CN216952073U - A pipe bolted flange joint - Google Patents

Abstract

The utility model relates to the technical field of pipeline connection devices, and discloses a pipeline bolt connection flange joint, which comprises a first flange and a second flange butted with the first flange, the first flange and the second flange The flanges are connected with each other, a first bolt is threadedly connected between the first flange and the second flange, a connection joint is fixedly installed on the upper end of the first flange, and a built-in pipe is fixedly installed inside the connection joint, A snap groove is jointly set between the connecting joint and the built-in pipe, one end of the pipe is inserted into the snap groove, the built-in pipe is located in the inner layer of the pipeline, and is used to limit the inner ring of the pipeline, and the connecting joint is located on the outer layer of the pipeline , used to seal the pipeline, the inner and outer ends of the pipeline are clamped, and the sealing performance is strong. After clamping, the clamp is clamped at the position of the connecting joint, and finally the clamp is fastened with the second bolt, which can prevent The connection between the pipeline and the first flange is loose, and the use effect is good.

Description

A pipe bolted flange joint

technical field

The utility model relates to the technical field of pipeline connection devices, in particular to a pipeline bolt connection flange joint.

Background technique

Flange joint is a device used to connect two sets of pipes. The range of flange joints is very wide. Flange rubber joints, flange expansion joints, flange force transmission joints, flange hose joints, etc. are collectively referred to as flange joints. The flange joint means that its connection method is connected by the flange plate, and there are many kinds of materials. When purchasing, we can choose the right product according to its material.

Traditional flange joints are generally connected to pipes through threads. Although this connection method can achieve a good fixing effect, it has poor durability and is easy to damage, and the working environment of flange joints is uncertain. If it is exposed to the outdoors for a long time, its Corrosion easily occurs at the threaded connection and leads to slippage, which affects the sealing effect of the pipeline; therefore, it does not meet the existing requirements, and a pipeline bolted flange joint is proposed.

Utility model content

The utility model provides a pipeline bolted flange joint, which has the beneficial effects of facilitating the connection between two groups of pipelines, strong sealing and good anti-dropping effect, and solves the problem that the threaded connection mentioned in the above-mentioned background technology is prone to occur. Corrosion and lead to slippage problems that affect the sealing effect of pipes.

The utility model provides the following technical solutions: a pipe bolted flange joint, comprising a first flange and a second flange butted with the first flange, the first flange and the second flange are in communication, so A first bolt is threadedly connected between the first flange and the second flange, a connecting joint is fixedly installed on the upper end of the first flange, a built-in pipe is fixedly installed inside the connecting joint, and the connecting joint and A snap-fit slot is commonly arranged between the built-in pipes.

As an optional solution of the pipe bolt connection flange joint of the present invention, a clamp is inserted and connected on the connection joint, and a second bolt is threadedly connected to the clamp.

As an optional solution of the pipe bolt connection flange joint of the present invention, wherein: the connecting joint is inlaid with a rubber hose, the rubber hose is in a ring structure, and the rubber hose is connected to the clamp. adaptation.

As an optional solution of the pipe bolted flange joint of the present invention, wherein: the lower end of the first flange is fixedly installed with a plug-in pipe, the outer wall of the plug-in pipe is provided with external threads, and the plug-in pipe is provided with external threads. The nozzle is communicated with the second flange.

As an optional solution of the pipe bolted flange joint of the present invention, wherein: the second flange is fixedly installed with a connecting pipe that communicates with the plug-in pipe, and the inner wall of the connecting pipe is installed with an inner pipe. The inner thread is threadedly connected with the outer thread.

As an optional solution of the pipe bolted flange joint of the present invention, a fixing plate is fixedly installed on the connecting pipe, and the diameter of the fixing plate is larger than that of the connecting pipe.

As an optional solution of the pipe bolted flange joint of the present invention, a limit ring is fixedly installed on the plug-in pipe, and the limit ring is installed on the upper end of the connecting pipe.

As an optional solution of the pipe bolted flange joint of the present invention, there are four buckling plates hinged on the inner wall of the fixing plate, and elastic bands are hinged on the lower ends of the four buckling plates. One end of the strap away from the buckle plate is hinged to the inner wall of the fixing plate.

The utility model has the following beneficial effects:

1. The pipe is bolted to the flange joint, one end of the pipe is inserted into the clamping groove, the built-in pipe is located in the inner layer of the pipe, and is used to limit the inner ring of the pipe. Sealing, the inner and outer ends of the pipe are clamped, and the sealing performance is strong. After clamping, the clamp is clamped at the position of the rubber hose. The rubber hose is attached to the pipe and the built-in pipe, and the rubber material has strong sealing performance , it is convenient to seal the pipeline, and finally the clamp is fastened by the second bolt, which can prevent the connection between the pipeline and the first flange from loosening, and has good use effect.

2. The pipe is bolted to the flange joint, and the external thread of the plug-in pipe is threadedly connected with the internal thread of the connecting pipe, so that the first flange and the second flange can be fixed. When the plug-in pipe and the connecting pipe are threadedly connected, The fixing plate is sleeved on the outside of the connecting pipe, and is in contact with the lower end of the first flange, so that the connection is easily sealed, and the external factors are prevented from affecting the thread, and the protection effect is good.

3. The pipe is bolted to the flange joint. When the plug-in pipe rotates downward, the lower end of the plug-in pipe gradually squeezes the buckle plate. During the extrusion process, the elastic band is gradually compressed until the limit ring passes through the buckle plate. The buckle plate is in conflict with the outer wall of the plug-in tube, and the plug-in tube cannot move back, which is convenient for locking the plug-in tube and the connecting tube, and the fixing effect is good.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention.

Figure 2 is an overall exploded view of the utility model.

FIG. 3 is an overall cross-sectional view of the utility model.

FIG. 4 is a state diagram of the first flange and the second flange of the utility model after connection.

In the figure: 1, the first flange; 11, the plug pipe; 12, the limit ring; 13, the external thread; 2, the second flange; 21, the connecting pipe; 22, the fixing plate; 23, the buckle plate; 24, Elastic band; 25, internal thread; 3, connecting joint; 31, rubber hose; 32, clamp; 33, second bolt; 4, built-in pipe; 5, clamping groove; 6, first bolt.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1

This embodiment is intended to facilitate solving the problem of how to connect pipes and flanges. Please refer to FIG. 1-2 , a pipe bolted flange joint includes a first flange 1 and a first flange 1 connected to the first flange 1 . Two flanges 2, the first flange 1 and the second flange 2 are connected, the first bolt 6 is threadedly connected between the first flange 1 and the second flange 2, and the upper end of the first flange 1 is fixedly installed with The connecting joint 3 is fixedly installed with a built-in pipe 4 inside the connecting joint 3 , and a clamping groove 5 is jointly provided between the connecting joint 3 and the built-in pipe 4 .

A clamp 32 is inserted and connected to the connecting joint 3 , and a second bolt 33 is threadedly connected to the clamp 32 .

One end of the pipe is inserted into the snap groove 5, the built-in pipe 4 is located in the inner layer of the pipe, which is used to limit the inner ring of the pipe, and the connecting joint 3 is located in the outer layer of the pipe, which is used to seal the pipe. Both are clamped and have strong sealing performance. After clamping, the clamp 32 is sleeved on the connecting joint 3, and the clamp 32 is fastened by the second bolt 33, which can prevent the connection between the pipeline and the first flange 1. The other end of the pipeline is connected with the second flange 2 in the same way, the first flange 1 and the second flange 2 are fastened by the first bolts 6, and the two are connected to each other, which is convenient for connecting the two flanges. Group pipeline, the use effect is good.

The connecting joint 3 is inlaid with a rubber hose 31 , the rubber hose 31 is an annular structure, and the rubber hose 31 is matched with the clamp 32 .

The clamp 32 is clamped at the position of the rubber hose 31, and the rubber hose 31 is close to the pipeline and fits with the built-in tube 4. The rubber material has strong sealing performance, which is convenient for sealing the pipeline and has a good use effect.

Example 2

This embodiment is intended to facilitate solving the problem of how to connect the first flange 1 and the second flange 2. This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figures 1-4 , the lower end of the first flange 1 is fixedly installed with a plug-in pipe 11 , the outer wall of the plug-in pipe 11 is provided with an external thread 13 , and the plug-in pipe 11 communicates with the second flange 2 .

The second flange 2 is fixedly mounted with a connecting pipe 21 which communicates with the plug-in pipe 11 , and an inner thread 25 is mounted on the inner wall of the connecting pipe 21 , and the inner thread 25 is threadedly connected with the outer thread 13 .

Insert the plug tube 11 of the first flange 1 into the connection tube 21 of the second flange 2, and the two can be connected to each other. The first flange 1 and the second flange 2 are fixed, and the operation is simple.

A fixing plate 22 is fixedly mounted on the connecting pipe 21 , and the diameter of the fixing plate 22 is larger than that of the connecting pipe 21 .

When the plug-in pipe 11 and the connecting pipe 21 are threadedly connected, the fixing plate 22 is sleeved on the outside of the connecting pipe 21, and is in contact with the lower end of the first flange 1, which is convenient to seal the connection, prevent external factors from affecting the thread, and protect the Works well.

Example 3

This embodiment is intended to facilitate solving the problem of how to protect the connection between the first flange 1 and the second flange 2. This embodiment is an improvement made on the basis of Embodiment 2. For details, please refer to FIG. 3-4, a limit ring 12 is fixedly installed on the plug-in pipe 11 , and the limit ring 12 is installed on the upper end of the connecting pipe 21 .

By installing the limiting ring 12 , the limiting ring 12 is overlapped on the connecting pipe 21 , which facilitates the limiting of the connecting pipe 21 .

Four buckling plates 23 are hinged on the inner wall of the fixing plate 22 , and elastic bands 24 are hinged on the lower ends of the four buckling plates 23 .

When the plug-in tube 11 rotates downward, the lower end of the plug-in tube 11 gradually squeezes the buckle plate 23. During the extrusion process, the elastic band 24 is gradually compressed until the limit ring 12 passes over the buckle plate 23, and the buckle plate 23 and the buckle plate 23 are compressed gradually. The outer walls of the plug-in tube 11 are in conflict with each other, and the plug-in tube 11 cannot move back, which is convenient for locking the plug-in tube 11 and the connecting tube 21, and the fixing effect is good.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principles of the present invention, several improvements and modifications can be made. These improvements and retouching should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a pipeline bolted flange connects, includes first flange (1) and second flange (2) with first flange (1) butt joint, first flange (1) and second flange (2) are linked together, its characterized in that: threaded connection has first bolt (6) between first flange (1) and second flange (2), the upper end fixed mounting of first flange (1) has attach fitting (3), the inside fixed mounting of attach fitting (3) has built-in pipe (4), be provided with joint groove (5) between attach fitting (3) and built-in pipe (4) jointly.

2. A pipe bolting flange joint according to claim 1, wherein: the connector (3) is provided with a hoop (32) in a penetrating and connecting manner, and the hoop (32) is provided with a second bolt (33) in a threaded connection manner.

3. A pipe bolting flange joint according to claim 2, wherein: inlay on attach fitting (3) and have rubber hose (31), rubber hose (31) are the loop configuration, rubber hose (31) and clamp (32) looks adaptation.

4. A pipe bolting flange joint according to claim 1, wherein: the lower end of the first flange (1) is fixedly provided with an inserting pipe (11), the outer wall of the inserting pipe (11) is provided with an external thread (13), and the inserting pipe (11) is communicated with the second flange (2).

5. A pipe bolted flange joint according to claim 4, characterized in that: the connecting pipe (21) communicated with the inserting pipe (11) is fixedly installed on the second flange (2), an internal thread (25) is installed on the inner wall of the connecting pipe (21), and the internal thread (25) is in threaded connection with the external thread (13).

6. A pipe bolted flange joint according to claim 5, characterized in that: the connecting pipe (21) is fixedly provided with a fixing plate (22), and the diameter of the fixing plate (22) is larger than that of the connecting pipe (21).

7. A bolted flange joint for pipes according to claim 6, wherein: the inserting pipe (11) is fixedly provided with a limiting ring (12), and the limiting ring (12) is arranged at the upper end of the connecting pipe (21).

8. A pipe bolted flange joint according to claim 6, characterized in that: four buckling plates (23) are hinged to the inner wall of the fixing plate (22), elastic belts (24) are hinged to the lower ends of the four buckling plates (23), and one ends, far away from the buckling plates (23), of the elastic belts (24) are hinged to the inner wall of the fixing plate (22).

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