Leakage-proof stainless steel pipe
By setting up sealing components between the flanges of the stainless steel pipes, the problem of insufficient sealing when connecting traditional stainless steel pipes is solved, and a stronger sealing ability is achieved to prevent media leakage.
Patent Information
- Application Number
- CN202422176632.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-05
AI Technical Summary
When connecting traditional stainless steel pipes, due to the rough flange surface, the sealing gasket cannot fit completely, and there is a gap between the bolt and the sealing gasket, which causes the medium to leak easily at high pressure.
A leak-proof stainless steel pipe is designed, and by setting a sealing assembly between the flanges, including a boss, a sealing gasket and a sealing sleeve, the sealing gasket is used to ensure that the sealing gasket is in close contact with the flange, and the sealing property is enhanced.
It effectively solves the sealing problem caused by rough flange surface, ensures that the sealing gasket is fully fitted with the flange, eliminates the gap between the bolt and the sealing gasket, significantly enhances the sealing of the pipe, and avoids media leakage.
Smart Images
Figure CN223019701U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stainless steel pipes, and particularly relates to a leak-proof stainless steel pipe. Background Art
[0002] Stainless steel pipes are a kind of hollow long round steel, mainly widely used in industrial conveying pipelines such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instruments, etc., and mechanical structure components, etc. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in manufacturing mechanical parts and engineering structures. It is also commonly used as furniture, kitchen utensils, etc.
[0003] When traditional stainless steel pipes are connected, they are usually installed and fixed using flanges and bolts, and a gasket is arranged between the flanges for sealing. The surfaces of some flanges are relatively rough. When installed, the gasket cannot fit completely with the flange surface, and there are gaps between the bolts and the gasket. When the medium pressure is relatively high, it is easy to cause the problem of medium leakage inside the steel pipe. Content of the Utility Model
[0004] The purpose of the utility model is to provide a leak-proof stainless steel pipe to solve the problems put forward in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A leak-proof stainless steel pipe, including steel pipe A, steel pipe B located on the right side of steel pipe A, flange A and flange B respectively fixedly arranged on steel pipe A and steel pipe B, characterized in that: A sealing component is arranged between flange A and flange B, and the sealing component includes boss A fixedly arranged on the right side of flange A, gasket A fixedly arranged on the right side of boss A, boss B fixedly arranged on the left side of flange B, gasket B fixedly arranged on the left side of boss B, and gasket C. Gasket C is located between gasket A and gasket B and is in contact connection with the two. Flange A and flange B are fixedly connected through a fixing component, and the fixing component is located outside boss A and boss B.
[0006] Preferably, the sealing component further includes a sealing sleeve fixedly arranged outside gasket C and sleeved on boss A and boss B, and a plurality of clamps. The sealing sleeve is fixedly connected with boss A and boss B through the clamps.
[0007] Preferably, connection rings are fixedly arranged on one side of gasket A and gasket B away from gasket C, connection grooves matching with the connection rings are respectively formed on the side walls of boss A and boss B facing gasket C, and the connection rings are inserted into the connection grooves to be fixedly connected with boss A and boss B.
[0008] Preferably, the fixing assembly includes a plurality of screws, nuts and a loosening prevention assembly. A plurality of mounting holes located outside the boss A and the boss B are formed on both the flange A and the flange B. After the screws are inserted into the mounting holes, the flange A and the flange B are fixedly connected by the nuts.
[0009] Preferably, the loosening prevention assembly includes a spring fixedly arranged on the left side of the nut and a pressing ring fixedly arranged on the left side of the spring. After the nut is screwed onto the screw, the pressing ring is fixedly connected to the flange B.
[0010] Preferably, the fixing assembly further includes a plug post and stoppers fixedly arranged on the left and right sides of the plug post. Slots are formed on the outer side walls of both the flange A and the flange B. After the plug post is inserted into the slot, the stoppers on the left and right sides of the plug post are respectively in contact connection with the left end of the flange A and the right end of the flange B.
[0011] Preferably, the materials of the gasket A, the gasket B and the gasket C are all nitrile rubber.
[0012] The beneficial effects of the present utility model are as follows: When the present utility model is used, the gasket A is fixed on the right side of the boss A through a sealant, the gasket B is fixed on the left side of the boss B through a sealant, the gasket C is placed between the gasket A and the gasket B and is in contact connection with the two. The sealing sleeve is sleeved on the boss A and the boss B. After the screws are inserted into the mounting holes, the flange A and the flange B are fixedly connected by the nuts. The flange A and the flange B will squeeze the boss A and the boss B, so that the gasket A and the gasket B are fixedly connected to the gasket C. After installation, the screws will not penetrate through the gasket, and there is no gap between the screws and the gasket, which plays a role in enhancing the sealing performance. The gasket A and the gasket B are closely attached to the gasket C, which further enhances the sealing performance; The clamp is sleeved on the sealing sleeve, and the clamp is tightened to fix the sealing sleeve to the boss A and the boss B, which plays a role in sealing the connection gap; In summary, the present utility model has the beneficial effect of strong sealing performance, and solves the problem that the surface of some flanges is relatively rough, the gasket cannot be completely attached to the flange surface during installation, and there is a gap between the bolt and the gasket, which is likely to cause the leakage of the medium inside the steel pipe when the medium pressure is high. Description of the Drawings
[0013] Attached Figure 1 is a schematic structural view of the present utility model;
[0014] Attached Figure 2 is a left view of the present utility model;
[0015] Attached Figure 3 is the sectional view taken along the line A-A in the attached Figure 2 ;
[0016] In the figure: steel pipe A1, steel pipe B2, flange A3, flange B4, boss A5, gasket A6, boss B7, gasket B8, gasket C9, sealing sleeve 10, clamp 11, connecting ring 12, connecting groove 13, screw 14, nut 15, mounting hole 16, spring 17, pressing ring 18, plug post 19, stop block 20, slot 21. Specific embodiments
[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
[0018] As Figures 1-3 shown, the present invention discloses an anti-leakage stainless steel pipe, including a steel pipe A1, a steel pipe B2 located on the right side of the steel pipe A1, a flange A3 and a flange B4 respectively fixedly arranged on the steel pipe A1 and the steel pipe B2. A sealing component is arranged between the flange A3 and the flange B4. The sealing component includes a boss A5 fixedly arranged on the right side of the flange A3, a gasket A6 fixedly arranged on the right side of the boss A5, a boss B7 fixedly arranged on the left side of the flange B4, a gasket B8 fixedly arranged on the left side of the boss B7, and a gasket C9. The gasket C9 is located between the gasket A6 and the gasket B8 and is in contact connection with the two. The flange A3 and the flange B4 are fixedly connected through a fixing component, and the fixing component is located outside the boss A5 and the boss B7. When the present invention is used, the gasket A6 is fixed on the right side of the boss A5 through a sealing glue, the gasket B8 is fixed on the left side of the boss B7 through a sealing glue, the gasket C9 is placed between the gasket A6 and the gasket B8 and is in contact connection with the two. The sealing sleeve 10 is sleeved on the boss A5 and the boss B7. After the screw 14 is inserted into the mounting hole 16, it is fixedly connected to the flange A3 and the flange B4 through the nut 15. The flange A3 and the flange B4 will squeeze the boss A5 and the boss B7, so that the gasket A6 and the gasket B8 are fixedly connected to the gasket C9. After installation, the screw 14 will not pass through the gasket, and there is no gap between the screw 14 and the gasket, which plays a role in enhancing the sealing performance. The gasket A6 and the gasket B8 are closely attached to the gasket C9, which plays a role in further enhancing the sealing performance. The clamp 11 is sleeved on the sealing sleeve 10, and the clamp 11 is tightened to fix the sealing sleeve 10 to the boss A5 and the boss B7, which plays a role in sealing the connection gap. In summary, the present invention has the beneficial effect of strong sealing performance, and solves the problem that the surface of some flanges is relatively rough, the gasket cannot be completely attached to the flange surface during installation, and there is a gap between the bolt and the gasket, which is likely to cause the internal medium of the steel pipe to leak when the medium pressure is high.
[0019] Preferably, the sealing assembly further includes a sealing sleeve 10 fixedly arranged outside the sealing gasket C9 and sleeved on the boss A5 and the boss B7, and a plurality of clamps 11. The sealing sleeve 10 is fixedly connected to the boss A5 and the boss B7 through the clamps 11. When the sealing sleeve 10 is in use, the sealing sleeve 10 is sleeved on the boss A5 and the boss B7, the clamps 11 are sleeved on the sealing sleeve 10, and the clamps 11 are tightened to fix the sealing sleeve 10 to the boss A5 and the boss B7, which plays a role in sealing the connection gap.
[0020] Preferably, connecting rings 12 are fixedly arranged on one side of the sealing gasket A6 and the sealing gasket B8 away from the sealing gasket C9. Connecting grooves 13 matching the connecting rings 12 are formed on the side walls of the boss A5 and the boss B7 facing the sealing gasket C9. The connecting rings 12 are inserted into the connecting grooves 13 and fixedly connected to the boss A5 and the boss B7. Since the connecting rings 12 are inserted into the connecting grooves 13 and fixedly connected to the boss A5 and the boss B7, it plays a role in positioning and increasing the contact area.
[0021] Preferably, the fixing assembly includes a plurality of screws 14, nuts 15, and a loosening prevention assembly. A plurality of mounting holes 16 are formed on the flange A3 and the flange B4 and located outside the boss A5 and the boss B7. After the screws 14 are inserted into the mounting holes 16, they are fixedly connected to the flange A3 and the flange B4 through the nuts 15. Since the mounting holes 16 are located outside the boss A5 and the boss B7, and the screws 14 are fixedly connected to the flange A3 and the flange B4 through the nuts 15 after being inserted into the mounting holes 16, the screws 14 will not pass through the sealing gasket, and there is no gap between the screws 14 and the sealing gasket, which plays a role in enhancing the sealing performance.
[0022] Preferably, the loosening prevention assembly includes a spring 17 fixedly arranged on the left side of the nut 15 and a pressing ring 18 fixedly arranged on the left side of the spring 17. After the nut 15 is screwed onto the screw 14, the pressing ring 18 is fixedly connected to the flange B4. Since the pressing ring 18 is fixedly arranged on the left side of the spring 17 and the pressing ring 18 is fixedly connected to the flange B4 after the nut 15 is screwed onto the screw 14, it plays a role in preventing the nut 15 from loosening, thereby avoiding the situation that the sealing performance is reduced due to the loosening of the nut 15.
[0023] Preferably, the fixing assembly further includes an insertion post 19 and stoppers 20 fixedly arranged on the left and right sides of the insertion post 19. Insertion slots 21 are formed on the outer side walls of the flange A3 and the flange B4. After the insertion post 19 is inserted into the insertion slot 21, the stoppers 20 on the left and right sides of the insertion post 19 are respectively in contact connection with the left end of the flange A3 and the right end of the flange B4. Before the screw 14 is installed, the insertion post 19 is first inserted into the insertion slot 21, and the stoppers 20 on the left and right sides of the insertion post are respectively in contact connection with the left end of the flange A3 and the right end of the flange B4, which plays a role in pre-fixing.
[0024] Preferably, the materials of the gasket A6, gasket B8 and gasket C9 are all nitrile rubber. Since the materials of the gasket A6, gasket B8 and gasket C9 are all nitrile rubber, they have the characteristics of strong adhesion, strong sealing performance, etc.
[0025] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A leak-proof stainless steel pipe, comprising a steel pipe A (1), a steel pipe B (2) located on the right side of the steel pipe A (1), and a flange A (3) and a flange B (4) fixedly mounted on the steel pipe A (1) and the steel pipe B (2), respectively, wherein: A sealing assembly is provided between the flange A (3) and the flange B (4), the sealing assembly comprising a boss A (5) fixedly arranged on the right side of the flange A (3), a sealing gasket A (6) fixedly arranged on the right side of the boss A (5), a boss B (7) fixedly arranged on the left side of the flange B (4), a sealing gasket B (8) fixedly arranged on the left side of the boss B (7), and a sealing gasket C (9), wherein the sealing gasket C (9) is located between the sealing gasket A (6) and the sealing gasket B (8) and is in contact with the two. The flange A (3) and the flange B (4) are fixedly connected by the fixing assembly, and the fixing assembly is located outside the boss A (5) and the boss B (7).
2. The anti-leakage stainless steel pipe according to claim 1, characterized in that: The sealing assembly further comprises a sealing sleeve (10) fixedly arranged on the outside of the sealing gasket C (9) and sleeved on the boss A (5) and the boss B (7), and a plurality of clamps (11); the sealing sleeve (10) is fixedly connected to the boss A (5) and the boss B (7) via the clamps (11).
3. The anti-leakage stainless steel pipe according to claim 1, characterized in that: A connecting ring (12) is fixedly provided on the side of the sealing gasket A (6) and the sealing gasket B (8) away from the sealing gasket C (9), and a connecting groove (13) matching the connecting ring (12) is provided on the wall of the boss A (5) and the boss B (7) facing the sealing gasket C (9), and the connecting ring (12) is inserted into the connecting groove (13) to be fixedly connected with the boss A (5) and the boss B (7).
4. The anti-leakage stainless steel pipe according to claim 1, characterized in that: The fixing assembly comprises a plurality of screws (14) and nuts (15) and an anti-loosening assembly. The flange A (3) and the flange B (4) are each provided with a plurality of mounting holes (16) located outside the boss A (5) and the boss B (7). After the screws (14) are inserted into the mounting holes (16), they are fixedly connected to the flange A (3) and the flange B (4) via the nuts (15).
5. The anti-leakage stainless steel pipe according to claim 4, characterized in that: The anti-loosening assembly comprises a spring (17) fixedly arranged on the left side of the nut (15) and a pressure ring (18) fixedly arranged on the left side of the spring (17); after the nut (15) is screwed into the screw (14), the pressure ring (18) is fixedly connected to the flange B (4).
6. The anti-leakage stainless steel pipe according to claim 4, characterized in that: The fixing assembly further comprises an insertion column (19), and stoppers (20) fixedly arranged on the left and right sides of the insertion column (19); slots (21) are provided on the outer side walls of the flange A (3) and the flange B (4); after the insertion column (19) is inserted into the slot (21), the stoppers (20) on the left and right sides of the insertion column (19) are respectively abutted and connected with the left end of the flange A (3) and the right end of the flange B (4).
7. The anti-leakage stainless steel pipe according to claim 1, characterized in that: The sealing gasket A (6), the sealing gasket B (8) and the sealing gasket C (9) are all made of nitrile rubber.