Heat preservation elbow assembly for prefabricated heat preservation pipe

Abstract

The utility model discloses a heat preservation elbow assembly for a prefabricated heat preservation pipe, and belongs to the technical field of heat preservation elbows, the heat preservation elbow assembly for the prefabricated heat preservation pipe comprises an elbow main body and a straight pipe main body connected with the elbow main body, a bell and spigot joint is arranged at the end, close to the elbow body, of the straight pipe body, a sealing rubber ring is embedded in the inner wall of the bell and spigot joint, a bell and spigot joint head forming an embedded structure with the bell and spigot joint is integrally formed at the end, close to the elbow body, of the straight pipe body, the outer wall of the bell and spigot joint head is tightly attached to the sealing rubber ring, and a first clamping groove is annularly formed in the outer wall of the end of the elbow body. A second clamping groove is annularly formed in the outer wall, close to the first clamping groove, of the straight pipe body, connecting plates which are of an arc-shaped structure are symmetrically installed on the connecting portion of the elbow body and the straight pipe body, and the elbow not only has good sealing and heat preservation effects, but also is very convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation elbows, and more specifically to a thermal insulation elbow assembly for a prefabricated thermal insulation pipe. Background Art

[0002] Insulated elbows are a type of insulated pipe fitting. They consist of a tightly integrated high-density polyethylene outer sleeve, a polyurethane foam insulation layer, and an inner working steel pipe. They are primarily used to divert insulated straight pipes and are generally used in conjunction with insulated pipes. They provide compensation during pipeline design for insulation projects, ensuring adequate insulation performance at the elbow. Standard elbow angles include 30, 45, 60, and 90 degrees.

[0003] The existing patent is a prefabricated insulated elbow assembly for insulated pipes, and the patent authorization number is CN218599115U. It includes an elbow body, a connection module is provided at the left end and the front end of the elbow body, an inner tube is provided in the middle of the connection module, the outer wall of the inner tube is fixedly connected to the insulation layer, the outer wall of the insulation layer is fixedly connected to the outer tube, the outer wall of the inner tube away from the end of the elbow body is fixedly connected to the outer sleeve, and the outer sleeve passes through the insulation layer, and an inner sleeve is provided inside the outer sleeve, and the inner sleeve passes through and is fixedly connected to the inner tube. In the utility model, first, the straight pipe inner tube is inserted into the gap between the inner sleeve and the outer sleeve, and the straight pipe body is adjusted by rotation so that the straight pipe fixing hole is aligned with the inner hexagonal bolt, and then the inner hexagonal bolt is rotated by a hexagonal wrench so that the straight pipe inner tube is fixed to the outer sleeve, thereby connecting the inner tube to the straight pipe inner tube, so that the installation efficiency is improved.

[0004] However, patent authorization number CN218599115U rotates the hexagonal wrench to rotate the hexagonal bolt and penetrate the inner tube of the straight tube, and then the inner tube of the straight tube is fixed to the outer sleeve, thereby connecting the inner tube with the inner tube of the straight tube, and then opening the sealing plug and injecting sealing glue into the gap between the outer sleeve and the inner sleeve through the pouring pipe, so that the tiny gap between the inner tube of the straight tube and the outer sleeve and the inner sleeve is filled. Since pressure is required to completely fill the gap when filling the sealant, a special pressurizing tool is required, and the operation is relatively inconvenient. Therefore, we propose an insulation elbow assembly for prefabricated insulation pipes to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a prefabricated thermal insulation elbow assembly for thermal insulation pipes, which not only has good sealing and thermal insulation effects but also is very convenient to assemble.

[0007] 2. Technical solution

[0008] In order to solve the above problems, the present invention adopts the following technical solutions.

[0009] A thermal insulation elbow assembly for a prefabricated thermal insulation pipe comprises an elbow body and a straight pipe body connected to the elbow body, wherein both ends of the elbow body are provided with a socket, and the inner wall of the socket is inlaid with a sealing rubber ring;

[0010] A socket plug is integrally formed at one end of the straight pipe body close to the elbow body to form an embedded structure with the socket, and the outer wall of the socket plug is tightly fitted with the sealing rubber ring;

[0011] A first clamping groove is provided on the outer wall ring of the end of the elbow body, and a second clamping groove is provided on the outer wall ring of the straight pipe body near the first clamping groove. A connecting plate with an arc-shaped structure is symmetrically installed at the connection portion between the elbow body and the straight pipe body, and a clamping block is symmetrically formed on the inner vertical surface of the connecting plate to form an embedded structure with the first and second clamping grooves;

[0012] A rock wool insulation layer compositely bonded to the inner facade of the connecting plate is provided between the blocks.

[0013] Furthermore, the outer sides of the elbow body and the straight pipe body are both covered with a polyurethane foam insulation layer, and the polyurethane foam insulation layer is composited with multiple layers.

[0014] Furthermore, the outer side of the polyurethane foam insulation layer is provided with a high-density polyethylene outer sleeve.

[0015] Furthermore, the inner diameter of the connecting plate is adapted to the outer diameters of the elbow body and the straight pipe body.

[0016] Furthermore, mounting ears are symmetrically formed integrally on the edge of the connecting plate, and assembly holes are symmetrically opened on the surface of the mounting ears.

[0017] Furthermore, a locking assembly is inserted into the inner side of the assembly hole, and the locking assembly includes a bolt and a nut.

[0018] Furthermore, a rubber washer is installed at the connection portion between the bolt and the nut.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] (1) In this solution, the socket plug provided at the end of the straight pipe body is connected to the socket provided at the end of the elbow body, so that the sealing rubber ring embedded in the inner wall of the socket is in contact with the outer wall of the socket plug to fill the gap at the joint to achieve a sealing effect. Then, the connecting plate is placed at the joint between the straight pipe body and the elbow body, so that the card blocks are respectively embedded in the inner sides of the first card groove and the second card groove, and at the same time, the rock wool insulation layer is attached to the joint between the straight pipe body and the elbow body to achieve the insulation effect. Finally, the two connecting plates are fixed together, which not only has a good sealing and insulation effect, but also is very convenient to assemble.

[0022] (2) This solution provides a polyurethane foam insulation layer to provide good insulation for the elbow body and the straight pipe body, and a high-density polyethylene outer sleeve protects the polyurethane foam insulation layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the split elbow body and the straight pipe body of the utility model;

[0025] Figure 3 This is a schematic diagram of the main structure of the elbow of the utility model;

[0026] Figure 4 This is a schematic diagram of the straight pipe main structure of the utility model.

[0027] Description of the numbers in the figure:

[0028] 1. Elbow body; 2. Straight pipe body; 3. Socket; 4. Sealing rubber ring; 5. First slot; 6. Second slot; 7. Connecting plate; 8. Block; 9. Mounting ear; 10. Locking assembly; 11. Socket; 12. Polyurethane foam insulation layer; 13. High-density polyethylene outer sleeve; 14. Rock wool insulation layer. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] Example:

[0031] See also Figure 1-4A prefabricated insulated elbow assembly for an insulated pipe comprises an elbow body 1 and a straight pipe body 2 connected to the elbow body 1. Both ends of the elbow body 1 are provided with a socket 3, and the inner wall of the socket 3 is inlaid with a sealing rubber ring 4.

[0032] The end of the straight pipe body 2 close to the elbow body 1 is integrally formed with a socket 11 that forms an embedded structure with the socket 3, and the outer wall of the socket 11 is tightly fitted with the sealing rubber ring 4;

[0033] A first clamping groove 5 is provided on the outer wall ring of the end of the elbow body 1, and a second clamping groove 6 is provided on the outer wall ring of the straight pipe body 2 near the first clamping groove 5. A connecting plate 7 with an arc-shaped structure is symmetrically installed at the connection portion of the elbow body 1 and the straight pipe body 2. The inner vertical surface of the connecting plate 7 is symmetrically integrally formed with a clamping block 8 that forms an embedded structure with the first clamping groove 5 and the second clamping groove 6;

[0034] A rock wool insulation layer 14 is provided between the blocks 8 and is compositely bonded to the inner facade of the connecting plate 7;

[0035] It should be noted that when the prefabricated insulated elbow assembly for thermal insulation pipe is used, the socket 11 provided at the end of the straight pipe body 2 is first connected to the socket 3 provided at the end of the elbow body 1, so that the sealing rubber ring 4 embedded in the inner wall of the socket 3 abuts against the outer wall of the socket 11, which is used to fill the gap at the joint to achieve a sealing effect;

[0036] Then place the connecting plate 7 at the connection position between the straight pipe body 2 and the elbow body 1, and embed the clamping block 8 into the inner side of the first clamping groove 5 and the second clamping groove 6 respectively. At the same time, make the rock wool insulation layer 14 fit the connection position between the straight pipe body 2 and the elbow body 1 to achieve the insulation effect. Finally, fix the two connecting plates 7 together, which not only has a good sealing and insulation effect, but also is very convenient to assemble.

[0037] like Figure 3 As shown, the outside of the elbow body 1 and the straight pipe body 2 are both covered with a polyurethane foam insulation layer 12, and the polyurethane foam insulation layer 12 is composited with multiple layers, and the outside of the polyurethane foam insulation layer 12 is sheathed with a high-density polyethylene outer sleeve 13;

[0038] It should be noted that the polyurethane foam insulation layer 12 has a good insulation effect on the elbow body 1 and the straight pipe body 2, and the high-density polyethylene outer sleeve 13 protects the polyurethane foam insulation layer 12.

[0039] like Figure 1 、 Figure 2 As shown, the inner diameter of the connecting plate 7 is adapted to the outer diameters of the elbow body 1 and the straight pipe body 2;

[0040] It should be noted that the stability of the connecting plate 7 is ensured after assembly.

[0041] like Figure 2 As shown, the edge of the connecting plate 7 is symmetrically integrally formed with mounting ears 9, and the surface of the mounting ears 9 is symmetrically opened with assembly holes, and the inner side of the assembly hole is plugged with a locking assembly 10, and the locking assembly 10 includes a bolt and a nut, and a rubber washer is installed at the connection between the bolt and the nut;

[0042] It should be noted that by using bolts to pass through the assembly holes opened at the mounting ears 9, and then installing the rubber washers and nuts in sequence, the elastic force of the rubber washers can be used to effectively prevent the nuts from loosening after tightening the nuts, thereby completing the installation and fixation of the connecting plate 7.

[0043] When in use: first, connect the socket 11 provided at the end of the straight pipe body 2 with the socket 3 provided at the end of the elbow body 1, so that the sealing rubber ring 4 embedded in the inner wall of the socket 3 abuts against the outer wall of the socket 11, filling the gap at the joint to achieve a sealing effect;

[0044] Then place the connecting plate 7 at the connection position between the straight pipe body 2 and the elbow body 1, so that the clamping block 8 is respectively embedded in the inner side of the first clamping groove 5 and the second clamping groove 6, and at the same time make the rock wool insulation layer 14 fit the connection position between the straight pipe body 2 and the elbow body 1 to achieve the insulation effect, and finally fix the two connecting plates 7 together.

[0045] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A thermal insulation elbow assembly for a prefabricated thermal insulation pipe, comprising an elbow body (1) and a straight pipe body (2) connected to the elbow body (1), characterized in that: Both ends of the elbow body (1) are provided with a socket (3), and the inner wall of the socket (3) is inlaid with a sealing rubber ring (4); A socket plug (11) is integrally formed at one end of the straight pipe body (2) close to the elbow body (1) and forms an embedded structure with the socket (3), and the outer wall of the socket plug (11) is tightly fitted with the sealing rubber ring (4); The outer wall ring of the end of the elbow body (1) is provided with a first clamping groove (5); the outer wall ring of the straight pipe body (2) near the first clamping groove (5) is provided with a second clamping groove (6); a connecting plate (7) with an arc-shaped structure is symmetrically installed at the portion where the elbow body (1) and the straight pipe body (2) are connected; a clamping block (8) is symmetrically formed on the inner vertical surface of the connecting plate (7) and forms an embedded structure with the first clamping groove (5) and the second clamping groove (6); A rock wool insulation layer (14) compositely bonded to the inner facade of the connecting plate (7) is provided between the clamping blocks (8).

2. The thermal insulation elbow assembly for a prefabricated thermal insulation pipe according to claim 1, characterized in that: The outer sides of the elbow body (1) and the straight pipe body (2) are both covered with a polyurethane foam insulation layer (12), and the polyurethane foam insulation layer (12) is composited with multiple layers.

3. The thermal insulation elbow assembly for a prefabricated thermal insulation pipe according to claim 2, characterized in that: The outer side of the polyurethane foam insulation layer (12) is sheathed with a high-density polyethylene outer sleeve (13).

4. The thermal insulation elbow assembly for a prefabricated thermal insulation pipe according to claim 1, characterized in that: The inner diameter of the connecting plate (7) is adapted to the outer diameters of the elbow body (1) and the straight pipe body (2).

5. The thermal insulation elbow assembly for a prefabricated thermal insulation pipe according to claim 1, characterized in that: The edge of the connecting plate (7) is symmetrically integrally formed with mounting ears (9), and the surface of the mounting ears (9) is symmetrically provided with assembly holes.

6. The thermal insulation elbow assembly for a prefabricated thermal insulation pipe according to claim 5, characterized in that: A locking assembly (10) is inserted into the inner side of the assembly hole, and the locking assembly (10) comprises a bolt and a nut.

7. The thermal insulation elbow assembly for a prefabricated thermal insulation pipe according to claim 6, characterized in that: A rubber washer is installed at the connection position between the bolt and the nut.

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