A combined installation protective cover of a thread cylinder sensor for unmanned mine truck
Patent Information
- Application Number
- CN202522255756.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-10-24
AI Technical Summary
传感器的大部分都直接暴露在外部环境中,缺乏有效的防护
本实用新型通过设置安装板和固定防护组件的结构,其中固定防护组件包括相对贴合的第一保护块和第二保护块,它们通过第一半螺纹孔和第二半螺纹孔拼接形成螺纹安装孔,实现了对螺纹圆柱传感器的全面包裹和稳固安装,有效防止了矿山恶劣环境中的灰尘、泥水侵入和矿石撞击,解决了现有安装方式因螺纹圆柱传感器直接暴露在外而缺乏有效防护的问题。
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Figure CN224746765U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mining equipment technology, and in particular to a combined mounting protective cover for a threaded cylindrical sensor used in unmanned mining trucks. Background Technology
[0002] Unmanned mining trucks (hereinafter referred to as unmanned mining trucks) are important intelligent automated operating equipment in mining facilities. By integrating advanced technologies such as high-precision positioning, environmental perception, decision-making and planning, and vehicle control, they can achieve continuous and uninterrupted operation of mining trucks, significantly improving the efficiency, safety, and economy of mining transportation.
[0003] In the operation of unmanned mining trucks, numerous sensors are required to monitor the operational status of critical components in real time to ensure safe and stable operation. Sensors come in various forms, such as photoelectric sensors, Hall effect sensors, and ultrasonic sensors, with the common appearance being threaded cylindrical sensors. In existing technologies, installing these sensors typically involves creating threaded holes in a thin mounting plate, using the plate as a sensor bracket for simple fixation. Most of the sensor is directly exposed to the external environment, lacking effective protection. The harsh environment of mining sites allows dust and mud to easily enter the sensor, affecting its electrical performance and lifespan; impacts from ore can also directly damage the sensor, increasing maintenance costs and the probability of failure, severely hindering the stable operation of unmanned mining trucks. Utility Model Content
[0004] To address the shortcomings of the existing technology, this utility model provides a combined mounting protective cover for a threaded cylindrical sensor used in unmanned mining trucks, which solves at least one of the aforementioned technical problems.
[0005] This utility model provides the following technical solution: A combined mounting protective cover for a threaded cylindrical sensor used in an unmanned mining truck includes: Mounting plate for connecting to the vehicle body of the unmanned mining truck; The fixed protective assembly includes a first protective block and a second protective block that are fitted together. The bottom surface of the first protective block is connected to the mounting plate, and the top surface is a mating surface that is mated with the second protective block. The mating surface of the first protective block is provided with a first semi-threaded hole, and the mating surface of the second protective block is provided with a second semi-threaded hole corresponding to the first semi-threaded hole. The first semi-threaded hole and the second semi-threaded hole are joined together to form a threaded mounting hole, which is used to install a threaded cylindrical sensor.
[0006] In one embodiment, an inverted U-shaped guard plate is provided above the second protective block, the inverted U-shaped guard plate extending axially along the threaded mounting hole, and the length of the inverted U-shaped guard plate being greater than the length of the threaded cylindrical sensor.
[0007] In one embodiment, the first protective block, the second protective block, and the inverted U-shaped guard plate are connected by connecting bolts. A rubber pad is provided between the inverted U-shaped guard plate and the second protective block. The inverted U-shaped guard plate is provided with a first elongated hole for the connecting bolt to pass through, and the first elongated hole extends axially along the threaded mounting hole.
[0008] In one embodiment, the combined mounting protective cover for the threaded cylindrical sensor of the unmanned mining truck further includes an omnidirectional cover. The omnidirectional cover is rectangular in shape and has an opening at the bottom. The omnidirectional cover has a sealed cavity communicating with the opening inside. The sealed cavity covers the fixed protective component and the mounting plate. A wire through hole is provided on the side wall of the omnidirectional cover corresponding to the tail of the threaded cylindrical sensor.
[0009] In one embodiment, the first protective block, the second protective block, and the omnidirectional shield are connected by connecting bolts. A rubber pad is provided between the omnidirectional shield and the second protective block. The omnidirectional shield is provided with a second elongated hole for the connecting bolt to pass through, and the second elongated hole extends axially along the threaded mounting hole.
[0010] In one embodiment, a dustproof plug is provided at the wire hole, the dustproof plug being directly opposite the tail of the threaded cylindrical sensor, and is made of elastic rubber, with a cross-shaped opening in the center for tightly holding the sensor cable.
[0011] In one embodiment, when the threaded cylindrical sensor is a photoelectric sensor or a Hall sensor, the omnidirectional shield is made of a transparent plastic material.
[0012] In one embodiment, a detection hole is provided on the side wall of the omnidirectional shield at the front end of the threaded cylindrical sensor, and the detection hole is used for the detection signal of the threaded cylindrical sensor to pass through.
[0013] In one embodiment, when the threaded cylindrical sensor is a photoelectric sensor, a detection cover made of transparent plastic material is provided at the detection hole.
[0014] In one embodiment, the bottom opening edge of the omnidirectional shield is provided with an annular elastic sealing strip. After the omnidirectional shield is installed, the elastic sealing strip is compressed between the omnidirectional shield and the mounting surface of the mounting plate to form a sealing barrier.
[0015] Compared with the prior art, the present invention has the following beneficial effects: This utility model, through the structure of setting an mounting plate and a fixed protective component, wherein the fixed protective component includes a first protective block and a second protective block that fit together relatively closely, and they are spliced together through the first half-threaded hole and the second half-threaded hole to form a threaded mounting hole, realizes the complete wrapping and stable installation of the threaded cylindrical sensor, effectively prevents the intrusion of dust, mud and water and the impact of ore in the harsh environment of the mine, and solves the problem of the lack of effective protection in the existing installation method because the threaded cylindrical sensor is directly exposed to the outside. Attached Figure Description
[0016] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.
[0017] Figure 1 Schematic diagram of the combined mounting protective cover provided in Embodiment 1 Figure 1 ; Figure 2 Schematic diagram of the combined mounting protective cover provided in Embodiment 1 Figure 2 ; Figure 3 Schematic diagram of the combined mounting protective cover provided in Embodiment 1 Figure 3 ; Figure 4 Schematic diagram of the combined mounting protective cover provided in Embodiment 2 Figure 1 ; Figure 5 Schematic diagram of the combined mounting protective cover provided in Embodiment 2 Figure 2 ; Figure 6 Schematic diagram of the combined mounting protective cover provided in Embodiment 3 Figure 1 ; Figure 7 Schematic diagram of the combined mounting protective cover provided in Embodiment 3 Figure 2 ; Figure 8 Schematic diagram of the combined mounting protective cover provided in Embodiment 3 Figure 3 ; Figure 9 Schematic diagram of the combined mounting protective cover provided in Embodiment 4 Figure 1 ; Figure 10 Schematic diagram of the combined mounting protective cover provided in Embodiment 4 Figure 2 .
[0018] Figure label: 1. Mounting plate; 2. First protective block; 3. Second protective block; 4. Connecting bolt; 5. Rubber pad; 6. Threaded cylindrical sensor; 7. Inverted U-shaped protective plate; 7-1. First elongated hole; 8. Omnidirectional protective cover; 8-1. Second elongated hole; 8-2. Wiring hole; 8-3. Dustproof wiring plug; 8-4. Detection hole; 8-5. Detection cover; 9. Screw. Detailed Implementation
[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0020] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must be equipped with a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0021] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a joint; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0023] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0024] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0025] The following will be combined with the appendix Figures 1 to 10 The present invention will be further described below.
[0026] Example 1 like Figures 1 to 3As shown, this utility model provides a combined mounting protective cover for a threaded cylindrical sensor 6 for an unmanned mining truck, including a mounting plate 1 and a fixing and protective assembly. The mounting plate 1 is used to fix the unmanned mining truck body by bolts or welding to ensure the stability of the overall structure. The fixing and protective assembly includes a first protective block 2 and a second protective block 3 that are relatively fitted together. The bottom surface of the first protective block 2 is connected to the mounting plate 1, and the top surface is a fitting surface that fits with the second protective block 3. The fitting surface of the first protective block 2 is provided with a first semi-threaded hole, and the fitting surface of the second protective block 3 is provided with a second semi-threaded hole corresponding to the first semi-threaded hole. The first semi-threaded hole and the second semi-threaded hole are spliced together to form a threaded mounting hole for mounting the threaded cylindrical sensor 6. The main body of the threaded cylindrical sensor 6 is completely enclosed in the accommodating cavity formed by the first protective block 2 and the second protective block 3, thereby avoiding direct exposure to the external environment and damage from flying stones. While simply thickening the existing mounting bracket plate to form a mounting block could achieve the same protective effect, the increased thickness of the mounting block and the length of the threaded hole inevitably make installation of the threaded cylindrical sensor 6 inconvenient. The traditional method of screwing the threaded cylindrical sensor 6 into the threaded hole requires numerous turns, making installation inconvenient and time-consuming. Furthermore, once the threaded cylindrical sensor 6 is almost fully screwed into the threaded hole, it becomes even more difficult to continue rotating it for further installation. Therefore, this invention innovatively proposes a structure where a first protective block 2 and a second protective block 3 are joined to form a threaded mounting hole. During installation, simply separate the first protective block 2 and the second protective block 3, place the threaded cylindrical sensor 6 on the first half of the threaded hole of the first protective block 2, and then snap the second protective block 3 in place. This method is convenient and efficient. In this embodiment, the first protective block 2 and the second protective block 3 are connected by a connecting bolt 4, with a rubber pad 5 between the connecting bolt 4 and the second protective block 3 to allow for loosening.
[0027] This utility model achieves rapid installation and comprehensive protection for the threaded cylindrical sensor 6 by setting up a fixed protective component structure consisting of an mounting plate 1 and two detachable protective blocks 2 and 3. It solves the problems of traditional thin plate installation methods being unable to protect the threaded cylindrical sensor 6, the difficulty in screwing the threaded cylindrical sensor 6 into the thickened mounting block, and the time-consuming and laborious installation. Furthermore, by completely enclosing the threaded cylindrical sensor 6 within the accommodating cavity formed by the protective block, it effectively prevents sensor damage caused by impacts from flying rocks and the intrusion of dust and mud in the mining environment, significantly improving the sensor's service life and reliability, while greatly reducing maintenance costs and the probability of failure.
[0028] Example 2 The difference between this embodiment and Embodiment 1 is that, in addition to the fixed protective component, an inverted U-shaped protective plate 7 is also provided to protect the threaded cylindrical sensor 6. Because of the inverted U-shaped protective plate 7, the length of the fixed protective component can be set to be relatively short, without having to completely cover the threaded cylindrical sensor 6. The front and rear ends of the threaded cylindrical sensor 6 can be exposed outside the fixed protective component. This setting is beneficial for fine-tuning the front and rear position of the threaded cylindrical sensor 6 and for performing electrical wiring operations on the threaded cylindrical sensor 6.
[0029] like Figure 4 and Figure 5 As shown, an inverted U-shaped protective plate 7 is provided above the second protective block 3. This protective plate spans across the second protective block 3 and extends axially along the threaded mounting hole. The length of the inverted U-shaped protective plate 7 is greater than the length of the threaded cylindrical sensor 6, thus forming an effective top and side protection space in the part of the threaded cylindrical sensor 6 that exposes the fixed protective component. This structural design can effectively block impacts from falling rocks and dust accumulation from above, as well as impacts from flying rocks from the side, while also reserving the necessary operating space for the electrical wiring and position adjustment of the threaded cylindrical sensor 6.
[0030] Specifically, the first protective block 2, the second protective block 3, and the inverted U-shaped protective plate 7 are connected by connecting bolts 4. A rubber pad 5 is provided between the inverted U-shaped protective plate 7 and the second protective block 3. The inverted U-shaped protective plate 7 has a first elongated hole 7-1 for the connecting bolts 4 to pass through. The first elongated hole 7-1 extends axially along the threaded mounting hole, forming an adjustable connection structure. This design allows the inverted U-shaped protective plate 7 to be adjusted in position relative to the fixed protective assembly in the axial direction along the threaded mounting hole, thereby adapting to the installation position adjustment requirements of the threaded cylindrical sensor 6 and always maintaining protection above and to the sides of the threaded cylindrical sensor 6.
[0031] Example 3 Although both Embodiment 1 and Embodiment 2 can achieve a certain degree of protection for the threaded cylindrical sensor 6, they do not achieve omnidirectional protection, especially in terms of dust and water resistance, and lack adaptability to the mining working environment. Therefore, this utility model also proposes the technical solution of this embodiment, which differs from Embodiment 1 and Embodiment 2 in that it also provides an omnidirectional protective cover 8.
[0032] Specifically, such as Figure 6 , Figure 7 and Figure 8As shown, the omnidirectional shield 8 is rectangular in shape with an opening at the bottom. Inside the omnidirectional shield 8 is a sealed cavity communicating with the opening, which covers the fixed protective assembly and the mounting plate 1. A wire-passing hole 8-2 is provided on the side wall of the omnidirectional shield 8 corresponding to the tail end of the threaded cylindrical sensor 6. The wire-passing hole 8-2 is used for the passage of the sensor cable. To achieve better dust protection, its diameter can be set to a size compatible with the diameter of the sensor cable.
[0033] Similar to the design concept of Embodiment 2, this embodiment also adopts an adjustable design. The first protective block 2, the second protective block 3, and the omnidirectional shield 8 are connected by connecting bolts 4. A rubber pad 5 is provided between the omnidirectional shield 8 and the second protective block 3. The omnidirectional shield 8 has a second elongated hole 8-1 for the connecting bolts 4 to pass through, and the second elongated hole 8-1 extends axially along the threaded mounting hole. This design allows the omnidirectional shield 8 to be adjusted in position relative to the fixed protective assembly in the axial direction along the threaded mounting hole, thereby adapting the omnidirectional shield 8 to the installation position adjustment requirements of the threaded cylindrical sensor 6 while ensuring a small footprint, and always maintaining protection for the threaded cylindrical sensor 6 from above and to the sides.
[0034] To achieve better dust protection, a dustproof cable plug 8-3 is provided at the cable hole 8-2. The dustproof cable plug 8-3, made of elastic rubber, is positioned directly opposite the tail of the threaded cylindrical sensor 6, and has a cross-shaped opening in its center for tightly securing the sensor cable. This carefully designed position ensures that, after the omnidirectional cover 8 is installed, it aligns directly with the cable interface at the tail of the threaded cylindrical sensor 6, guaranteeing that the sensor cable can be led out via the most direct path. This effectively avoids unnecessary bending of the cable within the cover, reducing the risk of cable damage due to prolonged bending. Furthermore, the dustproof cable plug 8-3 forms a dynamic, self-adaptive sealing barrier, maintaining excellent sealing performance even under external vibration conditions.
[0035] When the threaded cylindrical sensor 6 is a photoelectric sensor or a Hall sensor, the omnidirectional shield 8 is made of transparent plastic material. The working principle of the photoelectric sensor is based on the reflection of light, and the omnidirectional shield 8 made of highly transparent plastic material will not affect the detection effect of the photoelectric sensor. The working principle of the Hall sensor is based on the electromagnetic induction effect of metal, and it will not react to plastic. Therefore, when using these two types of sensors, the threaded cylindrical sensor 6 can be completely covered without affecting the detection effect.
[0036] Regarding the connection method between the first protective block 2 and the mounting plate 1, when bolt connection is used, it can be as follows: Figure 5 As shown, the mounting plate 1 is connected by passing the connecting bolts 4 sequentially through the omnidirectional shield 8, rubber pad 5, second protective block 3, and first protective block 2. Alternatively, it can be done as follows: Figure 8As shown, the mounting plate 1 and the first protective block 2 are directly connected by screws 9. This second connection method makes it easier to install and adjust the position of the threaded cylindrical sensor 6 later.
[0037] Example 4 The difference between this embodiment and Embodiment 3 is that when the mounting position of the threaded cylindrical sensor 6 may suffer significant impact damage, plastic material is not as strong as metal material. However, if a metal material is used to make the omnidirectional protective cover 8, it will hinder the transmission of the detection signal at the front end of the threaded cylindrical sensor 6. Therefore, if... Figure 9 and Figure 10 As shown, in this embodiment, a detection hole 8-4 is provided on the side wall of the omnidirectional shield 8 at the front end of the threaded cylindrical sensor 6. The detection hole 8-4 is used for the detection signal of the threaded cylindrical sensor 6 to pass through. This setting not only meets the requirement of using a high-strength omnidirectional shield 8, but also maximizes the protection of the threaded cylindrical sensor 6.
[0038] To ensure overall dustproof performance, when the threaded cylindrical sensor 6 is a photoelectric sensor, a detection cover 8-5 made of transparent plastic material is provided at the detection hole 8-4. This design not only ensures high overall strength of the omnidirectional protective cover 8 but also achieves a comprehensive dustproof and waterproof sealing effect.
[0039] In order to fundamentally block the intrusion path of dust and mud through the bottom opening of the omnidirectional cover 8, an annular elastic sealing strip is provided at the edge of the bottom opening of the omnidirectional cover 8. After the omnidirectional cover 8 is installed, the elastic sealing strip is compressed between the omnidirectional cover 8 and the mounting surface of the mounting plate 1, forming a sealing barrier, which further improves the dustproof and moisture-proof effect of the device.
[0040] In summary, this utility model, through the structure of the mounting plate 1 and the fixed protective component, wherein the fixed protective component includes a first protective block 2 and a second protective block 3 that fit together, and which are spliced together through the first half-threaded hole and the second half-threaded hole to form a threaded mounting hole, achieves complete enclosure and stable installation of the threaded cylindrical sensor 6, effectively preventing the intrusion of dust, mud and water and the impact of ore in the harsh environment of the mine, and solving the problem of the lack of effective protection in the existing installation method because the threaded cylindrical sensor 6 is directly exposed to the outside.
[0041] Components and principles not described in detail in this utility model can be implemented using various structures and principles known in the prior art.
[0042] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A combination mounting protector for a threaded cylindrical sensor for an unmanned mine truck, characterized in that, include: Mounting plate for connecting to the body of the unmanned mining truck; The fixed protective assembly includes a first protective block and a second protective block that are fitted together. The bottom surface of the first protective block is connected to the mounting plate, and the top surface is a mating surface that is mated with the second protective block. The mating surface of the first protective block is provided with a first semi-threaded hole, and the mating surface of the second protective block is provided with a second semi-threaded hole corresponding to the first semi-threaded hole. The first semi-threaded hole and the second semi-threaded hole are joined together to form a threaded mounting hole, which is used to install a threaded cylindrical sensor.
2. The combination mounting protector for threaded cylindrical sensors of unmanned mining trucks, according to claim 1, characterized in that, An inverted U-shaped protective plate is provided above the second protective block. The inverted U-shaped protective plate extends axially along the threaded mounting hole, and the length of the inverted U-shaped protective plate is greater than the length of the threaded cylindrical sensor.
3. The combination mounting protector for threaded cylindrical sensors of unmanned mining trucks according to claim 2, characterized in that, The first protective block, the second protective block, and the inverted U-shaped guard plate are connected by connecting bolts. A rubber pad is provided between the inverted U-shaped guard plate and the second protective block. The inverted U-shaped guard plate is provided with a first elongated hole for the connecting bolt to pass through, and the first elongated hole extends axially along the threaded mounting hole.
4. The combination mounting protector for threaded cylindrical sensors of unmanned mining trucks according to claim 1, characterized in that, It also includes an omnidirectional shield, which is rectangular in shape with an opening at the bottom. The omnidirectional shield has a sealed cavity inside that communicates with the opening. The sealed cavity covers the fixed protective component and the mounting plate. The omnidirectional shield has a wire hole on its side wall corresponding to the tail of the threaded cylindrical sensor.
5. The combined mounting protective cover for the threaded cylindrical sensor used in unmanned mining trucks according to claim 4, characterized in that, The first protective block, the second protective block, and the omnidirectional shield are connected by connecting bolts. A rubber pad is provided between the omnidirectional shield and the second protective block. The omnidirectional shield is provided with a second elongated hole for the connecting bolt to pass through, and the second elongated hole extends axially along the threaded mounting hole.
6. The combination mounting protector for threaded cylindrical sensors of unmanned mining trucks, according to claim 4, characterized in that, A dustproof plug is provided at the wire hole. The dustproof plug is made of elastic rubber and is located at the tail of the threaded cylindrical sensor. It has a cross-shaped opening in the center for tightly holding the sensor cable.
7. The combined mounting protective cover for the threaded cylindrical sensor used in unmanned mining trucks according to claim 4, characterized in that, When the threaded cylindrical sensor is a photoelectric sensor or a Hall sensor, the omnidirectional shield is made of transparent plastic material.
8. The combination mounting protector for threaded cylindrical sensors of unmanned mining trucks according to claim 4, characterized in that, The omnidirectional shield has a detection hole on its side wall corresponding to the front end of the threaded cylindrical sensor. The detection hole is used for the detection signal of the threaded cylindrical sensor to pass through.
9. The combination mounting protector for threaded cylindrical sensors of unmanned mining trucks according to claim 8, characterized in that, When the threaded cylindrical sensor is a photoelectric sensor, a detection cover made of transparent plastic material is provided at the detection hole.
10. The combination mounting protector for threaded cylindrical sensors of unmanned mining trucks according to any of claims 4-9, characterized in that, The bottom opening edge of the omnidirectional shield is provided with an annular elastic sealing strip. After the omnidirectional shield is installed, the elastic sealing strip is compressed between the omnidirectional shield and the mounting surface of the mounting plate to form a sealing barrier.