On-site pressure testing device for steel fittings

Abstract

The utility model discloses a steel fitting on-site pressure test device, and particularly relates to the technical field of gas pipeline construction, comprising an installation panel, the top end of the installation panel is provided with a plurality of installation holes, and the top of the installation panel is provided with a first extrusion assembly and two second extrusion assemblies. The first extrusion assembly comprises a first support, a first lead screw, an ejector block and a first threaded sleeve, the first support and the mounting panel are fixed through a plurality of bolts, and each of the two second extrusion assemblies comprises a second support, a second lead screw, a second threaded sleeve, a sliding block and an extrusion sealing plate. According to the utility model, the rear side of the pipe fitting is limited through the first screw rod and the top block, the second rotating handle is rotated to enable the extrusion sealing plates to be in contact with one side of the pipe fitting, the pipe fitting is extruded and fixed through the two extrusion sealing plates, and finally a pressure test is carried out, so that the pipe fitting does not need to be polished, cut, welded and the like, the working efficiency is improved, and the labor intensity is reduced. And the service life of the pipe fitting is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of gas pipeline construction technology, and more specifically, to a steel fittings on-site pressure testing device. Background Technology

[0002] Gas pipeline construction refers to the process of installing and arranging gas pipelines in buildings or other locations to ensure a safe and stable supply of gas. In gas pipeline construction, the welding, sealing test, and subsequent treatment of on-site connectors are key steps to ensure pipeline safety and sealing.

[0003] Currently, single or multiple pipe fittings on site are connected by welding and sealed with steel plates at the ends for pressure testing. After the pressure test is completed, they are cut and separated, then ground and welded back to the corresponding parts of the pipeline. However, repeated grinding, welding and cutting affect the material of the pipe fittings, which will lead to a decrease in the performance of the pipe fittings. In addition, it also increases the consumption of manpower and consumables and reduces work efficiency. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a field pressure testing device for steel fittings, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel fitting on-site pressure testing device, including a mounting panel. The top of the mounting panel has multiple mounting holes. The top of the mounting panel is provided with a first extrusion assembly and two second extrusion assemblies. The first extrusion assembly includes a first bracket, a first lead screw, a top block, and a first threaded sleeve. The first bracket is fixed to the mounting panel by multiple bolts. Each of the two second extrusion assemblies includes a second bracket, a second lead screw, a second threaded sleeve, a slider, and an extrusion sealing plate. The second bracket is fixed to the mounting panel by multiple bolts. Each of the two second lead screws is threaded with a connecting cylinder, and one end of each connecting cylinder is fixedly connected to one of the two sliders.

[0006] Furthermore, the first threaded sleeve is fixedly installed on the first bracket, and the first threaded sleeve is threadedly connected to the first lead screw, and the top block is movably sleeved on the front end of the first lead screw.

[0007] Furthermore, a first throttle is movably provided on the rear side of the first bracket, and the front end of the first throttle is fixedly connected to the first lead screw.

[0008] It can be seen that the above technical solution is designed to facilitate the rotation of the first lead screw.

[0009] Furthermore, the two second lead screws are movably connected to the two second brackets via bearings, the two second threaded sleeves are respectively fixedly installed on the two second brackets, and the opposing sides of the two sliders are respectively fixedly connected to the two extrusion sealing plates.

[0010] Furthermore, each of the two second brackets has two slide rods fixedly connected to it, and one end of each of the four slide rods passes through two sliders.

[0011] It can be seen that the above technical solution is designed to facilitate limiting the rotation of the slider.

[0012] Furthermore, each of the two second brackets has a second throttle handle movably mounted on its opposite side, and the opposite ends of the two second throttle handles are respectively fixedly connected to the two second lead screws.

[0013] It can be seen that the above technical solution is designed to facilitate the rotation of the second lead screw.

[0014] Furthermore, the mounting panel is threaded with two threaded positioning cylinders, and the top ends of the two threaded positioning cylinders extend into the two second brackets respectively.

[0015] It can be seen that the above technical solution facilitates the positioning of the second extrusion component.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. This utility model limits the rear side of the pipe fitting by using the first lead screw and the top block. Rotating the second handle drives the extrusion sealing plate to move horizontally and make the extrusion sealing plate contact one side of the pipe fitting. Similarly, the position of the other extrusion sealing plate is adjusted, and the pipe fitting is extruded and fixed by the two extrusion sealing plates. Finally, a pressure test is performed. There is no need to grind, cut, weld or other operations on the pipe fitting, which improves work efficiency and effectively extends the service life of the pipe fitting.

[0018] 2. In this utility model, when testing the air tightness of a 90° elbow pipe fitting or a reducing tee pipe fitting, the threaded positioning cylinder is rotated and extended into one of the mounting holes. The second extrusion assembly is positioned by the threaded positioning cylinder. Then, according to the model of the pipe fitting, the two second brackets are installed on the mounting panel. The structure is simple and convenient for testing connectors of different shapes and curvatures. It has a wide range of applications. Attached Figure Description

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a top view of the overall structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the assembly structure of the mounting panel and the threaded positioning cylinder of this utility model;

[0023] Figure 4 This is a schematic diagram of the second extrusion assembly structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the first extrusion component of this utility model.

[0025] In the diagram: 1. Mounting panel; 2. Mounting hole; 3. First extrusion assembly; 4. Second extrusion assembly; 5. Connecting cylinder; 6. Threaded positioning cylinder; 301. First bracket; 302. First lead screw; 303. Top block; 304. First threaded sleeve; 305. First throttle; 401. Second bracket; 402. Second lead screw; 403. Second threaded sleeve; 404. Slider; 405. Extrusion sealing plate; 406. Slide rod; 407. Second throttle. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Refer to the instruction manual appendix Figure 1-5The steel fittings on-site pressure testing device of this embodiment includes a mounting panel 1. The top of the mounting panel 1 has multiple mounting holes 2. The top of the mounting panel 1 is provided with a first extrusion assembly 3 and two second extrusion assemblies 4. The first extrusion assembly 3 includes a first bracket 301, a first lead screw 302, a top block 303 and a first threaded sleeve 304. The first bracket 301 is fixed to the mounting panel 1 by multiple bolts. The two second extrusion assemblies 4 each include a second bracket 401, a second lead screw 402, a second threaded sleeve 403, a slider 404 and an extrusion sealing plate 405. The second bracket 401 is fixed to the mounting panel 1 by multiple bolts. The two second lead screws 402 are threadedly connected to connecting cylinders 5, and the opposite ends of the two connecting cylinders 5 are respectively fixedly connected to the two sliders 404.

[0028] Furthermore, the first threaded sleeve 304 is fixedly installed on the first bracket 301, and the first threaded sleeve 304 is threadedly connected to the first lead screw 302. The top block 303 is movably sleeved on the front end of the first lead screw 302. The first throttle 305 is movably provided on the rear side of the first bracket 301, and the front end of the first throttle 305 is fixedly connected to the first lead screw 302.

[0029] Furthermore, the two second lead screws 402 are movably connected to the two second brackets 401 via bearings. The two second threaded sleeves 403 are respectively fixedly installed on the two second brackets 401. The opposing sides of the two sliders 404 are respectively fixedly connected to the two extrusion sealing plates 405. Two slide rods 406 are fixedly connected to each of the two second brackets 401, and one end of each of the four slide rods 406 passes through the two sliders 404. The opposing sides of the two second brackets 401 are movably provided with second throttles 407, and the opposing ends of the two second throttles 407 are respectively fixedly connected to the two second lead screws 402. The mounting panel 1 is threadedly connected to two threaded positioning cylinders 6, and the top ends of the two threaded positioning cylinders 6 extend into the two second brackets 401 respectively.

[0030] In this design, multiple bolts are passed through the first bracket 301 and extended into multiple mounting holes 2 on the mounting panel 1, thereby fixing the first bracket 301 to the mounting panel 1. When testing the air tightness of a 90° elbow fitting or a reducing tee fitting, the threaded positioning cylinder 6 is rotated and extended into one of the mounting holes 2. The second extrusion assembly 4 is positioned by the threaded positioning cylinder 6. Then, according to the model of the fitting, the two second brackets 401 are installed on the mounting panel 1. The structure is simple, convenient for testing connectors of different shapes and curvatures, and has a wide range of applications.

[0031] The usage method of this embodiment is as follows:

[0032] In use, rotating the first handle 305 drives the first lead screw 302 to rotate and move horizontally, adjusting the position of the first lead screw 302. Then, the top block 303 is fitted onto the first lead screw 302, and the fitting is placed on top of the mounting panel 1, with the rear side of the fitting in contact with the top block 303. The first lead screw 302 and the top block 303 limit the rear side of the fitting. Rotating the second handle 407 drives the second lead screw 402 to rotate. Since the second lead screw 402 is threadedly connected to the connecting cylinder 5, and the two sliding rods 406 restrict the rotation of the connecting cylinder 5 and the slider 404, the second lead screw... 402 can drive the connecting cylinder 5 and the slider 404 to move horizontally, thereby driving the extrusion sealing plate 405 to move horizontally and making the extrusion sealing plate 405 contact one side of the pipe fitting. Similarly, the position of the other extrusion sealing plate 405 is adjusted, and the pipe fitting is extruded and fixed by the two extrusion sealing plates 405. Finally, a pressure test is carried out. There is no need to grind, cut, weld or other operations on the pipe fitting, which improves work efficiency and effectively extends the service life of the pipe fitting. It is worth noting that the pipe fitting is a common steel fitting. This utility model is for testing the air tightness of a 45° elbow pipe fitting.

[0033] All contents not described in detail in the specification are existing technologies known to those skilled in the art. The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel fittings on-site pressure testing device, comprising a mounting panel (1), wherein the top of the mounting panel (1) is provided with a plurality of mounting holes (2), characterized in that: The top of the mounting panel (1) is provided with a first extrusion assembly (3) and two second extrusion assemblies (4). The first extrusion assembly (3) includes a first bracket (301), a first lead screw (302), a top block (303), and a first threaded sleeve (304). The first bracket (301) is fixed to the mounting panel (1) by multiple bolts. The two second extrusion assemblies (4) each include a second bracket (401), a second lead screw (402), a second threaded sleeve (403), a slider (404), and an extrusion sealing plate (405). The second bracket (401) is fixed to the mounting panel (1) by multiple bolts. Each of the two second lead screws (402) is threaded with a connecting cylinder (5), and the opposite ends of the two connecting cylinders (5) are respectively fixedly connected to the two sliders (404).

2. The on-site pressure testing device for steel fittings according to claim 1, characterized in that: The first threaded sleeve (304) is fixedly installed on the first bracket (301), and the first threaded sleeve (304) is threadedly connected to the first lead screw (302). The top block (303) is movably sleeved on the front end of the first lead screw (302).

3. The on-site pressure testing device for steel fittings according to claim 1, characterized in that: The first bracket (301) has a first throttle (305) movably disposed on its rear side, and the front end of the first throttle (305) is fixedly connected to the first lead screw (302).

4. The on-site pressure testing device for steel fittings according to claim 1, characterized in that: The two second lead screws (402) are movably connected to the two second brackets (401) by bearings. The two second threaded sleeves (403) are respectively fixedly installed on the two second brackets (401). The two sliders (404) are respectively fixedly connected to the two extrusion sealing plates (405) on opposite sides.

5. The on-site pressure testing device for steel fittings according to claim 1, characterized in that: Two slide rods (406) are fixedly connected to each of the two second brackets (401), and one end of each of the four slide rods (406) passes through two sliders (404).

6. The on-site pressure testing device for steel fittings according to claim 1, characterized in that: Each of the two second brackets (401) has a second throttle (407) movably mounted on one side opposite to the other, and the two second throttles (407) are respectively fixedly connected to the two second lead screws (402).

7. The on-site pressure testing device for steel fittings according to claim 1, characterized in that: The mounting panel (1) is threaded with two threaded positioning cylinders (6), and the top ends of the two threaded positioning cylinders (6) extend into the two second brackets (401) respectively.

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