CN2341136Y

CN2341136Y - Leakage tester

Info

Publication number: CN2341136Y
Application number: CN 98215371
Authority: CN
Inventors: 李深梁
Original assignee: XINJIYUAN FIRE-FIGHTING SCIENCE AND TECHONLOGY Co LTD HANGZHOU
Current assignee: XINJIYUAN FIRE-FIGHTING SCIENCE AND TECHONLOGY Co LTD HANGZHOU
Priority date: 1998-06-12
Filing date: 1998-06-12
Publication date: 1999-09-29
Anticipated expiration: 2008-06-12

Abstract

The utility model discloses a leakage tester, particularly a device for detecting leakage quantity of liquid or gaseous objects arranged inside a sealed container. The utility model comprises a box body composed of a cover casing and a base. A lever mechanism for weighing weight is arranged inside the box body. The lever mechanism is composed of an active tool bar, a transferring tool bar, a levering bar, and a warning device. The principles of the lever and the zero error can be used, the contact type automatic alarm can be realized, and the detection accuracy can be enhanced.

Description

A kind of leakage detection apparatus

The utility model relates to the weighing apparatus of using weights or other counterbalance weights, specifically a kind of automatic leak-checking device.

To carry out leakage measuring instrumentation be the measuring method of using always to being stored in liquid state in the airtight container or gaseous substance to utilize weighing technology, by the weight of continuous coverage testee, can calculate leakage rate, reports to the police when leakage rate reaches alert the generation when spacing.For example, pound in the existing weighing equipment claims and utilizes the electronic scale of weight sensing technology, the former can't realize automatic warning, the weight of latter Ze Yin testee is much larger than leakage rate, measure in very big relatively range, precision is difficult to guarantee, and instrument will be in the energising duty always, influence serviceable life, reliability is also relatively poor.

The purpose of this utility model is that a kind of novel leakage detection apparatus will be provided, and it adopts leverage and utilizes the zero error principle, and the realization contact is reported to the police automatically, helps guaranteeing and the control detection precision.

The purpose of this utility model is achieved in that leakage detection apparatus, comprises the casing of being made up of case and base, is provided with the leverage of the usefulness of weighing in the casing, it is characterized in that said leverage includes:

1) initiatively knife bar of a load-bearing, the one end is fixed on the minor axis, and the suspension rod that hangs the thing of weighing is set on the knife bar, is provided with the adjustable push rod of zeroing usefulness between knife bar and the base;

2) transition is used Type switching knife bar, its middle part and axis are fixed, and one of its exit is provided with the edge of a knife, with the outstanding end overlap joint of active knife bar;

3) leveling bar of regulating control usefulness, it is fixed at the position and the minor axis of a close end, and the galianconism end is provided with the other end overlap joint of the edge of a knife and switching knife bar, its long-armed outer drawing, and be provided with the adjusting counterweight;

4) warning device that is triggered by microswitch, microswitch is located in the long-armed below stroke of leveling bar.

Described active knife bar is provided with and applies the draw ring that pre-tension is used.

Described warning device is made up of microswitch, power supply and pilot lamp.

The utility model adopts three lever combination and has the leverage of warning device, utilize driving knife pole pair testee to weigh, by regulating the zero clearing of push rod height, on the active knife bar, add the opposite force that a numerical value is the standard leak amount in advance, make leverage produce memory, lever is unbalance when the leakage rate of testee reaches standard value, and the starting warning device is realized reporting to the police automatically.Owing to regulate the zeroing effect of a bar, this leakage detection apparatus is only measured leakage rate under the null gravity state, thereby can in less range, work, greatly reduce the absolute error of measurement.And whole device keeps balance during weighing, only when leakage rate exceeds standard, trigger and report to the police, so good reliability.

The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is that the A of Fig. 1 is to view.

With reference to Fig. 1,2, leakage detection apparatus comprises the casing of being made up of case 5 and base 14, is provided with the leverage of the usefulness of weighing in the casing, and leverage is by forming with lower member:

1) initiatively knife bar 10 of a load-bearing, the one end is fixed on the minor axis 24, be provided with on the knife bar and hang the weigh suspension rod 16 of thing and the draw ring 8 that pre-tension is used, be provided with between knife bar 10 and the base 14 zeroing usefulness and the bottom be provided with the adjustable push rod 18 of set screw 17, minor axis 24 is arranged on the supporting seat 19 that is fixed on the base 14;

2) transition is used

Type switching knife bar 9, its middle part is fixing with axis 13 by screw 12, and one of its exit is provided with the edge of a knife 11, and initiatively the outstanding end of knife bar 10 is overlapped on the edge of a knife 11, and axis 13 is arranged on the supporting seat 15 that is fixed on the base 14;

3) leveling bar 2 of regulating control usefulness, it is fixing with minor axis 25 by screw 6 at the position near an end, the galianconism end is provided with the edge of a knife 7, the other end of switching knife bar 9 is overlapped on the edge of a knife 7, its long-armed outer drawing, and being provided with adjusting counterweight 1, minor axis 25 also is arranged on the supporting seat 19, with minor axis 24 axis coincidings;

4) warning device, by being fixed on battery 20 on the base 1 ' 4, being fixed on the microswitch 22 on the back-up block 21 and the pilot lamp 3 that is fixed on the case 5 is formed, microswitch 22 is located in the long-armed below stroke of leveling bar 2, forms loops by electric wire 4 and battery 20, pilot lamp 3.Also can in alarm circuit, set up hummer and conventional integrated circuit (IC) chip 23, form acoustic-optic alarm.

The course of work of above-mentioned leakage detection apparatus is such: one, zeroing.Testee is hung on the suspension rod 16, initiatively knife bar 10 is exerted pressure to the edge of a knife 7 of switching knife bar 9, leveling bar 2 successively, and leveling bar 2 rotates around minor axis 25, and the counterweight end upwarps, adjust set screw 17, the height control that makes push rod 18 is to making leveling bar 2 maintenance levels; Two, pre-tension.Apply the upper pulling force that a numerical value equals the standard leak amount with spring balance on draw ring 8, counterweight 1 is regulated in leveling bar 2 unbalance whereabouts, makes leveling bar 2 maintenance levels, cancels pre-tension, and this moment, leverage produced memory; Three, report to the police.When the leakage rate of measured object reaches standard value, leveling bar 2 unbalance whereabouts, microswitch 22 closures, warning device work produces automatically and reports to the police.

Claims

1, a kind of leakage detection apparatus comprises the casing of being made up of case (5) and base (14), is provided with the leverage of the usefulness of weighing in the casing, it is characterized in that said leverage includes:

1) initiatively knife bar (10) of a load-bearing, the one end is fixed on the minor axis (24), and the suspension rod (16) that hangs the thing of weighing is set on the knife bar, is provided with the adjustable push rod (18) of zeroing usefulness between knife bar (10) and the base (14);

2) transition is used Type switching knife bar (9), its middle part and axis (13) are fixing, and one of its exit is provided with the edge of a knife (11), overlaps with the outstanding end of active knife bar (10):

3) leveling bar (2) of regulating control usefulness, it is fixed at position and minor axis (25) near an end, and the galianconism end is provided with the other end overlap joint of the edge of a knife (7) and switching knife bar (9), its long-armed outer drawing, and be provided with adjusting counterweight (1);

4) warning device that triggers by microswitch (22),, microswitch (22) is located in the long-armed below stroke of leveling bar (2).

2, leakage detection apparatus as claimed in claim 1 is characterized in that described active knife bar (10) is provided with the draw ring (8) that applies pre-tension and use.

3, leakage detection apparatus as claimed in claim 2 is characterized in that described warning device is made up of microswitch (22), power supply and pilot lamp (3).