Ultrasonic water level measuring device for water storage tank

Abstract

The ultrasonic water level measuring device comprises the water storage tank, a measuring hole is formed in the left side of the top of the water storage tank, a support is installed at the position, above the measuring hole, of the top of the water storage tank through a bolt, and an ultrasonic material level measuring meter is arranged at the top of the support. A probe is mounted at the bottom of the ultrasonic level meter; the support is of a frame structure, and ventilation holes are formed in the outer side of the support at equal angles. According to the ultrasonic water level measuring device for the water storage tank, the ultrasonic material level measuring meter is installed on the support, at the moment, the probe is located above the measuring hole, it is guaranteed that signals sent by the probe penetrate through the measuring hole to measure the water level in the water storage tank, and meanwhile air circulation in the support can be guaranteed through the ventilation holes formed in the side face of the support; therefore, the working environment of the probe is changed, the probe is not affected by water vapor in the water storage tank any more, and the measurement accuracy of the ultrasonic level meter is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of water level monitoring, in particular to an ultrasonic water level measuring device for a water tank. Background Art

[0002] In industrial production, process water is often stored in tanks and needs to be pumped to the application process. Existing water level measurement devices typically utilize ultrasonic level meters mounted directly on the upper cover of the tank. This installation method exposes the ultrasonic level meter's probe directly above the water surface in the tank, leading to the formation of a water film on the probe surface. This film alters the propagation path of the ultrasonic wave, causing it to refract and lead to an incorrect time difference between transmission and reception. This, in turn, directly affects the ultrasonic level meter's calculation of the liquid level, resulting in inaccurate measurements.

[0003] Therefore, we proposed that an ultrasonic water level measuring device for a water tank can solve the above problems well. Utility Model Content

[0004] The purpose of the present utility model is to provide an ultrasonic water level measuring device for a water tank, so as to solve the problem raised in the above-mentioned background art that, because the probe of the ultrasonic level measuring instrument is directly exposed to the space above the water surface in the water tank, a water film is easily formed on the probe surface, thereby reducing the measurement accuracy of the ultrasonic level measuring instrument.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an ultrasonic water level measuring device for a water tank, comprising a water tank, a measuring hole being opened on the left side of the top of the water tank, and a bracket being bolted to the top of the water tank above the measuring hole, an ultrasonic level measuring meter being provided on the top of the bracket, and a probe being installed on the bottom of the ultrasonic level measuring meter;

[0006] The bracket is a frame structure, the outer side of the bracket is provided with ventilation holes at equal angles, the probe of the ultrasonic level measuring meter extends into the inner wall of the bracket, and the probe is located above the measuring hole;

[0007] The top of the water tank cover is bolted to a rainproof shed, and the rainproof shed is arranged above the bracket.

[0008] Preferably, the probe on the ultrasonic level measuring meter is located more than 100 mm above the upper cover of the water tank.

[0009] Preferably, an isolation net is provided on the outside of the ventilation hole of the bracket, and the isolation net is made of stainless steel wire mesh.

[0010] Preferably, the top of the inner wall of the bracket is connected with a movable plate, and the opposite surfaces of the two movable plates are installed with gear blocks at equal intervals. The top of the inner wall of the bracket is connected with a driving gear through an axis, and the shaft ends of the two driving gears are sleeved with a guide plate. The top of the inner wall of the bracket is located on one side of the driving gear and is slidably connected with a fitting block, and the opposite surfaces of the two fitting blocks are fixedly connected with a clamping half ring.

[0011] Preferably, the movable plate is slidably set on the inner wall of the bracket through the first protrusion, and a first return spring is installed between the end of the first protrusion and the inner wall of the bracket, the fitting block and the multiple tooth blocks are meshed, the fitting block is inclined away from the side of the clamping half ring, the outer side of the guide plate is fitted with the inclined surface of the fitting block, the fitting block is slidably set on the top of the inner wall of the bracket through the second protrusion, and a second return spring is installed between the end of the second protrusion and the inner wall of the bracket.

[0012] Preferably, a limit plate is symmetrically provided on the top of the bracket about the center point of the ultrasonic level meter, and the limit plate is connected to the driving gear through a traction rope, and a torsion spring is installed at the connection position between the axial end of the limit plate and the bracket.

[0013] Preferably, the two limiting plates are hingedly connected to the bracket, one end of the traction rope is fixed to the inner side of the limiting plate, and the other end of the traction rope is wound around the shaft end of the driving gear.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the ultrasonic water level measuring device for the water storage tank adopts a new structural design, the specific contents of which are as follows:

[0015] (1) The ultrasonic level meter is installed on the bracket. At this time, the probe is located above the measuring hole to ensure that the signal sent by the probe passes through the measuring hole to measure the water level in the water tank. At the same time, the ventilation holes opened on the side of the bracket can ensure air circulation inside the bracket, thereby changing the working environment of the probe so that the probe is no longer affected by the water vapor in the water tank, ensuring the measurement accuracy of the ultrasonic level meter;

[0016] (2) By installing an isolation net on the outside of the bracket, it can prevent small debris from entering the water tank through the ventilation holes and the measuring holes, causing pollution to the industrial water in the water tank, and prevent large debris from entering and getting stuck in the measuring holes, causing the liquid level meter to have a false value, display the maximum, and not change, affecting the accurate measurement of the water level in the water tank;

[0017] (3) To further improve the working condition of the measuring device, a rainproof canopy is installed above the measuring device to prevent the measuring device from being affected by rainy weather;

[0018] (4) When the measuring device needs to be removed, it is only necessary to rotate the two limit plates outward and pull the ultrasonic level meter upward so that the movable plate is reset under the elastic force of the first reset spring, and the side gear block is used to drive the driving gear to rotate in the opposite direction, so that the guide plate no longer presses the fitting block. At this time, the fitting block and the clamping half ring are reset under the elastic force of the second reset spring and no longer clamp the probe, thereby facilitating the removal of the ultrasonic level meter from the bracket;

[0019] Furthermore, the probe on the ultrasonic level meter is inserted through the mounting hole on the bracket. At this time, the movable plate is forced to move downward, and the tooth block on the side is used to drive the driving gear to rotate forward, so that the guide plate rotates and squeezes the fitting block, causing it to move. At this time, the two clamping half rings move relative to each other and clamp and fix the probe. At the same time, the traction rope is used to pull the two limit plates inward to limit the ultrasonic level meter, thereby facilitating the rapid installation of the measuring device and ensuring the stability of the installation of the measuring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the isolation net and the bracket of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the clamping plate, movable plate and driving gear of the utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the ultrasonic level measuring instrument of the utility model;

[0024] Figure 5 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0025] Figure 6 This is a schematic diagram of the structure in which the ultrasonic level measuring meter and the bracket are separated.

[0026] In the figure: 1. Water storage tank; 2. Measuring hole; 3. Ultrasonic level meter; 4. Probe; 5. Bracket; 6. Isolation net; 7. Ventilation hole; 8. Movable plate; 9. Driving gear; 10. Fitting block; 11. Guide plate; 12. Traction rope; 13. Clamping half ring; 14. Limiting plate; 15. Torsion spring; 16. First return spring; 17. Second return spring; 18. Rain shelter. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figures 1-6 , the utility model provides the following technical solutions: an ultrasonic water level measuring device for a water tank;

[0029] Example 1: In order to solve the problem in the prior art that the probe 4 of the ultrasonic level measuring instrument 3 is directly exposed to the space above the water surface in the water tank 1, which causes a water film to form on the surface of the probe 4, thereby reducing the measurement accuracy of the ultrasonic level measuring instrument 3, the following solution is disclosed. Figure 1 、 Figure 2 and Figure 4 As shown, it includes a water tank 1, a measuring hole 2 is opened on the left side of the top of the water tank 1, and a bracket 5 is bolted to the top of the water tank 1 above the measuring hole 2, an ultrasonic level measuring meter 3 is installed on the top of the bracket 5, and a probe 4 is installed on the bottom of the ultrasonic level measuring meter 3, and the probe 4 on the ultrasonic level measuring meter 3 is located at a height greater than 100 mm from the upper cover of the water tank 1;

[0030] The apparatus further comprises: a bracket 5 having a frame structure, vent holes 7 being formed at equal angles on the outside of the bracket 5, an isolation net 6 being provided on the outside of the vent holes 7, and the isolation net 6 being made of a stainless steel wire mesh; a probe 4 on the ultrasonic level measuring instrument 3 extending into the inner wall of the bracket 5, and the probe 4 being located above the measuring hole 2; a rainproof canopy 18 being bolted to the top of the upper cover of the water storage tank 1, and the rainproof canopy 18 being provided above the bracket 5;

[0031] The ultrasonic level meter 3 is mounted on the bracket 5. At this time, the probe 4 is located above the measuring hole 2, ensuring that the signal emitted by the probe 4 passes through the measuring hole 2 to measure the water level in the water tank 1. At the same time, the ventilation holes 7 opened on the side of the bracket 5 can ensure air circulation inside the bracket 5, thereby changing the working environment of the probe 4. The probe 4 is no longer affected by the water vapor in the water tank 1, ensuring the measurement accuracy of the ultrasonic level meter 3. In addition, an isolation net 6 is installed on the outside of the bracket 5 to prevent external debris from entering the water tank 1 through the ventilation holes 7 and the measuring hole 2, thereby preventing the industrial water in the water tank 1 from being polluted. In order to further improve the working condition of the measuring device, a rainproof canopy 18 is provided above the measuring device to prevent the measuring device from being affected by rainy weather.

[0032] Example 2: Different from Example 1, this example utilizes two clamping half rings 13 to move relative to each other and clamp the probe 4 to prevent the probe 4 from deflecting and affecting the measurement accuracy. Figure 1 、 Figure 3 、 Figure 5 and Figure 6 As shown, the top of the inner wall of the bracket 5 is connected with a movable plate 8, and the opposite surfaces of the two movable plates 8 are equidistantly installed with tooth blocks. The top of the inner wall of the bracket 5 is connected to the driving gear 9 through an axis rotation, and the shaft ends of the two driving gears 9 are sleeved with a guide plate 11. The top of the inner wall of the bracket 5 is located on one side of the driving gear 9 and is slidably connected with a fitting block 10, and the opposite surfaces of the two fitting blocks 10 are fixedly connected with a clamping half ring 13. The movable plate 8 is slidably arranged on the inner wall of the bracket 5 through a first protrusion, and a first return spring 16 is installed between the end of the first protrusion and the inner wall of the bracket 5. The fitting block 10 and the multiple tooth blocks are meshed. The side of the fitting block 10 away from the clamping half ring 13 is inclined. The outer side of the guide plate 11 is fitted with the inclined surface of the fitting block 10. The fitting block 10 is slidably arranged on the top of the inner wall of the bracket 5 through a second protrusion, and a second return spring 17 is installed between the end of the second protrusion and the inner wall of the bracket 5.

[0033] The probe 4 on the ultrasonic level measuring instrument 3 is inserted through the mounting hole on the bracket 5. At this time, the movable plate 8 is forced to move downward, and the side tooth block drives the driving gear 9 to rotate forward, causing the guide plate 11 to rotate and squeeze the fitting block 10, prompting it to move. At this time, the two clamping half rings 13 move relative to each other and clamp the probe 4 to prevent the probe 4 from deviating and affecting the measurement accuracy. Then, when the measuring device needs to be removed, it is only necessary to rotate the two limit plates 14 outward and pull the ultrasonic level measuring instrument 3 upward, so that the movable plate 8 is reset under the elastic force of the first return spring 16, and the side tooth block drives the driving gear 9 to rotate in the opposite direction, thereby causing the guide plate 11 to no longer squeeze the fitting block 10. At this time, the fitting block 10 and the clamping half ring 13 are reset under the elastic force of the second return spring 17 and no longer clamp the probe 4, thereby facilitating the removal of the ultrasonic level measuring instrument 3 from the bracket 5.

[0034] Example 3: Different from Example 2, this embodiment uses two limit plates 14 to rotate inward to limit the ultrasonic level meter 3, ensuring the stability of the ultrasonic level meter 3 during use. For details, refer to Figure 1 、 Figure 3 、 Figure 5 and Figure 6As shown, a limit plate 14 is symmetrically arranged on the top of the bracket 5 about the center point of the ultrasonic level measuring instrument 3, and the limit plate 14 is connected to the driving gear 9 by a traction rope 12. A torsion spring 15 is installed at the connection position between the axial end of the limit plate 14 and the bracket 5. The two limit plates 14 and the bracket 5 are hingedly connected. One end of the traction rope 12 is fixed to the inner side surface of the limit plate 14, and the other end of the traction rope 12 is wrapped around the axial end of the driving gear 9;

[0035] When installing the measuring device, the two driving gears 9 rotate forward and reel in the traction rope 12. At the same time, the traction rope 12 pulls the limit plate 14 to rotate, so that the two limit plates 14 rotate inward to limit the ultrasonic level meter 3, ensuring the stability of the ultrasonic level meter 3 during use. When disassembling the measuring device, the two limit plates 14 rotate in the opposite direction under the stored force of the torsion spring 15, and no longer limit the ultrasonic level meter 3, thereby facilitating the removal of the measuring device from the bracket 5.

[0036] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ultrasonic water level measuring device for a water tank, comprising a water tank (1), a measuring hole (2) being opened on the left side of the top of the water tank (1), and a bracket (5) being bolted to the top of the water tank (1) above the measuring hole (2), an ultrasonic level measuring instrument (3) being arranged on the top of the bracket (5), and a probe (4) being installed at the bottom of the ultrasonic level measuring instrument (3); It is characterized in that Also includes: The bracket (5) is a frame structure, and ventilation holes (7) are provided on the outer side of the bracket (5) at equal angles. The probe (4) on the ultrasonic level measuring instrument (3) extends into the inner wall of the bracket (5), and the probe (4) is located above the measuring hole (2); The top of the upper cover of the water storage tank (1) is bolted to a rainproof shed (18), and the rainproof shed (18) is located above the bracket (5).

2. The ultrasonic water level measuring device for a water tank according to claim 1, characterized in that: The probe (4) on the ultrasonic level measuring instrument (3) is located at a distance of more than 100 mm from the upper cover of the water storage tank (1).

3. The ultrasonic water level measuring device for a water tank according to claim 1, characterized in that: The bracket (5) is provided with an isolation net (6) on the outside of the ventilation hole (7), and the isolation net (6) is made of stainless steel wire mesh.

4. The ultrasonic water level measuring device for a water tank according to claim 1, characterized in that: The top of the inner wall of the bracket (5) is connected with a movable plate (8) through it, and the opposite surfaces of the two movable plates (8) are equipped with gear blocks at equal intervals. The top of the inner wall of the bracket (5) is connected with a driving gear (9) through an axis, and the shaft ends of the two driving gears (9) are sleeved with a guide plate (11). The top of the inner wall of the bracket (5) is located on one side of the driving gear (9) and is slidably connected with a fitting block (10), and the opposite surfaces of the two fitting blocks (10) are fixedly connected with a clamping half ring (13).

5. The ultrasonic water level measuring device for a water tank according to claim 4, characterized in that: The movable plate (8) is slidably arranged on the inner wall of the bracket (5) through a first protrusion, and a first return spring (16) is installed between the end of the first protrusion and the inner wall of the bracket (5), the driving gear (9) and the multiple tooth blocks are meshed, the fitting block (10) is inclined away from the side of the clamping half ring (13), the outer side of the guide plate (11) is fitted with the inclined surface of the fitting block (10), the fitting block (10) is slidably arranged on the top of the inner wall of the bracket (5) through a second protrusion, and a second return spring (17) is installed between the end of the second protrusion and the inner wall of the bracket (5).

6. The ultrasonic water level measuring device for a water tank according to claim 1, characterized in that: A limit plate (14) is symmetrically arranged on the top of the bracket (5) about the center point of the ultrasonic level measuring meter (3), and the limit plate (14) is connected to the driving gear (9) via a traction rope (12). A torsion spring (15) is installed at the connection position between the axial end of the limit plate (14) and the bracket (5).

7. The ultrasonic water level measuring device for a water tank according to claim 6, characterized in that: The two limiting plates (14) are hingedly connected to the bracket (5), one end of the traction rope (12) is fixed to the inner side of the limiting plate (14), and the other end of the traction rope (12) is wound around the shaft end of the driving gear (9).

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