Portable vacuum leak detector

Abstract

The utility model provides a portable vacuum leak detection machine, comprising a tank body placing structure, the tank body placing structure comprises a placing disc, the middle of the placing disc is provided with a fitting groove, two sides of the inner wall of the fitting groove are provided with installation grooves, the inner wall of each installation groove is rotatably connected with a reset shaft, a flat spiral spring is arranged between the reset shaft and the installation groove, and the flat spiral spring is connected with the reset shaft. A straight rod is arranged at one end of the reset shaft. According to the utility model, through the arrangement of the plurality of fitting grooves, a plurality of cans are respectively placed in the plurality of fitting grooves, so that the vacuum leak detection machine can carry out spot check on the plurality of cans at the same time, when air exists in a vacuum environment, it is determined that the cans leak air, all the cans are placed for secondary single detection, and at the same time, the motor drives the driving gear to rotate; the driving gear drives the placing disc to rotate through the driven gear, the placing disc drives the cans to vibrate, and whether the cans leak air or not in the transportation process is detected.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum leak detectors, and particularly relates to a portable vacuum leak detector. Background Art

[0002] A vacuum leak detector is a device used to detect whether a sealed container leaks. Its principle is based on the vacuum principle. By means of vacuum pumping, the air inside the container is pumped out, and then it is detected outside the container whether there is air leakage in;

[0003] However, the vacuum leak detector can only contact the top of one can at a time, resulting in that only one can can be subjected to vacuum detection each time, and thus the detection efficiency of the vacuum leak detector for cans is relatively low. Content of the Utility Model

[0004] Purpose of the Utility Model

[0005] In view of the above technical problems, the utility model provides a portable vacuum leak detector to solve the technical problems mentioned in the background art.

[0006] Technical Solution

[0007] In order to achieve the above purpose, the technical solution provided by the utility model is a portable vacuum leak detector, which includes a leak detector housing. A placement bin is arranged inside the leak detector housing. A driving gear is rotatably connected to the inner side of the placement bin. A can placement structure is rotatably connected inside the placement bin;

[0008] The can placement structure includes a placement plate. A fitting groove is formed in the middle of the placement plate. Installation grooves are formed on both sides of the inner wall of the fitting groove. A return shaft is rotatably connected to the inner wall of the installation groove. A flat spiral spring is arranged between the return shaft and the installation groove. A straight rod is arranged at one end of the return shaft. A bottom plate is arranged at the bottom of the straight rod. The top of the bottom plate is in contact with the bottom of the can.

[0009] Preferably, a vacuum air pump is arranged inside the leak detector housing. A connecting pipe is arranged between the output end of the vacuum air pump and the placement bin. An electromagnetic valve is arranged on the outer wall of one side of the leak detector housing.

[0010] Preferably, a sealing strip is arranged on the top inner wall of the placement bin. A top cover is arranged on the top of the placement bin. The outer wall of the top cover is in contact with the outer wall of the sealing strip.

[0011] Preferably, rotating shafts are arranged on the outer walls on both sides of the placement plate. The rotating shafts are rotatably connected to the placement bin. A driven gear is arranged on the outer wall of the rotating shaft on one side of the placement plate. The driven gear meshes with the driving gear.

[0012] Preferably, a rubber strip is arranged inside the straight rod, the number of the rubber strips is set to be multiple, and one end of the rubber strip is attached to the outer wall of the can.

[0013] Preferably, mounting threaded holes are formed at four corners of the leak detector housing, suction cups are arranged at the bottoms of the four corners of the leak detector housing, threads are arranged at the upper parts of the mounting threaded holes, the mounting threaded holes are in threaded connection with rotating bolts, sealing gaskets are arranged at the bottoms of the rotating bolts, and the sealing gaskets are in sliding connection with the bottoms of the mounting threaded holes.

[0014] Beneficial effects

[0015] The technical solution provided by the present utility model has the following beneficial effects compared with the prior art:

[0016] By arranging a plurality of fitting grooves in the present utility model, a plurality of cans are respectively placed into the plurality of fitting grooves, so that the vacuum leak detector can simultaneously conduct spot checks on a plurality of cans. When there is air in the vacuum environment, it is determined that the can leaks, and all the cans are placed for secondary single detection. Meanwhile, the motor drives the driving gear to rotate, the driving gear drives the placing disc to rotate through the driven gear, and the placing disc drives the can to vibrate to detect whether the can leaks during transportation;

[0017] By adopting a small vacuum pump, the vacuum leak detector can be carried, and spot checks on the cans on the can production line can be conducted at any time. Meanwhile, the suction cup is in contact with the ground, and the rotating bolt is rotated, so that the rotating bolt drives the sealing gasket to move upward, and a negative pressure is formed in the space between the sealing gasket and the suction cup to fix the vacuum leak detector. Brief description of the drawings

[0018] Figure 1 is a three-dimensional view of the present utility model;

[0019] Figure 2 is a three-dimensional sectional view of the present utility model;

[0020] Figure 3 is a three-dimensional unfolded view of the leak detector housing of the present utility model;

[0021] Figure 4 is a three-dimensional unfolded view of the can placing structure of the present utility model.

[0022] Reference numerals

[0023] 1. Leak detector housing; 2. Vacuum pump; 3. Placement bin; 4. Connecting pipe; 5. Driving gear; 6. Tank placement structure; 601. Placement plate; 602. Rotating shaft; 603. Driven gear; 604. Fitting groove; 605. Installation groove; 606. Reset shaft; 607. Straight rod; 608. Bottom plate; 609. Rubber strip; 7. Sealing strip; 8. Solenoid valve; 9. Installation threaded hole; 10. Suction cup; 11. Rotating bolt; 12. Gasket; 13. Top cover. Detailed implementation manner

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "the other end", "one side", "front part", "both ends", "both sides", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0026] In the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", "provided with", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Now refer to the drawings, the purpose of each figure is only to show some exemplary embodiments and is not intended to limit the present utility model. In each drawing, the same reference numerals represent the same or corresponding parts. The dimensions and ratios in each drawing are only for illustration and should not be construed as a limitation to the present utility model, and these dimensions may be enlarged relative to the actual product.

[0028] Reference Figures 1-4 As shown, a portable vacuum leak detector includes a leak detector housing 1. An accommodation chamber 3 is formed inside the leak detector housing 1. A driving gear 5 is rotatably connected to the inner side of the accommodation chamber 3. A can placement structure 6 is rotatably connected inside the accommodation chamber 3;

[0029] The can placement structure 6 includes a placement tray 601. A fitting groove 604 is formed in the middle of the placement tray 601. Installation grooves 605 are formed on both sides of the inner wall of the fitting groove 604. A return shaft 606 is rotatably connected to the inner wall of the installation groove 605. A flat spiral spring is arranged between the return shaft 606 and the installation groove 605. A straight rod 607 is arranged at one end of the return shaft 606. A bottom plate 608 is arranged at the bottom of the straight rod 607. The top of the bottom plate 608 is in contact with the bottom of the can.

[0030] Further, in the above technical solution, a vacuum pump 2 is arranged inside the leak detector housing 1. A connecting pipe 4 is arranged between the output end of the vacuum pump 2 and the accommodation chamber 3. An electromagnetic valve 8 is arranged on the outer wall of one side of the leak detector housing 1. When the vacuum pump 2 is started, the vacuum pump 2 can pump out the air inside the accommodation chamber 3 to keep the inside of the accommodation chamber 3 in a vacuum state, and when the electromagnetic valve 8 is opened, the outside air can be introduced into the accommodation chamber 3.

[0031] Further, in the above technical solution, a sealing strip 7 is arranged on the top inner wall of the accommodation chamber 3. A top cover 13 is arranged on the top of the accommodation chamber 3. The outer wall of the top cover 13 is in contact with the outer wall of the sealing strip 7. The accommodation chamber 3 can be sealed by the contact between the sealing strip 7 and the top cover 13.

[0032] Further, in the above technical solution, rotating shafts 602 are arranged on the outer walls on both sides of the placement tray 601. The rotating shafts 602 are rotatably connected to the accommodation chamber 3. A driven gear 603 is arranged on the outer wall of the rotating shaft 602 on one side of the placement tray 601. The driven gear 603 meshes with the driving gear 5. Rubber strips 609 are arranged inside the straight rod 607. The number of the rubber strips 609 is multiple. One end of each rubber strip 609 is in contact with the outer wall of the can. When the motor is started, the motor rotates forward and backward to drive the driving gear 5 to rotate forward and backward. The driving gear 5 drives the placement tray 601 to rotate forward and backward through the driven gear 603, so that the placement tray 601 drives the cans placed inside to swing, causing the cans to vibrate.

[0033] Further, in the above technical solution, mounting threaded holes 9 are provided at the four corners of the leak detector housing 1. Suction cups 10 are provided at the bottoms of the four corners of the leak detector housing 1. Threads are provided at the upper parts of the mounting threaded holes 9. The mounting threaded holes 9 are threadedly connected to rotating bolts 11. A sealing gasket 12 is provided at the bottom of the rotating bolt 11. The sealing gasket 12 is slidably connected to the bottom of the mounting threaded hole 9. The suction cups 10 at the bottom of the leak detector housing 1 are brought into contact with the ground. Then the rotating bolt 11 is rotated. The rotating bolt 11 drives the sealing gasket 12 to move upward. Then a negative pressure is formed in the space between the sealing gasket 12 and the suction cup 10, so that the suction cup 10 is connected to the ground.

[0034] Working principle of this utility model:

[0035] Refer to the attached drawings of the specification Figures 1-4 , first, when it is necessary to detect the cans on the production line, the cans on the production line are placed into the inside of the fitting groove 604. Then the flat spiral spring drives the reset shaft 606 to rotate. The reset shaft 606 drives the rubber strip 609 inside the straight rod 607 to fit with the inner wall of the can, and the bottom of the can fits with the top of the bottom plate 608 to fix the can. Then the top cover 13 is installed on the top of the placement bin 3 to seal the placement bin 3. The vacuum air pump 2 is started. The vacuum air pump 2 pumps out the air in the placement bin 3 through the connecting pipe 4. Then the air detection probe detects whether there is air inside the placement bin 3. After there is air inside the placement bin 3, all the cans are taken out for individual detection.

[0036] The above embodiments only represent a certain implementation manner of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model; it should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model; therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.

Claims

1. A portable vacuum leak detector, characterized in that: include A leak detector housing (1), wherein a storage compartment (3) is provided inside the leak detector housing (1), a driving gear (5) is rotatably connected to the inside of the storage compartment (3), and a tank storage structure (6) is rotatably connected to the inside of the storage compartment (3); The can body placement structure (6) comprises a placement plate (601), a fitting groove (604) is provided in the middle of the placement plate (601), mounting grooves (605) are provided on both sides of the inner wall of the fitting groove (604), a reset shaft (606) is rotatably connected to the inner wall of the mounting groove (605), a plane scroll spring is provided between the reset shaft (606) and the mounting groove (605), a straight rod (607) is provided at one end of the reset shaft (606), a bottom plate (608) is provided at the bottom of the straight rod (607), and the top of the bottom plate (608) is fitted with the bottom of the can.

2. A portable vacuum leak detector according to claim 1, characterized in that: A vacuum air pump (2) is arranged inside the leak detector housing (1), a connecting pipe (4) is arranged between the output end of the vacuum air pump (2) and the storage bin (3), and an electromagnetic valve (8) is arranged on the outer wall of one side of the leak detector housing (1).

3. A portable vacuum leak detector according to claim 1, characterized in that: A sealing strip (7) is arranged on the top of the inner wall of the storage bin (3), and a top cover (13) is arranged on the top of the storage bin (3), and the outer wall of the top cover (13) is in contact with the outer wall of the sealing strip (7).

4. The portable vacuum leak detector according to claim 1, characterized in that: The outer walls of both sides of the placement plate (601) are provided with rotating shafts (602), and the rotating shafts (602) are rotatably connected to the placement bin (3). The outer wall of the rotating shaft (602) on one side of the placement plate (601) is provided with a driven gear (603), and the driven gear (603) is meshed with the driving gear (5).

5. The portable vacuum leak detector according to claim 1, characterized in that: A rubber strip (609) is arranged on the inner side of the straight rod (607), and the number of the rubber strips (609) is set to be multiple, and one end of the rubber strip (609) is in contact with the outer wall of the can.

6. The portable vacuum leak detector according to claim 1, characterized in that: The four corners of the leak detector housing (1) are provided with mounting threaded holes (9), the bottom of the four corners of the leak detector housing (1) are provided with suction cups (10), the upper part of the mounting threaded hole (9) is provided with threads, the mounting threaded hole (9) is connected to the rotating bolt (11) through threads, the bottom of the rotating bolt (11) is provided with a sealing gasket (12), and the sealing gasket (12) is slidably connected to the bottom of the mounting threaded hole (9).

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