Thermal insulation steel pipe for spraying and winding polyurethane on heat distribution pipeline
By designing structures such as fixed blocks, limit holes, connecting rings and return springs on the spray-wrapped and wound polyurethane insulation steel pipes on the thermal pipeline, the problem of complex and low efficiency of steel pipe docking is solved, and rapid and stable docking is achieved, and working efficiency is improved.
Patent Information
- Application Number
- CN202422087672.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-27
AI Technical Summary
During thermal pipeline construction, the docking process of spray-wrapped and wound polyurethane insulation steel pipes is complicated and has many operating steps, which leads to prolonging working hours of staff and inefficient efficiency.
A spray-wrapped and wound polyurethane insulation steel pipe for thermal pipelines is designed, using fixed blocks, limit holes, connection rings, return springs and other structures. Through sliding, plugging and return springs, rapid docking between steel pipes is achieved.
The docking process is simplified, working time is shortened, working efficiency is improved, and the docking stability is enhanced through the design of the return spring.
Smart Images
Figure CN222977698U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thermal pipelines, in particular to a polyurethane thermal insulation steel pipe for spraying and winding on thermal pipelines. Background Technique
[0002] In the field of thermal pipeline construction, workers often use polyurethane thermal insulation steel pipes for spraying and winding; the structure of the polyurethane thermal insulation steel pipe for spraying and winding is stable. Through the winding technology, the polyurethane material can be tightly combined with the pipe surface to form a solid protective layer, enhancing the compressive capacity and service life of the pipeline. Its thermal insulation performance also helps to reduce energy consumption and achieve energy conservation and emission reduction; however, in the field of thermal pipeline construction, workers need to use the mutual cooperation between multiple groups of structures to dock the polyurethane thermal insulation steel pipes for spraying and winding. This process has many operation steps, is time-consuming and laborious, prolongs the working time of workers, and it is not easy to quickly dock the polyurethane thermal insulation steel pipes for spraying and winding by workers, indirectly affecting the work efficiency of workers. Content of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the utility model provides a polyurethane thermal insulation steel pipe for spraying and winding on thermal pipelines, which solves the problems raised in the above background technique.
[0004] To achieve the above object, the utility model provides the following technical solution: A polyurethane thermal insulation steel pipe for spraying and winding on thermal pipelines, including a steel pipe body, a thermal insulation layer and an outer protective layer. The outer surface of the steel pipe body is provided with a thermal insulation layer, and the outer surface of the thermal insulation layer is provided with an outer protective layer. A fixing block is fixedly connected to the right side of the outer surface of the steel pipe body. Limiting holes are opened on both the front and rear sides of the right side surface of the thermal insulation layer. A fixing ring is fixedly sleeved on the left side of the outer surface of the steel pipe body. A connecting ring is sleeved on the left side of the outer surface of the steel pipe body. A rotating groove is opened on the right side inner wall of the connecting ring. The fixing ring is rotationally connected with the rotating groove. A sliding groove is opened on the inner wall of the connecting ring. Through grooves are opened on both the top and bottom of the outer surface of the connecting ring. Limiting blocks are movably inserted on both the top and bottom of the left side surface of the connecting ring. A moving block is fixedly connected to the right side surface of the limiting block. A connecting block is fixedly connected to the outer surface of the moving block. The connecting block is slidably connected with the through groove. A transmission ring is fixedly connected to the outer side surface of the connecting block. The transmission ring is movably sleeved with the connecting ring. A hand-holding groove is opened on the outer surface of the transmission ring. A first short rod is fixedly connected to the right side surface of the moving block. A second short rod is fixedly connected to the inner wall on the right side of the connecting ring. A return spring is sleeved on the outer surfaces of the first short rod and the second short rod.
[0005] Preferably, the number of the limiting holes is set to two groups, and the inner diameters of the two groups of limiting holes are all adapted to the outer diameter of the limiting block.
[0006] Preferably, the number of the return springs is set to four groups, and the material of the four groups of return springs is all set to silicon manganese spring steel.
[0007] Preferably, a moving groove is provided inside the connecting ring, and the inner diameter of the moving groove is matched with the outer diameter of the moving block.
[0008] Preferably, the limiting block, the moving block, the connecting block, the transmission ring, the first short rod and the second short rod are all made of stainless steel.
[0009] Preferably, the number of the sliding grooves is set to two groups, and the inner diameters of the two groups of sliding grooves are both matched with the outer diameter of the fixing block.
[0010] Compared with the prior art, the utility model provides a polyurethane insulation steel pipe for spraying and winding heat pipes, which has the following beneficial effects:
[0011] 1. The invention is used for spraying and wrapping polyurethane insulated steel pipes for thermal pipelines. By controlling the fixed block to slide into the interior of the sliding groove, and then controlling the limit block to be inserted into the interior of the limit hole, two groups of steel pipe bodies can be docked. This process has fewer operating steps, saves time and effort, shortens the working time of the staff, enables the staff to quickly dock the steel pipe bodies, and indirectly improves the work efficiency of the staff.
[0012] 2. The polyurethane insulated steel pipe used for spraying and wrapping thermal pipelines can continuously extrude the moving block to the left side through the reaction force generated by the extrusion of the reset spring, so that the moving block can drive the limit block to move to the left along the inside of the connecting ring until the limit block passes through the left side of the connecting ring and is finally firmly inserted into the inside of the limit hole, which effectively improves the fixing effect between the connecting ring and the steel pipe body and indirectly ensures the stability of the docking between the two groups of steel pipe bodies. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 It is a schematic diagram of the partial structure decomposition of the utility model;
[0015] Figure 3 It is a schematic diagram of the partial structure of the utility model.
[0016] In the figure: 1. Steel pipe body; 2. Insulation layer; 3. Outer protective layer; 4. Fixed block; 5. Limiting hole; 6. Fixed ring; 7. Connecting ring; 8. Rotating groove; 9. Sliding groove; 10. Through groove; 11. Limiting block; 12. Moving block; 13. Connecting block; 14. Transmission ring; 15. Hand buckle groove; 16. First short rod; 17. Second short rod; 18. Reset spring. Detailed implementation manners
[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0018] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a polyurethane-insulated steel pipe for thermal pipeline spraying and winding, including a steel pipe body 1, a thermal insulation layer 2 and an outer protective layer 3. The outer surface of the steel pipe body 1 is provided with the thermal insulation layer 2, and the outer surface of the thermal insulation layer 2 is provided with the outer protective layer 3. A fixed block 4 is fixedly connected to the right side of the outer surface of the steel pipe body 1. By controlling the fixed block 4 to slide into the interior of the sliding groove 9, and then controlling the limiting block 11 to insert into the limiting hole 5, thus, the docking between two groups of steel pipe bodies 1 can be achieved. This process has fewer operation steps, saves time and effort, shortens the working time of the staff, realizes that the staff can quickly dock the steel pipe bodies 1, and indirectly improves the working efficiency of the staff. Limiting holes 5 are opened on both the front and rear sides of the right side surface of the thermal insulation layer 2. A fixed ring 6 is fixedly sleeved on the left side of the outer surface of the steel pipe body 1. A connecting ring 7 is sleeved on the left side of the outer surface of the steel pipe body 1. A rotating groove 8 is opened on the right side of the inner wall of the connecting ring 7. The fixed ring 6 is rotatably connected to the rotating groove 8. A sliding groove 9 is opened on the inner wall of the connecting ring 7. Through grooves 10 are opened on both the top and bottom of the outer surface of the connecting ring 7. Limiting blocks 11 are movably inserted into both the top and bottom of the left side surface of the connecting ring 7. A moving block 12 is fixedly connected to the right side surface of the limiting block 11. A connecting block 13 is fixedly connected to the outer surface of the moving block 12. The connecting block 13 is slidably connected to the through groove 10. A transmission ring 14 is fixedly connected to the outer side surface of the connecting block 13. The transmission ring 14 is movably sleeved on the connecting ring 7. A hand-holding groove 15 is opened on the outer surface of the transmission ring 14. A first short rod 16 is fixedly connected to the right side surface of the moving block 12. A second short rod 17 is fixedly connected to the inner wall on the right side of the connecting ring 7. A return spring 18 is sleeved on the outer surfaces of the first short rod 16 and the second short rod 17. Due to the reaction force generated by the compression of the return spring 18, the moving block 12 can be continuously extruded towards the left side surface, so that the moving block 12 can drive the limiting block 11 to move towards the left side along the interior of the connecting ring 7 until the limiting block 11 passes through the left side surface of the connecting ring 7 and finally firmly inserts into the limiting hole 5, effectively improving the fixing effect between the connecting ring 7 and the steel pipe body 1, and indirectly ensuring the stability of the docking between two groups of steel pipe bodies 1.
[0019] In order to facilitate the staff to control the limiting block 11 to insert into the limiting hole 5, the number of the limiting holes 5 is set to two groups, and the inner diameters of the two groups of limiting holes 5 are all adapted to the outer diameter of the limiting block 11, which facilitates the staff to control the limiting block 11 to insert into the limiting hole 5.
[0020] In order to extend the service life of the four reset springs 18, the number of the reset springs 18 is set to four groups, and the manufacturing materials of the four groups of reset springs 18 are all set to silicon manganese spring steel. The spring made of silicon manganese spring steel has a good return effect and is not easy to deform, which extends the service life of the four groups of reset springs 18.
[0021] In order to facilitate the moving block 12 to move along the inside of the connecting ring 7, a moving groove is opened inside the connecting ring 7, and the inner diameter of the moving groove is adapted to the outer diameter of the moving block 12, which facilitates the moving block 12 to move along the inside of the connecting ring 7.
[0022] In order to ensure that the limiting block 11, the moving block 12, the connecting block 13, the transmission ring 14, the first short rod 16 and the second short rod 17 are not easily damaged when in use, the manufacturing materials of the limiting block 11, the moving block 12, the connecting block 13, the transmission ring 14, the first short rod 16 and the second short rod 17 are all set to stainless steel. The stainless steel has a high hardness and is not easy to deform, which ensures that the limiting block 11, the moving block 12, the connecting block 13, the transmission ring 14, the first short rod 16 and the second short rod 17 are not easily damaged when in use.
[0023] In order to facilitate the staff to control the connecting ring to drive the sliding groove 9 to slide along the outer side surface of the fixed block 4, the number of the sliding grooves 9 is set to two groups, and the inner diameters of the two groups of sliding grooves 9 are all adapted to the outer diameter of the fixed block 4, which facilitates the staff to control the connecting ring to drive the sliding groove 9 to slide along the outer side surface of the fixed block 4.
[0024] All the electrical components appearing in this article are electrically connected to the external main controller and 220V mains power supply, and the main controller can be a conventional known device such as a computer for control.
[0025] In use, when the staff docks between two sets of this device, the staff controls the lifting equipment to lift one set of this device. Subsequently, the steel pipe body 1 is controlled to drive the sliding groove 9 on the connecting ring 7 to slide along the outer side surface of the fixed block 4 on the other set of this device, so that the connecting ring 7 slides along the outer surface of the steel pipe body 1 of the other set of this device. Since the limiting block 11 protrudes from the left side surface of the connecting ring 7, when the connecting ring 7 drives the limiting block 11 to move to the left, it will be squeezed by the other set of this device, causing the limiting block 11 to drive the moving block 12 and the first short rod 16 to move to the right along the inside of the connecting ring 7, and at the same time squeezing the return spring 18 to the right until the limiting block 11 is squeezed into the inside of the connecting ring 7, making the heat insulation layers 2 on the two sets of this device close together. Subsequently, the connecting ring 7 is controlled to drive the rotating groove 8 to rotate counterclockwise along the outer surface of the fixed ring 6, so that the connecting ring 7 drives the limiting block 11 to rotate to a position horizontal with the limiting hole 5. At the same time, the reaction force generated by the squeezing of the return spring 18 can drive the moving block 12 and the limiting block 11 to move to the left along the inside of the connecting ring 7 until the limiting block 11 is inserted into the inside of the limiting hole 5. Thus, the connection between the connecting ring 7 and the steel pipe body 1 can be fixed, and the docking between the two sets of this device is completed. Subsequently, the staff controls the hand buckle groove 15 to drive the transmission ring 14 to move to the right along the outer surface of the connecting ring 7, so that the transmission ring 14 drives the connecting block 13 to drive the moving block 12 and the limiting block 11 to move to the right along the inside of the connecting ring 7 along the inside of the through groove 10, and the limiting block can be moved out of the inside of the limiting hole 5, which is convenient for the staff to release the fixation between the two sets of this device.
[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A polyurethane insulated steel pipe for spraying and winding a thermal pipeline, comprising a steel pipe body (1), an insulation layer (2) and an outer sheath (3), characterized in that: The outer surface of the steel pipe body (1) is provided with an insulation layer (2), the outer surface of the insulation layer (2) is provided with an outer protective layer (3), the right side of the outer surface of the steel pipe body (1) is fixedly connected with a fixing block (4), the front and rear sides of the right side of the insulation layer (2) are provided with limiting holes (5), the left side of the outer surface of the steel pipe body (1) is fixedly sleeved with a fixing ring (6), the left side of the outer surface of the steel pipe body (1) is sleeved with a connecting ring (7), the right side of the inner wall of the connecting ring (7) is provided with a rotating groove (8), the fixing ring (6) is rotatably connected to the rotating groove (8), the inner wall of the connecting ring (7) is provided with a sliding groove (9), the top and bottom of the outer surface of the connecting ring (7) are provided with through grooves (10), the left side of the connecting ring (7) is provided with a fixing ring (6), and the fixing ring (6) is rotatably connected to the rotating groove (8). The top and bottom of the surface are both movably connected with a limit block (11); the right side surface of the limit block (11) is fixedly connected with a moving block (12); the outer surface of the moving block (12) is fixedly connected with a connecting block (13); the connecting block (13) is slidably connected to the through groove (10); the outer side surface of the connecting block (13) is fixedly connected with a transmission ring (14); the transmission ring (14) is movably sleeved with the connecting ring (7); the outer surface of the transmission ring (14) is provided with a hand buckle groove (15); the right side surface of the moving block (12) is fixedly connected with a first short rod (16); the inner wall of the right side of the connecting ring (7) is fixedly connected with a second short rod (17); the outer surfaces of the first short rod (16) and the second short rod (17) are sleeved with a return spring (18).
2. The polyurethane insulated steel pipe for spraying and winding heat pipes according to claim 1 is characterized in that: The number of the limiting holes (5) is set to two groups, and the inner diameters of the two groups of limiting holes (5) are both adapted to the outer diameter of the limiting block (11).
3. The polyurethane insulated steel pipe for spraying and winding heat pipes according to claim 1 is characterized in that: The number of the return springs (18) is set to four groups, and the material used to make the four groups of return springs (18) is all set to be silicon manganese spring steel.
4. The polyurethane insulated steel pipe for spraying and winding heat pipes according to claim 1 is characterized in that: A moving groove is provided inside the connecting ring (7), and the inner diameter of the moving groove is matched to the outer diameter of the moving block (12).
5. The polyurethane insulated steel pipe for spraying and winding heat pipes according to claim 1 is characterized in that: The materials used to make the limit block (11), the moving block (12), the connecting block (13), the transmission ring (14), the first short rod (16) and the second short rod (17) are all set to be stainless steel.
6. The polyurethane insulated steel pipe for spraying and winding heat pipes according to claim 1, characterized in that: The number of the sliding grooves (9) is set to two groups, and the inner diameters of the two groups of sliding grooves (9) are both adapted to the outer diameter of the fixed block (4).