Thick universal guide cylinder

Abstract

The utility model provides a thick and whole universal guide cylinder, which relates to the technical field of guide cylinders and comprises a guide cylinder body, an expansion joint is arranged at a large opening end of the guide cylinder body, a connecting flange is arranged at one opening of the expansion joint far away from the guide cylinder body, and a flexible lining is arranged between the connecting flange and the guide cylinder body. Protruding clamping rings are arranged at the positions where the flexible lining and the connecting flange make contact with the flexible lining and the guide cylinder, the flexible lining and the protruding clamping rings are connected in a sealed mode, and a lining mechanism is arranged at the position of a cavity between the flexible lining and the expansion joint. According to the utility model, the expansion joint is additionally arranged at the inlet end of the guide cylinder, so that the orientation of the guide cylinder can be adjusted, the structural characteristics of the expansion joint can be universally adjusted, and the expansion joint can be completely installed and used in the bent expansion joints with different angles; and the integrated design of the guide cylinder body, the expansion joint and the connecting flange can ensure the strength of the device in use.

Description

Technical Field

[0001] The utility model relates to the technical field of guide tubes, in particular to a thick universal guide tube. Background Art

[0002] When the guide tube acts on the expansion joint of the pipeline with strong scouring force, it can play a wear-resistant role, protect the bellows from medium scouring, and extend the service life of the expansion joint. It can play a diversion role in the expansion joint. In addition, the guiding role of the guide tube can avoid the instability of the bellows caused by the expansion joint absorbing the deformation of the pipeline, so that the expansion joint can reach its normal service life and function.

[0003] When installing the existing guide tube, the axes of the inlet and outlet are generally in the same straight line. This situation is caused by the structure of the guide tube. Therefore, when the front and rear paths of the guide tube are not uniform, the position of the channel needs to be adjusted to ensure the normal installation and use of the guide tube. This feature causes technical defects in the guide tube and needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art. By installing an expansion joint at the inlet end of the guide cylinder, the direction of the guide cylinder can be adjusted, and the structural characteristics of the expansion joint can be universally adjusted. It can be installed and used in expansion joints bent at different angles. The integrated design of the guide cylinder, the expansion joint and the connecting flange can also ensure the strength of the utility model when in use, providing a thick universal guide cylinder.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a thick universal guide cylinder, comprising: a guide cylinder body, an expansion joint is provided at the large mouth end of the guide cylinder body, a connecting flange is provided at a port of the expansion joint away from the guide cylinder body, a flexible lining is provided between the connecting flange and the guide cylinder body, raised clamping rings are provided at the contact points between the flexible lining and the connecting flange and the flexible lining and the guide cylinder body, the flexible lining and the raised clamping ring are sealedly connected, and a lining mechanism is provided in the cavity between the flexible lining and the expansion joint.

[0006] As a preferred embodiment, the lining mechanism includes a lining strip, a support foot is provided on one side surface of the lining strip, and a Y-shaped top piece is provided on a side surface of the support foot away from the lining strip.

[0007] As a preferred implementation, the lining strip is fixedly connected to the supporting foot, and the lining strip is fixedly bonded to the flexible lining.

[0008] As a preferred embodiment, there are multiple lining mechanisms, which are arranged in a circular array with the axis of the guide cylinder as the axis.

[0009] As a preferred embodiment, the number of support feet on each of the lining strips is the same as the number of folds of the expansion joint.

[0010] As a preferred embodiment, the other two ends of the Y-shaped top piece are clamped on the folded inner wall of the expansion joint.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are as follows: the utility model allows the orientation of the guide cylinder to be adjusted by adding an expansion joint at the inlet end of the guide cylinder, and the structural features of the expansion joint can be universally adjusted, and can be installed and used in expansion joints bent at different angles, and the integrated design of the guide cylinder, the expansion joint and the connecting flange can also ensure the strength of the utility model when in use. At the same time, the utility model connects the expansion joint and the flexible lining through a designed lining mechanism, so that when the expansion joint is deformed, the shape of the flexible lining can be deformed to fit the deformation of the expansion joint, keeping the change of the internal channel area of ​​the flexible lining within the error range, while ensuring the flow efficiency, the smooth inner wall of the flexible lining can reduce impact friction and ensure the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the thick universal flow guide provided by the utility model.

[0013] Figure 2 It is a half-section schematic diagram of the thick universal flow guide tube provided by the utility model.

[0014] Figure 3 This is an enlarged schematic diagram of the A area of ​​the thick universal flow guide provided by the utility model.

[0015] Figure 4 The utility model provides a schematic diagram of the inner lining structure of the thick universal flow guide tube.

[0016] Legend: 1. Guide cylinder; 2. Expansion joint; 3. Connecting flange; 4. Flexible lining; 5. Lining mechanism; 51. Lining strip; 52. Support foot; 53. Y-shaped top piece; 6. Raised snap ring. Implementation

[0017] 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. Example

[0018] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model provides a technical solution: a thick universal guide cylinder, comprising: a guide cylinder body 1, an expansion joint 2 is provided at the large end of the guide cylinder body 1, a connecting flange 3 is provided at a port of the expansion joint 2 away from the guide cylinder body 1, a flexible lining 4 is provided between the connecting flange 3 and the guide cylinder body 1, raised clamping rings 6 are provided at the contact points between the flexible lining 4 and the connecting flange 3 and the flexible lining 4 and the guide cylinder body 1, the flexible lining 4 and the raised clamping ring 6 are sealedly connected, and a lining mechanism 5 is provided at the cavity between the flexible lining 4 and the expansion joint 2.

[0019] In the present embodiment, by adding an expansion joint 2 between the guide cylinder 1 and the connecting flange 3, the orientation of the guide cylinder 1 can be adjusted. When it is necessary to install the guide cylinder at the bent expansion joint 2, the utility model can perform targeted adjustments. Moreover, since the bending structure is arranged at the inlet end of the guide cylinder 1, the flexible lining 4 on the inner side is less impacted and can maintain a relatively stable channel function under the support of the lining mechanism 5. Example

[0020] like Figure 2 , Figure 3 and Figure 4 As shown, the lining mechanism 5 includes a lining strip 51, a support foot 52 is provided on one side of the lining strip 51, and a Y-shaped top piece is provided on one side of the support foot 52 away from the lining strip 51;

[0021] There are multiple lining mechanisms 5, and they are arranged in a circular array with the axis of the guide cylinder 1 as the axis center;

[0022] Furthermore, the lining strip 51 is fixedly connected to the supporting foot 52, and the lining strip 51 is fixedly bonded to the flexible lining 4;

[0023] Moreover, the number of the supporting feet 52 on each lining strip 51 is the same as the number of the folds of the expansion joint 2 , and the other two ends of the Y-shaped top piece are clamped on the inner wall of the folds of the expansion joint 2 .

[0024] In this embodiment, when the expansion joint 2 is bent, the wrinkles on the inner side of the expansion joint 2 are gradually stretched, the curvature of the bend becomes larger, and the pressure change amplitude of the Y-shaped top piece is small. At the same time, the wrinkles on the outer side of the bend are gradually squeezed, the curvature of the bend becomes smaller, and the pressure change amplitude of the Y-shaped top piece is large. The Y-shaped top piece is squeezed and deformed, and the length of the Y-shaped top piece becomes longer. The pressure on the flexible lining 4 through the lining strip 51 is increased, and the supporting force is increased, so that the inner side of the flexible lining 4 can still be in a smooth state. Therefore, when the expansion joint 2 is bent, the inner wall of the flexible lining 4 can still be in a smooth state, reducing impact friction.

[0025] Working principle: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, before using the utility model, first adjust the bending angle of the expansion joint 2 according to the bending angle of the expansion joint 2 at the installation location, and then install and use it; during the installation process, when the expansion joint 2 is bent, the folds on the inner side of the bend are squeezed, and their width becomes smaller, while the folds on the outer side of the bend are stretched, and their width becomes larger. In this case:

[0026] 1. The Y-shaped top piece in the fold inside the bend is squeezed to reduce its width. Due to the structural characteristics of the Y-shape, its length becomes longer, thereby increasing its support force on the support foot 52, and then increasing the support force of the support foot 52 on the flexible lining 4 through the lining strip 51. In addition, since the lining strip 51 is in the shape of a strip as a whole, the support force generated by the multiple support feet 52 on it is dispersed, and no convex points will appear, thereby maintaining the smoothness of the inner wall of the flexible lining 4;

[0027] 2. Since the folds on the outside of the bend are stretched, the pressure change amplitude on the corresponding Y-shaped top piece is small. Only the pressure generated by the deformation causes the lining strip 51 to bend. The deformed lining strip 51 generates pressure on the flexible lining 4 to make it bend as well. Due to the flatness of the lining strip 51, the flexible lining 4 can still be in a smooth state at the bend on the outside. In general, since the part of the flexible lining 4 on the outside of the bend is also stretched, and due to its flexible characteristics, the distance between the part on the outside of the bend and the expansion joint 2 will increase. At this time, the lining mechanism 5 can pull the flexible lining 4, so that the distance between the flexible lining 4 and the expansion joint 2 remains in a state with a small change amplitude, thereby ensuring that the internal flow area of ​​the flexible lining 4 has a small change amplitude.

[0028] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. Thick universal flow guide tube, characterized in that: include: A flow guide cylinder (1), wherein an expansion joint (2) is provided at a large end of the flow guide cylinder (1), a connecting flange (3) is provided at a port of the expansion joint (2) away from the flow guide cylinder (1), a flexible liner (4) is provided between the connecting flange (3) and the flow guide cylinder (1), a raised clamping ring (6) is provided at the contact points between the flexible liner (4) and the connecting flange (3) and the flexible liner (4) and the flow guide cylinder (1), the flexible liner (4) and the raised clamping ring (6) are sealedly connected, and a lining mechanism (5) is provided at the cavity between the flexible liner (4) and the expansion joint (2).

2. The thick universal flow guide tube according to claim 1, characterized in that: The lining mechanism (5) comprises a lining strip (51), a support foot (52) being provided on one side surface of the lining strip (51), and a Y-shaped top piece being provided on one side surface of the support foot (52) away from the lining strip (51).

3. The thick universal flow guide tube according to claim 2, characterized in that: The lining strip (51) and the supporting foot (52) are fixedly connected, and the lining strip (51) and the flexible lining (4) are fixedly bonded.

4. The thick universal flow guide tube according to claim 1, characterized in that: There are a plurality of lining mechanisms (5), which are arranged in a circular array with the axis of the flow guide cylinder (1) as the axis center.

5. The thick universal flow guide tube according to claim 2, characterized in that: The number of support feet (52) on each lining strip (51) is the same as the number of folds of the expansion joint (2).

6. The thick universal flow guide tube according to claim 2, characterized in that: The other two ends of the Y-shaped top piece are clamped on the folded inner wall of the expansion joint (2).

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