Sealing airtightness detection device for sealing tank

Abstract

The invention relates to a sealing airtightness detection device of a sealing tank, and belongs to the technical field of sealing airtightness detection of the sealing tank, the sealing airtightness detection device comprises a detection box, an electric telescopic rod used for extrusion sealing is fixedly installed at the center of the upper portion of the inner wall of the detection box, and a sealing assembly used for extrusion sealing is fixedly installed at the output end of the electric telescopic rod; a supporting groove block used for supporting is arranged on the lower side of the inner wall of the detection box and located below the sealing assembly, and a storage groove block used for storing unqualified sealing tanks is fixedly installed on the front side of the supporting groove block and located in front of the detection box. The sealing tank detection device can detect the sealing tank, can ensure that the compliant sealing tank is in a normal installation position, can more conveniently distinguish non-compliant products in the sealing tank detection process, reduces the workload of operators, directly kicks out the sealing tank with non-compliant airtightness, and can also improve the sealing detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of sealing airtightness detection of sealed cans, in particular to a sealing airtightness detection device for sealed cans. Background Art

[0002] The airtightness test of sealed cans is a key step to ensure the sealing performance of sealed cans. In order to prevent the internal stored products from deteriorating or leaking during the use of sealed cans and maintain the stability of the internal environment, it is necessary to conduct airtightness testing of sealed cans after the processing of sealed cans is completed.

[0003] The traditional airtightness detection device of sealed cans cannot automatically kick out non-compliant products during operation. Therefore, after the airtightness detection of the sealed cans is completed, the operator needs to judge the airtightness detection effect of the sealed cans by observation. In addition, the products with non-compliant sealing performance need to be manually sorted and stored. This not only increases the workload of the operator's observation and judgment, but also affects the efficiency of the sealed can detection process. In order to solve the above problems, a sealing airtightness detection device for a sealed can is needed. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a sealed can airtightness detection device, which solves the problem that traditional devices cannot automatically kick out non-compliant products separately, which may increase the operator's observation and judgment workload and affect the efficiency of the sealed can detection process.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a sealed can airtightness detection device, comprising a detection box, wherein an electric telescopic rod for extrusion sealing is fixedly mounted at the center above the inner wall of the detection box, and a sealing assembly for extrusion sealing is fixedly mounted at the output end of the electric telescopic rod, and a support slot block for support is provided on the lower side of the inner wall of the detection box, below the sealing assembly, and a storage slot block for storing unqualified sealed cans is fixedly mounted on the front side of the support slot block; An ejection cavity for ejection is provided on the lower side of the inner wall of the detection box, and a kick-out assembly for kicking out unqualified sealed cans is provided on the lower side of the inner wall of the ejection cavity, and a pressurization cavity for gas pressurization detection is provided on the right side behind the inner wall of the detection box, and a starting assembly for pressure start-up is provided on the lower side of the inner wall of the pressurization cavity.

[0006] Furthermore, the sealing assembly includes a fixed block fixedly installed at the output end of the electric telescopic rod, and the bottom surface of the fixed block is located above the supporting slot block and is fixedly installed with a sealing gasket for sealing, and the sealing gasket includes a cylindrical sealing block and a frustum sealing block fixed on the bottom surface of the cylindrical sealing block, and the left and right surfaces of the fixed block are slidably installed with guide vertical rods for guiding through fixed limiting hole blocks, and the upper and lower ends of the two guide vertical rods are respectively fixedly connected to the upper and lower sides of the inner wall of the detection box.

[0007] Furthermore, the kick-out assembly includes a retractable rod body fixedly installed at the center below the inner wall of the ejection cavity, and a storage slot for storage is provided on the rear side of the inner wall of the detection box behind the support slot block, and an L-shaped rotating rod for rotating extrusion is installed on the lower side of the inner wall of the storage slot through two fixed connecting blocks, and a pushing block for pushing is fixedly installed on the top surface of the L-shaped rotating rod, and the back of the L-shaped rotating rod is fixedly connected to the back side of the inner wall of the storage slot by a fixed tension spring.

[0008] Furthermore, the starting assembly includes a movable block slidably mounted on the lower side of the inner wall of the pressurized chamber, and the four corners of the bottom surface of the movable block are fixedly connected to the lower side of the inner wall of the pressurized chamber by fixedly mounted damping springs, and the bottom surface of the movable block is provided with a connecting assembly for connecting the retraction rod body, an air pump for gas delivery is fixedly mounted on the left side above the top surface of the detection box, and the output end of the air pump is fixedly connected to a first connecting pipe for gas delivery, and the pipe wall of the first connecting pipe is provided with an electromagnetic valve for switch control, and a second connecting pipe for connection is fixedly mounted on the front side of the inner wall of the pressurized chamber, and a pressure gauge for air pressure feedback is fixedly mounted on the upper side of the inner wall of the pressurized chamber.

[0009] Furthermore, the connecting assembly includes a first tooth plate fixedly mounted on the bottom surface of the movable block, and the surface of the first tooth plate is engaged with a second tooth plate for movement through meshing gears, and the lower side of the inner wall of the pressurized chamber is located below the second tooth plate and is provided with a self-resetting button switch for starting the retraction rod body.

[0010] Furthermore, the support trough block is a circular trough block structure, and the inner wall of the support trough block is circular. The storage trough block includes a collecting trough body and an unfolded inclined plate fixed on the peripheral side of the top surface of the collecting trough body, and the bottom surface of the collecting trough body is inclined, with the inclination direction being higher at the back and lower at the front. A connecting groove is provided on the rear side of the inner wall of the collecting trough body below the support trough block, and the length of the connecting groove is greater than 1.5 times the diameter of the support trough block.

[0011] Furthermore, the retractable rod body is a normally-extended electric telescopic rod structure, and the output end of the retractable rod body passes through the upper side of the inner wall of the ejection cavity and is fixedly connected to the bottom surface of the support slot block. A number of limit vertical rods for sliding limitation are fixedly installed on the circumference of the retractable rod body below the inner wall of the ejection cavity, and the upper ends of the number of limit vertical rods all pass through the upper side of the inner wall of the ejection cavity and the bottom surface of the support slot block, extending to the interior of the support slot block.

[0012] Furthermore, the lower side of the inner wall of the storage tank is inclined, and the angle θ between the lower side of the inner wall of the storage tank and the lower side of the inner wall of the detection box is set, and 30°θ≤45°, the pushing block is an arc-shaped block structure, and the width of the pushing block is less than 0.8 times the width of the storage tank, and the front of the L-shaped rotating rod is in contact with the bottom surface of the support slot block.

[0013] Furthermore, the lower end of the first connecting tube passes through the top surface of the detection box and extends to the inner wall of the pressurized chamber, and the front end of the second connecting tube passes through the top surface of the sealing assembly and extends to the bottom surface of the sealing assembly.

[0014] Furthermore, the front and rear sides of the inner wall of the pressurized chamber are provided with limit grooves for limiting, and the inner walls of the two limit grooves are fixedly connected to the opposite sides of the second tooth plate through sliding limit blocks, and the opposite sides of the second tooth plate are respectively in contact with the front and rear sides of the inner wall of the pressurized chamber, and the inner wall of the gear is rotatably connected to the inner wall of the pressurized chamber through a fixed connecting shaft.

[0015] Compared with the prior art, the present invention provides a sealing airtightness detection device for sealed cans, which has the following beneficial effects: 1. The device can automatically kick out sealed cans that do not meet the sealing requirements, and ensure that compliant sealed cans are in the normal installation position. In this way, non-compliant products can be distinguished more conveniently during the sealing can inspection process, reducing the workload of operators. Directly kicking out sealed cans that do not meet the airtightness requirements can also increase the efficiency of sealing inspection.

[0016] 2. The device utilizes the connecting groove provided on the collecting tank body to ensure that the sealed can enters the collecting tank body more easily during the falling process, and the problem of the sealed can being stuck on one side of the collecting tank body will not occur, thereby ensuring the falling effect of the sealed can.

[0017] 3. The device has a retractable rod structure, which ensures that the retractable rod will drive the support slot block to retract after it is started, thereby ensuring better ejection of non-compliant sealed cans and ensuring the device's effectiveness in removing non-compliant products.

[0018] 4. The limiting groove and limiting block structure in the pressurized chamber of the device can ensure the stability of the second tooth plate during operation, and will not cause the second tooth plate to get stuck during operation, thereby ensuring the normal use function of the structure in the device, and the connecting shaft is to better connect the gear to the tooth plate structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front perspective view of the present invention as a whole; Figure 2 This is a perspective view of the storage tank block of the present invention; Figure 3 It is a vertical sectional perspective view of the present invention as a whole; Figure 4 It is a rear vertical sectional perspective view of the entire invention; Figure 5 The structure of the present invention Figure 4 A schematic diagram of the enlarged structure shown; Figure 6 This is a left-side vertical sectional perspective view of the detection box of the present invention; Figure 7 This is a perspective view of the L-shaped rotating rod of the present invention; Figure 8 This is an expanded perspective view of the connection assembly of the present invention; Figure 9 This is an expanded perspective view of the sealing gasket of the present invention; Figure 10 This is a three-dimensional diagram of the storage tank block of the present invention.

[0020] Figure: 1, detection box; 2, electric telescopic rod; 3, sealing assembly; 301, fixing block; 302, sealing gasket; 3021, cylindrical sealing block; 3022, truncated cone sealing block; 303, limiting hole block; 304, guide vertical rod; 4, supporting slot block; 5, storage slot block; 501, collection slot body; 502, expansion ramp; 503, connecting slot; 6, ejection cavity; 7, kick-out assembly; 701, retracting rod body; 702, limiting vertical rod; 703, storage slot; 704, connecting block; 705 , L-shaped rotating rod; 706, pushing block; 707, tension spring; 8, pressurizing chamber; 9, starting assembly; 901, movable block; 902, damping spring; 903, air pump; 904, first connecting pipe; 905, solenoid valve; 906, second connecting pipe; 907, pressure gauge; 10, connecting assembly; 1001, first gear plate; 1002, gear; 1003, second gear plate; 1004, reset button switch; 1005, limit slot; 1006, limit block; 1007, connecting shaft. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1 to 10 In this embodiment, a sealed can airtightness detection device includes a detection box 1. An electric telescopic rod 2 for extrusion sealing is fixedly installed at the center above the inner wall of the detection box 1, and a sealing component 3 for extrusion sealing is fixedly installed at the output end of the electric telescopic rod 2. A support groove block 4 for support is provided on the lower side of the inner wall of the detection box 1 below the sealing component 3. The support groove block 4 is a circular groove block structure, and the inner wall of the support groove block 4 is circular. A storage groove block 5 for storing unqualified sealed cans is fixedly installed on the front side of the support groove block 4 in front of the detection box 1. The storage groove block 5 includes a collection groove body 501 The expanded inclined plate 502 is fixed to the circumferential side of the top surface of the collecting tank body 501, and the bottom surface of the collecting tank body 501 is inclined, with the inclination direction being higher at the back and lower at the front. The rear side of the inner wall of the collecting tank body 501 is located below the supporting tank block 4 and is provided with a connecting groove 503. The length of the connecting groove 503 is greater than 1.5 times the diameter of the supporting tank block 4. The expanded inclined plate 502 in the storage tank block 5 can prevent the sealed cans from falling, and the inclined setting of the inner wall of the collecting tank body 501 can also ensure more storage of the sealed cans. If the sealed cans fall through the supporting tank block 4 into the storage tank block 5, the surface of the sealed cans will not be damaged because the falling height is relatively low. A ejection cavity 6 for ejection is provided on the lower side of the inner wall of the detection box 1, and a number of limiting vertical rods 702 for sliding limitation are fixedly installed on the circumference of the retracting rod body 701 below the inner wall of the ejection cavity 6, and the upper ends of the number of limiting vertical rods 702 all pass through the upper side of the inner wall of the ejection cavity 6 and the bottom surface of the support slot block 4, extending to the interior of the support slot block 4. The limiting vertical rods 702 can not only limit the support slot block 4, but also support non-compliant sealed cans, making it convenient to push and collect them, and a kick-out component 7 for kicking out unqualified sealed cans is provided on the lower side of the inner wall of the ejection cavity 6, and a pressurization cavity 8 for gas pressurization detection is provided on the right side of the rear inner wall of the detection box 1, and a starting component 9 for pressure start-up is provided on the lower side of the inner wall of the pressurization cavity 8.

[0023] Among them, the sealing assembly 3 includes a fixed block 301 fixedly installed at the output end of the electric telescopic rod 2, and the bottom surface of the fixed block 301 is located above the support groove block 4 and is fixedly installed with a sealing gasket 302 for sealing, and the sealing gasket 302 includes a cylindrical sealing block 3021 and a frustum sealing block 3022 fixed to the bottom surface of the cylindrical sealing block 3021. The left and right sides of the fixed block 301 are slidably installed with guide vertical rods 304 for guidance through fixed limiting hole blocks 303, and the upper and lower ends of the two guide vertical rods 304 are respectively fixedly connected to the upper and lower sides of the inner wall of the detection box 1. The sealing assembly 3 in this device cooperates with the pressure gauge 907 in the starting assembly 9 to work, and can detect the air pressure generated inside the sealed tank, and the pressure value response of the pressure gauge 907 is used to ensure the pressure sensing display effect of the sealed tank detection process. By combining the sealing assembly 3 and the starting assembly 7, a sensing effect suitable for different tank mouth pressures can be formed, because the core of the sensing effect of the traditional pressure sensor is the response to the pressure value.

[0024] Among them, the kick-out component 7 includes a retractable rod body 701 fixedly installed at the center below the inner wall of the ejection cavity 6. The retractable rod body 701 is a normally extended electric telescopic rod structure, and the output end of the retractable rod body 701 passes through the upper side of the inner wall of the ejection cavity 6 and is fixedly connected to the bottom surface of the support slot block 4. The rear side of the inner wall of the detection box 1 is located behind the support slot block 4 and is provided with a storage slot 703 for storage. The lower side of the inner wall of the storage slot 703 is inclined, and the angle between the lower side of the inner wall of the storage slot 703 and the lower side of the inner wall of the detection box 1 is θ, and 30°θ≤45°. The inclined storage slot 703 can better It is suitable for the rotation of the L-shaped rotating rod 705, and the lower side of the inner wall of the storage groove 703 is installed with an L-shaped rotating rod 705 for rotating extrusion through two fixed connecting blocks 704, and the top surface of the L-shaped rotating rod 705 is fixedly installed with a pushing block 706 for pushing. The pushing block 706 is an arc-shaped block structure, and the width of the pushing block 706 is less than 0.8 times the width of the storage groove 703. The front of the L-shaped rotating rod 705 contacts the bottom surface of the supporting groove block 4, and the back of the L-shaped rotating rod 705 is fixedly connected to the back side of the inner wall of the storage groove 703 through a fixed tension spring 707.

[0025] Among them, the starting component 9 includes a movable block 901 slidably mounted on the lower side of the inner wall of the pressurized chamber 8, and the four corners of the bottom surface of the movable block 901 are fixedly connected to the lower side of the inner wall of the pressurized chamber 8 by fixedly mounted damping springs 902, and the bottom surface of the movable block 901 is provided with a connecting component 10 for connecting the retraction rod body 701, and an air pump 903 for gas delivery is fixedly mounted on the left side above the top surface of the detection box 1, and the output end of the air pump 903 is fixedly connected to a first connecting pipe 904 for gas delivery, and the pipe wall of the first connecting pipe 904 is provided with an electromagnetic valve 905 for switch control, and a second connecting pipe 906 for connection is fixedly mounted on the front side of the inner wall of the pressurized chamber 8, the lower end of the first connecting pipe 904 passes through the top surface of the detection box 1 and extends to the inner wall of the pressurized chamber 8, the front end of the second connecting pipe 906 passes through the top surface of the sealing component 3 and extends to the bottom surface of the sealing component 3, and a pressure gauge 907 for air pressure feedback is fixedly mounted on the upper side of the inner wall of the pressurized chamber 8.

[0026] Among them, the connecting component 10 includes a first tooth plate 1001 fixedly mounted on the bottom surface of the movable block 901, and the surface of the first tooth plate 1001 is meshed with a second tooth plate 1003 for movement through an engaged gear 1002, and the opposite sides of the second tooth plate 1003 are respectively in contact with the front and rear sides of the inner wall of the pressurized chamber 8, and the inner wall of the gear 1002 is rotatably connected to the inner wall of the pressurized chamber 8 through a fixed connecting shaft 1007, and the lower side of the inner wall of the pressurized chamber 8 is located below the second tooth plate 1003 and is provided with a self-resetting button switch 1004 for starting the retraction rod body 701, and the front and rear sides of the inner wall of the pressurized chamber 8 are provided with limit grooves 1005 for limiting, and the inner walls of the two limit grooves 1005 are fixedly connected to the opposite sides of the second tooth plate 1003 through sliding limit blocks 1006.

[0027] The working principle of the above embodiment is: Before using the device, the operator needs to place the sealed can to be tested into the storage tank block 5. Due to the usage characteristics of the retractable rod body 701, the storage tank block 5 can be pushed to the highest position. The retractable rod body 701 has a certain support, which can be used for the extrusion force of the electric telescopic rod 2, and can ensure the extrusion stability of the sealed can. In this way, the electric telescopic rod 2 can squeeze and fix the product in the storage tank block 5 through the sealing assembly 3. Because the sealing assembly 3 adopts the structure of the sealing gasket 302, which is composed of a frustum sealing block 3022 and a cylindrical sealing block 3021, it can form a mortise and tenon effect with the can mouth of the sealed can, which can ensure the sealing effect of the electric telescopic rod 2 squeezing the sealed can. When the sealing tank is fixed, the solenoid valve 905 is opened, and the air pump 903 will deliver gas to the pressurized chamber 8 through the first connecting pipe 904. In this way, the gas in the pressurized chamber 8 will be introduced into the sealing tank under the sealing component 3 through the second connecting pipe 906. In this way, the air pressure state in the sealing tank can be known through the pressure feedback of the pressure gauge 907. When the air pressure in the sealing tank reaches the detected air pressure value, the solenoid valve 905 is closed to ensure that the sealed tank contains compressed gas. Generally, the air pressure introduced into the sealed tank is 10 When the pressure is increased, the second gear plate 1003 moves upward, and the second gear plate 1003 moves away from the reset button switch 1004. Before the pressurization of the pressurized chamber 8, the reset button switch 1004 is in a power-off state. In this way, even if the movable block 901 is not pressurized and the second gear plate 1003 squeezes the reset button switch 1004, the reset button switch 1004 will not start the retraction of the rod body 701. The reset button switch 1004 of the device is connected to the retraction rod body 701 through a connecting wire to ensure that the reset button switch 1004 controls the retraction rod body 701. When the pressurization is over, the power supply effect of the reset button switch 1004 is restored. At this time, the composite second gear plate 1003 squeezes the reset button switch 1004 to start the retraction of the retraction rod body 701. If the sealing effect of the sealing tank is good after pressurization, the pressurizing chamber 8 and the sealing tank are in a connected state, so that the pressure will not be lost too much, so the reset button switch 1004 will not be pressed to start, thereby ensuring that the tested sealing tank is airtight and qualified. When the sealing tank has cracks or the sealing effect is poor, the pressure in the pressurizing chamber 8 will be reduced. When it is reduced to a certain level, the elastic force of several damping springs 902 will push the movable block 901 to move upward, so that the upward movement of the movable block 901 will drive the second tooth plate 1003 to move downward. When the second tooth plate 1003 moves downward, the reset button switch 1004 will be pressed, and then the reset button switch 1004 will start the retraction rod body 701, and the retraction rod body 701 will move downward, and the retraction rod body 701 will drive the supporting slot block 4 to move downward, and the limit vertical rod 702 will move relative to The position does not change, so the limiting vertical rod 702 will relatively support the sealed can, and the support slot block 4 will press the L-shaped rotating rod 705, so that the L-shaped rotating rod 705 will drive the pushing block 706 to push the sealed can into the storage slot block 5, and then kick out the sealed can that does not meet the airtightness requirements, avoiding the operator's observation problems, and thus facilitating the inspection of the next sealed can, increasing the inspection efficiency of the sealed can, and the limiting vertical rod 702 of this device is set a little lower than the inner wall of the support slot block 4, so that it can ensure that during the movement of the support slot block 4, the sealed can will also move down a part, which makes it convenient for the pushing block 706 to push it. This device highlights the innovative structure and does not elaborate too much on the existing mature technologies. For example, the reset button switch 1004, the normally extended electric telescopic rod structure of the retracting rod body 701, and the pressure gauge 907 in the application are all existing mature technologies.

[0028] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical connection methods, and can be implemented as long as they can achieve their beneficial effects. In addition, the electrical components appearing in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Technicians in this field can control the electrical components through simple programming, and the existing disclosed power connection technology is also common knowledge in this field, so the specific structural composition and working principle will not be described in detail in this embodiment.

Claims

1. A sealed can airtightness detection device, comprising a detection box (1), characterized in that: An electric telescopic rod (2) for extrusion sealing is fixedly mounted at the center of the upper inner wall of the detection box (1), and a sealing assembly (3) for extrusion sealing is fixedly mounted at the output end of the electric telescopic rod (2), and a support slot block (4) for supporting is provided on the lower side of the inner wall of the detection box (1) below the sealing assembly (3), and a storage slot block (5) for storing unqualified sealed cans is fixedly mounted on the front side of the support slot block (4) at the front of the detection box (1); An ejection cavity (6) for ejection is provided on the lower side of the inner wall of the detection box (1), and a kick-out assembly (7) for kicking out unqualified sealed cans is provided on the lower side of the inner wall of the ejection cavity (6). A pressurization cavity (8) for gas pressurization detection is provided on the right side of the rear of the inner wall of the detection box (1), and a starting assembly (9) for pressure starting is provided on the lower side of the inner wall of the pressurization cavity (8).

2. The airtightness detection device for sealed cans according to claim 1, characterized in that: The sealing assembly (3) comprises a fixed block (301) fixedly mounted on the output end of the electric telescopic rod (2), and a sealing gasket (302) for sealing is fixedly mounted on the bottom surface of the fixed block (301) located above the supporting groove block (4), and the sealing gasket (302) comprises a cylindrical sealing block (3021) and a frustum sealing block (3022) fixed on the bottom surface of the cylindrical sealing block (3021), and guide vertical rods (304) for guiding are slidably mounted on the left and right surfaces of the fixed block (301) through fixed limiting hole blocks (303), and the upper and lower ends of the two guide vertical rods (304) are fixedly connected to the upper and lower sides of the inner wall of the detection box (1), respectively.

3. The airtightness detection device for sealed cans according to claim 2, characterized in that: The kick-out assembly (7) comprises a retractable rod body (701) fixedly mounted at the center below the inner wall of the ejection cavity (6); a storage slot (703) for storage is provided on the rear side of the inner wall of the detection box (1) and located behind the support slot block (4); an L-shaped rotating rod (705) for rotating and extruding is mounted on the lower side of the inner wall of the storage slot (703) via two fixed connecting blocks (704) in a manner that rotates together; a pushing block (706) for pushing is fixedly mounted on the top surface of the L-shaped rotating rod (705); and the rear side of the L-shaped rotating rod (705) is fixedly connected to the rear side of the inner wall of the storage slot (703) via a fixed tension spring (707).

4. The airtightness detection device for sealed cans according to claim 3, characterized in that: The starting assembly (9) includes a movable block (901) slidably mounted on the lower side of the inner wall of the pressurizing chamber (8), and the four corners of the bottom surface of the movable block (901) are fixedly connected to the lower side of the inner wall of the pressurizing chamber (8) by fixedly mounting damping springs (902), and the bottom surface of the movable block (901) is provided with a connecting assembly (10) for connecting the retracting rod body (701), an air pump (903) for gas delivery is fixedly mounted on the left side above the top surface of the detection box (1), and the output end of the air pump (903) is fixedly connected to a first connecting pipe (904) for gas delivery, and the pipe wall of the first connecting pipe (904) is provided with an electromagnetic valve (905) for switch control, and a second connecting pipe (906) for connection is fixedly mounted on the front side of the inner wall of the pressurizing chamber (8), and a pressure gauge (907) for air pressure feedback is fixedly mounted on the upper side of the inner wall of the pressurizing chamber (8).

5. The airtightness detection device for sealed cans according to claim 4, characterized in that: The connecting assembly (10) includes a first tooth plate (1001) fixedly mounted on the bottom surface of the movable block (901), and the surface of the first tooth plate (1001) is meshed with a second tooth plate (1003) for movement via a meshing gear (1002), and a self-resetting button switch (1004) for starting the retraction rod body (701) is provided on the lower side of the inner wall of the pressurizing chamber (8) below the second tooth plate (1003).

6. The airtightness detection device for sealed cans according to claim 3, characterized in that: The support trough block (4) is a circular trough block structure, and the inner wall of the support trough block (4) is circular. The storage trough block (5) comprises a collecting trough body (501) and an unfolding inclined plate (502) fixed on the circumferential side of the top surface of the collecting trough body (501). The bottom surface of the collecting trough body (501) is inclined, and the inclination direction is higher at the back and lower at the front. A connecting groove (503) is provided on the rear side of the inner wall of the collecting trough body (501) below the support trough block (4), and the length of the connecting groove (503) is greater than 1.5 times the diameter of the supporting trough block (4).

7. The airtightness detection device for sealed cans according to claim 3, characterized in that: The retractable rod body (701) is a normally extending electric telescopic rod structure, and the output end of the retractable rod body (701) passes through the upper side of the inner wall of the ejection cavity (6) and is fixedly connected to the bottom surface of the support slot block (4). A plurality of limiting vertical rods (702) for sliding limiting are fixedly installed on the circumference of the retractable rod body (701) below the inner wall of the ejection cavity (6), and the upper ends of the plurality of limiting vertical rods (702) all pass through the upper side of the inner wall of the ejection cavity (6) and the bottom surface of the support slot block (4), and extend to the interior of the support slot block (4).

8. The airtightness detection device for sealed cans according to claim 3, characterized in that: The lower side of the inner wall of the storage tank (703) is inclined, and the angle between the lower side of the inner wall of the storage tank (703) and the lower side of the inner wall of the detection box (1) is θ, and 30°θ≤45°. The pushing block (706) is an arc-shaped block structure, and the width of the pushing block (706) is less than 0.8 times the width of the storage tank (703), and the front of the L-shaped rotating rod (705) contacts the bottom surface of the supporting slot block (4).

9. The airtightness detection device for sealed cans according to claim 4, characterized in that: The lower end of the first connecting tube (904) passes through the top surface of the detection box (1) and extends to the inner wall of the pressurized chamber (8), and the front end of the second connecting tube (906) passes through the top surface of the sealing assembly (3) and extends to the bottom surface of the sealing assembly (3).

10. The airtightness detection device for sealed cans according to claim 5, characterized in that: Limiting grooves (1005) for limiting are provided on both the front and rear sides of the inner wall of the pressurizing chamber (8), and the inner walls of the two limiting grooves (1005) are fixedly connected to the opposite sides of the second tooth plate (1003) through sliding limiting blocks (1006), and the opposite sides of the second tooth plate (1003) are in contact with the front and rear sides of the inner wall of the pressurizing chamber (8), respectively. The inner wall of the gear (1002) is rotatably connected to the inner wall of the pressurizing chamber (8) through a fixed connecting shaft (1007).

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