Waterproof protective cover of ultrasonic liquid level meter and use method of waterproof protective cover
By introducing reinforcement, disassembly and cleaning mechanisms into the ultrasonic level gauge waterproof protective cover, the problems of unstable position of the transmitting probe and the impact of dirt are solved, the measurement accuracy and equipment stability are improved, the maintenance process is simplified, and the equipment is extended life.
Patent Information
- Application Number
- CN202411366432.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2024-12-31
AI Technical Summary
Ultrasonic level gauge is difficult to reinforce when used, resulting in unstable position of the transmitter probe, affecting measurement accuracy, and being susceptible to mechanical shock or vibration, increasing the risk of equipment wear and damage.
An ultrasonic liquid level meter waterproof protective cover is designed including a reinforcement mechanism, disassembly and assembly mechanism and cleaning mechanism. Through the support mechanism, extrusion mechanism and cleaning mechanism, the stability and cleanliness of the transmitting probe are ensured, and unstable installation and dirt are avoided. Influence.
Improves measurement accuracy and stability, reduces equipment wear risks, simplifies maintenance and repair processes, extends equipment service life, and ensures data reliability.
Smart Images
Figure CN119223401A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of ultrasonic liquid level meters, in particular to a waterproof protective cover for ultrasonic liquid level meters. Background Art
[0002] An ultrasonic level meter is an instrument that uses ultrasonic technology to measure the level of liquid or solid materials. It calculates the distance between the liquid surface and the sensor by emitting ultrasonic pulses and receiving reflected waves, thereby determining the liquid level height. However, ultrasonic level meters are usually equipped with protective covers when in use to resist erosion in harsh environments. At the same time, they can extend the service life of the ultrasonic level meter and improve its measurement accuracy and stability.
[0003] The announcement number is CN213543727U. A protective cover for an ultrasonic level meter is provided with an air pump and an air inlet pipe. Due to long-term use, there will be a lot of dust and other garbage on the surface of the ultrasonic level meter, which will affect the normal use of the ultrasonic level meter, and in severe cases, it will cause damage to the ultrasonic level meter, especially if dust is attached to the upper end of the transmitting probe, which greatly affects the accuracy of the ultrasonic level meter. Therefore, it is necessary to regularly remove dust from the ultrasonic level meter and the inside of the protective cover. By turning on the air pump switch, the air pump can drive the air inlet pipe to vacuum the inside of the protective cover, solving the problem that dust and other garbage affect the detection of the ultrasonic level meter; however, the existing device supports the ultrasonic level meter body through a support rod, but it is difficult to reinforce it during use, resulting in an unstable position of the transmitting probe, thereby affecting the accuracy of the measurement and causing a deviation in the liquid level measurement data. The unstable installation causes the level meter to be subjected to additional mechanical shock or vibration during use, increasing the risk of equipment wear or damage. At the same time, it is easy to vibrate or move during the measurement process, thereby introducing interference and affecting the propagation path and receiving effect of the ultrasonic signal. Summary of the invention
[0004] The purpose of the present invention is to provide a waterproof protective cover for an ultrasonic level meter, which solves the problem in the background art that it is difficult to reinforce the protective cover when used, resulting in an unstable position of a transmitting probe, thereby affecting the accuracy of measurement.
[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A waterproof protective cover for an ultrasonic level meter, comprising: The ultrasonic level meter body, the outer wall of the ultrasonic level meter body is provided with a protective cover body, and the bottom of the ultrasonic level meter body is installed with a transmitting needle, the outer wall of the protective cover body is fixed with an air pump, and the two sides of the protective cover body are fixed with an extension seat, the top of the extension seat is fixed with a pull plate, and the top of the protective cover body is hinged with two opening and closing doors that cooperate with each other; A reinforcement mechanism, which is located between the protective cover body and the ultrasonic level meter body and the transmitting needle and is used to reinforce the ultrasonic level meter body and the transmitting needle. The reinforcement mechanism includes a supporting mechanism, a first squeezing mechanism and a second squeezing mechanism. The supporting mechanism is located inside the protective cover body and is used to resist the ultrasonic level meter body. The first squeezing mechanism is located on one side of the supporting mechanism and is used to squeeze the ultrasonic level meter body. The second squeezing mechanism is located at the bottom of the protective cover body and is used to reinforce the transmitting needle.
[0006] Preferably, the first extrusion mechanism includes a movable sleeve arranged inside the protective cover body, a first threaded rod is installed on one side of the movable sleeve, the first threaded rod is screwed to one side of the protective cover body, and the first threaded rod extends to one side of the protective cover body and is installed with a rotating disk, a handle is fixed on one side of the rotating disk, and a positioning mechanism for positioning the movable sleeve is arranged between the movable sleeve and the protective cover body.
[0007] Preferably, the positioning mechanism comprises two insertion rods fixed on one side of the movable sleeve, the two insertion rods extend to one side of the protective cover body and are fixed with a baffle, and the baffle corresponds to the protective cover body.
[0008] Preferably, the second extrusion mechanism includes a mounting sleeve arranged at the bottom of the protective cover body, a plurality of evenly distributed extrusion sleeves are arranged inside the mounting sleeve, a fixing rod is fixed to one side of the extrusion sleeve, the fixing rod extends to one side of the mounting sleeve and is fixed with a blocking plate, the blocking plate corresponds to the mounting sleeve, a second spring is connected between the extrusion sleeve and the mounting sleeve, the second spring sleeve is arranged on the outer wall of the fixing rod, two limit plates are fixed to one side of the extrusion sleeve, and the two limit plates are plugged into the mounting sleeve.
[0009] Preferably, the support mechanism comprises a fixed sleeve arranged inside the protective cover body, a connecting seat is fixed to the outer wall of the fixed sleeve, the connecting seat is fixed to the inner wall of the protective cover body, and the fixed sleeve corresponds to the movable sleeve.
[0010] Preferably, a disassembly mechanism for disassembling the installation sleeve is arranged between the installation sleeve and the protective cover body, the disassembly mechanism includes a disassembly plate fixed to the top of the installation sleeve, a disassembly rod is inserted into one side of the protective cover body, the disassembly rod is inserted into the disassembly plate, and the disassembly rod extends to one side of the protective cover body and is fixed with a control plate, a second threaded rod is screwed to one side of the protective cover body, the control plate is screwed to the outer wall of the second threaded rod, a threaded sleeve is screwed to the outer wall of the second threaded rod, and a fixing plate connected to the protective cover body is fixed to the top of the threaded sleeve.
[0011] Preferably, two limit rods are fixed on one side of the control panel, the two limit rods are plugged into the protective cover body, an extension rod is fixed on one side of the protective cover body, and a limit groove for the extension rod to slide is provided on the top of the disassembly rod.
[0012] Preferably, a cleaning mechanism for cleaning the emission needle is provided inside the protective cover body, and the cleaning mechanism includes a cleaning sleeve provided inside the protective cover body, a plurality of evenly distributed cleaning cottons are installed inside the cleaning sleeve, and a plurality of connecting plates are fixed to the outer wall of the cleaning sleeve, and the plurality of connecting plates are connected to the inner wall of the protective cover body, and the plurality of cleaning cottons are matched with the outer wall of the emission needle. The cleaning mechanism also includes a rotating shaft rotatably installed on one side of the bottom of the mounting sleeve, a cleaning rod is installed on the outer wall of the rotating shaft, a plurality of evenly distributed cleaning brushes are provided on the top of the cleaning rod, and the tops of the plurality of cleaning brushes evenly match the bottoms of the emission needles, and a limiting mechanism for limiting the rotating shaft is provided between the rotating shaft and the mounting sleeve.
[0013] Preferably, the limiting mechanism includes a movable rod inserted into one side of the mounting sleeve, a movable sleeve is fixed to the outer wall of the movable rod, a movable cavity for the movable sleeve to move is opened inside the mounting sleeve, a first spring is connected between the movable sleeve and the movable cavity, the first spring is sleeved on the outer wall of the movable rod, the movable rod extends to one side of the mounting sleeve and is fixed with the movable rod, a limiting column is fixed to one side of the bottom of the movable rod, and a limiting hole for the limiting column to be inserted is opened on one side of the rotating shaft.
[0014] A method for using a waterproof protective cover of an ultrasonic level meter comprises the following steps: S1. The protective cover body is mounted on the outer wall of the ultrasonic level meter body so that the transmitting needle is located at the bottom of the protective cover body, thereby facilitating measurement; S2. Positioning the ultrasonic level meter body by the first squeezing mechanism and positioning the transmitting needle by the second squeezing mechanism, so that the ultrasonic level meter body is more stable during operation and will not shake easily; S3. The installation sleeve can be separated from the protective cover body through the disassembly and assembly mechanism, and the two can also be connected, so that when the protective cover body is sleeved on the outer wall of the wave level meter body, the emitting needle can be observed without removing the entire protective cover body, which is convenient for users to maintain it; S4. Through the cleaning mechanism, when the wave level meter body drives the emitting needle to move, the emitting needle can be effectively cleaned. When the cleaning rod drives the cleaning brush to move, the bottom of the emitting needle can be effectively cleaned synchronously, thereby improving the measurement efficiency.
[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The present invention can reinforce the ultrasonic level meter body and the transmitting probe by setting a reinforcement mechanism, so that the position of the transmitting probe is more stable, thereby improving the measurement accuracy, reducing the deviation of the liquid level measurement data, avoiding the situation where the level meter is subjected to additional mechanical shock or vibration during use due to unstable installation, reducing the risk of equipment wear or damage, and solving the problem that the existing device is prone to vibration or movement during the measurement process, thereby introducing interference and affecting the propagation path and receiving effect of the ultrasonic signal; 2. The present invention can realize the quick disassembly of the installation sleeve through the setting of the disassembly and assembly mechanism, and cancel the reinforcement of the transmitting probe, so that the user can conveniently maintain and repair the ultrasonic level meter body after installation, and observe it without removing the entire protective cover or performing complicated operations, thereby saving time and labor costs, helping to shorten downtime and improve work efficiency; 3. The present invention can clean the transmitting probe by setting a cleaning mechanism, remove accumulated dirt, sediment or other contaminants, ensure that the propagation of ultrasonic signals is not hindered, further improve the accuracy of liquid level measurement, and help prevent damage to the equipment by dirt and corrosion, maintain the equipment in good condition, and extend its service life. At the same time, cleaning the transmitting probe can avoid signal attenuation or reflection errors, improve measurement stability and repeatability, and ensure data reliability. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the opening and closing door of the present invention when it is opened; Figure 3 is a cross-sectional view of the protective cover body of the present invention; Figure 4 It is a structural schematic diagram of the reinforcement mechanism of the present invention; Figure 5 It is a structural schematic diagram of the disassembly and assembly mechanism of the present invention; Figure 6 It is a partial structural schematic diagram of the disassembly and assembly mechanism of the present invention; Figure 7 It is a structural schematic diagram of the cleaning mechanism of the present invention; Figure 8 It is a schematic diagram of the structure of a part of the cleaning mechanism of the present invention; Fig. 9 Flow chart of the method of the present invention.
[0017] Among them: 1. Protective cover body; 2. Opening and closing door; 3. Reinforcement mechanism; 4. Disassembly and assembly mechanism; 5. Air pump; 6. Extension seat; 7. Pull plate; 8. Ultrasonic level meter body; 9. Transmitter needle; 10. Cleaning sleeve; 11. Connecting plate; 12. Cleaning cotton; 13. Rotating shaft; 14. Cleaning rod; 15. Moving rod; 16. First spring; 31. Fixed sleeve; 32. Movable sleeve; 33. Insertion rod; 34. First threaded rod; 35. Extrusion sleeve; 36. Second spring; 37. Limiting plate; 38. Installation sleeve; 41. Disassembly and assembly plate; 42. Fixed plate; 43. Second threaded rod; 44. Control plate; 45. Limit rod; 46. Disassembly and assembly rod; 47. Extension rod. DETAILED DESCRIPTION
[0018] 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 described embodiments 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 creative work are within the scope of protection of the present invention.
[0019] See also Figure 1 , Figure 2 and Figure 3 , a waterproof protective cover for an ultrasonic level meter, comprising: An ultrasonic level meter body 8, a protective cover body 1 is arranged on the outer wall of the ultrasonic level meter body 8, and a transmitting needle head 9 is installed at the bottom of the ultrasonic level meter body 8, an air pump 5 is fixed to the outer wall of the protective cover body 1, and extension seats 6 are fixed on both sides of the protective cover body 1, a pull plate 7 is fixed on the top of the extension seat 6, and two opening and closing doors 2 that cooperate with each other are hinged on the top of the protective cover body 1.
[0020] Please refer to Figure 2 , Figure 3 and Figure 4, a reinforcement mechanism 3, the reinforcement mechanism 3 is located between the protective cover body 1 and the ultrasonic level meter body 8 and the transmitting needle head 9 and is used to reinforce the ultrasonic level meter body 8 and the transmitting needle head 9, the reinforcement mechanism 3 includes a supporting mechanism, a first squeezing mechanism and a second squeezing mechanism, the supporting mechanism is located inside the protective cover body 1 and is used to resist the ultrasonic level meter body 8, the first squeezing mechanism is located on one side of the supporting mechanism and is used to squeeze the ultrasonic level meter body 8, the second squeezing mechanism is located at the bottom of the protective cover body 1 and is used to reinforce the transmitting needle head 9, the first squeezing mechanism includes a movable sleeve 32 arranged inside the protective cover body 1, a first threaded rod 34 is installed on one side of the movable sleeve 32, the first threaded rod 34 is screwed on one side of the protective cover body 1, and the first threaded rod 34 extends to one side of the protective cover body 1 and is installed with a rotating disk, a handle is fixed on one side of the rotating disk, a positioning mechanism for positioning the movable sleeve 32 is arranged between the movable sleeve 32 and the protective cover body 1, and the positioning mechanism includes a Two plug rods 33, the two plug rods 33 extend to one side of the protective cover body 1 and are fixed with a baffle, the baffle corresponds to the protective cover body 1, the second extrusion mechanism includes a mounting sleeve 38 arranged at the bottom of the protective cover body 1, a plurality of evenly distributed extrusion sleeves 35 are arranged inside the mounting sleeve 38, a fixing rod is fixed to one side of the extrusion sleeve 35, the fixing rod extends to one side of the mounting sleeve 38 and is fixed with a baffle, the baffle corresponds to the mounting sleeve 38, a second spring 36 is connected between the extrusion sleeve 35 and the mounting sleeve 38, and the second The spring 36 is sleeved on the outer wall of the fixed rod, and two limit plates 37 are fixed on one side of the extrusion sleeve 35. The two limit plates 37 are plugged into the installation sleeve 38. The supporting mechanism includes a fixed sleeve 31 arranged inside the protective cover body 1. The outer wall of the fixed sleeve 31 is fixed with a connecting seat, and the connecting seat is fixed to the inner wall of the protective cover body 1. The fixed sleeve 31 corresponds to the movable sleeve 32, and the top of the extrusion sleeve 35 is inclined. Through the inclined setting, the emission needle 9 is easier to enter between multiple extrusion sleeves 35 when plugged in.
[0021] First, turn the handle to drive the rotating disk to start rotating, and the rotation of the rotating disk drives the first threaded rod 34 to rotate, and the first threaded rod 34 is rotated to move on the protective cover body 1, and the movement of the first threaded rod 34 drives the movable sleeve 32 to move, and the movable sleeve 32 is separated from the fixed sleeve 31, and the ultrasonic level meter body 8 to be used is placed in the protective cover body 1 to fit the fixed sleeve 31, and then the handle is rotated in the opposite direction, so that the first threaded rod 34 drives the movable sleeve 32 to move in the opposite direction, and the reverse movement of the movable sleeve 32 allows the ultrasonic level meter body 8 to be effectively squeezed, thereby forming a position, avoiding the situation where the level meter is subjected to additional mechanical shock or vibration during use due to unstable installation, and reducing the risk of equipment wear or damage; When the ultrasonic level meter body 8 moves downward in the protective cover body 1, the emitting needle 9 and the extrusion sleeve 35 are squeezed, and the second spring 36 is contracted by the extrusion of the extrusion sleeve 35. The contraction of the second spring 36 causes the fixing rod to move. The setting of the two limit plates 37 makes the extrusion sleeve 35 more stable during the movement, so that the emitting needle 9 can be effectively squeezed in multiple extrusion sleeves 35, thereby forming a positioning.
[0022] Please refer to Figure 4 , Figure 5 and Figure 6 A disassembly mechanism 4 for disassembling the installation sleeve 38 is provided between the installation sleeve 38 and the protective cover body 1. The disassembly mechanism 4 includes a disassembly plate 41 fixed to the top of the installation sleeve 38. A disassembly rod 46 is inserted into one side of the protective cover body 1. The disassembly rod 46 is inserted into the disassembly plate 41, and the disassembly rod 46 extends to one side of the protective cover body 1 and is fixed with a control board 44. A second threaded rod 43 is screwed to one side of the protective cover body 1. The control board 44 is screwed to the outer wall of the second threaded rod 43. The outer wall of the second threaded rod 43 is screwed with a threaded sleeve. A fixing plate 42 connected to the protective cover body 1 is fixed to the top of the threaded sleeve. Two limit rods 45 are fixed to one side of the control plate 44. The two limit rods 45 are inserted into the protective cover body 1. An extension rod 47 is fixed to one side of the protective cover body 1. A limit groove for the extension rod 47 to slide is provided on the top of the disassembly rod 46.
[0023] The second threaded rod 43 is rotated to drive the control plate 44 to move on its outer wall, and the movement of the control plate 44 drives the disassembly rod 46 to move, and the disassembly rod 46 is separated from the disassembly plate 41 by the movement of the disassembly rod 46. After the disassembly rod 46 and the disassembly plate 41 are separated from each other, the installation sleeve 38 can be separated from the protective cover body 1, thereby realizing the disassembly operation of the installation sleeve 38; When the disassembly rod 46 is moving, the extension rod 47 cooperates with the limit groove, so that the disassembly rod 46 can be limited to prevent it from falling off or shaking during the movement. By moving the control panel 44, the limit rod 45 moves inside the protective cover body 1, thereby forming an operation to position the control panel 44, further increasing the stability of the control panel 44.
[0024] Please also refer to Figure 7 and Figure 8A cleaning mechanism for cleaning the emission needle 9 is arranged inside the protective cover body 1, and the cleaning mechanism includes a cleaning sleeve 10 arranged inside the protective cover body 1, and a plurality of evenly distributed cleaning cottons 12 are installed inside the cleaning sleeve 10, and a plurality of connecting plates 11 are fixed to the outer wall of the cleaning sleeve 10, and the plurality of connecting plates 11 are connected to the inner wall of the protective cover body 1, and the plurality of cleaning cottons 12 are matched with the outer wall of the emission needle 9. The cleaning mechanism also includes a rotating shaft 13 rotatably installed on one side of the bottom of the installation sleeve 38, and a cleaning rod 14 is installed on the outer wall of the rotating shaft 13, and a plurality of evenly distributed cleaning brushes are arranged on the top of the cleaning rod 14. The tops of multiple cleaning brushes are evenly matched with the bottoms of the emission needles 9, and a limiting mechanism for limiting the rotating shaft 13 is arranged between the rotating shaft 13 and the mounting sleeve 38. The limiting mechanism includes a movable rod inserted into one side of the mounting sleeve 38, and a movable sleeve is fixed on the outer wall of the movable rod. A movable cavity for the movable sleeve to move is provided inside the mounting sleeve 38, and a first spring 16 is connected between the movable sleeve and the movable cavity. The first spring 16 is sleeved on the outer wall of the movable rod, and the movable rod extends to one side of the mounting sleeve 38 and is fixed with a movable rod 15. A limiting column is fixed on one side of the bottom of the movable rod 15, and a limiting hole for inserting the limiting column is provided on one side of the rotating shaft 13.
[0025] When the ultrasonic level meter body 8 moves inside the protective cover body 1, the emitting needle 9 moves synchronously. Through the movement of the emitting needle 9, the cleaning cotton 12 can clean its outer wall. Subsequently, the moving rod 15 is pulled to drive the movable rod to move, and the movement of the movable rod drives the movable sleeve to move. The movement of the movable sleeve drives the first spring 16 to contract. Through the contraction of the first spring 16, the moving rod 15 drives the limiting column to move, and the movement of the limiting column separates it from the limiting hole. Then, the rotating shaft 13 is rotated to drive the cleaning rod 14 to move, and the movement of the cleaning rod 14 drives multiple cleaning brushes to move. Through the movement of multiple cleaning brushes, the bottom of the emitting needle 9 can be effectively cleaned, thereby further improving the cleaning effect of the emitting needle 9.
[0026] A method for using a waterproof protective cover of an ultrasonic level meter, characterized in that it comprises the following steps: S1. The protective cover body 1 is sleeved on the outer wall of the ultrasonic level meter body 8 so that the transmitting needle 9 is located at the bottom of the protective cover body 1, thereby facilitating measurement; S2. Position the ultrasonic level meter body 8 by the first squeezing mechanism, and position the transmitting needle 9 by the second squeezing mechanism, so that the ultrasonic level meter body 8 is more stable during operation and will not shake easily; S3. The installation sleeve 38 can be separated from the protective cover body 1 by the disassembly mechanism 4, and the two can also be connected, so that when the protective cover body 1 is sleeved on the outer wall of the wave level meter body 8, the emitting needle 9 can be observed without removing the entire protective cover body 1, which is convenient for users to maintain it; S4. Through the cleaning mechanism, when the wave level meter body 8 drives the emitting needle 9 to move, the emitting needle 9 can be effectively cleaned. When the cleaning rod 14 drives the cleaning brush to move, the bottom of the emitting needle 9 can be effectively cleaned synchronously, thereby improving the measurement efficiency.
[0027] Although the 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 alterations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A waterproof protective cover for an ultrasonic level meter, characterized in that: include: An ultrasonic level meter body (8), wherein a protective cover body (1) is arranged on the outer wall of the ultrasonic level meter body (8), and a transmitting needle head (9) is installed at the bottom of the ultrasonic level meter body (8), an air pump (5) is fixed to the outer wall of the protective cover body (1), and extension seats (6) are fixed on both sides of the protective cover body (1), a pull plate (7) is fixed on the top of the extension seat (6), and two opening and closing doors (2) that cooperate with each other are hinged on the top of the protective cover body (1); A reinforcement mechanism (3), the reinforcement mechanism (3) being located between the protective cover body (1) and the ultrasonic level meter body (8) and the transmitting needle (9) and being used to reinforce the ultrasonic level meter body (8) and the transmitting needle (9), the reinforcement mechanism (3) comprising a support mechanism, a first squeezing mechanism and a second squeezing mechanism, the support mechanism being located inside the protective cover body (1) and being used to abut against the ultrasonic level meter body (8), the first squeezing mechanism being located on one side of the support mechanism and being used to squeeze the ultrasonic level meter body (8), and the second squeezing mechanism being located at the bottom of the protective cover body (1) and being used to reinforce the transmitting needle (9).
2. The waterproof protective cover of an ultrasonic level meter according to claim 1, characterized in that: The first extrusion mechanism comprises a movable sleeve (32) arranged inside the protective cover body (1), a first threaded rod (34) being installed on one side of the movable sleeve (32), the first threaded rod (34) being screwed to one side of the protective cover body (1), and the first threaded rod (34) extending to one side of the protective cover body (1) and being installed with a rotating disk, a handle being fixed on one side of the rotating disk, and a positioning mechanism for positioning the movable sleeve (32) being arranged between the movable sleeve (32) and the protective cover body (1).
3. The waterproof protective cover of an ultrasonic level meter according to claim 2, characterized in that: The positioning mechanism comprises two insertion rods (33) fixed to one side of the movable sleeve (32); the two insertion rods (33) extend to one side of the protective cover body (1) and are fixed with a baffle, the baffle corresponding to the protective cover body (1).
4. The waterproof protective cover of an ultrasonic level meter according to claim 1, characterized in that: The second extrusion mechanism comprises a mounting sleeve (38) arranged at the bottom of the protective cover body (1), a plurality of evenly distributed extrusion sleeves (35) are arranged inside the mounting sleeve (38), a fixing rod is fixed to one side of the extrusion sleeve (35), the fixing rod extends to one side of the mounting sleeve (38) and is fixed to a blocking plate, the blocking plate corresponds to the mounting sleeve (38), a second spring (36) is connected between the extrusion sleeve (35) and the mounting sleeve (38), the second spring (36) is sleeved on the outer wall of the fixing rod, two limiting plates (37) are fixed to one side of the extrusion sleeve (35), and the two limiting plates (37) are plugged into the mounting sleeve (38).
5. The waterproof protective cover of an ultrasonic level meter according to claim 2, characterized in that: The support mechanism comprises a fixed sleeve (31) arranged inside the protective cover body (1), a connecting seat being fixed to the outer wall of the fixed sleeve (31), the connecting seat being fixed to the inner wall of the protective cover body (1), and the fixed sleeve (31) corresponding to the movable sleeve (32).
6. The waterproof protective cover of an ultrasonic level meter according to claim 4, characterized in that: A disassembly mechanism (4) for disassembling the installation sleeve (38) is provided between the installation sleeve (38) and the protective cover body (1), the disassembly mechanism (4) comprising a disassembly plate (41) fixed to the top of the installation sleeve (38), a disassembly rod (46) is plugged into one side of the protective cover body (1), the disassembly rod (46) is plugged into the disassembly plate (41), and the disassembly rod (46) extends to one side of the protective cover body (1) and is fixed with a control plate (44), a second threaded rod (43) is screwed into one side of the protective cover body (1), the control plate (44) is screwed into the outer wall of the second threaded rod (43), a threaded sleeve is screwed into the outer wall of the second threaded rod (43), and a fixing plate (42) connected to the protective cover body (1) is fixed to the top of the threaded sleeve.
7. The waterproof protective cover of an ultrasonic level meter according to claim 6, characterized in that: Two limit rods (45) are fixed on one side of the control panel (44), and the two limit rods (45) are plugged into the protective cover body (1). An extension rod (47) is fixed on one side of the protective cover body (1), and a limit groove for the extension rod (47) to slide is provided on the top of the disassembly rod (46).
8. The waterproof protective cover of an ultrasonic level meter according to claim 1, characterized in that: A cleaning mechanism for cleaning the emission needle (9) is arranged inside the protective cover body (1), the cleaning mechanism comprising a cleaning sleeve (10) arranged inside the protective cover body (1), a plurality of evenly distributed cleaning cottons (12) are installed inside the cleaning sleeve (10), and a plurality of connecting plates (11) are fixed to the outer wall of the cleaning sleeve (10), the plurality of connecting plates (11) are connected to the inner wall of the protective cover body (1), and the plurality of cleaning cottons (12) are matched with the outer wall of the emission needle (9), the cleaning mechanism also comprises a rotating shaft (13) rotatably mounted on one side of the bottom of the mounting sleeve (38), a cleaning rod (14) is installed on the outer wall of the rotating shaft (13), a plurality of evenly distributed cleaning brushes are arranged on the top of the cleaning rod (14), and the tops of the plurality of cleaning brushes evenly match the bottom of the emission needle (9), and a limiting mechanism for limiting the rotating shaft (13) is arranged between the rotating shaft (13) and the mounting sleeve (38).
9. The waterproof protective cover of an ultrasonic level meter according to claim 8, characterized in that: The limiting mechanism comprises a movable rod plugged into one side of the mounting sleeve (38); a movable sleeve is fixed to the outer wall of the movable rod; a movable cavity for the movable sleeve to move is provided inside the mounting sleeve (38); a first spring (16) is connected between the movable sleeve and the movable cavity; the first spring (16) is sleeved on the outer wall of the movable rod; the movable rod extends to one side of the mounting sleeve (38) and is fixed to a movable rod (15); a limiting column is fixed to one side of the bottom of the movable rod (15); and a limiting hole for the limiting column to be inserted is provided on one side of the rotating shaft (13).
10. A method for using a waterproof protective cover for an ultrasonic level meter according to claims 1-9, characterized in that: The following steps are involved: S1. The protective cover body (1) is sleeved on the outer wall of the ultrasonic level meter body (8) so that the transmitting needle (9) is located at the bottom of the protective cover body (1), thereby facilitating measurement; S2, positioning the ultrasonic level meter body (8) by means of a first squeezing mechanism, and positioning the transmitting needle (9) by means of a second squeezing mechanism, so that the ultrasonic level meter body (8) is more stable during operation and does not easily shake; S3. The installation sleeve (38) can be separated from the protective cover body (1) by means of the disassembly mechanism (4), and the two can also be connected, so that when the protective cover body (1) is sleeved on the outer wall of the wave level meter body (8), the emission needle (9) can be observed without removing the entire protective cover body (1), which is convenient for the user to maintain it; S4. When the wave level meter body (8) drives the emitting needle (9) to move, the emitting needle (9) can be effectively cleaned by the cleaning mechanism. When the cleaning rod (14) drives the cleaning brush to move, the bottom of the emitting needle (9) can be effectively cleaned synchronously, thereby improving the measurement efficiency.