Self-sealing vacuum chuck

Abstract

The invention relates to the technical field of vacuum equipment, and discloses a self-sealing vacuum sucker which comprises a sucker body, an air storage bin is fixedly connected to the top of the sucker body, a sealing pipe is fixedly connected to the end, away from the sucker body, of the air storage bin, and a conveying pipe is fixedly installed at the end, away from the air storage bin, of the sealing pipe. A vacuum generator is installed at the end, away from the sealing pipe, of the conveying pipe, a dismounting and mounting assembly is arranged between the conveying pipe and the vacuum generator, and a sealing assembly and a filtering assembly are arranged in the sealing pipe; the bottom of the suction cup body is fixedly connected with a sealing lip outer layer, a sealing lip middle layer and a sealing lip inner layer in sequence from outside to inside. Through cooperation of the sealing lip outer layer, the sealing lip middle layer, the sealing lip inner layer, the first connecting block, the second connecting block, the memory alloy gasket and other structures, a multi-dimensional self-sealing barrier is constructed, the problem that a traditional suction cup leaks air on the rough surface is effectively solved, and the adsorption sealing performance and reliability are improved.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum equipment, in particular to a self-sealing vacuum suction cup. Background Art

[0002] In the process of industrial automation, traditional mechanical grippers have limitations when grasping objects with irregular shapes and fragile surfaces. Vacuum suction cups came into being. Vacuum suction cups use the principle of negative pressure adsorption to gently and firmly grasp objects, making up for the shortcomings of traditional grasping methods.

[0003] A vacuum suction cup is usually composed of a suction cup, a suction cup hoop, connecting pipes and a control system. It is connected to the vacuum equipment through a connecting pipe. After coming into contact with the object to be lifted, the vacuum equipment suctions to generate negative air pressure in the suction cup, and uses the pressure difference between the inside and outside to suck the object firmly to complete the transportation. After reaching the destination, the suction cup is inflated to restore the air pressure, and the object can be separated from the suction cup. It is used to adsorb and transport various objects.

[0004] As the manufacturing industry develops towards high precision and flexibility, the limitations of traditional vacuum suction cups are gradually highlighted when handling objects with rough, porous, irregular or fragile surfaces. On the one hand, due to the single sealing structure, when there are tiny gaps, depressions or protrusions on the adsorption surface, air leakage is very likely to occur, making it difficult to maintain the vacuum degree, resulting in insufficient adsorption force, object falling off and other problems; on the other hand, traditional vacuum suction cups lack an adaptive sealing compensation mechanism. Once a slight air leakage occurs, the vacuum equipment needs to be frequently started and stopped to maintain the adsorption force, which not only increases energy consumption, but also reduces the service life and production efficiency of the equipment. In addition, in the production line, impurities can easily enter the vacuum system, causing component wear and frequent failures, making it difficult to meet the needs of modern industry for efficient, stable and reliable grasping operations. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a self-sealing vacuum suction cup, which solves the problems of poor sealing effect when traditional vacuum suction cups adsorb rough, porous or fragile objects, lack of adaptive compensation mechanism, and impurities easily invading the vacuum system, resulting in low reliability.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a self-sealing vacuum suction cup, comprising a suction cup body, the top of the suction cup body is fixedly connected to an air storage bin, the end of the air storage bin away from the suction cup body is fixedly connected to a sealing tube, the end of the sealing tube away from the air storage bin is fixedly installed with a delivery pipe, the end of the delivery pipe away from the sealing pipe is installed with a vacuum generator, a disassembly assembly is provided between the delivery pipe and the vacuum generator, a sealing assembly and a filter assembly are provided inside the sealing tube, the bottom of the suction cup body is fixedly connected with an outer sealing lip layer, a middle sealing lip layer and an inner sealing lip layer in sequence from the outside to the inside, the suction cup body The bottom is provided with an exhaust hole 1 and an exhaust hole 2, the outer layer of the sealing lip, the middle layer of the sealing lip and the inner layer of the sealing lip are all fixedly connected with a connecting block 1, the top of the connecting block 1 is installed with a connecting block 2, a memory alloy gasket is fixedly connected between the connecting block 1 and the connecting block 2, the outer layer of the sealing lip, the middle layer of the sealing lip and the inner layer of the sealing lip are all provided with a card slot, the connecting block 1 and the connecting block 2 are both engaged with the card slot, the materials of the outer layer of the sealing lip, the middle layer of the sealing lip and the inner layer of the sealing lip are specifically set to chloroprene rubber, fluororubber and polyurethane rubber respectively, and the sealing assembly is arranged directly above the filter assembly.

[0007] Preferably, the sealing assembly includes a one-way valve, the one-way valve is fixedly connected to a threaded rod at one end close to the sealing tube, the threaded rod is threadedly connected to the outside of the sealing tube, the one-way valve is fixedly connected to the one-way valve at one end close to the sealing tube, and the one-way valve is fixedly connected to the one-way valve at one end away from the sealing tube, a pressure sensor is installed inside the sealing tube, and a display is installed on the outer wall of the air storage bin.

[0008] Preferably, the filter assembly includes a moving block, which is installed inside the sealing tube, and the moving block is fixedly connected to a primary filter screen at one end close to the sealing tube, and the top and bottom of the primary filter screen are fixedly connected to a secondary filter screen, and the moving block is fixedly connected to a pull ring at one end away from the sealing tube.

[0009] Preferably, the disassembly and assembly assembly includes a connecting tube 1, which is fixedly connected to the side of the vacuum generator close to the delivery tube, and a connecting tube 2 is fixedly connected to the end of the delivery tube close to the vacuum generator. The inner wall of the connecting tube 1 is evenly fixedly connected with a protrusion, and a sliding groove is provided at the end of the connecting tube 2 close to the protrusion. A pair of clamps are installed between the connecting tube 1 and the connecting tube 2, and a bolt is installed between the pair of clamps.

[0010] Preferably, a screw hole is opened inside the sealing tube, the threaded rod is threadedly connected to the middle of the screw hole, the valve head is rotatably connected to the inside of the sealing tube, and the pressure sensor is electrically connected to the display.

[0011] Preferably, the secondary filter and the primary filter are both installed directly above the gas storage bin.

[0012] Preferably, the protrusion is slidably connected to the middle portion of the sliding groove.

[0013] The present invention provides a self-sealing vacuum suction cup. It has the following beneficial effects: 1. The present invention achieves sealing enhancement from macro to micro by using three-layer sealing lips with chloroprene rubber as the outer layer, fluororubber as the middle layer, and polyurethane rubber as the inner layer, combined with the internal connecting block, memory alloy gasket and slot structure. The outer layer of the sealing lip first adheres to the adsorption surface to form an initial seal by virtue of its wear-resistant support properties, the middle layer fills large concave and convex defects through elastic deformation, and the inner layer closely adheres to microscopic pores by virtue of its soft texture; at the same time, the memory alloy gasket pushes the connecting block to slide under the action of pressure, so that the three-layer sealing lip adapts to different surface shapes. When the temperature changes, the memory alloy gasket continuously compensates for the deformation error of the sealing lip through shape memory recovery force, constructing a multi-dimensional self-sealing barrier, effectively solving the leakage problem of traditional suction cups on rough surfaces, and improving the adsorption sealing performance and reliability.

[0014] 2. This invention utilizes the coordination of the air storage bin and the sealing assembly to achieve manual intervention and dynamic compensation of the vacuum level. When the vacuum level within the suction cup reaches the set value, the operator can observe the pressure data on the display and manually rotate the threaded rod to drive the valve head to close the sealing channel, preventing air from flowing back. If a leak occurs, the one-way valve can be manually opened to allow the pre-stored air in the air storage bin to replenish the suction cup, maintaining suction force. This design avoids the energy waste of frequently starting and stopping the vacuum generator, provides the device with self-sealing capabilities that can be manually intervened, and solves the problem of suction failure caused by air replenishment.

[0015] 3. The present invention adopts a dual filtering structure of a primary filter and a secondary filter. During the vacuuming process, the primary filter intercepts larger particles of impurities, and the secondary filter further filters fine impurities. This double protection prevents particles from entering the vacuum generator, reduces equipment wear and failure probability, reduces maintenance costs, and ensures long-term stable operation of the system.

[0016] 4. The present invention uses a quick disassembly and assembly structure composed of a connecting tube, a bump, a clamp and a bolt. When the sealing assembly needs to be inspected or a worn sealing lip needs to be replaced, the vacuum generator and the delivery pipe can be quickly separated without tools, making it easy to clean or replace the sealing components inside the air storage bin and the sealing pipe. This convenient maintenance design ensures the replaceability and repairability of each component of the sealing system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention; Figure 2 A schematic diagram of the outer layer of the sealing lip of the present invention; Figure 3 Schematic diagram of the first air extraction hole of the present invention; Figure 4 Schematic diagram of the connecting block 1 of the present invention; Figure 5 Schematic diagram of the memory alloy gasket of the present invention; Figure 6 is a schematic diagram of the card slot of the present invention; Figure 7 is a schematic diagram of a vacuum generator of the present invention; Figure 8 A schematic diagram of the disassembly and assembly of the components of the present invention; Figure 9 is a schematic diagram of a sealing assembly of the present invention; Figure 10 Schematic diagram of the filter assembly of the present invention.

[0018] Among them, 1. Suction cup body; 2. Air storage bin; 3. Sealing tube; 4. Delivery tube; 5. Vacuum generator; 6. Sealing assembly; 61. One-way valve; 62. Threaded rod; 63. Valve head; 64. Screw hole; 65. Pressure sensor; 66. Display; 8. Filter assembly; 81. Moving block; 82. Secondary filter; 83. Primary filter; 84. Pull ring; 9. Disassembly and assembly assembly; 91. Connecting pipe 1; 92. Connecting pipe 2; 93. Bump; 94. Slide; 95. Clamp; 96. Bolt; 10. Outer layer of sealing lip; 11. Middle layer of sealing lip; 12. Inner layer of sealing lip; 13. Exhaust hole 1; 14. Exhaust hole 2; 15. Connecting block 1; 16. Connecting block 2; 17. Memory alloy gasket; 18. Slot. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. 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.

[0020] Please see the attached Figure 1 -Attached Figure 6, an embodiment of the present invention provides a self-sealing vacuum suction cup, comprising a suction cup body 1, the top of the suction cup body 1 is fixedly connected to an air storage bin 2, the end of the air storage bin 2 away from the suction cup body 1 is fixedly connected to a sealing tube 3, the end of the sealing tube 3 away from the air storage bin 2 is fixedly installed with a delivery pipe 4, the end of the delivery pipe 4 away from the sealing tube 3 is installed with a vacuum generator 5, a disassembly assembly 9 is provided between the delivery pipe 4 and the vacuum generator 5, a sealing assembly 6 and a filter assembly 8 are provided inside the sealing tube 3, the bottom of the suction cup body 1 is fixedly connected with a sealing lip outer layer 10, a sealing lip middle layer 11 and a sealing lip inner layer 12 from the outside to the inside, the bottom of the suction cup body 1 is provided with an air extraction hole 13 and an air extraction hole 2 14, and the sealing lip The outer layer 10, the sealing lip middle layer 11 and the sealing lip inner layer 12 are all fixedly connected with a connecting block 15, the top of the connecting block 15 is installed with a connecting block 2, and a memory alloy gasket 17 is fixedly connected between the connecting block 15 and the connecting block 2 16. The inner parts of the sealing lip outer layer 10, the sealing lip middle layer 11 and the sealing lip inner layer 12 are all provided with a card groove 18, and the connecting block 15 and the connecting block 2 16 are both engaged with the card groove 18. The air storage tank 2 is connected to the internal space of the delivery pipe 4 through the sealing tube 3. The sealing assembly 6 is arranged directly above the filter assembly 8. The materials of the sealing lip outer layer 10, the sealing lip middle layer 11 and the sealing lip inner layer 12 are specifically set to chloroprene rubber, fluororubber and polyurethane rubber respectively.

[0021] Specifically, through the coordinated operation of the vacuum generator 5, the delivery pipe 4, the sealing tube 3, the air storage bin 2 and the suction cup body 1, when the vacuum generator 5 is started, a high-speed airflow is generated inside it and discharged from the exhaust port, forming a negative pressure at the suction port. The negative pressure is transmitted to the air storage bin 2 through the delivery pipe 4 and the sealing tube 3 in turn, prompting the air in the suction cup body 1 to be quickly discharged through the bottom exhaust hole 13 and the exhaust hole 2 14. The gas is sucked out by the vacuum generator 5 through the air storage bin 2, the sealing tube 3 and the delivery pipe 4, thereby forming a vacuum adsorption effect in the suction cup body 1. In this process, the outer layer 10 of the sealing lip is made of chloroprene rubber, which utilizes its excellent wear resistance and support to first fit tightly with the adsorption surface to form an initial sealing barrier; the middle layer 11 of the sealing lip is made of fluororubber, which has good elastic deformation ability and helps to fill the larger depressions on the adsorption surface and block the air leakage channel; the inner layer 12 of the sealing lip is made of polyurethane rubber, which has its soft and delicate characteristics and fits tightly with the tiny pores and protrusions on the adsorption surface to achieve precision at the microscopic level. Sealing: The three-layer sealing lip is progressively constructed from macro to micro, building a full-scale sealing space, which helps to improve the sealing and stability of vacuum adsorption and ensure the firm adsorption of objects under various working conditions. At the same time, inside the three-layer sealing lip, the connecting block 15 and the connecting block 2 16 are connected by the card slot 18. The memory alloy gasket 17 between the two is elastically deformed under pressure when the suction cup contacts the adsorption surface, pushing the connecting block 2 16 to slide in the card slot 18, so that the three-layer sealing lip adapts to adsorption surfaces of different shapes. When the temperature of the adsorption surface changes, the memory alloy gasket 17 generates shape memory recovery force due to the thermal effect, and continuously adjusts the sealing lip fit through the linkage of the connecting block 15 and the connecting block 2 16. The material of the memory alloy gasket 17 is preferably nickel-titanium alloy, which compensates for the deformation error caused by thermal expansion and contraction, maintains the sealing fit, and constructs a sealing system with both surface adaptation and temperature compensation functions, which helps to solve the leakage problem of traditional suction cups on rough or irregular surfaces and improves the sealing and reliability of the adsorption process.

[0022] Please see the attached Figure 1 and attached Figure 9 The sealing assembly 6 includes a one-way valve 61, and the one-way valve 61 is fixedly connected to a threaded rod 62 at one end close to the sealing tube 3. The threaded rod 62 is threadedly connected to the outside of the sealing tube 3, and the one-way valve 61 is fixedly connected to the valve head 63 at one end of the threaded rod 62 close to the sealing tube 3. The one-way valve 61 is fixedly connected to the one-way valve at one end away from the sealing tube 3. A pressure sensor 65 is installed inside the sealing tube 3, and a display 66 is installed on the outer wall of the air storage bin 2. A screw hole 64 is opened inside the sealing tube 3, and the threaded rod 62 is threadedly connected to the middle of the screw hole 64. The valve head 63 is rotatably connected to the inside of the sealing tube 3, and the pressure sensor 65 is electrically connected to the display 66.

[0023] Specifically, the pressure changes of the vacuum system are monitored in real time by the pressure sensor 65 installed in the sealing tube 3, and the data is transmitted to the display 66 on the outer wall of the gas storage bin 2 for real-time display. When the vacuum degree in the suction cup body 1 reaches the set threshold, the operator observes the value on the display 66 and manually rotates the threaded rod 62 to drive the valve head 63 to close the channel of the sealing tube 3 to prevent air backflow; if the adsorption surface leaks and causes the pressure on the display 66 to rise, the operator opens the channel by rotating the threaded rod 62, so that the pre-stored gas in the gas storage bin 2 is replenished to the suction cup body 1 through the one-way valve 61 to maintain the adsorption negative pressure. This method realizes the manual monitoring and dynamic compensation of the vacuum degree, avoids frequent starting and stopping of vacuum equipment, and improves the operational stability of the vacuum suction cup.

[0024] Please see the attached Figure 1 and attached Figure 10 The filter assembly 8 includes a moving block 81, which is installed inside the sealing tube 3. The end of the moving block 81 close to the sealing tube 3 is fixedly connected to a primary filter screen 83, and the top and bottom of the primary filter screen 83 are fixedly connected to a secondary filter screen 82. The end of the moving block 81 away from the sealing tube 3 is fixedly connected to a pull ring 84. The secondary filter screen 82 and the primary filter screen 83 are both installed directly above the air storage bin 2.

[0025] Specifically, through the double-layer interception of the primary filter 83 and the secondary filter 82 inside the sealing tube 3, during the vacuum adsorption and exhaust process, impurities such as dust and particles that enter the sealing tube 3 with the air flow first encounter the coarse filtration of the primary filter 83, and its larger aperture structure effectively intercepts large particles of impurities such as sand and debris; then, the fine impurities that penetrate the primary filter 83 continue to move forward and are captured by the fine mesh of the secondary filter 82, whose filtering material can intercept micron-sized particles. The double filtration structure forms a progressive purification system, ensuring that impurities cannot enter the air storage bin 2 and the vacuum generator 5 through the sealing tube 3, avoiding wear, jamming or blockage of precision components due to impurity accumulation, reducing the maintenance frequency and replacement cost due to component loss, extending the service life of core components such as the vacuum generator 5, and ensuring the long-term stable operation of the vacuum suction cup system.

[0026] Please see the attached Figure 7 -Attached Figure 8 The disassembly and assembly component 9 includes a connecting pipe 91, which is fixedly connected to the side of the vacuum generator 5 close to the delivery pipe 4. The end of the delivery pipe 4 close to the vacuum generator 5 is fixedly connected to a connecting pipe 2 92. The inner wall of the connecting pipe 1 91 is evenly fixedly connected with a protrusion 93. The end of the connecting pipe 2 92 close to the protrusion 93 is provided with a slide groove 94. A pair of clamps 95 are installed between the connecting pipe 1 91 and the connecting pipe 2 92. A bolt 96 is installed between the pair of clamps 95. The protrusion 93 is slidably connected to the middle of the slide groove 94.

[0027] Specifically, the operator loosens the bolt 96 to release the limit on the clamp 95, thereby releasing the clamping force on the connecting tube 1 91 and the connecting tube 2 92. Subsequently, the connecting tube 1 91 is slid along the slide groove 94, and the protrusion 93 on the inner wall gradually disengages from the slide groove 94 of the connecting tube 2 92, thereby realizing the rapid separation of the conveying tube 4 and the vacuum generator 5. The entire disassembly process does not require the use of additional tools. During installation, the protrusion 93 is precisely aligned with the slide groove 94 and inserted. After sliding to the predetermined position along the track, the circumferential tightening force is applied to the clamp 95 by tightening the bolt 96, so that the connecting tube 1 91 and the connecting tube 2 92 fit tightly together, completing the rapid assembly of the components. This method helps to improve equipment maintenance efficiency and reduce downtime costs. It is especially suitable for the high-frequency maintenance needs of vacuum equipment in assembly line operations.

[0028] Working principle: When the vacuum generator 5 is started, a high-speed airflow is generated inside it and discharged from the exhaust port, and at the same time, a negative pressure is formed at the air intake port. The negative pressure is transmitted to the air storage bin 2 through the delivery pipe 4 and the sealing pipe 3, causing the air in the suction cup body 1 to be sucked into the air storage bin 2 through the bottom exhaust hole 13 and the exhaust hole 2 14, and then sucked out by the vacuum generator 5 through the sealing pipe 3 and the delivery pipe 4, forming a vacuum adsorption effect.

[0029] Under the action of the suction force of the vacuum generator 5, pressure is generated in turn on the outer layer 10 of the sealing lip, the middle layer 11 of the sealing lip, and the inner layer 12 of the sealing lip. The outer layer 10 of the sealing lip first adheres to the adsorption surface by relying on the wear resistance and support of the chloroprene rubber to form a preliminary seal. Subsequently, the middle layer 11 of the sealing lip fills the larger depressions on the adsorption surface by relying on the elastic deformation ability of the fluororubber, and the inner layer 12 of the sealing lip tightly adheres to the tiny pores and protrusions by relying on the soft properties of the polyurethane rubber. Inside the three-layer sealing lip, the connecting block 15 and the connecting block 2 16 are connected by the card slot 18. The memory alloy gasket 17 between the two elastically deforms under pressure when the suction cup contacts the adsorption surface, pushing the connecting block 2 16 to slide in the card slot 18, so that the three-layer sealing lip can adaptively adhere to the adsorption surface of different shapes. When the temperature of the adsorption surface changes, the memory alloy gasket 17 generates shape memory recovery force due to the thermal effect. The joint of the connecting block 15 and the connecting block 2 16 continuously adjusts the degree of sealing lip adhesion to compensate for the deformation error caused by temperature. The pressure sensor 65 installed in the sealing tube 3 monitors the pressure changes in the vacuum system in real time and transmits the pressure data to the display 66 for real-time display. When the vacuum level inside the suction cup body 1 reaches the set threshold, the operator observes the pressure value on the display 66 and manually rotates the threaded rod 62 to drive the valve head 63 to close the channel of the sealing tube 3, preventing the backflow of external air. If a slight air leak occurs on the adsorption surface and causes the pressure displayed on the display 66 to rise, the operator manually rotates the threaded rod 62 based on the numerical feedback to cause the valve head 63 to open the channel of the sealing tube 3. The vacuum gas pre-stored in the gas storage chamber 2 is replenished to the suction cup body 1 through the one-way valve 61, maintaining the negative pressure required for adsorption. During the air extraction process, dust, particles and other impurities in the air enter the sealed tube 3 along with the air flow. The larger particles are first intercepted by the primary filter 83, and then the fine impurities are further filtered by the secondary filter 82. The double filtering structure ensures that impurities cannot enter the air storage bin 2 and the vacuum generator 5. When the vacuum generator 5 needs to be disassembled for maintenance, first loosen the bolt 96 to release the limit on the clamp 95, and then release the clamping force on the connecting pipe 1 91 and the connecting pipe 2 92. Then slide the connecting pipe 1 91 along the direction of the slide groove 94 to make the protrusion 93 on the inner wall disengage from the slide groove 94 of the connecting pipe 2 92, and the delivery pipe 4 can be separated from the vacuum generator 5; when installing, the operation is reversed, align the protrusion 93 with the slide groove 94, insert it and slide it into place, and fasten the connecting pipe 1 91 and the connecting pipe 2 92 with the bolt 96 and the clamp 95 to achieve quick disassembly and assembly.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A self-sealing vacuum suction cup, comprising a suction cup body (1), characterized in that: The top of the suction cup body (1) is fixedly connected to an air storage bin (2), and the end of the air storage bin (2) away from the suction cup body (1) is fixedly connected to a sealing tube (3), and the end of the sealing tube (3) away from the air storage bin (2) is fixedly installed with a delivery pipe (4), and the end of the delivery pipe (4) away from the sealing tube (3) is installed with a vacuum generator (5), and a disassembly assembly (9) is provided between the delivery pipe (4) and the vacuum generator (5), and a sealing assembly (6) and a filter assembly (8) are provided inside the sealing tube (3). The bottom of the suction cup body (1) is fixedly connected with a sealing lip outer layer (10), a sealing lip middle layer (11) and a sealing lip inner layer (12) in sequence from the outside to the inside, and the bottom of the suction cup body (1) is provided with an air extraction hole 1 (13) and an air extraction hole 2 (14), and the sealing lip outer layer (10), the sealing lip middle layer (11) and the sealing lip inner layer (12) are provided. The interior of the sealing lip inner layer (12) is fixedly connected with a connecting block 1 (15), a connecting block 2 (16) is installed on the top of the connecting block 1 (15), and a memory alloy gasket (17) is fixedly connected between the connecting block 1 (15) and the connecting block 2 (16). The interior of the sealing lip outer layer (10), the sealing lip middle layer (11) and the sealing lip inner layer (12) are all provided with a card slot (18), and the connecting block 1 (15) and the connecting block 2 (16) are both card-engaged with the card slot (18). The materials of the sealing lip outer layer (10), the sealing lip middle layer (11) and the sealing lip inner layer (12) are specifically set to chloroprene rubber, fluororubber and polyurethane rubber in sequence. The gas storage bin (2) is connected to the internal space of the delivery pipe (4) through the sealing tube (3), and the sealing component (6) is arranged directly above the filter component (8).

2. A self-sealing vacuum suction cup according to claim 1, characterized in that: The sealing assembly (6) comprises a one-way valve (61), one end of the one-way valve (61) close to the sealing tube (3) is fixedly connected to a threaded rod (62), the threaded rod (62) is threadedly connected to the outside of the sealing tube (3), one end of the threaded rod (62) close to the sealing tube (3) is fixedly connected to a valve head (63), and one end of the threaded rod (62) away from the sealing tube (3) is fixedly connected to the one-way valve (61), a pressure sensor (65) is installed inside the sealing tube (3), and a display (66) is installed on the outer wall of the gas storage bin (2).

3. The self-sealing vacuum suction cup according to claim 1, characterized in that: The filter assembly (8) comprises a moving block (81), which is installed inside the sealing tube (3). One end of the moving block (81) close to the sealing tube (3) is fixedly connected to a primary filter screen (83), the top and bottom of the primary filter screen (83) are fixedly connected to a secondary filter screen (82), and one end of the moving block (81) away from the sealing tube (3) is fixedly connected to a pull ring (84).

4. The self-sealing vacuum suction cup according to claim 1, characterized in that: The disassembly assembly (9) includes a connecting pipe (91), wherein the connecting pipe (91) is fixedly connected to a side of the vacuum generator (5) close to the delivery pipe (4), and a connecting pipe (92) is fixedly connected to an end of the delivery pipe (4) close to the vacuum generator (5). The inner wall of the connecting pipe (91) is evenly fixedly connected with a protrusion (93), and a sliding groove (94) is provided at an end of the connecting pipe (92) close to the protrusion (93). A pair of clamps (95) are installed between the connecting pipe (91) and the connecting pipe (92), and a bolt (96) is installed between the pair of clamps (95).

5. The self-sealing vacuum suction cup according to claim 2, characterized in that: A screw hole (64) is provided inside the sealing tube (3), the threaded rod (62) is threadedly connected to the middle of the screw hole (64), the valve head (63) is rotatably connected to the inside of the sealing tube (3), and the pressure sensor (65) is electrically connected to the display (66).

6. The self-sealing vacuum suction cup according to claim 3, characterized in that: The secondary filter (82) and the primary filter (83) are both installed directly above the gas storage bin (2).

7. The self-sealing vacuum suction cup according to claim 4, characterized in that: The protrusion (93) is slidably connected to the middle portion of the sliding groove (94).

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