Expansion joint pressure test tool

Abstract

The utility model relates to the technical field of expansion joint detection equipment, in particular to an expansion joint pressure test tool. According to the technical scheme, the device comprises two cylindrical main body supporting matching plates which are distributed left and right, and the main body supporting matching plates are connected together through fastening connecting bolt assemblies which are evenly distributed in the circumferential direction. Placement limiting stabilizing seats connected together in a welding mode are arranged on the end faces of the adjacent sides of the main body supporting matching plate in the left-right direction, the main body structure of each placement limiting stabilizing seat is a cylindrical matching supporting plate, and an integrally-formed conical first limiting matching column is arranged on the side, close to the center shaft, of the matching supporting plate. The utility model has the advantages that expansion joint products of various specifications can be directly placed in a matching way, the stability and tightness during matching can be ensured to be better through a corresponding placement stable matching structure, the expansion joint can be quickly taken down after a detection test, and the overall flexibility during use is stronger.

Description

Technical Field

[0001] This utility model relates to the technical field of expansion joint testing equipment, and in particular to an expansion joint pressure testing fixture. Background Technology

[0002] To ensure product quality, expansion joints typically require pressure testing during production. Existing pressure testing methods involve welding a composite plate to the end of the expansion joint to be tested, then cutting and removing it after the test. This process is inefficient, has relatively high overall costs, offers limited flexibility in use, and results in low overall operational efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide an expansion joint pressure testing fixture. It adopts a brand-new structural design and can be used as a common fixture. It can directly fit and place various specifications of expansion joint products. Through the corresponding placement and stable fitting structure, it can ensure better stability and tightness during fitting. It can be quickly removed after testing. It has greater overall flexibility in use, more convenient fitting operation, lower overall cost, and better overall accuracy in pressure testing.

[0004] The technical solution of this utility model is as follows:

[0005] An expansion joint pressure testing fixture is characterized by comprising two cylindrical main support plates distributed on the left and right sides, the main support plates being connected together by a circumferentially distributed fastening bolt assembly, and a placement limiting and stabilizing seat connected together by welding on the adjacent end faces of the main support plates in the left and right directions. The main structure of the placement limiting and stabilizing seat is a cylindrical support plate, and an integrally formed conical first limiting and stabilizing post is provided on the side of the support plate near the central axis. An integrally formed conical second limiting and stabilizing post is provided on the support plate outside the first limiting and stabilizing post. The inner and outer sides of the first and second limiting and stabilizing posts are both conical structural surfaces. A detection placement combination limiting groove is formed between the first and second limiting and stabilizing posts. The position of the detection placement combination limiting groove is inserted and combined with the end of the product to be tested. A pressure detection fitting hole communicating with the hollow position inside the product to be tested is provided at the center of the main support plate.

[0006] Furthermore, the height of the first limiting mating post is greater than the height of the second limiting mating post.

[0007] Furthermore, the outer side of the second limiting mating post coincides with the outer edge of the placing limiting stabilizing seat.

[0008] Furthermore, a safety clearance fitting hole is provided at the central axis position of the placement limiting and stabilizing seat.

[0009] Furthermore, the outer fastening nut connection position of the fastening bolt assembly is provided with an anti-loosening fitting structure.

[0010] The beneficial effects of this utility model are:

[0011] This utility model adopts a brand-new structural design, which can be used as a common tooling to directly fit and place various specifications of expansion joint products. Through the corresponding placement and stable fitting structure, it can ensure better stability and tightness during fitting. It can be quickly removed after testing. It has greater overall flexibility during use, more convenient fitting operation, lower overall cost, and better overall accuracy during pressure testing. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a front view of the present invention;

[0014] Figure 3 This is a schematic diagram of the left side of this utility model;

[0015] Figure 4 This is a cross-sectional view of position AA of this utility model;

[0016] Figure 5 This is a top view of the present invention;

[0017] Figure 6 This is a partially enlarged schematic diagram of position B in this utility model;

[0018] Figure 7 This is a three-dimensional structural diagram of the present invention in the second direction;

[0019] In the diagram: 1. Main support plate, 2. Fastening bolt assembly, 3. Placement limit and stabilizing seat, 4. First limit and stabilizing column, 5. Second limit and stabilizing column, 6. Product to be tested. Detailed Implementation

[0020] like Figures 1 to 7As shown, an expansion joint pressure testing fixture includes two cylindrical main support plates 1 distributed on the left and right sides. The main support plates 1 are connected together by a fastening bolt assembly 2 evenly distributed around the circumference. The main support plates 1 are provided with a placement limiting and stabilizing seat 3 connected together by welding on the adjacent end faces of the left and right sides. During use, the expansion joint to be tested can be placed through this position. The main structure of the placement and limiting stabilizing seat 3 is a cylindrical mating support plate. The mating support plate has an integrally formed conical first limiting mating post 4 on one side near its central axis. The mating support plate also has an integrally formed conical second limiting mating post 5 located outside the first limiting mating post 4. Both the inner and outer sides of the first and second limiting mating posts 4 and 5 are conical structural surfaces. A detection and placement combination limiting groove is formed between the first and second limiting mating posts 4 and 5. This detection and placement combination limiting groove is inserted into the end of the product 6 to be tested, ensuring better stability during placement, better stability during pressure testing, stronger load-bearing capacity, and easier assembly and disassembly. The main support mating plate 1 has a pressure detection mating hole at its center, communicating with the hollow interior of the product 6 to be tested, enabling mating connection during pressure testing. It adopts a brand-new structural design and can be used as a common tooling to directly fit various specifications of expansion joint products. Through the appropriate placement and stable fit structure, it can ensure better stability and tightness during the fit. It can be quickly removed after testing. It has greater overall flexibility and is more convenient to use. The overall cost is lower and the overall accuracy during pressure testing is better.

[0021] Preferably, the height of the first limiting mating post 4 is greater than the height of the second limiting mating post 5, which improves the structural safety of the internal position, provides better guidance during mating, and can play a limiting role during mating, resulting in better mating stability.

[0022] Preferably, the outer side of the second limiting and fitting post 5 coincides with the outer edge of the placement limiting and stabilizing seat 3, which makes the structure of the outer position more flat and the structural strength can be further improved, making the fitting safety more reliable during use.

[0023] Preferably, the central axis of the placement limiting and stabilizing seat 3 is provided with a safety clearance fitting hole, which ensures more space in the middle position during use.

[0024] Preferably, the outer fastening nut connection position of the fastening bolt assembly 2 is provided with an anti-loosening mating structure, which provides better assembly safety during fastening and higher safety during disassembly and assembly.

[0025] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements or substitutions can be made without departing from the principle of this utility model, and these improvements or substitutions should also be considered within the protection scope of this utility model.

Claims

1. A pressure testing fixture for expansion joints, characterized in that: The system includes two cylindrical main support plates (1) distributed on the left and right sides. The main support plates (1) are connected together by a circumferentially distributed fastening bolt assembly (2). The main support plates (1) have adjacent end faces on the left and right sides with placement limiting and stabilizing seats (3) connected together by welding. The main structure of the placement limiting and stabilizing seat (3) is a cylindrical support plate. The support plate has an integrally formed conical first limiting and stabilizing column (4) on the side near the central axis. The support plate is located at the first limiting and stabilizing column. An integrally formed conical second limiting fitting column (5) is provided on the outer side of the column (4). The inner and outer sides of the first limiting fitting column (4) and the second limiting fitting column (5) are both conical structural surfaces. A detection placement combination limiting groove is formed between the first limiting fitting column (4) and the second limiting fitting column (5). The position of the detection placement combination limiting groove is inserted and combined with the end of the product to be tested (6). The center position of the main support fitting plate (1) is provided with a pressure detection fitting hole that communicates with the hollow position inside the product to be tested (6).

2. The expansion joint pressure testing fixture according to claim 1, characterized in that: The height of the first limiting fitting post (4) is greater than the height of the second limiting fitting post (5).

3. The expansion joint pressure testing fixture according to claim 1, characterized in that: The outer side of the second limiting and fitting post (5) coincides with the outer edge of the placement limiting and stabilizing seat (3).

4. The expansion joint pressure testing fixture according to claim 1, characterized in that: The central axis of the placement limiting and stabilizing seat (3) is provided with a safety clearance fitting hole.

5. The expansion joint pressure testing fixture according to claim 1, characterized in that: The outer fastening nut connection position of the fastening bolt assembly (2) is provided with an anti-loosening fit structure.

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