Heat preservation cover special for long-baseline DSQ water pipe inclination observation system in seismic observation cave

Abstract

The utility model relates to a heat preservation cover special for a long-baseline DSQ water pipe inclination observation system in a seismological observation cave, and belongs to the technical field of seismological observation system protection equipment. According to the cover body, the shell is made of the double-layer anti-static ABS engineering plastics, the polyurethane foam is filled in the interlayer to form the efficient heat insulation layer, and the corrugated heat preservation tin foil paper is wrapped outside the cover body to form the composite heat insulation barrier, so that the influence of external temperature fluctuation on an instrument is effectively blocked; interference of day and night temperature difference on sensitive elements of the water pipe inclinometer is greatly reduced, stability and accuracy of monitoring data are guaranteed, moisture can be effectively prevented from entering the cover body or gas in the cover body can be effectively prevented from leaking through the silica gel sealing strip embedded in the bottom of the cover body and the elastic connecting sleeve in the cable threading hole, the sealing effect is improved, and the service life of the water pipe inclinometer is prolonged. Meanwhile, the cover body can be quickly disassembled and assembled through the locking mechanism, operation is easy and convenient, and efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the technical field of protective equipment for earthquake observation systems, specifically relating to a heat insulation cover for a long-baseline DSQ water pipe inclined observation system in earthquake observation caves. Background Technology

[0002] In recent years, the DSQ water-tube tiltmeter, as a core device for high-precision crustal deformation observation, has played a crucial role in earthquake precursor monitoring. Its working principle relies on monitoring minute changes in the liquid level within the water tube, making it extremely sensitive to external temperature fluctuations, air humidity, and mechanical interference. Earthquake observation caves, as typical semi-enclosed environments, while possessing natural insulation properties, still experience diurnal temperature variations and water seepage from the cave walls, posing stringent requirements for the environmental stability of the observation system.

[0003] Currently, the protection of the observation system is simply achieved by using some glass or plexiglass covers. However, these covers have problems such as poor heat insulation and inadequate sealing, which allows external moisture to easily enter the inside of the cover through the wiring holes or gaps in the contact surfaces, thus affecting the monitoring data of the observation system. In addition, most heat insulation covers are fixed with bolts, which makes disassembly and assembly cumbersome and inconvenient to use. Utility Model Content

[0004] To overcome the shortcomings of existing technologies where observation systems are simply protected with glass or plexiglass covers, resulting in poor insulation and inadequate sealing, allowing external moisture to easily enter the cover through wiring holes or gaps in the contact surfaces, thus affecting the monitoring data, and because most insulation covers are fixed with bolts, making disassembly and assembly cumbersome and inconvenient, this invention provides an insulation cover specifically designed for long-baseline DSQ water pipe inclined observation systems inside seismic observation tunnels. The cover body is constructed with a double-layer anti-static ABS engineering plastic outer shell, with polyurethane filling the interlayer. Ester foam forms a highly efficient heat insulation layer, and corrugated heat-insulating tin foil is wrapped around the outside of the cover to form a composite heat insulation barrier, thereby effectively blocking the influence of external temperature fluctuations on the instrument. Compared with traditional glass covers, it significantly reduces the interference of day and night temperature differences on the sensitive elements of the water pipe inclinometer, ensuring the stability and accuracy of monitoring data. In addition, the silicone sealing strip embedded at the bottom of the cover and the elastic connecting sleeve in the cable hole can effectively prevent moisture from entering the inside of the cover or gas leakage inside the cover, improving the sealing effect. At the same time, the locking mechanism can realize the quick assembly and disassembly of the cover, which is simple and efficient to operate.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A thermal insulation cover specifically designed for a long-baseline DSQ water pipe tilt observation system inside an earthquake observation tunnel mainly includes a base, a cover body, and a locking mechanism. The base is made of ABS engineering plastic and processed into a rectangular frame structure. A rectangular base plate is embedded in a square concrete pier on the inner side of the base. A positioning frame is provided at the top of the base. Cable threading holes are provided on the side walls of the base. Elastic connecting sleeves for fixing cables are provided in the cable threading holes. Support blocks are provided on both sides of the base. Locking mechanisms are installed on the support blocks. A silicone sealing strip with an I-shaped cross section is embedded at the bottom of the cover body. The cover body is snapped onto the positioning frame and fixed to the base by a locking mechanism that can be quickly disassembled and assembled. The inner and outer walls of the cover body are made of anti-static ABS engineering plastic, and a cavity sandwich is formed between the inner and outer walls. The cavity sandwich is filled with a polyurethane foam layer for thermal insulation. The entire exterior of the cover body is covered with corrugated thermal insulation foil.

[0006] The locking mechanism includes a U-shaped connecting block, a connecting rod, a handle, a support rod, a pressure roller, and a positioning knob. The connecting block is provided on the side wall of the cover, and a rectangular limiting groove with a gradually changing bottom height is opened on the connecting block. The bottom end of the connecting rod is threaded to the support block, and a support rod is provided radially in the middle. A pressure roller that rolls in contact with the bottom surface of the rectangular limiting groove is installed on the support rod. A handle that is easy to rotate is horizontally installed at the top of the connecting rod. A positioning hole is opened axially on the support rod, and a positioning knob that mates with the positioning hole is threaded to the side wall of the U-shaped connecting block.

[0007] The axis of the cable threading hole is inclined at a 45° angle to the horizontal plane, with the outer side lower than the inner side.

[0008] The cover is provided with a handle on its side wall.

[0009] The beneficial effects of this utility model are:

[0010] The cover of this utility model is made of double-layer anti-static ABS engineering plastic, with polyurethane foam filling the interlayer to form a high-efficiency heat insulation layer. The outside of the cover is covered with corrugated heat-insulating tin foil to form a composite heat insulation barrier, thereby effectively blocking the influence of external temperature fluctuations on the instrument. Compared with the traditional glass cover, it significantly reduces the interference of day and night temperature differences on the sensitive elements of the water pipe inclinometer, ensuring the stability and accuracy of monitoring data. In addition, the silicone sealing strip embedded at the bottom of the cover and the elastic connecting sleeve in the cable hole can effectively prevent moisture from entering the inside of the cover or gas leakage inside the cover, improving the sealing effect. At the same time, the locking mechanism can realize quick disassembly and assembly of the cover, which is simple and efficient to operate. Attached Figure Description

[0011] Figure 1 This is the isometric drawing of this utility model.

[0012] Figure 2 This is a three-dimensional schematic diagram of the cover in its closed state.

[0013] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0014] Figure 4 This is a 3D schematic diagram of the cover in the open state.

[0015] Figure 5 This is a magnified view of section B in diagram 4.

[0016] Figure 6 This is a three-dimensional cross-sectional view of the U-shaped connecting block. Detailed Implementation

[0017] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0018] This utility model discloses a heat insulation cover specifically designed for a long-baseline DSQ water pipe inclined observation system inside a seismic observation tunnel. The heat insulation cover mainly includes a base 1, a cover body 2, and a locking mechanism 3. The base 1 is made of ABS engineering plastic and formed into a rectangular frame structure. A rectangular base plate 101 is embedded in a square concrete pier on the inner side of the base 1. A positioning frame 103 is provided at the top of the base 1. Cable insertion holes are provided on the side walls of the base 1, and elastic connecting sleeves 102 for fixing cables are provided in the cable insertion holes. Support blocks 104 are provided on both sides of the base 1, and the locking mechanism 3 is installed on the support blocks 104. A silicone sealing strip with an I-shaped cross-section is embedded at the bottom of the cover body 2. The cover body 2 is snapped onto the positioning frame 103 and fixed to the base 1 by the quick-release locking mechanism 3. The inner and outer walls of the cover body 2 are made of anti-static material. The cover 2 is made of ABS engineering plastic, with a cavity sandwiched between the inner and outer walls. The cavity sandwich is filled with a polyurethane foam layer for heat insulation. The entire exterior of the cover 2 is covered with corrugated heat-insulating tin foil. The locking mechanism 3 includes a U-shaped connecting block 301, a connecting rod 302, a handle 303, a support rod 304, a pressure roller 305, and a positioning knob 306. The connecting block 301 is provided on the side wall of the cover 2. The connecting block 301 has a rectangular limiting groove 3011 with a gradually changing bottom height. The bottom end of the connecting rod 302 is threaded to the support block 104. The support rod 304 is radially arranged in the middle. The pressure roller 305 is installed on the support rod 304 and rolls in contact with the bottom surface of the rectangular limiting groove 3011. The top of the connecting rod 302 is horizontally mounted with a handle 303 for easy rotation. The support rod 304 has a positioning hole along the axial direction. The U-shaped connecting block 301 is threaded to the side wall and has a positioning knob 306 that mates with the positioning hole.

[0019] The base 1 is rigidly fixed by a rectangular base plate 101 pre-embedded in a square concrete pier, ensuring overall stability and sealing. The cable is threaded through the cable threading hole. During insertion, the cable is wrapped and secured to the threading hole by the elastic connecting sleeve 102, forming a sealed barrier to prevent moisture from seeping into the enclosure 2 through the cable gaps. Next, the positioning frame 103 provides an alignment reference for the enclosure 2, which is then placed on the base. The operator rotates the handle 303, causing the connecting rod 302 to rotate 90 degrees. This causes the pressure roller 305 on the support rod 304 to roll along the rectangular limiting groove 3011, which has a gradually changing height within the U-shaped connecting block 301. Because the bottom surface of the rectangular limiting groove 3011 is sloped, the pressure roller 305 generates downward pressure as it rotates, pressing the silicone sealing strip embedded at the bottom of the enclosure 2 against the top surface of the base 1 to achieve the preset sealing pressure. When the pressure roller 305 reaches the highest point of the rectangular limiting groove 3011, the positioning knob 306 is rotated to insert it into the axial positioning hole of the support rod 304. The position of the fixed pressure roller 305 is prevented from being accidentally loosened. During disassembly, simply rotate the handle 303 in the opposite direction to move the pressure roller 305 upward along the rectangular limiting groove 3011, releasing the pressure on the cover 2, and the cover 2 can be separated from the base 1. No tools are required, making the operation simple and efficient. The cover of this utility model adopts an anti-static ABS engineering plastic sandwich structure, with a polyurethane foam layer filled in the cavity and corrugated heat-insulating tin foil wrapped on the outside of the cover to form a composite heat insulation barrier, effectively blocking the influence of external temperature fluctuations on the instrument. Compared with the traditional single-layer glass cover, it significantly reduces the interference of day and night temperature differences on the sensitive elements of the water pipe inclinometer, ensuring the stability and accuracy of monitoring data. At the same time, the silicone sealing strip embedded at the bottom of the cover and the elastic connecting sleeve in the cable hole can effectively prevent moisture from entering the inside of the cover or gas leakage inside the cover, improving the sealing effect of the device.

[0020] The axis of the cable threading hole is inclined at a 45° angle to the horizontal plane, with the outer side lower than the inner side; this can prevent water droplets from flowing into the inside of the cover 2 along the cable.

[0021] The cover 2 is provided with a handle 201 on its side wall; this makes it convenient for operators to lift and move the cover 2.

[0022] Work process:

[0023] The base 1 is rigidly fixed by a rectangular base plate 101 pre-embedded in a square concrete pier, ensuring overall stability and sealing. The cable is threaded through the cable threading hole. During insertion, the cable is wrapped and secured to the threading hole by the elastic connecting sleeve 102, forming a sealed barrier to prevent moisture from seeping into the enclosure 2 through the cable gaps. Next, the positioning frame 103 provides an alignment reference for the enclosure 2, which is then placed on the base. The operator rotates the handle 303, causing the connecting rod 302 to rotate 90 degrees. This causes the pressure roller 305 on the support rod 304 to roll along the rectangular limiting groove 3011, which has a gradually changing height within the U-shaped connecting block 301. Because the bottom surface of the rectangular limiting groove 3011 is sloped, the pressure roller 305 generates downward pressure as it rotates, pressing the silicone sealing strip embedded at the bottom of the enclosure 2 against the top surface of the base 1 to achieve the preset sealing pressure. When the pressure roller 305 reaches the highest point of the rectangular limiting groove 3011, the positioning knob 306 is rotated to insert it into the axial positioning hole of the support rod 304. The position of the fixed pressure roller 305 is prevented from being accidentally loosened. During disassembly, simply rotate the handle 303 in the opposite direction to move the pressure roller 305 upward along the rectangular limiting groove 3011, releasing the pressure on the cover 2, and the cover 2 can be separated from the base 1. No tools are required, making the operation simple and efficient. The cover of this utility model adopts an anti-static ABS engineering plastic sandwich structure, with a polyurethane foam layer filled in the cavity and corrugated heat-insulating tin foil wrapped on the outside of the cover to form a composite heat insulation barrier, effectively blocking the influence of external temperature fluctuations on the instrument. Compared with the traditional single-layer glass cover, it significantly reduces the interference of day and night temperature differences on the sensitive elements of the water pipe inclinometer, ensuring the stability and accuracy of monitoring data. At the same time, the silicone sealing strip embedded at the bottom of the cover and the elastic connecting sleeve in the cable hole can effectively prevent moisture from entering the inside of the cover or gas leakage inside the cover, improving the sealing effect of the device.

[0024] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A heat insulation cover specifically designed for a long-baseline DSQ water pipe tilt observation system inside a seismic observation cave, characterized in that: The heat preservation cover special for the long base line DSQ water pipe tilt observation system in the earthquake observation cave comprises a base (1), a cover body (2) and a locking mechanism (3), the base (1) is made of ABS engineering plastic into a rectangular frame structure, a rectangular bottom plate (101) embedded in a square concrete pier is arranged on the inner side of the base (1), a positioning frame (103) is arranged on the top end of the base (1), a cable threading hole is arranged on the side wall of the base (1), an elastic connecting sleeve (102) for fixing the cable is arranged in the cable threading hole, support blocks (104) are arranged on both sides of the base (1), the locking mechanism (3) is installed on the support blocks (104), a silica gel sealing strip with an I-shaped cross section is embedded at the bottom of the cover body (2), the cover body (2) is clamped on the positioning frame (103) and fixed on the base (1) through the locking mechanism (3) which can be quickly disassembled and assembled; the inner wall and the outer wall of the cover body (2) are made of anti-static ABS engineering plastic, a cavity interlayer is formed between the inner wall and the outer wall, a polyurethane foam layer for heat preservation is filled in the cavity interlayer, and corrugated heat preservation tin foil paper is entirely wrapped outside the cover body (2).

2. The heat preservation cover specially used for the long base line DSQ water pipe tilt observation system in the seismic observation cave according to claim 1, characterized in that: The locking mechanism (3) comprises a U-shaped connecting block (301), a connecting rod (302), a handle (303), a support rod (304), a pressing wheel (305) and a positioning knob (306), the connecting block (301) is arranged on the side wall of the cover body (2), a rectangular limiting groove (3011) with a gradually changed bottom height is formed in the connecting block (301), the bottom end of the connecting rod (302) is threadedly connected with the support block (104), the support rod (304) is arranged on the connecting rod (302) in the radial direction, the pressing wheel (305) in rolling contact with the bottom surface of the rectangular limiting groove (3011) is installed on the support rod (304), the handle (303) facilitating rotation is horizontally installed on the top end of the connecting rod (302), the positioning hole is formed in the support rod (304) in the axial direction, and the positioning knob (306) is threadedly connected with the side wall of the U-shaped connecting block (301) and is in butt joint with the positioning hole.

3. The heat preservation cover specially used for the long base line DSQ water pipe tilt observation system in the earthquake observation cave according to claim 1, characterized in that: The axis of the cable threading hole is inclined at an angle of 45° from the horizontal plane, and the inner part is higher than the outer part.

4. The heat preservation cover for long base line DSQ water pipe tilt observation system in the earthquake observation cave of claim 1 or 2, characterized in that: A handle (201) is arranged on the side wall of the cover body (2).

Images