A pipeline thermal insulation sheath

Abstract

The present invention discloses a pipeline heat-insulating sheath, which comprises a first sheath and a second sheath. The cross-sectional shapes of both the first sheath and the second sheath are semi-annular. The first sheath and the second sheath cooperate with each other to form a hollow tubular structure. One side of the first sheath is hinged to one side of the second sheath. A fixing buckle is provided on the other side of the first sheath, and the fixing buckle is rotatably connected to the first sheath. A fine-tuning mechanism is provided on the other side of the second sheath, and a clamping groove matching the fixing buckle is provided on the fine-tuning mechanism. The beneficial effects of the present invention are as follows: The heat-insulating sheath can be automatically adjusted and tightened according to the outer diameter of the pipeline, has a high matching degree with the pipeline and good heat-insulating effect; According to the length of the pipeline, length adjustment can be realized; It has good waterproof performance and strong practicability.

Description

Technical Field

[0001] The present invention relates to the technical field related to heat preservation, and particularly to a pipeline heat preservation sheath. Background Art

[0002] The heat preservation sheath usually installed on the outside of high-temperature pipeline heat preservation is made of color steel plate or aluminum plate, and there is a hard contact between each section of the outer sheath. Since it is inevitable to have dimensional errors in the production of the heat preservation sheath, it often makes the matching degree of the heat preservation sheath with the pipeline poor in actual application, resulting in the problem of inability to install; at the same time, because the thermal pipeline will have an axial expansion amount under high-temperature conditions, it will generate an axial tensile force on the traditional heat preservation sheath, resulting in a break at the interface of each section of the traditional heat preservation sheath, causing phenomena such as water absorption in the internal heat preservation layer and reducing the heat preservation ability. Summary of the Invention

[0003] The present invention is to overcome the problem that the heat preservation sheath in the prior art has a poor matching degree with the pipeline due to dimensional errors and the thermal expansion and contraction of the pipeline, and provides a pipeline heat preservation sheath with a good matching degree with the pipeline.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A pipeline heat preservation sheath, which includes sheath one and sheath two. The cross-sectional shapes of both sheath one and sheath two are semi-circular rings. Sheath one and sheath two cooperate with each other to form a hollow tubular structure. One side of sheath one is hinged to one side of sheath two. The other side of sheath one is provided with a fixed buckle, and the fixed buckle is rotatably connected to sheath one. The other side of sheath two is provided with a fine-tuning mechanism, and a slot matching the fixed buckle is provided on the fine-tuning mechanism.

[0006] The cross-sectional shapes of both sheath one and sheath two are semi-circular rings. Sheath one and sheath two cooperate with each other to form a hollow tubular structure. One side of sheath one is hinged to one side of sheath two. The other side of sheath one is provided with a fixed buckle, and the fixed buckle is rotatably connected to sheath one. The other side of sheath two is provided with a fine-tuning mechanism, and a slot matching the fixed buckle is provided on the fine-tuning mechanism. Sheath one and sheath two are wrapped around the outer side of the pipeline. By matching the fixed buckle with the slot on the fine-tuning mechanism, sheath one and sheath two are closed. The fine-tuning mechanism can automatically adjust and tighten according to the size of the pipeline outer diameter, achieving the purpose of good matching with the pipeline.

[0007] Preferably, the fixing buckle is located at the middle position of the first sheath. One side of the first sheath is hinged to the second sheath. On the other side of the first sheath, there are two L-shaped opening grooves, both of which are located on the inner side wall of the first sheath. The two L-shaped opening grooves are respectively located on both sides of the fixing buckle. On the inner side wall of the second sheath, there are stoppers matching the L-shaped opening grooves. Such a design is beneficial to preventing rainwater from directly seeping into the thermal insulation sheath and ensuring the thermal insulation effect of the thermal insulation sheath.

[0008] Preferably, the fixing buckle includes a buckle plate. The cross-sectional shape of the buckle plate is arc-shaped. There is a first rotating shaft on the buckle plate. The first buckle plate is rotationally connected to the first sheath through the first rotating shaft. A torsion spring is sleeved on the first rotating shaft. There are two spring arms on the torsion spring. One of the spring arms is located on the outer side wall of the first sheath, and the other spring arm is located on the outer side wall of the buckle plate. On the inner side wall of the buckle plate, there is a connecting block matching the card slot. There are grooves one on both sides of the connecting block. A locking component is arranged in the groove one. The design of the torsion spring is beneficial to improving the fitting tightness between the fixing buckle and the card slot on the fine-tuning mechanism, preventing the fixing buckle from disengaging from the card slot, and thus preventing the thermal insulation sheath from falling off.

[0009] Preferably, the outer diameter of the buckle plate is the same as that of the first sheath, and the central axis of the buckle plate and the central axis of the first sheath are the same axis. Such a design is beneficial to improving the fitting degree of the buckle plate with the first sheath and the second sheath respectively and enhancing the waterproof property of the thermal insulation sheath.

[0010] Preferably, the locking component includes a locking pin and a spring. One end of the spring is fixedly connected to the bottom of the groove one, and the other end of the spring is fixedly connected to the central position of the bottom end of the locking pin. On both sides of the bottom end of the locking pin, there are sliding blocks. In the groove one, there are sliding grooves matching the sliding blocks. The locking pin is installed in the groove one through the cooperation of the sliding blocks and the sliding grooves. The shape of the top end of the locking pin is semi-circular. In the card slot, there is a locking groove matching the top end of the locking pin. Under the action of the torsion spring, the locking pin on the connecting block is inserted into the locking groove to lock; the locking pin is slidably connected through the sliding blocks and the sliding grooves, which can prevent the spring from deforming during the locking or unlocking process of the locking pin and extend the service life of the spring; the shape of the top end of the locking pin is semi-circular, which is convenient for the locking pin to play a good guiding role when inserting or pulling out of the locking groove.

[0011] Preferably, the fine-tuning mechanism includes an adjusting plate. The cross-sectional shape of the adjusting plate is arc-shaped, and the central axis of the adjusting plate coincides with the central axis of the second sheath. The second sheath is provided with an adjusting groove matching the adjusting plate. One end of the adjusting plate is located in the adjusting groove. A number of uniformly distributed racks are provided at the end of the adjusting plate located in the adjusting groove. The other end of the adjusting plate is located outside the adjusting groove, and the clamping groove is located at the other end of the adjusting plate. A second groove is provided in the adjusting groove, and an adjusting gear matching the rack is provided in the second groove. The shape design of the adjusting plate is beneficial to improving the fitting tightness between the adjusting plate and the buckling plate, enhancing the waterproof property of the heat preservation sheath, and facilitating the connection between the buckling plate and the adjusting plate through the locking component; the adjusting gear cooperates with the rack on the adjusting plate, and according to the outer diameter of the pipeline, the adjusting plate automatically makes fine adjustments, so that the inner wall of the heat preservation sheath closely adheres to the outer wall of the pipeline, which well solves the problem of poor matching with the pipeline due to dimensional errors generated during the production of the heat preservation sheath and the thermal expansion and contraction of the pipeline, improves the practicability of the heat preservation sheath, and greatly extends the service life of the heat preservation sheath.

[0012] Preferably, the adjusting gear includes a gear body meshing with the rack. A second rotating shaft and a hairspring are provided inside the gear body. Both ends of the second rotating shaft are fixedly connected to the inner side walls of the second groove. The shape of the hairspring is spiral. The hairspring is sleeved on the second rotating shaft and is located between the second rotating shaft and the gear body. One end of the hairspring is connected to the second rotating shaft, and the other end of the hairspring is connected to the gear body. The gear body meshes with the rack on the adjusting plate. The connecting block on the buckling plate is inserted into the clamping groove, and the locking pin is inserted into the locking groove for locking. At this time, if the pipeline diameter is greater than the inner diameter of the heat preservation sheath, the adjusting plate moves outwards, and the gear body drives one end of the rack to rotate. The other end of the rack is fixed to the second rotating shaft. At this time, the gear body and the adjusting plate are tightened through the rack, so that the heat preservation sheath tightly wraps the outer wall of the pipeline, achieving a good heat preservation effect, and vice versa.

[0013] Preferably, the sizes and structures of one ends of the first sheath and the second sheath are the same. A first step surface is provided on the outer side of one end of the first sheath. The outer diameter of the first step surface is smaller than the outer diameter of the first sheath. A number of limiting grooves are provided on the first step surface. The sizes and structures of the other ends of the first sheath and the second sheath are the same. A second step surface matching the first step surface is provided on the inner side of the other end of the first sheath. A number of limiting bars matching the limiting grooves are provided on the second step surface. When multiple heat preservation sheaths are connected, according to the length of the pipeline, the length adjustment can be realized through installation between the two heat preservation sheaths, and meanwhile, the waterproof property at the connection of the two heat preservation sheaths is greatly improved.

[0014] Preferably, a number of limiting grooves are uniformly distributed along the central axis direction of the first sheath. Such a design facilitates the length adjustment between multiple heat preservation sheaths.

[0015] The beneficial effects of the present invention are as follows: The thermal insulation sheath can be automatically adjusted and tightened according to the outer diameter of the pipeline, with high matching degree with the pipeline and good thermal insulation effect; it can be adjusted in length according to the length of the pipeline, and the length can be adjusted; it has good waterproof performance and strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a schematic structural diagram of the connection between the first sheath and the second sheath;

[0018] Figure 3 is Figure 2 the enlarged structural view of part A in

[0019] Figure 4 is Figure 2 the enlarged structural view of part B in

[0020] Figure 5 is a schematic structural diagram of the connection between two thermal insulation sheaths;

[0021] Figure 6 is a schematic structural diagram of the connection during the extended installation between two thermal insulation sheaths.

[0022] In the figure: 1. The first sheath, 2. The second sheath, 3. Fixed buckle, 4. Fine adjustment mechanism, 5. Card slot, 6. L-shaped opening groove, 7. Block, 8. Clamping plate, 9. First rotating shaft, 10. Torsion spring, 11. Spring arm, 12. Connecting block, 13. First groove, 14. Locking component, 15. Locking pin, 16. Spring, 17. Slide block, 18. Slide groove, 19. Locking groove, 20. Adjusting plate, 21. Adjusting groove, 22. Rack, 23. Adjusting gear, 24. Gear body, 25. Second rotating shaft, 26. Hairspring, 27. First step surface, 28. Limiting groove, 29. Second step surface, 30. Limiting strip, 31. Second groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0024] As Figure 1 in the described embodiment, a pipeline thermal insulation sheath includes a first sheath 1 and a second sheath 2. The cross-sectional shapes of the first sheath 1 and the second sheath 2 are both semi-circular rings. The first sheath 1 and the second sheath 2 cooperate with each other to form a hollow tubular structure. One side of the first sheath 1 is hinged to one side of the second sheath 2. A fixed buckle 3 is provided on the other side of the first sheath 1, and the fixed buckle 3 is rotatably connected to the first sheath 1. As Figure 2 shown, a fine adjustment mechanism 4 is provided on the other side of the second sheath 2, and a card slot 5 matching the fixed buckle 3 is provided on the fine adjustment mechanism 4.

[0025] As Figure 1 shown, the fixing buckle 3 is located at the middle position of the first sheath 1. One side of the first sheath 1 is hinged to the second sheath 2. The other side of the first sheath 1 is provided with two L-shaped opening grooves 6. Both of the two L-shaped opening grooves 6 are located on the inner side wall of the first sheath 1. The two L-shaped opening grooves 6 are respectively located on both sides of the fixing buckle 3. A stop block 7 matching the L-shaped opening groove 6 is provided on the inner side wall of the second sheath 2.

[0026] As Figure 3 shown, the fixing buckle 3 includes a buckle plate 8. The cross-sectional shape of the buckle plate 8 is arc-shaped. A first rotating shaft 9 is provided on the buckle plate 8. One end of the buckle plate 8 is rotatably connected to the first sheath 1 through the first rotating shaft 9. A torsion spring 10 is sleeved on the first rotating shaft 9. Two spring arms 11 are provided on the torsion spring 10. One of the spring arms 11 is located on the outer side wall of the first sheath 1, and the other spring arm 11 is located on the outer side wall of the buckle plate 8. A connecting block 12 matching the clamping groove 5 is provided on the inner side wall of the buckle plate 8. Grooves 13 are provided on both sides of the connecting block 12. A locking component 14 is provided in the groove 13.

[0027] As Figure 2 shown, the outer diameter of the buckle plate 8 is the same as the outer diameter of the first sheath 1. The central axis of the buckle plate 8 and the central axis of the first sheath 1 are on the same axis.

[0028] As Figure 3 shown, the locking component 14 includes a locking pin 15 and a spring 16. One end of the spring 16 is fixedly connected to the bottom of the groove 13. The other end of the spring 16 is fixedly connected to the central position of the bottom end of the locking pin 15. Sliders 17 are provided on both sides of the bottom end of the locking pin 15. A sliding groove 18 matching the slider 17 is provided in the groove 13. The locking pin 15 is installed in the groove 13 through the cooperation of the slider 17 and the sliding groove 18. The shape of the top end of the locking pin 15 is semi-circular. A locking groove 19 matching the top end of the locking pin 15 is provided in the clamping groove 5.

[0029] As Figure 2 shown, the fine adjustment mechanism 4 includes an adjusting plate 20. The cross-sectional shape of the adjusting plate 20 is arc-shaped. The central axis of the adjusting plate 20 and the central axis of the second sheath 2 are on the same axis. An adjusting groove 21 matching the adjusting plate 20 is provided on the second sheath 2. One end of the adjusting plate 20 is located in the adjusting groove 21. A plurality of uniformly distributed rack teeth 22 are provided at the end of the adjusting plate 20 located in the adjusting groove 21. The other end of the adjusting plate 20 is located outside the adjusting groove 21. The clamping groove 5 is located at the other end of the adjusting plate 20. As Figure 4 shown, a groove 31 is provided in the adjusting groove 21. An adjusting gear 23 matching the rack teeth 22 is provided in the groove 31.

[0030] As Figure 4As shown, the adjusting gear 23 includes a gear body 24 meshing with the rack 22. A second rotating shaft 25 and a hairspring 26 are arranged inside the gear body 24. Both ends of the second rotating shaft 25 are fixedly connected to the inner side walls of the second grooves 31. The hairspring 26 is in a spiral shape. The hairspring 26 is sleeved on the second rotating shaft 25 and is located between the second rotating shaft 25 and the gear body 24. One end of the hairspring 26 is connected to the second rotating shaft 25, and the other end of the hairspring 26 is connected to the gear body 24.

[0031] As Figure 1 , Figure 5 , Figure 6 As shown, the sizes and structures of one end of the first sheath 1 and one end of the second sheath 2 are the same. A first step surface 27 is arranged on the outer side of one end of the first sheath 1. The outer diameter of the first step surface 27 is smaller than the outer diameter of the first sheath 1. A plurality of limiting grooves 28 are arranged on the first step surface 27. The sizes and structures of the other end of the first sheath 1 and the other end of the second sheath 2 are the same. A second step surface 29 matching the first step surface 27 is arranged on the inner side of the other end of the first sheath 1. A plurality of limiting strips 30 matching the limiting grooves 28 are arranged on the second step surface 29. The plurality of limiting grooves 28 are evenly distributed along the central axis direction of the first sheath 1.

[0032] During use, the first sheath 1 and the second sheath 2 are wrapped around the outer side of the pipeline. Under the action of the torsion spring 10, the connecting block 12 on the buckle plate 8 is inserted into the clamping groove 5, and the locking pin 15 on the connecting block 12 is inserted into the locking groove 19 to lock, closing the first sheath 1 and the second sheath 2. The gear body 24 cooperates with the rack 22 on the adjusting plate 20. According to the outer diameter of the pipeline, the adjusting plate 20 drives the gear body 24 to automatically fine-tune, so that the inner wall of the thermal insulation sheath closely adheres to the outer wall of the pipeline. The gear body 24 meshes with the rack 22 on the adjusting plate 20. At this time, if the pipeline diameter is larger than the inner diameter of the thermal insulation sheath, the adjusting plate 20 moves outwards. The gear body 24 drives one end of the rack 22 to rotate. The other end of the rack 22 is fixed on the second rotating shaft 25. At this time, the gear body 24 and the adjusting plate 20 are tightened by the rack 22, so that the thermal insulation sheath tightly wraps the outer wall of the pipeline, achieving a good thermal insulation effect, and vice versa.

[0033] When multiple thermal insulation sheaths are connected, according to the length of the pipeline, the length adjustment can be realized through installation between two thermal insulation sheaths, and meanwhile, the waterproof performance at the connection of the two thermal insulation sheaths is greatly improved.

Claims

1. A pipeline thermal insulation sheath, characterized in that It includes a first sheath (1) and a second sheath (2). The cross-sectional shapes of both the first sheath (1) and the second sheath (2) are semi-annular. The first sheath (1) and the second sheath (2) cooperate with each other to form a hollow tubular structure. One side of the first sheath (1) is hinged to one side of the second sheath (2). A fixing buckle (3) is provided on the other side of the first sheath (1). The fixing buckle (3) is rotatably connected to the first sheath (1). A fine-tuning mechanism (4) is provided on the other side of the second sheath (2). A card slot (5) matching the fixing buckle (3) is provided on the fine-tuning mechanism (4); The fixing buckle (3) includes a buckle plate (8). The cross-sectional shape of the buckle plate (8) is arc-shaped. A first rotating shaft (9) is provided on the buckle plate (8). The buckle plate (8) is rotatably connected to the first sheath (1) through the first rotating shaft (9). A torsion spring (10) is sleeved on the first rotating shaft (9). Two spring arms (11) are provided on the torsion spring (10). One spring arm (11) is located on the outer side wall of the first sheath (1), and the other spring arm (11) is located on the outer side wall of the buckle plate (8). A connecting block (12) matching the card slot (5) is provided on the inner side wall of the buckle plate (8). Grooves (13) are provided on both sides of the connecting block (12). A locking component (14) is provided in the groove (13); The locking component (14) includes a locking pin (15) and a spring (16). One end of the spring (16) is fixedly connected to the bottom of the groove (13), and the other end of the spring (16) is fixedly connected to the center position of the bottom end of the locking pin (15). Sliders (17) are provided on both sides of the bottom end of the locking pin (15). A sliding groove (18) matching the slider (17) is provided in the groove (13). The locking pin (15) is installed in the groove (13) through the cooperation of the slider (17) and the sliding groove (18). The top end of the locking pin (15) is semi-circular in shape. A locking groove (19) matching the top end of the locking pin (15) is provided in the card slot (5); The fine-tuning mechanism (4) includes an adjusting plate (20). The cross-sectional shape of the adjusting plate (20) is arc-shaped. The central axis of the adjusting plate (20) is the same axis as the central axis of the second sheath (2). An adjusting groove (21) matching the adjusting plate (20) is provided on the second sheath (2). One end of the adjusting plate (20) is located in the adjusting groove (21). A number of uniformly distributed rack teeth (22) are provided at the end of the adjusting plate (20) located in the adjusting groove (21). The other end of the adjusting plate (20) is located outside the adjusting groove (21). The card slot (5) is located at the other end of the adjusting plate (20). A groove (31) is provided in the adjusting groove (21). An adjusting gear (23) matching the rack teeth (22) is provided in the groove (31);The adjusting gear (23) includes a gear body (24) meshing with the rack (22). A second rotating shaft (25) and a clockwork spring (26) are arranged inside the gear body (24). Both ends of the second rotating shaft (25) are fixedly connected to the inner side walls of the second grooves (31). The clockwork spring (26) is in a spiral shape. The clockwork spring (26) is sleeved on the second rotating shaft (25) and is located between the second rotating shaft (25) and the gear body (24). One end of the clockwork spring (26) is connected to the second rotating shaft (25), and the other end of the clockwork spring (26) is connected to the gear body (24).; 2. The pipeline heat preservation sheath according to claim 1, characterized in that, The fixing buckle (3) is located at the middle position of the first sheath (1). One side of the first sheath (1) is hinged to the second sheath (2). The other side of the first sheath (1) is provided with two L-shaped opening grooves (6). Both of the two L-shaped opening grooves (6) are located on the inner side wall of the first sheath (1). The two L-shaped opening grooves (6) are respectively located on both sides of the fixing buckle (3). A stop block (7) matching the L-shaped opening groove (6) is provided on the inner side wall of the second sheath (2).

3. A pipeline heat insulation sheath according to claim 1, characterized in that, The outer diameter of the buckling plate (8) is the same as that of the first sheath (1). The central axis of the buckling plate (8) and the central axis of the first sheath (1) are on the same axis.

4. A pipeline heat insulation sheath according to claim 1 or 2 or 3, characterized in that, One end of the first sheath (1) and one end of the second sheath (2) have the same size and structure. A first step surface (27) is provided on the outer side of one end of the first sheath (1). The outer diameter of the first step surface (27) is smaller than the outer diameter of the first sheath (1). A plurality of limiting grooves (28) are provided on the first step surface (27). The other end of the first sheath (1) and the other end of the second sheath (2) have the same size and structure. A second step surface (29) matching the first step surface (27) is provided on the inner side of the other end of the first sheath (1). A plurality of limiting strips (30) matching the limiting grooves (28) are provided on the second step surface (29).

5. The pipe heat insulation sheath according to claim 4, characterized in that, The plurality of limiting grooves (28) are uniformly distributed along the central axis direction of the first sheath (1).

Images