Industrial pipeline connecting flange plate

Abstract

The utility model relates to the technical field of industry, and discloses an industrial pipeline connecting flange plate which comprises a first flange plate, a second flange plate and an outer sleeve, connecting pipes are fixedly connected to the outer side walls of the first flange plate and the second flange plate, and a limiting groove is formed in the inner side wall of the first flange plate. A second sealing ring is arranged on the inner side wall of the second flange plate, a first sealing ring is arranged on the inner side wall of the second flange plate and located at the cornice, and threaded grooves are formed in the outer walls of the first flange plate and the second flange plate. Compared with the prior art, the industrial pipeline connecting flange plate has a good sealing and connecting effect, the situation of water leakage at the connecting position is not prone to occurring, and meanwhile the industrial pipeline connecting flange plate further has a good protection effect on the flange and effectively prevents the flange from being corroded and oxidized.

Description

Technical Field

[0001] The utility model relates to the field of industrial technology, in particular to an industrial pipeline connecting flange. Background Art

[0002] Flanges are usually used when connecting industrial pipelines. Flange connection or flange joint refers to a detachable connection in which flanges and bolts are connected to each other as a combined sealing structure; flanges are parts that connect pipes to each other and are used to connect pipe ends.

[0003] At present, most flanges are connected by bolts, and the connection is relatively simple. After long-term use, the flanges are prone to leakage at the connection. Moreover, since the flanges are exposed to the outside, they are more susceptible to moisture, corrosion and oxidation. Therefore, those skilled in the art provide an industrial pipeline connection flange to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an industrial pipeline connection flange, which has good sealing and connection effects, making it difficult for water leakage to occur at the connection. At the same time, the device also has a good protective effect on the flange, effectively preventing the flange from being corroded and oxidized.

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

[0006] An industrial pipeline connecting flange comprises a first flange, a second flange and a sleeve, wherein the outer walls of the first flange and the second flange are fixedly connected with connecting pipes, the inner wall of the first flange is provided with a limiting groove, the inner wall of the second flange is provided with a second sealing ring and the inner wall thereof is provided with a first sealing ring at the eaves, and the outer walls of the first flange and the second flange are provided with threaded grooves.

[0007] Through the above technical solution, a better sealing effect can be achieved through the snap-fitting between the second sealing ring and the limiting groove.

[0008] Furthermore, the inner wall of the outer sleeve is provided with a convex thread, and the convex thread matches with the thread between the two thread grooves;

[0009] Through the above technical solution, the first flange and the second flange can be connected through the outer sleeve, making the connection tighter.

[0010] Furthermore, air bags are embedded in the inner wall of the outer jacket near the eaves on both sides, and the outer walls of the two air bags are provided with connectors that penetrate the outer jacket, and the upper ends of the connectors are connected to the balloons;

[0011] Through the above technical solution, the two flanges can be protected under the action of the airbag.

[0012] Furthermore, the second sealing ring is snap-fitted with the limiting groove;

[0013] The above technical solution facilitates sealing.

[0014] Furthermore, the first sealing ring is snap-fitted with the inner eave of the first flange;

[0015] Through the above technical solution, sealing can be further performed.

[0016] Furthermore, the first flange and the second flange are fixedly connected by a plurality of bolts and corresponding nuts;

[0017] The above technical solution makes it easy to connect the two flanges.

[0018] Furthermore, after the airbag is expanded, it will fit tightly with the corresponding connecting pipe;

[0019] The above technical solution can achieve the function of sealing the flange.

[0020] The utility model has the following beneficial effects:

[0021] 1. Compared with the existing industrial pipeline connection flange, the industrial pipeline connection flange proposed by the utility model, when put into use, firstly, the second sealing ring and the limit groove are snap-fitted, and then the first sealing ring and the inner eaves of the first flange are snap-fitted, and then the thread groove and the convex thread are mutually matched. Under the cooperation of the outer sleeve, the connection between the two flanges can be made tighter and less likely to leak.

[0022] 2. Compared with the existing industrial pipeline connecting flange, the industrial pipeline connecting flange proposed by the utility model is more efficient when put into use. The outer wall of the two flanges is sleeved with a sleeve thread, and then the two air bags are pumped with air respectively under the action of the air bags, so that the air bags expand and fit tightly with the outer wall of the corresponding connecting pipe, so as to protect the two flanges and avoid oxidation corrosion caused by exposure to the outside, thereby greatly improving the service life of the flanges. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an axonometric view of an industrial pipeline connection flange proposed by the utility model;

[0024] Figure 2This is a partial structural schematic diagram of an industrial pipeline connection flange proposed by the utility model;

[0025] Figure 3 This is a schematic diagram of the sealing ring structure of an industrial pipeline connecting flange proposed by the utility model;

[0026] Figure 4 This is a schematic diagram of the second flange structure of an industrial pipeline connecting flange proposed by the utility model;

[0027] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. First flange; 2. Second flange; 3. Bolts; 4. Nuts; 5. Connecting pipe; 6. Outer sleeve; 7. Male thread; 8. Airbag; 9. Connecting head; 10. Balloon; 11. First sealing ring; 12. Second sealing ring; 13. Thread groove; 14. Limiting groove. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1-5 The utility model provides an embodiment: an industrial pipeline connecting flange, including a first flange 1, a second flange 2 and a sleeve 6, the outer walls of the first flange 1 and the second flange 2 are fixedly connected with a connecting pipe 5, the inner wall of the first flange 1 is provided with a limiting groove 14, the inner wall of the second flange 2 is provided with a second sealing ring 12 and the inner wall thereof is provided with a first sealing ring 11 at the eaves, the outer walls of the first flange 1 and the second flange 2 are provided with a threaded groove 13, and the second sealing ring 12 and the limiting groove 14 are snap-fitted to achieve a better sealing effect.

[0032] The inner wall of the jacket 6 is provided with a convex thread 7, and the convex thread 7 is threadedly matched with the two thread grooves 13. The first flange 1 and the second flange 2 can be connected through the jacket 6 to make the connection tighter. Air bags 8 are embedded in the inner wall of the jacket 6 near the eaves on both sides. The outer walls of the two air bags 8 are provided with connectors 9 and penetrate the jacket 6. The upper end of the connector 9 is connected to a balloon 10. Under the action of the air bags 8, the two flanges can be protected. The second sealing ring 12 is snap-fitted with the limiting groove 14 to facilitate sealing. The first sealing ring 11 is snap-fitted with the inner eaves of the first flange 1 to further seal. The first flange 1 and the second flange 2 are fixedly connected by multiple bolts 3 and corresponding nuts 4 to facilitate connecting the two flanges. After the air bags 8 are inflated, they will fit tightly with the corresponding connecting pipes 5, which can seal the flanges.

[0033] Working principle: When the utility model is in use, firstly, the second sealing ring 12 and the limiting groove 14 are snap-fitted together, and then the first sealing ring 11 is snap-fitted together with the inner eaves of the first flange 1. Then, the first flange 1 and the second flange 2 can be connected by the cooperation between the bolt 3 and the nut 4. Subsequently, the outer sleeve 6 is threadedly connected to the first flange 1 and the second flange 2, and air is pumped into the two air bags 8 through the balloon 10, so that the two air bags 8 and the connecting pipe 5 are tightly fitted, thereby protecting the flanges.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An industrial pipeline connection flange, comprising a first flange, a second flange and a jacket, characterized in that: The outer walls of the first flange and the second flange are fixedly connected with a connecting pipe, the inner wall of the first flange is provided with a limiting groove, the inner wall of the second flange is provided with a second sealing ring and the inner wall thereof is provided with a first sealing ring at the eaves, and the outer walls of the first flange and the second flange are provided with a threaded groove.

2. The industrial pipeline connection flange according to claim 1, characterized in that: The inner wall of the outer sleeve is provided with a convex thread, and the convex thread matches with the thread between the two thread grooves.

3. The industrial pipeline connection flange according to claim 1, characterized in that: Air bags are embedded in the inner wall of the outer jacket near the eaves on both sides, and connectors are provided on the outer walls of the two air bags and penetrate the outer jacket, and the upper ends of the connectors are connected to the balloons.

4. The industrial pipeline connection flange according to claim 1, characterized in that: The second sealing ring is snap-fitted with the limiting groove.

5. The industrial pipeline connection flange according to claim 1, characterized in that: The first sealing ring is snap-fitted with the inner eave of the first flange.

6. The industrial pipeline connection flange according to claim 1, characterized in that: The first flange and the second flange are fixedly connected by a plurality of bolts and corresponding nuts.

7. The industrial pipeline connection flange according to claim 3, characterized in that: After the airbag is inflated, it will fit tightly with the corresponding connecting pipe.

Images