Combined heat preservation stainless steel pipe fitting

Abstract

The utility model relates to the technical field of stainless steel pipe fittings, in particular to a combined heat preservation stainless steel pipe fitting which comprises a first stainless steel pipe fitting, a second stainless steel pipe fitting is fixedly arranged on the rear side of the first stainless steel pipe fitting, and second connecting flanges are fixedly connected to the two ends of the first stainless steel pipe fitting. The two ends of the second stainless steel pipe fitting are fixedly connected with first connecting flanges, and the rear side of each second connecting flange is provided with an annular groove. The U-shaped positioning plate can be clamped and fixed to the two connecting flanges through the two elastic limiting clamping rods; the two stainless steel pipe fittings can be further combined and positioned through cooperation with the U-shaped blocking base, the stability of the combined heat preservation stainless steel pipe fittings during installation can be improved, safety is good, the heat preservation cotton sleeve can be positioned through the two clamps and the two supporting arc plates, the heat preservation cotton sleeve is stably and reliably fixed, and the heat preservation effect is good. The heat preservation capacity of the stainless steel pipe fitting can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of stainless steel pipe fittings, specifically a combined insulated stainless steel pipe fitting. Background Technology

[0002] Stainless steel pipe fittings are a type of pipe accessory, mainly used to connect pipes and transport various fluids. Due to the corrosion resistance and high temperature resistance of stainless steel, stainless steel pipe fittings are often used in high-requirement applications such as transporting various chemicals, acidic substances, and rare gases to ensure the stable operation and safe use of the pipeline system.

[0003] The prior art discloses patent application number "CN202022151726.9", which discloses a heat insulation component for stainless steel pipe fittings, including a first outer shell and a second locking block. The first outer shell is provided with a filter screen inside, and the filter screen is provided with first locking blocks on both outer walls. The first locking block is provided with a first locking groove on one outer wall. The first locking groove is provided with heat insulation cotton on one side, and the heat insulation cotton is provided with a first hook and loop fastener on the inner wall. The first hook and loop fastener is provided with phenolic resin on one side, and a second hook and loop fastener is provided inside the phenolic resin. The second hook and loop fastener is provided with a clamp on one outer side, and a limit block is provided on both the upper and lower sides of one side of the clamp. The clamp is also provided with a limit hole on both the upper and lower sides of the other side of the clamp.

[0004] This effective insulation effect can only achieve the desired effect. However, in actual use, stainless steel pipe fittings are often fixed with bolts and nuts. With long-term use, the bolts and nuts are prone to loosening, which will affect the stability of the combined insulated stainless steel pipe fittings during installation, and cannot ensure the safety of the stainless steel pipe fittings during use, making them inconvenient to use. Utility Model Content

[0005] The purpose of this utility model is to provide a combined insulated stainless steel pipe fitting to solve the problems mentioned in the background art.

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

[0007] A combined insulated stainless steel pipe fitting includes a first stainless steel pipe fitting, a second stainless steel pipe fitting fixedly disposed on the rear side of the first stainless steel pipe fitting, a second connecting flange fixedly connected to both ends of the first stainless steel pipe fitting, a first connecting flange fixedly connected to both ends of the second stainless steel pipe fitting, an annular groove opened on the rear side of the second connecting flange, and an embedded retaining ring fixedly connected to the front side of the first connecting flange.

[0008] A U-shaped stop is snapped onto the lower side of the first and second connecting flanges. An array of U-shaped positioning plates are snapped onto the outer surfaces of the first and second connecting flanges. Two limit rods for fixing the first and second connecting flanges are slidably connected to the inner side of the U-shaped positioning plates. A connecting spring is fixedly installed between the two limit rods and the U-shaped positioning plates.

[0009] Preferably, the first and second connecting flanges are internally engaged with arrayed positioning bolts, and the outer surfaces of the positioning bolts are threaded with fastening nuts. A support base is slidably mounted on the lower side of the U-shaped stop, and both ends of the support base are fixedly connected with support arc plates for supporting the first and second stainless steel pipe fittings. The U-shaped stop and the support base are internally engaged with two stabilizing locking posts.

[0010] Preferably, both ends of the U-shaped stop are slidably engaged with insert rods for fixing the first connecting flange and the second connecting flange. One side of the insert rod passes through the U-shaped stop and extends into the interior of the first connecting flange and the second connecting flange. The left side of each of the two stabilizing pins is fixedly connected with a screw rod. The outer surface of each screw rod is threadedly connected with a threaded cap for fixing the stabilizing pin. Both sides of the support base are threadedly connected with fastening bolts for fixing the U-shaped stop.

[0011] Preferably, the outer surfaces of the first stainless steel pipe fitting and the second stainless steel pipe fitting are both fitted with insulation cotton sleeves. The outer surfaces of the insulation cotton sleeves are respectively fixed with a first clamp and a second clamp. The second clamp is located below the first clamp. The upper side of the first clamp is clamped with two bolts. The lower side of the bolts passes through the first clamp and extends to the lower side of the second clamp. The outer surfaces of the two bolts are threaded with nuts.

[0012] Preferably, the embedded retaining ring is located in the annular groove, the rear side of the second connecting flange is engaged with the front side of the embedded retaining ring through the annular groove, one side of the limiting rod passes through the U-shaped positioning plate and extends to one side of the U-shaped positioning plate, and an L-shaped block is fixedly connected to one side of both limiting rods.

[0013] Preferably, an array of embedded grooves are provided on one side of both the first connecting flange and the second connecting flange. The embedded grooves are adapted to the limiting rods, and the outer surface of the limiting rods is engaged with one side of the first connecting flange and the second connecting flange respectively through the embedded grooves.

[0014] Preferably, the U-shaped stop has an array of slots inside, which are adapted to the stabilizing posts, and the outer surface of the stabilizing posts is engaged with the inside of the U-shaped stop through the slots.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model utilizes two elastic limiting rods to clamp and fix the U-shaped positioning plate onto two connecting flanges. In conjunction with the use of a U-shaped stop, it can further combine and position two stainless steel pipe fittings, which helps to improve the stability and safety of the combined insulated stainless steel pipe fittings during installation.

[0017] 2. This utility model utilizes two supporting arc plates at the U-shaped stop to support two stainless steel pipe fittings together, improving the combined effect and ensuring the safe and reliable use of the combined insulated stainless steel pipe fittings. At the same time, the two clamps and two supporting arc plates can position the insulation cotton sleeve, making the insulation cotton sleeve stable and reliable, thereby improving the insulation capacity of the stainless steel pipe fittings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0020] Figure 2 This is a utility model Figure 1 Schematic diagram of the connecting flange and the embedded retaining ring;

[0021] Figure 3 This is a utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 4 This is a utility model Figure 1 Installation diagram of the U-shaped stop and support base;

[0023] Figure 5 This is a utility model Figure 4 Schematic diagram of the structure of the U-shaped stop and the supporting arc plate;

[0024] Figure 6 This is a utility model Figure 1 Installation diagram of the first clamp, the second clamp, and the insulation cotton sleeve;

[0025] The attached figures are labeled as follows:

[0026] 1. First stainless steel pipe fitting; 2. Second stainless steel pipe fitting; 3. First connecting flange; 4. Embedded retaining ring; 5. Circular groove; 6. U-shaped stop; 7. U-shaped positioning plate; 8. Limiting rod; 9. Connecting spring; 10. L-shaped block; 11. Positioning bolt; 12. Fastening nut; 13. Support base; 14. Stabilizing pin; 15. Supporting arc plate; 16. Insert rod; 17. Screw; 18. Threaded cap; 19. Fastening bolt; 20. Insulation cotton sleeve; 21. First clamp; 22. Second clamp; 23. Bolt 1; 24. Nut 1; 25. Embedded groove; 26. Slot; 30. Second connecting flange. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 6 As shown, a combined insulated stainless steel pipe fitting includes a first stainless steel pipe fitting 1, a second stainless steel pipe fitting 2 fixedly disposed on the rear side of the first stainless steel pipe fitting 1, a second connecting flange 30 fixedly connected to both ends of the first stainless steel pipe fitting 1, a first connecting flange 3 fixedly connected to both ends of the second stainless steel pipe fitting 2, an annular groove 5 opened on the rear side of the second connecting flange 30, and an embedded retaining ring 4 fixedly connected to the front side of the first connecting flange 3. The embedded retaining ring 4 can better fit and connect the first stainless steel pipe fitting 1 and the second stainless steel pipe fitting 2, allowing the two stainless steel pipe fittings to be combined more tightly and improving the sealing performance of the combined insulated stainless steel pipe fitting.

[0029] A U-shaped stop 6 is snapped onto the lower side of the first connecting flange 3 and the second connecting flange 30. An array of U-shaped positioning plates 7 are snapped onto the outer surface of the first connecting flange 3 and the second connecting flange 30. Two limiting rods 8 for fixing the first connecting flange 3 and the second connecting flange 30 are slidably connected to the inner side of the U-shaped positioning plate 7. A connecting spring 9 is fixedly installed between the two limiting rods 8 and the U-shaped positioning plate 7.

[0030] The first connecting flange 3 and the second connecting flange 30 are internally engaged with arrayed positioning bolts 11. The outer surface of the positioning bolts 11 is threaded with fastening nuts 12. A support base 13 is slidably installed on the lower side of the U-shaped stop 6. Both ends of the support base 13 are fixedly connected with support arc plates 15 for supporting the first stainless steel pipe fitting 1 and the second stainless steel pipe fitting 2. The U-shaped stop 6 and the support base 13 are internally engaged with two stabilizing posts 14. Through the installation and use of the U-shaped positioning plate 7 and the U-shaped stop 6, both are distributed at the first connecting flange 3 and the second connecting flange 30 to strengthen the connection between the two stainless steel pipe fittings.

[0031] Both ends of the U-shaped stop 6 are slidably engaged with insert rods 16 for fixing the first connecting flange 3 and the second connecting flange 30. One side of the insert rod 16 passes through the U-shaped stop 6 and extends into the interior of the first connecting flange 3 and the second connecting flange 30. The left sides of the two stabilizing pins 14 are fixedly connected with screws 17. The outer surfaces of the two screws 17 are threaded with threaded caps 18 for fixing the stabilizing pins 14. Both sides of the support base 13 are threaded with fastening bolts 19 for fixing the U-shaped stop 6. By setting the fastening bolts 19, the U-shaped stop 6 after positioning and lifting adjustment can be stabilized. In this way, the U-shaped stop 6 can be adapted to support stainless steel pipes of different heights and is easy to use.

[0032] The outer surfaces of the first stainless steel pipe fitting 1 and the second stainless steel pipe fitting 2 are both fitted with insulation cotton sleeves 20. The insulation cotton sleeves 20 are assembled from rock wool and perlite, and their interior is honeycomb-shaped, which has good thermal insulation performance. They are used to isolate the flow of air so as to prevent the transfer of heat and achieve the insulation effect. The outer surfaces of the insulation cotton sleeves 20 are respectively fixed with a first clamp 21 and a second clamp 22. The second clamp 22 is located below the first clamp 21. Two bolts 23 are clamped on the upper side of the first clamp 21. The lower side of the bolts 23 passes through the first clamp 21 and extends to the lower side of the second clamp 22. Nuts 24 are threaded onto the outer surfaces of the two bolts 23.

[0033] The embedded retaining ring 4 is located in the annular groove 5. The rear side of the second connecting flange 30 is engaged with the front side of the embedded retaining ring 4 through the annular groove 5. One side of the limiting rod 8 passes through the U-shaped positioning plate 7 and extends to one side of the U-shaped positioning plate 7. One side of each of the two limiting rods 8 is fixedly connected with an L-shaped block 10. By setting the L-shaped block 10, the two L-shaped blocks 10 can drive the elastic limiting rod 8 to compress, so as to release the limitation on the U-shaped positioning plate 7 and remove the U-shaped positioning plate 7.

[0034] An array of embedded grooves 25 are provided on one side of the first connecting flange 3 and the second connecting flange 30. The embedded grooves 25 are adapted to the limiting rod 8. The outer surface of the limiting rod 8 is engaged with one side of the first connecting flange 3 and the second connecting flange 30 through the embedded grooves 25.

[0035] The U-shaped stop 6 has an array of slots 26 inside, which are adapted to the stabilizing post 14. The outer surface of the stabilizing post 14 is engaged with the inside of the U-shaped stop 6 through the slots 26.

[0036] The working principle of the combined insulated stainless steel pipe fitting provided by this utility model is as follows:

[0037] By engaging the embedded retaining ring 4 at the second stainless steel pipe fitting 2 into the annular groove 5 of the first stainless steel pipe fitting 1, and then using the positioning bolt 11 and the fastening nut 12, the first stainless steel pipe fitting 1 and the second stainless steel pipe fitting 2 can be initially assembled and fixed. Next, the support base 13 is moved below the first stainless steel pipe fitting 1 and the second stainless steel pipe fitting 2, and the U-shaped stop 6 is moved upward so that the U-shaped stop 6 engages with the first connecting flange 3 and the second connecting flange 30. Then, two stabilizing pins 14 are inserted into the support base 13 and the U-shaped stop 6 to fix the two stainless steel pipe fittings in place. Then, the U-shaped positioning plate 7 is engaged with the first connecting flange 3 and the second connecting flange 30. At this time, the two limiting rods 8 with the connecting spring 9 can be embedded into the embedded grooves 25 of the first connecting flange 3 and the second connecting flange 30 so that the U-shaped positioning plate 7 can engage and assemble the two stainless steel pipe fittings. This helps to improve the stability and safety of the assembled insulated stainless steel pipe fittings during installation.

[0038] By inserting two rods 16 into the U-shaped stop 6 and the connecting flange, the two stainless steel pipe fittings are locked. Then, two threaded caps 18 are rotated and installed on two screws 17 to limit and fix the two stabilizing pins 14, making the two stabilizing pins 14 less likely to loosen or fall off, thus ensuring the stability of the U-shaped stop 6. In this way, the two supporting arc plates 15 at the U-shaped stop 6 can support the two stainless steel pipe fittings together, improving the combined effect and making the combined insulated stainless steel pipe fittings safe and reliable to use. Next, two insulation cotton sleeves 20 are respectively put onto the outer surface of the first stainless steel pipe fitting 1 and the second stainless steel pipe fitting 2. Then, the first clamp 21 and the second clamp 22 are fixed together using bolts 23 and nuts 24. At this time, the two clamps and the two supporting arc plates 15 can position the insulation cotton sleeves 20, making the insulation cotton sleeves 20 stable and reliable, which can improve the insulation capacity of the stainless steel pipe fittings.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A combined insulated stainless steel pipe fitting, comprising a first stainless steel pipe fitting (1), characterized in that: A second stainless steel pipe fitting (2) is fixedly provided on the rear side of the first stainless steel pipe fitting (1). A second connecting flange (30) is fixedly connected to both ends of the first stainless steel pipe fitting (1). A first connecting flange (3) is fixedly connected to both ends of the second stainless steel pipe fitting (2). A circular groove (5) is opened on the rear side of the second connecting flange (30). An embedded retaining ring (4) is fixedly connected to the front side of the first connecting flange (3). A U-shaped stop (6) is snapped onto the lower side of the first connecting flange (3) and the second connecting flange (30). An array of U-shaped positioning plates (7) are snapped onto the outer surface of the first connecting flange (3) and the second connecting flange (30). Two limiting rods (8) for fixing the first connecting flange (3) and the second connecting flange (30) are slidably connected to the inner side of the U-shaped positioning plate (7). A connecting spring (9) is fixedly installed between the two limiting rods (8) and the U-shaped positioning plate (7).

2. The combined insulated stainless steel pipe fitting according to claim 1, characterized in that, The first connecting flange (3) and the second connecting flange (30) are fitted with arrayed positioning bolts (11), and the outer surface of the positioning bolts (11) is threaded with fastening nuts (12). The lower side of the U-shaped stop (6) is slidably fitted with a support base (13). Both ends of the support base (13) are fixedly connected with support arc plates (15) for supporting the first stainless steel pipe fitting (1) and the second stainless steel pipe fitting (2). The U-shaped stop (6) and the support base (13) are fitted with two stabilizing locking posts (14).

3. A combined insulated stainless steel pipe fitting according to claim 2, characterized in that, Both ends of the U-shaped stop (6) are slidably engaged with insert rods (16) for fixing the first connecting flange (3) and the second connecting flange (30). One side of the insert rod (16) passes through the U-shaped stop (6) and extends into the interior of the first connecting flange (3) and the second connecting flange (30). The left side of the two stabilizing pins (14) is fixedly connected with screws (17). The outer surfaces of the two screws (17) are threaded with threaded caps (18) for fixing the stabilizing pins (14). Both sides of the support base (13) are threaded with fastening bolts (19) for fixing the U-shaped stop (6).

4. A combined insulated stainless steel pipe fitting according to claim 1, characterized in that, The outer surfaces of the first stainless steel pipe fitting (1) and the second stainless steel pipe fitting (2) are both fitted with insulation cotton sleeves (20). The outer surfaces of the insulation cotton sleeves (20) are respectively fixed with a first clamp (21) and a second clamp (22). The second clamp (22) is located below the first clamp (21). The upper side of the first clamp (21) is fitted with two bolts (23). The lower side of the bolts (23) passes through the first clamp (21) and extends to the lower side of the second clamp (22). The outer surfaces of the two bolts (23) are threaded with nuts (24).

5. A combined insulated stainless steel pipe fitting according to claim 1, characterized in that, The embedded retaining ring (4) is located in the annular groove (5). The rear side of the second connecting flange (30) is engaged with the front side of the embedded retaining ring (4) through the annular groove (5). One side of the limiting rod (8) passes through the U-shaped positioning plate (7) and extends to one side of the U-shaped positioning plate (7). One side of each of the two limiting rods (8) is fixedly connected to an L-shaped block (10).

6. A combined insulated stainless steel pipe fitting according to claim 1, characterized in that, The first connecting flange (3) and the second connecting flange (30) each have an array of embedded grooves (25) on one side. The embedded grooves (25) are adapted to the limiting rods (8). The outer surface of the limiting rods (8) is engaged with one side of the first connecting flange (3) and the second connecting flange (30) respectively through the embedded grooves (25).

7. A combined insulated stainless steel pipe fitting according to claim 1, characterized in that, The U-shaped stop (6) has an array of slots (26) inside. The slots (26) are adapted to the stabilizing post (14). The outer surface of the stabilizing post (14) is engaged with the inside of the U-shaped stop (6) through the slots (26).

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