A securely sealed flange
By designing the support plate, chamber and multi-layer ring tube structure in the flange connection, combined with the multiple fixing methods of fastening rods and screws, the problems of loose flange connection and poor sealing are solved, and a firmer and more stable connection is achieved.
Patent Information
- Application Number
- CN202421603656.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-07-08
AI Technical Summary
Existing flange connections are prone to loosening problems after long-term use, especially under the impact of water flow, which leads to poor sealing and water leakage.
A flange structure including an inner tube, an outer tube and annular tube plate is designed. The outer wall of the inner tube is equipped with a support plate and a chamber, and the inner wall of the inner tube is equipped with a multi-layer annular tube and a fastening hole. Through a multiple fixing structure of the fastening rod and screw, the support plate and the outer tube share the impact force to ensure the firmness of the connection.
Through the sharing of the support plate and the outer tube, the durability and connection firmness of the inner tube are improved, the use of materials is reduced, and the sealing and stability are enhanced, avoiding water leakage problems.
Smart Images
Figure CN222702798U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flange connection, and more specifically, to a firmly sealed flange. Background Art
[0002] Flanges are parts that connect shafts to each other and are used to connect pipe ends. Flanges are also used on equipment inlets and outlets to connect two devices. When connecting pipes and flanges, welding is usually used on the market, but welding usually involves the problem that damaged pipes cannot be replaced. Therefore, threaded connections have emerged for users to choose. However, since flanges are usually connected to pipes in mid-air, they do not have a strong support point. On the other hand, they are only fixed by threads between the pipe and the flange. After long-term use, the connection often becomes loose. In addition, the water flow itself has a certain impact force, which causes the pipe to shake, further aggravating the looseness of the connection and causing the flange to be loosely connected to the pipe. In severe cases, water leakage may occur.
[0003] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model aims to provide a connecting flange with better firmness.
[0005] The above technical objectives of the utility model are achieved through the following technical solutions: a firmly sealed flange, including a flange body, the flange body including an inner tube and an outer tube, an annular tube plate is arranged between the inner tube and the outer tube, the inner edge and the outer extension of the annular tube plate are respectively connected integrally with the inner tube and the outer tube, a plurality of support plates are arranged on the outer wall of one end of the inner tube, the two ends of the support plates are respectively connected integrally with the inner tube and the outer tube, and the support plates extend to the annular tube plate, a chamber is formed between the support plates, the inner tube and the outer tube, a first annular tube is arranged on the inner wall of the inner tube, the first annular tube includes a first end and a second end, the height of the first end is lower than the height of one end of the inner wall of the inner tube, and the second end extends to the other end of the inner wall of the inner tube, a plurality of fastening holes close to the chamber are arranged on the end face of the first end, a through hole is arranged on the inner wall of the fastening hole close to the side of the chamber, a thread is arranged in the through hole and passes through the chamber.
[0006] By adopting the above technical scheme, four support plates are preferably arranged on the outer wall of one end of the inner tube, thereby forming four chambers. When the inner tube is filled with liquid and is subjected to impact force, the impact force is simultaneously transmitted to the outer tube by the support plate, and the impact force is shared by the support plate and the outer tube, thereby ensuring the firmness and durability of the inner tube. On the other hand, by providing four chambers, it is possible to save material costs while achieving the reinforcement effect. If necessary, the chambers can also be used in conjunction with other equipment to further reinforce the flange body. A first annular tube is arranged on the inner wall of the inner tube, and the inner tube is integrally connected to the first annular tube. The first annular tube includes a first end and a second end. Four fastening holes respectively close to the four chambers are preferably arranged on the end face of the first end, and a through hole is provided on the inner wall of the fastening hole close to the side of the chamber, and the through hole penetrates into the chamber at the same time. At the same time, there is another fastening hole connected to this flange body. The output pipe and input pipe are matched with each other, and four fastening rods which can be inserted into the fastening holes are arranged on the end face of one end of the output pipe. The fastening rod is also provided with a locking hole which is the same size as the through hole and has a thread. When the output pipe is inserted into the inner pipe, the locking rod is inserted into the fastening hole, and at the same time, a screw is used in the chamber to penetrate the through hole and tighten it into the locking hole. Compared with the simple pipe thread connection, this fixing structure firstly implements the first fixing by inserting and fitting the fastening rod into the fastening hole at the first end, and then implements the second fixing by threaded connection between the screw and the through hole of the inner pipe, and finally implements the third fixing by the screw and the locking hole of the fastening rod. Through these three fixings, it can be ensured that the forces acting on the inner pipe and the output pipe are shared multiple times, and the force sharing by the support plate and the outer pipe is finally achieved, so that the purpose of firmly connecting the flange and the pipeline is finally achieved.
[0007] The utility model is further configured as follows: a second ring tube is provided between the first ring tube and the inner tube, one end of the second ring tube is higher than the first end and the other end extends to the second end, and a sealing ring is sleeved on the second ring tube near the first end.
[0008] By adopting the above technical solution, a second ring tube is arranged on the inner wall of the first ring tube, and the second ring tube is integrally connected to the first ring tube and the inner tube respectively. One end of the second ring tube is lower than the first end and the other end extends to the second end, so a groove for placing a sealing ring is formed between the inner tube and the second ring tube. During installation, the sealing ring is firstly sleeved on the outer side of the output tube, and then when the output tube is fixed on the end face of the first end, the output tube is pressed into the groove formed by the inner tube and the second ring tube, so as to further prevent the sealing problem and facilitate disassembly and replacement.
[0009] The utility model is further configured as follows: the outer tube is integrally connected with a base, and the base extends horizontally along the circular direction of the outer tube.
[0010] Generally, flanges do not have a base and simply connect two pipes through the flange. By adopting the above technical solution, a base is provided at the bottom of the flange body, which fixes the pipe in a certain position and uses the weight of the base to offset the vibration impact force generated by the water flow, thereby further improving the firmness and stability of the connection between the flange body and the pipe.
[0011] The utility model is further configured as follows: the bottom surface of the base is provided with two fixing grooves for fixing.
[0012] By adopting the above technical solution, two fixing grooves for fixing are set on the base, and protrusions matching the grooves are set on the ground or wall. When in use, the grooves are inserted into the protrusions, which can further reduce the vibration impact caused by the impact of water flow, ensure that the product will not move in a horizontal position when in use, and further enhance the firmness and stability of the product when in use.
[0013] The utility model is further configured as follows: a plurality of annular convex strips are arranged on the outer wall of one end of the inner tube close to the second end, and the annular convex strips are evenly arranged along the length direction of the inner tube.
[0014] By adopting the above technical solution, the outer wall of one end of the inner tube close to the second end is provided with a plurality of annular convex strips, and the annular convex strips are evenly arranged along the length direction of the inner tube. At the same time, the input tube is adapted to this end, and the inner wall of the input tube is provided with a plurality of annular grooves adapted to the annular convex strips. The input tube is used by sleeved onto the outer wall of the inner tube, and the inner wall of the input tube is in close contact with the outer wall of the inner tube. Since any object has a certain elasticity, the user needs to use a certain force when inserting the input tube, and the input tube can be sleeved into the inner tube one by one. When the input tube is sleeved to the bottom, all the annular convex strips are inserted into the annular grooves; when the user needs to remove the input tube, it is necessary to use a certain force or cooperate with the equipment to pull it out forcefully. The magnitude of the required force here depends on the depth of the annular groove and the height of the annular convex strip, so as to achieve the fixing effect and facilitate the removal; on the other hand, the annular convex strip and the annular groove are both set to be arc-shaped, so as to prevent excessive wear between the annular convex strip and the annular groove while meeting the fixing effect, and it is also more convenient for the user to plug, unplug and replace.
[0015] The utility model is further configured as follows: a reinforcement portion is provided at the connection between the support plate and the outer wall of the inner tube, and the cross section of the reinforcement portion is triangular.
[0016] By adopting the above technical solution, a reinforcement part is provided at the connection between the support plate and the outer wall of the inner tube to ensure the firmness of the support plate. At the same time, the cross-section of the reinforcement part is set to a triangle because the triangle has the best stability, which further enhances the structural firmness here.
[0017] In summary, the utility model has the following beneficial effects: by setting the support plate, the impact force of the liquid is shared and the firmness and durability of the inner tube are extended; by setting the chamber, the material cost is saved while achieving the reinforcement effect; by setting the through hole, the lock hole, the locking hole, the fastening rod and the screw, the three fixations can ensure that the forces on the inner tube and the output tube are shared multiple times, and the force sharing by the support plate and the outer tube is finally achieved. The purpose of the firm connection between the flange and the pipeline is achieved; the design of the sealing ring can prevent the sealing problem and facilitate disassembly and replacement; the design of the base further improves the firmness and stability of the flange body when connected to the pipeline; by setting the annular convex strip and the annular groove, the fixing effect is achieved while facilitating disassembly; by setting the annular convex strip and the annular groove in an arc shape, while satisfying the fixing effect, excessive wear between the annular convex strip and the annular groove is prevented, and it is also more convenient for users to plug, unplug and replace; by setting the reinforcement part, the structural firmness here is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a three-dimensional diagram of this embodiment;
[0019] Figure 2 This is an enlarged schematic diagram of the structure of part G of this embodiment;
[0020] Figure 3 This is a schematic diagram of the coordination between the input pipe and the output pipe in this embodiment. Figure 1 ;
[0021] Figure 4 This is a schematic diagram of the coordination between the input pipe and the output pipe in this embodiment. Figure 2 ;
[0022] Figure 5 It is a schematic diagram of the structure of the fastening rod matched with this embodiment.
[0023] Description of the drawings: 1. Flange body; 2. Inner tube; 3. Outer tube; 4. Annular tube plate; 5. Support plate; 6. Chamber; 7. First annular tube; 8. First end; 9. Second end; 10. Fastening hole; 11. Through hole; 12. Second annular tube; 13. Sealing ring; 14. Base; 15. Fixing groove; 16. Annular convex strip; 17. Reinforcement part; 18. Output tube; 19. Input tube; 20. Fastening rod; 21. Lock hole; 22. Annular groove. DETAILED DESCRIPTION
[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0025] A firmly sealed flange comprises a flange body 1, the flange body 1 comprises an inner tube 2 and an outer tube 3, an annular tube sheet 4 is arranged between the inner tube 2 and the outer tube 3, the inner edge and the outer extension of the annular tube sheet 4 are respectively connected integrally with the inner tube 2 and the outer tube 3, a plurality of support plates 5 are arranged on the outer wall at one end of the inner tube 2, the two ends of the support plates 5 are respectively connected integrally with the inner tube 2 and the outer tube 3, and the support plates 5 extend to the annular tube sheet 4, a chamber 6 is formed between the support plates 5, the inner tube 2 and the outer tube 3, a first annular tube 7 is arranged on the inner wall of the inner tube 2, the first annular tube 7 comprises a first end 8 and a second end 9, the height of the first end 8 is lower than the height of one end of the inner wall of the inner tube 2, and the second end 9 extends to the other end of the inner wall of the inner tube 2, a plurality of fastening holes 10 close to the chamber 6 are arranged on the end face of the first end 8, a through hole 11 is arranged on the inner wall of the fastening hole 10 close to the chamber 6, a thread is arranged in the through hole 11 and passes through the chamber 6.
[0026] Four support plates 5 are preferably arranged on the outer wall at one end of the inner tube 2, thereby forming four chambers 6. When the inner tube 2 is filled with liquid and is subjected to impact force, the impact force is simultaneously transmitted to the outer tube 3 by the support plate 5, and the impact force is shared by the support plate 5 and the outer tube 3, so as to ensure the firmness and durability of the inner tube 2. On the other hand, by providing four chambers 6, it is possible to save material costs while achieving the reinforcement effect. If necessary, the chamber 6 can also be used in conjunction with other equipment to further reinforce the flange body 1; a first annular tube 7 is arranged on the inner wall of the inner tube 2, and the inner tube 2 is integrally connected to the first annular tube 7. The first annular tube 7 includes a first end 8 and a second end 9. Four fastening holes 10 are preferably arranged on the end face of the first end 8, respectively close to the four chambers 6, and a through hole 11 is provided on the inner wall of the fastening hole 10 close to the chamber 6. The through hole 11 also penetrates into the chamber 6, and there are also output pipes 18 and output pipes 18 matching this flange body 1. Four fastening rods 20 that can be inserted into the fastening holes 10 are provided on the end faces of the inlet pipe 19 and the outlet pipe 18 at one end. The fastening rods 20 are also provided with locking holes 21 of the same size as the through holes 11 and with threads. When the output pipe 18 is inserted into the inner pipe 2, the locking rods are inserted into the fastening holes 10, and screws are used to penetrate the through holes 11 in the chamber 6 and tighten them into the locking holes 21. Compared with the simple pipe threaded connection, this fixing structure firstly implements the first fixation by inserting and fitting the fastening rods 20 into the fastening holes 10 of the first end 8, and then implements the second fixation by threaded connection between the screws and the through holes 11 of the inner pipe 2, and finally implements the third fixation by the screws and the locking holes 21 of the fastening rods 20. Through these three fixations, it can be ensured that the forces acting on the inner pipe 2 and the output pipe 18 are shared multiple times. In addition, the support plate 5 and the outer pipe 3 are provided to share the forces, and finally the purpose of firmly connecting the flange and the pipeline is achieved.
[0027] A second annular tube 12 is provided between the first annular tube 7 and the inner tube 2 . One end of the second annular tube 12 is higher than the first end 8 and the other end extends to the second end 9 . A sealing ring 13 is sleeved on the second annular tube 12 near the first end 8 .
[0028] A second annular tube 12 is arranged on the inner wall of the first annular tube 7. The second annular tube 12 is integrally connected to the first annular tube 7 and the inner tube 2 respectively. One end of the second annular tube 12 is lower than the first end 8 and the other end extends to the second end 9. Therefore, a groove for placing the sealing ring 13 is formed between the inner tube 2 and the second annular tube 12. During installation, the sealing ring 13 is first sleeved on the outer side of the output tube 18. Then, when the output tube 18 is fixed on the end face of the first end 8, the output tube 18 is pressed into the groove formed by the inner tube 2 and the second annular tube 12, so as to further prevent the sealing problem and facilitate disassembly and replacement.
[0029] The outer tube 3 is integrally connected with a base 14 , and the base 14 extends horizontally along the circular direction of the outer tube 3 .
[0030] A general flange will not be provided with a base 14, and will simply connect two pipes through the flange. By adopting the above technical solution, a base 14 is provided at the bottom of the flange body 1, and the pipe is fixed in a certain position while the weight of the base 14 is used to offset the vibration impact force generated by the water flow, thereby further improving the firmness and stability of the flange body 1 when connected to the pipe.
[0031] The bottom surface of the base 14 is provided with two fixing grooves 15 for fixing.
[0032] Two fixing grooves 15 for fixing are set on the ground of the base 14, and protrusions matching the grooves are set on the ground or wall. When in use, the grooves are inserted into the protrusions, which can further reduce the vibration impact caused by the impact of water flow, ensure that the product will not move in a horizontal position when in use, and further enhance the firmness and stability of the product when in use.
[0033] A plurality of annular ridges 16 are provided on the outer wall of one end of the inner tube 2 close to the second end 9 , and the annular ridges 16 are evenly spaced along the length direction of the inner tube 2 .
[0034] By adopting the above technical solution, the outer wall of one end of the inner tube 2 close to the second end 9 is provided with a plurality of annular ridges 16, and the annular ridges 16 are evenly arranged along the length direction of the inner tube 2. At the same time, the input tube 19 is adapted to this end, and the inner wall of the input tube 19 is provided with a plurality of annular grooves 22 adapted to the annular ridges 16. The use of the input tube 19 is to put the input tube 19 on the outer wall of the inner tube 2, and the inner wall of the input tube 19 is in close contact with the outer wall of the inner tube 2. Since any object has a certain elasticity, the user needs to use a certain force when inserting the input tube 19, and the input tube 19 can be inserted one by one. When the input tube 19 is put on the inner tube 2, all the annular ridges 16 are inserted into the annular grooves 22; when the user needs to remove the input tube 19, it is necessary to use a certain force or cooperate with the equipment to pull it out. The magnitude of the force required here depends on the depth of the annular groove 22 and the height of the annular ridge 16, which achieves a fixing effect and is convenient for disassembly; on the other hand, the annular ridge 16 and the annular groove 22 are both set to an arc shape, which not only meets the fixing effect but also prevents excessive wear between the annular ridge 16 and the annular groove, and is more convenient for users to plug, unplug and replace.
[0035] A reinforcement portion 17 is provided at the connection between the support plate 5 and the outer wall of the inner tube 2 , and the cross section of the reinforcement portion 17 is triangular.
[0036] A reinforcement part 17 is provided at the connection between the support plate 5 and the outer wall of the inner tube 2 to ensure the firmness of the support plate 5. At the same time, the cross section of the reinforcement part 17 is set to be a triangle because the triangle has the best stability, which further strengthens the structural firmness here.
[0037] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.
Claims
1. A firmly sealed flange, comprising a flange body, the flange body comprising an inner tube and an outer tube, characterized in that: An annular tube sheet is provided between the inner tube and the outer tube, and the inner edge and outer extension of the annular tube sheet are respectively connected integrally with the inner tube and the outer tube; a plurality of support plates are provided on the outer wall of one end of the inner tube, and the two ends of the support plates are respectively connected integrally with the inner tube and the outer tube, and the support plates extend to the annular tube sheet, and a chamber is formed between the support plates, the inner tube and the outer tube; a first annular tube is provided on the inner wall of the inner tube, and the first annular tube includes a first end and a second end, the height of the first end is lower than the height of one end of the inner wall of the inner tube, and the second end extends to the other end of the inner wall of the inner tube; a plurality of fastening holes close to the chamber are provided on the end face of the first end, and a through hole is provided on the inner wall of the fastening hole close to the side of the chamber, and a thread is provided in the through hole and passes through the chamber.
2. A firmly sealed flange according to claim 1, characterized in that: A second annular tube is provided between the first annular tube and the inner tube, one end of the second annular tube is higher than the first end and the other end extends to the second end; a sealing ring is sleeved on the second annular tube near the first end.
3. A firmly sealed flange according to claim 1, characterized in that: The outer tube is integrally connected with a base, and the base extends horizontally along the circular direction of the outer tube.
4. A firmly sealed flange according to claim 3, characterized in that: The bottom surface of the base is provided with two fixing grooves for fixing.
5. A firmly sealed flange according to claim 1, characterized in that: The outer wall of one end of the inner tube close to the second end is provided with a plurality of annular convex strips, and the annular convex strips are evenly arranged along the length direction of the inner tube.
6. A firmly sealed flange according to claim 1, characterized in that: A reinforcement portion is provided at the connection between the support plate and the outer wall of the inner tube; and the cross section of the reinforcement portion is triangular.