Stable-connection polyurethane directly-buried thermal insulation pipe

Abstract

The utility model relates to the technical field of thermal insulation pipes, and discloses a polyurethane directly-buried thermal insulation pipe stable in connection, which comprises a first thermal insulation pipe and a second thermal insulation pipe, a connecting assembly is arranged between the first thermal insulation pipe and the second thermal insulation pipe, and the first thermal insulation pipe and the second thermal insulation pipe are connected through the connecting assembly. The heat-insulating pipe I and the heat-insulating pipe II are integrally connected to ports of the heat-insulating pipe II; the inner extending convex body is integrally connected to the end openings of the first heat preservation pipe and the second heat preservation pipe, and a mounting groove is formed between the outer extending convex body and the inner extending convex body; the arc-shaped blocks are oppositely pushed, the arc-shaped blocks drive the sliding blocks to move in the sliding grooves, then the embedded body is promoted to move, then the telescopic frame is pressed to enable the limiting clamping plates to be close to each other, then the embedded body is rotated, the whole communicating pipe is promoted to rotate, and therefore the communicating pipe is prevented from being damaged. And when the embedded body rotates to the screwing opening, the effect of detaching the heat preservation pipe can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation pipes, in particular to a polyurethane direct-buried thermal insulation pipe with stable connection. Background Art

[0002] Prefabricated direct-buried insulated pipe is made of a steel pipe for conveying medium, polyurethane rigid foam plastic and high-density polyethylene outer sleeve tightly combined. The polyurethane rigid foam plastic is made by injecting rigid polyurethane foam plastic stock solution into the cavity formed between the steel pipe and the outer sheath using a high-pressure foaming machine. Its functions are: one is waterproofing, two is heat preservation, and three is supporting the deadweight of the heating network. When the temperature of the conveying medium is -50°C-120°C, rigid polyurethane foam plastic is selected as the insulation layer.

[0003] Polyurethane material is currently the most commonly used thermal insulation material in the world.

[0004] At present, the connection method of prefabricated direct-buried insulated pipes is generally welding, which increases the construction time and labor of prefabricated direct-buried insulated pipes, and has poor water leakage and thermal insulation performance, which cannot meet the working requirements of polyurethane prefabricated direct-buried insulated pipes. Utility Model Content

[0005] The purpose of the utility model is to provide a polyurethane direct-buried thermal insulation pipe with a stable connection to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polyurethane direct-buried insulation pipe with a stable connection, comprising insulation pipe one and insulation pipe two, wherein a connecting component is provided between the insulation pipe one and the insulation pipe two, and the insulation pipes are connected through the connecting component.

[0007] Preferably, the connection assembly includes:

[0008] The outwardly extending convex body is integrally connected to the ports of the first and second insulation pipes;

[0009] The inner extending convex body is integrally connected to the ports of the first insulation pipe and the second insulation pipe.

[0010] Preferably, a mounting groove is formed between the outer extending convex body and the inner extending convex body; a T-shaped convex body is integrally connected to the inner extending convex body, two groups of folded arc bodies are integrally connected to the T-shaped convex body, and an interlocking groove is formed between the two groups of folded arc bodies.

[0011] Preferably, the outwardly extending convex body, the inwardly extending convex body, the T-shaped convex body and the bent arc body form an embedded groove body, and the embedded groove bodies are equidistantly distributed at the ends of the insulation pipe 1 and the insulation pipe 2, and screw openings are formed between the embedded groove bodies.

[0012] Preferably, the connection assembly includes:

[0013] The connecting pipe is provided at the connection position between the first insulation pipe and the second insulation pipe;

[0014] The arc-shaped blocks are equidistantly arranged on the outer wall of the connecting pipe and are located inside the mounting groove.

[0015] Preferably, both end portions of the connecting pipe are flush with the outwardly extending protrusions on the first and second insulation pipes, and a sealing ring is provided at the connection therebetween.

[0016] Preferably, sliding grooves are formed at equal intervals on the circumference of the outer wall of the connecting pipe, and sliding rods are fixedly installed inside the sliding grooves.

[0017] Preferably, a sliding block is fixedly connected to the bottom of the arc block, and the sliding block is sleeved on the sliding rod and is slidably connected to the sliding groove;

[0018] One side of the arc block is integrally connected with a convex arc body, and the convex arc body is embedded in the embedding groove;

[0019] The top of the arc block is integrally connected with an arc plate adapted to the mounting groove, and telescopic frames are fixedly mounted on both sides of the arc plate, and the other end of the telescopic frame is fixedly connected with a limiting clamping plate.

[0020] Preferably, the arc block, the convex arc body and the arc plate form a chimeric body that is compatible with the screw opening.

[0021] The utility model provides a polyurethane direct-buried thermal insulation pipe with stable connection. It has the following beneficial effects:

[0022] (1) The present invention distributes the embedded grooves at equal intervals around the ends of the insulation pipe 1 and the insulation pipe 2, and forms screw holes between the embedded grooves for assembly with the embedded body. By rotating the embedded body, the embedded body is taken out from the screw hole, and the connecting pipe can be removed and then disassembled.

[0023] (2) The present invention pushes the arc blocks toward each other, and the arc blocks drive the sliding blocks to move in the sliding groove, thereby causing the chimera to move, and then presses the telescopic frame to make the limit clamps approach each other, and then rotates the chimera to cause the entire connecting pipe to rotate until the chimera rotates to the screw opening, thereby achieving the effect of removing the insulation pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of the overall structure of the utility model;

[0025] Figure 2 This is the overall top view of the utility model;

[0026] Figure 3This is an overall cross-sectional view of the utility model;

[0027] Figure 4 For this utility model Figure 3 Magnified view of center A.

[0028] In the figure: 111 insulation pipe 1, 112 insulation pipe 2, 2 connecting components, 211 external extension convex body, 212 internal extension convex body, 213 T-shaped convex body, 214 folded arc body, 221 connecting pipe, 222 sealing ring, 223 sliding rod, 224 arc block, 225 sliding block, 226 card convex embedded arc body, 227 arc plate, 228 telescopic frame, 229 limit card plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. Example 1

[0031] The preferred embodiment of the polyurethane direct-buried thermal insulation pipe with stable connection provided by the utility model is as follows: Figure 1-4 As shown: A polyurethane direct-buried insulation pipe with a stable connection, including an insulation pipe 111 and an insulation pipe 2 112, wherein a connection component 2 is provided between the insulation pipe 111 and the insulation pipe 2 112, and the insulation pipe 1 111 and the insulation pipe 2 112 are connected by the connection component 2;

[0032] The connection component 2 includes:

[0033] The outwardly extending protrusion 211 is integrally connected to the ports of the insulation pipe 1 111 and the insulation pipe 2 112;

[0034] The inner extending protrusion 212 is integrally connected to the ports of the insulation pipe 1 111 and the insulation pipe 2 112;

[0035] An installation groove is formed between the outer extending protrusion 211 and the inner extending protrusion 212; a T-shaped protrusion 213 is integrally connected to the inner extending protrusion 212, and two groups of folded arc-shaped bodies 214 are integrally connected to the T-shaped protrusion 213, and an embedding groove is formed between the two groups of folded arc-shaped bodies 214; an embedding groove body is formed between the outer extending protrusion 211, the inner extending protrusion 212, the T-shaped protrusion 213 and the folded arc-shaped body 214, and the embedding groove bodies are equidistantly distributed around the circumference at the ends of the insulation pipe 111 and the insulation pipe 2 112, and a screw opening is formed between the embedding groove bodies;

[0036] Furthermore, in this embodiment, the embedded grooves are evenly distributed at the ends of the insulation tube 111 and the insulation tube 2 112, and screw holes are formed between the embedded grooves for assembly with the embedded body. By rotating the embedded body, the embedded body is taken out from the screw hole, and the connecting pipe 221 can be removed and then disassembled. Example 2

[0037] On the basis of Example 1, the preferred embodiment of the present invention provides a polyurethane direct-buried thermal insulation pipe with stable connection. Figure 1-4 As shown:

[0038] The connection component 2 also includes:

[0039] The connecting pipe 221 is provided at the connection position between the insulation pipe 1 111 and the insulation pipe 2 112;

[0040] The arc-shaped blocks 224 are equidistantly arranged on the outer wall of the connecting pipe 221 and located inside the mounting groove;

[0041] The ends of the connecting pipe 221 are flush with the outwardly extending protrusions 211 on the insulation pipe 1 111 and the insulation pipe 2 112 , and a sealing ring 222 is provided at the connection between them;

[0042] Sliding grooves are formed on the outer wall of the connecting pipe 221 at equal intervals, and sliding rods 223 are fixedly installed inside the sliding grooves.

[0043] The bottom of the arc block 224 is fixedly connected with a sliding block 225, which is sleeved on the sliding rod 223 and slidably connected with the sliding groove;

[0044] One side of the arc block 224 is integrally connected with a convex arc body 226, which is engaged with the engaging groove;

[0045] The top of the arc block 224 is integrally connected with an arc plate 227 that is adapted to the mounting groove. Telescopic frames 228 are fixedly installed on both sides of the arc plate 227. The other end of the telescopic frame 228 is fixedly connected to a limiting clamping plate 229. The arc block 224, the convex arc body 226, and the arc plate 227 form a chimeric body that is adapted to the screw opening.

[0046] Furthermore, in this embodiment, by pushing the arc blocks 224 toward each other, the arc blocks 224 drive the sliding blocks 225 to move in the sliding groove, thereby prompting the chimera to move, and then pressing the telescopic frame 228 to make the limit clamps 229 approach each other, and then rotating the chimera to prompt the entire connecting pipe 221 to rotate, until the chimera rotates to the screw mouth, the effect of removing the insulation pipe can be achieved.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A polyurethane direct-buried thermal insulation pipe with a stable connection, comprising a thermal insulation pipe 1 (111) and a thermal insulation pipe 2 (112), characterized in that: A connecting assembly (2) is provided between the first insulation pipe (111) and the second insulation pipe (112), and the two insulation pipes are connected via the connecting assembly (2); the connecting assembly (2) includes: The outwardly extending protrusion (211) is integrally connected to the ports of the first insulation pipe (111) and the second insulation pipe (112); The inner extending protrusion (212) is integrally connected to the ports of the first insulation pipe (111) and the second insulation pipe (112).

2. The polyurethane direct-buried thermal insulation pipe with stable connection according to claim 1, characterized in that: A mounting groove is formed between the outer extending convex body (211) and the inner extending convex body (212); a T-shaped convex body (213) is integrally connected to the inner extending convex body (212); two groups of folded arc-shaped bodies (214) are integrally connected to the T-shaped convex body (213), and an engaging groove is formed between the two groups of folded arc-shaped bodies (214).

3. The polyurethane direct-buried thermal insulation pipe with stable connection according to claim 1, characterized in that: The outer extending convex body (211), the inner extending convex body (212), the T-shaped convex body (213) and the folded arc body (214) form an embedded groove body, and the embedded groove bodies are equidistantly distributed at the ends of the insulation pipe 1 (111) and the insulation pipe 2 (112) around the circumference, and screwing openings are formed between the embedded groove bodies.

4. The polyurethane direct-buried thermal insulation pipe with stable connection according to claim 1, characterized in that: The connecting component (2) includes: A connecting pipe (221) is provided at a connection position between the first insulation pipe (111) and the second insulation pipe (112); The arc-shaped blocks (224) are equidistantly arranged on the outer wall of the connecting pipe (221) and are located inside the mounting groove.

5. The polyurethane direct-buried thermal insulation pipe with stable connection according to claim 4, characterized in that: The end portions of the connecting pipe (221) are flush with the outwardly extending protrusions (211) on the first insulation pipe (111) and the second insulation pipe (112), and a sealing ring (222) is provided at the connection therebetween.

6. The polyurethane direct-buried thermal insulation pipe with stable connection according to claim 4, characterized in that: Sliding grooves are provided at equal intervals on the circumference of the outer wall of the connecting pipe (221), and sliding rods (223) are fixedly installed inside the sliding grooves.

7. The polyurethane direct-buried thermal insulation pipe with stable connection according to claim 4, characterized in that: The bottom of the arc block (224) is fixedly connected with a sliding block (225), and the sliding block (225) is sleeved on the sliding rod (223) and is slidably connected to the sliding groove; One side of the arc block (224) is integrally connected with a convex arc body (226), and the convex arc body (226) is engaged with the engaging groove; The top of the arc block (224) is integrally connected to an arc plate (227) adapted to the mounting groove, and telescopic frames (228) are fixedly mounted on both sides of the arc plate (227), and the other end of the telescopic frame (228) is fixedly connected to a limiting clamping plate (229).

8. The polyurethane direct-buried thermal insulation pipe with stable connection according to claim 4, characterized in that: The arc block (224), the convex arc body (226), and the arc plate (227) form a chimeric body that is compatible with the screw opening.

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