Flexible pipeline connecting device

Abstract

The utility model belongs to the technical field of pipeline connection, and particularly relates to a pipeline flexible connecting device which comprises an output pipe, a receiving pipe used for being connected with the output pipe in an inserted mode and an air bag arranged on the side wall of the output pipe in a sleeved mode. A guide block is arranged on the side wall of the output pipe, and a through hole is formed in the guide block in the axial direction of the output pipe. In the process that the output pipe of the flexible pipeline connecting device is inserted into the receiving pipe, the output pipe and the receiving pipe are in butt joint through matching of the guide block and the guide groove; after butt joint is completed, the air bag is inflated through the air pump to be expanded, so that a seam between the output pipe and the receiving pipe is sealed, meanwhile, the expanded air bag exerts large enough friction force on the two pipelines, and therefore the two pipelines are prevented from being separated. In order to place the inflation tube, a through hole is formed in the guide block in the scheme.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline connection, and in particular relates to a pipeline flexible connection device. Background Art

[0002] During the pneumatic conveying process, the conveying pipeline needs to be connected to the silo to transport the raw materials in the silo.

[0003] In the existing pneumatic conveying system, the connection between the two pipelines is generally a hard connection method, such as a clamp, a thread, etc. This connection method causes a large amplitude vibration at the interface. In order to reduce the vibration, the current method is: an airbag is set on the side wall of a pipeline, the gap between the two is sealed by inflating the airbag, and the friction between the airbag and the pipeline wall is used to prevent the pipeline from detaching.

[0004] However, in the above scheme, during the installation and disassembly of the pipeline, an air pump is needed to inflate and deflate the airbag, and an air pipe is needed to connect the air pump and the airbag. In the existing scheme, the air pipe is directly set in the gap between the two pipelines, so the gap between the two pipelines must be at least larger than the air pipe. This large gap requires a large tightening force for the airbag to prevent the two pipelines from detaching, and the air pipe exposed outside is also easily damaged. Utility Model Content

[0005] The utility model aims to provide a pipeline flexible connection device to solve the technical problems described in the background technology.

[0006] In order to solve the above technical problems, the utility model provides a pipeline flexible connection device, which includes: an output tube and a receiving tube for plugging the output tube, and an air bag sleeved on the side wall of the output tube; wherein a guide block is provided on the side wall of the output tube, and a through hole is opened on the guide block along the axial direction of the output tube; the inflation tube on the air bag passes through the through hole and is connected to the air pump.

[0007] Furthermore, a first annular accommodating groove is formed on the side wall of the output pipe along its circumference, and the airbag is arranged in the first annular accommodating groove.

[0008] Furthermore, a guide groove adapted to the guide block is provided on the inner wall of the receiving tube.

[0009] Furthermore, a second annular receiving groove adapted to the first annular receiving groove is provided on the inner wall of the receiving tube.

[0010] Furthermore, the end of the receiving tube is sleeved on the end of the output tube; the inner wall of the receiving tube is provided with a boss, and the end surface of the output tube abuts against the boss.

[0011] Furthermore, the inner diameter of the output tube is the same as the inner diameter of the receiving tube.

[0012] Furthermore, the through hole extends toward one end of the airbag to the first annular accommodating groove.

[0013] The beneficial effect of the utility model is that during the process of inserting the output tube of the pipeline flexible connection device into the receiving tube, the two are docked by the cooperation of the guide block and the guide groove; after the docking is completed, the airbag is inflated by the air pump to expand it, thereby sealing the joint between the output tube and the receiving tube, and at the same time, the tightened airbag applies a sufficiently large friction force to the two pipelines respectively, thereby preventing the two pipelines from detaching; wherein, in order to place the inflation tube, the present solution opens a through hole on the guide block, and at the same time, because the guide block limits the position of the inflation tube, there is no need for a large gap between the output tube and the receiving tube.

[0014] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0015] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the pipeline flexible connection device;

[0018] Figure 2 It is a schematic diagram of the structure of the output tube;

[0019] Figure 3 It is a schematic diagram of the structure of the air bag and the inflation tube;

[0020] Figure 4 It is a cross-sectional view after the output tube and the receiving tube are connected;

[0021] Figure 5 It is a structural diagram of the receiving tube.

[0022] In the figure:

[0023] Output pipe 1, guide block 11, through hole 12, first annular receiving groove 13;

[0024] Receiving tube 2, guide groove 21, second annular receiving groove 22, boss 23;

[0025] Airbag 3, inflation tube 31;

[0026] Air pump 4. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this embodiment provides a pipeline flexible connection device, which includes: an output tube 1 and a receiving tube 2 for plugging into the output tube 1, and an air bag 3 sleeved on the side wall of the output tube 1; wherein a guide block 11 is provided on the side wall of the output tube 1, and a through hole 12 is opened on the guide block 11 along the axial direction of the output tube 1; the inflation tube 31 on the air bag 3 passes through the through hole 12 and is connected to the air pump 4.

[0029] In this embodiment, a guide groove 21 adapted to the guide block 11 is formed on the inner wall of the receiving tube 2 .

[0030] In this embodiment, during the process of inserting the output tube 1 into the receiving tube 2, the two are docked by the cooperation of the guide block 11 and the guide groove 21; after the docking is completed, the airbag 3 is inflated by the air pump 4 to expand it, thereby sealing the joint between the output tube 1 and the receiving tube 2. At the same time, the tightened airbag 3 applies a sufficiently large friction force to the two pipelines respectively, thereby preventing the two pipelines from detaching; wherein, in order to place the inflation tube 31, the present solution opens a through hole 12 on the guide block 11, and at the same time, because the guide block 11 limits the position of the inflation tube 31, there is no need for a large gap between the output tube 1 and the receiving tube 2.

[0031] like Figure 2 As shown, in this embodiment, a first annular accommodating groove 13 is formed on the side wall of the output pipe 1 along its circumference, and the airbag 3 is arranged in the first annular accommodating groove 13 .

[0032] like Figure 5As shown, in this embodiment, a second annular receiving groove 22 adapted to the first annular receiving groove 13 is opened on the inner wall of the receiving tube 2 .

[0033] In this embodiment, the first annular receiving groove 13 limits the placement position of the airbag 3 to prevent the airbag 3 from shifting during use. At the same time, the second annular receiving groove 22 can accommodate the inflated airbag 3, which increases the lateral force of the airbag 3 on the receiving tube 2 and better prevents the receiving tube 2 from detaching.

[0034] like Figure 5 As shown, in this embodiment, the end of the receiving tube 2 is sleeved on the end of the output tube 1 ; a boss 23 is provided on the inner wall of the receiving tube 2 , and the end surface of the output tube 1 abuts against the boss 23 .

[0035] In this embodiment, when the end face of the output tube 1 abuts against the boss 23, the first annular accommodating groove 13 and the second annular accommodating groove 22 are aligned to form a cavity for accommodating the airbag 3, indicating that the two pipelines have been moved into place and the airbag 3 can be inflated; wherein, optionally, the air pump 4 is operated manually.

[0036] In this embodiment, the inner diameter of the output tube 1 is the same as the inner diameter of the receiving tube 2 .

[0037] In this embodiment, the inner diameter of the output tube 1 is the same as the inner diameter of the receiving tube 2 to prevent the flow rate from changing due to the change in diameter.

[0038] In this embodiment, the through hole 12 extends toward one end of the airbag 3 to the first annular receiving groove 13 .

[0039] In summary, during the insertion of the output tube 1 of the pipeline flexible connection device into the receiving tube 2, the two are docked by the cooperation of the guide block 11 and the guide groove 21; after the docking is completed, the airbag 3 is inflated by the air pump 4 to expand it, thereby sealing the joint between the output tube 1 and the receiving tube 2. At the same time, the tightened airbag 3 applies a sufficiently large friction force to the two pipelines respectively, thereby preventing the two pipelines from detaching; wherein, in order to place the inflation tube 31, the present solution opens a through hole 12 on the guide block 11, and at the same time, because the guide block 11 limits the position of the inflation tube 31, there is no need for a large gap between the output tube 1 and the receiving tube 2.

[0040] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0041] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A flexible pipe connection device, characterized in that: include: An output tube, a receiving tube for plugging the output tube, and an air bag sleeved on the side wall of the output tube; in A guide block is provided on the side wall of the output pipe, and a through hole is opened on the guide block along the axial direction of the output pipe; The inflation tube on the air bag passes through the through hole and is connected to the air pump.

2. The pipeline flexible connection device according to claim 1, characterized in that: The side wall of the output pipe is provided with a first annular accommodating groove along its circumference, and the air bag is arranged in the first annular accommodating groove.

3. The pipeline flexible connection device according to claim 1, characterized in that: A guide groove matched with the guide block is provided on the inner wall of the receiving tube.

4. The pipeline flexible connection device according to claim 2, characterized in that: The inner wall of the receiving tube is provided with a second annular receiving groove adapted to the first annular receiving groove.

5. The pipeline flexible connection device according to claim 1, characterized in that: The end of the receiving tube is sleeved on the end of the output tube; The inner wall of the receiving tube is provided with a boss, and the end surface of the output tube abuts against the boss.

6. The pipeline flexible connection device according to claim 5, characterized in that: The inner diameter of the output tube is the same as the inner diameter of the receiving tube.

7. The pipeline flexible connection device according to claim 2, characterized in that: The through hole extends toward one end of the airbag to the first annular receiving groove.

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