CN215296596U

CN215296596U - Air tightness detection box

Info

Publication number: CN215296596U
Application number: CN202121950112.5U
Authority: CN
Inventors: 董鹏
Original assignee: Hubei Jifa New Material Technology Co ltd
Current assignee: Hubei Jifa New Material Technology Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2021-12-24
Anticipated expiration: 2031-08-18

Abstract

The utility model provides an air tightness detection box, which comprises a box body with an opening at the upper end, a top plate hinged with the box body for opening and closing the opening, a sealing component arranged on the top plate for sealing a bottle blank to be detected and an inflation component for inflating the interior of the box body; the detection box also comprises a pressure sensor arranged in the box body and a sealing ring arranged on the periphery of the opening side line at the upper end of the box body; the seal assembly comprises a telescopic device installed on the top plate and a telescopic device located on one side of the top plate opposite to the opening, the output end of the telescopic device penetrates through the seal cover fixedly connected with the top plate, and the output end of the telescopic device is connected with the top plate in a sliding mode. The utility model discloses the device, the seal assembly who installs on the roof can seal the bottle base that awaits measuring, and the sealed back inflation assembly of bottle base that awaits measuring is next to aerifing to the bottle base that awaits measuring inside, aerifys and breaks off the gaseous supply after reaching a certain amount, and whether the bottle base that awaits measuring leaks gas is judged through installing the pressure sensor detection pressure change inside the gas tightness detection case box.

Description

Air tightness detection box

Technical Field

The utility model relates to an air tightness check out test set technical field especially relates to an air tightness detection case.

Background

The air tightness detection is mainly used for detecting whether leakage occurs at each connecting part of the container. The traditional air tightness detection methods mainly comprise two methods, one is a direct water soaking method: corresponding to each level of waterproof grade by using water depth and soaking time, and observing whether water enters the product or not as a judgment standard; the disadvantages are that: electronic products may cause irreparable damage once water enters; the other method is an indirect water soaking method: introducing gas with certain pressure into a closed workpiece cavity, sinking the workpiece into water or other liquid, and observing whether bubbles leak out or not, or coating soapy water on the surface of the workpiece and observing whether bubbles are generated or not; the method has low testing efficiency, the influence of human factors on the leakage testing effect is large, the accuracy is not high, the data cannot be quantized, the tracking and reason judgment are inconvenient, the secondary pollution is caused to the product, the product needs to be dried and wiped, the tiny bubbles are not easy to be perceived by naked eyes under many conditions, and the bubbles are not necessarily generated during the micro leakage.

In recent years, some gas tightness detection instruments mainly inject gas with certain pressure into a sealed workpiece cavity, the gas used for gas tightness test is dry and clean air, nitrogen or other inert gases, the pressure is stabilized after the gas is static for a period of time, then compressed air supply of parts is cut off, and the pressure change is measured after a preset measurement time.

After the blow molding production of the plastic packaging barrel is completed, the air tightness detection needs to be carried out on the bottle blank, the air tightness is detected through pressure change on the premise that a detected workpiece is in a closed state, an opening is formed in the upper end of the bottle blank after the blow molding production is completed, the bottle blank cannot be sealed by the existing air tightness detection equipment, and the air tightness detection cannot be carried out on the bottle blank through a method for detecting the pressure change.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides an air tightness detection case, it has solved the plastic packaging bucket among the prior art and has sealed the bottle base because of there is the opening inconvenient to the bottle base on the bottle base after blow molding production is accomplished, leads to unable normal to carry out the problem that the air tightness detected to the bottle base.

According to the embodiment of the utility model, the air tightness detection box comprises a box body with an opening at the upper end, a top plate hinged with the box body for opening and closing the opening, a sealing component arranged on the top plate for sealing a bottle blank to be detected and an inflation component for inflating the box body; the detection box also comprises a pressure sensor arranged in the box body and a sealing ring arranged on the upper end of the box body and surrounding the opening side line; the sealing assembly comprises a telescopic device installed on the top plate and located on one side, opposite to the opening, of the top plate, the output end of the telescopic device penetrates through the sealing cover fixedly connected with the rear of the top plate, and the output end of the telescopic device is connected with the top plate in a sliding mode.

In the above embodiment, the sealing component installed on the top plate can seal the bottle blank to be detected, the inflation component inflates the interior of the bottle blank to be detected after the bottle blank to be detected is sealed, the air supply is cut off after the inflation reaches a certain amount, whether the bottle blank leaks air can be detected through the pressure sensor installed in the box body of the air tightness detection box, if the pressure value is increased, the air leakage of the bottle blank to be detected is indicated, and if the pressure value is not increased, the air leakage of the bottle blank to be detected is indicated.

Furthermore, a rubber pad is fixedly mounted on the outer surface of one end, far away from the telescopic device, of the sealing cover.

Further, the inflation assembly comprises an inflation tube and an air pump, wherein the inflation tube sequentially penetrates through the top plate and the sealing cover, the inflation tube is in sliding connection with the top plate, the inflation tube is fixedly connected with the sealing cover, and one end, far away from the sealing cover, of the inflation tube is connected with the air pump.

Further, when the top plate covers the opening, the top plate is in pressing contact with the sealing ring.

Further, install on the up end of a box lateral wall and be located the motor and the turning block of opening both sides, the output of motor is connected with the axis of rotation, the axis of rotation is kept away from the one end of motor with the turning block rotates to be connected, the axis of rotation with roof fixed connection.

Furthermore, a positioning ring for positioning and placing the bottle blank to be detected is fixedly arranged on the inner bottom surface of the box body.

Further, when the top plate covers the opening, the positioning ring is located right below the sealing cover.

Further, a display is arranged on the outer surface of the box body, and the pressure sensor is electrically connected with the display.

Compared with the prior art, the utility model discloses following beneficial effect has:

the sealing assembly arranged on the top plate can seal a bottle blank to be detected, the inflation assembly inflates the interior of the bottle blank to be detected after the bottle blank to be detected is sealed, the air supply is cut off after the inflation reaches a certain amount, whether the bottle blank leaks air or not can be detected through the pressure sensor arranged in the box body of the air tightness detection box, if the pressure value is increased, the air leakage of the bottle blank to be detected is indicated, and if the pressure value is not increased, the air leakage of the bottle blank to be detected is indicated.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a seal assembly and an inflation assembly according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of an inner positioning ring and a pressure sensor of the case body according to the embodiment of the present invention;

in the above drawings:

1. a box body; 2. a top plate; 3. a retractor; 4. a sealing cover; 5. an inflation tube; 6. an electromagnetic valve; 7. a motor; 8. rotating the block; 9. a display; 10. positioning rings; 11. a pressure sensor; 12. a seal ring; 13. and (7) a rubber pad.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the embodiment provides an air tightness detection box, which includes a box body 1 with an opening at an upper end, a motor 7 and a rotating block 8 which are arranged on two sides of the opening are installed on an upper end surface of one side wall of the box body 1, an output end of the motor 7 is connected with a rotating shaft, one end of the rotating shaft, which is far away from the motor 7, is rotatably connected with the rotating block 8, and a top plate 2 is fixedly connected to the rotating shaft; the size of the top plate 2 is equal to or larger than the size of the opening of the box body 1, so that the top plate 2 can cover the opening of the box body 1 to seal the box body 1; the motor 7 controls the rotating shaft to rotate, so that the top plate 2 is driven to rotate, and the opening and closing of the air tightness detection box are completed.

As shown in fig. 1 and 2, a sealing ring 12 is arranged on the periphery of the opening edge line at the upper end of the box body 1; when roof 2 lid closes on 1 upper end opening of box, roof 2 and the extrusion formula contact of sealing washer 12, roof 2 extrudees each other with the 12 contact site of sealing washer, produces deformation and extrusion stress to seal 1 opening part of box, prevent that gas from getting into, reinforcing gas tightness detection case's leakproofness.

As shown in fig. 1, 2 and 3, a positioning ring 10 for positioning and placing a bottle blank to be detected is fixedly installed on the inner bottom surface of the box body 1, the opening size of the positioning ring 10 is the same as the size of the lower end of the bottle blank to be detected, when the bottle blank is placed in the box body 1, the lower end of the bottle blank is clamped into the positioning ring 10, the positioning ring 10 positions the lower end of the bottle blank to be detected, and thus the bottle blank can be prevented from falling in the detection process; the sealing assembly is characterized in that a sealing assembly used for sealing an opening at the upper end of a bottle blank is further mounted on the top plate 2, the sealing assembly comprises a telescopic device 3 mounted on the top plate 2, the telescopic device 3 is located on one side of the top plate 2 opposite to the opening, the output end of the telescopic device 3 penetrates through the top plate 2 and then is fixedly connected with a sealing cover 4, a rubber pad 13 is fixedly mounted on the outer surface of one end, away from the telescopic device 3, of the sealing cover 4, the size of the sealing cover 4 is the same as or larger than the size of the opening of the bottle blank to be detected, so that the sealing cover 4 can completely cover the opening of the bottle blank to be detected, and the sealing performance of the bottle blank to be detected is guaranteed; wherein, expansion bend 3 can be the cylinder, can also be electric putter and pneumatic cylinder, expansion bend 3's output and sealed 4 fixed connection of lid, expansion bend 3 the output still with 2 sliding connection of roof, close when 2 lids of roof close when 1 opening of box is last, sealed lid 4 is located directly over the position circle 10, sealed lid 4 can realize reciprocating under expansion bend 3's drive, in its lower extreme card income position circle 10 after the bottle base that awaits measuring is put into

box

1, 3 control sealed lid 4 of expansion bend this moment push down, sealed lid 4 covers completely and closes on the bottle base opening that awaits measuring, at this moment, rubber pad 13 sticiss on the bottle base opening that awaits measuring, further strengthened the sealed of bottle base that awaits measuring for outside air can't get into inside the bottle base that awaits measuring, the inside gas of bottle base that awaits measuring also can't leak.

As shown in fig. 1 and 2, an inflation assembly for inflating the interior of the box body 1 is further mounted on the top plate 2, the inflation assembly includes an inflation tube 5 and an air pump, the inflation tube 5 sequentially penetrates through the top plate 2 and the sealing cover 4, the inflation tube 5 is in sliding connection with the top plate 2, the inflation tube 5 is fixedly connected with the sealing cover 4, the inflation tube 5 is in sliding connection with the top plate 2, so that the inflation tube 5 can move along with the sealing cover 4, one end of the inflation tube 5, which is far away from the sealing cover 4, is connected with an external air pump, and the air pump is used for inflating the interior of a bottle blank to be tested after the sealing cover 4 is sealed and performing air suction after the detection is completed; wherein, the electromagnetic valve 6 is arranged at the joint of the inflation tube 5 and the top plate 2, and can control the opening and closing of the inflation tube 5 and the air flow; the length of the inflation tube 5 extending towards the interior of the box body 1 is limited as follows: when the top plate 2 is covered on the opening of the box body 1 and the sealing cover 4 is pressed down to be abutted against the opening of the bottle blank to be detected, the gas-filled tube 5 cannot collide with the bottle blank to be detected; the gas used for the airtightness detection should be dry, clean air, nitrogen or other inert gas.

As shown in fig. 1 and 3, a display 9 is arranged on the outer surface of the box body 1, a pressure sensor 11 is installed at the bottom in the box body 1, the pressure sensor 11 is electrically connected with the display 9, and the display 9 can display a pressure change value inside the air tightness detection box detected by the pressure sensor 11, so as to judge whether the bottle blank is leaked.

The working principle of the embodiment is as follows:

the motor 7 drives the top plate 2 on the rotating shaft to rotate upwards, so that the air tightness detection box is opened, then a worker puts a bottle blank to be detected into the positioning ring 10 in the box body 1, the motor 7 is controlled to drive the top plate 2 on the rotating shaft to rotate downwards, the air tightness detection box is closed, the output end of the expansion piece 3 drives the sealing cover 4 to press downwards until the sealing cover is abutted against the bottle blank to be detected, the air pump is opened to inflate the bottle blank to be detected, the electromagnetic valve 6 is used for controlling air flow in the process, after the air pressure in the bottle blank to be detected is higher than a standard atmospheric pressure, the air pump is closed, the air pump is kept stand for a period of time, and the pressure change of the pressure sensor 11 is observed on the display 9 so as to judge whether the bottle blank to be detected leaks air or not; after the detection is finished, the internal gas of the bottle blank to be detected is pumped out through the air pump, the sealing cover 4 is lifted by the expansion piece 3, the motor 7 controls the top plate 2 to rotate upwards, the air tightness detection box is opened, and the bottle blank to be detected is taken out.

The embodiment has the following beneficial effects:

1. the sealing assembly arranged on the top plate 2 can seal a bottle blank to be detected, the inflation assembly inflates the interior of the bottle blank to be detected after the bottle blank to be detected is sealed, the gas supply is cut off after the internal gas pressure of the bottle blank to be detected exceeds a standard atmospheric pressure, and whether the bottle blank to be detected leaks gas or not is judged by detecting the pressure change through the pressure sensor 11 arranged in the box body of the gas tightness detection box;

2. the locating ring 10 that the confession bottle base location of bottom fixed mounting was placed in box 1, the size of locating ring 10 opening is the same with the bottle base lower extreme size that awaits measuring, and in its lower extreme card was gone into locating ring 10 after the bottle base was put into box 1, locating ring 10 has carried out the location to the lower extreme of bottle base that awaits measuring promptly, can prevent like this that the bottle base from taking place to empty in the testing process.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. An air tightness detection box is characterized in that: the bottle blank sealing device comprises a box body (1) with an opening at the upper end, a top plate (2) hinged with the box body (1) and used for opening and closing the opening, a sealing component arranged on the top plate (2) and used for sealing a bottle blank to be tested, and an inflating component used for inflating the interior of the box body (1); the pressure sensor (11) is arranged in the box body (1), and the sealing ring (12) is arranged on the upper end of the box body (1) and surrounds the opening edge line;

the sealing assembly comprises a telescopic device (3) installed on the top plate (2), the telescopic device (3) is located on one side, back to back, of the top plate (2) and the opening, the output end of the telescopic device (3) penetrates through a sealing cover (4) fixedly connected with the rear of the top plate (2), and the output end of the telescopic device (3) is connected with the top plate (2) in a sliding mode.

2. The airtightness testing chamber according to claim 1, wherein: and a rubber pad (13) is fixedly arranged on the outer surface of one end, far away from the telescopic device (3), of the sealing cover (4).

3. The airtightness testing chamber according to claim 1, wherein: inflation assembly includes gas tube (5) and air pump, wherein, gas tube (5) run through in proper order roof (2) with sealed lid (4), gas tube (5) with roof (2) sliding connection, gas tube (5) with sealed lid (4) fixed connection, gas tube (5) are kept away from the one end of sealed lid (4) with the air pump is connected.

4. The airtightness testing chamber according to claim 1, wherein: when the top plate (2) covers the opening, the top plate (2) is in extrusion contact with the sealing ring (12).

5. The airtightness testing chamber according to claim 1, wherein: install on the up end of box (1) a lateral wall and be located motor (7) and turning block (8) of opening both sides, the output of motor (7) is connected with the axis of rotation, the axis of rotation is kept away from the one end of motor (7) with turning block (8) rotate and are connected, the axis of rotation with roof (2) fixed connection.

6. The airtightness testing chamber according to claim 1, wherein: and a positioning ring (10) for positioning and placing the bottle blank to be detected is fixedly arranged on the inner bottom surface of the box body (1).

7. The airtightness testing chamber according to claim 6, wherein: when the top plate (2) covers the opening, the positioning ring (10) is positioned right below the sealing cover (4).

8. The airtightness testing chamber according to claim 1, wherein: the outer surface of the box body (1) is provided with a display (9), and the pressure sensor (11) is electrically connected with the display (9).