CN221055985U - A simple-to-use weld leak detection vacuum box - Google Patents

Abstract

The utility model discloses a weld leakage detection vacuum box with simple use, and relates to the technical field of weld leakage detection devices. The utility model comprises a detection box body, wherein an opening for covering a welding line is formed in the bottom of the detection box body, a sealing ring gasket is fixedly arranged on the side wall of the bottom opening of the detection box body, an observation window is formed in the side wall of the detection box body, and a vacuum detection meter is fixedly arranged on the upper side wall of the detection box body. The utility model reduces the use requirement and auxiliary equipment of the vacuum box during detection, plays a role in reducing the use cost of the vacuum box, is more convenient to use, and can restore the pressure in the box to the atmospheric pressure by closing the compressed air source valve after detection without installing an air inlet valve on the box body to balance the pressure in the box, thereby saving materials compared with the prior detection vacuum box, and further playing the role in reducing the cost.

Description

A simple-to-use weld leak detection vacuum box

Technical Field

The utility model relates to the technical field of weld leak detection devices, in particular to a weld leak detection vacuum box that is easy to use.

Background technique

At present, the vacuum box is an important equipment used by the steel industry to detect tank bottom plate leaks. The working principle of the common vacuum box is to spray soap liquid on the weld of the atmospheric pressure storage tank bottom plate, cover the vacuum box on the weld, and use a vacuum pump to evacuate the inside of the vacuum box. If there is a leak in the weld, soap bubbles will be generated at the leak point. The leak point on the weld can be observed through the observation window on the vacuum box, thereby realizing the detection of the atmospheric pressure storage tank bottom plate weld.

In the prior art, an ordinary leak detection vacuum box has a short exhaust pipe on the box body connected to the box body at one end and to a vacuum pump at the other end. An air inlet valve is also required to be installed on the box body. After the leak detection is completed, the valve is opened to connect to the atmosphere so that the air pressure in the box can be balanced with the atmosphere after the leak detection is completed, and the vacuum box is moved to detect the next section of the weld. In this way, an ordinary leak detection vacuum box uses more auxiliary equipment, and the use conditions and materials required for production are also relatively more. Therefore, a simple-to-use weld leak detection vacuum box is proposed.

Utility Model Content

The purpose of the utility model is to solve the problem that ordinary leak detection vacuum boxes use more auxiliary equipment and have relatively more usage conditions and materials required for production. The utility model provides a simple-to-use weld leak detection vacuum box.

In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

A simple-to-use weld leak detection vacuum box comprises a detection box body, an opening for covering the weld is provided at the bottom of the detection box body, and a sealing ring gasket is fixedly installed on the side wall of the bottom opening of the detection box body, an observation window is provided on the side wall of the detection box body, and a vacuum detection gauge is fixedly installed on the upper side wall of the detection box body, a vacuum generator is fixedly installed on the upper side wall of the detection box body, and a compressed air source ball valve is installed at the air inlet of the vacuum generator, and the compressed air source ball valve is connected to the air inlet of the vacuum generator, and an air inlet pipe is fixedly installed on one end of the compressed air source ball valve.

Preferably, a movable opening is provided on the side wall of the detection box, the observation window is slidably arranged in the movable opening, and a limit sealing plate is fixedly installed on one side wall of the observation window, the limit sealing plate is arranged on the outside of the detection box, and the limit sealing plate slides tightly against the outer side wall of the detection box, and an elastic sealing rubber pad is fixedly installed on the other side wall of the observation window, and the edges of the elastic sealing rubber pad are fixedly installed on the inner side wall of the detection box.

Preferably, a push handle is fixedly mounted on the side wall of the position limiting blocking plate, and an anti-slip pad is fixedly sleeved on the side wall of the push handle.

Preferably, a connecting pipe is fixedly installed on the air inlet of the vacuum generator, and the compressed air source ball valve and the vacuum generator are connected to each other through the connecting pipe.

Preferably, a support rod is installed on the side wall of the detection box, and an illumination light source is fixedly installed on one end of the support rod.

Preferably, a rotating shell is embedded on the side wall of the detection box, and a rotating ball is rotatably installed in the rotating shell, the support rod is inserted and installed in the rotating ball, a sealing rubber pad is fixedly installed on the peripheral side wall of the rotating ball, and the edge of the sealing rubber pad is fixedly installed on the outer side wall of the detection box.

The beneficial effects of the utility model are as follows:

1. In the utility model, the use environment requirements of the vacuum generator arranged on the detection box are very simple. As long as there is a compressed air source, no vacuum pump is needed. By using a low-cost vacuum generator, the vacuum degree requirement in the box can be achieved. Most factories have compressed air sources, the use conditions are convenient, and the cost is very low. Even if there is no compressed air source on site, it can be connected to an air compressor for use, which reduces the use requirements and auxiliary equipment of the vacuum box during detection, plays a role in reducing the use cost of the vacuum box, and makes it more convenient to use. In addition, there is no need to install an air inlet valve on the box to balance the pressure in the box. After the detection is completed, the compressed air source valve can be closed to restore the pressure in the box to atmospheric pressure. Compared with the existing detection vacuum box, it saves materials in production, thereby further reducing costs.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a front view schematic diagram of the overall three-dimensional connection structure of the utility model;

FIG2 is a schematic diagram of the three-dimensional connection structure of the detection box, the support rod and the lighting source in the utility model;

FIG. 3 is a bottom view of the overall three-dimensional connection structure of the present invention.

Figure numerals: 1. Detection box; 2. Sealing ring gasket; 3. Moving opening; 4. Observation window; 5. Limit sealing plate; 6. Push handle; 7. Vacuum detection gauge; 8. Vacuum generator; 9. Connecting pipe; 10. Compressed air source ball valve; 11. Inlet pipe; 12. Support rod; 13. Sealing rubber pad; 14. Lighting source; 15. Elastic sealing rubber pad; 16. Rotating ball.

Detailed ways

In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

As shown in Fig. 1-3, a simple-to-use weld leak detection vacuum box includes a detection box body 1. The detection box body 1 can adopt any commonly used vacuum detection box body in the prior art. The bottom of the detection box body 1 is provided with an opening for covering the weld, and a sealing ring gasket 2 is fixedly installed on the side wall of the bottom opening of the detection box body 1. The set sealing ring gasket 2 can increase the sealing effect between the detection box body 1 and the weld. A support rod 12 is installed on the side wall of the detection box body 1, and an illumination light source 14 is fixedly installed on one end of the support rod 12. A rotating shell is embedded and installed on the side wall of the detection box body 1, and a rotating ball 16 is rotatably installed in the rotating shell. The support rod 12 is inserted and installed in the rotating ball 16. A sealing rubber pad 13 is fixedly installed on the peripheral side wall of the rotating ball 16, and the edge of the sealing rubber pad 13 is fixedly installed on the outer side wall of the detection box body 1. The support rod 12 and the rotating ball 16 can drive the illumination light source 14 to adjust its position in the detection box body 1, so as to facilitate the observation of the situation inside the detection box body 1 in dim light.

An observation window 4 is arranged on the side wall of the detection box 1. The observation window 4 adopts a transparent window in the prior art. A movable opening 3 is opened on the side wall of the detection box 1. The observation window 4 is slidably arranged in the movable opening 3, and a limiting sealing plate 5 is fixedly installed on one side wall of the observation window 4. The limiting sealing plate 5 is arranged on the outer side of the detection box 1, and the limiting sealing plate 5 slides tightly against the outer side wall of the detection box 1.

A pushing handle 6 is fixedly installed on the side wall of the limit sealing plate 5, and an anti-slip pad is fixedly sleeved on the side wall of the pushing handle 6. The set pushing handle 6 can conveniently drive the limit sealing plate 5 to move, and an elastic sealing rubber pad 15 is fixedly installed on the side wall on the other side of the observation window 4, and the edges of the elastic sealing rubber pad 15 are fixedly installed on the inner wall of the detection box 1. By setting the observation window 4 to be movable, the position of the observation window 4 can be conveniently adjusted, so that the condition of the weld in the detection box 1 can be more carefully observed.

A vacuum detection gauge 7 is fixedly installed on the upper side wall of the detection box 1, a vacuum generator 8 is fixedly installed on the upper side wall of the detection box 1, and a compressed air source ball valve 10 is installed at the air inlet of the vacuum generator 8, and the compressed air source ball valve 10 is connected to the air inlet of the vacuum generator 8, and a connecting pipe 9 is fixedly installed on the air inlet of the vacuum generator 8. The compressed air source ball valve 10 is connected to the vacuum generator 8 through the connecting pipe 9. The connection through the connecting pipe 9 can facilitate the assembly and disassembly between the vacuum generator 8 and the compressed air source ball valve 10, and an air inlet pipe 11 is fixedly installed at one end of the compressed air source ball valve 10.

In summary: when conducting a weld test, first apply a certain amount of soapy water on the weld, then buckle the detection box 1 on the weld, connect the compressed air source or air compressor to the vacuum generator 8 via the air inlet pipe 11 and the compressed air source ball valve 10, and then use the vacuum generator 8 to draw a vacuum degree of about 55kPa inside the detection box 1, and observe whether there are bubbles in the detection box 1. If there are bubbles, mark them and weld them. After the inspection is completed, turn off the air source to restore the pressure in the detection box 1 to atmospheric pressure, and immediately proceed to the next weld inspection.

The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A weld leak detection vacuum box that is easy to use, characterized in that it comprises a detection box body (1), the bottom of the detection box body (1) is provided with an opening for covering the weld, and a sealing ring gasket (2) is fixedly installed on the side wall of the bottom opening of the detection box body (1), an observation window (4) is provided on the side wall of the detection box body (1), and a vacuum detection gauge (7) is fixedly installed on the upper side wall of the detection box body (1), a vacuum generator (8) is fixedly installed on the upper side wall of the detection box body (1), and a compressed air source ball valve (10) is installed at the air inlet of the vacuum generator (8), and the compressed air source ball valve (10) is connected to the air inlet of the vacuum generator (8), and an air inlet pipe (11) is fixedly installed at one end of the compressed air source ball valve (10). 2. A weld leak detection vacuum box that is easy to use according to claim 1, characterized in that a movable opening (3) is opened on the side wall of the detection box body (1), the observation window (4) is slidably arranged in the movable opening (3), and a limit sealing plate (5) is fixedly installed on one side wall of the observation window (4), the limit sealing plate (5) is arranged on the outside of the detection box body (1), and the limit sealing plate (5) slides tightly against the outer side wall of the detection box body (1), and an elastic sealing rubber pad (15) is fixedly installed on the other side wall of the observation window (4), and the edges of the elastic sealing rubber pad (15) are fixedly installed on the inner side wall of the detection box body (1). 3. A weld leak detection vacuum box that is easy to use according to claim 2, characterized in that a push handle (6) is fixedly installed on the side wall of the limiting sealing plate (5), and an anti-slip pad is fixedly sleeved on the side wall of the push handle (6). 4. A weld leak detection vacuum box that is easy to use according to claim 1, characterized in that a connecting pipe (9) is fixedly installed on the air inlet of the vacuum generator (8), and the compressed air source ball valve (10) and the vacuum generator (8) are connected to each other through the connecting pipe (9). 5. A weld leak detection vacuum box that is easy to use according to claim 1, characterized in that a support rod (12) is installed on the side wall of the detection box body (1), and an illumination light source (14) is fixedly installed on one end of the support rod (12). 6. A weld leak detection vacuum box that is easy to use according to claim 5, characterized in that a rotating shell is embedded and installed on the side wall of the detection box body (1), and a rotating ball (16) is rotatably installed in the rotating shell, the support rod (12) is inserted and installed in the rotating ball (16), a sealing rubber pad (13) is fixedly installed on the peripheral side wall of the rotating ball (16), and the edge of the sealing rubber pad (13) is fixedly installed on the outer side wall of the detection box body (1).