CN87208811U - Automatic sealing device for water channel - Google Patents

Abstract

The utility model provides an automatic sealing device, in particular suitable for a water channel of an ultrasonic fault detection device for pipe material and material with various geometric shapes. The utility model which comprises a body, a trigger, a controlling circuit, a moving gate, and a driver is characterized in that when the material to be detected is fed in or is discharged out of the water channel, the inlet of a pipe and the outlet of the pipe are automatically opened and are closed for keeping the stability of a horizontal plane required by fault detection; the requirements on a transmission device is reduced, and detection precision and detection quality are guaranteed. The utility model which has the advantages of compact structure, simple and convenient assembly and disassembly, low cost, easy manufacture is one important part of the ultrasonic fault detection device.

Description

Automatic sealing device for water channel

The utility model relates to a kind of automatic sealing system, and it is specially adapted to the tank automatic sealing of the ultrasonic automatic flaw detecting device of tubing and various geometric configuration materials.

Existing tank automatic sealing system:

Based on the U.S. be to adopt the pipe tail to insert the method for connection plug, to prevent that drainage (NDT International August 1977.P171-180 took place before next root tubing enters tank.Author H.E.Gondtoft etc., international Non-Destructive Testing magazine).

2. what go up the import of Hypon guiding principle is a complete set of equipment of West Germany, employing be the pipe tail that follow-up tube head is right after the front, in case leak, promptly one is right after one, and requires the vertical tubular axis of pipe end tangent plane, does not have burr, otherwise will produce drainage.

3. Baoji Nonferrous Metal Processing Plant adopts the rubber water blockoff.Only be applicable to the small-bore pipe that φ 20mm is following, even stifled bad like this, the water of outflow is a spot of.Do not influence surface level.

In sum, the water blockoff of tank is an international and domestic technical barrier always, though above-mentioned 1,2 two kind of method can realize water blockoff, but when beginning must one blind pipe block the inlet pipe mouth and the outlet spout of tank earlier, and then pipe is surveyed in reception, more notably be because advancing of pipe is that friction force by rubber wheel realizes, tubing before water logging with water logging after skin-friction coefficient different, the pace of tubing is just different so.The tubing of intake chamber just is difficult to one with the tubing that has entered tank and is right after one, makes that connection plug is loosening, throws off and cause and leak in a large number, so strict to gearing, structure is also complicated.In order to guarantee not take place drainage, guarantee the stable and accuracy of detection of surface level, so above-mentioned 1,2 two kind of method controlled the transfer rate of forward and backward pipe with regard to having designed the very complicated photoelectric positioning system of a cover.The 3rd kind of method is little because of the bore of the mouth of pipe, and water blockoff is unimportant.

The purpose of this utility model is special shortcoming at above-mentioned the whole bag of tricks, design a kind of system of the automatic water blockoff of form at tank external application gate, this system can singlely detect, and does not need complicated photoelectric positioning system, is applicable to that various caliber pipe materials and section are the material of geometric configuration.Can keep the interior surface level of tank constant fully.

Tank automatic sealing system is made up of the body, trigger, control circuit, dodge gate and the driver that are fixed on the tank.Body can be processed by organic glass, metal, plastic or other material.There is one to allow the up and down groove of dodge gate in its centre, the duct of an installation trigger is respectively arranged on the both sides of groove.Whole body can be separately fixed at the outside (accompanying drawing 2 has the position of " ten ") of the inlet pipe mouth and the outlet spout of tank with bolt.Body can be changed along with the bore difference of pipe, only need unclamp bolt, and the body of changing suitable bore gets final product.If measured material is geometric configuration (square, ellipse garden, triangle, trapezoidal etc.), the then replaceable body that is fit to this shape.Trigger is made up of the A and two of the B of same structure.They respectively have the guiding principle pearl of an activity, when pipe enters body, when contacting the guiding principle pearl, move the jack-up push rod on the steel ball, spring is housed on the push rod, push rod disconnects limit switch, thereby just produced system control signal, this signal can be produced by photoelectric tube, electromagnetism produces, pneumatic generation or electronic generation etc.Control circuit is fixed on the top of body.It mainly is made up of relay (solenoid valve, air valve or oil control switch also can) and 12 volts of power supplys.Its effect is the action of Control Driver.When push rod disconnected limit switch, 12 volts of power connections, the spring leaf of relay were inhaled down, and making 36 volts of required power supplys of drive operation is off-state, and driver is not worked, and dodge gate is blocked the mouth of a river owing to the gravity reason falls.When push rod disconnects limit switch, 12 volts of power supplys of relay work are disconnected, the spring leaf in the relay leaves electric magnetic absorbing mass, makes driver connect 36 volts of power supplys, thereby makes drive operation, drives on the dodge gate and moves, and opens entery and delivery port.Dodge gate can be made by rustless metal or plastics.The upper end is connected the lower end of driver, thereby with the upper and lower activity of driver, its upper and lower scope of activities can be 2mm-500mm.When it falls, just fall into the groove of body, thereby block the mouth of a river.Driver has been a driving action, and it can be realized driving by the form with power such as electromagnet, motor, air pressure, hydraulic pressure, oil pressure.It is fixed on the support, and the upper end of lower end and dodge gate is close to.When the upper and lower action of driver, can drive the upper and lower action of dodge gate, thereby realization is opened the door and the purpose of water blockoff.

The utlity model has following characteristics: tank automatic sealing system can be used for various caliber pipe materials and section is the material of various geometric configuratioies, is applicable to the detection (each continuous detecting) of single or many same specification materials.Can open and close the inlet pipe mouth and the outlet spout of tank automatically, not need complicated photoelectric positioning system, and can keep the interior surface level of tank stable fully, guarantee accuracy of detection.This system architecture compactness, simple, the dress folding is convenient, with low cost, easy to process.

1 to 4 represented embodiment is described in detail the utility model below in conjunction with accompanying drawing.Present embodiment is example with tubing.

Accompanying drawing 1 is the side view of system.1-body wherein, 2-trigger, 3-control circuit, 4-dodge gate, 5-driver.

Accompanying drawing 2 is front elevations of system.1-body wherein, 2-trigger, 3-control circuit, 4-dodge gate, 5-driver.

Accompanying drawing 3 is trigger structure figure.1-body wherein, 6-steel ball, 7-push rod, 8-spring, 9-limit switch.

Accompanying drawing 4 is action electrical schematic diagrams.3-control circuit wherein, 4-dodge gate, 5-driver.

The course of action of tank automatic sealing of the present utility model system is: when not switching on, because dodge gate has weight, because of the reason of gravity, dodge gate falls to blocking the mouth of a river.Do not have the inlet pipe period of the day from 11 p.m. to 1 a.m when energising, all triggerings of limit switch (9A, 9B) because of trigger are in closure state.12 volts of power supplys connecting make relay work, inhale shell fragment down, have disconnected 36 volts of required power supplys of drive operation, and driver is not worked, and dodge gate still is a full state, blocks the mouth of a river.

When tested tubing enters body and touch the steel ball of trigger, move the jack-up push rod on the steel ball, limit switch 9A is disconnected, 12 volts of power supplys of supply control circuit are cut off, and make driver connect 36 volts of power supplys, and the electromagnet of driver sucts the iron tongue, drive on the dodge gate and move, thereby open water inlet.At this moment because of pipe has entered body, and the mouth of tubing and afterbody be with the stifled jail of rubber stopper, and water can not flow out outside the tank in managing, and make the water level of tank constant.

When pipe moves on and touches (9B) steel ball of trigger, limit switch 9B disconnects, and because of limit switch 9A, 9B are the polyphone forms, control circuit remains unchanged, thereby realized the automatic unlatching of the inlet pipe mouth inlet pipe period of the day from 11 p.m. to 1 a.m, blocked the surface level that current have kept tank.

When the pipe of water inlet is covered soon (by limit switch 9A), limit switch 9A reposition closure at first, but because of limit switch 9B is an off-state still, so control circuit still remains unchanged.When tubing moves on, when limit switch 9B, 9B reposition closure makes 12 volts of power connections, and the relay work of control circuit disconnects 36 volts of required power supplys of drive operation, and dodge gate is because of gravity fall, and water is plugged.At this moment because of also having a segment distance from 9B screw clamp exit wall, and the afterbody of tubing also jam-pack rubber stopper, so surface level still remains unchanged.

An identical cover system is also loaded onto in outside at the water delivering orifice of tank, and the system of its course of action and water inlet is identical.Block into and out of the current of the mouth of pipe and the repertoire of auto-action thereby native system has played, so just guaranteed the stable of surface level, reduced requirement gearing.

Claims (2)

1, a kind of automatic sealing device is specially adapted to tank automatic sealing system, comprises body [1], control circuit [3], driver [5], it is characterized in that:

A., dodge gate [4] is housed in body [1] and supplies the up and down groove of dodge gate [4], the upper end of dodge gate [4] is connected with the lower end of driver [5],

B. in the front and back of dodge gate [4] trigger [2] is housed, trigger [2] is made up of structure identical A and B, the A of trigger [2] and B are made of each steel ball [6], push rod [7], spring [8], limit switch [9], steel ball [6], push rod [7], spring [8] are packed in the trigger duct, and limit switch [9] contacts with the top of push rod [7].

2, device according to claim 1, the stroke that it is characterized in that dodge gate (4) is 2mm-500mm.

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