An ultrasonic level meter that is easy to maintain

Abstract

The utility model discloses an ultrasonic liquid level meter that is easy to repair and relates to the technical field of ultrasonic liquid level meters. The ultrasonic liquid level meter that is easy to repair comprises a liquid level meter body, and each limiting mechanism is provided with a fixing plate, a mounting groove, a sliding groove, a sliding block and a limiting plate. By providing the limiting plate, a sealing cover is rotated to release the threaded connection between the sealing cover and the liquid level meter body. Since both ends of a sealing ring that is in contact with the sealing cover are clamped by the limiting plate, at this time, as the connection between the sealing cover and the liquid level meter body is released, the connection between the sealing cover and the liquid level meter body is also released. At this time, the liquid level meter body is pulled upward to release the connection between the liquid level meter body and the mounting bracket. At this time, another sealing ring is fixed by the limiting plate outside the liquid level meter body and does not fall off during the movement of the liquid level meter body, thereby preventing the sealing ring from falling off during the process of staff disassembling the liquid level meter for repair, affecting the installation of the liquid level meter after repair, and reducing unexpected situations during the repair process.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic level gauges, in particular to an ultrasonic level gauge which is easy to repair. Background Art

[0002] The existing ultrasonic level meter is a digital level meter controlled by a microprocessor.

[0003] At present, the existing two-wire ultrasonic level meter (such as patent number: CN211626619U) discloses an ultrasonic level meter, which includes a level meter body, which is connected to a threaded tube and a connecting tube in sequence, and a signal input line and a power supply and signal output line are respectively provided at both ends of the level meter body. The connection between the signal input line and the power supply and signal output line and the level meter body is provided with a circular tubular threaded tube, and the two threaded tubes are provided with shielding tubes that are threadably matched with each other. The ends of the shielding tubes are sealed and connected with tubular flexible tubes, and the flexible tubes are interference fit with the signal input line and the power supply and signal output line.

[0004] However, in the process of implementing the above technical solution, it was found that at least the following problems exist: when installing the ultrasonic level meter in some pools or wells, a mounting bracket is required. The ultrasonic level meter is inserted into the mounting hole opened by the mounting bracket so that the probe is aligned with the liquid surface. The sealing cover is passed through the probe so that the sealing cover is threadedly connected to the outside of the threaded pipe to fix the ultrasonic level meter on the bracket. The disassembly and assembly are simple, which is convenient for the staff to carry out maintenance. The outer sleeve of the ultrasonic level meter is provided with two sealing rings, which are respectively located at the upper and lower ends of the mounting bracket during installation. When installing or disassembling, the lowest sealing ring needs to be removed before continuing with other steps. If the sealing cover is removed during the maintenance process, the sealing ring at the lower end of the mounting bracket falls into the pool or well due to the lack of support of the sealing cover. Due to the installation height of the ultrasonic level meter, it is difficult for the staff to find the sealing ring, which affects the subsequent installation of the ultrasonic level meter. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an ultrasonic level meter that is easy to maintain, which solves the technical problem that if the sealing cover is removed during the maintenance process, the sealing ring at the lower end of the mounting bracket falls downward into the pool or well due to the lack of support from the sealing cover, and the installation height of the ultrasonic level meter makes it difficult for the staff to retrieve the sealing ring, thus affecting the subsequent installation of the ultrasonic level meter.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An ultrasonic level meter that is easy to repair, comprising a level meter body, a sealing cover is threadedly connected to the lower end of the level meter body, two sealing rings are slidably connected to the lower end of the level meter body, the two sealing rings are located between the sealing cover and the level meter body, a probe is fixedly installed on one end of the level meter body close to the sealing cover, and two limit mechanisms are arranged on one side close to the sealing cover;

[0008] Each limiting mechanism is provided with a fixing plate, a mounting groove, a sliding groove, a sliding block and a limiting plate;

[0009] The fixing plate is fixedly installed on the outside of the sealing cover, the installation groove is opened on the outside of the fixing plate, the slide groove is opened on the inside of the installation groove, the slider is slidably connected to the inside of the slide groove, the limit plate is clamped in the inside of the slide groove, the limit plate is attached to the outside of the sealing ring, and the same limit mechanism is arranged on the side of the level meter body close to the sealing cover.

[0010] A spring is fixedly installed inside each slide slot, a slider is fixedly connected to the outside of the spring, a fixed shaft is fixedly connected inside each slide slot, the spring is movably sleeved on the outside of the fixed shaft, a round hole is opened on the outside of each slider, and the slider is slidably connected to the outside of the fixed shaft through the round hole.

[0011] Preferably, a handle is arranged on the outside of the sealing cover, a rotating shaft is rotatably connected to the outside of the sealing cover, and the handle is fixedly connected to the outside of the rotating shaft.

[0012] Preferably, a placement groove is provided on the outside of the sealing cover, and the rotating shaft is rotatably connected to the inside of the placement groove.

[0013] Beneficial effects: 1. By setting a limit plate and cooperating with the sealing ring, if the sealing ring is damaged during the maintenance process, the limit plate is pulled to move the limit plate away from the sealing ring. At this time, the sealing ring can be removed and a new sealing ring is placed between the two fixed plates. The limit plate is pushed so that the limit plate fixes the two ends of the sealing ring. At this time, the sealing ring is fixed. When the staff performs maintenance, the sealing cover is rotated to release the threaded connection between the sealing cover and the liquid level meter body. Since the two ends of the sealing ring that are in contact with the sealing cover are clamped by the limit plate, the connection between the sealing cover and the liquid level meter body is released. At this time, the connection between the sealing cover and the liquid level meter body is also released. At this time, the liquid level meter body is pulled upward to release the connection between the liquid level meter body and the mounting bracket. At this time, the other sealing ring is fixed by the limit plate outside the liquid level meter body, and will not fall off during the movement of the liquid level meter body, thereby preventing the sealing ring from falling off during the process of the staff disassembling the liquid level meter for maintenance, affecting the installation of the liquid level meter after maintenance, and reducing unexpected situations during the maintenance process.

[0014] 2. By setting the spring and cooperating with the slider, when installing the sealing ring, first pull the limit plate on one side. At this time, the slider moves inside the slide groove. At this time, the slider compresses the spring, and one side of the sealing ring is fitted with the fixed plate. At this time, release the limit plate, and the limit plate moves under the action of the spring. Due to the material of the sealing ring body, the limit plate squeezes the sealing ring to make the limit plate and the sealing ring fit together. At this time, pull the limit plate on the other side to fix the other side of the sealing ring, which facilitates the installation of the sealing ring and increases the stability of the installation of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 For this utility model Figure 1 The structural diagram of the liquid level gauge body;

[0018] Figure 3 For this utility model Figure 1 Structural diagram of the middle fixed plate;

[0019] Figure 4 For this utility model Figure 1 Cross-sectional structural diagram of the middle fixing plate.

[0020] Legend: 1. Liquid level meter body; 2. Sealing cover; 3. Sealing ring; 4. Fixed plate; 5. Mounting groove; 6. Slide groove; 7. Slider; 8. Limit plate; 9. Probe; 10. Spring; 11. Fixed shaft; 12. Round hole; 13. Handle; 14. Rotating shaft; 15. Placement groove. DETAILED DESCRIPTION

[0021] The embodiment of the present application provides an ultrasonic level meter that is easy to maintain, thereby effectively solving the technical problem that if the sealing cover 2 is removed during the maintenance process, the sealing ring 3 located at the lower end of the mounting bracket will fall downward into the pool or well due to the lack of support from the sealing cover 2, and the installation height of the ultrasonic level meter will make it difficult for the staff to retrieve the sealing ring 3, thereby affecting the subsequent installation of the ultrasonic level meter.

[0022] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4The technical solution in the embodiment of the present application effectively solves the technical problem that if the sealing cover 2 is removed during the maintenance process, the sealing ring 3 at the lower end of the mounting bracket falls downward into the pool or well due to the lack of support from the sealing cover 2, and the installation height of the ultrasonic level meter makes it difficult for the staff to find the sealing ring 3, thereby affecting the subsequent installation of the ultrasonic level meter. The overall idea is as follows:

[0023] In view of the problems existing in the prior art, the utility model provides an ultrasonic liquid level meter that is easy to repair, the ultrasonic liquid level meter that is easy to repair comprises a liquid level meter body 1, a sealing cover 2 is threadedly connected to the lower end of the liquid level meter body 1, two sealing rings 3 are slidably connected to the lower end of the liquid level meter body 1, the two sealing rings 3 are located between the sealing cover 2 and the liquid level meter body 1, a probe 9 is fixedly installed at one end of the liquid level meter body 1 close to the sealing cover 2, and two limiting mechanisms are arranged on one side of the sealing cover 2 close to the sealing cover 2;

[0024] Each limiting mechanism is provided with a fixing plate 4, a mounting groove 5, a sliding groove 6, a sliding block 7 and a limiting plate 8;

[0025] The fixing plate 4 is fixedly mounted on the outside of the sealing cover 2, the mounting groove 5 is provided on the outside of the fixing plate 4, the slide groove 6 is provided on the inside of the mounting groove 5, the slider 7 is slidably connected to the inside of the slide groove 6, the limit plate 8 is clamped to the inside of the slide groove 6, and the limit plate 8 is attached to the outside of the sealing ring 3;

[0026] The same limiting mechanism is arranged on one side of the liquid level meter body 1 close to the sealing cover 2 .

[0027] By setting a limit plate 8 and cooperating with the sealing ring 3, if the sealing ring 3 is damaged during the maintenance process, the limit plate 8 is pulled to make the limit plate 8 away from the sealing ring 3. At this time, the sealing ring 3 can be removed, and a new sealing ring 3 is placed between the two fixing plates 4, and the limit plate 8 is pushed so that the limit plate 8 fixes the two ends of the sealing ring 3. At this time, the sealing ring 3 is fixed. When the staff performs maintenance, the sealing cover 2 is rotated to release the threaded connection between the sealing cover 2 and the liquid level meter body 1. Since the two ends of the sealing ring 3 that are in contact with the sealing cover 2 are clamped by the limit plate 8, at this time, as the connection between the sealing cover 2 and the liquid level meter body 1 is released, the connection between the sealing cover 2 and the liquid level meter body 1 is also released. At this time, the liquid level meter body 1 is pulled upward to release the connection between the liquid level meter body 1 and the mounting bracket. At this time, the other sealing ring 3 is fixed by the limit plate 8 outside the liquid level meter body 1, and does not fall off during the movement of the liquid level meter body 1, thereby preventing the sealing ring 3 from falling off during the process of the staff disassembling the liquid level meter for maintenance, affecting the installation of the liquid level meter after maintenance, thereby reducing unexpected situations during the maintenance process.

[0028] A spring 10 is fixedly installed inside each slide slot 6;

[0029] The slider 7 is fixedly connected to the outside of the spring 10 to provide support for the connection between the limit plate 8 and the sealing ring 3 .

[0030] A fixed shaft 11 is fixedly connected inside each slide groove 6;

[0031] The spring 10 is movably sleeved on the outside of the fixed shaft 11 to limit the moving path of the spring 10 .

[0032] A circular hole 12 is formed on the outside of each slider 7;

[0033] The sliding block 7 is slidably connected to the outside of the fixed shaft 11 through the circular hole 12 to avoid affecting the sliding of the sliding block 7.

[0034] A handle 13 is provided on the outside of the sealing cover 2;

[0035] The outside of the sealing cover 2 is rotatably connected with a rotating shaft 14 , and the handle 13 is fixedly connected to the outside of the rotating shaft 14 , so as to facilitate the rotation of the handle 13 .

[0036] The outside of the sealing cover 2 is provided with a placement groove 15;

[0037] The rotating shaft 14 is rotatably connected to the inside of the placement groove 15 to facilitate the placement of the handle 13.

[0038] By setting the spring 10 and cooperating with the slider 7, when installing the sealing ring 3, first pull the limit plate 8 on one side, then the slider 7 moves inside the slide groove 6, and the slider 7 compresses the spring 10, and at this time one side of the sealing ring 3 is fitted with the fixed plate 4, and then release the limit plate 8, and the limit plate 8 moves under the action of the spring 10. Due to the material of the sealing ring 3 body, the limit plate 8 squeezes the sealing ring 3 so that the limit plate 8 and the sealing ring 3 are fitted, and at this time, pull the limit plate 8 on the other side to fix the other side of the sealing ring 3, which facilitates the installation of the sealing ring 3 and increases the stability of the installation of the sealing ring 3.

[0039] Working principle:

[0040] In the first step, when the staff is overhauling, the sealing cover 2 is rotated to release the threaded connection between the sealing cover 2 and the liquid level meter body 1. Since the two ends of the sealing ring 3 that fits the sealing cover 2 are clamped by the limit plate 8, at this time, as the connection between the sealing cover 2 and the liquid level meter body 1 is released, the connection between the sealing cover 2 and the liquid level meter body 1 is also released. At this time, the liquid level meter body 1 is pulled upward to release the connection between the liquid level meter body 1 and the mounting bracket. At this time, the other sealing ring 3 is fixed by the limit plate 8 outside the liquid level meter body 1, and does not fall off during the movement of the liquid level meter body 1, preventing the sealing ring 3 from falling off during the process of the staff disassembling the liquid level meter for overhaul, affecting the installation of the liquid level meter after overhaul, and reducing accidents during the overhaul process;

[0041] In the second step, if the sealing ring 3 is damaged during the inspection and maintenance process, pull the limit plate 8 to make the limit plate 8 away from the sealing ring 3. At this time, the sealing ring 3 can be removed. When installing the sealing ring 3, first pull the limit plate 8 on one side. At this time, the slider 7 moves inside the slide groove 6. At this time, the slider 7 compresses the spring 10, and at this time, one side of the sealing ring 3 is fitted with the fixed plate 4. At this time, release the limit plate 8, and the limit plate 8 moves under the action of the spring 10. Due to the material of the sealing ring 3 body, the limit plate 8 squeezes the sealing ring 3 to make the limit plate 8 fit with the sealing ring 3. At this time, pull the limit plate 8 on the other side to fix the other side of the sealing ring 3, which facilitates the installation of the sealing ring 3 while increasing the stability of the installation of the sealing ring 3.

[0042] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. An ultrasonic level meter that is easy to maintain, comprising a level meter body (1), the lower end of the level meter body (1) is threadedly connected to a sealing cover (2), the lower end of the level meter body (1) is slidably connected to two sealing rings (3), the two sealing rings (3) are located between the sealing cover (2) and the level meter body (1), and a probe (9) is fixedly installed at one end of the level meter body (1) close to the sealing cover (2), characterized in that: Two limiting mechanisms are provided on a side of the sealing cover (2) close to the sealing cover (2); Each limiting mechanism is provided with a fixing plate (4), a mounting groove (5), a sliding groove (6), a sliding block (7) and a limiting plate (8); The fixing plate (4) is fixedly mounted on the outside of the sealing cover (2), the mounting groove (5) is opened on the outside of the fixing plate (4), the sliding groove (6) is opened on the inside of the mounting groove (5), the sliding block (7) is slidably connected to the inside of the sliding groove (6), the limiting plate (8) is clamped on the inside of the sliding groove (6), and the limiting plate (8) is attached to the outside of the sealing ring (3); Wherein, a similar limiting mechanism is provided on a side of the liquid level meter body (1) close to the sealing cover (2).

2. The ultrasonic level meter that is easy to maintain as claimed in claim 1, characterized in that: A spring (10) is fixedly installed inside each of the slide grooves (6); The slider (7) is fixedly connected to the outside of the spring (10).

3. The ultrasonic level meter that is easy to maintain as claimed in claim 1 is characterized in that: Each of the slide grooves (6) is fixedly connected to a fixed shaft (11); The spring (10) is movably sleeved on the outside of the fixed shaft (11).

4. The ultrasonic level meter that is easy to maintain as claimed in claim 1 is characterized in that: Each of the sliders (7) is provided with a circular hole (12) on its exterior; The sliding block (7) is slidably connected to the outside of the fixed shaft (11) through the circular hole (12).

5. The ultrasonic level meter that is easy to maintain as claimed in claim 1 is characterized in that: A handle (13) is provided on the outside of the sealing cover (2); The outside of the sealing cover (2) is rotatably connected to a rotating shaft (14), and the handle (13) is fixedly connected to the outside of the rotating shaft (14).

6. The ultrasonic level meter that is easy to maintain as claimed in claim 1 is characterized in that: The sealing cover (2) is provided with a placement groove (15) on its exterior; The rotating shaft (14) is rotatably connected inside the placement groove (15).

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