Elliptical runway type expansion joint

Abstract

The utility model discloses an oval runway type expansion joint which comprises an expansion joint shell and external pipes, grooves are formed in the outer surface of the expansion joint shell, the external pipes are fixedly installed on the two sides of the outer wall of the expansion joint shell, and side face connecting discs are fixedly installed on one sides of the outer walls of the external pipes. And a connecting mechanism is fixedly mounted on one side of the inner wall of the side receiving disc. According to the elliptical runway type expansion joint, the expansion joint shell is arranged, and meanwhile, the groove is of a threaded structure, so that the deformation area of the expansion joint during expansion deformation can be increased, meanwhile, the deformation force during expansion extends to the right position from the left side, and the stability of the expansion joint during use can be achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of expansion joints, specifically to an elliptical racetrack-type expansion joint. Background Technology

[0002] Expansion joints, also commonly called compensators or expansion joints, consist of a bellows as the main working component and accessories such as end pipes, supports, flanges, and guide pipes. Expansion joints are flexible structures installed on container shells or pipelines to compensate for additional stress caused by temperature differences and mechanical vibrations. They utilize the effective expansion and contraction deformation of the bellows as the main working component to absorb dimensional changes in pipelines, guide pipes, and containers caused by thermal expansion and contraction, or to compensate for axial, lateral, and angular displacements. They can also be used for noise reduction and vibration damping. In heating systems, to prevent pipeline deformation or damage due to thermal expansion or temperature stress during heating, compensators are installed to compensate for thermal expansion, thereby reducing stress on the pipe walls and the forces acting on valves or support structures. Current expansion joints have short service lives and uneven stress distribution; therefore, we propose the elliptical racetrack type expansion joint.

[0003] The expansion joints currently in use suffer from uneven stress in different directions during expansion and deformation, which can easily lead to cracking. Furthermore, the deformation can cause deformation in one direction, thus affecting the normal use of the expansion joint. Utility Model Content

[0004] The purpose of this invention is to provide an elliptical racetrack-type expansion joint to solve the problems mentioned in the background art, where the expansion joints currently in use suffer from uneven stress in various directions during expansion and deformation, leading to cracking and deformation in one direction, thus affecting the normal use of the expansion joint.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an elliptical racetrack-type expansion joint, comprising an expansion joint shell and an outer connecting pipe. The outer surface of the expansion joint shell is provided with a slot. The outer connecting pipes are all fixedly installed on both sides of the outer wall of the expansion joint shell. A side receiving plate is fixedly installed on one side of the outer wall of the outer connecting pipe, and a connecting mechanism is fixedly installed on one side of the inner wall of the side receiving plate.

[0006] Preferably, the expansion joint outer shell is configured with an elliptical structure.

[0007] Preferably, the slot is a threaded structure.

[0008] Preferably, the connecting mechanism includes a first side connecting block, a limiting tube, a threaded groove, and a threaded rod. The first side connecting block is disposed on the outer wall of the side receiving plate. The limiting tube is movably connected to one side of the outer surface of the first side connecting block. Threaded grooves are provided on both the upper and lower surfaces of the inner wall of the side receiving plate. A threaded rod of matching size is provided on the inner wall of the threaded groove.

[0009] Preferably, the cross-section of the side plate matches the cross-section of the first side connecting block.

[0010] Preferably, the threaded rod is threadedly connected to the side receiving plate through a threaded groove, and the outer wall of the threaded rod is tightly fitted with the inner wall of the threaded groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This elliptical racetrack-type expansion joint, by setting an expansion joint shell and opening a groove with a threaded structure, can enhance the deformation area of ​​the expansion joint during expansion deformation. At the same time, the deformation force during expansion extends from the left to the right, thus achieving the stability of the expansion joint during use.

[0013] 2. This elliptical racetrack-type expansion joint, through the setting of a connecting mechanism, can limit the expansion of the expansion joint during expansion deformation, and at the same time increase the contact area during connection, thereby enhancing the stability of the connection. Attached Figure Description

[0014] Figure 1 This is a front view of the present utility model;

[0015] Figure 2 This is a side view of the expansion joint housing of this utility model;

[0016] Figure 3 This is a diagram of the connection mechanism of this utility model.

[0017] In the figure: 1. Expansion joint shell; 2. Groove; 3. Outer pipe; 4. Side connecting plate; 5. Connecting mechanism; 501. First side connecting block; 502. Limiting tube; 503. Threaded groove; 504. Threaded rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: an elliptical racetrack-type expansion joint, including an expansion joint shell 1 and an outer pipe 3. The outer surface of the expansion joint shell 1 is provided with a slot 2. The expansion joint shell 1 is elliptical in shape. When the expansion joint is connected and used, it can enhance its deformation degree. At the same time, when it expands and deforms, it can extend the pressure in all directions, thereby achieving uniform force distribution. The slot 2 is threaded. When the expansion joint shell 1 is connected, the deformation will extend from the left to the right, thereby enhancing the strength of the expansion joint during use.

[0020] The outer pipes 3 are all fixedly installed on both sides of the outer wall of the expansion joint housing 1. A side receiving plate 4 is fixedly installed on one side of the outer wall of the outer pipe 3, and a connecting mechanism 5 is fixedly installed on one side of the inner wall of the side receiving plate 4. The connecting mechanism 5 includes a first side connecting block 501, a limiting tube 502, a threaded groove 503, and a threaded rod 504. The first side connecting block 501 is set on the outer wall of the side receiving plate 4, and the limiting tube 502 is movably connected to one side of the outer surface of the first side connecting block 501. Threaded grooves 503 are opened on both the upper and lower sides of the inner wall of the side receiving plate 4, and threaded rods of matching size are provided on the inner wall of the threaded grooves 503. 504. The cross-section of the side receiving plate 4 matches the cross-section of the first side connecting block 501, which enhances the contact area with one side of the expansion joint, thus ensuring a stable connection during connection. The threaded rod 504 is threadedly connected to the side receiving plate 4 through the threaded groove 503, and the outer wall of the threaded rod 504 is tightly fitted with the inner wall of the threaded groove 503. This fixes the position of the side receiving plate 4 and the first side connecting block 501, allowing the first side connecting block 501 to move within the inner wall of the limiting tube 502 during expansion and deformation.

[0021] Working principle: First, place the device in the designated position. The expansion joint shell 1 has an elliptical structure, which enhances the deformation degree of the expansion joint when it is connected. At the same time, the slot 2 is designed with a threaded structure, so that when connected, the deformation will extend from the left to the right of the expansion joint shell 1, thereby enhancing the strength of the expansion joint during use. When connecting expansion joints, the first side connecting block 501 is aligned with the outer wall of the side receiving plate 4. The threaded rod 504 is rotated to fix it in the inner wall of the threaded groove 503, and it also penetrates the inner wall of the side receiving plate 4. This can stably connect the expansion joints and increase the contact area during connection. At the same time, when expanding and deforming, the first side connecting block 501 moves in the inner wall of the limiting tube 502, which can limit the position of expansion deformation. This completes the operation process of the elliptical racetrack expansion joint.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An elliptical racetrack-type expansion joint, characterized in that, It includes an expansion joint housing (1) and an outer pipe (3). The outer surface of the expansion joint housing (1) is provided with a slot (2). The outer pipe (3) is fixedly installed on both sides of the outer wall of the expansion joint housing (1). A side receiving plate (4) is fixedly installed on one side of the outer wall of the outer pipe (3). A connecting mechanism (5) is fixedly installed on one side of the inner wall of the side receiving plate (4).

2. The elliptical racetrack-type expansion joint according to claim 1, characterized in that: The expansion joint outer shell (1) is configured with an elliptical structure.

3. The elliptical racetrack-type expansion joint according to claim 1, characterized in that: The slot (2) is a threaded structure.

4. The elliptical racetrack-type expansion joint according to claim 1, characterized in that: The connecting mechanism (5) includes a first side connecting block (501), a limiting tube (502), a threaded groove (503), and a threaded rod (504). The first side connecting block (501) is disposed on the outer wall of the side receiving plate (4). The limiting tube (502) is movably connected to one side of the outer surface of the first side connecting block (501). The inner wall of the side receiving plate (4) is provided with threaded grooves (503) on both the upper and lower sides. The inner wall of the threaded groove (503) is provided with a threaded rod (504) of matching size.

5. The elliptical racetrack-type expansion joint according to claim 4, characterized in that: The cross-section of the side plate (4) matches the cross-section of the first side connecting block (501).

6. The elliptical racetrack-type expansion joint according to claim 4, characterized in that: The threaded rod (504) is threadedly connected to the side receiving plate (4) through the threaded groove (503), and the outer wall of the threaded rod (504) is tightly fitted with the inner wall of the threaded groove (503).

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