A multiple sealing flange

Abstract

The utility model discloses a multiple sealing flange, comprising a first flange and a second flange, wherein a locking assembly for connecting the first flange to the second flange is provided on one side of the first flange, a first mounting shell is fixedly connected to an outer wall of one side of the first flange, a second mounting shell is fixedly connected to an outer wall of one side of the second flange, a special-shaped rod is slidably connected to an inner wall of one side of the second mounting shell, one end of the special-shaped rod is an inclined surface, a sliding groove is provided on one side of the second flange, a special-shaped block is slidably connected to the sliding groove, and the special-shaped block slides with the inclined surface, a mounting block is fixedly connected to one side of the special-shaped rod, and a pressure block is rotatably connected to an inner wall of one side of the first mounting shell. The utility model solves the problem that flange vibration easily leads to bolt loosening, resulting in insufficient tightness of the connection, thereby causing leakage accidents, and makes flange installation more convenient, and can also make the flange connection have better sealing performance.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to a multiple sealing flange. Background Art

[0002] Flange, also known as flange flange, is a part that connects pipes to each other and is used to connect pipe ends. Flange connection is to fix two pipes, pipe fittings or equipment on a flange plate respectively, add flange gaskets between the two flange plates, and fasten them together with bolts to complete the connection. Flanges need to seal various interfaces when connecting.

[0003] After searching, the Chinese patent with publication number CN208311717U shows that the utility model has the advantages of improving the sealing performance and effect, and is more suitable for pipeline systems with high sealing requirements. However, it has the following defects: the flange connection is fixed by bolts. When in use, some equipment will vibrate during operation, thereby driving the flange to vibrate, which can easily lead to the loosening of the bolts, making the connection not tight enough, thereby causing leakage accidents. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a multiple sealing flange.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A multiple sealing flange comprises a first flange and a second flange, wherein a locking assembly is provided on one side of the first flange to connect the first flange with the second flange, a first mounting shell is fixedly connected to an outer wall of one side of the first flange, a second mounting shell is fixedly connected to an outer wall of one side of the second flange, a special-shaped rod is slidably connected to an inner wall of one side of the second mounting shell, one end of the special-shaped rod is an inclined surface, a sliding groove is provided on one side of the second flange, a special-shaped block is slidably connected in the sliding groove, and the special-shaped block slides with the inclined surface, a mounting block is fixedly connected to one side of the special-shaped rod, a pressure block is rotatably connected to an inner wall of one side of the first mounting shell, and the pressure block contacts the special-shaped block, a mounting cylinder is fixedly connected to the top of the special-shaped rod, a first spring is fixedly connected to the bottom inner wall of the mounting cylinder, and the first spring contacts the second mounting shell.

[0007] As a further solution of the utility model, the locking assembly includes a mounting rod, which is fixedly connected to the top of the first flange, and the mounting rod is provided with a through groove. A second connecting rod is rotatably connected to one side of the second flange, and cylindrical pins are fixedly connected to both sides of the second connecting rod, and the cylindrical pins are in contact with the mounting rod, and a second spring is fixedly connected to one side of the second connecting rod, and the second spring is in contact with the second flange.

[0008] As a further solution of the utility model, the bottom of the second connecting rod is fixedly connected with a knob through the second flange, and the circumferential outer wall of the knob is provided with a plurality of anti-slip grooves.

[0009] As a further solution of the utility model, a sealing groove is provided on the top of the second flange, a third sealing ring is fixedly connected in the sealing groove, and the third sealing ring is in contact with the first flange.

[0010] As a further solution of the utility model, a first sealing ring is fixedly connected to one side of the first flange.

[0011] As a further solution of the utility model, a second sealing ring is fixedly connected to one side of the second flange.

[0012] As a further solution of the utility model, the two pressing blocks are in contact with the first mounting shell.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model moves the inclined block, and the special-shaped rod moves under the action of the inclined surface and the slide groove. Under the action of the first spring, the pressing block presses against the first mounting shell, so that the flanges are more stable when connected, and solves the problem that the flange vibration easily leads to the loosening of the bolts, making the connection not tight enough, thereby causing leakage accidents.

[0015] 2. The utility model provides a connection component, and the operator completes the quick connection of the flange by turning the knob under the action of the cylindrical pin, the through groove and the second spring, making the installation of the flange more convenient.

[0016] 3. The utility model makes the flange connection have better sealing performance through the coordinated use of the first sealing ring and the second sealing ring, improves the sealing performance and effect of the flange connection, and effectively prevents the occurrence of leakage accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional front structure of a multiple sealing flange proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the interior of a multiple sealing flange proposed by the utility model;

[0019] Figure 3 This is an enlarged schematic diagram of the A part of a multiple sealing flange proposed by the utility model;

[0020] Figure 4 It is an enlarged schematic diagram of a multi-sealing flange shaped rod proposed by the utility model;

[0021] Figure 5This is a schematic diagram of the interior of a multi-sealing flange shaped rod proposed by the utility model;

[0022] Figure 6 It is an enlarged schematic diagram of a multi-sealing flange connecting rod proposed by the utility model;

[0023] In the figure: 1. first sealing ring; 2. first flange; 3. second flange; 4. first mounting shell; 5. second mounting shell; 6. second sealing ring; 7. knob; 8. third sealing ring; 9. pressure block; 10. first spring; 11. special-shaped rod; 12. mounting block; 13. inclined plane; 14. special-shaped block; 15. slide groove; 16. mounting cylinder; 17. connecting rod; 18. cylindrical pin; 19. through groove; 20. second spring; 21. mounting rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-Figure 6 A multiple sealing flange comprises a first flange 2 and a second flange 3, wherein a locking assembly for connecting the first flange 2 with the second flange 3 is provided on one side of the first flange 2, a first mounting shell 4 is fixed to an outer wall of one side of the first flange 2 by bolts, a second mounting shell 5 is fixed to an outer wall of one side of the second flange 3 by bolts, a special-shaped rod 11 is slidably connected to an inner wall of one side of the second mounting shell 5, one end of the special-shaped rod 11 is an inclined surface 13, a slide groove 15 is provided on one side of the second flange 3, a special-shaped block 14 is slidably connected in the slide groove 15, and the special-shaped block 14 slides with the inclined surface 13, a mounting block 12 is fixed to one side of the special-shaped rod 11 by bolts, and an inner wall of one side of the first mounting shell 4 is slidably connected to an inner wall of the second mounting shell 5, and an end of the special-shaped rod 11 is an inclined surface 13, a slide groove 15 is provided on one side of the second flange 3, a special-shaped block 14 is slidably connected in the slide groove 15, and the special-shaped block 14 slides with the inclined surface 13, a mounting block 12 is fixed to one side of the special-shaped rod 11 by bolts, and an inner wall of one side of the first mounting shell 4 is slidably connected to an inner wall of the second mounting shell 5 The wall is rotatably connected with a pressure block 9, and the pressure block 9 contacts the mounting block 12. The top of the special-shaped rod 11 is fixed with a mounting tube 16 by bolts. The bottom inner wall of the mounting tube 16 is welded with a first spring 10, and the first spring 10 contacts the second mounting shell 5. The operator moves the special-shaped block 14. Under the action of the inclined surface 13, the special-shaped block 14 slides in the slide groove 15, thereby driving the special-shaped rod 11 to move. The special-shaped rod moves 11, thereby driving the first spring 10 to reset. At the same time, under the action of the mounting block 12, the pressure block 9 rotates, and the pressure block 9 rotates and then resists the first mounting shell 4, thereby fixing the first flange 2 and the second flange 3, making the first flange 2 and the second flange 3 more stable when connected.

[0026] In the utility model, the locking assembly includes a mounting rod 21, which is fixed to the top of the first flange 2 by bolts. The mounting rod 21 is provided with a through slot 19. The second flange 3 is rotatably connected to the second connecting rod 17. Cylindrical pins 18 are fixed to both sides of the second connecting rod 17 by bolts, and the cylindrical pins 18 are in contact with the through slots 19. The bottom of the second connecting rod 17 passes through the second flange 3 and is fixed with a knob 7 by bolts. The circumferential outer wall of the knob 7 is provided with a plurality of anti-slip grooves. During installation, the operator first rotates the knob 7, and the knob 7 rotates to drive the second connecting rod 17. When the cylindrical pin 18 on the second connecting rod 17 is just aligned with the through slot 19, the second connecting rod 17 is pushed into the through slot 19, and the second connecting rod 17 is rotated again. The second connecting rod 17 rotates to drive the cylindrical pin 18 to rotate. Under the action of the second spring 20, the cylindrical pin 18 pushes against the mounting rod 21, thereby completing For the quick connection of the flange, a knob 7 is fixed to the bottom of the second connecting rod 17 by bolts, and a plurality of anti-slip grooves are provided on the circumferential outer wall of the knob 7, thereby increasing the friction force of the knob 7 when in use, making it easier for the operator to operate the knob 7. A sealing groove is provided on the top of the second flange 3, and a third sealing ring 8 is bonded in the sealing groove, and the third sealing ring 8 is in contact with the first flange 2. The third sealing ring 8 improves the sealing performance when the first flange 2 is connected to the second flange 3. A first sealing ring 1 is bonded to one side of the first flange 2, and a second sealing ring 6 is bonded to one side of the second flange 3. The triple sealing design makes the flange connection more sealed, effectively avoids leakage accidents, and improves the sealing performance and effect of the flange connection. Two pressing blocks 9 are in contact with the first mounting shell 4, and the pressing block 9 rotates and then presses against the first mounting shell 4, thereby fixing the first flange 2 to the second flange 3.

[0027] Working principle: When using the sealing flange, the operator first places the third sealing ring 8 into the sealing groove, and then makes the first flange 2 fit with the second flange 3, which can improve the sealing effect when the two flanges are connected, and then places a sealing ring on the contact between the first flange 2 and the second flange 3 and the pipeline, which can further improve the sealing effect of the flange when in use. The operator then turns the knob 7, and the knob 7 turns to drive the second connecting rod 17. When the cylindrical pin 18 on the second connecting rod 17 is just right on the through groove 19, the second connecting rod 17 is pushed into the through groove 19, and then the second connecting rod 17 is turned. The connecting rod 17 rotates to drive the cylindrical pin 18 to rotate. Under the action of the second spring 20, the cylindrical pin 18 abuts against the mounting rod 21, and the flange can be quickly connected. The operator then moves the special-shaped block 14. Under the action of the inclined surface 13, the special-shaped block 14 slides in the slide groove 15 to drive the special-shaped rod 11 to move. The special-shaped rod moves 11 to drive the first spring 10 to reset. At the same time, under the action of the mounting block 12, the pressing block 9 rotates, and the pressing block 9 rotates and then abuts against the first mounting shell 4, thereby fixing the first flange 2 and the second flange 3, making the first flange 2 and the second flange 3 more stable when connected.

[0028] In addition, although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multiple sealing flange, comprising a first flange (2) and a second flange (3), characterized in that: A locking assembly for connecting the first flange (2) and the second flange (3) is provided on one side of the first flange (2); a first mounting shell (4) is fixedly connected to an outer wall of one side of the first flange (2); a second mounting shell (5) is fixedly connected to an outer wall of one side of the second flange (3); a special-shaped rod (11) is slidably connected to an inner wall of one side of the second mounting shell (5); one end of the special-shaped rod (11) is an inclined surface (13); a sliding groove (15) is provided on one side of the second flange (3); and a sliding groove (15) is slidably connected to the inner wall of one side of the second mounting shell (5). A special-shaped block (14) is connected, and the special-shaped block (14) slides with the inclined surface (13); one side of the special-shaped rod (11) is fixedly connected to a mounting block (12); an inner wall of one side of the first mounting shell (4) is rotatably connected to a pressure block (9), and the pressure block (9) is in contact with the mounting block (12); the top of the special-shaped rod (11) is fixedly connected to a mounting tube (16), and the bottom inner wall of the mounting tube (16) is fixedly connected to a first spring (10), and the first spring (10) is in contact with the second mounting shell (5).

2. A multiple sealing flange according to claim 1, characterized in that: The locking assembly comprises a mounting rod (21), the mounting rod (21) being fixedly connected to the top end of the first flange (2), the mounting rod (21) being provided with a through slot (19), a second connecting rod (17) being rotatably connected to one side of the second flange (3), cylindrical pins (18) being fixedly connected to both sides of the second connecting rod (17), and the cylindrical pins (18) being in contact with the mounting rod (21), a second spring (20) being fixedly connected to one side of the second connecting rod (17), and the second spring (20) being in contact with the second flange (3).

3. A multiple sealing flange according to claim 2, characterized in that: The bottom of the second connecting rod (17) passes through the second flange (3) and is fixedly connected to a knob (7), and a plurality of anti-slip grooves are provided on the circumferential outer wall of the knob (7).

4. A multiple sealing flange according to claim 2, characterized in that: A sealing groove is provided at the top of the second flange (3), a third sealing ring (8) is fixedly connected in the sealing groove, and the third sealing ring (8) is in contact with the first flange (2).

5. The multiple sealing flange according to claim 1, characterized in that: A first sealing ring (1) is fixedly connected to one side of the first flange (2).

6. A multiple sealing flange according to claim 4, characterized in that: A second sealing ring (6) is fixedly connected to one side of the second flange (3).

7. The multiple sealing flange according to claim 1, characterized in that: The two pressing blocks (9) are in contact with the first mounting shell (4).

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