Adjustable negative pressure vacuum cupping device

By designing an adjustable negative pressure vacuum cupping device, and utilizing elastic inserts and connectors to achieve a detachable connection between the cupping body and the negative pressure gauge, the problem of resource waste when using multiple sets of cupping bodies is solved, and the convenience and safety of the device are improved.

CN121265895BActive Publication Date: 2026-05-22WUHAN THIRD HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN THIRD HOSPITAL
Filing Date
2025-12-09
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

Existing negative pressure vacuum cupping devices require a negative pressure gauge for each set of cups when using multiple sets of cups, resulting in a waste of resources.

Method used

An adjustable negative pressure vacuum cupping device was designed. The cupping body and the negative pressure gauge are detachably connected by the cooperation of the elastic plug and the connector. The silicone sealing ring ensures sealing and comfort. The negative pressure is generated by the air pump and the connection is disconnected by pulling the lever.

Benefits of technology

It enables flexible connection and disconnection between the tank and the negative pressure gauge, reduces resource waste, ensures sealing and user comfort, and improves the convenience and safety of the device.

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Patent Text Reader

Abstract

The present application relates to the technical field of vacuum cupping device, in particular to an adjustable negative pressure vacuum cupping device, which comprises a cup body, a negative pressure gauge arranged at the end of the cup body, a connecting assembly arranged between the negative pressure gauge and the cup body, and a suction head communicated with the cup body; a suction assembly arranged in the suction head, the suction assembly comprising a sealing column arranged in the suction head; a silica gel sealing ring arranged at the open end of the cup body, and a mounting assembly arranged between the silica gel sealing ring and the open end of the cup body; the beneficial effects are as follows: the elastic plug and the third receiving groove are matched to realize the connection between the suction head and the connecting head, thereby realizing the connection between the negative pressure gauge and the cup body; after the gas in the cup body is extracted by the air pump to form negative pressure, the plug is moved out of the third receiving groove by pulling the pull rod, at this time, the connection between the cup body and the negative pressure gauge can be disconnected, and the elastic plug post blocks the communication between the suction head and the outside to ensure the negative pressure in the cup body.
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Description

Technical Field

[0001] This invention relates to the field of vacuum cupping technology, specifically to an adjustable negative pressure vacuum cupping device. Background Technology

[0002] The negative pressure vacuum cupping device is a flameless cupping instrument that creates a vacuum negative pressure state by drawing air. It consists of a vacuum gun, cups, and connecting tubes. The cups are made of transparent material to facilitate observation of skin changes. The negative pressure value can be adjusted according to the individual's constitution. It is suitable for medical institutions and home health care.

[0003] In the prior art, Chinese Utility Model No. CN223365969U discloses an adjustable negative pressure vacuum cupping device, including a cupping device and a cupping body. This utility model, by setting up a functional mechanism and a negative pressure gauge, uses a silicone ring as a carrier for red light therapy lamp strips, which are closely attached to the cupping body. The red light irradiation simulates the warm stimulation of traditional cupping, promoting blood circulation, relieving muscle tension, and enhancing detoxification and beauty effects, thus making up for the lack of temperature-based therapeutic effects in existing cupping devices. The wiring port facilitates connection to an external power source, ensuring stable operation of the therapeutic function. Users can flexibly adjust the treatment mode. Multiple red light therapy lamp strips are arranged in a ring at equal intervals to ensure uniform and comprehensive irradiation. At the same time, the setting of the air extraction head and the negative pressure gauge allows users to quickly extract air from the cupping body and create the required negative pressure, while avoiding discomfort or safety risks. These settings together improve the therapeutic effect and user experience of the cupping device, making it safer, more convenient, and more efficient.

[0004] In the above technology, the air extraction head and the negative pressure gauge work together to enable users to quickly extract air from the can and create the required negative pressure. However, the connection method between the air extraction head and the negative pressure gauge is not disclosed in the above technical solution. If the negative pressure inside the can is maintained by the negative pressure gauge, when using multiple sets of negative pressure vacuum cupping devices, each set of cans needs to be equipped with a negative pressure gauge, which will result in a waste of resources. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable negative pressure vacuum cupping device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An adjustable negative pressure vacuum cupping device includes:

[0008] A tank body, on which a negative pressure gauge is provided, and a connecting component is provided between the negative pressure gauge and the tank body for connecting the tank body and the negative pressure gauge, the connecting component including an air extraction head communicating with the tank body;

[0009] An extraction assembly is disposed inside the extraction head for extracting gas from inside the tank. The extraction assembly includes a sealing column disposed inside the extraction head.

[0010] A silicone sealing ring is disposed at the open end of the tank body, and an installation assembly is provided between the silicone sealing ring and the open end of the tank body for installing the silicone sealing ring. The installation assembly includes an installation plate connected to the silicone sealing ring.

[0011] Furthermore, the connecting assembly also includes a connector disposed on the negative pressure gauge, the connector being sleeved on the outside of the suction head;

[0012] The other end of the negative pressure gauge is connected to a connecting pipe, and the other end of the connecting pipe is connected to an air pump.

[0013] Furthermore, a limit ring is installed at the position of the suction head corresponding to the position of the connector;

[0014] The connector has a groove at the position corresponding to the limiting ring. A first extrusion plate is inserted into the groove, and a second air storage bag is provided between the first extrusion plate and the groove.

[0015] Furthermore, the suction head is provided with at least one set of third storage slots, and the connector is provided with a fourth storage slot at the position corresponding to the third storage slot. The fourth storage slot is provided with an insert block inside, and a fourth return spring is provided between the insert block and the fourth storage slot. The insert block is elastically disposed inside the fourth storage slot by the fourth return spring.

[0016] The fourth storage slot has a through hole that penetrates the outer wall of the connector. A pull rod is inserted into the through hole. One end of the pull rod is connected to the plug, and the other end of the pull rod away from the plug extends through the through hole to the outside of the connector.

[0017] Furthermore, a fifth air-storing airbag is provided between the insert block and the interior of the fourth storage slot, and a third exhaust pipe is provided between the fifth air-storing airbag and the second air-storing airbag, and the second air-storing airbag is connected to the fifth air-storing airbag through the third exhaust pipe;

[0018] The connector has an air storage chamber at the position corresponding to the third exhaust pipe. A sealing plate is slidably arranged inside the air storage chamber. A fifth return spring is arranged between the sealing plate and the air storage chamber. The elastic force of the fifth return spring is greater than that of the fourth return spring.

[0019] A fourth exhaust pipe is provided between the gas storage chamber and the third exhaust pipe.

[0020] Furthermore, the sealing column has a clearance groove inside, and the inner wall of the clearance groove has multiple sets of spaced vent grooves. The sealing column also has a vent, which passes through the top of the sealing column and communicates with the clearance groove.

[0021] A slider is slidably disposed inside the relief groove, a second return spring is disposed between the slider and the relief groove, and a matching pin is installed on the slider at the position corresponding to the exhaust port.

[0022] Furthermore, a second storage groove is provided at the position of the slider corresponding to the clearance groove, a support rod is inserted into the interior of the second storage groove, and a third air storage bag is provided between the support rod and the second storage groove;

[0023] A second pressing plate is slidably disposed inside the third storage slot, and a third return spring is disposed between the second pressing plate and the third storage slot. The elastic force of the third return spring is less than that of the fourth return spring.

[0024] A fourth air-storing bladder is provided between the second extrusion plate and the third storage groove, and a second exhaust pipe is provided between the fourth air-storing bladder and the third air-storing bladder.

[0025] Furthermore, the open end of the tank is provided with a mounting groove, the mounting plate is inserted into the inside of the mounting groove, and the silicone sealing ring is connected to the tank through the mounting plate.

[0026] Furthermore, the mounting groove has a fixing groove inside, and the mounting plate has at least one set of symmetrically distributed first storage grooves at the position corresponding to the fixing groove;

[0027] Each of the first storage slots has a fixing block inserted inside, and each fixing block and the corresponding first storage slot has a first reset spring.

[0028] Furthermore, a first air storage chamber is provided between each of the fixed blocks and the corresponding first storage slot, and a first exhaust pipe is provided between the silicone sealing ring and each of the first air storage chambers.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] 1. This invention achieves the connection between the suction head and the connector through the cooperation of the elastically set insert and the third storage slot, thereby connecting the negative pressure gauge to the tank. After the air pump draws gas from the inside of the tank to form a negative pressure, the insert is moved out of the third storage slot by pulling the lever. At this time, the connection between the tank and the negative pressure gauge can be disconnected. The elastically set bolt blocks the connection between the suction head and the outside, ensuring the negative pressure inside the tank.

[0031] 2. The silicone sealing ring design balances sealing and comfort. The silicone sealing ring connects to the tank body through the mounting groove and mounting plate, facilitating disassembly and replacement. However, during use, when a negative pressure forms inside the tank, the silicone sealing ring is compressed. The gas inside the silicone sealing ring is discharged into the first gas storage chamber through the first exhaust pipe. The first gas storage chamber expands, pushing the fixing block into the fixing groove to ensure the connection between the silicone sealing ring and the tank body. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0033] Figure 2 This is a schematic cross-sectional view of the three-dimensional structure of the present invention;

[0034] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0035] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point B;

[0036] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point C;

[0037] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point D.

[0038] In the diagram: 1. Tank body; 2. Suction head; 3. Connector; 4. Negative pressure gauge; 5. Connecting pipe; 6. Mounting groove; 7. Mounting plate; 8. Silicone sealing ring; 9. First exhaust pipe; 10. First storage groove; 11. Fixing groove; 12. Fixing block; 13. First gas storage chamber; 14. First return spring; 15. Limiting ring; 16. Sealing column; 17. Relief groove; 18. Exhaust port; 19. Bolt; 20. Sliding block; 21. Second return spring; 22. Exhaust groove; 23. Groove; 24. First extrusion plate; 25. ... 25. Second air reservoir bladder, 26. Support rod, 27. Second storage slot, 28. Third air reservoir bladder, 29. Second exhaust pipe, 30. Third storage slot, 31. Third return spring, 32. Fourth air reservoir bladder, 33. Second compression plate, 34. Insert block, 35. Fourth storage slot, 36. Fourth return spring, 37. Through hole, 38. Pull rod, 39. Third exhaust pipe, 40. Fifth return spring, 41. Fourth exhaust pipe, 42. Sealing plate, 43. Air reservoir, 44. Detailed Implementation

[0039] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0040] Example 1: Please refer to Figures 1 to 6 The present invention provides a technical solution: an adjustable negative pressure vacuum cupping device, comprising:

[0041] Tank 1, with a negative pressure gauge 4 provided at the upper end of the tank 1, and a connecting component provided between the negative pressure gauge 4 and the tank 1 for connecting the tank 1 and the negative pressure gauge 4, the connecting component including an air extraction head 2 communicating with the tank 1;

[0042] An air extraction assembly is disposed inside the air extraction head 2 for extracting gas from inside the tank 1. The air extraction assembly includes a sealing column 16 disposed inside the air extraction head 2.

[0043] A silicone sealing ring 8 is disposed at the open end of the tank body 1, and an installation assembly is provided between the silicone sealing ring 8 and the open end of the tank body 1 for installing the silicone sealing ring 8. The installation assembly includes an installation plate 7 connected to the silicone sealing ring 8.

[0044] The tank 1 is connected to the negative pressure gauge 4 by the connecting component. After the connection is completed, the air can be evacuated from the inside of the tank 1 by the air extraction component to form a negative pressure inside the tank 1. After the negative pressure is formed, the tank 1 can be disconnected from the negative pressure gauge 4 by the connecting component.

[0045] The silicone sealing ring 8 ensures a seal between the can 1 and the user.

[0046] Example 2: Figure 2 and Figures 5-6As shown, the adjustable negative pressure vacuum cupping device disclosed in Embodiment 2 of the present invention has a structure that is basically the same as that in Embodiment 1, except that:

[0047] The connecting assembly also includes a connector 3 that connects to the lower end of the negative pressure gauge 4, and the connector 3 is sleeved on the outside of the suction head 2;

[0048] The other end of the negative pressure gauge 4 is connected to a connecting pipe 5, and the other end of the connecting pipe 5 is connected to an air pump.

[0049] A limit ring 15 is installed on the outer surface of the suction head 2 at the lower end position of the connector 3;

[0050] The lower end of the connector 3 is provided with a groove 23 corresponding to the position of the limiting ring 15. A first extrusion plate 24 is inserted into the groove 23, and a second air storage bag 25 is provided between the upper end of the first extrusion plate 24 and the top of the groove 23.

[0051] At least one set of third storage slots 30 are provided on the outer surface of the suction head 2. A fourth storage slot 35 is provided on the inner wall of the connector head 3 at the position corresponding to the third storage slots 30. An insert block 34 is provided inside the fourth storage slot 35, and a fourth return spring 36 is provided between the end of the insert block 34 and the inner side wall of the fourth storage slot 35. The insert block 34 is elastically disposed inside the fourth storage slot 35 by the fourth return spring 36.

[0052] The fourth storage slot 35 has a through hole 37 on its inner side wall. The through hole 37 penetrates the outer wall of the connector 3, and a pull rod 38 is inserted into the through hole 37. One end of the pull rod 38 is connected to the side wall of the insert block 34, and the end of the pull rod 38 away from the insert block 34 extends to the outside of the connector 3 through the through hole 37.

[0053] By cooperating with the flexible insert 34 and the third storage slot 30, the air extraction head 2 is connected to the connector 3, thereby connecting the negative pressure gauge 4 to the tank 1. After the air pump extracts gas from the inside of the tank 1 to form a negative pressure, the insert 34 is moved out of the third storage slot 30 by pulling the lever 38, at which point the connection between the tank 1 and the negative pressure gauge 4 can be disconnected.

[0054] Example 3: Figure 2 and Figures 5-6 As shown, the adjustable negative pressure vacuum cupping device disclosed in Embodiment 3 of the present invention has a structure that is basically the same as that in Embodiment 2, except that:

[0055] A fifth air-storing airbag 44 is provided between the end of the insert block 34 and the inner sidewall of the fourth storage groove 35. A third exhaust pipe 39 is provided between the fifth air-storing airbag 44 and the second air-storing airbag 25. The second air-storing airbag 25 is connected to the fifth air-storing airbag 44 through the third exhaust pipe 39.

[0056] An air storage chamber 43 is provided inside the connector 3 at a position corresponding to the third exhaust pipe 39. A sealing plate 42 is slidably arranged inside the air storage chamber 43. A fifth return spring 40 is provided between the side wall of the sealing plate 42 and the inner wall of the air storage chamber 43. The elastic force of the fifth return spring 40 is greater than that of the fourth return spring 36.

[0057] A fourth exhaust pipe 41 is provided between the gas storage chamber 43 and the third exhaust pipe 39;

[0058] When the connector 3 is inserted into the outer surface of the suction head 2, the limiting ring 15 will squeeze the first compression plate 24, and the second air storage bladder 25 at the end of the first compression plate 24 will be compressed. At this time, the gas is discharged into the fifth air storage bladder 44 through the third exhaust pipe 39. The fifth air storage bladder 44 expands and pushes the insert 34 into the third receiving groove 30. If the insert 34 does not coincide with the third receiving groove 30, the gas is transported into the air storage chamber 43 through the fourth exhaust pipe 41. At this time, the suction head 2 and the connector 3 cannot be fixed. Then, the connector 3 is rotated, and the connector 3 drives the insert 34 to rotate. When the insert 34 coincides with the third receiving groove 30, under the action of the fifth return spring 40, the gas inside the air storage chamber 43 is discharged into the fifth air storage bladder 44 through the third exhaust pipe 39, pushing the insert 34 into the third receiving groove 30, thus completing the connection between the suction head 2 and the connector 3.

[0059] Example 4: Figure 2 and Figures 5-6 As shown, the adjustable negative pressure vacuum cupping device disclosed in Embodiment 4 of the present invention has a structure that is basically the same as that in Embodiment 3, except that:

[0060] The sealing column 16 has a relief groove 17 at its bottom interior. The inner wall of the relief groove 17 has multiple sets of spaced exhaust grooves 22. The center of the upper end of the sealing column 16 has an exhaust port 18. The exhaust port 18 passes through the top of the sealing column 16 and communicates with the relief groove 17.

[0061] A slider 20 is slidably disposed inside the relief groove 17. A second return spring 21 is disposed between the lower end of the slider 20 and the bottom end of the relief groove 17. A matching pin 19 is installed at the upper end of the slider 20 corresponding to the position of the exhaust port 18.

[0062] The inner top of the clearance groove 17 is provided with a second storage groove 27 corresponding to the upper end of the slider 20. A support rod 26 is inserted into the inner of the second storage groove 27, and a third air storage bag 28 is provided between the upper end of the support rod 26 and the inner top of the second storage groove 27.

[0063] The third storage groove 30 is slidably provided with a second extrusion plate 33, and a third return spring 31 is provided between the end of the second extrusion plate 33 and the inner side wall of the third storage groove 30. The elastic force of the third return spring 31 is less than that of the fourth return spring 36.

[0064] A fourth air-storing bladder 32 is provided between the end of the second extrusion plate 33 and the inner sidewall of the third storage groove 30, and a second exhaust pipe 29 is provided between the fourth air-storing bladder 32 and the third air-storing bladder 28.

[0065] When the suction head 2 is connected to the connector 3, the insert block 34 squeezes the second compression plate 33, the second compression plate 33 compresses the fourth air storage bag 32, and the gas inside the fourth air storage bag 32 is discharged into the third air storage bag 28 through the second exhaust pipe 29. The third air storage bag 28 expands, pushes the support rod 26 to extend, and presses down the bolt 19. At this time, the bolt 19 is no longer inserted into the exhaust port 18, and through the cooperation of the exhaust groove 22, the tank 1 is connected to the negative pressure gauge 4, which facilitates the air pump to draw air.

[0066] After extraction is completed, pull rod 38 is pulled, and pull rod 38 drives the insert block 34 to move out of the third storage slot 30, separating the suction head 2 from the connector 3. At the same time, when the second extrusion plate 33 is no longer extruded, the bolt 19 is lifted into the exhaust port 18 under the action of the second return spring 21, so that the tank 1 is no longer connected to the outside, and the inside of the tank 1 is kept under negative pressure.

[0067] Example 5: Figure 2 and Figures 3-4 As shown, the adjustable negative pressure vacuum cupping device disclosed in Embodiment 5 of the present invention has a structure that is basically the same as that in Embodiment 4, except that:

[0068] The tank body 1 has an installation groove 6 on its open end face, the installation plate 7 is inserted into the installation groove 6, and the silicone sealing ring 8 is connected to the tank body 1 through the installation plate 7.

[0069] The mounting groove 6 has fixing grooves 11 on both sides of its interior sidewalls, and the mounting plate 7 has at least one set of symmetrically distributed first storage grooves 10 on both sides of its sidewalls corresponding to the fixing grooves 11.

[0070] Each of the first storage slots 10 has a fixing block 12 inserted inside, and each of the fixing blocks 12 has a first return spring 14 between its end and the inner wall of the corresponding first storage slot 10.

[0071] A first air storage chamber 13 is provided between the end of each of the fixed blocks 12 and the inner wall of the corresponding first storage groove 10, and a first exhaust pipe 9 is provided between the silicone sealing ring 8 and each of the first air storage chambers 13.

[0072] The silicone sealing ring 8 is designed to balance sealing and comfort. The silicone sealing ring 8 is connected to the tank 1 through the cooperation of the mounting groove 6 and the mounting plate 7, which facilitates disassembly and replacement. However, during use, when a negative pressure is formed inside the tank 1, the silicone sealing ring 8 is compressed. The gas inside the silicone sealing ring 8 is discharged into the first gas storage chamber 13 through the first exhaust pipe 9. The first gas storage chamber 13 expands and pushes the fixing block 12 into the fixing groove 11, ensuring the connection between the silicone sealing ring 8 and the tank 1.

[0073] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An adjustable negative pressure vacuum cupping device, characterized in that, include: A tank (1) is provided with a negative pressure gauge (4), and a connecting component is provided between the negative pressure gauge (4) and the tank (1) for connecting the tank (1) and the negative pressure gauge (4). The connecting component includes an air extraction head (2) that communicates with the tank (1). An air extraction assembly is disposed inside the air extraction head (2) for extracting gas from the tank (1). The air extraction assembly includes a sealing column (16) disposed inside the air extraction head (2). A silicone sealing ring (8) is disposed at the open end of the tank body (1), and an installation assembly is provided between the silicone sealing ring (8) and the open end of the tank body (1) for installing the silicone sealing ring (8). The installation assembly includes an installation plate (7) connected to the silicone sealing ring (8). The connecting assembly also includes a connector (3) that is connected to the negative pressure gauge (4), and the connector (3) is sleeved on the outside of the suction head (2); The other end of the negative pressure gauge (4) is connected to a connecting pipe (5), and the other end of the connecting pipe (5) is connected to an air pump. The suction head (2) is provided with at least one set of third storage slots (30), and the connector (3) is provided with a fourth storage slot (35) at the position corresponding to the third storage slot (30). The fourth storage slot (35) is provided with a plug (34), and a fourth return spring (36) is provided between the plug (34) and the fourth storage slot (35). The plug (34) is elastically disposed inside the fourth storage slot (35) by the fourth return spring (36). The fourth storage slot (35) has a through hole (37) inside, the through hole (37) penetrates the outer wall of the connector (3), and a pull rod (38) is inserted into the through hole (37). One end of the pull rod (38) is connected to the plug (34), and the other end of the pull rod (38) away from the plug (34) extends through the through hole (37) to the outside of the connector (3). The sealing column (16) has a relief groove (17) inside. The inner wall of the relief groove (17) has multiple sets of spaced exhaust grooves (22). The sealing column (16) has an exhaust port (18) that passes through the top of the sealing column (16) and communicates with the relief groove (17). The clearance groove (17) is slidably provided with a slider (20), a second return spring (21) is provided between the slider (20) and the clearance groove (17), and a suitable bolt (19) is installed on the slider (20) at the position corresponding to the exhaust port (18).

2. The adjustable negative pressure vacuum cupping device according to claim 1, characterized in that, A limit ring (15) is installed at the position of the suction head (2) corresponding to the position of the connector (3); The connector (3) has a groove (23) at the position corresponding to the limiting ring (15). A first extrusion plate (24) is inserted into the groove (23), and a second air storage bag (25) is provided between the first extrusion plate (24) and the groove (23).

3. The adjustable negative pressure vacuum cupping device according to claim 2, characterized in that, A fifth air-storing airbag (44) is provided between the interior of the insert block (34) and the fourth storage slot (35). A third exhaust pipe (39) is provided between the fifth air-storing airbag (44) and the second air-storing airbag (25). The second air-storing airbag (25) is connected to the fifth air-storing airbag (44) through the third exhaust pipe (39). The connector (3) is provided with an air storage chamber (43) at the position corresponding to the third exhaust pipe (39). A sealing plate (42) is slidably arranged inside the air storage chamber (43). A fifth return spring (40) is arranged between the sealing plate (42) and the air storage chamber (43). The elastic force of the fifth return spring (40) is greater than that of the fourth return spring (36). A fourth exhaust pipe (41) is provided between the gas storage chamber (43) and the third exhaust pipe (39).

4. The adjustable negative pressure vacuum cupping device according to claim 3, characterized in that, The clearance groove (17) is provided with a second storage groove (27) at the position corresponding to the slider (20). A support rod (26) is inserted into the second storage groove (27), and a third air storage bag (28) is provided between the support rod (26) and the second storage groove (27). The third storage groove (30) is slidably provided with a second extrusion plate (33), and a third return spring (31) is provided between the second extrusion plate (33) and the third storage groove (30). The elastic force of the third return spring (31) is less than that of the fourth return spring (36). A fourth air-storing bladder (32) is provided between the second extrusion plate (33) and the third storage groove (30), and a second exhaust pipe (29) is provided between the fourth air-storing bladder (32) and the third air-storing bladder (28).

5. The adjustable negative pressure vacuum cupping device according to claim 1, characterized in that, The tank (1) has an opening end with a mounting groove (6), and the mounting plate (7) is inserted into the inside of the mounting groove (6). The silicone sealing ring (8) is connected to the tank (1) through the mounting plate (7).

6. The adjustable negative pressure vacuum cupping device according to claim 5, characterized in that, The mounting slot (6) has a fixing slot (11) inside, and the mounting plate (7) has at least one set of symmetrically distributed first storage slots (10) at the position corresponding to the fixing slot (11). Each of the first storage slots (10) is provided with a fixing block (12) inserted inside, and each fixing block (12) and the corresponding first storage slot (10) are provided with a first reset spring (14).

7. The adjustable negative pressure vacuum cupping device according to claim 6, characterized in that, Each of the fixed blocks (12) and the corresponding first storage slot (10) is provided with a first air storage chamber (13), and each of the silicone sealing rings (8) and the first air storage chambers (13) is provided with a first exhaust pipe (9).