A device for detecting the tightness of a nut product

Abstract

The utility model discloses a nut product sealing property detection device belongs to food packaging technical field. This kind of nut product sealing property detection device, including work table, the bottom of work table is installed with support frame, the top department of work table is installed with seal seat, one side of seal seat is installed with suction port, the other side of seal seat is installed with air inlet, one end of suction port is installed with first solenoid valve, the suction end of suction pump is connected to one end of first solenoid valve, the top one side of work table is installed with suction pump, the suction end of suction pump is connected to one end of first solenoid valve, the top other side of work table is installed with inflation pump, one end of air inlet is installed with second solenoid valve, the utility model can effectively realize nut package positive pressure and negative pressure double sealing property detection, replace manual immersion detection, avoid package breakage, and the detection result is intuitive and reliable, and is suitable for food factory scale quality inspection scene, and has higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of food packaging technology, specifically to a device for detecting the airtightness of nut products. Background Technology

[0002] Nuts are rich in nutrients such as protein and minerals, but their shelf life is significantly affected by the airtightness of their packaging. Poor sealing can easily lead to nuts becoming damp and oxidizing, which not only affects product quality but may also endanger consumer health. Therefore, nut products must undergo rigorous airtightness testing before leaving the factory.

[0003] Based on the above, the inventors have discovered the following problems: the current nut product sealing detection device has a relatively simple function and is difficult to simulate the sealing performance under different air pressure environments, which affects the user's use.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a nut product sealing detection device in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this utility model is to provide a sealing performance testing device for nut products, so as to solve the problem mentioned in the background art that the current sealing performance testing devices for nut products have relatively simple functions and are difficult to simulate the sealing performance under different air pressure environments, which affects the user's use.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows: A sealing performance testing device for nut products includes a workbench, a support frame mounted at the bottom of the workbench, a sealing seat mounted at the center of the top of the workbench, an air extraction port mounted on one side of the sealing seat, an air inlet mounted on the other side of the sealing seat, a first solenoid valve mounted at one end of the air extraction port, an air pump mounted on one side of the top of the workbench, one end of the first solenoid valve connected to the air extraction end of the air pump, an air inflation pump mounted on the other side of the top of the workbench, a second solenoid valve mounted at one end of the air inlet, one end of the second solenoid valve connected to the inflation end of the air inflation pump, a sealing cover provided at the top of the sealing seat, and a height adjustment mechanism for adjusting the height of the sealing cover provided at the top of the workbench.

[0007] Furthermore, the height adjustment mechanism includes a column, a horizontal arm is installed at the top of one side of the column, a hydraulic telescopic rod is installed at the top of the horizontal arm, the output end of the hydraulic telescopic rod passes through the bottom end of the horizontal arm, and the output end of the hydraulic telescopic rod is fixedly connected to the top of the sealing cover.

[0008] The beneficial effects of adopting the above-mentioned further solution are that by adjusting the column and the cross arm of the height adjustment mechanism, a stable installation foundation is provided for the hydraulic telescopic rod; by driving the sealing cover to rise and fall up and down through the hydraulic telescopic rod, the sealing cover can be opened and closed automatically, replacing manual operation and reducing labor intensity.

[0009] Furthermore, a slide rail is installed on one side of the column, a sliding sleeve is slidably connected to one side of the slide rail, a connecting arm is installed on one side of the sliding sleeve, and one end of the connecting arm is fixedly connected to one end face of the sealing cover.

[0010] The beneficial effects of adopting the above-mentioned further solution are that by sliding the slide rail and the sliding sleeve on one side of the column, the sealing cover is guided to rise and fall in a straight line, avoiding the sealing cover tilting and causing misalignment; by fixing the sealing cover and the sliding sleeve with the connecting arm, it is ensured that the sealing cover always remains horizontal when rising and falling, so that the sealing strip fits evenly into the sealing groove, preventing local gaps from causing air pressure leakage, and further ensuring the detection accuracy.

[0011] Furthermore, a pair of reinforcing blocks are installed at the top of one side of the column, and the top of the reinforcing blocks is fixedly connected to the bottom of the cross arm.

[0012] The beneficial effect of adopting the above-mentioned further solution is that by fixing a pair of reinforcing blocks at the top of one side of the column to the bottom of the cross arm, the load-bearing strength of the cross arm is enhanced, and deformation of the cross arm is avoided when the hydraulic telescopic rod is working.

[0013] Furthermore, a pressure gauge is installed on one end face of the sealing seat.

[0014] The advantage of adopting the above-mentioned further solution is that the pressure value inside the sealed cavity can be displayed in real time through the pressure gauge on one end face of the sealing seat, which makes it convenient for operators to intuitively observe pressure changes.

[0015] Furthermore, a sealing strip is installed on the outer side of the bottom end of the sealing cover, and a sealing groove is opened on the outer side of the top end of the sealing seat. The outer side of the sealing strip and the inner side of the sealing groove are inserted into each other.

[0016] The beneficial effect of adopting the above-mentioned further solution is that by inserting the sealing strip at the bottom of the sealing cover into the sealing groove at the top of the sealing seat, a double sealing structure is formed, which enhances the sealing performance of the sealed cavity.

[0017] Furthermore, support seats are installed at the four corners of the bottom of the support frame, and the bottom of the support seats is provided with anti-slip texture.

[0018] The advantage of adopting the above-mentioned further solution is that the placement stability of the device is improved by installing support bases at the four corners of the bottom of the support frame.

[0019] Compared with existing technologies, the beneficial effects of this utility model are as follows: This nut product sealing test device provides a stable bearing foundation for the core testing components through a workbench, ensuring that the overall structure does not shift during the testing process and guaranteeing testing accuracy; the support frame at the bottom of the workbench raises the height of the workbench, adapting to the operator's working posture, while reserving space for equipment pipeline layout; the sealing seat supports the nut packaging to be tested, forming a sealed testing chamber with the sealing cover, avoiding air pressure leakage affecting the results during testing; the air extraction port, the first solenoid valve, and the air pump work together to draw the sealed chamber to a negative pressure state, simulating the low-pressure environment during packaging storage and transportation; the air inlet, the second solenoid valve, and the air pump work together to inflate the sealed chamber to form positive pressure, testing the packaging's anti-expansion properties; the height of the sealing cover can be adjusted by the height adjustment mechanism to adapt to nut packaging of different thicknesses and sizes. This utility model can effectively achieve dual sealing test of nut packaging under positive and negative pressure, replacing manual immersion testing, avoiding packaging damage, and providing intuitive and reliable test results. It is suitable for large-scale quality inspection scenarios in food factories and has high practical value. Attached Figure Description

[0020] Figure 1 This is one of the three-dimensional structural schematic diagrams disclosed in the embodiments of this utility model; Figure 2 This is the second three-dimensional structural schematic diagram disclosed in the embodiment of this utility model; Figure 3 This is the third perspective structural diagram of the present utility model embodiment; Figure 4 This is one of the disassembled three-dimensional structural diagrams disclosed in the embodiments of this utility model; Figure 5 This is the second disassembled three-dimensional structural diagram disclosed in the embodiment of this utility model.

[0021] In the diagram: 1. Workbench; 2. Support frame; 3. Support base; 4. Sealing seat; 401. Air extraction port; 402. Air inlet; 403. Sealing groove; 5. First solenoid valve; 6. Air pump; 7. Pressure gauge; 8. Second solenoid valve; 9. Air pump; 10. Sealing cover; 1001. Sealing strip; 11. Height adjustment mechanism; 1101. Column; 1102. Horizontal arm; 1103. Hydraulic telescopic rod; 1104. Slide rail; 1105. Sliding sleeve; 1106. Connecting arm; 1107. Reinforcing block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 This utility model provides a technical solution: a sealing performance testing device for nut products, including a workbench 1, a support frame 2 installed at the bottom of the workbench 1, a sealing seat 4 installed at the middle of the top of the workbench 1, an air extraction port 401 installed on one side of the sealing seat 4, an air inlet 402 installed on the other side of the sealing seat 4, a first solenoid valve 5 installed at one end of the air extraction port 401, an air pump 6 installed on one side of the top of the workbench 1, one end of the first solenoid valve 5 connected to the air extraction end of the air pump 6, an air filling pump 9 installed on the other side of the top of the workbench 1, a second solenoid valve 8 installed at one end of the air inlet 402, one end of the second solenoid valve 8 connected to the filling end of the air filling pump 9, a sealing cover 10 provided at the top of the sealing seat 4, and a height adjustment mechanism 11 for adjusting the height of the sealing cover 10 provided at the top of the workbench 1. The workbench 1 provides a stable support for the core components, ensuring that the overall structure does not shift during the testing process and guaranteeing testing accuracy. The support frame 2 at the bottom of the workbench 1 raises the height of the workbench 1 to accommodate the operator's working posture and also reserves space for the equipment pipeline layout. The sealing seat 4 supports the nut packaging to be tested, forming a sealed testing chamber with the sealing cover 10 to prevent air pressure leakage from affecting the results during testing. The air extraction port 401, the first solenoid valve 5 and the air pump 6 work together to draw the sealed chamber to a negative pressure state, simulating the low-pressure environment during packaging storage and transportation. The air inlet 402, the second solenoid valve 8 and the air pump 9 work together to inflate the sealed chamber to form positive pressure, testing the packaging's anti-expansion properties. The height of the sealing cover 10 is adjusted by the height adjustment mechanism 11 to accommodate nut packaging of different thicknesses and sizes.

[0024] The height adjustment mechanism 11 includes a column 1101, a horizontal arm 1102 installed at the top of one side of the column 1101, and a hydraulic telescopic rod 1103 installed at the top of the horizontal arm 1102. The output end of the hydraulic telescopic rod 1103 passes through the bottom end of the horizontal arm 1102 and is fixedly connected to the top of the sealing cover 10. The column 1101 and the horizontal arm 1102 of the height adjustment mechanism 11 cooperate to provide a stable installation foundation for the hydraulic telescopic rod 1103. The hydraulic telescopic rod 1103 drives the sealing cover 10 to move up and down, realizing the automatic opening and closing of the sealing cover 10, replacing manual operation and reducing labor intensity.

[0025] The column 1101 has a slide rail 1104 installed on one side, a slide sleeve 1105 slidably connected to one side of the slide rail 1104, and a connecting arm 1106 installed on one side of the slide sleeve 1105. One end of the connecting arm 1106 is fixedly connected to one end face of the sealing cover 10. The slide rail 1104 and the slide sleeve 1105 on one side of the column 1101 slide together to guide the sealing cover 10 to rise and fall in a straight line, avoiding the sealing cover 10 from tilting and causing misalignment. The connecting arm 1106 fixes the sealing cover 10 and the slide sleeve 1105 to ensure that the sealing cover 10 remains horizontal when rising and falling, so that the sealing strip 1001 fits evenly against the sealing groove 403, preventing local gaps from causing air pressure leakage and further ensuring the detection accuracy.

[0026] Among them, a pair of reinforcing blocks 1107 are installed on the top of one side of the column 1101. The top of the reinforcing blocks 1107 are fixedly connected to the bottom of the cross arm 1102. The pair of reinforcing blocks 1107 on the top of one side of the column 1101 are fixedly connected to the bottom of the cross arm 1102 to enhance the load-bearing strength of the cross arm 1102 and prevent the cross arm 1102 from deforming when the hydraulic telescopic rod 1103 is working.

[0027] Among them, a pressure gauge 7 is installed on one end face of the sealing seat 4. The pressure gauge 7 on one end face of the sealing seat 4 can display the pressure value inside the sealed cavity in real time, so that the operator can intuitively observe the pressure change.

[0028] The sealing cover 10 has a sealing strip 1001 installed on the outer side of its bottom end, and a sealing groove 403 is opened on the outer side of its top end. The outer side of the sealing strip 1001 and the inner side of the sealing groove 403 are inserted into each other. By connecting the sealing strip 1001 at the bottom end of the sealing cover 10 with the sealing groove 403 at the top end of the sealing seat 4, a double sealing structure is formed to enhance the sealing performance of the sealed cavity.

[0029] Among them, support bases 3 are installed at the four corners of the bottom of the support frame 2. The bottom of the support bases 3 is provided with anti-slip texture. The installation of support bases 3 at the four corners of the bottom of the support frame 2 improves the placement stability of the device.

[0030] Specifically, the working principle of this nut product sealing test device is as follows: During use, the workbench 1 provides a stable support base for the core testing components, ensuring that the overall structure does not shift during the testing process and guaranteeing testing accuracy; the support frame 2 at the bottom of the workbench 1 raises the height of the workbench 1 to accommodate the operator's working posture and simultaneously reserves space for equipment piping layout; the sealing seat 4 supports the nut packaging to be tested, forming a sealed testing chamber with the sealing cover 10 to prevent air pressure leakage from affecting the results during testing; the air extraction port 401, the first solenoid valve 5, and the air pump 6 work together to draw the sealed chamber to a negative pressure state, simulating... The packaging is stored in a low-pressure environment during transportation. Positive pressure is created by inflating the sealed cavity through the air inlet 402, the second solenoid valve 8, and the air pump 9 to test the packaging's resistance to inflation. The height of the sealing cover 10 is adjusted via the height adjustment mechanism 11 to accommodate nut packaging of different thicknesses and sizes. The upright 1101 and the cross arm 1102 of the height adjustment mechanism 11 provide a stable installation foundation for the hydraulic telescopic rod 1103. The hydraulic telescopic rod 1103 drives the sealing cover 10 to move up and down, achieving automated opening and closing of the sealing cover 10, replacing manual operation, reducing labor intensity. The sealing cover 10 is automatically opened and closed via a slide rail 1 on one side of the upright 1101. 104 slides in conjunction with the sliding sleeve 1105 to guide the sealing cover 10 to rise and fall in a straight line, preventing the sealing cover 10 from tilting and causing misalignment of the seal; the connecting arm 1106 fixes the sealing cover 10 and the sliding sleeve 1105 to ensure that the sealing cover 10 remains horizontal during rise and fall, so that the sealing strip 1001 fits evenly against the sealing groove 403, preventing air pressure leakage due to local gaps and further ensuring detection accuracy; a pair of reinforcing blocks 1107 on the top of one side of the column 1101 are fixedly connected to the bottom of the cross arm 1102 to enhance the load-bearing strength of the cross arm 1102 and prevent the cross arm 1102 from deforming when the hydraulic telescopic rod 1103 is working. The pressure gauge 7 on one end face of the sealing seat 4 displays the internal pressure value of the sealed cavity in real time, allowing operators to intuitively observe pressure changes. The sealing strip 1001 at the bottom of the sealing cover 10 is inserted into the sealing groove 403 at the top of the sealing seat 4 to form a double sealing structure, enhancing the sealing performance of the sealed cavity. Support seats 3 are installed at the four corners of the bottom of the support frame 2 to improve the placement stability of the device. This utility model can effectively realize the dual sealing performance detection of positive and negative pressure for nut packaging, replacing manual water immersion testing, avoiding packaging damage, and providing intuitive and reliable test results. It is suitable for large-scale quality inspection scenarios in food factories and has high practical value.

Claims

1. A device for detecting the sealing performance of nut products, characterized in that, The system includes a workbench (1), a support frame (2) installed at the bottom of the workbench (1), a sealing seat (4) installed at the middle of the top of the workbench (1), an air extraction port (401) installed on one side of the sealing seat (4), an air inlet (402) installed on the other side of the sealing seat (4), a first solenoid valve (5) installed at one end of the air extraction port (401), an air pump (6) installed on one side of the top of the workbench (1), one end of the first solenoid valve (5) connected to the air extraction end of the air pump (6), an air filling pump (9) installed on the other side of the top of the workbench (1), a second solenoid valve (8) installed at one end of the air inlet (402), one end of the second solenoid valve (8) connected to the air filling end of the air filling pump (9), a sealing cover (10) provided at the top of the sealing seat (4), and a height adjustment mechanism (11) for adjusting the height of the sealing cover (10) provided at the top of the workbench (1).

2. The sealing performance testing device for nut products according to claim 1, characterized in that, The height adjustment mechanism (11) includes a column (1101), a cross arm (1102) is installed on the top of one side of the column (1101), a hydraulic telescopic rod (1103) is installed on the top of the cross arm (1102), the output end of the hydraulic telescopic rod (1103) passes through the bottom end of the cross arm (1102), and the output end of the hydraulic telescopic rod (1103) is fixedly connected to the top of the sealing cover (10).

3. The sealing performance testing device for nut products according to claim 2, characterized in that, A slide rail (1104) is installed on one side of the column (1101), a sliding sleeve (1105) is slidably connected to one side of the slide rail (1104), a connecting arm (1106) is installed on one side of the sliding sleeve (1105), and one end of the connecting arm (1106) is fixedly connected to one end face of the sealing cover (10).

4. The sealing performance testing device for nut products according to claim 2, characterized in that, A pair of reinforcing blocks (1107) are installed on one side of the top of the column (1101), and the top of the reinforcing block (1107) is fixedly connected to the bottom of the cross arm (1102).

5. The sealing performance testing device for nut products according to claim 1, characterized in that, A pressure gauge (7) is installed on one end face of the sealing seat (4).

6. The sealing performance testing device for nut products according to claim 1, characterized in that, A sealing strip (1001) is installed on the outer side of the bottom end of the sealing cover (10), and a sealing groove (403) is opened on the outer side of the top end of the sealing seat (4). The outer side of the sealing strip (1001) and the inner side of the sealing groove (403) are inserted together.

7. The sealing performance testing device for nut products according to claim 1, characterized in that, The support frame (2) has support seats (3) installed at the four corners of its bottom end, and the bottom end of the support seats (3) is provided with anti-slip texture.

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