Air tightness detection device for easy-to-tear cover

Abstract

The utility model relates to the technical field of air tightness detection, in particular to an air tightness detection device for an easy-to-tear cover. In order to solve the problems that no equipment for ejecting a sample is arranged at the bottom of a test cavity, so that a worker is difficult to take out the sample quickly, inconvenience is brought to the worker when the worker carries out an air tightness test on an easy-to-tear cover, and the detection efficiency of the worker is reduced. A downward moving mechanism is started to drive an inserting rod on a sealing plate to be inserted into an inserting hole formed in the surface of the detection tank body and abut against limiting blocks on the two sides of a bearing plate, the limiting blocks are extruded to drive the bearing plate to move towards the bottom of the detection tank body, the sealing plate and the detection tank body are attached under extrusion of the downward moving mechanism, and the sealing effect is improved; after the detection is completed and the insertion rod on the sealing plate is pulled out of the detection tank body, the bearing plate is driven to move upwards under the tension of the spring, so that a detected product is ejected out, the taking is convenient, the structure is simple, the use effect is good, and the detection efficiency of workers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to an air tightness detection device for an easy-tear cover. Background Art

[0002] Easy-tear lids are becoming increasingly popular. Made from a bonded aluminum-plastic composite film and a tinplate lid ring, the film offers high barrier properties, while the tinplate lid ring is coated with an anti-rust coating. This combination of features ensures a superior seal for metal packaging containers. Consequently, these easy-tear lids offer significant advantages over traditional metal can lids. Furthermore, traditional metal can lids are difficult to open, often requiring tools, which is time-consuming, labor-intensive, and inconvenient. The aluminum-plastic composite film seal of easy-tear lids is easier to open, less prone to injury, and more convenient for consumers. Currently, easy-tear lids have largely replaced most metal lids and are widely used in metal cans for dry goods such as milk powder, protein powder, chicken bouillon, seasonings, dried fruit, and tea.

[0003] Existing vacuum decay leak testers usually include a control panel, a vacuum pump, a housing, a test chamber and a sealing cover. When in use, the easy-to-tear cover is sampled, and then the staff puts the sample to be tested into the test chamber, and then uses the sealing cover to seal the test chamber. The test chamber is then evacuated to a vacuum, so that a pressure difference is formed inside and outside the sample. Under the action of pressure, the gas in the sample diffuses into the test chamber through the leak hole, and the relationship between the time and pressure changes is detected by sensor technology and compared with the standard value to determine whether the sample is leaking. After the test, since there is no equipment to push the sample out from the bottom of the existing test chamber, the staff may need to use tools to remove the sample, which makes it difficult for the staff to quickly remove the sample, which brings inconvenience to the staff when performing airtightness testing on the easy-to-tear cover and reduces the staff's detection efficiency. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In order to solve the problem that there is no equipment to push out the sample at the bottom of the test chamber, it is difficult for the staff to quickly remove the sample, which brings inconvenience to the staff when performing air tightness testing on the easy-tear cover and reduces the staff's detection efficiency.

[0006] (2) Technical solution

[0007] The technical solution of the utility model is: an easy-to-tear cover airtightness detection device, including a detection device body, including a base, a support frame, a vacuum airtightness detection instrument, a connecting pipe, a downward movement mechanism and an automatic rebound component, the base is arranged on the bottom surface of the detection device body, the surface of the base is installed with the support frame, the inner surface of the support frame is installed with the downward movement mechanism, the surface of the base is located below the extended end of the downward movement mechanism and the automatic rebound component is arranged, the surface of the support frame is installed with the vacuum airtightness detection instrument, the surface of the vacuum airtightness detection instrument is installed with a connecting pipe, the end of the connecting pipe away from the vacuum airtightness detection instrument is connected to the automatic rebound component, and the detection tank body is connected to the vacuum airtightness detection instrument through the connecting pipe. The instrument is connected for testing, and the can to be tested is placed on the supporting plate set in the testing tank body. By starting the downward mechanism, the insertion rod on the sealing plate is driven to be inserted into the insertion hole opened on the surface of the testing tank body, and abutted with the limit blocks on both sides of the supporting plate. The limiting blocks are squeezed to drive the supporting plate to move toward the bottom of the testing tank body. The sealing plate and the testing tank body are fitted together under the extrusion of the downward mechanism to improve the sealing effect and perform the air tightness test on the easy-to-tear cover. When the test is completed, the insertion rod on the sealing plate is pulled out from the testing tank body, and the supporting plate is driven to move upward under the tension of the spring, thereby realizing the ejection of the tested product. The product is convenient to take out, has a simple structure, and has a good use effect, thereby improving the testing efficiency of the staff.

[0008] Furthermore, the automatic rebound component includes a detection tank body, a sealing plate, a plug rod, a socket, a supporting plate, a limit block, a limit groove and a spring. The surface of the base is located below the protruding end of the lower moving mechanism and is fixedly installed with the detection tank body. The protruding end of the lower moving mechanism is fixedly installed with a sealing plate, and the sealing plate abuts against the detection tank body. A supporting plate is provided in the detection tank body, and two limit blocks are symmetrically installed on the side surface of the supporting plate. A limit groove adapted to the limit block is provided on the inner wall of the detection tank body, and the limit block is clamped in the limit groove. The supporting plate slides in the detection tank body through the limit block and the limit groove. A spring is installed in the limit groove provided in the detection tank body, and the other end of the spring is connected to the limit block. Two plug rods are symmetrically installed on the bottom surface of the sealing plate. The plug rods are inserted into the socket provided on the surface of the detection tank body, and one end of the plug rod is connected to the limit block. The sealing plate is pressed against the bottom of the test tank body, and the sealing plate and the test tank body are fitted together under the pressure of the downward movement mechanism to improve the sealing effect and perform the air tightness inspection on the easy-to-tear cover. When the inspection is completed, the rod on the sealing plate is pulled out of the test tank body, and the support plate is driven to move upward under the tension of the spring, thereby realizing the ejection of the test product. The test product is convenient to take, simple in structure, and good in use, thereby improving the inspection efficiency of the staff.

[0009] Furthermore, the jack is adapted to the insertion rod, thereby improving the docking stability between the sealing plate and the detection tank body.

[0010] Furthermore, a sealing rubber layer is provided on the bottom surface of the sealing plate to improve the fit between the sealing plate and the detection tank body, thereby achieving a good sealing effect.

[0011] Furthermore, a plug with a conical structure with one end larger than the other is installed on the bottom surface of the sealing plate. The plug is inserted into the inner wall of one end of the detection tank body. The plug is made of rubber material, which further improves the sealing effect between the sealing plate and the detection tank body.

[0012] Furthermore, a sealing ring is installed on the outside of the sealing plate, and the inner ring of the sealing ring is adapted to the outer ring wall of the detection tank body. By installing a sealing ring on the outside of the sealing plate, the sealing ring fits the outer ring wall of the detection tank body, thereby further improving the sealing performance of the easy-to-tear cover airtightness test and making the test accuracy high.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the beneficial effect of the present invention is that: when the design is used, the detection tank body is connected to the vacuum air tightness detection instrument through a connecting tube for detection, and the tank to be detected is placed on the support plate arranged in the detection tank body, and the downward movement mechanism is activated to drive the insertion rod on the sealing plate to be inserted into the insertion hole opened on the surface of the detection tank body, and abut against the limit blocks on both sides of the support plate, and the squeeze limit blocks drive the support plate to move toward the bottom of the detection tank body, and the sealing plate and the detection tank body are fitted together under the extrusion of the downward movement mechanism to improve the sealing effect, and the air tightness of the easy-to-tear cover is detected. When the detection is completed, the insertion rod on the sealing plate is pulled out of the detection tank body, and the support plate is driven to move upward under the tension of the spring, thereby realizing the ejection of the detection product, which is convenient to take, simple in structure, and has good use effect, thereby improving the detection efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 What is shown is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 Shown is a front view of the automatic rebound component of the present invention;

[0017] Figure 3 What is shown is a left view of the overall structure of the utility model;

[0018] Figure 4 The diagram showing the internal structure of the detection tank in this utility model is shown;

[0019] Figure 5 Shown is an internal cross-sectional view of the detection tank in the present utility model;

[0020] Figure 6 The utility model is shown Figure 5 A magnified view of the structure in the middle.

[0021] Explanation of the accompanying reference numerals: 1-base, 2-support frame, 3-vacuum air tightness testing instrument, 4-connecting pipe, 5-downward movement mechanism, 6-automatic rebound assembly, 61-detection tank body, 62-sealing plate, 63-insertion rod, 64-insertion hole, 65-support plate, 66-limiting block, 67-limiting groove, 68-spring, 69-plug, 610-sealing ring. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Example 1:

[0024] See also Figure 1-6The utility model provides an embodiment: an airtightness detection device for an easy-to-tear cover, comprising a detection device body, including a base 1, a support frame 2, a vacuum airtightness detection instrument 3, a connecting pipe 4, a downward movement mechanism 5 and an automatic rebound component 6. The base 1 is arranged on the bottom surface of the detection device body, the support frame 2 is installed on the surface of the base 1, the downward movement mechanism 5 is installed on the inner surface of the support frame 2, the surface of the base 1 is located below the protruding end of the downward movement mechanism 5 and is provided with an automatic rebound component 6, the vacuum airtightness detection instrument 3 is installed on the surface of the support frame 2, the connecting pipe 4 is installed on the surface of the vacuum airtightness detection instrument 3, and the connecting pipe 4 is away from the vacuum airtightness detection instrument One end of the device 3 is connected to the automatic rebound component 6, which includes a detection tank body 61, a sealing plate 62, an insertion rod 63, a socket 64, a supporting plate 65, a limit block 66, a limit groove 67 and a spring 68. The surface of the base 1 is located below the extended end of the lower movement mechanism 5 and is fixedly installed with the detection tank body 61. The extended end of the lower movement mechanism 5 is fixedly installed with a sealing plate 62, and the sealing plate 62 abuts against the detection tank body 61. A supporting plate 65 is provided in the detection tank body 61, and two limit blocks 66 are symmetrically installed on the side surface of the supporting plate 65. A limit groove 67 adapted to the limit block 66 is opened on the inner wall of the detection tank body 61, and the limit block 66 is engaged In the limit groove 67, the supporting plate 65 slides in the detection tank body 61 through the limit block 66 and the limit groove 67. A spring 68 is installed in the limit groove 67 opened in the detection tank body 61, and the other end of the spring 68 is connected to the limit block 66. Two insertion rods 63 are symmetrically installed on the bottom surface of the sealing plate 62. The insertion rod 63 is inserted into the insertion hole 64 opened on the surface of the detection tank body 61. One end of the insertion rod 63 abuts against the limit block 66. The detection tank body 61 is connected to the vacuum air tightness detection instrument 3 through the connecting pipe for detection. The tank to be tested is placed on the supporting plate 65 set in the detection tank body 61, and the sealing is driven by starting the downward movement mechanism 5. The insertion rod 63 on the sealing plate 62 is inserted into the insertion hole 64 opened on the surface of the detection tank body 61, and abuts against the limit blocks 66 on both sides of the supporting plate 65. The extrusion limit blocks 66 drive the supporting plate 65 to move toward the bottom of the detection tank body 61. The sealing plate 62 and the detection tank body 61 are fitted together under the extrusion of the downward movement mechanism 5, thereby improving the sealing effect and performing the air tightness inspection of the easy-to-tear cover. When the inspection is completed, the insertion rod 63 on the sealing plate 62 is pulled out from the detection tank body 61, and the supporting plate 65 is driven to move upward under the tension of the spring 68, thereby realizing the ejection of the inspection product. It is convenient to take, has a simple structure, good use effect, and improves the inspection efficiency of the staff.

[0025] The insertion hole 64 is adapted to the insertion rod 63 to improve the docking stability between the sealing plate 62 and the detection tank body 61 .

[0026] A sealing rubber layer is provided on the bottom surface of the sealing plate 62 to improve the fit between the sealing plate 62 and the detection tank body 61 and achieve a good sealing effect.

[0027] Example 2:

[0028] See also Figure 1-6 In this embodiment, a plug 69 with a conical structure with one end larger than the other end is installed on the bottom surface of the sealing plate 62. The plug 69 is inserted into the inner wall of one end of the detection tank body 61. The plug 69 is made of rubber material, which further improves the sealing effect between the sealing plate 62 and the detection tank body 61. A sealing ring 610 is installed on the outside of the sealing plate 62. The inner ring of the sealing ring 610 is adapted to the outer ring wall of the detection tank body 61. By adding the sealing ring 610 to the outside of the sealing plate 62, the sealing ring 610 fits the outer ring wall of the detection tank body 61, which further improves the sealing performance of the easy-tear cover airtightness test, so that the detection accuracy is high.

[0029] Through the above steps, when in use, the detection tank body 61 is connected to the vacuum air tightness detection instrument 3 through the connecting pipe for detection, the tank to be detected is placed on the supporting plate 65 set in the detection tank body 61, and the insertion rod 63 on the sealing plate 62 is driven by the downward movement mechanism 5 to be inserted into the insertion hole 64 opened on the surface of the detection tank body 61, and abutted against the limit blocks 66 on both sides of the supporting plate 65, and the limit blocks 66 are squeezed to drive the supporting plate 65 to move to the bottom of the detection tank body 61, and the sealing plate 62 and the detection tank body 61 are squeezed by the downward movement mechanism 5. Press down to fit, improve the sealing effect, and perform the air tightness test on the easy-tear cover. After the test is completed, the insertion rod 63 on the sealing plate 62 is pulled out from the test tank body 61, and the support plate 65 is driven to move upward under the tension of the spring 68, so as to realize the ejection of the test product. It is convenient to take, simple in structure, and has good use effect, which improves the detection efficiency of the staff. In addition, with the plug 69 and the sealing ring 610, the sealing ring 610 fits with the outer ring wall of the test tank body 61, further improving the sealing of the easy-tear cover air tightness test, so that the detection accuracy is high.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A device for detecting air tightness of an easy-tear cover, comprising a detection device body, characterized in that: The invention comprises a base (1), a support frame (2), a vacuum airtightness detection instrument (3), a connecting pipe (4), a downward movement mechanism (5) and an automatic rebound component (6); the base (1) is arranged on the bottom surface of the detection device body; the surface of the base (1) is mounted with the support frame (2); the inner surface of the support frame (2) is mounted with the downward movement mechanism (5); the surface of the base (1) is located below the protruding end of the downward movement mechanism (5) and is equipped with an automatic rebound component (6); the surface of the support frame (2) is mounted with the vacuum airtightness detection instrument (3); the surface of the vacuum airtightness detection instrument (3) is mounted with the connecting pipe (4); and the end of the connecting pipe (4) away from the vacuum airtightness detection instrument (3) is connected to the automatic rebound component (6).

2. The air tightness detection device for an easy-tear cover according to claim 1, characterized in that: The automatic rebound component (6) includes a detection tank body (61), a sealing plate (62), an insertion rod (63), a socket (64), a supporting plate (65), a limit block (66), a limit groove (67) and a spring (68). The surface of the base (1) is located below the extended end of the downward movement mechanism (5) and is fixedly installed with the detection tank body (61). The extended end of the downward movement mechanism (5) is fixedly installed with a sealing plate (62). The sealing plate (62) is in contact with the detection tank body (61). A supporting plate (65) is provided in the detection tank body (61). Two limit blocks (66) are symmetrically installed on the side surface of the supporting plate (65). The detection tank body (61) The inner wall is provided with a limiting groove (67) adapted to the limiting block (66), the limiting block (66) is snapped into the limiting groove (67), the supporting plate (65) slides in the detection tank body (61) through the limiting block (66) and the limiting groove (67), a spring (68) is installed in the limiting groove (67) opened in the detection tank body (61), the other end of the spring (68) is connected to the limiting block (66), and two insertion rods (63) are symmetrically installed on the bottom surface of the sealing plate (62), the insertion rods (63) are inserted into the jacks (64) opened on the surface of the detection tank body (61), and one end of the insertion rod (63) is in contact with the limiting block (66).

3. The air tightness detection device for an easy-tear cover according to claim 2, characterized in that: The insertion hole (64) is adapted to the insertion rod (63).

4. The air tightness detection device for an easy-tear cover according to claim 2, wherein: The bottom surface of the sealing plate (62) is provided with a sealing rubber layer.

5. The air tightness detection device for an easy-tear cover according to claim 2, characterized in that: A plug (69) having a conical structure with one end larger than the other is installed on the bottom surface of the sealing plate (62). The plug (69) is plugged into the inner wall of one end of the detection tank (61). The plug (69) is made of rubber.

6. The air tightness detection device for an easy-tear cover according to claim 2, characterized in that: A sealing ring (610) is installed on the outer side of the sealing plate (62), and the inner ring of the sealing ring (610) is adapted to the outer ring wall of the detection tank body (61).

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