Expansion joint connecting and sealing assembly

Abstract

The utility model relates to the technical field of expansion joints, and discloses an expansion joint connecting and sealing assembly which comprises an expansion joint and a sealing cover, connecting flanges are fixedly installed at the two ends of the expansion joint, pipelines are fixedly installed at the ends, away from the expansion joint, of the connecting flanges, and extending blocks are fixedly installed outside the connecting flanges. A flange connecting rod is fixedly installed in the extending block, an arc-shaped sealing plate is fixedly installed outside the sealing cover, a sealing mechanism is arranged in the sealing cover, and a stabilizing mechanism is arranged outside the sealing cover. The sealing cover can be conveniently positioned through the arranged positioning block under the cooperation of the flange connecting rod, the lifting plate can be conveniently moved through the rotating stud, and the flange connecting rod can be conveniently limited under the cooperation of the baffle, so that the limiting of the sealing cover is completed, workers do not need to support the sealing cover for a long time, and the working efficiency is improved. And the other sealing cover can be conveniently installed subsequently.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion joints, in particular to an expansion joint connection sealing component. Background Art

[0002] An expansion joint is a flexible component that effectively compensates for axial deformation. For example, an expansion joint welded to the shell of a fixed tube-sheet heat exchanger has high axial flexibility and is easily deformed. This compensates for the thermal expansion difference between the tubes and the shell due to different wall temperatures, reducing their axial load and, therefore, minimizing the thermal stresses in the tubes, tubesheet, and shell, thus avoiding damage to the tubes, resulting in instability, and tube pull-out.

[0003] In the prior art, expansion joints are usually connected to pipes through connecting flanges. However, since expansion joints are often used outdoors, the connecting parts of the expansion joints are easily corroded by rainwater or other liquids with long-term use, resulting in poor sealing performance of the expansion joints and shortening the service life of the expansion joints. Therefore, it is necessary to improve an expansion joint connection sealing assembly to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an expansion joint connection sealing assembly to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an expansion joint connection sealing assembly, comprising an expansion joint and a sealing cover, wherein connecting flanges are fixedly installed at both ends of the expansion joint, a pipe is fixedly installed at one end of the connecting flange away from the expansion joint, an extension block is fixedly installed on the outside of the connecting flange, a flange connecting rod is fixedly installed on the inside of the extension block, an arc-shaped sealing plate is fixedly installed on the outside of the sealing cover, a sealing mechanism is provided inside the sealing cover, and a stabilizing mechanism is provided on the outside of the sealing cover.

[0006] Preferably, the sealing mechanism includes a positioning block, which is fixedly mounted on the inner wall of the expansion joint, a stud is rotatably mounted on the outside of the positioning block, a lifting plate is threadedly mounted on the outside of the stud, a baffle is fixedly mounted on the side of the lifting plate close to the flange connecting rod, a first sealing gasket is fixedly mounted on the outside of the expansion joint, and a second sealing gasket is fixedly mounted on the outside of the arc-shaped sealing plate, which facilitates sealing and protection of the expansion joint.

[0007] Preferably, a sliding groove is provided inside the positioning block at a position corresponding to the flange connecting rod, and the flange connecting rod is slidably installed in the sliding groove, so as to facilitate the positioning of the positioning block.

[0008] Preferably, the stabilizing mechanism includes a protrusion, which is fixedly mounted on the outside of the sealing cover, a limiting block is slidably mounted inside the protrusion, a threaded plate is fixedly mounted on the outside of the limiting block, a connecting shell is slidably mounted on the outside of the threaded plate, and a bidirectional threaded rod is rotatably mounted inside the connecting shell to facilitate the limiting work of the sealing cover.

[0009] Preferably, threaded holes are provided inside the threaded plate at positions corresponding to the bidirectional threaded rods, and the bidirectional threaded rods are threadedly installed in the threaded holes to facilitate the movement of the threaded plate.

[0010] Compared with the prior art, the present invention provides an expansion joint connection sealing assembly with the following beneficial effects:

[0011] 1. The expansion joint connection sealing assembly, through the provided sealing mechanism, during use, through the provided positioning block, with the cooperation of the flange connecting rod, it is convenient to position the sealing cover; by rotating the stud, it is convenient to move the lifting plate; with the cooperation of the baffle, it is convenient to limit the flange connecting rod, thereby completing the limiting of the sealing cover, without the need for staff to support the sealing cover for a long time, facilitating the subsequent installation of another sealing cover; through the provided first sealing gasket and the second sealing gasket, the sealing work of the expansion joint is facilitated, thereby increasing the service life of the expansion joint.

[0012] 2. The expansion joint connection sealing assembly is provided with a stabilizing mechanism. During use, by holding the connection shell and rotating the two-way threaded rod, the threaded plate is moved, so that the limit block is slidably installed inside the protrusion, thereby completing the positioning of the limit block. With the continued rotation of the two-way threaded rod, the limit block is squeezed against the protrusion, so that the sealing cover is tightly fitted, thereby increasing the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0014] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the pipeline position relationship of the utility model;

[0016] Figure 3 This is a schematic diagram of the position relationship of the sealing mechanism of the utility model;

[0017] Figure 4 This is a schematic diagram of the position relationship of the flange connecting rod of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the stabilizing mechanism of the utility model.

[0019] In the figure: 1. Expansion joint; 2. Sealing cover; 3. Connecting flange; 4. Pipe; 5. Extension block; 6. Flange connecting rod; 7. Arc-shaped sealing plate; 8. Sealing mechanism; 801. Positioning block; 802. Stud; 803. Lifting plate; 804. Baffle; 805. First sealing gasket; 806. Second sealing gasket; 9. Stabilizing mechanism; 901. Protrusion; 902. Limiting block; 903. Threaded plate; 904. Connecting shell; 905. Bidirectional threaded rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0022] Example 1:

[0023] See also Figure 1-4 The utility model provides a technical solution: an expansion joint connection sealing assembly, comprising an expansion joint 1 and a sealing cover 2, with connecting flanges 3 fixedly installed at both ends of the expansion joint 1, a pipe 4 fixedly installed at the end of the connecting flange 3 away from the expansion joint 1, an extension block 5 fixedly installed on the outside of the connecting flange 3, a flange connecting rod 6 fixedly installed on the inside of the extension block 5, an arc-shaped sealing plate 7 fixedly installed on the outside of the sealing cover 2, a sealing mechanism 8 provided inside the sealing cover 2, and a stabilizing mechanism 9 provided outside the sealing cover 2.

[0024] Furthermore, the sealing mechanism 8 includes a positioning block 801, which is fixedly mounted on the inner wall of the expansion joint 1. A stud 802 is rotatably mounted on the outside of the positioning block 801, and a lifting plate 803 is threadedly mounted on the outside of the stud 802. A baffle 804 is fixedly mounted on the side of the lifting plate 803 close to the flange connecting rod 6. A first sealing gasket 805 is fixedly mounted on the outside of the expansion joint 1, and a second sealing gasket 806 is fixedly mounted on the outside of the arc-shaped sealing plate 7, which facilitates sealing and protection of the expansion joint.

[0025] Furthermore, a sliding groove is provided inside the positioning block 801 at a position corresponding to the flange connecting rod 6 , and the flange connecting rod 6 is slidably installed in the sliding groove, which facilitates the positioning of the positioning block 801 .

[0026] Example 2:

[0027] See also Figure 5 , and combined with Example 1, it is further obtained that the stabilizing mechanism 9 includes a protrusion 901, the protrusion 901 is fixedly installed on the outside of the sealing cover 2, a limit block 902 is slidably installed inside the protrusion 901, a threaded plate 903 is fixedly installed on the outside of the limit block 902, a connecting shell 904 is slidably installed on the outside of the threaded plate 903, and a bidirectional threaded rod 905 is rotatably installed inside the connecting shell 904 to facilitate the limiting work of the sealing cover 2.

[0028] Furthermore, threaded holes are provided inside the threaded plate 903 at positions corresponding to the bidirectional threaded rod 905 , and the bidirectional threaded rod 905 is threadedly installed in the threaded holes, so as to facilitate the movement of the threaded plate 903 .

[0029] When the sealing cover 2 is in the closed position, the flange connecting rod 6 and the positioning block 801 are used to position the sealing cover 2. When the sealing cover 2 is in the closed position, the flange connecting rod 6 and the positioning block 801 are used to position the sealing cover 2. When the flange connecting rod 6 and the positioning block 801 are used to position the sealing cover 2, the lifting plate 803 is moved toward the flange connecting rod 6 by rotating the stud 802. The baffle 804 is moved toward the flange connecting rod 6 to limit the flange connecting rod 6, thereby limiting the sealing cover 2. The staff is required to support the sealing cover 2 for a long time to facilitate the subsequent installation of another sealing cover 2. The two arc-shaped sealing plates 7 are limited by using bolts. The connecting shell 904 is moved to the appropriate position and the two-way threaded rod 905 is rotated to move the threaded plate 903. The limiting block 902 is slidably installed inside the protrusion 901. As the two-way threaded rod 905 is rotated, the limiting block 902 squeezes the protrusion 901. With the cooperation of the first sealing gasket 805 and the second sealing gasket 806, the expansion joint 1 is sealed.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. An expansion joint connection sealing assembly, comprising an expansion joint (1) and a sealing cover (2), characterized in that: Both ends of the expansion joint (1) are fixedly mounted with connecting flanges (3); one end of the connecting flange (3) away from the expansion joint (1) is fixedly mounted with a pipe (4); an extension block (5) is fixedly mounted on the outside of the connecting flange (3); a flange connecting rod (6) is fixedly mounted on the inside of the extension block (5); an arc-shaped sealing plate (7) is fixedly mounted on the outside of the sealing cover (2); a sealing mechanism (8) is provided inside the sealing cover (2); and a stabilizing mechanism (9) is provided on the outside of the sealing cover (2).

2. An expansion joint connection sealing assembly according to claim 1, characterized in that: The sealing mechanism (8) includes a positioning block (801), the positioning block (801) is fixedly mounted on the inner wall of the expansion joint (1), a stud (802) is rotatably mounted on the outside of the positioning block (801), a lifting plate (803) is threadedly mounted on the outside of the stud (802), a baffle (804) is fixedly mounted on the side of the lifting plate (803) close to the flange connecting rod (6), a first sealing gasket (805) is fixedly mounted on the outside of the expansion joint (1), and a second sealing gasket (806) is fixedly mounted on the outside of the arc-shaped sealing plate (7).

3. An expansion joint connection sealing assembly according to claim 2, characterized in that: A sliding groove is provided inside the positioning block (801) at a position corresponding to the flange connecting rod (6), and the flange connecting rod (6) is slidably installed in the sliding groove.

4. The expansion joint connection sealing assembly according to claim 2, characterized in that: The stabilizing mechanism (9) comprises a protrusion (901), the protrusion (901) being fixedly mounted on the outside of the sealing cover (2), a limit block (902) being slidably mounted inside the protrusion (901), a threaded plate (903) being fixedly mounted on the outside of the limit block (902), a connecting shell (904) being slidably mounted on the outside of the threaded plate (903), and a bidirectional threaded rod (905) being rotatably mounted inside the connecting shell (904).

5. The expansion joint connection sealing assembly according to claim 4, characterized in that: A threaded hole is provided inside the threaded plate (903) at a position corresponding to the bidirectional threaded rod (905), and the bidirectional threaded rod (905) is threadedly installed in the threaded hole.

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