CN223611049U

CN223611049U - Multi-station air tightness testing equipment

Info

Publication number: CN223611049U
Application number: CN202520074040.4U
Authority: CN
Inventors: 张强; 唐飞; 姚杰
Original assignee: Hangzhou Hangsheng Electrical Equipment Co ltd
Current assignee: Hangzhou Hangsheng Electrical Equipment Co ltd
Priority date: 2025-01-14
Filing date: 2025-01-14
Publication date: 2025-11-28
Anticipated expiration: 2035-01-14

Abstract

The utility model discloses multi-station air tightness testing equipment which comprises a base, a bottom plate, supporting columns and a top plate, wherein the bottom plate is fixed on the base, the bottom plate and the top plate are fixedly supported through the supporting columns, a hydraulic cylinder is arranged on the top plate, the bottom of the output end of the hydraulic cylinder penetrates through the top plate and is fixedly connected with a lower pressing plate, the lower pressing plate is in sliding connection with the supporting columns and moves along the supporting columns in a guiding way, a plurality of testing stations are arranged on the bottom plate, a lower supporting piece is arranged on each testing station, an upper pressing piece is arranged at the bottom of the lower pressing plate and corresponds to each testing station, the lower supporting piece is a base frame, a notch is formed in the base frame and is used for being matched with and placing a gas meter shell, the outer edge of the open end of the gas meter shell is covered on the outer edge of the surface of the base frame, a circle of sealing ring is arranged at the bottom of the upper pressing piece and corresponds to the outer edge of the surface of the base frame, an air charging pipe and a pressure sensor are respectively arranged at the center of the bottom of the upper pressing piece. The utility model greatly improves the air tightness test efficiency and the test stability.

Description

Multi-station air tightness testing equipment

Technical Field

The utility model relates to the technical field of gas meter processing and manufacturing, in particular to multi-station air tightness testing equipment.

Background

As shown in fig. 1, the conventional gas meter case 1 is required to perform a gas tightness test during the process. The existing air tightness test is that after the opening end of a gas meter shell is manually assembled and sealed through a sealing plate, other holes are sealed, an air charging pipeline with a valve and an air pressure meter is communicated, after gas with specified test air pressure is flushed, the gas meter shell is placed into underwater soaking water for air leakage observation, and whether air bubbles are generated is observed.

The test mode has the defects of 1, low detection efficiency, 3 minutes of single test time, 2, poor consistency of manual assembly sealing test, leak detection error, 3, unstable test pressure, 4, the product needs to be soaked in water for test, and a cleaning procedure is added after the test is finished.

Disclosure of utility model

In order to solve the technical problems, the utility model designs multi-station air tightness testing equipment.

The utility model adopts the following technical scheme:

The utility model provides a multistation gas tightness test equipment, which comprises a frame, the frame includes the base, the bottom plate, support column and roof, the bottom plate is fixed on the base, support column fixed stay through four sides angular distribution between bottom plate and the roof, be provided with the pneumatic cylinder on the roof, pneumatic cylinder output bottom passes roof fixed connection holding down plate, holding down plate and support column sliding connection, along support column direction lift removal, install a plurality of test stations on the bottom plate, install down support piece on every test station, the holding down plate bottom corresponds every test station and installs the casting die, down support piece is base frame, be provided with the notch in the base frame and be used for the cooperation to place the gas watchcase, the outer edge of gas watchcase open end covers on base frame surface, it is provided with the round sealing washer to go up the casting die bottom and correspond base frame surface outer edge, go up casting die bottom center and install pneumatic tube and pressure sensor respectively, install control valve on the pneumatic tube.

Preferably, three test stations are mounted on the base plate.

Preferably, the bottom plate and the lower pressing plate are correspondingly provided with limiting columns. And the lower pressure plate is prevented from being over-pressure limited.

Preferably, two hydraulic cylinders which can synchronously lift are arranged on the top plate, and the bottom of each hydraulic cylinder is respectively and fixedly connected with the lower pressing plate at the output ends.

Preferably, the inflation tube is connected to an external inflation device.

Preferably, the sealing ring is a silica gel sealing ring.

The multi-station gas tightness testing device has the beneficial effects that the multi-station gas tightness testing device is designed and is special for gas tightness testing of the gas meter shell, so that the gas tightness testing efficiency and the testing stability are greatly improved, the cost of product testing is reduced, and the labor force is reduced.

Drawings

FIG. 1 is a schematic view of a prior art gas meter case;

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

FIG. 3 is a schematic view of a structure in the direction A-A in FIG. 2;

In the figure, 1, a gas meter shell, 2, a base, 3, a bottom plate, 4, a support column, 5, a top plate, 6, a lower pressing plate, 7, an upper pressing piece, 8, a sealing ring, 9, a lower support piece, 10, an inflation tube, 11, a hydraulic cylinder, 12 and a limit column.

Detailed Description

The technical scheme of the utility model is further specifically described by the following specific embodiments with reference to the accompanying drawings:

The embodiment is as shown in fig. 2 and 3, the multi-station air tightness testing device comprises a frame, wherein the frame comprises a base 2, a bottom plate 3, support columns 4 and a top plate 5, the bottom plate is fixed on the base, the bottom plate and the top plate are fixedly supported by the support columns distributed at four angles, a hydraulic cylinder 11 is arranged on the top plate, the bottom of the output end of the hydraulic cylinder penetrates through the top plate to be fixedly connected with a lower pressing plate 6, the lower pressing plate is in sliding connection with the support columns and moves along the support columns in a guiding way, three testing stations are arranged on the bottom plate, a lower supporting piece 9 is arranged on each testing station, an upper pressing piece 7 is arranged at the bottom of the lower pressing plate corresponding to each testing station, the lower supporting piece is a base frame, a notch is formed in the base frame and is used for being matched with and placing a gas meter shell, the outer edge of the opening end of the gas meter shell is covered on the outer edge of the surface of the base frame, a circle of sealing ring 8 is arranged at the bottom of the outer edge of the upper pressing piece corresponding to the surface of the base frame, an inflation tube 10 and a pressure sensor are respectively arranged at the bottom center of the upper pressing piece.

And the bottom plate and the lower pressing plate are correspondingly provided with limiting columns 12. Two hydraulic cylinders which can synchronously lift are arranged on the top plate, and the bottom of each hydraulic cylinder is respectively and fixedly connected with a lower pressing plate at the output end. The inflation tube is connected to an external inflation device. The sealing ring adopts a silica gel sealing ring.

When the multi-station air tightness testing device is used, other hole sites of a gas meter shell are sealed, the gas meter shell is placed on a lower supporting piece of three testing stations, the opening end of the gas meter shell is placed upwards, then a hydraulic cylinder is started to drive a pressing plate to press down, a sealing ring seals the opening end of the gas meter shell, at the moment, the gas meter shell is sealed, then a control valve is started to inflate inside the gas meter shell until the gas meter shell is inflated to a set inflation value displayed by a pressure sensor, then the gas meter shell is closed and then is kept stand for observing for a period of time after inflation, the pressure value displayed by the pressure sensor is unchanged, and the air tightness requirement is met.

The above-described embodiment is only a preferred embodiment of the present utility model, and is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.

Claims

1. A multi-station airtightness testing device, comprising a frame, characterized in that the frame includes a base, a bottom plate, support columns, and a top plate, the bottom plate being fixed on the base, the bottom plate and the top plate being fixedly supported by support columns distributed at the four corners, a hydraulic cylinder being provided on the top plate, the bottom of the output end of the hydraulic cylinder passing through the top plate and fixedly connected to a lower pressure plate, the lower pressure plate being slidably connected to the support columns and moving up and down along the guide of the support columns, multiple testing stations being installed on the bottom plate, each testing station being equipped with a lower support component, and an upper pressure component being installed at the bottom of the lower pressure plate corresponding to each testing station, the lower support component being a base frame, the base frame having a slot for fitting a gas meter housing, the outer edge of the gas meter housing opening covering the outer edge of the base frame surface, a sealing ring being provided at the bottom of the upper pressure component corresponding to the outer edge of the base frame surface, an inflation pipe and a pressure sensor being respectively installed at the center of the bottom of the upper pressure component, and a control valve being installed on the inflation pipe.

2. The multi-station airtightness testing equipment according to claim 1, characterized in that three testing stations are installed on the base plate.

3. The multi-station airtightness testing equipment according to claim 1, characterized in that limit posts are correspondingly installed on the base plate and the lower pressure plate.

4. The multi-station airtightness testing equipment according to claim 1, characterized in that two synchronously lifting hydraulic cylinders are installed on the top plate, and the bottom output ends of the two hydraulic cylinders are respectively fixedly connected to the lower pressure plate.

5. The multi-station airtightness testing equipment according to claim 1, characterized in that the inflation pipe is connected to an external inflation device.

6. The multi-station airtightness testing equipment according to claim 1, characterized in that the sealing ring is a silicone sealing ring.