Pipeline flexible connecting device with deformation damping function

Abstract

The utility model relates to the technical field of building shock insulation, in particular to a pipeline flexible connecting device with a deformation shock absorption function, which comprises two pipelines arranged at an interval and connecting components respectively arranged at one ends of the two pipelines, the rubber corrugated pipe is arranged between the two connecting assemblies, the rigid sleeves are arranged at the wave troughs of the rubber corrugated pipe in a sleeving mode, the rigid sleeves located at the ends are provided with fixing rings, the elastic recovery mechanisms are connected between the two adjacent rigid sleeves, the fixing rings are connected with one sides of the connecting assemblies, and the elastic recovery mechanisms are connected with the other sides of the connecting assemblies. The fixing ring is connected to the outer wall of the rubber corrugated pipe in a sleeving mode. Therefore, the device has the advantages of being high in flexibility and compensation capacity, displacement difference can be reduced, the problems that the pipeline is snapped, cracked, bent, twisted and the like are solved, and the engineering problem that the pipeline is not damaged after an earthquake is finished is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building seismic isolation, in particular to a flexible pipe connection device with deformation and shock absorption functions. Background Technique

[0002] At present, for buildings with high seismic requirements in China, seismic isolation bearings are designed at the base of the buildings, which greatly reduces the damage of earthquakes to the building structure. Through a large number of investigations, it is found that for buildings with seismic isolation bearings designed, the damage of earthquakes to the building structure is very small, but the pipes at the corresponding parts of the connection layer of the seismic isolation bearings are severely damaged. After the earthquake, rework and reinstallation are required. After the earthquake in buildings without seismic isolation bearings designed, the damage of earthquakes to the building structure is relatively large, while the damage to the pipes is relatively small.

[0003] At present, the flexible connection joints on the domestic and foreign markets mainly include metal hoses with a certain length, metal corrugated expansion joints, and spherical rubber pipe expansion joints. The metal hose uses the bending deformation of the hose to achieve pipe expansion and contraction. Due to the large curvature of the pipe, it is not conducive to drainage. The contraction and deformation capabilities of the metal expansion joint and the spherical rubber pipe expansion joint are relatively small, mainly to solve the problem of thermal expansion and contraction of pipes caused by temperature changes, and are not suitable for the problems that the pipes are easily pulled apart, cracked, bent, and twisted due to the large instantaneous contraction of the pipes under the action of seismic forces. Content of the Utility Model

[0004] The purpose of the utility model is to provide a flexible pipe connection device with deformation and shock absorption functions, which is used to solve the disadvantages of the existing flexible sleeves, such as small deformation ability and weak impact resistance, especially the problem that it is easily damaged (such as pulled apart, cracked, bent, and twisted) when the displacement difference at both ends of the pipe is large under the action of an earthquake.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A flexible pipe connection device with deformation and shock absorption functions, including two pipes arranged at intervals, connection components respectively arranged at one end of the two pipes, and further including a rubber bellows arranged between the two connection components, a rigid sleeve sleeved at the trough of the rubber bellows, a fixing ring arranged at the end of the rigid sleeve, and an elastic recovery mechanism connected between two adjacent rigid sleeves. The fixing ring is connected to one side of the connection component and is sleeved on the outer wall of the rubber bellows.

[0006] Further, the elastic recovery mechanism includes connection rings respectively connected to one end of two adjacent rigid sleeves, a pull rod penetrating through the two connection rings, limit blocks respectively connected to both ends of the pull rod, two springs sleeved on the outer wall of the pull rod, and both ends of the springs are respectively connected between the limit block and the connection ring.

[0007] Further, both sides of the rigid sleeve have arc-shaped protrusions, and the arc-shaped protrusions between two adjacent rigid sleeves are used to accommodate the wave crests of the rubber corrugated pipe, and there is a gap between the inner wall of the arc-shaped protrusion and the rubber corrugated pipe.

[0008] Further, the connection assembly includes two flanges and a plurality of bolts arranged in an annular array on the two flanges. One flange is connected to one end of the pipe, and the other flange is connected to one end of the rubber corrugated pipe. One side of the fixing ring is connected to the flange.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] In practical applications, the present utility model integrates a rubber corrugated pipe, a rigid sleeve sleeved at its wave trough position, a fixing ring and an elastic recovery mechanism to form a flexible pipe connection device. This device allows the rubber corrugated pipe to freely expand and contract under the action of axial thrust and tension. When the rubber corrugated pipe is in a freely extended state, the elastic recovery mechanism acts synergistically, not only effectively assisting the rapid reset of the rubber corrugated pipe, but also prompting multiple rigid sleeves to cooperate closely. Furthermore, this device has the advantages of strong telescopic performance and large compensation capacity, can reduce the displacement difference, solve problems such as the pipe being pulled apart, cracked, bent, twisted, etc., and solve the engineering problem of preventing the pipe from being damaged after an earthquake. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic cross-sectional view of the flexible pipe connection device with deformation and shock absorption function of the present utility model;

[0012] Figure 2 is of the present utility model Figure 1 enlarged schematic view at A in.

[0013] In the figure: 1, connection assembly; 2, flange; 3, pipe; 4, rubber corrugated pipe; 5, rigid sleeve;

[0014] 6, connection ring; 7, pull rod; 8, limit block; 9, spring; 10, fixing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Please refer to Figure 1-2, A pipeline flexible connection device with deformation shock absorption function, including two pipelines 3 arranged at intervals, connection components 1 respectively arranged at one end of the two pipelines 3, and also including a rubber bellows 4 arranged between the two connection components 1, a rigid sleeve 5 sleeved at the trough of the rubber bellows 4, a fixing ring 10 arranged at the end of the rigid sleeve 5, and an elastic recovery mechanism connected between two adjacent rigid sleeves 5. The fixing ring 10 is connected to one side of the connection component 1 and is sleeved on the outer wall of the rubber bellows 4; the rubber bellows 4 (composed of a continuous plurality of corrugations in a section), under the action of axial thrust (tension), the rubber bellows 4 can freely expand and contract. The rubber bellows 4 is processed by rubber, and the rubber has the characteristics of strong expansion and contraction elasticity and excellent durability. The outer shape of the rubber bellows 4 is designed as a wavy shape, and the wavy shape also has the advantage of strong expansion and contraction elasticity. The rigid sleeve 5 (composed of a continuous plurality of rigid sleeves 5 in a section), and an elastic recovery mechanism is connected between two adjacent rigid sleeves 5. When the rubber bellows 4 expands freely, the elastic recovery mechanism is stretched accordingly. When the rubber bellows 4 contracts under the action of axial tension, the elastic recovery mechanism further drives the rubber bellows 4 to contract rapidly, and makes a plurality of rigid sleeves 5 form a whole, and is connected by the fixing ring 10 and the connection components 1 at both ends of the rubber bellows 4. Through the plurality of rigid sleeves 5, the device has the function of restricting the lateral deformation and flatness of the rubber bellows 4, and has the function of rapidly driving the rubber bellows 4 to contract through the elastic recovery mechanism; furthermore, the device has the advantages of strong expansion and contraction performance and large compensation capacity, can reduce the displacement difference, solve problems such as the pipeline 3 being pulled off, cracked, bent, twisted, etc., and solve the engineering problem that the pipeline 3 is not damaged after the earthquake ends.

[0016] The elastic recovery mechanism includes connection rings 6 respectively connected to one end of two adjacent rigid sleeves 5, a pull rod 7 penetrating and connected between the two connection rings 6, limit blocks 8 respectively connected to both ends of the pull rod 7, two springs 9 sleeved on the outer wall of the pull rod 7, and both ends of the springs 9 are respectively connected between the limit blocks 8 and the connection rings 6; through holes for the pull rod 7 to pass through are formed through the connection rings 6; when the rubber bellows 4 expands freely, two adjacent rigid sleeves 5 move away from each other, the two connection rings 6 squeeze the springs 9, the springs 9 contract, and the limit blocks 8 prevent the pull rod 7 from detaching from the connection rings 6. When the rubber bellows 4 contracts under the action of axial tension, due to the elastic performance of the springs 9 themselves, the springs 9 expand, driving two adjacent connection rings 6 to approach, and the pull rod 7 plays a role in restricting the lateral movement of the two connection rings 6.

[0017] Both sides of the rigid sleeve 5 have arc-shaped protrusions, and the arc-shaped protrusions between two adjacent rigid sleeves 5 are used to accommodate the wave peaks of the rubber bellows 4. There is a gap between the inner wall of the arc-shaped protrusions and the rubber bellows 4, so that the wave peaks of the rubber bellows 4 can be accommodated and it is convenient for the wave peaks of the rubber bellows 4 to realize the expansion and contraction function within the arc-shaped protrusions.

[0018] The connecting component 1 includes two flanges 2 and a plurality of bolts arranged in a circular array on the two flanges 2. One flange 2 is connected to one end of the pipeline 3, and the other flange 2 is connected to one end of the rubber bellows 4. One side of the fixing ring 10 is connected to the flange 2. Through the cooperation of the two flanges 2 and the plurality of bolts, it is convenient to connect the device to the pipeline 3.

[0019] Working principle: For the rubber bellows 4, under the action of axial thrust (tension), the rubber bellows 4 can freely expand and contract. The outer shape of the rubber bellows 4 is designed as a wavy shape, which also has the advantage of strong expansion and contraction elasticity. There is a rigid sleeve 5, and an elastic recovery mechanism is connected between two adjacent rigid sleeves 5. When the rubber bellows 4 expands freely, two adjacent rigid sleeves 5 move away from each other, two connecting rings 6 squeeze the spring 9, and the spring 9 contracts. The limit block 8 prevents the pull rod 7 from detaching from the connecting ring 6. When the rubber bellows 4 contracts under the action of axial tension, through the elastic performance of the spring 9 itself, the spring 9 expands, driving two adjacent connecting rings 6 to approach each other. The pull rod 7 plays a role in restricting the lateral movement of the two connecting rings 6 and making a plurality of rigid sleeves 5 form a whole. And the fixing ring 10 is connected to the connecting component 1 at both ends of the rubber bellows 4. Through the plurality of rigid sleeves 5, the device has the functions of restricting the lateral deformation of the rubber bellows 4 and the straightness of the rubber bellows 4, and has the function of quickly driving the rubber bellows 4 to contract through the elastic recovery mechanism. Furthermore, the device has the advantages of strong expansion and contraction performance and large compensation capacity, can reduce the displacement difference, solve problems such as the pipeline 3 being pulled apart, cracked, bent, and twisted, and solve the engineering problem of preventing the pipeline 3 from being damaged after an earthquake.

[0020] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flexible pipe connection device with deformation shock absorption function, comprising two pipes (3) arranged at intervals, and connection components (1) respectively arranged at one end of the two pipes (3), characterized in that, It also includes a rubber bellows (4) provided between two connecting components (1), a rigid sleeve (5) sleeved at the trough of the rubber bellows (4), a fixing ring (10) provided at the end of the rigid sleeve (5), and an elastic recovery mechanism connected between two adjacent rigid sleeves (5). The fixing ring (10) is connected to one side of the connecting component (1), and the fixing ring (10) is sleeved on the outer wall of the rubber bellows (4).

2. A pipeline flexible connection device with a deformation shock absorption function according to claim 1, characterized in that, The elastic recovery mechanism includes connecting rings (6) respectively connected to one ends of two adjacent rigid sleeves (5), a pull rod (7) penetrating and connecting the two connecting rings (6), limit blocks (8) respectively connected to both ends of the pull rod (7), two springs (9) sleeved on the outer wall of the pull rod (7), and both ends of the springs (9) are respectively connected between the limit blocks (8) and the connecting rings (6).

3. A flexible pipe connection device with a deformation damping function as described in claim 1, characterized in that, Both sides of the rigid sleeve (5) have arc-shaped protrusions, and the arc-shaped protrusions between two adjacent rigid sleeves (5) are used to accommodate the wave crests of the rubber bellows (4), and there is a gap between the inner wall of the arc-shaped protrusion and the rubber bellows (4).

4. The flexible pipe connection device with deformation shock absorption function according to claim 1, characterized in that, The connecting component (1) includes two flanges (2) and a plurality of bolts arranged in a circular array on the two flanges (2). One of the flanges (2) is connected to one end of the pipeline (3), and the other flange (2) is connected to one end of the rubber bellows (4). One side of the fixing ring (10) is connected to the flange (2).

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