Waterproof device for directly-buried heat supply pipeline
By designing a waterproof device including a waterproof sleeve, a moving ring and an airbag, the threaded rod is used to drive the airbag expansion, the problem of poor waterproofness of direct buried heating pipes is solved, and better waterproof performance and extended life are achieved.
Patent Information
- Application Number
- CN202420449643.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-08
AI Technical Summary
The waterproofing device of the existing direct buried heating pipeline inspection well is difficult to ensure tightness, especially when the pipeline is heat-expanded and contracted, resulting in a shortening of the service life of the waterproof sleeve, and ordinary waterproofing methods are difficult to cope with the radial direction caused by axial expansion and contraction. Movement impact.
A waterproof device including a waterproof sleeve, a moving ring, an airbag and a sealed airbag is designed. The airbag is expanded by a threaded rod to enhance the sealing property, and a sliding groove and a slider are provided inside and outside the waterproof sleeve to cope with thermal expansion and cooling. Shrink.
It significantly improves the waterproof performance of the waterproof device, can effectively deal with thermal expansion and contraction, extend the service life and improve the waterproof effect.
Smart Images
Figure CN222255434U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heating pipelines, in particular to a waterproof device for directly buried heating pipelines. Background Art
[0002] Direct buried heating pipe is a method of laying prefabricated insulated pipes directly underground, mainly used for urban heating. Its characteristics include no need to build trenches, less earthwork and civil engineering, fast construction progress, saving investment costs for heating pipe networks, and small land occupation. In addition, compared with decentralized small boilers, centralized heating has the advantages of environmental protection, energy saving, convenience and comfort, safety and hygiene, land saving and cost saving.
[0003] In the current stage of heating project construction, the waterproofing of the inspection well of the direct buried heating pipeline is mainly achieved by installing flexible waterproof casing. The insulation layer and outer protective layer of the direct buried heating pipeline are relatively soft, and have certain plastic deformation under the influence of external forces. At the same time, during the heating process, since the medium in the pipeline is high-temperature hot water, as the temperature of the medium changes, the pipeline is affected by thermal expansion and contraction, resulting in frequent axial expansion and contraction. At the same time, the axial expansion and contraction of the branch network causes the radial movement of the main network. High temperature will also affect the service life of the flexible casing. It is difficult to ensure its tightness by using ordinary waterproofing treatment methods. Utility Model Content
[0004] The utility model aims to provide a direct-buried heating pipeline waterproofing device to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a directly buried heating pipeline waterproof device, comprising a connecting pipe fitting 1, a connecting pipe fitting 2 and a waterproof assembly, and one end of the connecting pipe fitting 1 and the connecting pipe fitting 2 are both installed inside the waterproof assembly, the waterproof assembly comprises a waterproof sleeve and two movable rings, the outer side of the waterproof sleeve is provided with four slide grooves, the interior of the waterproof sleeve is provided with two airbag placement grooves 1, the interiors of the two airbag placement grooves 1 are both installed with extrusion airbags, the inner sides of the two extrusion airbags are both connected with four connecting pipes, and the end of the connecting pipe away from the extrusion airbag is connected with a sealing airbag, Two airbag placement grooves are provided on the inner side of the waterproof cover, four connecting grooves are provided inside the waterproof cover, a central sealing rubber pad is fixedly installed at the center of the inner cavity of the waterproof cover, four support seats are fixedly installed on the outer side of the waterproof cover, three of the four support seats are fixedly installed with sliding rods, and the other support seat is rotatably installed with a threaded rod inside, four sliding blocks are fixedly installed on the inner sides of the two moving rings, an extrusion ring is fixedly installed on the side of the sliding block away from the moving ring, three sliding holes are provided inside the two moving rings, and threaded holes are provided inside the two moving rings.
[0006] Preferably, the two movable rings are slidably mounted on the outside of the waterproof cover, the four sliders are slidably mounted on the inside of four slide grooves, and the two extrusion rings are slidably mounted on the inside of two airbag placement grooves.
[0007] Preferably, the two sealing airbags are respectively installed on the inner sides of the two airbag placement grooves 2, and the connecting pipes are respectively installed on the inner sides of the connecting grooves.
[0008] Preferably, the sliding rod is slidably installed on the inner side of the sliding hole, the threaded rod is threadedly connected to the inside of the threaded hole, and the thread directions of the two ends of the threaded rod are opposite.
[0009] Preferably, a knob is fixedly mounted on one end of the threaded rod.
[0010] Preferably, end sealing rubber pads are fixedly mounted on both sides of the inner cavity of the waterproof sleeve.
[0011] Compared with the prior art, the utility model has the following beneficial effects: the waterproof device moves the extrusion ring inside the airbag placement groove 1 by rotating the threaded rod, thereby extruding the extrusion airbag inside the airbag placement groove 1, thereby extruding the gas inside the extrusion airbag into the inside of the sealing airbag through the connecting pipe, thereby expanding the sealing airbag, thereby making the inner side of the sealing airbag contact with the outer sides of the connecting pipe piece 1 and the connecting pipe piece 2, thereby improving the waterproof performance of the device, thereby making the waterproof performance of the waterproof device body better and the waterproof effect more effective, reflecting the waterproof performance of the device;
[0012] In addition, the airbags can be deformed within a certain range, which can effectively cope with thermal expansion and contraction, thereby achieving effective waterproofing. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the combined three-dimensional structure of the utility model.
[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the waterproof component of the utility model.
[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the waterproof component of the utility model.
[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the waterproof cover of the utility model.
[0017] Figure 5 It is a schematic diagram of the three-dimensional structure of the mobile ring of the utility model.
[0018] In the figure: 1. Connecting pipe fitting 1; 2. Connecting pipe fitting 2; 3. Waterproof cover; 4. Moving ring; 5. Sliding rod; 6. Support seat; 7. Threaded rod; 8. Knob; 9. Sliding groove; 10. End sealing rubber pad; 11. Sealing airbag; 12. Center sealing rubber pad; 13. Threaded hole; 14. Sliding block; 15. Extrusion ring; 16. Extrusion airbag; 17. Connecting pipe; 18. Airbag placement slot 1; 19. Airbag placement slot 2; 20. Connecting groove; 21. Sliding hole. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-Figure 5 The utility model provides a technical solution: a direct-buried heating pipeline waterproof device, comprising a connecting pipe 1, a connecting pipe 2 and a waterproof component, and one end of the connecting pipe 1 and the connecting pipe 2 are both installed inside the waterproof component, the waterproof component comprises a waterproof sleeve 3 and two movable rings 4, four slide grooves 9 are provided on the outer side of the waterproof sleeve 3, two air bag placement grooves 18 are provided inside the waterproof sleeve 3, extrusion air bags 16 are installed inside the two air bag placement grooves 18, the inner sides of the two extrusion air bags 16 are connected with four connecting pipes 17, and the end of the connecting pipe 17 away from the extrusion air bag 16 is connected with a sealing air bag 11, two air bag placement grooves 19 are provided on the inner side of the waterproof sleeve 3, four connecting grooves 20 are provided inside the waterproof sleeve 3, a central sealing rubber pad 12 is fixedly installed at the center of the inner cavity of the waterproof sleeve 3, four support seats 6 are fixedly installed on the outer side of the waterproof sleeve 3, and four support seats 6 are fixedly installed on the outer side of the waterproof sleeve 3. Three of the support seats 6 are fixedly installed with sliding rods 5 inside, and a threaded rod 7 is rotatably installed inside the other support seat 6, four sliding blocks 14 are fixedly installed on the inner sides of the two moving rings 4, and an extrusion ring 15 is fixedly installed on the side of the sliding block 14 away from the moving ring 4, three sliding holes 21 are opened inside the two moving rings 4, and threaded holes 13 are opened inside the two moving rings 4. The two moving rings 4 are slidably installed on the outer side of the waterproof cover 3, the four sliding blocks 14 are slidably installed on the inner sides of the four sliding grooves 9 respectively, the two extrusion rings 15 are slidably installed on the inner sides of the two airbag placement grooves 18 respectively, the two sealing airbags 11 are respectively installed on the inner sides of the two airbag placement grooves 29, the connecting pipes 17 are respectively installed on the inner sides of the connecting grooves 20, the sliding rod 5 is slidably installed on the inner sides of the sliding holes 21, the threaded rod 7 is threadedly connected to the inside of the threaded holes 13, and the threads at both ends of the threaded rod 7 are in opposite directions.
[0021] The working principle of the above technical solution: when in use, first insert one end of the connecting pipe fitting 1 and the connecting pipe fitting 2 into the interior of the waterproof sleeve 3, and make the contact end of the connecting pipe fitting 1 and the connecting pipe fitting 2 2 located on the inner side of the central sealing rubber pad 12, and then rotate the threaded rod 7. After the threaded rod 7 is rotated, the two movable rings 4 can be moved away from each other, thereby driving the extrusion ring 15 to move inside the airbag placement groove 18 through the slider 14, thereby squeezing the extrusion airbag 16 inside the airbag placement groove 18, thereby squeezing the gas inside the extrusion airbag 16 into the interior of the sealing airbag 11 through the connecting pipe 17, thereby expanding the sealing airbag 11, so that the inner side of the sealing airbag 11 contacts the outer side of the connecting pipe fitting 1 and the connecting pipe fitting 2, thereby improving the waterproof performance of the device, thereby making the waterproof performance of the waterproof device body better and the waterproof effect more effective, reflecting the waterproofness of the device, and the airbag can be deformed within a certain range through the arrangement, which can effectively cope with the phenomenon of thermal expansion and contraction, thereby achieving effective waterproofing.
[0022] In another embodiment, Figure 1-Figure 3 As shown, a knob 8 is fixedly mounted on one end of the threaded rod 7 .
[0023] The provided knob 8 facilitates the rotation of the threaded rod 7 .
[0024] In another embodiment, Figure 1-Figure 4 As shown, end sealing rubber pads 10 are fixedly installed on both sides of the inner cavity of the waterproof cover 3.
[0025] The waterproof performance of the device is improved by providing the end sealing rubber pad 10, so that the waterproof performance of the waterproof device body is better and the waterproof effect is more effective, which reflects the waterproof performance of the device.
[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A direct buried heating pipeline waterproof device, comprising a connecting pipe part 1 (1), a connecting pipe part 2 (2) and a waterproof assembly, wherein one end of the connecting pipe part 1 (1) and the connecting pipe part 2 (2) are both installed inside the waterproof assembly, characterized in that: The waterproof component comprises a waterproof sleeve (3) and two movable rings (4). The outer side of the waterproof sleeve (3) is provided with four slide grooves (9). The interior of the waterproof sleeve (3) is provided with two airbag placement grooves (18). The interiors of the two airbag placement grooves (18) are both equipped with extrusion airbags (16). The inner sides of the two extrusion airbags (16) are both connected with four connecting pipes (17). The ends of the connecting pipes (17) away from the extrusion airbags (16) are connected with sealing airbags (11). The inner side of the waterproof sleeve (3) is provided with two airbag placement grooves (19). The interior of the waterproof sleeve (3) is provided with four connecting pipes (20). A central sealing rubber pad (12) is fixedly installed at the center of the inner cavity of the waterproof sleeve (3); four support seats (6) are fixedly installed on the outer side of the waterproof sleeve (3); three of the four support seats (6) are fixedly installed with sliding rods (5) inside, and a threaded rod (7) is rotatably installed inside the other support seat (6); four sliding blocks (14) are fixedly installed on the inner sides of the two moving rings (4); a pressing ring (15) is fixedly installed on the side of the sliding block (14) away from the moving ring (4); three sliding holes (21) are opened inside the two moving rings (4); and threaded holes (13) are opened inside the two moving rings (4).
2. A direct buried heating pipeline waterproofing device according to claim 1, characterized in that: The two movable rings (4) are both slidably mounted on the outside of the waterproof cover (3), the four sliders (14) are respectively slidably mounted on the inside of the four slide grooves (9), and the two extrusion rings (15) are respectively slidably mounted on the inside of the two airbag placement grooves (18).
3. A direct buried heating pipeline waterproofing device according to claim 1, characterized in that: The two sealing airbags (11) are respectively installed on the inner sides of the two airbag placement grooves (19), and the connecting pipes (17) are respectively installed on the inner sides of the connecting grooves (20).
4. A direct buried heating pipeline waterproofing device according to claim 1, characterized in that: The sliding rod (5) is slidably mounted on the inner side of the sliding hole (21), and the threaded rod (7) is threadedly connected to the inside of the threaded hole (13), and the thread directions of the two ends of the threaded rod (7) are opposite.
5. A direct buried heating pipeline waterproofing device according to claim 1, characterized in that: A knob (8) is fixedly mounted on one end of the threaded rod (7).
6. A direct buried heating pipeline waterproofing device according to claim 1, characterized in that: End sealing rubber pads (10) are fixedly mounted on both sides of the inner cavity of the waterproof sleeve (3).