A pipeline thermal jacket installation mechanism for extremely cold regions

Abstract

This utility model relates to the field of pipeline insulation sleeve technology, and discloses a pipeline insulation sleeve installation mechanism for extremely cold regions. It includes: an insulation sleeve assembly consisting of a front insulation sleeve and a rear insulation sleeve, with an axially aligned main connecting sleeve and a secondary connecting sleeve respectively on their surfaces; guide rods inserted on both sides of the inner cavity of the main connecting sleeve, with a return spring connecting the rod body to the inner wall of the main connecting sleeve; and an inner through hole at the outer end of the guide rod. The secondary connecting sleeve's inner cavity engages with the guide rod, with an inner locking post at its inner end and an outer connecting handle at its outer end. Mechanical locking is achieved through the rotational engagement of the inner locking post and the inner through hole. This mechanism blocks the cold bridge effect through the axial sealing structure of the main and secondary connecting sleeves. The return spring and the guide rod form an adaptive adjustment system, utilizing elastic potential energy to maintain the surface contact seal between the inner locking post and the inner through hole, simultaneously compensating for pipeline thermal expansion and contraction deformation. The outer connecting handle design enables contactless operation in low-temperature environments, and the rotational engagement mechanism prevents connection failure.

Description

Technical Field

[0001] This utility model relates to the field of pipe insulation sleeve technology, specifically a pipe insulation sleeve installation mechanism for extremely cold regions. Background Technology

[0002] In the field of pipeline engineering, maintaining the integrity of the insulation layer and the reliability of connections for industrial pipeline systems operating in extremely cold regions is a core technical requirement for ensuring normal pipeline operation and preventing freezing and cracking accidents. Due to the special operating conditions of extremely cold environments, such as continuous low temperatures and large temperature differences between day and night, traditional pipeline insulation sleeve connection structures often face the risk of sealing failure due to the thermal expansion and contraction characteristics of materials and limitations in installation and operation, which directly affects the thermal performance and mechanical stability of the pipeline system.

[0003] In existing technologies, the connection structure of pipe insulation jackets mostly adopts segmented clamps or bolt fastening schemes. The connection interface has obvious gaps, which causes cold energy to be directly conducted through metal components, forming a cold bridge effect and accelerating heat loss. This type of rigid connection method lacks a deformation compensation mechanism. When the pipe expands or contracts axially due to temperature changes, stress concentration or gap widening is likely to occur at the connection point, causing the insulation layer to crack or the seal to fail. At the same time, traditional clamping structures usually rely on manual tightening of bolts to achieve locking. During the operation, direct contact with low-temperature metal components is required, which poses a risk of frostbite. Moreover, the installation efficiency is limited by the cumbersome process of tightening each bolt individually. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pipe insulation sleeve installation mechanism for extremely cold regions. This mechanism solves the technical problems of significant gaps at the connection interface, which cause cold energy to be directly conducted through metal components, forming a cold bridge effect and accelerating heat loss. Additionally, rigid connection methods lack deformation compensation mechanisms, which can easily lead to stress concentration or gap widening at the connection points when the pipe undergoes axial expansion and contraction due to temperature changes, resulting in cracking of the insulation layer or sealing failure.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipe insulation sleeve installation mechanism for extremely cold regions, comprising:

[0006] The insulation sleeve assembly, and the insulation front sleeve and insulation rear sleeve that make up the insulation sleeve assembly, wherein the surfaces of the insulation front sleeve and the insulation rear sleeve are respectively provided with a main connecting cylinder and an auxiliary connecting cylinder, and the positions of the main connecting cylinder and the auxiliary connecting cylinder are corresponding.

[0007] The guide rod is inserted into both sides of the inner cavity of the main connecting cylinder, and a return spring is connected between the inner wall of the main connecting cylinder and the surface of the guide rod. An inner through hole is opened at the outer end of the guide rod.

[0008] A guide rod is fitted into the inner cavity of the auxiliary connecting cylinder, and an inner locking post and an outer connecting handle are respectively installed at the inner and outer ends of the guide rod. The inner locking post is engaged with the inner through hole. The front insulation sleeve and the rear insulation sleeve are respectively fitted onto the mating ends of the pipe to be insulated, ensuring that the open end faces of the main connecting cylinder and the auxiliary connecting cylinder are axially aligned.

[0009] The front insulation sleeve and the rear insulation sleeve are joined along the axial direction of the pipeline so that the inner cavity port of the auxiliary connecting cylinder and the outer end face of the main connecting cylinder are axially fitted.

[0010] Hold the outer connecting handle and push the guide rod along the axis of the secondary connecting cylinder, so that the inner locking pin passes through the inner wall of the secondary connecting cylinder and the outer end face of the main connecting cylinder in sequence, and enters the inner through hole at the outer end of the guide rod. The outer connecting handle and the guide rod drive the inner locking pin to rotate in the inner through hole, so that the end of the inner locking pin is misaligned with the end of the inner through hole.

[0011] The outer connecting rod drives the guide rod to move outward, and the inner locking pin drives the guide main rod to move to the outside of the main connecting cylinder within the inner through hole, and squeezes the return spring. After the guide rod is locked onto the secondary connecting cylinder, the surface of the inner locking pin is tightly fitted to the inner wall of the inner through hole under the reset action of the return spring.

[0012] Preferably, the inner surface of the insulation front sleeve is respectively equipped with a sealing block and a positioning post, and the inner surface of the auxiliary connecting cylinder is respectively provided with a sealing slot and a positioning hole. During the assembly process, the operator aligns the sealing block of the insulation front sleeve with the sealing slot of the auxiliary connecting cylinder and inserts it, while simultaneously inserting the positioning post into the corresponding positioning hole to complete the initial connection between the two.

[0013] Preferably, the sealing block is inserted into the sealing slot, and the positioning pin is inserted into the positioning hole. During the connection process, the sealing block is fully inserted into the sealing slot to form a sealing structure, and the positioning pin is simultaneously inserted into the positioning hole to achieve axial and radial positioning.

[0014] Preferably, the top and bottom of the inner walls of both the main connecting cylinder and the auxiliary connecting cylinder are provided with limiting grooves, and limiting edges are slidably connected to the inner cavities of the limiting grooves, with the limiting edges connected to the upper and lower surfaces of the guide rod. During the installation of the guide rod, the limiting edges slide along the limiting grooves on the inner walls of the main and auxiliary connecting cylinders, restricting the movement trajectory of the guide rod.

[0015] Preferably, each of the inner through holes has an inner slot at its outer end, and inner locking blocks are evenly installed on the surface of the inner locking post, with the inner locking blocks inserted into the inner slots. During the connection process between the inner locking post and the inner through hole, the inner locking blocks are aligned with the inner slots and inserted and rotated, causing the inner locking blocks and inner slots to be misaligned and forming a locking connection.

[0016] Preferably, the inner wall of the auxiliary connecting cylinder has an annular connecting hole, and the ends of the annular connecting hole are all provided with external locking grooves. External locking blocks are evenly installed on the surface of the guide rod, and the external locking blocks are inserted into the external locking grooves. During the locking process of the guide rod, the external locking blocks enter the annular connecting hole through the external locking grooves on the inner wall of the auxiliary connecting cylinder and rotate, causing the external locking blocks to be misaligned with the external locking grooves, thereby completing the fixing of the guide rod.

[0017] Compared with the prior art, this utility model provides a pipe insulation sleeve installation mechanism for extremely cold regions, which has the following advantages:

[0018] This pipe insulation sleeve installation mechanism for extremely cold regions features an axially aligned design between the main and auxiliary connecting cylinders to ensure a continuous sealing surface at the connection interface, effectively blocking the cold bridge effect and preventing heat loss through the connection points.

[0019] The combination of the guide rod and the return spring constitutes an adaptive adjustment mechanism. When the guide rod pushes the inner locking pin into the inner through hole and rotates and misaligns, the elastic potential energy of the return spring is converted into a continuous clamping force, so that the surface of the inner locking pin and the inner wall of the inner through hole form a surface contact seal, which not only compensates for the deformation displacement caused by the thermal expansion and contraction of the pipeline, but also maintains the mechanical stability of the connection structure.

[0020] The rotating locking mechanism between the inner locking post and the inner through hole prevents accidental loosening through mechanical limiting. Combined with the external connecting handle design at the outer end of the guide rod, it allows installers to complete the locking operation without directly contacting the low-temperature components, improving operational safety. The entire mechanism achieves rapid locking through mechanical linkage, significantly shortening outdoor operation time in extremely cold environments. At the same time, the elastic connection structure automatically adapts to the axial displacement of the pipeline, avoiding connection failure due to temperature changes, ensuring that the insulation layer maintains its complete sealing performance for a long time, and effectively reducing the risk of pipeline freezing and cracking in extremely cold regions. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the detachable structure of the thermal insulation sleeve assembly of this utility model;

[0023] Figure 3 This is a cross-sectional view of the internal structure of the auxiliary connecting tube of this utility model;

[0024] Figure 4 Appendix to this utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0025] Figure 5 Appendix to this utility model Figure 3 Enlarged structural diagram at point B;

[0026] Figure 6This is a cross-sectional view of the internal structure of the main connecting cylinder of this utility model;

[0027] Figure 7 Appendix to this utility model Figure 6 Enlarged structural diagram at point C;

[0028] Figure 8 This is a cross-sectional view of the internal structure of the guide rod of this utility model.

[0029] In the diagram: 1. Insulation sleeve assembly; 2. Front insulation sleeve; 3. Rear insulation sleeve; 4. Sealing block; 5. Positioning post; 6. Sealing slot; 7. Positioning hole; 8. Main connecting cylinder; 9. Secondary connecting cylinder; 10. Guide main rod; 11. Return spring; 12. Limiting edge; 13. Limiting groove; 14. Inner through hole; 15. Inner retaining groove; 16. Guide secondary rod; 17. Inner retaining post; 18. Inner retaining block; 19. Outer connecting handle; 20. Ring connecting hole; 21. Outer retaining groove; 22. Outer retaining block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] This utility model provides a technical solution: a pipe insulation sleeve installation mechanism for extremely cold regions, comprising: (see details) Figures 1 to 8 Insulation sleeve assembly 1, and insulation front sleeve 2 and insulation rear sleeve 3 that make up insulation sleeve assembly 1, and the surfaces of insulation front sleeve 2 and insulation rear sleeve 3 are respectively provided with main connecting cylinder 8 and auxiliary connecting cylinder 9, and the positions of main connecting cylinder 8 and auxiliary connecting cylinder 9 are corresponding.

[0032] The guide rod 10 is inserted into both sides of the inner cavity of the main connecting cylinder 8, and a return spring 11 is connected between the inner wall of the main connecting cylinder 8 and the surface of the guide rod 10. An inner through hole 14 is opened at the outer end of the guide rod 10.

[0033] The guide rod 16 is engaged within the inner cavity of the auxiliary connecting cylinder 9, and its inner and outer ends are respectively equipped with an inner locking post 17 and an outer connecting handle 19. The inner locking post 17 is engaged with the inner through hole 14. The insulation front sleeve 2 and insulation rear sleeve 3 are respectively fitted onto the mating ends of the pipe to be insulated, ensuring that the open end faces of the main connecting cylinder 8 and the auxiliary connecting cylinder 9 are axially aligned.

[0034] The front insulation sleeve 2 and the rear insulation sleeve 3 are connected along the pipeline axis so that the inner cavity port of the auxiliary connecting cylinder 9 and the outer end face of the main connecting cylinder 8 are axially fitted.

[0035] Hold the outer connecting handle 19 and push the guide rod 16 axially along the secondary connecting cylinder 9, so that the inner locking pin 17 passes through the inner wall of the secondary connecting cylinder 9 and the outer end face of the main connecting cylinder 8 in sequence, and enters the inner through hole 14 at the outer end of the guide main rod 10. The outer connecting handle 19 and the guide rod 16 drive the inner locking pin 17 to rotate in the inner through hole 14, so that the end of the inner locking pin 17 is misaligned with the end of the inner through hole 14.

[0036] The outer connecting handle 19 drives the guide rod 16 to move outward, and the inner locking pin 17 drives the guide main rod 10 to move to the outside of the main connecting cylinder 8 within the inner through hole 14, and squeezes the return spring 11. After the guide rod 16 is locked onto the auxiliary connecting cylinder 9, the surface of the inner locking pin 17 is tightly fitted with the inner wall of the inner through hole 14 under the reset action of the return spring 11.

[0037] Please see Figure 2 The inner surface of the insulation front sleeve 2 is equipped with a sealing block 4 and a positioning pin 5, and the inner surface of the auxiliary connecting cylinder 9 is provided with a sealing slot 6 and a positioning hole 7. During assembly, the operator aligns the sealing block 4 of the insulation front sleeve 2 with the sealing slot 6 of the auxiliary connecting cylinder 9 and inserts it in, while simultaneously inserting the positioning pin 5 into the corresponding positioning hole 7, completing the initial connection between the two. The cooperation between the sealing block 4 and the sealing slot 6 effectively prevents the medium from leaking through the connection gap. The insertion of the positioning pin 5 into the positioning hole 7 ensures the precise alignment of the insulation front sleeve 2 and the auxiliary connecting cylinder 9, avoiding installation errors. The sealing block 4 is inserted into the sealing slot 6, and the positioning pin 5 is inserted into the positioning hole 7. During the connection process, the sealing block 4 is fully inserted into the sealing slot 6 to form a sealing structure, and the positioning pin 5 is simultaneously inserted into the positioning hole 7 to achieve axial and radial positioning. The insertion connection method simplifies the assembly process, and at the same time, the double positioning ensures the stability of the connection and prevents connection failure due to external force or thermal expansion and contraction.

[0038] Please see Figure 4 , Figure 6 , Figure 7 and Figure 8Limiting grooves 13 are provided at the top and bottom of the inner walls of the main connecting cylinder 8 and the auxiliary connecting cylinder 9, and limiting edges 12 are slidably connected to the inner cavities of the limiting grooves 13. The limiting edges 12 are connected to the upper and lower surfaces of the guide rod 10. During the installation of the guide rod 10, the limiting edges 12 slide along the limiting grooves 13 on the inner walls of the main connecting cylinder 8 and the auxiliary connecting cylinder 9, restricting the movement trajectory of the guide rod 10. The cooperation between the limiting grooves 13 and the limiting edges 12 effectively constrains the movement direction of the guide rod 10, preventing it from deviating or rotating during operation, and ensuring the operational stability of the system. The outer ends of the inner through holes 14 are provided with inner slots 15, and inner blocks 18 are evenly installed on the surface of the inner blocks 17, with the inner blocks 18 inserted into the inner slots 15. During the connection process between the inner locking post 17 and the inner through hole 14, the inner locking block 18 is inserted and rotated in alignment with the inner locking groove 15, causing the inner locking block 18 and the inner locking groove 15 to be misaligned and forming a locking connection. The insertion connection between the inner locking block 18 and the inner locking groove 15 enhances the connection strength between the inner locking post 17 and the inner through hole 14, effectively preventing relative rotation or axial loosening between the two.

[0039] Please see Figure 3 , Figure 4 and Figure 5 The inner wall of the auxiliary connecting cylinder 9 has an annular connecting hole 20, and the ends of the annular connecting hole 20 are all provided with external locking grooves 21. External locking blocks 22 are evenly installed on the surface of the guide rod 16, and the external locking blocks 22 are inserted into the external locking grooves 21. During the locking process of the guide rod 16, the external locking blocks 22 enter the annular connecting hole 20 through the external locking grooves 21 on the inner wall of the auxiliary connecting cylinder 9 and rotate, causing the external locking blocks 22 and the external locking grooves 21 to be misaligned, thereby completing the fixation of the guide rod 16. The insertion connection between the external locking blocks 22 and the external locking grooves 21 effectively restricts the rotational freedom of the guide rod 16, ensuring that it maintains a fixed position during operation and improving the structural stability of the system.

[0040] This solution involves fitting the front insulation sleeve 2 and the rear insulation sleeve 3 onto the mating ends of the pipe to be insulated, ensuring that the open end faces of the main connecting cylinder 8 and the auxiliary connecting cylinder 9 are axially aligned. At the same time, the sealing insert 4 inside the front insulation sleeve 2 corresponds to the sealing slot 6 inside the auxiliary connecting cylinder 9, and the positioning pin 5 corresponds to the positioning hole 7.

[0041] Push the insulation front sleeve 2 and insulation rear sleeve 3 along the pipeline axis to connect them, so that the inner cavity port of the auxiliary connecting cylinder 9 and the outer end face of the main connecting cylinder 8 form an axial fit. At this time, the sealing block 4 is fully inserted into the sealing slot 6, and the positioning pin 5 is simultaneously inserted into the positioning hole 7 to complete the initial sealing and axial positioning.

[0042] Hold the outer connecting handle 19 and push the guide rod 16 along the axis of the secondary connecting cylinder 9 so that the inner locking pin 17 passes through the inner wall of the secondary connecting cylinder 9 and the outer end face of the main connecting cylinder 8 in sequence, and enters the inner through hole 14 at the outer end of the guide rod 10. By rotating the outer connecting handle 19, the inner locking pin 17 is driven to rotate in the inner through hole 14, so that the inner locking block 18 on the surface of the inner locking pin 17 and the inner locking groove 15 at the end of the inner through hole 14 form a misaligned locking engagement.

[0043] Pulling the guide rod 16 outward by the outer connecting handle 19 causes the inner locking pin 17 to drive the guide rod 10 to move outward along the axis of the main connecting cylinder 8 through the inner through hole 14, and simultaneously compresses the reset spring 11. At this time, the limiting edge 12 on the upper and lower surfaces of the guide rod 10 slides along the limiting groove 13 on the inner wall of the main connecting cylinder 8 and the auxiliary connecting cylinder 9, limiting the offset or rotation of the guide rod 10.

[0044] When the outer locking block 22 on the surface of the guide rod 16 moves to the position of the annular connecting hole 20 on the inner wall of the auxiliary connecting cylinder 9, the outer connecting handle 19 is rotated to insert the outer locking block 22 into the outer locking groove 21 and form a misaligned locking connection, thus completing the axial fixation of the guide rod 16.

[0045] Release the outer connecting handle 19 so that the reset force of the reset spring 11 is transmitted to the inner locking post 17 through the guide main rod 10, causing the surface of the inner locking post 17 to fit tightly against the inner wall of the inner through hole 14. At the same time, the inner locking block 18 and the inner locking groove 15 remain locked together to prevent the guide main rod 10 and the guide secondary rod 16 from axially loosening.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe insulation sleeve installation mechanism for extremely cold regions, characterized in that, include: The insulation sleeve assembly (1), and the insulation front sleeve (2) and insulation rear sleeve (3) that make up the insulation sleeve assembly (1), and the surface of the insulation front sleeve (2) and the insulation rear sleeve (3) are respectively provided with a main connecting cylinder (8) and a secondary connecting cylinder (9), and the main connecting cylinder (8) and the secondary connecting cylinder (9) are in a corresponding positional relationship. The guide rod (10) is inserted into both sides of the inner cavity of the main connecting cylinder (8), and a return spring (11) is connected between the inner wall of the main connecting cylinder (8) and the surface of the guide rod (10), and an inner through hole (14) is opened at the outer end of the guide rod (10). The guide rod (16) is locked in the inner cavity of the auxiliary connecting cylinder (9), and the inner end and the outer end of the guide rod (16) are respectively equipped with an inner locking post (17) and an outer connecting handle (19), and the inner locking post (17) is locked and connected to the inner through hole (14).

2. The pipe insulation sleeve installation mechanism for extremely cold regions according to claim 1, characterized in that: The inner side of the insulation front sleeve (2) is respectively equipped with a sealing plug (4) and a positioning post (5), and the inner side of the auxiliary connecting cylinder (9) is respectively provided with a sealing slot (6) and a positioning hole (7).

3. The pipe insulation sleeve installation mechanism for extremely cold regions according to claim 2, characterized in that: The sealing plug (4) is inserted into the sealing slot (6), and the positioning post (5) is inserted into the positioning hole (7).

4. The pipe insulation sleeve installation mechanism for extremely cold regions according to claim 1, characterized in that: The main connecting cylinder (8) and the auxiliary connecting cylinder (9) have limit grooves (13) at the top and bottom of their inner walls, and limit edges (12) are slidably connected to the inner cavity of the limit grooves (13), and the limit edges (12) are connected to the upper and lower surfaces of the guide rod (10).

5. The pipe insulation sleeve installation mechanism for extremely cold regions according to claim 1, characterized in that: The outer end of each of the inner through holes (14) is provided with an inner slot (15), and an inner block (18) is evenly installed on the surface of the inner slot (17), and the inner block (18) is inserted into the inner slot (15).

6. The pipe insulation sleeve installation mechanism for extremely cold regions according to claim 1, characterized in that: The inner wall of the auxiliary connecting cylinder (9) is provided with a ring connecting hole (20), and an outer slot (21) is provided around the end of the ring connecting hole (20). An outer block (22) is evenly installed on the surface of the guide rod (16), and the outer block (22) is inserted into the outer slot (21).

Images