Combined flange with self-adaptive sealing function

Abstract

The utility model relates to a combined flange with a self-adaptive sealing function, which belongs to the technical field of combined flanges and comprises a first flange, a second flange is arranged at the bottom of the first flange, two limiting mechanisms are arranged on the first flange, a sealing assembly is arranged on the second flange, and the sealing assembly is connected with the second flange. The limiting mechanism comprises a box fixedly connected with the interior of the first flange, a worm is rotationally connected between the inner bottom wall and the inner top wall of the box, and a two-way screw is rotationally connected between the left side and the right side of the inner wall of the box. According to the combined flange with the self-adaptive sealing function, by arranging the limiting mechanism, the combined flange has the limiting and fixing effects, the effect of rapidly connecting the first flange and the second flange is achieved, and therefore the combining efficiency of the first flange and the second flange is improved; therefore, the stability after the first flange and the second flange are connected is improved, and the practicability of the combined flange is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of combined flanges, in particular to a combined flange with an adaptive sealing function. Background Art

[0002] Flange, also called flange or flange, is a part that connects pipes to each other. It is connected to the pipe end. There are holes on the flange, and bolts make the two flanges tightly connected. Gaskets are used to seal between flanges. Flange is a disc-shaped part, which is most common in pipeline engineering. Flanges are used in pairs. In pipeline engineering, flanges are mainly used for connecting pipelines. At the ends of two pipes that need to be connected, a flange is installed on each.

[0003] For example, patent CN204419779U discloses a new type of combined flange, including a connecting plate, a shear boss I, and a flange plate. The shear boss I is fixed to the side of the load-bearing beam of the flange plate, and the connecting plate is provided with a shear boss II. The connecting plate is buckled on the outside of the shear boss I on the load-bearing beam, and the side of the shear boss II cooperates with the side of the shear boss II. However, the combined flange is connected by bolts, which reduces the combination efficiency and is inconvenient for users to use. Therefore, a combined flange with an adaptive sealing function is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a combination flange with an adaptive sealing function, which has the advantages of improving the combination efficiency and solves the problem that the combination flange is connected by bolts, which reduces the combination efficiency and is inconvenient for users.

[0005] To achieve the above object, the utility model provides the following technical solution: a combined flange with an adaptive sealing function, comprising a first flange, a second flange is arranged at the bottom of the first flange, two limiting mechanisms are arranged on the first flange, and a sealing assembly is arranged on the second flange;

[0006] The limiting mechanism includes a box body fixedly connected inside the first flange, a worm being rotatably connected between the inner bottom wall and the inner top wall of the box body, a bidirectional screw being rotatably connected between the left and right sides of the inner wall of the box body, a worm wheel meshing with the worm being fixedly connected to the outer side of the bidirectional screw, two movable plates being threadedly connected to the outer side of the bidirectional screw, support blocks being fixedly connected to the bottoms of the two movable plates, and limiting rods being fixedly connected to the opposite sides of the two movable plates.

[0007] Furthermore, the sealing assembly includes an annular groove opened on the second flange, an annular cavity is opened inside the second flange, a plurality of limit springs are fixedly connected inside the annular cavity, a support plate is fixedly connected to the top of the plurality of limit springs, a support rod is fixedly connected to the top of the support plate, an extrusion plate is fixedly connected to the top of the support plate, and a sealing ring is placed on the top of the extrusion plate.

[0008] Furthermore, a handle for rotation is fixedly connected to the top of the worm.

[0009] Furthermore, a support groove is provided on the inner bottom wall of the box body, and the support block is slidably connected to the support groove.

[0010] Furthermore, a connection groove is formed on the top of the second flange, and the size of the connection groove is adapted to the size of the box body.

[0011] Furthermore, a limiting groove is provided inside the second flange, and the size of the limiting groove matches the size of the limiting rod.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. The combined flange with adaptive sealing function has a limiting fixing effect by setting a limiting mechanism, so as to achieve the effect of quickly connecting the first flange and the second flange, thereby improving the combination efficiency of the first flange and the second flange. The worm wheel and the worm have self-locking properties, thereby increasing the stability of the first flange and the second flange after connection, facilitating the use of users and improving the practicality of the combined flange.

[0014] 2. The combined flange with adaptive sealing function has a sealing function by setting a sealing component, so as to achieve the effect of sealing the connection between the first flange and the second flange, thereby increasing the sealing performance after the first flange and the second flange are connected. At the same time, it is convenient to extrude the sealing ring through the extrusion plate to improve the sealing effect, which is convenient for users to use and increases the practicality of the combined flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0017] Figure 3 For this utility model Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0018] Figure 4This is a schematic diagram of the annular groove structure of the utility model.

[0019] In the figure: 1. first flange; 2. second flange; 3. housing; 4. worm; 5. bidirectional screw; 6. worm wheel; 7. movable plate; 8. support block; 9. limit rod; 10. annular groove; 11. annular cavity; 12. limit spring; 13. support plate; 14. support rod; 15. extrusion plate; 16. sealing ring; 17. handle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4 In this embodiment, a combined flange with an adaptive sealing function includes a first flange 1, a second flange 2 is arranged at the bottom of the first flange 1, two limiting mechanisms are arranged on the first flange 1, and a sealing assembly is arranged on the second flange 2.

[0022] The limiting mechanism includes a box body 3 fixedly connected inside the first flange 1, a connecting groove is opened on the top of the second flange 2, the size of the connecting groove is adapted to the size of the box body 3, a worm 4 is rotatably connected between the inner bottom wall and the inner top wall of the box body 3, a handle 17 for rotation is fixedly connected to the top of the worm 4, a bidirectional screw 5 is rotatably connected between the left and right sides of the inner wall of the box body 3, and a worm wheel 6 meshing with the worm 4 is fixedly connected to the outer side of the bidirectional screw 5.

[0023] It should be noted that the worm wheel 6 and the worm 4 are self-locking, which increases the stability of the first flange 1 and the second flange 2 after being connected.

[0024] See also Figures 1 to 4 In this embodiment, the outer side of the bidirectional screw 5 is threadedly connected with two movable plates 7, and the bottom of the two movable plates 7 is fixedly connected with a support block 8. The inner bottom wall of the box body 3 is provided with a support groove, and the support block is slidably connected to the support groove 8. The two movable plates 7 are fixedly connected to the opposite sides with a limiting rod 9, and a limiting groove is provided inside the second flange 2, and the size of the limiting groove is adapted to the size of the limiting rod 9.

[0025] It should be noted that the first flange 1 and the second flange 2 are quickly connected, thereby improving the combination efficiency of the first flange 1 and the second flange 2.

[0026] See also Figures 1 to 4In this embodiment, the sealing assembly includes an annular groove 10 opened on the second flange 2, an annular cavity 11 is opened inside the second flange 2, a plurality of limit springs 12 are fixedly connected inside the annular cavity 11, a support plate 13 is fixedly connected to the top of the plurality of limit springs 12, a support rod 14 is fixedly connected to the top of the support plate 13, an extrusion plate 15 is fixedly connected to the top of the support plate 14, and a sealing ring 16 is placed on the top of the extrusion plate 15.

[0027] It should be noted that the effect of sealing the connection between the first flange 1 and the second flange 2 is achieved, thereby increasing the sealing performance after the first flange 1 and the second flange 2 are connected, and at the same time, it is convenient to extrude the sealing ring 16 through the extrusion plate to improve the sealing effect.

[0028] The working principle of the above embodiment is: the combined flange with adaptive sealing function,

[0029] 1) When in use, place the sealing ring 16 on the extrusion plate 15, then insert the box body 3 on the first flange 1 into the connecting groove opened on the second flange 2, turn the handle 17, the handle 17 drives the worm 4 to rotate, the worm 4 drives the worm wheel 6 to rotate, the worm wheel 6 drives the bidirectional screw 5 to rotate, the bidirectional screw 5 drives the two movable plates 7 to move back to back, and by setting the support block 8 and the support groove, the movable plate 7 is limited and supported, which increases the stability of the movable plate 7 during movement, thereby driving the two limiting rods 9 to move back to back and insert them into the limiting groove opened in the second flange 2, so as to achieve the effect of quickly connecting the first flange 1 and the second flange 2, thereby improving the combination efficiency of the first flange 1 and the second flange 2, and the worm wheel 6 and the worm 4 are self-locking, thereby increasing the stability of the first flange 1 and the second flange 2 after connection.

[0030] 2) By setting up a sealing component, the limit spring 12 is extended to squeeze the extrusion 15 through the support plate 13 and the support rod 14, and the extrusion plate 15 squeezes the sealing ring 16, thereby increasing the sealing performance after the first flange 1 and the second flange 2 are connected. At the same time, the gas entering the second flange 2 squeezes the extrusion plate 15, further increasing the sealing performance after the first flange 1 and the second flange 2 are connected, so that the combined flange has the function of adaptive sealing, thereby improving the sealing effect between the first flange 1 and the second flange 2, facilitating the use of users, and improving the practicality of the combined flange.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined flange with an adaptive sealing function, comprising a first flange (1), characterized in that: A second flange (2) is arranged at the bottom of the first flange (1), two limiting mechanisms are arranged on the first flange (1), and a sealing assembly is arranged on the second flange (2); The limiting mechanism comprises a box body (3) fixedly connected inside the first flange (1), a worm (4) rotatably connected between the inner bottom wall and the inner top wall of the box body (3), a bidirectional screw (5) rotatably connected between the left and right sides of the inner wall of the box body (3), a worm wheel (6) meshing with the worm (4) fixedly connected to the outer side of the bidirectional screw (5), two movable plates (7) threadedly connected to the outer side of the bidirectional screw (5), a support block (8) fixedly connected to the bottom of the two movable plates (7), and a limiting rod (9) fixedly connected to the opposite sides of the two movable plates (7).

2. The combined flange with adaptive sealing function according to claim 1, characterized in that: The sealing assembly comprises an annular groove (10) formed on a second flange (2); an annular cavity (11) is formed inside the second flange (2); a plurality of limit springs (12) are fixedly connected inside the annular cavity (11); a support plate (13) is fixedly connected to the top of the plurality of limit springs (12); a support rod (14) is fixedly connected to the top of the support plate (13); an extrusion plate (15) is fixedly connected to the top of the support rod (14); a sealing ring (16) is placed on the top of the extrusion plate (15).

3. The combined flange with adaptive sealing function according to claim 1, characterized in that: A handle (17) for rotation is fixedly connected to the top of the worm (4).

4. The combined flange with adaptive sealing function according to claim 1, characterized in that: The inner bottom wall of the box body (3) is provided with a support groove, and the support block (8) is slidably connected to the support groove.

5. The combined flange with adaptive sealing function according to claim 1, characterized in that: A connection groove is provided on the top of the second flange (2), and the size of the connection groove is adapted to the size of the box body (3).

6. The combined flange with adaptive sealing function according to claim 1, characterized in that: A limiting groove is provided inside the second flange (2), and the size of the limiting groove matches the size of the limiting rod (9).

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