Double half-ring type anti-settling buried protection device
By using a double semi-ring design and vent holes, the problems of poor anti-settlement effect and complicated installation of existing devices are solved, achieving stable installation, improving detection accuracy and simplifying the installation process, while enhancing the device's pressure resistance and cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HANWEI ELECTRONICS
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-14
AI Technical Summary
Existing underground protection devices for gas detectors have poor anti-settlement effects and are complex to install, making them difficult to fix stably on motor vehicle roads and unable to meet high pressure requirements.
It adopts a double semi-ring design. The upper end of the buried cylinder is formed into a detection cylinder section, and the outer circumference of the clamp is formed into an anti-settlement semi-ring. It is fixed underground by clamping. The buried cylinder is equipped with ventilation holes, and a bottom dustproof net cylinder is fitted on the cylinder body. The clamp is made of sheet metal or injection molded parts, and the bolt connection achieves stability and convenient disassembly.
It enhances the pressure resistance of the device, prevents sedimentation, improves the accuracy of gas detection and ease of installation, reduces manufacturing difficulty, and ensures internal cleanliness and permeability.
Smart Images

Figure CN224492216U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of underground detection facilities, specifically to a double semi-ring type anti-settlement underground protection device. Background Technology
[0002] With the increasing variety of underground gas pipelines in cities, gas detectors used for leak detection generally require underground installation and easy maintenance. Therefore, underground protection devices suitable for gas detector installation have emerged. However, gas detection points are sometimes located on road surfaces with vehicular traffic, placing higher demands on the installation of underground protection devices. These surfaces have complex vehicle traffic, requiring the devices to have sufficient pressure resistance to prevent settlement. Existing products have poor anti-settlement performance and are complex to install. Summary of the Invention
[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a double semi-ring type anti-settlement underground protection device.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a double-half-ring type anti-settlement buried protection device, comprising a buried cylinder, a buried cover, and two clamps; the buried cylinder is a cylindrical tube that is open at both ends, and the upper end of the buried cylinder is integrally formed with a detection cylinder section for internal installation and protection of a gas detector; the buried cover is detachably installed on the upper end of the detection cylinder section to seal the upper port of the detection cylinder section so as to protect the gas detector when buried; the two clamps are detachably connected together and tightly clamped on the outer circumference of the detection cylinder section; the outer circumference of the clamps is integrally formed with an anti-settlement half-ring, and the two anti-settlement half-rings form a complete circular anti-settlement ring.
[0005] Based on the above, the outer circumference of the detection cylinder section is provided with an annular groove, and a number of circumferentially arranged locking blocks are provided in the annular groove; the inner circle of the clamp is integrally formed with a semi-annular protrusion, and the semi-annular protrusion is provided with a number of locking grooves; when the two clamps are tightly clamped on the outer circumference of the detection cylinder section, the two semi-annular protrusions are matched and embedded into the annular groove, and each locking groove is respectively engaged with each locking block.
[0006] Based on the above, several ventilation holes are evenly distributed on the body of the underground cylinder.
[0007] Based on the above, it also includes a bottom dustproof net cylinder, which is fitted onto the body of the underground cylinder from bottom to top and is detachably and fixedly connected to the body of the underground cylinder.
[0008] Based on the above, the upper end of the bottom dustproof net cylinder is integrally formed with a connecting ring. The outer circumference of the connecting ring is provided with a plurality of first bolt through holes arranged in a radial array. First fastening bolts are installed in the first bolt through holes. The upper end of the underground cylinder is provided with a plurality of first threaded connection holes. When the bottom dustproof net cylinder is fitted onto the underground cylinder from bottom to top, each of the first threaded connection holes corresponds one-to-one with each of the first bolt through holes. The inner ends of each of the first fastening bolts can be screwed into each of the first threaded connection holes respectively, so that the bottom dustproof net cylinder is fixedly connected to the underground cylinder.
[0009] Based on the above, a number of stiffening plates are connected between the outer circumference of the clamp and the upper side of the anti-settlement semi-ring.
[0010] Based on the above, the clamp is a sheet metal part made by bending and welding or an injection molded part made by injection molding.
[0011] Based on the above, one end of the clamp is provided with a second bolt through hole and the other end is provided with a second threaded connection hole. A second fastening bolt is installed in the second bolt through hole. When the two clamps are tightly clamped on the outer circumference of the detection cylinder section, the two clamps are mated together, and the second bolt through hole on the first clamp corresponds to the second threaded connection hole on the second clamp. The second fastening bolt on the first clamp is threadedly connected to the second threaded connection hole on the second clamp. The second bolt through hole on the second clamp corresponds to the second threaded connection hole on the first clamp. The second fastening bolt on the second clamp is threadedly connected to the second threaded connection hole on the first clamp. The two clamps are fixedly connected by two second fastening bolts.
[0012] Based on the above, the underground cover is provided with a number of bolt countersunk holes, and the upper end face of the detection cylinder is provided with a number of threaded blind holes. Each bolt countersunk hole corresponds to each threaded blind hole. A countersunk bolt is installed in the bolt countersunk hole, and the inner end thread of the countersunk bolt is connected to the corresponding threaded blind hole.
[0013] This utility model has substantial features and advancements compared to existing technologies. Specifically, the upper end of the buried cylinder of this utility model is integrally formed with a detection cylinder section for the internal installation and protection of a gas detector. Two clamps are used to hold the outer circumference of the detection cylinder section. An anti-settlement semi-ring is integrally formed on the outer circumference of each clamp. The two anti-settlement semi-rings form a complete circular anti-settlement ring. The buried cylinder, through these two anti-settlement semi-rings, effectively increases the reliability of its contact with the ground, allowing it to be stably fixed in the ground, enhancing the pressure-bearing capacity of the buried protection device, and preventing settlement. Furthermore, the design of the two clamps effectively reduces the installation difficulty of the entire device. Several vent holes are evenly distributed on the cylinder body, increasing its permeability and facilitating gas entry, thus enhancing the accuracy and effectiveness of the gas detector. Simultaneously, a bottomed dustproof mesh is fitted onto the cylinder body, ensuring both permeability and preventing sand and gravel from entering the interior, thus maintaining the cleanliness of the buried cylinder's interior. The clamp is a sheet metal part manufactured by bending and welding or an injection molded part manufactured by injection molding, which reduces manufacturing difficulty and improves the product's economic efficiency. Several stiffening plates connect the outer circumference of the clamp to the upper side of the anti-settlement semi-ring, increasing the structural strength between the clamp and the anti-settlement semi-ring and effectively preventing the underground protection device from rotating after backfilling. The underground cover can be fixed to the upper end of the detection cylinder section by several countersunk bolts, making disassembly convenient. When the gas detector needs maintenance, the underground cover can be removed to retrieve the gas detector quickly and easily. Attached Figure Description
[0014] Figure 1 This is an exploded view of the structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the assembly structure of this utility model.
[0016] Figure 3 This is a cross-sectional view of the present invention.
[0017] Figure 4 This is a schematic diagram of the clamp structure of this utility model.
[0018] Figure 5 This is a schematic diagram of the connection between the two clamps of this utility model.
[0019] Figure 6 yes Figure 1 A magnified view of a portion of point A in the middle.
[0020] Figure 7 This is a schematic diagram of the present invention installed on a motor vehicle road surface.
[0021] In the diagram: 1. Underground cylinder; 2. Underground cover; 3. Dustproof net cylinder with bottom; 4. Clamp; 5. Gas detector; 6. Detection cylinder section; 7. Anti-settlement semi-ring; 8. Ventilation hole; 9. Annular groove; 10. Locking block; 11. Semi-annular protrusion; 12. Locking groove; 13. Connecting ring; 14. First fastening bolt; 15. Rib plate; 16. Second bolt through hole; 17. Second threaded connection hole; 18. Second fastening bolt; 19. Countersunk bolt; 20. Hardened road surface; 21. Earth; 22. Hardened backfill; 23. Underground protection device. Detailed Implementation
[0022] The technical solution of this utility model will be further described in detail below through specific embodiments.
[0023] like Figures 1-6 As shown, a double-half-ring type anti-settlement buried protection device includes a buried cylinder 1, a buried top cover 2, a bottom dustproof net cylinder 3, and two clamps 4. The buried cylinder 1 is a cylindrical tube that is open at both ends. The upper end of the buried cylinder 1 is integrally formed with a detection cylinder section 6 for internal installation and protection of a gas detector 5. The buried top cover 2 is detachably installed on the upper end of the detection cylinder section 6 to seal the upper port of the detection cylinder section 6, so as to protect the gas detector 5 when buried. The two clamps 4 are detachably connected together and tightly hug the outer circumference of the detection cylinder section 6, making installation simple. The outer circumference of the clamps 4 is integrally formed with an anti-settlement half-ring 7. The two anti-settlement half-rings 7 form a complete circular anti-settlement ring, thus protecting the buried cylinder. The two anti-settlement semi-rings 7 of the underground cylinder 1 can effectively increase the reliability of contact with the ground, so that the underground cylinder 1 can be stably fixed in the ground, which enhances the pressure bearing capacity of the underground protection device 23 and avoids settlement. The underground cylinder 1 has several vent holes 8 evenly opened on its body, which can increase the air permeability of the underground cylinder 1, which is conducive to the gas entering the underground cylinder 1 and enhances the detection accuracy and effectiveness of the gas detector 5. The bottom dustproof net cylinder 3 is fitted on the underground cylinder 1 from bottom to top and is detachably fixed to the underground cylinder 1, which can not only ensure the air permeability of the underground cylinder 1, but also prevent sand and gravel from entering the underground cylinder 1, thus ensuring the cleanliness of the inside of the underground cylinder 1.
[0024] In this embodiment, the outer circumference of the detection cylinder segment 6 is provided with an annular groove 9, and a plurality of circumferentially arranged locking blocks 10 are provided in the annular groove 9; the inner circle of the clamp 4 is integrally formed with a semi-annular protrusion 11, and the semi-annular protrusion 11 is provided with a plurality of locking grooves 12; when the two clamps 4 are clamped on the outer circumference of the detection cylinder segment 6, the two semi-annular protrusions 11 are matched and embedded into the annular groove 9, and each locking groove 12 is respectively engaged with each locking block 10. Through the cooperation of the annular groove 9, the semi-annular protrusion 11, the locking blocks 10 and the locking grooves 12, when the two clamps 4 are clamped on the detection cylinder segment 6, the two clamps 4 and the detection cylinder segment 6 are locked and fixed, and relative rotation will not occur, making the connection more reliable.
[0025] In this embodiment, the upper end of the bottom dustproof net cylinder 3 is integrally formed with a connecting ring 13. The outer circumference of the connecting ring 13 is provided with a plurality of first bolt through holes arranged in a radial array. The first bolt through holes are installed with first fastening bolts 14. The upper end of the underground cylinder 1 is provided with a plurality of first threaded connection holes. When the bottom dustproof net cylinder 3 is fitted onto the underground cylinder 1 from bottom to top, each of the first threaded connection holes corresponds to each of the first bolt through holes. The inner ends of each of the first fastening bolts 14 can be screwed into each of the first threaded connection holes, so that the bottom dustproof net cylinder 3 is fixedly connected to the underground cylinder 1. This installation method makes the bottom dustproof net cylinder 3 easy to assemble and disassemble.
[0026] Several reinforcing plates 15 are connected between the outer circumference of the clamp 4 and the upper side of the anti-settlement semi-ring 7, which can increase the structural strength between the clamp 4 and the anti-settlement semi-ring 7, and effectively prevent the underground protection device 23 from rotating after underground backfilling.
[0027] The clamp 4 is a sheet metal part made by bending and welding or an injection molded part made by injection molding, which reduces the manufacturing difficulty and improves the economic efficiency of the product.
[0028] In this embodiment, one end of the clamp 4 is provided with a second bolt through hole 16 and the other end is provided with a second threaded connection hole 17. A second fastening bolt 18 is installed in the second bolt through hole 16. When the two clamps 4 are clamped on the outer circumference of the detection cylinder section 6, the two clamps 4 are mated together, and the second bolt through hole 16 on the first clamp 4 corresponds to the second threaded connection hole 17 on the second clamp 4. The second fastening bolt 18 on the first clamp 4 is threaded into the second threaded connection hole 17 on the second clamp 4. The two clamps 4 are fixedly connected by the two second fastening bolts 18. In other embodiments, the two clamps 4 can also be hinged at one end and bolted or locked at the other end.
[0029] In this embodiment, the underground cover 2 has several bolt countersunk holes, and the upper end face of the detection cylinder section 6 has several threaded blind holes. Each bolt countersunk hole corresponds to each threaded blind hole. A countersunk bolt 19 is installed in the bolt countersunk hole, and the inner end of the countersunk bolt 19 is threaded into the corresponding threaded blind hole. The underground cover 2 is easy to disassemble and assemble, and facilitates maintenance and repair of the gas detector 5.
[0030] This embodiment can be used in the following two scenarios:
[0031] Use scenario A, the underground protection device 23 is installed in flower beds and non-motorized vehicle roads: at this time, it is not necessary to install the clamp 4, that is, the anti-settlement half ring 7 is not needed. It is only necessary to install the bottom dustproof net cylinder 3 on the body of the underground cylinder 1. The installation process of the underground protection device 23 is as follows: (1) Drill a hole in the ground that is slightly larger than the underground cylinder 1 with a water drill; (2) Backfill with sand and gravel to a suitable height and compact the hole; (3) Install the underground protection device 23; (4) Backfill the road surface; (5) Place the gas detector 5 into the detection cylinder section 6 and install the underground cover 2.
[0032] Use case B, such as Figure 7As shown, the underground protection device 23 is installed on the motor vehicle road surface. At this time, the underground protection device 23 needs to have a large pressure bearing capacity. It is necessary to use two anti-settlement half rings 7 to assemble a whole circular anti-settlement ring, that is, to fix the two clamps 4 together and hold them tightly on the outer circumference of the detection cylinder section 6. The bottom dustproof net cylinder 3 is installed on the cylinder body of the underground cylinder 1. The installation process of the underground protection device 23 is as follows: (1) Drill a hole in the ground with a water drill that is slightly larger than the underground cylinder 1; (2) Drill a hole larger than the whole circular anti-settlement ring with a water drill; (3) Backfill sand and gravel to a suitable height and compact the hole; (4) Install the underground protection device 23; (5) Backfill and harden the road surface to form a hardened road surface; (6) Place the gas detector 5 into the detection cylinder section 6 and install the underground cover 2.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. A double-half-ring type anti-settlement buried protection device, characterized in that: The device includes a buried cylinder, a buried cover, and two clamps. The buried cylinder is a cylindrical tube that is open at both ends. The upper end of the buried cylinder has an integrally formed detection cylinder section for internal installation and protection of a gas detector. The buried cover is detachably installed on the upper end of the detection cylinder section to seal the upper port of the detection cylinder section, thereby protecting the gas detector when buried. The two clamps are detachably connected together and tightly grip the outer circumference of the detection cylinder section. The outer circumference of each clamp has an integrally formed anti-settlement semi-ring, and the two anti-settlement semi-rings are combined to form a complete circular anti-settlement ring.
2. The double semi-ring type anti-settlement buried protection device according to claim 1, characterized in that: The outer circumference of the detection cylinder section is provided with an annular groove, and a number of circumferentially arranged locking blocks are provided in the annular groove; the inner circle of the clamp is integrally formed with a semi-annular protrusion, and the semi-annular protrusion is provided with a number of locking grooves; when the two clamps are tightly clamped on the outer circumference of the detection cylinder section, the two semi-annular protrusions are matched and embedded into the annular groove, and each locking groove is respectively engaged with each locking block.
3. The double semi-ring type anti-settlement buried protection device according to claim 1 or 2, characterized in that: The underground cylinder has several ventilation holes evenly distributed on its body.
4. The double-half-ring type anti-settlement buried protection device according to claim 3, characterized in that: It also includes a bottom dustproof net cylinder, which is fitted from bottom to top onto the body of the underground cylinder and is detachably and fixedly connected to the body of the underground cylinder.
5. The double-half-ring type anti-settlement buried protection device according to claim 4, characterized in that: The upper end of the bottom dustproof net cylinder is integrally formed with a connecting ring. Several first bolt through holes are radially arranged on the outer circumference of the connecting ring. First fastening bolts are installed in the first bolt through holes. Several first threaded connection holes are opened on the outer circumference of the upper end of the underground cylinder. When the bottom dustproof net cylinder is fitted onto the underground cylinder from bottom to top, each first threaded connection hole corresponds to each first bolt through hole. The inner end of each first fastening bolt can be screwed into each first threaded connection hole to fix the bottom dustproof net cylinder to the underground cylinder.
6. The double semi-ring type anti-settlement buried protection device according to claim 1, 2, 4, or 5, characterized in that: Several reinforcing plates connect the outer circumference of the clamp to the upper side of the anti-settlement semi-ring.
7. The double semi-ring type anti-settlement buried protection device according to claim 6, characterized in that: The clamp is a sheet metal part made by bending and welding or an injection molded part made by injection molding.
8. The double semi-ring type anti-settlement buried protection device according to claim 6, characterized in that: One end of the clamp is provided with a second bolt through hole and the other end is provided with a second threaded connection hole. A second fastening bolt is installed in the second bolt through hole. When the two clamps are clamped on the outer circumference of the detection cylinder section, the two clamps are mated together, and the second bolt through hole on the first clamp corresponds to the second threaded connection hole on the second clamp. The second fastening bolt on the first clamp is threaded into the second threaded connection hole on the second clamp. The two clamps are fixedly connected by the two second fastening bolts.
9. The double semi-ring type anti-settlement buried protection device according to claim 6, characterized in that: The underground cover has several bolt countersunk holes, and the upper end face of the detection cylinder section has several threaded blind holes. Each bolt countersunk hole corresponds to each threaded blind hole. A countersunk bolt is installed in the bolt countersunk hole, and the inner end thread of the countersunk bolt is connected to the corresponding threaded blind hole.