Underground direct burial prefabricated thermal insulation pipe protection structure

Abstract

The utility model discloses an underground direct burial prefabricated thermal insulation pipe protection structure, which relates to the technical field of thermal insulation pipes and comprises a thermal insulation pipe fitting, a plurality of bolts are connected onto the thermal insulation pipe fitting in a sliding manner, one end of each bolt is provided with a disc piece, each disc piece is provided with a hexagonal groove, and the thermal insulation pipe fitting is provided with a plurality of spring telescopic pieces. Every two spring telescopic pieces can drive one threaded sleeve to move when stretching out and drawing back, one bolt corresponds to one threaded sleeve in position, a first connecting disc is attached to a second connecting disc, then a disc piece is rotated to enable the multiple spring telescopic pieces to stretch out and draw back, and when the bolts and threaded caps are screwed down, the multiple spring telescopic pieces stretch out and draw back. When the bolt and the threaded cap are screwed, pulling force is generated between the bolt and the threaded cap, so that friction force between the bolt and the threaded cap is increased, looseness between the bolt and the threaded cap is prevented, connection problems between two heat preservation pipe fittings are avoided, and the heat preservation pipe fittings can be conveniently used underground for a long time.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation pipe technology, specifically to a protective structure for underground direct-buried prefabricated thermal insulation pipes. Background Technology

[0002] The background technology of thermal insulation pipes originated from the need to control heat loss or absorption during fluid transportation. In the early days, natural materials such as asbestos, cork, and felt or simple double-layer metal pipe filling structures were mainly used to achieve insulation. However, these traditional materials have problems such as high thermal conductivity, low insulation efficiency, poor temperature resistance, and environmental and health hazards (such as asbestos causing cancer).

[0003] According to CN209484163U, the invention includes a pipe body with a semi-circular first and second insulation shell outside the pipe body. The first and second insulation shells form a hollow ring structure. A semi-circular insulation layer is provided on the inner side of both the first and second insulation shells. A semi-circular elongated shell is fixedly connected to one end of each of the first and second insulation shells. A slot is provided at the other end of each of the first and second insulation shells to accommodate the elongated shell. T-shaped grooves are provided at the bottom of both sides of the first insulation shell. This invention facilitates the disassembly, replacement, or recycling of the insulation layer, reducing manual labor and saving resources. Furthermore, the fixing screw is located inside the groove and does not protrude from the insulation shell, thus avoiding the influence of external friction and making the overall structure more stable.

[0004] However, most of the current insulation pipes need to be laid deep underground, so it is very difficult to detect if the connection between the insulation pipes becomes loose, and the loosening will cause leakage and waste of energy. Utility Model Content

[0005] The purpose of this utility model is to provide a protective structure for underground direct-buried prefabricated insulated pipes to overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: it includes an insulated pipe fitting, on which a plurality of bolts are slidably connected, and each of the bolts is provided with a disc at one end, the disc being provided with a hexagonal groove, and the insulated pipe fitting is provided with a plurality of spring telescopic members, wherein every two spring telescopic members can drive a threaded sleeve to move when they extend or retract, and one bolt corresponds to one threaded sleeve.

[0007] Furthermore, the thermal insulation pipe fitting includes a pipe body, with a first connecting plate and a second connecting plate respectively provided at both ends of the pipe body. The first connecting plate is provided with a plurality of limiting posts, and the second connecting plate is provided with a plurality of limiting holes. The plurality of limiting posts correspond one-to-one with the positions of the plurality of limiting holes. A connecting pipe is provided at one end of the pipe body.

[0008] Furthermore, the first connecting plate and the second connecting plate each have several through holes, and the positions of the through holes on the first connecting plate and the second connecting plate correspond one-to-one.

[0009] Furthermore, a connecting plate is provided on the output end of every two spring telescopic members, and the connecting plates are respectively fixedly connected to the threaded sleeves.

[0010] Furthermore, the connecting plate is provided with two fasteners, and the second connecting plate is provided with a plurality of fastening slots. The plurality of fasteners pass through the plurality of fastening slots one by one, and the plurality of fasteners are engaged with the second connecting plate.

[0011] Furthermore, the first connecting plate is provided with a plurality of limiting grooves, each of the plurality of limiting grooves is slidably connected to an abutment, and a limiting plate is provided at both ends of the plurality of abutment. A storage groove is opened in the limiting groove. One end of the plurality of abutment corresponds to the plurality of disc components respectively, and the other end of the plurality of abutment corresponds to the position of the plurality of buckle components respectively.

[0012] Compared with the prior art, the underground direct-buried prefabricated insulated pipe protection structure provided by this utility model, by attaching the first connecting plate and the second connecting plate, and then rotating the disc to allow several spring telescopic components to extend and retract. When the bolt and the threaded cap are tightened, the extension and retraction of the several spring telescopic components generates a pulling force between the bolt and the threaded cap, thereby increasing the friction between the bolt and the threaded cap, preventing the bolt and the threaded cap from loosening, avoiding problems in the connection between the two insulated pipe fittings, and facilitating the long-term use of the insulated pipe fittings underground. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 One of the overall structural schematic diagrams provided for an embodiment of this utility model;

[0015] Figure 2 This is the second overall structural schematic diagram provided for an embodiment of the present utility model;

[0016] Figure 3 This is a partial structural cross-sectional schematic diagram provided for an embodiment of the present utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Insulated pipe fitting; 11. Pipe body; 12. First connecting plate; 13. Second connecting plate; 14. Limiting post; 15. Limiting hole; 16. Through hole; 17. Clip groove; 18. Limiting groove; 19. Storage groove; 120. Connecting pipe; 2. Bolt; 3. Disc component; 4. Spring telescopic component; 5. Threaded sleeve; 6. Connecting plate; 7. Clip component; 8. Abutment component; 9. Limiting plate. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] Please see Figure 1-3 The underground direct-buried prefabricated insulated pipe protection structure provided in this utility model embodiment includes an insulated pipe fitting 1. Several bolts 2 are slidably connected to the insulated pipe fitting 1. Each of the bolts 2 has a disc 3 at one end. The disc 3 has a hexagonal groove. Several spring telescopic members 4 are provided on the insulated pipe fitting 1. When two spring telescopic members 4 extend or retract, they can drive a threaded sleeve 5 to move. One bolt 2 corresponds to one threaded sleeve 5. The several spring telescopic members 4 can extend or retract. When the bolt 2 is tightened with the threaded cap, the extension or retraction of the several spring telescopic members 4 generates a pulling force between the bolt 2 and the threaded cap, thereby increasing the friction between the bolt 2 and the threaded cap and preventing loosening between the bolt 2 and the threaded cap. This avoids connection problems between two insulated pipe fittings 1, so as to facilitate the long-term use of the insulated pipe fitting 1 underground.

[0020] Preferably, the thermal insulation pipe fitting 1 includes a pipe body 11, with a first connecting plate 12 and a second connecting plate 13 respectively provided at both ends of the pipe body 11. The first connecting plate 12 is provided with a plurality of limiting posts 14, and the second connecting plate 13 is provided with a plurality of limiting holes 15. The plurality of limiting posts 14 correspond one-to-one with the positions of the plurality of limiting holes 15. The first connecting plate 12 and the second connecting plate 13 are each provided with a plurality of through holes 16. The positions of the through holes 16 on the first connecting plate 12 and the second connecting plate 13 correspond one-to-one. By aligning the positions of the limiting posts 14 in one thermal insulation pipe fitting 1 with the positions of the limiting holes 15 in another thermal insulation pipe fitting 1, and then fitting the first connecting plate 12 and the second connecting plate 13 together, the plurality of limiting posts 14 are inserted one-to-one into the plurality of limiting holes 15.

[0021] Preferably, a connecting plate 6 is provided on the output end of every two spring telescopic members 4, and the plurality of connecting plates 6 are respectively fixedly connected to the plurality of threaded sleeves 5.

[0022] Preferably, the connecting plate 6 is provided with two fasteners 7, and the second connecting plate 13 is provided with a plurality of fastening slots 17. The plurality of fasteners 7 pass through the plurality of fastening slots 17 one by one, and the plurality of fasteners 7 are engaged with the second connecting plate 13.

[0023] Preferably, the first connecting plate 12 is provided with a plurality of limiting grooves 18, each of the plurality of limiting grooves 18 being slidably connected to an abutment member 8, and each of the plurality of abutment members 8 having a limiting plate 9 at both ends. A receiving groove 19 is formed within each of the limiting grooves 18, one end of each of the plurality of abutment members 8 corresponding to a plurality of the plurality of disc members 3, and the other end of each of the plurality of abutment members 8 corresponding to a plurality of the plurality of fasteners 7, such that the plurality of fasteners 7 are inserted one-to-one into the plurality of limiting grooves 18. Then, rotating the disc 3 causes the bolt 2 to be screwed into the threaded sleeve 5. The threaded sleeve 5 prevents the bolt 2 from moving. When the bolt 2 moves to the point where the disc 3 contacts the limiting plate 9, the disc 3 moves continuously, causing the limiting plate 9 to move, which in turn moves the abutting part 8 and the limiting plate 9 that is not in contact with the disc 3. This causes several limiting plates 9 to contact the inclined surfaces on several fasteners 7, causing several fasteners 7 to bend and deform, and causing several fasteners 7 to no longer engage with the second connecting disc 13.

[0024] Working principle: By aligning the limiting post 14 in one insulation pipe fitting 1 with the limiting hole 15 in another insulation pipe fitting 1, and then fitting the first connecting plate 12 and the second connecting plate 13 together, the connection of the first connecting plate 12 and the second connecting plate 13 is facilitated by the setting of the connecting pipe 120, and the connection and sealing between the pipe bodies 11 are also facilitated. This allows several limiting posts 14 to be inserted one-to-one into several limiting holes 15, and several fasteners 7 to be inserted one-to-one into several limiting grooves 18. Then, rotating the disc 3 causes the bolt 2 to be screwed into the threaded sleeve 5. The threaded sleeve 5 prevents the bolt 2 from moving. When the bolt 2 moves to the point where the disc 3 contacts the limiting plate 9, the bolt 2 is engaged. As the disc 3 moves continuously, it drives the limiting plate 9 to move, causing the abutment 8 to move. This, in turn, causes the limiting plate 9, which is not in contact with the disc 3, to move. This results in several limiting plates 9 contacting the inclined surfaces of several fasteners 7, causing several fasteners 7 to bend and deform. This prevents several fasteners 7 from engaging with the second connecting disc 13, allowing several spring telescopic components 4 to extend and retract. When the bolt 2 and the threaded cap are tightened, the extension and retraction of several spring telescopic components 4 generates a pulling force between the bolt 2 and the threaded cap, increasing the friction between the bolt 2 and the threaded cap and preventing loosening. This avoids problems in the connection between the two insulation pipe components 1, facilitating the long-term use of the insulation pipe components 1 underground.

[0025] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A protective structure for direct-buried prefabricated thermal insulation pipes, characterized in that, The utility model provides a heat preservation pipe spare, the heat preservation pipe spare is provided with a plurality of bolts (2) on the heat preservation pipe spare (1), a plurality of the bolt (2) one end each is provided with a disc piece (3), the disc piece (3) is provided with hexagonal recess, the heat preservation pipe spare (1) is provided with a plurality of spring telescopic spare (4), every two spring telescopic spare (4) telescopic when can drive a threaded sleeve (5) moves, a bolt (2) with a threaded sleeve (5) position corresponds.

2. The underground directly buried precast thermal insulation pipe protection structure according to claim 1, characterized in that, The utility model provides a heat preservation pipe spare, the heat preservation pipe spare is provided with a plurality of bolts (2) on the heat preservation pipe spare (1), a plurality of the bolt (2) one end each is provided with a disc piece (3), the disc piece (3) is provided with hexagonal recess, the heat preservation pipe spare (1) is provided with a plurality of spring telescopic spare (4), every two spring telescopic spare (4) telescopic when can drive a threaded sleeve (5) moves, a bolt (2) with a threaded sleeve (5) position corresponds.

3. The underground directly-buried prefabricated thermal insulation pipe protection structure according to claim 2, characterized in that, The first connecting disc (12) and the second connecting disc (13) are each provided with a plurality of through holes (16), the through holes (16) of the first connecting disc (12) and the second connecting disc (13) are one-to-one corresponding, and the one end of the pipe body (11) is internally provided with a connecting pipe (120).

4. The underground directly-buried prefabricated thermal insulation pipe protection structure according to claim 3, characterized in that, Every two spring telescopic spare (4) output is provided with a connecting plate (6), and a plurality of connecting plates (6) are respectively fixedly connected with a plurality of threaded sleeves (5).

5. The underground directly buried precast thermal pipe protection structure according to claim 4, characterized in that, The connecting plate (6) is provided with two buckle members (7), the second connecting disc (13) is provided with a plurality of buckle grooves (17), a plurality of buckle members (7) are respectively one-to-one corresponding and penetrate a plurality of buckle grooves (17), and a plurality of buckle members (7) are all clamped with the second connecting disc (13).

6. The underground directly buried precast thermal pipe protection structure according to claim 5, characterized in that, The first connecting disc (12) is provided with a plurality of limiting grooves (18), a plurality of limiting grooves (18) are each slidably connected with an abutting member (8), a plurality of abutting members (8) are provided with a limiting plate (9) on both ends, a receiving groove (19) is formed in the limiting groove (18), one end of a plurality of abutting members (8) corresponds to a plurality of disc pieces (3) respectively, and the other end of a plurality of abutting members (8) corresponds to a plurality of buckle members (7) respectively.

Images