CN103231187A - Soldering device - Google Patents

Abstract

The invention discloses a welding repair device, which comprises a forming cover, a jacket, a steel ball with a handle and an asbestos ring strip; There is a square groove at the bottom to place asbestos ring strips. The steel ball with handle can be hard rubber material. Before welding repair, shrink and extend the three clamp arms of the jacket from the circular upper opening of the forming cover, and then place the steel ball with handle from the square lower opening of the forming cover into the middle of the three clamp arms of the jacket, which can be in a suspended clamping state. And the asbestos ring strips are evenly embedded in the square groove at the bottom of the forming cover. After welding repair, use a hard object to push the steel ball with handle, and pull out the jacket from the forming cover. At this time, pull the steel ball handle along the direction of the circular upper opening of the forming cover until it is closed under pressure. The welding repair device of the present invention has a simple structure, and can repair leaks and stop leaks instantaneously under the premise of unnecessary stoppage or depressurization of gas and liquid containers in a short period of time.

Description

A welding repair device

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【Technical field】

The invention relates to the field of mechanical structures, in particular to a welding repair device.

【Background technique】

With the continuous increase of the running time of some containers and pipelines, the aging of the material is becoming more and more serious. After cracks or sand holes appear on the surface, they leak in a spray shape. Due to the pressure in the container, it is impossible to directly repair the purpose by electric welding. It will only get bigger and bigger. At present, for the sealing and emergency repair of trachoma and cracks on the surface of gas and liquid containers, one is to use the stop medium, twist and press or add plugs to prevent leakage, and then add arc plate welding or fixtures to achieve the purpose of plugging . Another method, as shown in Figure 7, is mainly composed of a fixing bracket 8 and a compression screw 1. The front end of the compression screw 1 is provided with a connecting cap 3 and is connected with the compression pad 4 as a whole. A sealing gasket 5 is provided below. Usually leakage is caused by reasons such as corrosion, cracking, stress deformation, etc., so the sealing effect of this method is generally difficult to be effective. Even if this method is barely feasible, it is not a long-term solution. In the end, a secondary operation is required, and the welding repair operation is performed after the medium is stopped, which fails to solve the problem once. Although the existing plugging method is feasible, it is easy to cause damage to mechanical equipment. On the other hand, this method is not safe. If the pressure fluctuates, the plug may be ejected by force, resulting in a vicious accident.

【Content of invention】

Aiming at the shortcomings of the prior art, the purpose of the present invention is to provide a welding repair device that is safe, reliable, easy to operate, and strong in usability, and does not need to stop or reduce pressure for general gas and liquid containers.

The technical solution adopted in the present invention is: a welding repair device, characterized in that it includes a forming cover, a jacket, a handle steel ball and an asbestos ring strip; the jacket is a three-arm elastic clamp, and the diameter of its circular opening is slightly larger The upper opening of the cover is circular, and there is a square groove at the bottom of the forming cover, which can place asbestos ring strips.

Further, the steel ball with a handle can be a hard rubber ball.

Further, before the welding repair, the three clamping arms of the jacket are retracted and extended from the circular upper opening of the forming cover, and then the steel ball with a handle is inserted into the middle of the three clamping arms of the jacket from the square lower opening of the forming cover to form a suspended clamp. Tight state, and evenly embed the asbestos ring strips in the square groove at the bottom of the forming cover.

Further, after welding repair, push the steel ball with handle with a hard object, and pull out the jacket from the forming cover. At this time, pull the steel ball handle along the direction of the circular upper opening of the forming cover until it is closed under pressure.

The beneficial effect of the present invention is that the structure is simple, and the leakage point can be repaired and the leakage can be stopped instantaneously under the premise that the gas and liquid containers need not be stopped or depressurized in a short period of time.

【Description of drawings】

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the welding schematic diagram of the present invention;

Fig. 3 is a schematic diagram of sealing of the present invention;

1. Steel ball with handle 2. Jacket 3. Forming cover 4. Asbestos ring strip 5. Container wall 6. Trachoma 7. Welding torch

【Detailed ways】

Referring to the accompanying drawings, the present invention adopts a welding repair device, which is characterized in that it includes a forming cover, a jacket, a handle steel ball and an asbestos ring strip; the jacket is a three-arm elastic clamp, and the diameter of its circular opening is slightly larger than that of the forming The upper opening of the cover is circular, and there is a square groove at the bottom of the forming cover, which can place asbestos ring strips.

Further, the steel ball with a handle can be a hard rubber ball.

Further, before the welding repair, the three clamping arms of the jacket are retracted and extended from the circular upper opening of the forming cover, and then the steel ball with a handle is inserted into the middle of the three clamping arms of the jacket from the square lower opening of the forming cover to form a suspended clamp. Tight state, and evenly embed the asbestos ring strips in the square groove at the bottom of the forming cover.

Further, after welding repair, push the steel ball with handle with a hard object, and pull out the jacket from the forming cover. At this time, pull the steel ball handle along the direction of the circular upper opening of the forming cover until it is closed under pressure.

Specific welding repair steps:

Step 1: Place the jacket and the steel ball with handle inside the jacket in the forming cover in advance. The jacket is a three-arm elastic clamp. The diameter of its circular mouth is slightly larger than the circular upper opening of the forming cover. The three clamping arms of the jacket are stretched from the circular upper opening of the forming cover. The opening is placed in the middle of the three clamping arms of the jacket to form a suspended clamping state.

Step 2: Insert asbestos ring strips (the purpose of using asbestos component strips is to prevent high temperature damage during subsequent welding) evenly in the bottom square groove of the forming cover. The energy is centered on the leaking part of the container wall, and it sticks to the container wall with a little force (the asbestos strip and the container wall are impervious to water). Cracks or sand holes are ejected to form expansion, which reduces the difficulty of welding between the bottom edge of the forming cover and the container wall.

Step 3: At this time, there is no pressure between the bottom edge of the forming cover and the container wall, and welding (full packing and welding) can be performed on it. During the welding process, the leakage medium flows out through the circular upper opening of the forming cover along the circumference of the handle steel ball. Since the diameter of the upper opening is much larger than the leakage point, not only the pressure is reduced, but also the discharge flow is increased, which can completely eliminate potential safety hazards.

Step 4: After the full welding between the bottom edge of the forming cover and the container wall is completed, use a hard object to push the steel ball with handle downwards into the jacket, and pull the jacket out of the forming cover. Pull the steel ball handle in the opening direction until it is closed under pressure.

Step 5: Pack and weld the upper part of the forming cover in the form of full welding.

Preferred embodiments of this invention are described herein, including the best mode known to the inventors for carrying out the invention. Variations of the preferred embodiments may become apparent to those of ordinary skill in the art upon reading the foregoing description. The inventors expect skilled practitioners to employ such modifications appropriately, and the inventors believe that the invention may be practiced otherwise than as expressly described herein. Accordingly, this invention includes all modifications and equivalents of the subject matter recited in the claims appended hereto as permitted by applicable law. Moreover, any combination of all possible permutations of the above-described elements is encompassed by the invention unless otherwise indicated herein or otherwise clearly contradicted by context.

Claims (4)

1. a soldering device is characterized in that: comprise that having circle opens moulding cover, chuck, band handle steel ball and the asbestos ring bar of upper shed; Chuck is three arm spring chucks, and its circular port slightly larger in diameter is in the circular upper shed of moulding cover, and square groove is arranged at moulding cover bottom, can place the asbestos ring bar.

2. soldering device according to claim 1, it is characterized in that: band handle steel ball can be the ball of hard rubber material.

3. soldering device according to claim 1, it is characterized in that: before the soldering, three jig arm of chuck are stretched into from the circular upper shed contracting of moulding cover shape, to be with again in the middle of the handle steel ball inserts three jig arm of chuck from the square under shed of moulding cover, can become unsettled clamped condition, and the asbestos ring bar is embedded in uniformly in the bottom square groove of moulding cover.

4. soldering device according to claim 1, it is characterized in that: after the soldering, promote band handle steel ball with hard thing, and chuck is extracted from the moulding cover, draw steel ball handle along the circular upper shed direction of moulding cover this moment, seals until pressurized.

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