High-bearing-capacity bellow expansion joint

Abstract

The utility model relates to the technical field of bellow expansion joints, and discloses a high-bearing-capacity bellow expansion joint which comprises an expansion joint body, a supporting ring is arranged on the cambered surface of the expansion joint body, and a straight rod is arranged on the outer side of the expansion joint body. According to the high-bearing-capacity bellow expansion joint, the two sides of the expansion joint body can be arranged in the centers of two flange plates at the pipeline connecting position, the expansion joint body drives the short rods and the long rods on the hinge rods to stretch towards the two sides under the axial stretching force, the stretching force at the two ends of the expansion joint body is the same, and it is guaranteed that the two ends of the expansion joint body are evenly stretched; meanwhile, a short rod and a long rod rotate on the cambered surface of a fixing rod, a mounting plate rotates and deviates in the long rod, deformation of a bending spring buffers deviation of the mounting plate, meanwhile, a round block rotates on the surface of a supporting block, the influence of radial force borne by an expansion joint body on the hinged position of a hinged rod is reduced, and a hinged rod assembly is stable; and the possibility of assembly loosening is reduced.

Description

Technical Field

[0001] This utility model relates to the field of corrugated expansion joint technology, specifically a high-load-bearing corrugated expansion joint. Background Technology

[0002] Expansion joints, also commonly known as compensators or expansion joints, consist of bellows and end pipes, supports, flanges, conduits, and other accessories that form their main working body. Expansion joints are flexible structures installed on container shells or pipelines to compensate for additional stress caused by temperature differences and mechanical vibrations. As an elastic compensating element that can freely expand and contract, expansion joints have advantages such as reliable operation, good performance, and compact structure.

[0003] According to a published application for a corrugated expansion joint (publication number: CN220060999U), the aforementioned application involves inserting a plate into a slot on a flange, causing the clamping plate to be tightly pressed against the side of the flange near the corrugated expansion joint under the action of a spring, thereby fixing the equipment. At the same time, tightening the first screw increases the tightness between the clamping plate and the flange, thus making the plate and clamping plate firmly clamped on the flange, facilitating the assembly, disassembly, and fixing of the equipment, and making it convenient to use.

[0004] However, in actual use, the above-mentioned equipment results in uneven tension at both ends of the axial force caused by mechanical vibration of the pipeline. The radial force of the corrugated expansion joint will affect the device of the components at both ends of the axial force, leading to loosening of the components and uneven tension of the axial force. In view of this, we propose a high load-bearing capacity corrugated expansion joint. Utility Model Content

[0005] The purpose of this invention is to provide a high-load-bearing corrugated expansion joint to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-load-bearing corrugated expansion joint, comprising an expansion joint body, a support ring provided on the arc surface of the expansion joint body, a straight rod provided on the outer side of the expansion joint body, a reinforcing mechanism provided on the outer side of the expansion joint body, and a stabilizing mechanism provided on the outer side of the expansion joint body, wherein the reinforcing mechanism includes:

[0007] A support component is fixedly installed on the surface of the expansion joint body. A support block is fixedly installed on the arc surface of the support component. A fixing rod is fixedly installed on the surface of the support block. A long rod is rotatably connected to the arc surface of the fixing rod. A bending spring is fixedly connected to the inner wall of the long rod.

[0008] A movable block has a side wall fixedly connected to the end of a bending spring away from the inner wall of a long rod. A mounting plate is fixedly mounted on the surface of the movable block. A hinge rod is hinged to the surface of the mounting plate. A circular block is hinged to the end of the hinge rod away from the mounting plate. A short rod is rotatably connected to the arc surface of the fixed rod.

[0009] Preferably, the stabilizing mechanism includes a bending rod, which is fixedly installed on the inner wall of the support block. A strong spring is fixedly connected to the inner wall of the support block. A slider is fixedly connected to the end of the strong spring away from the inner wall of the support block. A reset spring is fixedly connected to the inner wall of the support ring. An elastic sleeve is fixedly installed on the arc surface of the straight rod.

[0010] Preferably, the surface of the support block is provided with a rotating groove, the shape of which is adapted to the shape of the circular block, and the circular block is rotatably mounted on the inner wall of the rotating groove via a fixed shaft.

[0011] Preferably, the inner wall of the rotating groove is provided with a sliding groove, the shape of which is adapted to the shape of the curved rod, and the slider is fixedly installed on the surface of the circular block.

[0012] Preferably, the mounting plate has two hinge rods hinged to its surface, one of which is hinged to the surface of the circular block, and the other is hinged to the arc surface of the support ring.

[0013] Preferably, the surface of the support ring is provided with a sliding groove, the diameter of which is adapted to the diameter of the elastic sleeve.

[0014] Compared with the prior art, this utility model provides a high load-bearing capacity corrugated expansion joint, which has the following beneficial effects:

[0015] 1. This high-load-bearing corrugated expansion joint features a reinforcing mechanism. The expansion joint body can be positioned at the center of two flanges at the pipe connection. The axial tensile force on the expansion joint body causes the short and long rods on the hinge rod to stretch to both sides, ensuring equal tensile force at both ends of the expansion joint body and uniform stretching. Simultaneously, the short and long rods rotate on the arc surface of the fixed rod, causing the mounting plate to rotate and shift inside the long rod. The bending spring deformation buffers the offset of the mounting plate. Meanwhile, the circular block rotates on the surface of the support block, reducing the radial force on the hinge joint of the expansion joint body and stabilizing the hinge rod assembly. This enhances the load-bearing capacity of the expansion joint body in different directions and reduces the possibility of loosening.

[0016] 2. This high-load-bearing corrugated expansion joint, through the setting of a stabilizing mechanism, allows the circular block to rotate on the support block, causing the slider to slide on the bending rod. The deformation of the powerful spring generates a reverse pulling effect on the rotation of the circular block, further buffering the rotation of the circular block and enhancing the radial force resistance of the corrugated expansion joint components. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 This is a partial structural diagram of the long rod of this utility model;

[0019] Figure 3 This is a partial exploded view of the mounting plate of this utility model;

[0020] Figure 4 This is an exploded view of a partial cross-sectional structure of the support block of this utility model;

[0021] Figure 5 This is a partial structural diagram of the straight rod of this utility model.

[0022] In the diagram: 1. Expansion joint body; 2. Support ring; 3. Reinforcing mechanism; 301. Support component; 302. Support block; 303. Fixed rod; 304. Long rod; 305. Hinge rod; 306. Mounting plate; 307. Movable block; 308. Bending spring; 309. Round block; 310. Short rod; 4. Stabilizing mechanism; 401. Slider; 402. Bending rod; 403. Strong spring; 404. Elastic sleeve; 405. Return spring; 5. Straight rod. Detailed Implementation

[0023] like Figures 1-5 As shown, this utility model provides a technical solution: a high load-bearing corrugated expansion joint, including an expansion joint body 1, a support ring 2 provided on the arc surface of the expansion joint body 1, a straight rod 5 provided on the outer side of the expansion joint body 1, a reinforcing mechanism 3 provided on the outer side of the expansion joint body 1, and a stabilizing mechanism 4 provided on the outer side of the expansion joint body 1. The reinforcing mechanism 3 includes a support member 301, a support block 302, a fixing rod 303, a long rod 304, a hinge rod 305, a mounting plate 306, a movable block 307, a bending spring 308, a round block 309, and a short rod 310.

[0024] In one embodiment of this utility model, a support member 301 is fixedly installed on the surface of the expansion joint body 1, a support block 302 is fixedly installed on the arc surface of the support member 301, a fixing rod 303 is fixedly installed on the surface of the support block 302, a long rod 304 is rotatably connected to the arc surface of the fixing rod 303, a bending spring 308 is fixedly connected to the inner wall of the long rod 304, a side wall of the movable block 307 is fixedly connected to the end of the bending spring 308 away from the inner wall of the long rod 304, an mounting plate 306 is fixedly installed on the surface of the movable block 307, a hinge rod 305 is hinged to the surface of the mounting plate 306, a round block 309 is hinged to the end of the hinge rod 305 away from the mounting plate 306, and a short rod 310 is rotatably connected to the arc surface of the fixing rod 303.

[0025] Additionally, the stabilizing mechanism 4 includes a bending rod 402, which is fixedly installed on the inner wall of the support block 302. A strong spring 403 is fixedly connected to the inner wall of the support block 302. A slider 401 is fixedly connected to the end of the strong spring 403 away from the inner wall of the support block 302. A return spring 405 is fixedly connected to the inner wall of the support ring 2. An elastic sleeve 404 is fixedly installed on the arc surface of the straight rod 5. A rotating groove is formed on the surface of the support block 302, and the shape of the rotating groove matches the shape of the circular block 309. The circular block 309 is rotatably installed on the inner wall of the rotating groove via a fixed shaft. A sliding groove is formed on the inner wall of the rotating groove, and the shape of the sliding groove matches the shape of the bending rod 402. The slider 401 is fixedly installed on the surface of the circular block 309. Two strong springs 403 are provided, mirror-distributed on the two end side walls of the slider 401. The slider 401 and the strong springs 403 are sleeved on the arc surface of the bending rod 402, allowing the slider 401 to rotate on the arc surface of the bending rod 402.

[0026] In this embodiment of the utility model, the long rod 304 and the short rod 310 are sleeved on the surface of the fixed rod 303, and the long rod 304 and the short rod 310 can rotate on the fixed rod 303. Two hinge rods 305 are hinged to the surface of the mounting plate 306. One hinge rod 305 is hinged to the surface of the circular block 309, and the other hinge rod 305 is hinged to the arc surface of the support ring 2. A sliding groove is provided on the surface of the support ring 2, and the diameter of the sliding groove matches the diameter of the elastic sleeve 404. The two sides of the collision contact body are mirror-image arranged with corresponding components of the reinforcing mechanism 3 and the stabilizing mechanism 4 to ensure the stability of the components. Qualitatively, the mounting plate 306 of the short rod 310 is thicker than the mounting plate 306 of the long rod 304, so that the moving distance of the hinge rods 305 at both ends is the same. The surface of the long rod 304 is provided with a through groove, the length of which is adapted to the length of the movable block 307 to ensure the axial movement of the hinge rod 305. The width of the movable block 307 is smaller than the width of the through groove, and the two ends of the movable block 307 are arc-shaped, so that the movable block 307 can be offset. The number of bending springs 308 is set such that several bending springs 308 are evenly distributed around the movable block 307 to facilitate the directional pulling of the offset of the movable block 307.

[0027] In this utility model, during use, the expansion joint body 1 is positioned at the center of two flanges at the pipe connection. The expansion joint body 1 is subjected to axial tensile force, which drives the short rod 310 and long rod 304 on the hinge rod 305 to stretch to both sides, making the tensile force at both ends of the expansion joint body 1 the same and ensuring uniform stretching at both ends. At the same time, the short rod 310 and long rod 304 rotate on the arc surface of the fixed rod 303, and the mounting plate 306 rotates inside the long rod 304. The deformation of the bending spring 308 buffers the offset of the mounting plate 306. Meanwhile, the round block 309 rotates on the surface of the support block 302, reducing the impact of radial force on the hinge joint 305 on the hinge point of the hinge rod 305, stabilizing the corresponding components of the hinge rod 305, and reducing the possibility of loosening of the components. The hinge rod 305 is stretched to both sides, and the support ring 2 is pulled by the straight rod 5 and the return spring 405 until the support ring 2 abuts against the surface of the flange to ensure the stability of the components and enhance the load-bearing capacity of the expansion joint body in different directions.

[0028] Furthermore, the circular block 309 can rotate on the support block 302, causing the slider 401 to slide on the curved rod 402. The powerful spring 403 deforms, generating a reverse pulling effect on the rotation of the circular block 309, further buffering the rotation of the circular block 309 and strengthening the radial force resistance of the expansion joint body 1.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A high-load-bearing corrugated expansion joint, comprising an expansion joint body (1), wherein a support ring (2) is provided on the arc surface of the expansion joint body (1), and a straight rod (5) is provided on the outer side of the expansion joint body (1), characterized in that: A reinforcing mechanism (3) is provided on the outer side of the expansion joint body (1), and a stabilizing mechanism (4) is provided on the outer side of the expansion joint body (1). The reinforcing mechanism (3) includes: A support member (301) is fixedly installed on the surface of the expansion joint body (1). A support block (302) is fixedly installed on the arc surface of the support member (301). A fixing rod (303) is fixedly installed on the surface of the support block (302). A long rod (304) is rotatably connected to the arc surface of the fixing rod (303). A bending spring (308) is fixedly connected to the inner wall of the long rod (304). The movable block (307) has a side wall fixedly connected to one end of a bending spring (308) away from the inner wall of a long rod (304). The surface of the movable block (307) is fixedly mounted with an mounting plate (306). The surface of the mounting plate (306) is hinged with a hinge rod (305). One end of the hinge rod (305) away from the mounting plate (306) is hinged to a round block (309). The arc surface of the fixed rod (303) is rotatably connected to a short rod (310).

2. The high-load-bearing corrugated expansion joint according to claim 1, characterized in that: The stabilizing mechanism (4) includes a bending rod (402), which is fixedly installed on the inner wall of the support block (302). A strong spring (403) is fixedly connected to the inner wall of the support block (302). A slider (401) is fixedly connected to one end of the strong spring (403) away from the inner wall of the support block (302). A reset spring (405) is fixedly connected to the inner wall of the support ring (2). An elastic sleeve (404) is fixedly installed on the arc surface of the straight rod (5).

3. The high-load-bearing corrugated expansion joint according to claim 2, characterized in that: The surface of the support block (302) is provided with a rotating groove, the shape of which is adapted to the shape of the round block (309), and the round block (309) is rotatably mounted on the inner wall of the rotating groove via a fixed shaft.

4. A high-load-bearing corrugated expansion joint according to claim 3, characterized in that: The inner wall of the rotating groove is provided with a sliding groove, the shape of which is adapted to the shape of the curved rod (402), and the slider (401) is fixedly installed on the surface of the round block (309).

5. A high-load-bearing corrugated expansion joint according to claim 1, characterized in that: The mounting plate (306) has two hinge rods (305) hinged to its surface. One of the hinge rods (305) is hinged to the surface of the circular block (309), and the other hinge rod (305) is hinged to the arc surface of the support ring (2).

6. A high-load-bearing corrugated expansion joint according to claim 2, characterized in that: The surface of the support ring (2) is provided with a sliding groove, the diameter of which is adapted to the diameter of the elastic sleeve (404).

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