Polyurethane prefabricated directly-buried thermal insulation pipe convenient to connect

Abstract

The utility model relates to the technical field of installation of prefabricated thermal insulation pipes, and discloses a polyurethane prefabricated directly-buried thermal insulation pipe convenient to connect, which comprises a shell, a plurality of heat preservation pipes and a plurality of heat preservation pipes, the clamping assembly is fixedly mounted in the shell; wherein the clamping assembly comprises a heat preservation part and a clamping part; the connecting assembly is fixedly mounted at the right end of the pipeline; wherein the connecting assembly comprises a fixing part and a connecting part; the heat preservation part comprises an end cover, a polyurethane coating is fixedly installed in the shell, the end cover and the shell are fixedly installed, and the end cover and the pipeline are fixedly installed. According to the utility model, the connecting assembly is arranged, the connecting rod and the frame body are mounted in an overlapping manner, and the connecting rod and the frame body are fixedly mounted in a limiting manner through the fastener, so that the connecting manner is simple and convenient, and the effect of simple connecting and mounting manner of the thermal insulation pipe is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated thermal insulation pipe installation, in particular to a polyurethane prefabricated direct-buried thermal insulation pipe that is easy to connect. Background Art

[0002] The direct-buried prefabricated insulated pipe is composed of a steel pipe (working pipe) for conveying the medium, polyurethane rigid foam plastic (insulation layer), and a high-density polyethylene outer sleeve (protective layer).

[0003] At present, in the actual application of easy-to-connect polyurethane prefabricated direct-buried insulation pipes, the installation between prefabricated direct-buried insulation pipes is mostly achieved by welding. This method is time-consuming and labor-intensive, affecting the efficiency of the installation of prefabricated direct-buried insulation pipes. Utility Model Content

[0004] The utility model aims to provide a polyurethane prefabricated direct-buried thermal insulation pipe which is easy to connect, so as to achieve the purpose of solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a polyurethane prefabricated direct-buried thermal insulation pipe that is easy to connect, comprising:

[0006] A housing, wherein a pipeline is arranged inside the housing;

[0007] A snap-fit ​​assembly, the snap-fit ​​assembly being fixedly mounted inside the housing;

[0008] Wherein, the clamping assembly includes a heat-insulating portion and a clamping portion;

[0009] A connecting assembly, wherein the connecting assembly is fixedly installed at the right end of the pipeline;

[0010] Wherein, the connecting component includes a fixing part and a connecting part.

[0011] Preferably, the heat-insulating portion includes an end cover, and a polyurethane coating is fixedly installed inside the shell.

[0012] Preferably, the end cover is fixedly mounted on the housing, the end cover is fixedly mounted on the pipe, and the polyurethane coating is fixedly mounted on the pipe.

[0013] Preferably, the engaging portion includes a sealing groove, the right end of the pipe is provided with an engaging groove, the right end of the pipe is provided with an engaging block, and the engaging groove and the engaging block are matched with each other.

[0014] Preferably, the fixing portion comprises a frame, a fastener is movably installed inside the frame via threads, and a connecting end 1 is fixedly installed at the bottom of the frame.

[0015] Preferably, a groove is provided inside the frame, one end of the fastener passes through the frame and extends into the interior of the frame, a sealing groove is provided inside the connecting end one, a snap-fit ​​groove is provided inside the connecting end one at equidistant intervals around the circumference, and snap-fit ​​blocks are installed on the right end face of the connecting end one at equidistant intervals around the circumference, and the connecting end one is fixedly installed between the pipeline.

[0016] Preferably, the connecting portion includes a connecting end 2, a sealing ring is fixedly installed on the left side of the connecting end 2, a pillar is arranged on the top of the connecting end 2, a connecting rod is arranged on the top of the pillar, and a pin is movably installed inside the pillar.

[0017] Preferably, the second connecting end is fixedly installed with the pipeline, the sealing ring is matched with the sealing groove, the pillar and the second connecting end are equidistantly installed circumferentially, one end of the pin passes through the connecting rod and the pillar in sequence, and one end of the pin extends to the inside of the pillar, one end of the connecting rod is provided with a threaded hole, and the groove is matched with one end of the connecting rod.

[0018] The utility model provides a polyurethane prefabricated direct-buried thermal insulation pipe that is easy to connect. It has the following beneficial effects:

[0019] (1) The utility model uses a snap-fit ​​assembly. When the connection end 1 and the connection end 2 are connected and installed, the snap-fit ​​block and the snap-fit ​​groove are snap-fitted, and the sealing ring and the sealing groove are installed in a close fit, so that the installation gap between the connection ends is minimized as much as possible and the air tightness is good, thereby achieving the effect of a smaller installation gap between the insulation pipes.

[0020] (2) The utility model sets a connection assembly, utilizes the overlap between the connection rod and the frame, and uses fasteners to limit and fix the connection rod and the frame. The connection method is simple and convenient, achieving the effect of a simple connection and installation method for the insulation pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a front view of the utility model;

[0023] Figure 3 It is the right view of the utility model;

[0024] Figure 4 For this utility model Figure 2 A partial enlarged view of the middle part.

[0025] In the figure: 1 shell, 2 pipeline, 3 snap-fit ​​assembly, 31 insulation part, 311 end cover, 312 polyurethane coating, 32 snap-fit ​​part, 321 sealing groove, 322 snap-fit ​​groove, 323 snap-fit ​​block, 4 connection assembly, 41 fixing part, 411 frame, 412 fastener, 413 connection end 1, 42 connection part, 421 connection end 2, 422 sealing ring, 423 pillar, 424 connecting rod, 425 latch. DETAILED DESCRIPTION

[0026] 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.

[0027] 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. Embodiment 1

[0028] The preferred embodiment of the polyurethane prefabricated direct-buried thermal insulation pipe provided by the utility model is as follows: Figure 1-4 Shown: A polyurethane prefabricated direct-buried thermal insulation pipe that is easy to connect, comprising:

[0029] A shell 1, wherein a pipe 2 is arranged inside the shell 1;

[0030] A snap-fit ​​assembly 3, the snap-fit ​​assembly 3 is fixedly mounted inside the housing 1;

[0031] The clamping assembly 3 includes a heat-insulating portion 31 and a clamping portion 32;

[0032] The heat-insulating part 31 includes an end cap 311, a polyurethane coating 312 is fixedly installed inside the housing 1, the end cap 311 is fixedly installed with the housing 1, the end cap 311 is fixedly installed with the pipe 2, and the polyurethane coating 312 is fixedly installed with the pipe 2; the polyurethane coating 312 can play a role in heat insulation for the pipe 2;

[0033] The engaging portion 32 includes a sealing groove 321, a engaging groove 322 is provided at the right end of the pipe 2, and a engaging block 323 is provided at the right end of the pipe 2, and the engaging groove 322 and the engaging block 323 are adapted to each other; when the connection end 413 and the connection end 421 are docked and installed, the sealing ring 422 is installed in a close fit with the sealing groove 321, and the engaging block 323 is installed in a clamping fit with the engaging groove 322, thereby increasing the air tightness of the pipe 2 during installation. Embodiment 2

[0034] Based on Example 1, a preferred embodiment of a polyurethane prefabricated direct-buried thermal insulation pipe that is easy to connect provided by the utility model is as follows: Figure 1-4 As shown: a connecting component 4, the connecting component 4 is fixedly installed at the right end of the pipeline 2;

[0035] Wherein, the connecting component 4 includes a fixing portion 41 and a connecting portion 42;

[0036] The fixing part 41 includes a frame 411, a fastener 412 is movably installed inside the frame 411 through a thread, a connection end 413 is fixedly installed at the bottom of the frame 411, a groove is provided inside the frame 411, one end of the fastener 412 penetrates the frame 411 and extends to the inside of the frame 411, a sealing groove 321 is provided inside the connection end 413, a clamping groove 322 is equidistantly provided inside the connection end 413, a clamping block 323 is equidistantly installed on the right end face of the connection end 413, and the connection end 413 is fixedly installed between the pipe 2;

[0037] The connection part 42 includes a second connection end 421, a sealing ring 422 is fixedly installed on the left side of the second connection end 421, a support 423 is arranged on the top of the second connection end 421, a connecting rod 424 is arranged on the top of the support 423, a latch 425 is movably installed inside the support 423, the second connection end 421 is fixedly installed with the pipe 2, the sealing ring 422 and the sealing groove 321 are matched, the support 423 and the second connection end 421 are equidistantly installed on the circumference, and one end of the latch 425 passes through the connecting rod 424 in sequence. 4. The support 423, and one end of the latch 425 extends to the inside of the support 423, one end of the connecting rod 424 is provided with a threaded hole, and the groove is adapted to one end of the connecting rod 424; the connecting rod 424 is rotated until the connecting rod 424 and the frame 411 are aligned, and the fastener 412 is fixed into the frame 411, so that the connecting rod 424 and the frame 411 are fixed, which is equivalent to the relative fixation between the connecting end 1 413 and the connecting end 2 421, thereby completing the connection and installation between the pipes 2.

[0038] When in use, the polyurethane coating 312 can play a role in heat preservation and heat insulation of the pipeline 2. When the connection end 413 and the connection end 421 are docked and installed, the sealing ring 422 is installed in a fit with the sealing groove 321, and the snap block 323 is installed in a snap with the snap groove 322, which increases the airtightness of the pipeline 2 during installation. The connecting rod 424 is rotated until the connecting rod 424 and the frame 411 are in a fit and aligned position, and the fastener 412 is fixed into the frame 411, so that the connecting rod 424 and the frame 411 are fixed, which is equivalent to the relative fixation between the connection end 413 and the connection end 421, thereby completing the connection and installation between the pipelines 2.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A polyurethane prefabricated direct-buried thermal insulation pipe that is easy to connect, characterized in that: include: A housing (1), wherein a pipe (2) is arranged inside the housing (1); A snap-fit ​​assembly (3), wherein the snap-fit ​​assembly (3) is fixedly mounted inside the housing (1); Wherein, the snap-fit ​​assembly (3) comprises a heat-insulating portion (31) and a snap-fit ​​portion (32); A connecting component (4), wherein the connecting component (4) is fixedly mounted on the right end of the pipeline (2); Wherein, the connecting component (4) comprises a fixing portion (41) and a connecting portion (42).

2. The polyurethane prefabricated direct-buried thermal insulation pipe that is easy to connect according to claim 1 is characterized in that: The heat-insulating portion (31) comprises an end cover (311), and a polyurethane coating (312) is fixedly installed inside the outer shell (1).

3. The polyurethane prefabricated direct-buried thermal insulation pipe that is easy to connect according to claim 2 is characterized in that: The end cover (311) is fixedly mounted on the housing (1), the end cover (311) is fixedly mounted on the pipeline (2), and the polyurethane coating (312) is fixedly mounted on the pipeline (2).

4. The polyurethane prefabricated direct-buried thermal insulation pipe that is easy to connect according to claim 1 is characterized in that: The engaging portion (32) comprises a sealing groove (321), the right end of the pipe (2) is provided with an engaging groove (322), the right end of the pipe (2) is provided with an engaging block (323), and the engaging groove (322) and the engaging block (323) are adapted to each other.

5. The polyurethane prefabricated direct-buried thermal insulation pipe that is easy to connect according to claim 1 is characterized in that: The fixing portion (41) comprises a frame (411), a fastener (412) is movably installed inside the frame (411) via a thread, and a connection end 1 (413) is fixedly installed at the bottom of the frame (411).

6. The polyurethane prefabricated direct-buried thermal insulation pipe that is easy to connect according to claim 5, characterized in that: A groove is provided inside the frame (411); one end of the fastener (412) penetrates the frame (411) and extends into the frame (411); a sealing groove (321) is provided inside the first connection end (413); engaging grooves (322) are provided inside the first connection end (413) at equidistant intervals around the circumference; engaging blocks (323) are installed at equidistant intervals around the circumference on the right end surface of the first connection end (413); and the first connection end (413) is fixedly installed with the pipeline (2).

7. The polyurethane prefabricated direct-buried thermal insulation pipe that is easy to connect according to claim 1, characterized in that: The connecting portion (42) comprises a second connecting end (421), a sealing ring (422) is fixedly installed on the left side of the second connecting end (421), a support (423) is arranged on the top of the second connecting end (421), a connecting rod (424) is arranged on the top of the support (423), and a latch (425) is movably installed inside the support (423).

8. The polyurethane prefabricated direct-buried thermal insulation pipe that is easy to connect according to claim 7, characterized in that: The second connecting end (421) is fixedly installed with the pipe (2), the sealing ring (422) is matched with the sealing groove (321), the pillar (423) and the second connecting end (421) are equidistantly installed around the circumference, one end of the latch (425) passes through the connecting rod (424) and the pillar (423) in sequence, and one end of the latch (425) extends to the inside of the pillar (423), and one end of the connecting rod (424) is provided with a threaded hole, and the groove is matched with one end of the connecting rod (424).

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