so when liquid backflows inside the ultrasonic water meter, it is easy to cause the ultrasonic sound beam to repeatedly detect the liquid, which not only affects the sensitivity of the ultrasonic water meter, but also reduces the accuracy of the liquid flow rate measurement. Utility Model Content
[0004] The utility model aims to provide a high-sensitivity backflow prevention ultrasonic water meter to solve the problems raised in the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-sensitivity backflow-proof ultrasonic water meter, comprising an ultrasonic water meter body and an backflow-proof component; the backflow-proof component is arranged in the flow groove of the ultrasonic water meter body; wherein the backflow-proof component comprises a fixed sleeve, a fixed plate, a movable rod, a fixed ring, an backflow-proof plate and a spring; the fixed sleeve is arranged in the flow groove of the ultrasonic water meter body; a plurality of the fixed plates are fixedly arranged on the circumferential surface of the fixed sleeve in an annular array, and the fixed plate is fixedly connected to the inner wall of the flow groove of the ultrasonic water meter body at one end away from the fixed sleeve; the movable rod is passed through the fixed sleeve; the fixed ring is fixedly arranged on the inner wall of the flow groove of the ultrasonic water meter body; the backflow-proof plate is fixedly connected to the end of the movable rod; the spring sleeve is arranged on the movable rod, and the two ends of the spring are respectively fixedly connected to the fixed sleeve and the backflow-proof plate.
[0006] As a preferred embodiment, the cross section of the fixing ring is a right-angled trapezoidal structure, and the size of the fixing ring close to the fixing sleeve is smaller than the size of the fixing ring away from the fixing sleeve.
[0007] As a preferred embodiment, the backflow prevention plate is a truncated cone structure, and the dimension of the backflow prevention plate close to the fixed sleeve is larger than the dimension of the backflow prevention plate away from the fixed sleeve.
[0008] As a preferred embodiment, the circumferential surface of the backflow prevention plate is in close contact with the inclined surface of the fixing ring.
[0009] As a preferred embodiment, it also includes a guide ring; the guide ring is fixedly arranged on the side of the fixing ring away from the fixing sleeve.
[0010] As a preferred embodiment, the guide ring includes a fixing portion and a guide portion; the fixing portion is fixed on the fixing ring, the guide portion is inclined, and the opening direction of the guide portion is arranged away from the fixing ring.
[0011] Compared with the prior art, the technical effects and advantages of the utility model are as follows:
[0012] The high-sensitivity ultrasonic water meter with anti-backflow function is provided with an anti-backflow component. When liquid passes through the flow groove of the ultrasonic water meter body, the flow impact force of the liquid will squeeze the anti-backflow plate, so that the anti-backflow plate moves in the flow groove of the ultrasonic water meter body, so that the movable rod slides on the fixed sleeve, so that the spring is forced to shrink, so that the gap between the anti-backflow plate and the fixed ring gradually increases, so that the liquid can flow through the gap between the anti-backflow plate and the inner wall of the flow groove of the ultrasonic water meter body until the spring shrinks to the maximum limit. At this time, the anti-backflow plate and the movable rod no longer move. When the anti-backflow plate loses the flow impact force of the liquid, at this time, the spring is no longer stressed and begins to stretch, so that the movable rod slides on the fixed sleeve in the opposite direction, so that the anti-backflow plate moves in the opposite direction in the flow groove of the ultrasonic water meter body until the anti-backflow plate contacts the fixed ring, and at this time, the spring returns to its original shape. Compared with the prior art, the utility model has a simple structure, a reasonable and ingenious design, can realize the circulation and anti-backflow of liquid through the flow impact force of the liquid, has strong practicality and high sensitivity.
[0013] The high-sensitivity backflow prevention ultrasonic water meter is provided with a fixing part and a guide part, and the guide part is set to an inclined shape, so that when the liquid flows in the flow groove of the ultrasonic water meter body, the liquid will pass through the guide part and gather on the backflow prevention plate, which can not only increase the flow impact force of the liquid on the backflow prevention plate, but also prevent the liquid from remaining in the contact between the guide ring and the flow groove of the ultrasonic water meter body. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a cross-sectional view of the overall structure of the utility model;
[0017] Figure 3 It is a partial structural split cross-sectional view of the utility model;
[0018] Figure 4 For the utility model Figure 2 Enlarged schematic diagram at point A in the middle.
[0019] Description of reference numerals:
[0020] In the figure:
[0021] 1. Ultrasonic water meter body; 2. Anti-backflow component; 3. Guide ring;
[0022] 201, fixed sleeve; 202, fixed plate; 203, movable rod; 204, fixed ring; 205, backflow prevention plate; 206, spring;
[0023] 301. fixing portion; 302. flow guide portion. DETAILED DESCRIPTION
[0024] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.
[0025] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.
[0026] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.
[0027] See also Figures 1 to 4As shown, this embodiment includes an ultrasonic water meter body 1 and an anti-backflow component 2; the anti-backflow component 2 is arranged in the flow groove of the ultrasonic water meter body 1; wherein, the anti-backflow component 2 includes a fixed sleeve 201, a fixed plate 202, a movable rod 203, a fixed ring 204, an anti-backflow plate 205 and a spring 206; the fixed sleeve 201 is arranged in the flow groove of the ultrasonic water meter body 1; five fixed plates 202 are fixedly arranged on the circumferential surface of the fixed sleeve 201 in an annular array, and the end of the fixed plate 202 away from the fixed sleeve 201 is fixedly connected to the inner wall of the flow groove of the ultrasonic water meter body 1; the movable rod 203 is penetrated on the fixed sleeve 201; the fixed ring 204 is fixedly arranged on the inner wall of the flow groove of the ultrasonic water meter body 1; the anti-backflow plate 205 is fixedly connected to the end of the movable rod 203; the spring 206 is sleeved on the movable rod 203, and the two ends of the spring 206 are respectively fixedly connected to the fixed sleeve 201 and the anti-backflow plate 205.
[0028] The utility model sets the backflow prevention component 2. When the liquid passes through the flow groove of the ultrasonic water meter body 1, the flow impact force of the liquid will squeeze the backflow prevention plate 205, so that the backflow prevention plate 205 moves in the flow groove of the ultrasonic water meter body 1, so that the movable rod 203 slides on the fixed sleeve 201, and the spring 206 is forced to shrink, so that the gap between the backflow prevention plate 205 and the fixed ring 204 is gradually increased, so that the liquid can flow out from the gap between the backflow prevention plate 205 and the inner wall of the flow groove of the ultrasonic water meter body 1. The spring 206 shrinks to the maximum limit, at which time, the backflow prevention plate 205 and the movable rod 203 no longer move. When the backflow prevention plate 205 loses the flow impact force of the liquid, the spring 206 is no longer stressed and begins to stretch, so that the movable rod 203 slides in the opposite direction on the fixed sleeve 201, so that the backflow prevention plate 205 moves in the opposite direction in the flow groove of the ultrasonic water meter body 1, until the backflow prevention plate 205 contacts the fixed ring 204, at which time, the spring 206 returns to its original shape. Compared with the prior art, the utility model has a simple structure, a reasonable and ingenious design, can realize the circulation and backflow prevention of the liquid through the flow impact force of the liquid, has strong practicality and high sensitivity.
[0029] As a preferred embodiment, the cross section of the fixing ring 204 is a right-angled trapezoidal structure, and the size of the fixing ring 204 close to the fixing sleeve 201 is smaller than the size of the fixing ring 204 away from the fixing sleeve 201. This facilitates the existence of a gap between the anti-backflow plate 205 and the inner wall of the flow slot of the ultrasonic water meter body 1, so that the liquid can flow through the gap.
[0030] As a preferred embodiment, the backflow prevention plate 205 is a truncated cone structure, and the size of the backflow prevention plate 205 close to the fixed sleeve 201 is larger than the size of the backflow prevention plate 205 away from the fixed sleeve 201, and the circumferential surface of the backflow prevention plate 205 is in close contact with the inclined surface of the fixed ring 204. This is convenient for extending the contact area between the backflow prevention plate 205 and the fixed ring 204, and improving the sealing between the backflow prevention plate 205 and the fixed ring 204.
[0031] As a preferred embodiment, it also includes a guide ring 3; the guide ring 3 is fixed on the side of the fixed ring 204 away from the fixed sleeve 201; wherein the guide ring 3 includes a fixed portion 301 and a guide portion 302; the fixed portion 301 is fixed on the fixed ring 204, the guide portion 302 is inclined, and the opening direction of the guide portion 302 is arranged away from the direction of the fixed ring 204; when the circumferential surface of the anti-backflow plate 205 contacts the inclined surface of the fixed ring 204, the movable rod 203 is away from the side of the anti-backflow plate 205 and is on the right side of the fixed sleeve 201.
[0032] The utility model sets a fixing portion 301 and a guide portion 302, and sets the guide portion 302 in an inclined shape, so that when liquid flows in the flow groove of the ultrasonic water meter body 1, the liquid will pass through the guide portion 302 and gather on the anti-backflow plate 205, which can not only increase the flow impact force of the liquid on the anti-backflow plate 205, but also prevent the liquid from remaining at the contact point between the guide ring 3 and the flow groove of the ultrasonic water meter body 1.
[0033] The ultrasonic water meter body 1 is a conventional instrument. Its working principle, size and model are irrelevant to the problem solved by this application, so no further description will be given. The control method of the present invention is controlled by a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.
[0034] How it works
[0035] In the high-sensitivity backflow-proof ultrasonic water meter, when liquid passes through the flow groove of the ultrasonic water meter body 1, the flow impact force of the liquid will squeeze the backflow-proof plate 205, causing the backflow-proof plate 205 to move in the flow groove of the ultrasonic water meter body 1, causing the movable rod 203 to slide on the fixed sleeve 201, causing the spring 206 to contract under force, so that the gap between the backflow-proof plate 205 and the fixed ring 204 gradually increases, so that the liquid can flow through the gap between the backflow-proof plate 205 and the inner wall of the flow groove of the ultrasonic water meter body 1 until the spring 206 contracts to the maximum limit. At this time, the backflow-proof plate 205 and the movable rod 203 no longer move. When the backflow-proof plate 205 loses liquid When the flow impact force is applied, the spring 206 is no longer stressed and begins to stretch, causing the movable rod 203 to slide in the opposite direction on the fixed sleeve 201, causing the anti-backflow plate 205 to move in the opposite direction in the flow groove of the ultrasonic water meter body 1 until the circumferential surface of the anti-backflow plate 205 is in close contact with the inclined surface of the fixed ring 204. At this time, the spring 206 returns to its original shape, and when the liquid flows in the flow groove of the ultrasonic water meter body 1, the liquid will pass through the guide part 302 and gather on the anti-backflow plate 205, which can not only increase the flow impact force of the liquid on the anti-backflow plate 205, but also prevent the liquid from remaining in the contact between the guide ring 3 and the flow groove of the ultrasonic water meter body 1.
[0036] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".
[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-sensitivity anti-backflow ultrasonic water meter, characterized in that: include: An ultrasonic water meter body (1); a backflow prevention component (2) arranged in a flow groove of the ultrasonic water meter body (1); The backflow prevention assembly (2) comprises a fixed sleeve (201), a fixed plate (202), a movable rod (203), a fixed ring (204), a backflow prevention plate (205) and a spring (206); the fixed sleeve (201) is arranged in a flow groove of the ultrasonic water meter body (1); a plurality of fixed plates (202) are fixedly arranged on the circumferential surface of the fixed sleeve (201) in an annular array, and one end of the fixed plates (202) away from the fixed sleeve (201) is in contact with the ultrasonic water meter body (1). The meter body (1) is fixedly connected to the inner wall of the flow slot; the movable rod (203) is inserted into the fixed sleeve (201); the fixed ring (204) is fixedly mounted on the inner wall of the flow slot of the ultrasonic water meter body (1); the anti-backflow plate (205) is fixedly connected to the end of the movable rod (203); the spring (206) is sleeved on the movable rod (203), and the two ends of the spring (206) are respectively fixedly connected to the fixed sleeve (201) and the anti-backflow plate (205).
2. A high-sensitivity anti-backflow ultrasonic water meter according to claim 1, characterized in that: The cross section of the fixing ring (204) is a right-angled trapezoidal structure, and the size of the side of the fixing ring (204) close to the fixing sleeve (201) is smaller than the size of the side of the fixing ring (204) away from the fixing sleeve (201).
3. A high-sensitivity anti-backflow ultrasonic water meter according to claim 2, characterized in that: The backflow prevention plate (205) is a truncated cone structure, and the size of the backflow prevention plate (205) on the side close to the fixed sleeve (201) is larger than the size of the backflow prevention plate (205) on the side away from the fixed sleeve (201).
4. A high-sensitivity anti-backflow ultrasonic water meter according to claim 3, characterized in that: The circumferential surface of the backflow prevention plate (205) is in close contact with the inclined surface of the fixing ring (204).
5. A high-sensitivity anti-backflow ultrasonic water meter according to claim 4, characterized in that: Also includes: The guide ring (3) is fixedly arranged on a side of the fixing ring (204) away from the fixing sleeve (201).
6. A high-sensitivity anti-backflow ultrasonic water meter according to claim 5, characterized in that: The guide ring (3) comprises a fixing portion (301) and a guide portion (302); the fixing portion (301) is fixed on the fixing ring (204), the guide portion (302) is inclined, and the opening direction of the guide portion (302) is arranged away from the fixing ring (204).