Thin-wall heat preservation stainless steel pipe

Abstract

The utility model relates to the technical field of stainless steel pipes, in particular to a thin-wall heat preservation stainless steel pipe which comprises a first stainless steel pipe and a second stainless steel pipe, inner pipes are fixedly installed in the first stainless steel pipe and the second stainless steel pipe, and a heat preservation layer is fixedly connected to the inner wall of the first stainless steel pipe. A buffering mechanism is arranged between the inner wall of the heat preservation layer and the outer wall of the inner pipe, one end of the first stainless steel pipe and one end of the second stainless steel pipe are fixedly connected with first connecting rings, and the other end of the first stainless steel pipe and the other end of the second stainless steel pipe are fixedly connected with second connecting rings. The buffering mechanism can assist in pushing the sunken part of the buffering layer to restore the initial state, so that the impact force borne by the first stainless steel pipe and the second stainless steel pipe is well buffered, the service life is prolonged, a worker can conveniently connect and fix the first stainless steel pipe and the second stainless steel pipe, and the working efficiency is improved. And the high sealing and heat preservation performance of the joint of the first stainless steel pipe and the second stainless steel pipe can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipes, in particular to a thin-wall heat-insulating stainless steel pipe. Background Art

[0002] Stainless steel pipe is a hollow, long, round steel strip, which is widely used in industrial pipelines such as petroleum, chemical, medical, food, light industry and mechanical instruments, as well as mechanical structural components. Thin-walled stainless steel pipe refers to a stainless steel pipe with a wall thickness to outer diameter ratio of no more than six percent.

[0003] In the prior art, there is a garden tree straightening device proposed in patent application number "CN202420497662.3". The utility model solves the problem that the insulation structure used in the existing stainless steel pipe is usually coated with a simple insulation layer, and its insulation effect is poor. In addition, the strength of the stainless steel pipe is relatively poor during use, and it is easy to deform due to collision, which is not conducive to people's use.

[0004] During the transportation or installation of stainless steel pipes, they are inevitably subject to external impact forces. For example, the stainless steel pipes collide with each other during transportation. The above-mentioned patent application only provides support bars and support rings to reinforce the stainless steel pipes, which cannot buffer the impact forces received by the stainless steel pipes. As a result, the stainless steel pipes are easily damaged by external impact forces, affecting their service life. Utility Model Content

[0005] The purpose of the utility model is to provide a thin-walled heat-insulating stainless steel pipe to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A thin-walled thermal insulation stainless steel pipe, comprising a first stainless steel pipe and a second stainless steel pipe, wherein an inner pipe is fixedly installed inside each of the first and second stainless steel pipes, an insulation layer is fixedly connected to the inner wall of the first stainless steel pipe, a buffer mechanism is provided between the inner wall of the insulation layer and the outer wall of the inner pipe, a first connecting ring is fixedly connected to one end of each of the first stainless steel pipe and the second stainless steel pipe, a second connecting ring is fixedly connected to the other end of each of the first stainless steel pipe and the second stainless steel pipe, and a connecting mechanism is provided between the first and second connecting rings;

[0008] The buffer mechanism includes a buffer layer, a plurality of buffer pads and a plurality of spring sheets. The buffer layer is fixedly connected to the inner wall of the insulation layer. The plurality of buffer pads and spring sheets are fixedly connected between the buffer layer and the inner tube. A buffer connecting rod is inserted into the outer side wall of the spring sheet.

[0009] Preferably, one end of the buffer connecting rod is fixedly connected to the buffer layer, a buffer insert rod is inserted into one end of the buffer connecting rod, and the buffer insert rod is fixedly connected to the inner tube away from one end of the buffer connecting rod.

[0010] Preferably, a buffer spring 1 is sleeved on the outside of the buffer rod and the buffer connecting rod, and both ends of the buffer spring 1 are fixedly connected to the two inner side walls of the elastic sheet respectively, and a buffer spring 2 is installed between one end of the buffer rod and the inner top of the buffer connecting rod.

[0011] Preferably, the connecting mechanism includes a rotating frame, an L-shaped fixing plate, an insert ring and an annular slot, the rotating frame is rotatably connected to the outer wall position of the connecting ring 2, the L-shaped fixing plate is fixedly connected to the outer wall position of the connecting ring 1, the insert ring is fixedly connected to one end position of the connecting ring 2, the annular slot is opened at one end position of the connecting ring 1, and the insert ring fits in the annular slot.

[0012] Preferably, both ends of the rotating frame are fixedly connected with telescopic connecting rods, one end of the telescopic connecting rod away from the rotating frame is fixedly connected with a limit clamping plate, and the outsides of the two telescopic connecting rods are both sleeved with support springs.

[0013] Preferably, a fixing groove is provided on the inner wall of the limiting card plate, an insert block is fixedly connected to the inner side wall of the limiting card plate, and the insert block fits in the fixing groove.

[0014] Preferably, an annular movable groove is provided on the outer wall of the insert ring, an annular connecting plate is movably installed inside the annular movable groove, a sealing gasket is fixedly connected to the outer wall of the annular connecting plate, an annular sealing groove is provided on the inner wall of the connecting ring, and the annular sealing groove fits with the sealing gasket, and several reset springs are installed between the inner wall of the annular connecting plate and the inner wall of the insert ring.

[0015] Beneficial effects of the utility model:

[0016] 1. The utility model provides a buffer layer and a buffer pad to bear the external impact force, and cooperates with the elastic force of the spring buffer spring 1 and the buffer spring 2 to make the buffer rod move outward from the buffer connecting rod, pushing the recessed part of the buffer layer to restore to its original state. At the same time, the rebound force of the spring and the buffer pad can help push the recessed part of the buffer layer to restore to its original state, thereby effectively buffering the impact force received by the stainless steel pipe 1. Similarly, it can buffer the impact force received by the stainless steel pipe 2 and extend its service life.

[0017] 2. The utility model inserts the insert ring into the annular slot, and under the action of the elastic force of the reset spring and the resilience of the sealing gasket, one end of the sealing gasket can be stuck in the annular sealing groove, thereby filling and sealing the gap between the connecting ring 1 and the connecting ring 2, effectively improving the sealing when the stainless steel pipe 1 is connected to the stainless steel pipe 2, and by inserting the limiting card plate into the interior of the L-shaped fixing plate, the insert block is inserted into the fixing groove, completing the connection and fixation of the limiting card plate and the L-shaped fixing plate, thereby connecting and fixing the connecting ring 1 and the connecting ring 2, completing the connection and fixation of the stainless steel pipe 1 and the stainless steel pipe 2, and similarly, multiple stainless steel pipes 1 and 2 can be connected and fixed. Through the above operation, it is convenient for the staff to connect and fix multiple stainless steel pipes 1 and 2, and can ensure the high sealing and thermal insulation performance of the connection between the stainless steel pipe 1 and the stainless steel pipe 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, it is possible for a person skilled in the art to derive other drawings based on these drawings without inventive effort.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic structural diagram of a stainless steel pipe in the present invention;

[0021] Figure 3 This is a cross-sectional view of the stainless steel pipe, the insulation layer and the buffer layer in the utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 It is a cross-sectional view of the connecting ring 1 and the connecting ring 2 in the utility model;

[0024] Figure 6 It is a cross-sectional view of the insert ring of the utility model;

[0025] Figure 7 This is a partial structural diagram of the connecting ring 1 and the connecting ring 2 in the present invention;

[0026] Figure 8 This is a partial structural diagram of the stainless steel pipe 2 in the present utility model;

[0027] Figure 9 This utility model Figure 8 Enlarged view of point B in the middle.

[0028] The reference numerals in the figures are as follows:

[0029] 1. Stainless steel tube 1; 2. Stainless steel tube 2; 3. Connecting ring 1; 4. Connecting ring 2; 5. Insulation layer; 6. Buffer layer; 7. Buffer pad; 8. Shrapnel; 9. Buffer rod; 10. Buffer connecting rod; 11. Insert ring; 12. Annular slot; 13. Sealing pad; 14. Annular movable groove; 15. Annular connecting plate; 16. Rotating frame; 17. Telescopic connecting rod; 18. Limiting card plate; 19. L-shaped fixing plate; 20. Insert block; 21. Fixing groove; 22. Inner tube; 23. Annular sealing groove. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] A thin-walled insulated stainless steel pipe, such as Figures 1-9 As shown, it includes a stainless steel tube 1 and a stainless steel tube 2, and an inner tube 22 is fixedly installed inside the stainless steel tube 1 and the stainless steel tube 22. The inner wall of the stainless steel tube 1 is fixedly connected to the insulation layer 5, and a buffer mechanism is arranged between the inner wall of the insulation layer 5 and the outer wall of the inner tube 22. One end of the stainless steel tube 1 and the stainless steel tube 2 is fixedly connected to a connecting ring 1, and the other end of the stainless steel tube 1 and the stainless steel tube 2 is fixedly connected to a connecting ring 2 4. A connecting mechanism is arranged between the connecting ring 1 3 and the connecting ring 2 4. The buffer mechanism includes a buffer layer 6, a plurality of buffer pads 7 and a plurality of springs 8. The buffer layer 6 is fixedly connected to the inner wall of the insulation layer 5, and the plurality of buffer pads 7 and the springs 8 are fixedly connected between the buffer layer 6 and the inner tube 22. A buffer connecting rod 10 is inserted into the outer wall of the spring 8.

[0032] One end of the buffer connecting rod 10 is fixedly connected to the buffer layer 6, and a buffer plug rod 9 is inserted into one end of the buffer connecting rod 10. The buffer plug rod 9 is fixedly connected to the inner tube 22 at one end away from the buffer connecting rod 10. A buffer spring 1 is sleeved on the outside of the buffer plug rod 9 and the buffer connecting rod 10, and the two ends of the buffer spring 1 are respectively fixedly connected to the two inner side walls of the spring piece 8. A buffer spring 2 is installed between one end of the buffer plug rod 9 and the top end of the inside of the buffer connecting rod 10.

[0033] When in use, the thermal insulation layer 5 is provided to improve the thermal insulation effect of the inner tube 22, and the overall thermal insulation effect is improved. When the stainless steel tube is subjected to external impact force, the force acts on the stainless steel tube 1, causing the stainless steel tube 1 to deform, and acts on the thermal insulation layer 5 and the buffer layer 6, causing the buffer layer 6 to deform and recess toward the inner tube 22. Each buffer pad 7 is compressed, and the spring piece 8 is pressed and deformed at the same time. At the same time, the buffer rod 9 contracts toward the inside of the buffer connecting rod 10, and the buffer spring 1 and the buffer spring 2 are compressed. Then, under the elastic force of the buffer spring 1 and the buffer spring 2, the buffer rod 9 moves toward the outside of the buffer connecting rod 10, pushing the recessed part of the buffer layer 6 to return to its original state. In this process, the rebound force of the spring piece 8 and the buffer pad 7 can assist in pushing the recessed part of the buffer layer 6 to return to its original state, thereby effectively buffering the impact force received by the stainless steel tube 1 and extending its service life. Similarly, the impact force of the stainless steel tube 2 can be buffered.

[0034] like Figure 5-Figure 9 The connecting mechanism includes a rotating frame 16, an L-shaped fixing plate 19, an insert ring 11 and an annular slot 12. The rotating frame 16 is rotatably connected to the outer wall position of the connecting ring 24, the L-shaped fixing plate 19 is fixedly connected to the outer wall position of the connecting ring 13, the insert ring 11 is fixedly connected to one end position of the connecting ring 24, the annular slot 12 is opened at one end position of the connecting ring 13, and the insert ring 11 fits in the annular slot 12. Both ends of the rotating frame 16 are fixedly connected with a telescopic connecting rod 17, and the telescopic connecting rod 17 is fixedly connected to a limited card plate at one end away from the rotating frame 16. 18. The outside of the two telescopic links 17 are both sleeved with support springs, and the inner wall of the limit card plate 18 is provided with a fixing groove 21. The inner wall of the limit card plate 18 is fixedly connected with an insert block 20, and the insert block 20 fits in the fixing groove 21. Under the action of the support spring elastic force, the telescopic link 17 is shortened, and the limit card plate 18 moves toward the direction close to the L-shaped fixing plate 19, so that the limit card plate 18 is stuck in the inside of the L-shaped fixing plate 19, and the insert block 20 is inserted into the fixing groove 21, which can complete the connection and fixation of the limit card plate 18 and the L-shaped fixing plate 19.

[0035] An annular movable groove 14 is provided on the outer wall of the insert ring 11, and an annular connecting plate 15 is movably installed inside the annular movable groove 14. A sealing gasket 13 is fixedly connected to the outer wall of the annular connecting plate 15. An annular sealing groove 23 is provided on the inner wall of the connecting ring 3, and the annular sealing groove 23 fits with the sealing gasket 13. Several reset springs are installed between the inner wall of the annular connecting plate 15 and the inner wall of the insert ring 11. The sealing gasket 13 and the annular connecting plate 15 are both made of rubber. The annular movable groove 14 has enough space for the sealing gasket 13 to be stored after deformation. Under the elastic force of each reset spring and the rebound force of the sealing gasket 13, one end of the sealing gasket 13 can be stuck in the annular sealing groove 23 to fill and seal the gap between the connecting ring 1 3 and the connecting ring 2 4.

[0036] Specifically, when it is necessary to connect the two stainless steel pipes, the connecting ring 24 connected to one end of the stainless steel pipe 22 can be moved in the direction of the connecting ring 13 connected to one end of the stainless steel pipe 11, and the insert ring 11 can be inserted into the annular slot 12, so that the connecting ring 13 and the connecting ring 24 are in close contact. During this process, the annular sealing groove 23 follows the insert ring 11 to move and enter the annular slot 12. The inclined surface of the annular sealing groove 23 moves along the inner wall of the annular slot 12 and is squeezed to produce deformation, shrinking into the annular movable groove 14, and each return spring is compressed. When the insert ring 11 is fully inserted into the annular slot 12, under the elastic force of each return spring and the rebound force of the sealing gasket 13, one end of the sealing gasket 13 can be stuck in the annular sealing groove 23, filling and sealing the gap between the connecting ring 3 and the connecting ring 24, effectively improving the sealing when the stainless steel pipe 1 is connected to the stainless steel pipe 2, and at the same time preventing temperature leakage from the connection, thereby improving the thermal insulation performance;

[0037] Finally, one end of the rotating frame 16 is rotated toward the L-shaped fixing plate 19, and the limiting card plate 18 is pulled so that the limiting card plate 18 moves away from the rotating frame 16, the telescopic link 17 is extended, and the supporting spring is stretched. After the rotating frame 16 is rotated to the horizontal state, the limiting card plate 18 is released. Under the action of the supporting spring, the telescopic link 17 is shortened, and the limiting card plate 18 moves toward the L-shaped fixing plate 19, so that the limiting card plate 18 is stuck in the inside of the L-shaped fixing plate 19, and the insert block 20 is inserted into the fixing groove 21, completing the connection and fixation of the limiting card plate 18 and the L-shaped fixing plate 19, thereby connecting and fixing the connecting ring 1 3 and the connecting ring 2 4, and completing the connection and fixation of the stainless steel pipe 1 1 and the stainless steel pipe 2 2. Similarly, multiple stainless steel pipes 1 1 and stainless steel pipe 2 2 can be connected and fixed;

[0038] Through the above operation, it is convenient for the staff to connect and fix multiple stainless steel pipes 1 and 2, and the high-density thermal insulation sealing performance at the connection between the stainless steel pipes 1 and 2 can be guaranteed.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A thin-walled heat-insulating stainless steel pipe, comprising a stainless steel pipe 1 (1) and a stainless steel pipe 2 (2), characterized in that: The stainless steel pipe (1) and the stainless steel pipe (2) are both fixedly installed with an inner pipe (22), the inner wall of the stainless steel pipe (1) is fixedly connected with a heat-insulating layer (5), a buffer mechanism is provided between the inner wall of the heat-insulating layer (5) and the outer wall of the inner pipe (22), the stainless steel pipe (1) and the stainless steel pipe (2) are both fixedly connected with a connecting ring (3) at one end, and the stainless steel pipe (1) and the stainless steel pipe (2) are both fixedly connected with a connecting ring (4) at the other end, and a connecting mechanism is provided between the connecting ring (3) and the connecting ring (4); The buffer mechanism comprises a buffer layer (6), a plurality of buffer pads (7) and a plurality of spring pieces (8); the buffer layer (6) is fixedly connected to the inner wall of the thermal insulation layer (5); the plurality of buffer pads (7) and spring pieces (8) are fixedly connected between the buffer layer (6) and the inner tube (22); and a buffer connecting rod (10) is inserted into the outer wall of the spring piece (8).

2. A thin-walled thermal insulation stainless steel pipe according to claim 1, characterized in that: One end of the buffer connecting rod (10) is fixedly connected to the buffer layer (6); a buffer insert rod (9) is inserted into one end of the buffer connecting rod (10); and the end of the buffer insert rod (9) away from the buffer connecting rod (10) is fixedly connected to the inner tube (22).

3. The thin-walled thermal insulation stainless steel pipe according to claim 2, characterized in that: A buffer spring 1 is sleeved on the outside of the buffer rod (9) and the buffer connecting rod (10), and the two ends of the buffer spring 1 are respectively fixedly connected to the two inner side walls of the spring sheet (8), and a buffer spring 2 is installed between one end of the buffer rod (9) and the inner top end of the buffer connecting rod (10).

4. The thin-walled thermal insulation stainless steel pipe according to claim 2, characterized in that: The connecting mechanism comprises a rotating frame (16), an L-shaped fixing plate (19), an inserting ring (11) and an annular slot (12); the rotating frame (16) is rotatably connected to the outer wall of the second connecting ring (4); the L-shaped fixing plate (19) is fixedly connected to the outer wall of the first connecting ring (3); the inserting ring (11) is fixedly connected to one end of the second connecting ring (4); the annular slot (12) is opened at one end of the first connecting ring (3), and the inserting ring (11) and the annular slot (12) are matched.

5. The thin-walled thermal insulation stainless steel pipe according to claim 4, characterized in that: Both ends of the rotating frame (16) are fixedly connected to telescopic connecting rods (17), one end of the telescopic connecting rod (17) away from the rotating frame (16) is fixedly connected to a limiting clamping plate (18), and the outsides of the two telescopic connecting rods (17) are both sleeved with support springs.

6. The thin-walled thermal insulation stainless steel pipe according to claim 5, characterized in that: A fixing groove (21) is provided on the inner wall of the position-limiting card plate (18), an inserting block (20) is fixedly connected to the inner side wall of the position-limiting card plate (18), and the inserting block (20) is fitted into the fixing groove (21).

7. The thin-walled thermal insulation stainless steel pipe according to claim 6, characterized in that: The outer wall of the insert ring (11) is provided with an annular movable groove (14), an annular connecting plate (15) is movably installed inside the annular movable groove (14), the outer wall of the annular connecting plate (15) is fixedly connected with a sealing gasket (13), the inner wall of the connecting ring (3) is provided with an annular sealing groove (23), and the annular sealing groove (23) is matched with the sealing gasket (13), and a plurality of reset springs are installed between the inner wall of the annular connecting plate (15) and the inner wall of the insert ring (11).

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