S-shaped shock insulation metal hose suitable for multi-direction large displacement compensation

Abstract

The utility model relates to the technical field of pipeline shock insulation, in particular to an S-shaped shock insulation metal hose suitable for multi-directional large displacement compensation, which comprises a telescopic pipeline, flanges are arranged at two ends of the telescopic pipeline through connecting pipes, the telescopic pipeline can be connected with an external pipeline through the flanges, a reinforcing pipe is arranged on the outer side of the telescopic pipeline, and the reinforcing pipe is connected with the telescopic pipeline. And deformation restraining mechanisms with a deformation function are symmetrically arranged on the outer side of the reinforcing pipe. The S-shaped metal flexible hose and the deformable restraining mechanism are combined, installation or displacement deformation is effectively controlled, the product can absorb large axial displacement and large transverse displacement, the requirements that the displacement compensation direction of the shock insulation flexible unit is arbitrary, and the displacement compensation amount is large are met, and the shock insulation flexible unit is suitable for large-scale popularization and application. The safety of a pipeline system is improved, the fatigue life of the pipeline system is prolonged, the structure is simple, the performance is reliable, substantive features are achieved, and the blank of shock insulation flexible pipeline displacement compensation products is filled.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline seismic isolation, in particular to an S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation. Background Art

[0002] Seismic isolation technology has been used in engineering projects in my country since the 1990s. After years of development, this technology has been promoted and applied to a large number of important buildings in my country's public buildings and other fields. In particular, the promulgation and implementation of the "Regulations on Seismic Management of Construction Projects" will surely promote the high-quality development of seismic isolation technology.

[0003] Pipelines are like the blood vessels of a building. Structural seismic isolation is giving rise to the standardized development of pipeline seismic isolation technology. The flexible treatment of pipelines passing through isolation layers and crossing isolation joints (trenches) is the most typical and important structural measure, which can ensure that the building can continue to serve without any repairs after the earthquake, thereby minimizing the impact of the earthquake.

[0004] Traditional pipe flexible parts are basically only used to absorb the thermal expansion and contraction deformation of the pipe. The deformation is small and the deformation process is slow, which is equivalent to quasi-static deformation. In recent years, with the increasing application of seismic isolation technology in the construction field, the problem of seismic isolation of pipes passing through seismic isolation layers and crossing seismic isolation joints has become prominent. Pipeline seismic isolation must be achieved through flexible elements; the increase in the allowable deformation capacity of flexible elements will inevitably lead to an increase in the length of pipeline flexible elements and a decrease in stiffness, which is very likely to cause columnar stability problems of flexible elements. In addition, the displacement direction of an earthquake is unpredictable, and the deformation capacity of seismic isolation flexible parts must meet the preset displacement in any direction.

[0005] Usually, pipes are densely distributed in buildings and the space is small. How to solve the problem of compensating large and randomly oriented earthquake displacements in a small space has always been a technical challenge. The utility model cleverly combines a flexible part and a deformation constraint mechanism to effectively solve the above technical problem, while achieving deformation control of the flexible part and improving the fatigue life of the flexible part. Utility Model Content

[0006] The utility model aims to solve the problem in the existing pipeline seismic isolation technology that the flexible member displacement compensation direction is required to be arbitrary and the displacement compensation amount is large, and proposes an S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation includes a telescopic pipe, both ends of the telescopic pipe are provided with flanges through connecting pipes, and the flanges can be connected to external pipes. A reinforcement pipe is provided on the outside of the telescopic pipe, and a deformation constraint mechanism with a deformation function is symmetrically provided on the outside of the reinforcement pipe, so that the deformation constraint mechanism 6 can deform with the telescopic pipe, thereby effectively controlling the installation and displacement deformation.

[0009] Furthermore, in the utility model, the telescopic pipe is configured as an S-shaped metal hose.

[0010] Furthermore, in the utility model, the metal hose is configured as a corrugated tube.

[0011] Furthermore, the utility model provides that the middle portion of the deformation constraint mechanism is rotatably connected to the reinforcement tube via a clamp, and both ends of the four-bar linkage mechanism are rotatably connected to the flange via a fixing rod, so that deformation rotation can be performed.

[0012] The utility model further provides that the deformation constraint mechanism comprises two groups of connected four-bar mechanisms, the four-bar mechanism is a quadrilateral structure, the four-bar mechanism comprises four groups of hinge plates connected end to end by a pin shaft, the connection by the pin shaft 8 can ensure the axial telescopic deformation and lateral deformation of the pipeline, the two adjacent groups of hinge plates 9 are rotatably connected by the pin shaft 8, which is conducive to rotation, so that the deformation constraint mechanism 6 can deform following the bellows 5, the axial opening movement distance and the lateral opening movement distance of the hinge plates of each group in the four-bar mechanism are not greater than the movement distance of the telescopic pipeline, that is, the axial opening distance and the lateral opening distance of the hinge plates 9 of each group in the deformation constraint mechanism 6 should meet the maximum axial and lateral displacement requirements of the flexible pipeline.

[0013] Furthermore, in the utility model, the reinforcing tube is configured as a metal outer braided mesh sleeve, and the reinforcing tube is connected to the connecting tube via a pressure ring.

[0014] The working principle of the utility model is introduced as follows: the utility model can preset lateral deflection during installation, thereby controlling the deflection radius of the compensation hose, and realizing displacement functions in any direction including stretching, compression, lateral direction and deflection.

[0015] The beneficial effects of the utility model are as follows: the utility model combines the S-shaped metal hose and the deformation constraint mechanism to effectively control the installation or displacement deformation, so that the product can absorb both large axial displacement and large lateral displacement, meet the requirements of the displacement compensation direction of the seismic isolation flexible unit and large displacement compensation amount, improve the safety and fatigue life of the pipeline system, have a simple structure, reliable performance, and substantial characteristics, filling a gap in the displacement compensation products of building seismic isolation flexible pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of an S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation proposed by the utility model;

[0018] Figure 3 This is a front view of a deformation restraint mechanism of an S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation proposed by the utility model;

[0019] Figure 4 It is a side view of a deformation restraining mechanism of an S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation proposed by the utility model;

[0020] Figure 5 This is a schematic diagram of the normal state structure of an S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation proposed by the utility model;

[0021] Figure 6 This is a schematic diagram of the first axial deformation state of an S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation proposed by the utility model;

[0022] Figure 7 This is a schematic diagram of the second lateral deformation state of an S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation proposed by the utility model.

[0023] In the figure: 1. flange; 2. connecting pipe; 3. pressure ring; 4. reinforcing pipe; 5. bellows; 6. deformation restraining mechanism; 7. clamp; 8. axle pin; 9. hinge plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example

[0026] Reference Figure 1-7 An S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation includes a telescopic pipe. Both ends of the telescopic pipe are provided with flanges 1 through a connecting pipe 2. The flange 1 can be connected to an external pipe. A reinforcing pipe 4 is provided on the outside of the telescopic pipe. A deformation constraint mechanism 6 with a deformation function is symmetrically provided on the outside of the reinforcing pipe 4, so that the deformation constraint mechanism 6 can deform with the telescopic pipe, thereby effectively controlling the installation and displacement deformation.

[0027] The utility model combines an S-shaped metal hose and a deformation constraint mechanism to effectively control installation or displacement deformation, so that the product can absorb both large axial displacement and large lateral displacement, meeting the requirements of arbitrary displacement compensation direction and large displacement compensation amount of the seismic isolation flexible unit, improving the safety and fatigue life of the pipeline system, having a simple structure and reliable performance, and having substantial characteristics, filling a gap in displacement compensation products for building seismic isolation flexible pipelines.

[0028] In this embodiment, the telescopic pipe is configured as an S-shaped metal hose.

[0029] In this embodiment, the metal hose is configured as a corrugated tube 5 .

[0030] In this embodiment, the middle part of the deformation constraint mechanism 6 is rotatably connected to the reinforcement tube 4 through the clamp 7, and both ends of the four-bar linkage 6 are rotatably connected to the flange 1 through a fixing rod, so that deformation and rotation can be performed.

[0031] In this embodiment, the deformation constraint mechanism 6 includes two groups of connected four-bar mechanisms, which are quadrilateral structures. The four-bar mechanism includes four groups of hinge plates 9 connected end to end by pins 8. The connection by the pins 8 can ensure the axial telescopic deformation and lateral deformation of the pipeline. The two adjacent groups of hinge plates 9 are rotatably connected by the pins 8, which is conducive to rotation, so that the deformation constraint mechanism 6 can deform along with the bellows 5. The axial opening movement distance and lateral opening movement distance of each group of hinge plates 9 in the four-bar mechanism are not greater than the movement distance of the telescopic pipeline, that is, the axial opening distance and lateral opening distance of each group of hinge plates 9 in the deformation constraint mechanism 6 should meet the maximum axial and lateral displacement requirements of the flexible pipeline.

[0032] In this embodiment, the reinforcing tube 4 is configured as a metal outer braided mesh sleeve, and the reinforcing tube 4 is connected to the connecting tube 2 via a pressure ring 3 .

[0033] like Figure 6 , Figure 7 As shown, when the S-shaped compensating hose designed in the utility model is applied to a straight pipe section, pre-compression is achieved through lateral deflection during installation. The pre-compression amount is a preset seismic isolation displacement, realizing displacement functions in any direction including stretching and compression.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation, characterized in that: It comprises a telescopic pipe, both ends of which are provided with flanges (1) through a pipe (2), a reinforcement pipe (4) is provided on the outside of the telescopic pipe, and a deformation restraining mechanism (6) with a deformation function is symmetrically provided on the outside of the reinforcement pipe (4); The deformation constraint mechanism (6) comprises two groups of connected four-bar linkage mechanisms, the four-bar linkage mechanism is a quadrilateral structure, the four-bar linkage mechanism comprises four groups of hinge plates (9) connected end to end via a pin shaft (8), two adjacent groups of hinge plates (9) are rotationally connected via the pin shaft (8), and the axial opening movement distance and the lateral opening movement distance of the hinge plates (9) of each group in the four-bar linkage mechanism are not greater than the movement distance of the telescopic pipe; The reinforcing tube (4) is configured as a metal outer braided mesh sleeve, and the reinforcing tube (4) is connected to the connecting tube (2) via a pressure ring (3).

2. The S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation according to claim 1 is characterized in that: The telescopic pipe is configured as an S-shaped metal hose.

3. The S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation according to claim 2 is characterized in that: The metal hose is configured as a corrugated tube (5).

4. The S-shaped seismic isolation metal hose suitable for multi-directional large displacement compensation according to claim 3 is characterized in that: The middle part of the deformation restraining mechanism (6) is rotatably connected to the reinforcing tube (4) via a clamp (7), and both ends of the deformation restraining mechanism (6) are rotatably connected to the flange (1) via fixing rods.

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