CN219224082U

CN219224082U - Pressure-resistant leak detection testing device for welding line of spring tube assembly

Info

Publication number: CN219224082U
Application number: CN202320223984.4U
Authority: CN
Inventors: 谈书平; 王云飞; 张凤花; 谈琳
Original assignee: Kunshan Yonghongda Precision Instrument Co ltd
Current assignee: Kunshan Yonghongda Precision Instrument Co ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-06-20
Anticipated expiration: 2033-02-16

Abstract

The utility model relates to a pressure-resistant leak detection testing device for a welding seam of a spring pipe assembly, which comprises a workbench and a liquid test groove, wherein two groups of positioning brackets are arranged on one side of the liquid test groove, swing arms are arranged on the positioning brackets, a swing cylinder is arranged on one side of the positioning brackets, a ventilation shaft is arranged between the two swing arms, one end of the ventilation shaft is provided with a micro motor, the other end of the ventilation shaft is connected with an air receiving pipe, a plurality of detection joint assemblies are arranged on the ventilation shaft, and each detection joint assembly comprises an air transmission pipeline, an electromagnetic valve and a rapid detection joint. The beneficial effects of the utility model are as follows: the combined structure of the swing arm, the swing cylinder, the ventilation shaft, the micro motor and the plurality of detection joint assemblies is adopted, so that the pressure maintaining test and the pressure leakage test of the plurality of spring tube assemblies can be simultaneously realized, and the loading and unloading time and the detection time are effectively saved by using two groups of methods for alternative use.

Description

Pressure-resistant leak detection testing device for welding line of spring tube assembly

Technical Field

The utility model relates to the technical field of pressure detection devices, in particular to a pressure-resistant leak detection testing device for a welding seam of a spring tube assembly.

Background

The spring tube pressure gauge is also called as a Bowden tube pressure gauge, and mainly comprises a watchcase, a panel, a pointer, a dial, a transmission mechanism, a spring tube, a housing and the like, wherein the free end of the spring tube in the pressure gauge is closed, a sector gear is driven to rotate by a pull rod, when the pressure rises, the spring tube deforms under the action of the pressure to be measured, so that the free end of the spring tube generates displacement, the displacement is in direct proportion to the size of the pressure to be measured, a pinion drives the pointer of a cylinder shaft to rotate, the pressure value is indicated on the dial, and when the pressure is reduced, the spring tube gradually contracts, and the pointer is driven to rotate by the pull rod and the sector gear;

the fixed end of the spring tube pressure gauge is welded with the copper seat, and pressure-resistant leakage detection test of the weld joint of the spring tube is required to be carried out in order to ensure the measurement and display precision of the pressure gauge;

the existing pressure-resistant leakage detecting and detecting equipment has the following defects in the detecting process, firstly, the leakage detecting result needs to be monitored manually and the unqualified spring tube assembly is taken down in time, but because one end of the spring tube assembly is a threaded joint, the screw threads are required to be screwed frequently during assembly and disassembly, the pressure-maintaining detection time is long, and a large amount of detection time is occupied.

Disclosure of Invention

The purpose of the utility model is that: the pressure-resistant leak detection testing device for the welding line of the spring tube assembly is provided to solve the problems in the background technology.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a withstand voltage leak hunting testing arrangement of spring tube assembly welding seam, includes workstation and liquid test groove, liquid test groove one side is equipped with two sets of locating support, be equipped with the swing arm on the locating support, locating support one side is equipped with the swing cylinder, two be equipped with the axle of ventilating between the swing arm, it is equipped with micro motor to ventilate axle one end, the axle other end of ventilating is connected with the air pipe, be equipped with a plurality of detection joint components on the axle of ventilating, including gas-supply pipeline, solenoid valve and short-term test joint on the detection joint component.

Preferably, the swing arm is rotatably connected with the positioning bracket through a connecting shaft, one end of the connecting shaft is connected with the swing cylinder, and the swing arm is positioned above the liquid test tank.

Preferably, the number of the plurality of detection joint assemblies is four, and the detection joint assemblies are arranged on the ventilation shaft at equal intervals.

Preferably, two ends of the ventilation shaft penetrate through the swing arms, and the ventilation shaft is communicated with the detection joint assemblies through six-way pipe joints.

Preferably, the rapid detection joint is detachably connected with the gas transmission pipeline.

Preferably, a plurality of water baffles corresponding to the detection joint assembly are arranged in the liquid test groove, and water pressure sensors are arranged in two adjacent water baffles.

The beneficial effects of the utility model are as follows: a pressure-resistant leak detection testing device for welding seams of spring tube assemblies adopts a combined structure of a swing arm, a swing cylinder, a ventilation shaft, a micro motor and a plurality of detection joint assemblies, can simultaneously realize pressure-maintaining test and pressure leakage test of the plurality of spring tube assemblies, and effectively saves loading and unloading time and detection time by using two groups of methods used alternately.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a partial structure of the present utility model;

FIG. 3 is a schematic view of a test connector assembly according to the present utility model;

FIG. 4 is a schematic diagram of a liquid test tank according to the present utility model.

In the figure: the device comprises a 1-workbench, a 2-liquid test tank, a 3-positioning bracket, a 4-swing arm, a 5-swing cylinder, a 6-ventilation shaft, a 7-micro motor, an 8-gas receiving pipe, a 9-detection joint assembly, a 91-gas transmission pipeline, a 92-electromagnetic valve, a 93-rapid detection joint, a 10-connecting shaft, a 11-water baffle, a 12-water pressure sensor and a 13-six-way pipe joint.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-4, a pressure-resistant leak detection testing device for a welding seam of a spring pipe assembly comprises a workbench 1 and a liquid test tank 2, hydraulic oil or water is injected into the liquid test tank 2 as a liquid test medium, two groups of positioning brackets 3 are arranged on one side of the liquid test tank 2, a swinging arm 4 is arranged on the positioning brackets 3, the two groups of positioning brackets 3 are fixed on the side edge of the liquid test tank 2, the swinging arm 4 is suspended above the liquid test tank 2, a swinging cylinder 5 is arranged on one side of the positioning brackets 3, the two swinging arms 4 are driven by the swinging cylinder 5, a ventilation shaft 6 is arranged between the two swinging arms 4, one end of the ventilation shaft 6 is provided with a micro motor 7, the other end of the ventilation shaft 6 is connected with an air connecting pipe 8, the air connecting pipe 8 is connected with a high-pressure air source output by a pressurizing system equipped with equipment, air or nitrogen is input into the ventilation shaft 6 through the air connecting pipe 8 as a gas test medium for pressure-maintaining test, a plurality of detection joint assemblies 9 are arranged on the ventilation shaft 6, the ventilation shaft 6 is driven by the micro motor 7 and then rotates for switching the detection joint assemblies 9 into the liquid test medium in the liquid test tank 2, the detection joint assemblies 9 are used for leak detection test, the detection joint assemblies 9 comprise a plurality of electromagnetic valves 92 and a plurality of detection electromagnetic valves 92 and a quick-speed joint 93 are arranged on the detection joint assemblies, each quick-speed joint assembly is provided with a quick-joint 93, and each quick-speed joint is provided with a quick-joint 93, and each quick-joint is provided with a quick-release valve 93.

The swing arm 4 is rotationally connected with the positioning bracket 3 through the connecting shaft 10, one end of the connecting shaft 10 is connected with the swing cylinder 5, the swing arm 4 is positioned above the liquid test tank 2, when the swing arm 4 descends, the spring tube assembly is immersed in the liquid test medium, and after the swing arm 4 is lifted, the spring tube assembly leaves the liquid test medium.

The number of the plurality of detection joint assemblies 9 is four, and the detection joint assemblies are arranged on the ventilation shaft 6 at equal intervals, so that a plurality of spring tube assemblies can be tested at the same time in one loading.

The two ends of the ventilation shaft 6 penetrate through the swing arm 4, the ventilation shaft 6 is communicated with the detection joint assemblies 9 through the six-way pipe joint 13, and the ventilation shaft 6, the six-way pipe joint 13 and the detection joint assemblies 9 are welded with each other.

The rapid detection connector 93 is detachably connected with the gas transmission pipeline 91, and the rapid detection connector 93 matched with the spring pipe assembly can be replaced according to the spring pipe assemblies with different sizes.

The liquid test tank 2 is internally provided with a plurality of water baffles 11 corresponding to the detection joint assembly 9, two adjacent water baffles 11 are internally provided with water pressure sensors 12, liquid test media are separated through the water baffles during leak detection test, and whether the spring tube assembly leaks pressure is detected through the water pressure sensors 12.

Before use, the spring tube assemblies to be detected are installed on the detection joint assemblies 9, one group of detection joint assemblies 9 has 24 quick detection joints 93, and 48 spring tube assemblies can be installed on two groups of detection joint assemblies 9 at a time;

after the installation is completed, the ventilation shaft 6 is connected with a gas test medium, each gas transmission pipeline 91 independently controls the gas inflow through the electromagnetic valve 92, the pressure maintaining test is firstly carried out after the gas inflow, then the swing arm 4 is driven to descend through the swing cylinder 5, a row of spring tube assemblies positioned at the lowest end of the liquid test tank 2 are immersed in the liquid test medium, the gas inflow is controlled through each electromagnetic valve, the leakage pressure detection is carried out, the ventilation shaft 6 is driven to rotate through the micro motor 7, the next row of spring tube assemblies are switched to be immersed in the liquid test medium, and six rows of spring tube assemblies are sequentially detected;

in the detection operation process, in order to save the installation time of the spring tube assembly and effectively utilize the test time of the pressure maintaining test, the two groups of swing arms 4 can be used alternately.

The above examples are provided to further illustrate the utility model and do not limit the utility model to these specific embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be construed as being within the protection scope of the present utility model.

Claims

1. The utility model provides a withstand voltage leak hunting testing arrangement of spring tube assembly welding seam, includes workstation (1) and liquid test groove (2), its characterized in that: liquid test groove (2) one side is equipped with two sets of locating support (3), be equipped with swing arm (4) on locating support (3), locating support (3) one side is equipped with swing cylinder (5), two be equipped with between swing arm (4) and ventilate axle (6), ventilate axle (6) one end is equipped with micro motor (7), ventilate axle (6) other end is connected with air pipe (8), be equipped with a plurality of detection joint components (9) on ventilate axle (6), including gas transmission pipeline (91), solenoid valve (92) and quick-operation joint (93) on detection joint components (9).

2. The spring tube assembly weld pressure and leak detection testing apparatus as defined in claim 1, wherein: the swing arm (4) is rotationally connected with the positioning support (3) through a connecting shaft (10), one end of the connecting shaft (10) is connected with the swing cylinder (5), and the swing arm (4) is located above the liquid test groove (2).

3. The spring tube assembly weld pressure and leak detection testing apparatus as defined in claim 1, wherein: the number of the detection joint assemblies (9) is four, and the detection joint assemblies are arranged on the ventilation shaft (6) at equal intervals.

4. The spring tube assembly weld pressure and leak detection testing apparatus as defined in claim 1, wherein: the two ends of the ventilation shaft (6) penetrate through the swing arms (4), and the ventilation shaft (6) is communicated with a plurality of detection joint assemblies (9) through six-way pipe joints (13).

5. The spring tube assembly weld pressure and leak detection testing apparatus as defined in claim 1, wherein: the rapid detection joint (93) is detachably connected with the gas transmission pipeline (91).

6. The spring tube assembly weld pressure and leak detection testing apparatus as defined in claim 1, wherein: a plurality of water baffles (11) corresponding to the detection joint assemblies (9) are arranged in the liquid test groove (2), and water pressure sensors (12) are arranged in two adjacent water baffles (11).