An integrated ultrasonic level gauge housing

Abstract

The utility model provides a kind of integrated ultrasonic level meter shell, including electronic unit shell, ultrasonic sensor shell and upper cover, the electronic unit shell is divided into two cavities, the lower part of the outside lower cavity of the electronic unit shell is provided with the mounting thread of the integrated ultrasonic level meter, the upper part of the inside lower cavity of the electronic unit shell is provided with the internal thread for installing the ultrasonic sensor shell, the mounting thread of the outside lower cavity of the electronic unit shell and internal thread keep relative distance in vertical direction, the upper part of the outside ultrasonic sensor shell is provided with external thread for being connected with electronic unit shell, the part except thread between the outside ultrasonic sensor shell in the lower cavity of the electronic unit shell and the inside lower cavity of the electronic unit shell keeps gap between opposite. The technical scheme of the utility model solves the technical problem that the existing integrated ultrasonic level meter near effective measurement range cannot meet the needs.

Description

Technical Field

[0001] This utility model relates to the field of level measurement, and more specifically, to an integrated ultrasonic level gauge housing. Background Technology

[0002] Integrated ultrasonic level gauges are used for level measurement, that is, to measure the liquid level or solid level in various containers, or for distance measurement.

[0003] Existing integrated ultrasonic level gauge housing structures, such as Figure 1 As shown, the device consists of an electronic unit housing 21, an ultrasonic sensor housing 22, and a top cover 25. The electronic unit housing 21 is divided into two cavities: an upper cavity for mounting the electronic unit and a lower cavity with internal threads 24 for connecting to the ultrasonic sensor housing 22. The ultrasonic sensor housing 22 has external threads at its upper and middle parts. The upper thread is used to connect to the single-unit housing, and the exposed thread 23 in the middle serves as the mounting thread for the entire ultrasonic level gauge. An ultrasonic transducer is installed at the front end inside the ultrasonic sensor housing. The ultrasonic transducer emits ultrasonic waves outward through the front end of the ultrasonic sensor housing 22 and receives the reflected echoes.

[0004] Existing integrated ultrasonic level gauges use a single ultrasonic transducer. When the ultrasonic sensor actively emits ultrasonic waves, it cannot simultaneously distinguish the reflected echo. Furthermore, the transducer experiences residual vibration for a certain period after emission; when this residual vibration is strong, the reflected echo also cannot be distinguished. Therefore, level cannot be detected within a certain distance from the sensor tip outwards – this is the blind zone. Additionally, when the ultrasonic transducer emits ultrasonic waves, its housing also vibrates, with the amplitude increasing closer to the transducer. If the mounting threads on the sensor housing are close to the transducer, it will cause resonance in the housing, further increasing the blind zone. Therefore, the mounting threads of existing ultrasonic sensors are usually positioned rearwards, away from the transducer, causing the ultrasonic sensor housing to extend forward considerably. Due to the existence of the blind zone, and because existing integrated ultrasonic level gauges are usually installed via threads 23 on the ultrasonic sensor housing, when used to measure the liquid or solid level in a container, the front part of the sensor must penetrate into the flange of the container being measured. This effectively increases the blind zone of the probe, reducing the effective measurement range of the level gauge at close range. When the level in the container rises too high, it cannot be detected, which is unacceptable in many cases and cannot meet the needs of level measurement. Summary of the Invention

[0005] Based on the aforementioned technical problem that the effective measurement range of existing integrated ultrasonic level gauges cannot meet the requirements, an integrated ultrasonic level gauge housing structure is designed to improve the effective measurement range and further meet the needs of level measurement.

[0006] The technical means adopted in this utility model are as follows:

[0007] This utility model provides an integrated ultrasonic level gauge housing, including an electronic unit housing, an ultrasonic sensor housing, and a top cover. The electronic unit housing is divided into upper and lower cavities. The lower outer part of the lower cavity of the electronic unit housing is provided with the mounting thread of the integrated ultrasonic level gauge. The upper inner part of the lower cavity of the electronic unit housing is provided with an internal thread for mounting the ultrasonic sensor housing. The mounting thread on the outer side of the lower cavity of the electronic unit housing and the internal thread maintain a relative distance in the vertical direction. The upper outer part of the ultrasonic sensor housing is provided with an external thread for connecting with the electronic unit housing. The portion of the ultrasonic sensor housing on the outer side, excluding the threads, inside the lower cavity of the electronic unit housing maintains a gap with the inner side of the lower cavity of the electronic unit housing.

[0008] The upper cavity of the electronic unit housing is used to house the electronic unit device, and the inner front side of the ultrasonic sensor housing is used to install the ultrasonic transducer.

[0009] The technical solution of this utility model solves the technical problem that the effective measurement range of existing integrated ultrasonic level gauges at near distances cannot meet the requirements.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] The integrated ultrasonic level gauge housing structure provided by this utility model has mounting threads for fixing the ultrasonic level gauge located at the lower part of the electronic unit housing. The connection between the ultrasonic sensor housing and the electronic unit housing is located at the upper part of the ultrasonic level gauge mounting threads, maintaining a vertical distance. This allows for a significant reduction in the length of the ultrasonic sensor housing. Simultaneously, a gap is maintained between the ultrasonic sensor housing and the inner side of the lower cavity of the electronic unit housing, preventing the vibration of the ultrasonic transducer from propagating to the mounting threads of the level gauge. While ensuring the residual vibration performance of the ultrasonic level gauge remains unchanged, this effectively improves the near-field measurement range of the ultrasonic level gauge, allowing the measured object to be closer to the front end of the ultrasonic sensor and effectively detected, thus achieving more ideal near-field detection performance.

[0012] Based on the above reasons, the housing structure of this utility model can be widely applied to integrated ultrasonic level gauges. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of an integrated ultrasonic level gauge housing in the prior art.

[0015] Figure 2 This is a schematic diagram of the overall structure of the integrated ultrasonic level gauge housing described in this utility model.

[0016] Figure 3 This is a schematic diagram of the housing structure of the electronic unit of the integrated ultrasonic level gauge of this utility model.

[0017] Figure 4 This is a schematic diagram of the ultrasonic sensor housing structure of the integrated ultrasonic level gauge of this utility model.

[0018] In the diagram: 1, 21: Electronic unit housing; 2, 22: Ultrasonic sensor housing; 3, 23: Ultrasonic level gauge mounting thread; 4: Gap between the lower cavity of the electronic unit and the ultrasonic sensor housing; 5, 24: Internal thread of the electronic unit housing for connecting the ultrasonic sensor; 6: Cable interface; 7, 25: Ultrasonic level gauge top cover; 8: Mounting hole of the electronic unit housing for installing the cable interface; 9: Thread of the ultrasonic sensor housing for connecting to the electronic unit housing. Detailed Implementation

[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0023] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0024] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model. Example

[0026] like Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides an integrated ultrasonic level gauge housing, including an electronic unit housing 1, an ultrasonic sensor housing 2, and a top cover 7. The electronic unit housing is divided into upper and lower cavities. The lower outer part of the lower cavity of the electronic unit housing is provided with an external thread 3 for mounting the integrated ultrasonic level gauge. The upper inner part of the lower cavity of the electronic unit housing is provided with an internal thread 5 for mounting the ultrasonic sensor housing 2. The mounting thread 3 and the internal thread 5 on the lower cavity of the electronic unit housing 1 are kept at a relative distance in the vertical direction. The upper outer part of the ultrasonic sensor housing 2 is provided with an external thread 9 for connecting with the electronic unit housing 1. The part of the ultrasonic sensor housing 2 inside the lower cavity of the electronic unit housing 1, excluding the thread, is kept at a gap 4 with the inner side of the lower cavity of the electronic unit housing 1.

[0027] The upper part of the electronic unit housing 1 is circular, with an inner diameter of 80mm and an inner height of 60mm. The lower part of the electronic unit housing 1 is provided with an ultrasonic level gauge mounting thread 3, with a thread specification of G2 and a thread length of 22mm. The lower cavity is circular inside, with an inner diameter of 53mm and a depth of 45mm. The upper part of the inner side of the lower cavity has an internal thread 5 with a specification of M52 and a thread length of 10mm.

[0028] The ultrasonic sensor housing 2 is circular with an outer diameter of 51mm and a length of 65mm; the upper external thread 9 has an M52 specification and a length of 10mm.

[0029] The upper cavity of the electronic unit housing 1 is used to house the electronic unit device, and the inner side of the front end of the ultrasonic sensor housing 2 is used to install the ultrasonic transducer.

[0030] The integrated ultrasonic level gauge housing described in this embodiment reduces the distance between the front face of the ultrasonic sensor and the mounting thread of the ultrasonic level gauge to only 20mm; while in existing integrated ultrasonic level gauges, the distance between the front face of the ultrasonic sensor and the mounting thread is typically over 50mm. Therefore, the ultrasonic level gauge with this housing structure allows the measured medium to be closer to the front face of the ultrasonic sensor and effectively detected, resulting in more ideal close-range detection performance.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A housing for an integrated ultrasonic level gauge, characterized in that, The device includes an electronic unit housing, an ultrasonic sensor housing, and a top cover. The electronic unit housing is divided into upper and lower cavities. The lower outer part of the lower cavity of the electronic unit housing is provided with the mounting thread for the integrated ultrasonic level gauge. The upper inner part of the lower cavity of the electronic unit housing is provided with the internal thread for mounting the ultrasonic sensor housing. The mounting thread on the outer side of the lower cavity of the electronic unit housing and the internal thread are kept at a relative distance in the vertical direction. The upper outer part of the ultrasonic sensor housing is provided with the external thread for connecting with the electronic unit housing. The portion of the ultrasonic sensor housing on the outer side of the lower cavity of the electronic unit housing, excluding the threads, is kept at a gap with the inner side of the lower cavity of the electronic unit housing.

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