Rubber joint convenient to expand

Abstract

The utility model relates to a rubber joint convenient to expand, which belongs to the technical field of rubber joints and comprises a rubber joint sleeve, rubber joints are arranged at two ends of the rubber joint sleeve, flange components are arranged on opposite sides of the two rubber joints, and the flange components are fastened on the outer wall of the rubber joint sleeve. The flange assembly comprises an upper half flange plate and a lower half flange plate which are matched with each other, first connecting pieces are fixedly connected to the two symmetrical sides of the upper half flange plate, second connecting pieces are fixedly connected to the two symmetrical sides of the lower half flange plate, and first fixing screws are arranged between the first connecting pieces and the second connecting pieces. The rubber joint convenient to expand is convenient to maintain, the whole device does not need to be replaced, cost is saved, and the problems that when a joint sleeve is damaged, due to tight combination of a metal flange plate, the joint sleeve cannot be rapidly detached to be replaced with a new joint sleeve, the whole joint device is usually replaced, and the maintenance cost is increased are solved.

Description

Technical Field

[0001] This utility model relates to the field of rubber joint technology, specifically to a rubber joint that is easy to expand and tighten. Background Technology

[0002] Rubber expansion joints are key components in piping systems used to compensate for thermal expansion and contraction, mechanical vibration, and installation misalignment. Early piping systems mainly used metal bellows or sliding joints to handle thermal displacement, but these structures suffered from problems such as susceptibility to corrosion, poor sealing, and high maintenance costs. In the 1950s, with the maturation of synthetic rubber technology, rubber expansion joints emerged. Their core advantage lies in utilizing the high elasticity and airtightness of rubber, combining the rubber layer with metal flanges or end pipes through an integral vulcanization process to form a flexible sealing structure that can absorb axial, lateral, and angular displacements while effectively isolating vibration and noise.

[0003] Conventional rubber expansion joints have metal flanges on both sides for connection. When the joint sleeve is damaged, it cannot be quickly removed to replace the joint sleeve due to the tight fit of the metal flanges. Usually, the entire joint assembly needs to be replaced, which increases maintenance costs.

[0004] Based on this, a rubber joint that is easy to expand and tighten is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a rubber joint that is easy to expand and tighten, and has the advantages of easy replacement and maintenance. It solves the problem that when the joint sleeve is damaged, it is impossible to quickly remove it to replace the new joint sleeve due to the tight fit of the metal flange. Usually, the entire joint device has to be replaced, which increases maintenance costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rubber joint that is easy to expand and tighten, comprising a rubber joint sleeve, wherein both ends of the rubber joint sleeve are provided with rubber joints, and flange assemblies are provided on opposite sides of the two rubber joints, wherein the flange assemblies are fastened to the outer wall of the rubber joint sleeve.

[0007] The flange assembly includes an upper flange plate and a lower flange plate that cooperate with each other. A first connecting piece is fixedly connected to both sides of the upper flange plate, and a second connecting piece is fixedly connected to both sides of the lower flange plate. A first fixing screw is provided between the first connecting piece and the second connecting piece. A positioning block is fixedly connected to the end of the lower flange plate, and a sealing sleeve is fixedly connected to the outer wall of the positioning block. The positioning block cooperates with the end of the upper flange plate.

[0008] Furthermore, both the upper and lower flange plates have through holes on their outer walls, with two through holes on each.

[0009] Furthermore, the first connecting piece and the second connecting piece correspond to each other, and the first fixing screw passes through the first connecting piece and is threaded to the inner side of the second connecting piece.

[0010] Furthermore, the inner side of the second connecting piece is provided with a mounting hole, and the inner side of the mounting hole is adapted to the first fixing screw.

[0011] Furthermore, a slot is provided at the end of the upper flange plate, and the inner side of the slot is adapted to the positioning block.

[0012] Furthermore, the sealing sleeve is a rubber sleeve.

[0013] Furthermore, fixing blocks are fixedly connected to the outer walls of both the upper and lower flange plates, and mounting grooves that are compatible with the fixing blocks are provided on both the upper and lower sides of the rubber joint.

[0014] Furthermore, the fixing block is L-shaped, and a second fixing screw is threaded onto the inner side of the fixing block, extending to the inner side of the rubber joint.

[0015] Compared with the prior art, this utility model provides a rubber joint that is easy to expand and tighten, and has the following beneficial effects:

[0016] This easily expandable rubber joint, composed of an upper and lower flange plate, forms a complete flange. It can be quickly and securely fastened to the outside of the rubber joint sleeve via the cooperation of a first connecting piece, a second connecting piece, and a fixing block. When the rubber joint sleeve is damaged and requires maintenance, the upper and lower flange plates can be quickly separated by removing the first and second fixing screws, facilitating rapid replacement of the rubber joint sleeve and rubber connector. Maintenance is convenient, eliminating the need to replace the entire device, thus saving costs. This solves the problem that when the joint sleeve is damaged, the tight fit of the metal flange makes it impossible to quickly remove and replace it with a new one, typically requiring the replacement of the entire joint assembly, which increases maintenance costs. Attached Figure Description

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

[0018] Figure 2 This is a structural schematic diagram of the upper and lower flange plates of this utility model;

[0019] Figure 3 This is a schematic diagram showing the structural separation of the upper and lower flange plates of this utility model;

[0020] Figure 4 This utility model Figure 3 A magnified structural diagram of structure A is shown.

[0021] In the diagram: 1. Rubber joint sleeve; 2. Rubber joint; 3. Upper flange plate; 4. Lower flange plate; 5. Through hole; 6. First connecting piece; 7. Second connecting piece; 8. First fixing screw; 9. Mounting hole; 10. Positioning block; 11. Sealing sleeve; 12. Fixing block; 13. Second fixing screw. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1 to 4 In this embodiment, a rubber joint that is easy to tighten includes a rubber joint sleeve 1. Both ends of the rubber joint sleeve 1 are provided with rubber joints 2, and flange assemblies are provided on opposite sides of the two rubber joints 2.

[0024] In this embodiment, the flange assembly is fastened to the outer wall of the rubber joint sleeve 1. The flange assembly includes an upper flange plate 3 and a lower flange plate 4 that cooperate with each other. The upper flange plate 3 and the lower flange plate 4 are combined to form a flange whole. A first connecting piece 6 is fixedly connected to both sides of the upper flange plate 3, and a second connecting piece 7 is fixedly connected to both sides of the lower flange plate 4. A first fixing screw 8 is provided between the first connecting piece 6 and the second connecting piece 7.

[0025] Both the upper flange plate 3 and the lower flange plate 4 have through holes 5 on their outer walls. There are two through holes 5 on the outer walls of both the upper flange plate 3 and the lower flange plate 4, which are used for installation with pipes.

[0026] It should be noted that the first connecting piece 6 and the second connecting piece 7 correspond to each other. The first fixing screw 8 passes through the first connecting piece 6 and is threaded to the inner side of the second connecting piece 7. The inner side of the second connecting piece 7 is provided with a mounting hole 9, which is adapted to the first fixing screw 8. The upper flange plate 3 and the lower flange plate 4 are fixed by the cooperation of the first connecting piece 6, the second connecting piece 7 and the first fixing screw 8. The connection stability is ensured by the arrangement of the first connecting piece 6 and the second connecting piece 7 on both sides.

[0027] In this embodiment, a positioning block 10 is fixedly connected to the end of the lower flange plate 4, and a sealing sleeve 11 is fixedly connected to the outer wall of the positioning block 10. The positioning block 10 cooperates with the end of the upper flange plate 3. A slot is provided at the end of the upper flange plate 3, and the inner side of the slot is adapted to the positioning block 10. The sealing sleeve 11 is a rubber sleeve. The setting of the sealing sleeve 11 ensures that the positioning block 10 and the slot are tightly fitted, thereby improving the stability of the structure.

[0028] In this embodiment, fixing blocks 12 are fixedly connected to the outer walls of the upper flange plate 3 and the lower flange plate 4. The upper and lower sides of the rubber joint 2 are provided with mounting grooves that are compatible with the fixing blocks 12. The fixing blocks 12 are L-shaped. The inner side of the fixing blocks 12 is threaded with a second fixing screw 13. The second fixing screw 13 extends to the inner side of the rubber joint 2. The fixing blocks 12 and the second fixing screw 13 can reinforce the rubber joint 2 and further improve the stability of the structure.

[0029] The working principle of the above embodiments is as follows:

[0030] In use, the upper flange plate 3 and the lower flange plate 4 are combined to form a flange assembly. They can be quickly fastened to the outside of the rubber joint sleeve 1 through the cooperation of the first connecting piece 6, the second connecting piece 7 and the fixing block 12. When the rubber joint sleeve 1 needs to be maintained due to damage, the upper flange plate 3 and the lower flange plate 4 can be quickly separated by removing the first fixing screw 8 and the second fixing screw 13, so as to facilitate the quick replacement of the rubber joint sleeve 1 and the rubber joint 2. Maintenance is convenient and does not require the replacement of the entire device, saving costs.

[0031] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that can achieve its beneficial effects can be implemented. It should be noted that the orientation or positional relationship indicated herein is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] 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.

[0033] 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. A rubber joint facilitating ease of tensioning, characterised in that: Includes a rubber joint sleeve (1), both ends of which are provided with rubber joints (2), and the opposite sides of the two rubber joints (2) are provided with flange assemblies, which are fastened to the outer wall of the rubber joint sleeve (1). The flange assembly includes an upper flange plate (3) and a lower flange plate (4) that cooperate with each other. A first connecting piece (6) is fixedly connected to both sides of the upper flange plate (3), and a second connecting piece (7) is fixedly connected to both sides of the lower flange plate (4). A first fixing screw (8) is provided between the first connecting piece (6) and the second connecting piece (7). A positioning block (10) is fixedly connected to the end of the lower flange plate (4), and a sealing sleeve (11) is fixedly connected to the outer wall of the positioning block (10). The positioning block (10) cooperates with the end of the upper flange plate (3).

2. A rubber joint for ease of expansion as claimed in claim 1 wherein: Both the upper flange plate (3) and the lower flange plate (4) have through holes (5) on their outer walls, and there are two through holes (5) on the outer walls of both the upper flange plate (3) and the lower flange plate (4).

3. A swivel joint for facilitating expansion of a rubber joint as claimed in claim 1, wherein: The first connecting piece (6) and the second connecting piece (7) correspond to each other, and the first fixing screw (8) passes through the first connecting piece (6) and is threaded to the inner side of the second connecting piece (7).

4. A facilitated tensioning rubber joint according to claim 3, characterized in that: The second connecting piece (7) has an installation hole (9) on its inner side, and the inner side of the installation hole (9) is adapted to the first fixing screw (8).

5. A facilitated tensioning rubber joint according to claim 1, characterized in that: The upper flange plate (3) has a slot at its end, and the inner side of the slot is adapted to the positioning block (10).

6. A facilitated tensioning rubber joint according to claim 1, characterized in that: The sealing sleeve (11) is a rubber sleeve.

7. A facilitated tensioning rubber joint according to claim 1, characterized in that: Fixing blocks (12) are fixedly connected to the outer walls of the upper flange plate (3) and the lower flange plate (4), and mounting grooves that are compatible with the fixing blocks (12) are provided on both the upper and lower sides of the rubber joint (2).

8. A facilitated tensioning rubber joint according to claim 7, characterized in that: The fixing block (12) is L-shaped, and a second fixing screw (13) is threaded on the inner side of the fixing block (12), which extends to the inner side of the rubber joint (2).

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