Anti-loosening stainless steel flange

Abstract

The utility model relates to the technical field of flanges, in particular to an anti-loosening stainless steel flange, an anti-loosening assembly comprises a sliding column, a stud and a cylinder, the stud and the cylinder are fixedly arranged on the left side and the right side of the sliding column respectively, the diameter of the stud and the diameter of the cylinder are larger than that of the sliding column, a screw hole is formed in the right side wall of a flange A, and the stud is screwed into the screw hole to be fixedly connected with the flange A; an arc-shaped groove and a through groove communicated with the arc-shaped groove are formed in the flange B in a left-right penetrating mode, the sliding column is located in the arc-shaped groove, the cylinder is located on the right side of the flange B, and the arc-shaped groove and the through groove are matched with the sliding column and the cylinder in width respectively. The anti-vibration stainless steel flange has the advantages of preventing the screws from loosening and preventing a gap from being formed between the flange A and the flange B, and solves the problems that a traditional stainless steel flange is general in anti-vibration effect, and when the stainless steel flange is in a high-vibration working environment for a long time, bolts are prone to loosening and even falling off. And the problems of poor leakproofness and material leakage are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange technical field, concretely relates to a anti-loose stainless steel flange. BACKGROUND

[0002] ‌Stainless steel flange is two ring parts connected with each other, fixed together through bolt, middle is provided with hole, is used for connecting pipeline or equipment‌. Flange connection is by flange, gasket and bolt three interconnects as a group combined seal structure's detachable connection.

[0003] ‌Stainless steel flange application range is extremely extensive, has use in various working environments. Traditional stainless steel flange anti-vibration effect is more general, stainless steel flange is in high vibration working environment for a long time, and it is easy to cause bolt loosening even falling off, resulting in poor sealing, material leakage. UTILITY MODEL CONTENTS

[0004] The utility model discloses a anti-loose stainless steel flange to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a anti-loose stainless steel flange, including flange A, the flange B in the right side of flange A, a plurality of screws and nuts, the flange A and flange B are respectively left and right through and are provided with a plurality of through -hole A and through -hole B, the screw passes through through -hole A and through -hole B and is fixedly connected with flange A and flange B through the nut, its characterized in that: the flange A is equipped with the anti -loose subassembly, the anti -loose subassembly includes slide column, the stud and the cylinder respectively fixedly arranged in the left and right sides of slide column, the stud and the cylinder diameter are all greater than the slide column diameter, the screw hole is set up on the right side wall of flange A, the stud is screwed into the screw hole and is fixedly connected with flange A, the flange B is left and right through and is provided with arc -shaped groove, the through -groove that communicates with arc -shaped groove, the slide column is located in arc -shaped groove, the cylinder is located in the right side of flange B, the arc -shaped groove and through -groove slot width are matched with the stud and the cylinder respectively.

[0006] Preferably, the anti-loose subassembly further includes a plurality of springs and an annular plate, a plurality of expansion slots are formed in the left side wall of the flange A, the left and right ends of the springs are fixedly connected with the annular plate and the right side wall of the expansion slots, respectively, through holes C that coincide with the positions of the through holes A are formed in the annular plate left and right through, and the screws pass through the through holes A, the through holes B and the through holes C and are fixedly connected with the flange A, the flange B and the annular plate through the nuts.

[0007] Preferably, flange A and flange B are provided with sealing components, the sealing components include sealing ring A and a convex ring A fixedly disposed on the left side of flange B, an annular groove A is formed on the right side wall of flange A, the sealing ring A is located inside the annular groove A, and when the screw is fixedly connected to flange A and flange B, the convex ring A is inserted into the annular groove A and fixedly connected to the sealing ring A.

[0008] Preferably, the sealing assembly further includes a sealing ring B, a convex ring B fixedly disposed on the left side of the flange B and located inside the convex ring A, and an annular groove B located inside the annular groove A is formed on the right side wall of the flange A. The sealing ring B is located inside the annular groove B. When the screw is fixedly connected to the flange A and the flange B, the convex ring B is inserted into the annular groove B and fixedly connected to the sealing ring B.

[0009] Preferably, when the sliding column contacts and connects with the side wall of the arc groove away from the through groove, the positions of through hole A and through hole B coincide.

[0010] Preferably, a magnetic ring is fixedly installed on the right side of the flange B, the cylinder is made of iron, and when the sliding column is in contact with the side wall of the arc groove away from the through groove, the cylinder and the magnetic ring are magnetically attracted to each other.

[0011] Preferably, both sealing ring A and sealing ring B are made of fluororubber.

[0012] The beneficial effects of this utility model are as follows: When using this utility model, flange A is placed to the left of flange B. The stud is screwed into the screw hole and fixedly connected to flange A. The sliding column and cylinder are inserted into the through groove, so that the cylinder is located on the right side of flange B. At this time, flange A and flange B are in contact. Flange B is rotated so that the sliding column enters the arc groove, so that the cylinder is in contact with the right side wall of flange B. When the sliding column contacts the side wall of the arc groove away from the through groove, the positions of through hole A and through hole B coincide. The screw is passed through through hole A, through hole B and through hole C. The nut is screwed into the screw and pressed on the annular plate, so that the screw is fixedly connected to flange A, flange B and annular plate, completing the assembly of flange A and flange B. Since the nut is pressed on the annular plate, the spring will exert force on the annular plate. The plate and nut apply elastic force, causing the nut threads to tighten against the screw threads, thus preventing the screw from loosening. Because the cylinder abuts against the right side wall of flange B, and the cylinder diameter is larger than the sliding column diameter, and the arc groove width matches the sliding column, the cylinder will be locked on the right side of flange B, making flange A and flange B tightly fitted, thus preventing gaps between flange A and flange B. In summary, this utility model has the beneficial effects of preventing screw loosening and preventing gaps between flange A and flange B, solving the problem that traditional stainless steel flanges have relatively poor vibration damping performance, and that stainless steel flanges are prone to bolt loosening or even falling off when in a high-vibration working environment for a long time, leading to poor sealing and material leakage. Attached Figure Description

[0013] Appendix Figure 1This is a front view of the present invention;

[0014] Appendix Figure 2 This is a schematic diagram of the right side structure of this utility model;

[0015] Appendix Figure 3 This is a schematic diagram of the left side structure of this utility model;

[0016] Appendix Figure 4 This is the right view of the present invention;

[0017] Appendix Figure 5 For the appendix Figure 4 Sectional view at point AA;

[0018] Appendix Figure 6 For the appendix Figure 4 Sectional view at point BB.

[0019] In the diagram: 1. Flange A; 2. Flange B; 3. Screw; 4. Nut; 5. Through hole A; 6. Through hole B; 7. Sliding stud; 8. Stud; 9. Cylindrical rod; 10. Screw hole; 11. Arc groove; 12. Through groove; 13. Spring; 14. Annular plate; 15. Expansion groove; 16. Through hole C; 17. Sealing ring A; 18. Raised ring A; 19. Annular groove A; 20. Sealing ring B; 21. Raised ring B; 22. Annular groove B; 23. Magnetic ring. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] like Figures 1-6As shown, this utility model discloses an anti-loosening stainless steel flange, including flange A1, flange B2 located to the right of flange A1, a plurality of screws 3 and nuts 4. Flange A1 and flange B2 are respectively provided with a plurality of through holes A5 and B6 extending through to the left and right. The screws 3 pass through the through holes A5 and B6 and are then fixedly connected to flange A1 and flange B2 by nuts 4. An anti-loosening component is provided on flange A1, the anti-loosening component including a sliding column 7, which is fixedly disposed on the left and right sides of the sliding column 7. The right-side studs 8 and cylinders 9 have diameters larger than those of the sliding column 7. A screw hole 10 is provided on the right side wall of flange A1. The stud 8 is screwed into the screw hole 10 and fixedly connected to flange A1. Flange B2 has an arc-shaped groove 11 and a through groove 12 communicating with the arc-shaped groove 11. The sliding column 7 is located inside the arc-shaped groove 11, and the cylinder 9 is located on the right side of flange B2. The widths of the arc-shaped groove 11 and the through groove 12 are matched with those of the sliding column 7 and the cylinder 9, respectively. In use, flange A1 is placed to the left of flange B2. The stud 8 is screwed into the screw hole 10 and fixedly connected to flange A1. The sliding stud 7 and cylinder 9 are inserted into the through groove 12, with cylinder 9 positioned to the right of flange B2. At this point, flange A1 and flange B2 are in contact. Flange B2 is rotated so that the sliding stud 7 enters the arc groove 11, causing cylinder 9 to contact the right side wall of flange B2. When the sliding stud 7 contacts the side wall of the arc groove 11 away from the through groove 12, the through holes A5 and B6 coincide. The screw 3 is passed through through holes A5, B6, and C16. The nut 4 is screwed into the screw 3 and pressed onto the annular plate 14, fixing the screw 3 to flange A1, flange B2, and annular plate 14, thus completing the assembly of flange A1 and flange B2. Because the nut 4 is pressed onto the annular plate 14, the spring... 13 applies elastic force to the annular plate 14 and nut 4, causing the threads of nut 4 to abut against the threads of screw 3, thus preventing screw 3 from loosening. Since the cylinder 9 abuts against the right side wall of flange B2, and the diameter of cylinder 9 is larger than the diameter of sliding column 7, and the width of arc groove 11 matches that of sliding column 7, cylinder 9 will be locked on the right side of flange B2, making flange A1 and flange B2 tightly fitted, thus preventing gaps between flange A1 and flange B2. In summary, this utility model has the beneficial effects of preventing screw 3 from loosening and preventing gaps between flange A1 and flange B2, solving the problem that traditional stainless steel flanges have relatively poor vibration damping performance, and that stainless steel flanges are prone to bolt loosening or even falling off when in a high-vibration working environment for a long time, leading to poor sealing and material leakage.

[0022] Preferably, the anti-loosening assembly further includes several springs 13 and an annular plate 14. Several expansion grooves 15 are provided on the left side wall of flange A1. The left and right ends of the springs 13 are fixedly connected to the right side walls of the annular plate 14 and the expansion grooves 15, respectively. The annular plate 14 has through holes C16 that coincide with the position of through holes A5. The screw 3 passes through through holes A5, B6, and C16 and is then fixedly connected to flanges A1, B2, and the annular plate 14 via nuts 4. Because the left and right ends of the springs 13 are fixedly connected to the right side walls of the annular plate 14 and the expansion grooves 15, when the screw 3 is passed through through holes A5, B6, and C16, and the nut 4 is screwed into the screw 3 and pressed against the annular plate 14, the springs 13 apply elastic force to the annular plate 14 and the nut 4, causing the threads of the nut 4 to abut against the threads of the screw 3, thus preventing the screw 3 from loosening.

[0023] Preferably, flanges A1 and B2 are provided with sealing assemblies, which include a sealing ring A17 and a convex ring A18 fixedly disposed on the left side of flange B2. An annular groove A19 is formed on the right side wall of flange A1, and the sealing ring A17 is located inside the annular groove A19. When the screw 3 is fixedly connected to flanges A1 and B2, the convex ring A18 inserts into the annular groove A19 and is fixedly connected to the sealing ring A17. Because the annular groove A19 is formed on the right side wall of flange A1, and the sealing ring A17 is located inside the annular groove A19, when the screw 3 is fixedly connected to flanges A1 and B2 by the nut 4, the convex ring A18 will insert into the annular groove A19 and be fixedly connected to the sealing ring A17, thus improving the sealing performance.

[0024] Preferably, the sealing assembly further includes a sealing ring B20, a convex ring B21 fixedly disposed on the left side of flange B2 and located inside the convex ring A18, and an annular groove B22 located inside an annular groove A19 on the right side wall of flange A1. The sealing ring B20 is located inside the annular groove B22. When the screw 3 is fixedly connected to flange A1 and flange B2, the convex ring B21 inserts into the annular groove B22 and is fixedly connected to the sealing ring B20. Since the annular groove B22 located inside the annular groove A19 is provided on the right side wall of flange A1, and the sealing ring B20 is located inside the annular groove B22, when the screw 3 is fixedly connected to flange A1 and flange B2 through nut 4, the convex ring B21 will insert into the annular groove B22 and be fixedly connected to the sealing ring B20, which further improves the sealing performance.

[0025] Preferably, when the sliding column 7 contacts and connects with the side wall of the arc groove 11 away from the through groove 12, the positions of through holes A5 and B6 coincide. Since the positions of through holes A5 and B6 coincide when the sliding column 7 contacts and connects with the side wall of the arc groove 11 away from the through groove 12, it facilitates the positioning of through holes A5 and B6.

[0026] Preferably, a magnetic ring 23 is fixedly installed on the right side of the flange B2. The cylinder 9 is made of iron. When the sliding column 7 contacts the side wall of the arc groove 11 away from the through groove 12, the cylinder 9 and the magnetic ring 23 are magnetically attracted to each other. Since the cylinder 9 and the magnetic ring 23 are magnetically attracted to each other when the sliding column 7 contacts the side wall of the arc groove 11 away from the through groove 12, it prevents the sliding column 7 from sliding randomly, making it convenient for the screw 3 to be inserted into the through hole A5 and the through hole B6.

[0027] Preferably, both sealing ring A17 and sealing ring B20 are made of fluororubber. Because both sealing ring A17 and sealing ring B20 are made of fluororubber, they possess characteristics such as corrosion resistance and wear resistance.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A non-loosening stainless steel flange, comprising a flange A (1), a flange B (2) located to the right of flange A (1), a plurality of screws (3) and nuts (4), wherein flange A (1) and flange B (2) are respectively provided with a plurality of through holes A (5) and through holes B (6) extending through to the left and right, and the screws (3) pass through the through holes A (5) and through holes B (6) and are then fixedly connected to flange A (1) and flange B (2) by nuts (4), characterized in that: The flange A (1) is provided with an anti-loosening component, which includes a sliding column (7), a stud (8) and a cylinder (9) respectively fixed on the left and right sides of the sliding column (7). The diameters of the stud (8) and the cylinder (9) are larger than the diameter of the sliding column (7). A screw hole (10) is provided on the right side wall of the flange A (1). The stud (8) is screwed into the screw hole (10) and fixedly connected to the flange A (1). The flange B (2) is provided with an arc groove (11) and a through groove (12) communicating with the arc groove (11). The sliding column (7) is located inside the arc groove (11), and the cylinder (9) is located on the right side of the flange B (2). The widths of the arc groove (11) and the through groove (12) are matched with the sliding column (7) and the cylinder (9) respectively.

2. The anti-loosening stainless steel flange according to claim 1, characterized in that: The anti-loosening assembly also includes several springs (13) and an annular plate (14). Several expansion grooves (15) are provided on the left side wall of the flange A (1). The left and right ends of the springs (13) are fixedly connected to the right side wall of the annular plate (14) and the expansion grooves (15) respectively. The annular plate (14) has through holes C (16) that coincide with the position of the through hole A (5). The screw (3) passes through the through hole A (5), through hole B (6) and through hole C (16) and is fixedly connected to the flange A (1), flange B (2) and annular plate (14) by the nut (4).

3. The anti-loosening stainless steel flange according to claim 1, characterized in that: The flanges A (1) and B (2) are provided with sealing components. The sealing components include a sealing ring A (17) and a convex ring A (18) fixedly disposed on the left side of the flange B (2). An annular groove A (19) is provided on the right side wall of the flange A (1). The sealing ring A (17) is located inside the annular groove A (19). When the screw (3) is fixedly connected to the flanges A (1) and B (2), the convex ring A (18) is inserted into the annular groove A (19) and fixedly connected to the sealing ring A (17).

4. The anti-loosening stainless steel flange according to claim 3, characterized in that: The sealing assembly also includes a sealing ring B (20) and a convex ring B (21) fixedly disposed on the left side of the flange B (2) and located inside the convex ring A (18). An annular groove B (22) located inside the annular groove A (19) is provided on the right side wall of the flange A (1). The sealing ring B (20) is located inside the annular groove B (22). When the screw (3) is fixedly connected to the flange A (1) and the flange B (2), the convex ring B (21) is inserted into the annular groove B (22) and fixedly connected to the sealing ring B (20).

5. The anti-loosening stainless steel flange according to claim 1, characterized in that: When the sliding column (7) and the arc groove (11) are in contact with the side wall away from the through groove (12), the through hole A (5) and the through hole B (6) are in the same position.

6. The anti-loosening stainless steel flange according to claim 5, characterized in that: A magnetic ring (23) is fixedly installed on the right side of the flange B (2). The cylinder (9) is made of iron. When the sliding column (7) and the side wall of the arc groove (11) away from the through groove (12) are in contact, the cylinder (9) and the magnetic ring (23) are magnetically connected.

7. The anti-loosening stainless steel flange according to claim 4, characterized in that: Both sealing ring A (17) and sealing ring B (20) are made of fluororubber.

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