Flow seismometer protective cover

Abstract

The utility model discloses a kind of mobile seismograph protective cover, belong to seismic observation equipment technical field, including the cylindrical cover body made of 304 non-magnetic stainless steel, the upper cover of cover body top is composed of upper lid and mounting seat, both are hinged through ultra-narrow edge hinge, and hinge is located cover body top water retaining edge outer side;EVA heat preservation cotton is built-in in cover body, rubber-plastic sponge is installed in upper lid bottom, pressure flaking groove is equipped in the both sides of outlet hole of cover body side, upper lid is also equipped with hinged folding handle and handle, cover body can be fixed on non-magnetic bottom plate according to need, 316 stainless steel steel drill for inserting into soil layer is equipped below non-magnetic bottom plate, horizontal device and annular guard tower are installed on upper surface.The utility model has excellent heat resistance, aging resistance and waterproof, can eliminate magnetic interference, prevent instrument subsidence inclination, maintain cover temperature stability, and convenient operation, convenient to carry, can be fully adapted to field mobile observation scene, effectively guarantee seismograph stable operation and observation data precision.

Description

Technical Field

[0001] This utility model belongs to the technical field of earthquake observation equipment, specifically relating to a protective cover for a mobile seismograph. Background Technology

[0002] As precision instruments, seismographs are easily affected by wind, sun, rain, and terrain conditions when performing mobile seismic observation missions in the field. Traditional protective covers are mostly made of PE material, which has relatively poor heat resistance and is prone to deformation at high temperatures. The operating temperature is generally not recommended to exceed 70℃, limiting its application in high-temperature environments. Furthermore, PE material has limited mechanical strength; compared to some engineering plastics, its hardness and wear resistance are weaker, making it unsuitable for applications requiring significant external forces. Moreover, PE material has insufficient aging resistance; prolonged exposure to sunlight or harsh environments can easily lead to aging and degradation, resulting in performance decline. Field seismographs require frequent checks of their operational status, and traditional protective covers are inconvenient to open and close. Additionally, seismographs require power and network cables to be routed out, and traditional cable routing structures lack waterproofing, allowing rainwater to easily enter the protective cover through the cable outlets. Field observations often require the installation of seismographs in soil environments. Loose soil can cause the seismograph's feet to slowly sink, resulting in instrument tilt and affecting observation accuracy. Furthermore, seismographs are sensitive to magnetic interference, and existing mounting bases lack anti-magnetic design, making them susceptible to magnetic interference that affects observation data. In addition, traditional bases have smooth surfaces, making it easy for the seismograph to slide, and lack convenient leveling devices, making it difficult to ensure that the instrument is installed horizontally.

[0003] In summary, existing technologies cannot meet the requirements of mobile seismographs in the field for protection, stability, anti-interference, and convenient operation. There is an urgent need for a new type of protective cover to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a protective cover for a mobile seismograph, providing a protective structure that is resistant to high temperature, high strength, and aging, so as to prevent the seismograph from being affected by wind, sun, and rain.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: The protective cover for the mobile seismograph includes a 304 non-magnetic stainless steel cover. The cover is cylindrical, with a top cover that is circular and consists of an upper flip cover and a mounting base. The mounting base is fixedly installed on the top of the cover. The upper flip cover is hinged to the mounting base via two sets of ultra-narrow edge hinges. The first hinge piece of the ultra-narrow edge hinge is fixed on the straight edge of the upper flip cover, and the second hinge piece is fixed on the straight edge of the mounting base. A water-retaining edge is provided at the top edge of the cover, and the ultra-narrow edge hinge is located outside the water-retaining edge. A cable outlet hole for leading out the mobile seismograph cable is reserved on the side of the cover.

[0006] The protective cover of this mobile seismograph is structurally designed to meet the needs of mobile field observation. The cylindrical cover provides stable wind, sun, and rain protection for the internal seismograph, meeting the basic protection requirements of complex field environments. The circular top cover consists of a flip-up cover and a mounting base, with the flip-up cover hinged to the mounting base via an ultra-narrow hinge. This design accommodates the circular structure while allowing for smooth opening and closing of the flip-up cover, facilitating quick access for staff to check the seismograph's operational status. A water-retaining edge at the top edge effectively prevents rainwater from seeping in, avoiding damage to the internal mobile seismograph. The hinge, located outside the water-retaining edge, completely blocks rainwater from seeping into the cover through the hinge gaps, significantly improving waterproofing. Pre-drilled cable outlets on the side of the cover are specifically designed for bringing out the seismograph's power cord and network cable, ensuring the stability of external power supply and communication. The overall structure balances ease of operation with enhanced comprehensive protection for the instrument, contributing to the stable operation of the seismograph in complex field environments.

[0007] As a further description of the above technical solution, it also includes a non-magnetic base plate, beneath which are three 316 stainless steel rods for insertion into the soil layer. The mobile seismograph is placed on the non-magnetic base plate, and a cover is placed over it. The non-magnetic base plate effectively avoids magnetic interference, ensuring the accuracy of the seismograph's precise observation data. The cylindrical cover over the non-magnetic base plate provides basic protection for the internal instruments, resisting the effects of wind and debris impacts. The three stainless steel rods for insertion into the soil layer, based on the structural advantage of the three-point support, can be firmly embedded in the soft soil layer, enhancing the coupling stability between the non-magnetic base plate and the soil layer, effectively preventing the base plate and the seismograph above it from sinking due to the soft soil layer, ensuring that the seismograph is always in a horizontal working state, thereby improving observation accuracy. Furthermore, the rods are made of 316 stainless steel, which, due to the addition of Mo, has particularly good corrosion resistance, atmospheric corrosion resistance, and high-temperature strength. The rods also maintain the same non-magnetic properties as the non-magnetic base plate, and will not cause magnetic interference to the seismograph.

[0008] As a further description of the above technical solution, the inner wall of the enclosure is lined with EVA insulation cotton. To meet the requirements for hardness and wear resistance to withstand significant external forces, the outer shell of the enclosure is made of 304 non-magnetic stainless steel, which has poor thermal insulation properties. Lining the inner wall with EVA insulation cotton, with its excellent thermal insulation properties, effectively blocks the effects of diurnal temperature variations and extreme high and low temperatures on the interior of the enclosure, creating a relatively stable temperature environment for the mobile seismograph. This ensures the seismograph's working accuracy under complex temperature conditions and slows down aging and wear caused by drastic temperature changes, further improving the overall protective effect of the protective enclosure and extending the instrument's service life.

[0009] As a further description of the above technical solution, pressure plate grooves for placing pressure plates are provided on the top surface of the cover on both sides of the cable outlet. After the pressure plates are installed in the pressure plate grooves, they can fit more tightly against the gap between the cable outlet and the cable, which not only greatly improves the waterproof sealing at the cable outlet and effectively prevents rainwater from seeping into the inside of the cover along the cable, but also firmly fixes the cable and prevents the cable from loosening or falling off due to external pulling, thus ensuring the stability of the seismograph's external power supply and communication.

[0010] As a further description of the above technical solution, a rubber-plastic sponge is installed at the bottom of the upper cover. This fully utilizes the elasticity and sealing advantages of the rubber-plastic sponge. When the upper cover is closed, the sponge can fit tightly against the top of the cover, effectively filling the gap between the upper cover and the cover, further preventing rainwater, dust and other impurities from seeping into the interior of the cover along the gap, thus enhancing the overall waterproof and dustproof effect. At the same time, the cushioning properties of the rubber-plastic sponge can also alleviate the impact force when the upper cover is closed, avoiding damage to itself or the internal precision seismograph caused by rigid collision between the upper cover and the cover. In addition, the rubber-plastic sponge can also help enhance the heat insulation capacity of the cover, working together with the inner wall EVA insulation to maintain a stable internal temperature, reducing the impact of day-night temperature differences or extreme temperatures on the seismograph's operating status, and creating a better operating environment for the instrument.

[0011] As a further description of the above technical solution, a handle is installed on the upper flip cover via two handle bases, and the handle is hinged between the two handle bases. When not in use, the handle can be folded flat and fitted onto the upper flip cover, without taking up additional space for field deployment or storage; when it needs to be moved, it can also be easily lifted, meeting the needs of single-person carrying of protective covers in mobile field observation, and further satisfying the portability requirements of field operations.

[0012] As a further description of the above technical solution, a handle is also provided on the upper cover. The handle is located on the edge away from the first leaf of the hinge. The handle is preferably a spring-loaded, double-opening, embedded concealed handle, which not only makes it convenient for staff to open the upper cover with one hand to check the status of the seismograph, but also avoids the handle protruding and scratching the debris in the field because of the spring-loaded, double-opening, embedded concealed handle. In addition, the spring-loaded structure can keep the surface of the upper cover flat after the handle is reset, without affecting the overall protective performance and portability of the protective cover.

[0013] As a further description of the above technical solution, a leveling device is installed on the upper surface of the non-magnetic base plate, and a ring-shaped protective platform is provided around the leveling device. The leveling device is used to provide feedback on the level status of the non-magnetic base plate, allowing staff to quickly adjust the base plate to a level position in the field soil environment, ensuring that the seismograph is in a stable working posture to improve observation accuracy; the ring-shaped protective platform is used to physically isolate and prevent the seismograph from squeezing the leveling device, thus protecting the leveling device.

[0014] This protective cover for the mobile seismograph is primarily used to shield the seismograph, providing protection against wind, sun, rain, and heat. Since the mobile seismograph is deployed in the field and its operational status needs to be checked periodically, a top-opening design was incorporated to facilitate quick access and inspection. However, this top-opening design necessitates the use of hinges. Because the cover is cylindrical, the hinges can only be installed on a horizontal surface. The area available for the hinges outside the water-resistant edge is small (less than 15 mm), so excess hinge edges need to be trimmed to ensure a circular shape and installation within 15 mm. To ensure the strength of the top-opening cover, two ultra-narrow edge hinge pieces are installed, and two additional ultra-narrow edge hinge pieces are installed at corresponding positions on the mounting base. Furthermore, the hinge installation positions are designed outside the water-resistant edge, preventing rainwater from entering the protective cover even if it flows in along the hinges.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This utility model's mobile seismograph protective cover abandons PE material, which has poor heat resistance, low mechanical strength, and insufficient aging resistance. Instead, it uses 304 non-magnetic stainless steel for the outer shell, combined with EVA insulation for the inner wall. This improves the protective cover's weather resistance and structural stability in high-temperature and harsh outdoor environments, while maintaining stable internal temperature to prevent temperature differences from affecting the seismograph's accuracy. Addressing the difficulties in fitting the circular cover's hinges and the problem of rainwater infiltration, an ultra-narrow hinge is selected and installed on the outer side of the water-blocking edge. This solves the compatibility problem of the lack of circular hinges on the market and prevents rainwater from entering through the hinge gaps. Simultaneously, the top-flipping structure, combined with the hinge-free design... The spring-loaded, double-opening, embedded concealed handles facilitate quick opening and inspection of the instrument. The side cable outlet allows for stable routing of power and network cables, while the pressure plate in the pressure plate groove secures the cables and enhances waterproofing. The non-magnetic base plate uses three 316 stainless steel rods to strengthen its coupling with the soil, preventing the instrument from sinking. The leveling device facilitates leveling, and the ring-shaped protective platform protects the leveling device from compression. This design ensures the base plate is installed horizontally to maintain the seismograph's accuracy, eliminates magnetic interference, and features a folding handle for improved portability. It comprehensively addresses the shortcomings of traditional protective covers in terms of protection, operation, and installation stability, making it more suitable for mobile seismic observation needs in the field. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the protective cover of the mobile seismograph in Embodiment 1.

[0017] Figure 2 This is a schematic diagram of the structure of the cover in Embodiment 1.

[0018] Figure 3 This is a schematic diagram of the upper flip cover in Embodiment 1.

[0019] Figure 4 yes Figure 3 Side view.

[0020] Figure 5 This is a schematic diagram of the mounting base in Embodiment 1.

[0021] Figure 6 This is a schematic diagram of the non-magnetic base plate in Embodiment 2.

[0022] Figure 7 This is a schematic diagram of the overall structure of the protective cover for the mobile seismograph in Embodiment 2.

[0023] Figure label: 10-Non-magnetic base plate; 11-Steel rod; 12-Horizontal device; 13-Annular protective platform; 20-Cover body; 21-Cable outlet; 22-Pressure plate groove; 23-Water-blocking edge; 30-Upper flip cover; 31-First hinge piece; 32-Handle; 33-Handle base; 34-Handle handle; 35-Rubber and plastic sponge; 40-Mounting base; 41-Second hinge piece. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments. 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 skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Example 1 Protective cover for mobile seismographs, such as Figures 1-5 As shown, the enclosure 20 provides stable wind, sun, and rain protection for the internal seismograph. The enclosure 20 is cylindrical, with an outer shell made of 304 non-magnetic stainless steel and an inner wall lined with EVA insulation. Its excellent thermal insulation properties effectively block the effects of diurnal temperature variations and extreme high and low temperatures on the interior of the enclosure, creating a relatively stable temperature environment for the mobile seismograph. A water-resistant edge 23 is provided at the top edge of the enclosure 20 to effectively prevent rainwater from seeping in and avoid damage to the internal mobile seismograph due to rainwater intrusion. The sides of the enclosure 20... The cover has a pre-drilled outlet hole 21 for leading out the power cord and network cable of the seismograph, ensuring the stability of external power supply and communication. The top surface of the cover on both sides of the outlet hole 21 is provided with a pressure plate groove 22 for placing the pressure plate. After the pressure plate is installed in the pressure plate groove 22, it can fit more tightly against the gap between the outlet hole 21 and the cable, which not only greatly improves the waterproof sealing of the outlet hole 21 and effectively prevents rainwater from seeping into the interior of the cover 20 along the cable, but also firmly fixes the cable and prevents the cable from loosening or falling off due to external pulling, thus ensuring the stability of external power supply and communication of the seismograph.

[0026] The top of the cover 20 is equipped with a top cover, which is circular and consists of a flip-up cover 30 with a small arc cross-section and a mounting base 40 with a large arc cross-section. The mounting base 40 is fixedly installed on the top of the cover 20. The flip-up cover 30 is hinged to the mounting base 40 by two sets of ultra-narrow edge hinges, which adapt to the circular structure and enable the flip-up cover 30 to open and close smoothly, making it convenient for staff to quickly open and check the working status of the seismograph. The first hinge piece 31 of the ultra-narrow edge hinge is fixed on the straight edge of the flip-up cover 30, and the second hinge piece 41 is fixed on the straight edge of the mounting base 40. The ultra-narrow edge hinge is located outside the water-blocking edge 23, which completely blocks the path of rainwater to seep into the interior of the cover 20 along the hinge gap, greatly improving the waterproof performance. A handle 32 is mounted on the upper flip cover 30 via two handle bases 33. The handle 32 is hinged between the two handle bases 33. When not in use, the handle 32 can be folded flat and fitted onto the upper flip cover 30, without taking up additional space for field deployment or storage. It can also be easily lifted when needed for transport. The upper flip cover 30 is also provided with a pull handle 34, which is located on the edge away from the first hinge leaf 31. The pull handle 34 is a spring-loaded, double-opening, recessed handle, which not only makes it convenient for staff to open the upper flip cover 30 with one hand to check the status of the seismograph, but also avoids the handle protruding and scratching the field debris due to the spring-loaded, double-opening, recessed handle. The spring-loaded structure also ensures that the surface of the upper flip cover remains flat after the handle returns to its original position, without affecting the overall protective performance and portability of the protective cover. The bottom of the upper cover 30 is fitted with a rubber-plastic sponge 35, which can fully utilize the elasticity and sealing advantages of the rubber-plastic sponge 35. When the upper cover 30 is closed, the rubber-plastic sponge 35 can fit tightly against the top of the cover 20, effectively filling the gap between the upper cover 30 and the cover 20, further preventing rainwater, dust and other impurities from seeping into the interior of the cover 20 along the gap. At the same time, the cushioning properties of the rubber-plastic sponge 35 can also alleviate the impact force when the upper cover 30 is closed, avoiding damage to itself or the internal precision seismograph caused by rigid collision between the upper cover 30 and the cover 20. In addition, the rubber-plastic sponge 35 can also help enhance the heat insulation capacity of the cover 20, working together with the inner wall EVA insulation cotton to maintain a stable internal temperature, reducing the impact of day and night temperature differences or extreme temperatures on the seismograph's working status, and creating a better operating environment for the instrument.

[0027] Example 2 like Figures 6-7As shown, the difference between this embodiment and Embodiment 1 is that it also includes a non-magnetic base plate 10, with the cover 20 placed on top of the non-magnetic base plate 10. When used in field soil environments, the seismograph needs to be leveled after installation to function properly. Field seismic mobile observations often require the installation of seismographs on soil. Due to the soft soil, the weight of the seismograph itself can cause its feet to gradually sink into the soil, resulting in the seismograph not being level and affecting the observation quality. Therefore, a non-magnetic base plate 10 is added to the bottom of the cover 20. In soil observation environments, to ensure a secure coupling between the non-magnetic base plate 10 and the soil, three 316 stainless steel rods 11 are installed at the bottom of the non-magnetic base plate 10. These rods 11 can be driven into the soil to stabilize the base plate. Since the rods 11 need to be inserted into the soil, 316 stainless steel is used to prevent corrosion. Because 316 stainless steel contains molybdenum (Mo), it has excellent corrosion resistance, atmospheric corrosion resistance, and high-temperature strength, allowing it to be used under harsh conditions. In addition, a leveling device 12 is installed on the upper surface of the non-magnetic base plate 10 to provide feedback on the level status of the base plate, making it convenient for staff to quickly adjust the base plate to a level position in the field soil environment. A ring-shaped protective platform 13 is provided around the leveling device 12 to prevent the seismograph from squeezing the leveling device 12 through physical isolation and to protect the leveling device 12. In order to prevent the seismograph from sliding on the base plate, the surface of the ring-shaped protective platform 13 is also treated with anti-slip treatment.

[0028] The above description is merely the preferred embodiment of this utility model. It should be noted that, for those skilled in the art, various modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from its principles, and these modifications or substitutions can also achieve the technical effects of this utility model, and should also be considered within the protection scope of this utility model.

Claims

1. A protective cover for a mobile seismograph, characterized in that: The cover (20) is made of 304 non-magnetic stainless steel. The cover (20) is cylindrical and has a top cover. The top cover is circular and consists of an upper flip cover (30) and a mounting base (40). The mounting base (40) is fixedly installed on the top of the cover (20). The upper flip cover (30) is hinged to the mounting base (40) by two sets of ultra-narrow edge hinges. The first hinge piece (31) of the ultra-narrow edge hinge is fixed on the straight edge of the upper flip cover (30), and the second hinge piece (41) is fixed on the straight edge of the mounting base (40). The top edge of the cover (20) is provided with a water-blocking edge (23). The ultra-narrow edge hinge is located outside the water-blocking edge (23). The side of the cover (20) is reserved with a cable outlet hole (21) for leading out the cable of the mobile seismograph.

2. The protective cover for the mobile seismograph according to claim 1, characterized in that: It also includes a non-magnetic base plate (10), under which are three 316 stainless steel rods (11) for insertion into the soil layer. The mobile seismograph is placed on the non-magnetic base plate (10), and the cover (20) covers the non-magnetic base plate (10).

3. The protective cover for the mobile seismograph according to claim 1 or 2, characterized in that: The inner wall of the cover (20) is covered with EVA insulation cotton.

4. The protective cover for the mobile seismograph according to claim 3, characterized in that: The bottom of the flip cover (30) is fitted with a rubber and plastic sponge (35).

5. The protective cover for a mobile seismograph according to claim 1 or 2, characterized in that: The top surface of the cover on both sides of the outlet hole (21) is provided with a pressing groove (22) for placing the pressing plate.

6. The protective cover for a mobile seismograph according to claim 1 or 2, characterized in that: A handle (32) is mounted on the upper flip cover (30) via two handle bases (33), and the handle (32) is hinged between the two handle bases (33).

7. The protective cover for a mobile seismograph according to claim 1 or 2, characterized in that: The upper cover (30) is also provided with a handle (34), which is located on the edge of the side away from the first hinge piece (31).

8. The protective cover for the mobile seismograph according to claim 7, characterized in that: The handle (34) is a spring-loaded double-opening embedded concealed handle.

9. The protective cover for the mobile seismograph according to claim 2, characterized in that: A horizontal device (12) is installed on the upper surface of the non-magnetic base plate (10), and an annular protective platform (13) is provided around the horizontal device (12).

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