A liquid level gauge purging device
The horizontal-vertical dual adjustment components enable omnidirectional angle adjustment of the purging nozzle, solving the problem of uneven purging effect caused by the fixed purging angle, and improving the purging effect and equipment reliability in complex environments.
Patent Information
- Application Number
- CN202521782520.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-24
- Estimated Expiration
- 2035-08-21
Smart Images

Figure CN224542542U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid level gauge purging technology, specifically to a liquid level gauge purging device. Background Technology
[0002] An ultrasonic level gauge is a non-contact instrument that measures liquid level using ultrasonic waves. Its working principle involves emitting ultrasonic pulses to the liquid surface, receiving the reflected waves, and calculating the time difference to determine the liquid level distance. This device offers advantages such as accurate measurement, rapid response, and easy installation, and is widely used in industries such as chemical engineering, water treatment, and food processing, especially for monitoring the level of corrosive, viscous, or high-temperature liquids. However, in practical applications, ultrasonic level gauges are susceptible to the effects of dust, steam, or adhering media, leading to measurement errors or signal attenuation. Therefore, a purging device is often used for maintenance. The purging system continuously introduces clean gas (such as compressed air or nitrogen) around the probe, forming a protective air curtain that effectively removes dirt, condensate, or residual media from the probe surface, ensuring stable ultrasonic signal transmission. The purging pressure and flow rate need to be adjusted according to operating conditions to avoid excessive purging that could interfere with measurement or result in excessive energy consumption. Furthermore, some intelligent purging devices can be combined with timed or on-demand start functions to further improve equipment reliability and lifespan. In summary, the combined use of ultrasonic level gauges and purging systems significantly enhances the stability and accuracy of level monitoring, making it an important technical solution in industrial automation control.
[0003] CN216246675U discloses an air purging device for an ultrasonic level gauge. It includes an ultrasonic level gauge connected to a fixed base, with the probe of the ultrasonic level gauge located below the fixed base. An air supply device is provided on one side of the ultrasonic level gauge, connected to an air supply pipeline. The end of the air supply pipeline away from the air supply device has a first purging pipeline and a second purging pipeline. One end of the gas outlet of the first purging pipeline passes through the fixed base and is close to the probe of the ultrasonic level gauge. The other end of the gas outlet of the second purging pipeline passes through the fixed base and is located above the measured liquid. This device can solve the problem of measurement value fluctuations caused by high temperature and humidity environments, ensuring the reliability and stability of the measurement. It solves the problems of frequent equipment start-ups and shutdowns and high failure rates caused by measurement inaccuracies, avoiding environmental incidents. It is simple to operate and economical.
[0004] The aforementioned ultrasonic level gauge air purging device uses a fixed-position purging pipe design, and the purging angle cannot be adjusted according to the actual working conditions. This also leads to uneven purging effect in complex environments (such as complex internal structures of containers and variable media properties). Utility Model Content
[0005] This invention proposes a liquid level gauge purging device, which solves the problem in the prior art where the fixed purging angle is not adjustable, and thus the purging effect is uneven in complex environments (such as complex internal structures of containers and variable media properties).
[0006] The technical solution of this utility model is as follows: A liquid level gauge purging device includes a mounting base and an ultrasonic liquid level gauge body assembled in the middle of the mounting base. A shock-absorbing support assembly is provided on the side of the mounting base. A horizontal adjustment assembly is provided inside the shock-absorbing support assembly. The horizontal adjustment assembly includes an inner turntable that can rotate horizontally on the side of the mounting base. A vertical adjustment assembly is provided inside the inner turntable. The vertical adjustment assembly includes a hanging sleeve that can drive the purging nozzle to rotate vertically below the mounting base.
[0007] Preferably, the shock-absorbing support assembly includes a ring seat and a rubber ring pad, the rubber ring pad being fixedly connected to the outside of the ring seat, and the ring seat being snapped into the groove on the side of the mounting base by the rubber ring pad.
[0008] Preferably, the leveling assembly further includes a main sleeve plate and a secondary sleeve plate, which are integral and interconnected, and are fixedly connected to the middle of the ring seat.
[0009] Preferably, the leveling assembly further includes a first motor, which is fixedly mounted on the top of the sub-sleeve. A first rotating shaft is fixedly connected to the output end of the first motor, and a gear plate is fixedly connected to the end of the first rotating shaft away from the first motor. The gear plate is rotatably connected inside the sub-sleeve through the first motor.
[0010] Preferably, the leveling component further includes ball bearings, which are rotatably connected in a ring to the upper and lower outer sides of the inner turntable. The inner turntable is rotatably connected to the inside of the main sleeve disc via the ball bearings. The outer side of the inner turntable has a toothed groove group, which is in contact with and meshes with the toothed disc.
[0011] Preferably, the vertical adjustment component further includes an inner rotating sleeve, which is fixedly connected to the middle of the inner turntable.
[0012] Preferably, the vertical adjustment component further includes a vertical sleeve, which is fixedly connected to the middle of the inner turntable, and a vertical groove is formed through the middle of the vertical sleeve.
[0013] Preferably, the vertical adjustment component further includes a second rotating shaft, the middle of which is fixedly connected to the hanging sleeve, and both ends of which are rotatably connected to the vertical sleeve.
[0014] Preferably, the vertical adjustment assembly further includes a second motor, which is fixedly installed on the lower part of the outer side of the vertical sleeve, and the output end of the second motor is fixedly connected to the second rotating shaft.
[0015] Preferably, the vertical adjustment assembly further includes a threaded sleeve, which is fixedly connected to the through slot on the side of the hanging sleeve. A bolt is threadedly connected to the middle of the threaded sleeve. The vertical adjustment assembly also includes a top pad, which is disposed inside the hanging sleeve and is fixedly connected to the bolt.
[0016] The beneficial effects of this utility model are as follows:
[0017] This design incorporates both horizontal and vertical adjustment components, enabling omnidirectional angle adjustment of the purge nozzle:
[0018] Horizontal adjustment component: The first motor drives the gear plate to mesh with the gear set, causing the inner turntable to rotate horizontally.
[0019] Vertical adjustment component: A second motor drives a second rotating shaft to achieve vertical rotation of the mounting sleeve and the blowing nozzle.
[0020] This design allows the purging angle to be flexibly adjusted according to the actual working conditions such as container structure and media characteristics, ensuring no cleaning dead spots. Attached Figure Description
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0022] Figure 1 This is a schematic diagram of the overall device of this utility model;
[0023] Figure 2 This is a schematic diagram of the shock-absorbing support component of this utility model;
[0024] Figure 3 This is a side top view of the horizontal adjustment component and the vertical adjustment component of this utility model;
[0025] Figure 4 This is a schematic diagram of the bottom side of the vertical adjustment component of this utility model;
[0026] In the diagram: 1. Shock-absorbing support assembly; 11. Ring seat; 12. Rubber ring pad; 2. Horizontal adjustment assembly; 21. Main sleeve; 211. Secondary sleeve; 22. First motor; 221. First rotating shaft; 222. Gear plate; 23. Inner rotating plate; 231. Ball bearing; 232. Gear groove assembly; 3. Vertical adjustment assembly; 31. Inner rotating sleeve; 32. Vertical sleeve; 33. Vertical groove; 34. Second motor; 341. Second rotating shaft; 35. Hanging sleeve; 36. Threaded sleeve; 361. Bolt; 362. Top pad; 4. Mounting base; 41. Ultrasonic level gauge body. Detailed Implementation
[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0028] For examples, please refer to Figures 1-4 This utility model provides a technical solution: a liquid level gauge purging device, including a mounting base 4, an ultrasonic liquid level gauge body 41 assembled in the middle of the mounting base 4, a shock-absorbing support assembly 1 provided on the sides of the mounting base 4, a horizontal adjustment assembly 2 provided on the inner side of the shock-absorbing support assembly 1, the horizontal adjustment assembly 2 including an inner turntable 23 that can achieve horizontal rotation on the sides of the mounting base 4, a vertical adjustment assembly 3 provided on the inner side of the inner turntable 23, and a hanging sleeve 35 that can drive the purging nozzle to achieve vertical rotation below the mounting base 4;
[0029] This design adopts a horizontal-vertical dual adjustment component to solve the problem of uneven purging effect caused by the fixed purging angle in the existing technology, which is prone to occur in complex environments (such as complex internal structures of containers and variable media properties).
[0030] The shock-absorbing support assembly 1 includes a ring seat 11 and a rubber ring pad 12. The rubber ring pad 12 is fixedly connected to the outside of the ring seat 11, and the ring seat 11 is snapped into the groove on the side of the mounting base 4 by the rubber ring pad 12.
[0031] The horizontal adjustment component 2 also includes a main sleeve plate 21 and a secondary sleeve plate 211. The main sleeve plate 21 and the secondary sleeve plate 211 are integral and connected. The main sleeve plate 21 and the secondary sleeve plate 211 are fixedly connected to the middle of the ring seat 11.
[0032] The horizontal adjustment assembly 2 also includes a first motor 22, which is fixedly installed on the top of the sub-sleeve 211. The output end of the first motor 22 is fixedly connected to a first rotating shaft 221. A gear 222 is fixedly connected to the end of the first rotating shaft 221 that is away from the first motor 22. The gear 222 is rotatably connected inside the sub-sleeve 211 by the first motor 22.
[0033] The horizontal adjustment assembly 2 also includes a ball bearing 231, which is rotatably connected to the upper and lower outer sides of the inner turntable 23 in a ring shape. The inner turntable 23 is rotatably connected to the inside of the main sleeve 21 through the ball bearing 231. There are toothed groove groups 232 on the outer side of the inner turntable 23, and the toothed groove groups 232 and the toothed disc 222 are in contact and meshing rotatably connected.
[0034] The vertical adjustment component 3 also includes an inner rotating sleeve 31, which is fixedly connected to the middle of the inner turntable 23.
[0035] The vertical adjustment component 3 also includes a vertical sleeve 32, which is fixedly connected to the middle of the inner turntable 23, and a vertical groove 33 is provided through the middle of the vertical sleeve 32.
[0036] The vertical adjustment component 3 also includes a second rotating shaft 341, the middle of which is fixedly connected to the hanging sleeve 35, and the two ends of which are rotatably connected to the vertical sleeve 32.
[0037] The vertical adjustment assembly 3 also includes a second motor 34, which is fixedly installed on the lower part of the outer side of the vertical sleeve 32, and the output end of the second motor 34 is fixedly connected to the second rotating shaft 341.
[0038] The vertical adjustment assembly 3 also includes a threaded sleeve 36, which is fixedly connected to the through slot on the side of the hanging sleeve 35. A bolt 361 is threadedly connected to the middle of the threaded sleeve 36. The vertical adjustment assembly 3 also includes a top pad 362, which is located inside the hanging sleeve 35 and is fixedly connected to the bolt 361.
[0039] The working principle and usage process of this utility model are as follows:
[0040] First, assemble the air supply hose and the purge nozzle. Then, the worker holds the purge nozzle and drives the air supply hose through the vertical groove 33 and the hanging sleeve 35. When the purge nozzle is located at the top pad 362, the bolt 361 at the threaded sleeve 36 can be turned until the top pad 362 at the end of the bolt 361 fixes the purge nozzle at the hanging sleeve 35. The above steps complete the installation process of the air supply hose and the purge nozzle at the vertical adjustment component 3.
[0041] In particular, staff can adjust the angle of the purging nozzles according to the actual working conditions;
[0042] Specifically, the first motor 22 is started to drive the first rotating shaft 221 and the toothed disc 222 to rotate. At this time, under the meshing action of the toothed disc 222 and the tooth groove group 232, the inner rotating disc 23 located inside the tooth groove group 232 drives the vertical adjustment component 3 and the entire blowing nozzle to rotate horizontally.
[0043] Simultaneously starting the second motor 34 can drive the second rotating shaft 341 and the hanging sleeve 35 to rotate vertically below the mounting base 4. Through the above-mentioned horizontal and vertical rotation, the blowing nozzle fixedly installed in the middle of the hanging sleeve 35 can move freely within the range and adapt to the current working conditions.
[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A liquid level gauge purging device, comprising a mounting base (4) and an ultrasonic liquid level gauge body (41) assembled in the middle of the mounting base (4), characterized in that, The mounting base (4) is provided with a shock-absorbing support assembly (1) on its sides. The shock-absorbing support assembly (1) is provided with a horizontal adjustment assembly (2) on its inner side. The horizontal adjustment assembly (2) includes an inner turntable (23) that can rotate horizontally on the sides of the mounting base (4). The inner turntable (23) is provided with a vertical adjustment assembly (3) on its inner side. The vertical adjustment assembly (3) includes a hanging sleeve (35) that can drive the blowing nozzle to rotate vertically below the mounting base (4).
2. The liquid level gauge purging device according to claim 1, characterized in that, The shock-absorbing support assembly (1) includes a ring seat (11) and a rubber ring pad (12). The rubber ring pad (12) is fixedly connected to the outside of the ring seat (11). The ring seat (11) is snapped into the groove on the side of the mounting base (4) by the rubber ring pad (12).
3. The level gauge purging device according to claim 2, characterized in that, The horizontal adjustment component (2) also includes a main sleeve plate (21) and a secondary sleeve plate (211). The main sleeve plate (21) and the secondary sleeve plate (211) are integral and connected. The main sleeve plate (21) and the secondary sleeve plate (211) are fixedly connected to the middle of the ring seat (11).
4. The level gauge purging device according to claim 3, characterized in that, The horizontal adjustment assembly (2) further includes a first motor (22), which is fixedly installed on the top of the sub-sleeve disc (211). The output end of the first motor (22) is fixedly connected to a first rotating shaft (221). A gear disc (222) is fixedly connected to the end of the first rotating shaft (221) away from the first motor (22). The gear disc (222) is rotatably connected inside the sub-sleeve disc (211) through the first motor (22).
5. The level gauge purging device according to claim 1, characterized in that, The horizontal adjustment component (2) also includes ball bearings (231), which are rotatably connected in a ring to the upper and lower outer sides of the inner turntable (23). The inner turntable (23) is rotatably connected to the inside of the main sleeve disc (21) through the ball bearings (231). The outer side of the inner turntable (23) has toothed grooves (232), which are in contact with and meshing with the toothed disc (222).
6. The level gauge purging device according to claim 5, characterized in that, The vertical adjustment component (3) also includes an inner rotating sleeve (31), which is fixedly connected to the middle of the inner turntable (23).
7. A level gauge purging device according to claim 6, characterized in that, The vertical adjustment component (3) also includes a vertical sleeve (32), which is fixedly connected to the middle of the inner turntable (23), and a vertical groove (33) is provided through the middle of the vertical sleeve (32).
8. A level gauge purging device according to claim 7, characterized in that, The vertical adjustment component (3) also includes a second rotating shaft (341), the middle part of which is fixedly connected to the hanging sleeve (35), and the two ends of which are rotatably connected to the vertical sleeve (32).
9. A level gauge purging device according to claim 8, characterized in that, The vertical adjustment assembly (3) also includes a second motor (34), which is fixedly installed on the lower part of the outer side of the vertical sleeve (32), and the output end of the second motor (34) is fixedly connected to the second rotating shaft (341).
10. A level gauge purging device according to claim 9, characterized in that, The vertical adjustment assembly (3) also includes a threaded sleeve (36), which is fixedly connected to the through slot on the side of the hanging sleeve (35). A bolt (361) is threadedly connected to the middle of the threaded sleeve (36). The vertical adjustment assembly (3) also includes a top pad (362), which is located inside the hanging sleeve (35) and is fixedly connected to the bolt (361).
Citation Information
Patent Citations
Air purging device of ultrasonic liquid level meter
CN216246675U
