Rubber expansion joint capable of preventing axial deformation

Abstract

The utility model relates to the technical field of expansion joints, and discloses a rubber expansion joint capable of preventing axial deformation, which comprises a flange plate body, a rubber expansion joint body is arranged inside the flange plate body, an axial deformation preventing mechanism is arranged outside the flange plate body, and an anti-falling mechanism is arranged on the outer side of the axial deformation preventing mechanism. According to the rubber expansion joint with the axial deformation prevention function, by means of the arranged anti-falling mechanism and transmission of a first gear and a second gear, three threaded screwing rods of the anti-falling mechanism can synchronously rotate and be inserted into a connecting sliding rod, a stopping disc is arranged outside the connecting sliding rod in a cushioned mode, and connection between the stopping disc and a mounting block is limited; according to the anti-axial-deformation rubber expansion joint, the rotating inserting block is locked through the inserting rod, and through cooperation of the two assemblies, the situation that the connecting sliding rod falls off when the rubber expansion joint body elastically buffers and rebounds is avoided, so that the anti-axial-deformation mechanism can normally prevent axial deformation, and the stability of the anti-axial-deformation structure is improved.

Description

Technical Field

[0001] This utility model relates to the field of expansion joint technology, specifically a rubber expansion joint with anti-axial deformation. Background Technology

[0002] Rubber expansion joints are hollow rubber products used for flexible connections between metal pipes. They consist of inner and outer rubber layers, a fabric layer, and a steel wire ring, forming a tubular rubber component. After vulcanization, they are combined with metal flanges or parallel joints. They are characterized by high temperature resistance, shock absorption, flexibility, and abrasion resistance. Their main functions are shock absorption and noise reduction.

[0003] According to the patent application CN216590528U, a rubber expansion joint with anti-axial deformation is disclosed, "This utility model discloses a rubber expansion joint with anti-axial deformation, including an expansion joint body. The expansion joint body includes a rubber tube, with flanges at both ends. A left-inverted Z-shaped fixing block and a right-inverted Z-shaped fixing block are respectively provided on both sides of the top and bottom of the two flanges. A connecting rod is provided between the two left-inverted Z-shaped fixing blocks and the two right-inverted Z-shaped fixing blocks at the top and bottom of the rubber tube. A left sleeve and a right sleeve are respectively provided at the two ends of one side of the two flanges at the two ends of the rubber tube. This utility model, a rubber expansion joint with anti-axial deformation, through the provided left and right inverted Z-shaped fixing blocks, the connecting rod between them, and the first buffer spring sleeved on the outside, ensures that the body can prevent axial deformation without losing its elastic buffering performance. This rubber expansion joint with anti-axial deformation has a novel structure and low cost."

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] During use, this utility model, through the left and right inverted Z-shaped fixing blocks, connecting rod, and first spring, enables the rubber expansion joint to have elastic buffering function while preventing axial deformation. The sleeves and buffer springs on the left and right sides can enhance the performance of preventing axial deformation and elastic buffering. However, in actual use, when the rubber expansion joint is buffering, the left and right inverted Z-shaped fixing blocks will slide outside the connecting rod, squeezing the first buffer spring. When the rubber expansion joint returns to its original shape, the left and right inverted Z-shaped fixing blocks will touch the nuts on both sides of the connecting rod, causing the nuts to loosen and change their original position. After repeated contact, there is a risk that the nuts will fall off, causing the rubber expansion joint to fail to prevent axial deformation properly. Therefore, it is necessary to improve the rubber expansion joint to prevent axial deformation and solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a rubber expansion joint that prevents axial deformation, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rubber expansion joint with anti-axial deformation, comprising a flange body, wherein a rubber expansion joint body is disposed inside the flange body, an anti-axial deformation mechanism is disposed outside the flange body, and an anti-detachment mechanism is disposed outside the anti-axial deformation mechanism.

[0008] The anti-fall-off mechanism includes a positioning and fixing component and a locking component, wherein the locking component is disposed outside the positioning and fixing component.

[0009] Preferably, the anti-axial deformation mechanism includes a mounting block, which is fixedly installed on the outside of the flange body. A connecting slide rod is provided inside the mounting block, and a spring is provided outside the connecting slide rod, so as to facilitate the anti-axial deformation of the rubber expansion joint body through the anti-axial deformation mechanism.

[0010] Preferably, the mounting block and the connecting slide rod are provided with holes at corresponding positions, and the connecting slide rod is slidably installed inside the holes provided inside the mounting block, so that the rubber expansion joint body can perform normal elastic buffering.

[0011] Preferably, the positioning and fixing assembly includes a threaded rod, which is threadedly installed inside the connecting slide rod. A baffle is slidably installed on the outside of the threaded rod. A rotating shaft is fixedly installed on the outside of the threaded rod. A gear is fixedly installed on the outside of the rotating shaft. A housing is rotatably installed on the outside of the rotating shaft. A rotating shaft is rotatably installed inside the housing. A rotating insert is fixedly installed on the outside of the rotating shaft. A gear is fixedly installed on the inside of the rotating shaft, which facilitates the limiting and fixing of the connecting slide rod by the anti-detachment mechanism.

[0012] Preferably, there are three gears, and the three gears mesh with gears, which facilitates normal connection and fixation with the connecting slide rod.

[0013] Preferably, the locking assembly includes a fixing plate, which is fixedly installed on the outside of the housing. A plug rod is slidably installed inside the fixing plate, and a spring is provided on the outside of the plug rod to facilitate locking the rotating plug block by the locking assembly.

[0014] Preferably, holes are provided at corresponding positions of the rotating insert and the insert rod, and the insert rod is slidably installed inside the holes provided inside the rotating insert, which facilitates limiting the position of the rotating insert.

[0015] Compared with the prior art, this utility model provides a rubber expansion joint with anti-axial deformation, which has the following beneficial effects:

[0016] 1. This rubber expansion joint with anti-axial deformation features an anti-detachment mechanism. During use, the transmission of gear one and gear two enables the three threaded rods of the anti-detachment mechanism to rotate synchronously and insert into the interior of the connecting slide rod. The baffle is placed on the outside of the connecting slide rod to limit its connection with the mounting block. The insert rod locks the rotating insert block. Through the cooperation of the two components, the connecting slide rod will not fall off when the rubber expansion joint body elastically rebounds, allowing the anti-axial deformation mechanism to function normally and improving the stability of the anti-axial deformation structure.

[0017] 2. This rubber expansion joint with anti-axial deformation mechanism, through the setting of the anti-axial deformation mechanism, can limit the axial movement of the rubber expansion joint body during use by setting the mounting block and the connecting slide rod, so as to prevent the deformation of the axis of the rubber expansion joint body. At the same time, the combination of the mounting block, the connecting slide rod and the spring can keep the rubber expansion joint body elastically buffered, thus realizing the function of preventing the axial deformation of the rubber expansion joint body. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure of the anti-axial deformation mechanism and the anti-detachment mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the external structure of the anti-fall-off mechanism of this utility model;

[0022] Figure 4 This is a cross-sectional view of the positioning and fixing component of this utility model.

[0023] Figure 5 This is a schematic diagram of the external structure of the locking component of this utility model;

[0024] Figure 6 This is an exploded view of the external structure of the anti-axial deformation mechanism of this utility model.

[0025] In the diagram: 1. Flange body; 2. Anti-axial deformation mechanism; 21. Mounting block; 22. Connecting slide rod; 23. Spring 1; 3. Anti-fall-off mechanism; 31. Positioning and fixing assembly; 311. Threaded rod; 312. Baffle; 313. Rotating shaft 1; 314. Gear 1; 315. Housing; 316. Rotating shaft 2; 317. Rotating insert block; 318. Gear 2; 32. Locking assembly; 321. Fixing plate; 322. Insert rod; 323. Spring 2; 4. Rubber expansion joint body. Detailed Implementation

[0026] 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.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example 1:

[0029] Please see Figure 1-5 This utility model provides a technical solution: a rubber expansion joint with anti-axial deformation, including a flange body 1, a rubber expansion joint body 4 disposed inside the flange body 1, an anti-axial deformation mechanism 2 disposed outside the flange body 1, and an anti-detachment mechanism 3 disposed outside the anti-axial deformation mechanism 2.

[0030] The anti-fall-off mechanism 3 includes a positioning and fixing component 31 and a locking component 32, with the locking component 32 disposed outside the positioning and fixing component 31.

[0031] Furthermore, the positioning and fixing assembly 31 includes a threaded rod 311, which is threadedly installed inside the connecting slide rod 22. A baffle 312 is slidably installed on the outside of the threaded rod 311. A rotating shaft 313 is fixedly installed on the outside of the threaded rod 311. A gear 314 is fixedly installed on the outside of the rotating shaft 313. A housing 315 is rotatably installed on the outside of the rotating shaft 313. A rotating shaft 316 is rotatably installed inside the housing 315. A rotating insert 317 is fixedly installed on the outside of the rotating shaft 316. A gear 318 is fixedly installed on the inside of the rotating shaft 316, which facilitates the limiting and fixing of the connecting slide rod 22 by the anti-detachment mechanism 3.

[0032] Furthermore, there are three gears 314, and the three gears 314 mesh with gears 318, which facilitates normal connection and fixation with the connecting slide rod 22.

[0033] Furthermore, the locking assembly 32 includes a fixing plate 321, which is fixedly installed on the outside of the housing 315. A plug rod 322 is slidably installed inside the fixing plate 321, and a spring 323 is provided on the outside of the plug rod 322 to facilitate locking the rotating plug block 317 by the locking assembly 32.

[0034] Furthermore, holes are provided at corresponding positions of the rotating insert 317 and the insert rod 322, and the insert rod 322 is slidably installed inside the hole provided inside the rotating insert 317, which facilitates limiting the rotation of the rotating insert 317.

[0035] Example 2:

[0036] Please see Figure 6 Furthermore, in conjunction with Embodiment 1, it is further found that the anti-axial deformation mechanism 2 includes a mounting block 21, which is fixedly installed on the outside of the flange body 1. A connecting slide rod 22 is provided inside the mounting block 21, and a spring 23 is provided on the outside of the connecting slide rod 22, so as to facilitate the anti-axial deformation of the rubber expansion joint body 4 through the anti-axial deformation mechanism 2.

[0037] Furthermore, holes are provided at corresponding positions of the mounting block 21 and the connecting slide rod 22, and the connecting slide rod 22 is slidably installed inside the holes provided inside the mounting block 21, so that the rubber expansion joint body 4 can perform elastic buffering normally.

[0038] In actual operation, when this device is used and the anti-axial deformation structure needs to be installed, spring 23 is placed on the outside of the connecting slide rod 22, and the connecting slide rod 22 is passed through the inside of the mounting block 21. At this time, the threaded rod 311 is aligned with the threaded hole inside the connecting slide rod 22. After the baffle 312 is placed on the outside of the threaded rod 311, the rotating insert block 317 is rotated, which drives the gear 2 318 to rotate. At this time, the gear 2 318 drives the gear 1 314 to rotate, so that the three threaded rods 311 rotate synchronously and enter the inside of the connecting slide rod 22. At this time, the baffle 312 is pressed against the outside of the mounting block 21, so that the outside of the connecting slide rod 22 is limited and will not easily fall off. At this time, the insert rod 322 is pulled, so that the insert rod 322 is locked inside the rotating insert block 317, thus completing the installation of the anti-axial deformation structure. When the rubber expansion joint body 4 releases its elastic potential energy, the connecting slide rod 22 will slide inside the mounting block 21, ensuring that the rubber expansion joint body 4 will not deform.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A rubber expansion joint with anti-axial deformation, comprising a flange body (1), characterized in that: The flange body (1) is provided with a rubber expansion joint body (4) inside, and an anti-axial deformation mechanism (2) is provided on the outside of the flange body (1). An anti-detachment mechanism (3) is provided on the outside of the anti-axial deformation mechanism (2). The anti-fall-off mechanism (3) includes a positioning and fixing component (31) and a locking component (32), wherein the locking component (32) is disposed outside the positioning and fixing component (31).

2. The rubber expansion joint with anti-axial deformation according to claim 1, characterized in that: The anti-axial deformation mechanism (2) includes a mounting block (21), which is fixedly installed on the outside of the flange body (1). A connecting slide rod (22) is provided inside the mounting block (21), and a spring (23) is provided on the outside of the connecting slide rod (22).

3. A rubber expansion joint with anti-axial deformation according to claim 2, characterized in that: The mounting block (21) and the connecting slide rod (22) are provided with holes at corresponding positions, and the connecting slide rod (22) is slidably installed inside the holes provided inside the mounting block (21).

4. A rubber expansion joint with anti-axial deformation according to claim 1, characterized in that: The positioning and fixing assembly (31) includes a threaded rod (311), which is threadedly installed inside the connecting slide rod (22). A baffle (312) is slidably installed on the outside of the threaded rod (311). A rotating shaft (313) is fixedly installed on the outside of the threaded rod (311). A gear (314) is fixedly installed on the outside of the rotating shaft (313). A housing (315) is rotatably installed on the outside of the rotating shaft (313). A rotating shaft (316) is rotatably installed inside the housing (315). A rotating insert (317) is fixedly installed on the outside of the rotating shaft (316). A gear (318) is fixedly installed on the inside of the rotating shaft (316).

5. A rubber expansion joint with anti-axial deformation according to claim 4, characterized in that: There are three gears (314), and the three gears (314) mesh with gears (318).

6. A rubber expansion joint with anti-axial deformation according to claim 4, characterized in that: The locking assembly (32) includes a fixing plate (321), which is fixedly installed on the outside of the housing (315). A plug rod (322) is slidably installed inside the fixing plate (321), and a spring (323) is provided on the outside of the plug rod (322).

7. A rubber expansion joint with anti-axial deformation according to claim 6, characterized in that: The rotating insert (317) and the corresponding position of the insert rod (322) are provided with holes, and the insert rod (322) is slidably installed inside the hole provided inside the rotating insert (317).

Images