CN210991646U

CN210991646U - Small medical cupping device with pressure relief mechanism

Info

Publication number: CN210991646U
Application number: CN201921533080.1U
Authority: CN
Inventors: 胡艳美; 李建萍; 杨建梅; 牛燕霞; 王晓宇; 王鑫; 王茜
Original assignee: SHANGHAI XUHUI DISTRICT CENTRAL HOSPITAL
Current assignee: SHANGHAI XUHUI DISTRICT CENTRAL HOSPITAL
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-07-14
Anticipated expiration: 2029-09-16

Abstract

The utility model belongs to the technical field of medical instruments, and relates to a small medical cupping device with a pressure relief mechanism, which comprises a cupping barrel, a piston rod, a rubber plug, a spring and a pressure release rod; the can pulling cylinder is a hollow cylinder with openings at two ends, and a clamping seat is arranged at the upper part of a can opening at the upper end of the can pulling cylinder; a plurality of clamping grooves are formed in the piston rod; the upper end of the piston rod is provided with a handle, the lower end of the piston rod is provided with a connector, and the piston rod is also provided with a first through hole; the rubber plug is provided with a connecting groove and a second through hole; the upper part of the pressure release rod is sleeved with a spring; the piston rod is connected with the rubber plug; the pressure release rod penetrates through the first through hole and the second through hole and is movably connected with the piston rod and the rubber plug; the piston rod is movably connected with the cupping cylinder. Its advantages are: when the cupping device is used for cupping, the pressure can be directly released from the inside of the cupping device, so that the cupping barrel is separated from the skin, and the cupping device is convenient to operate, simple in structure, flexible in stretching and good in practicability, and is suitable for the human body parts with smaller cupping areas, such as joints, the forehead and the like.

Description

Small medical cupping device with pressure relief mechanism

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a small-size medical suction cup with pressure release mechanism.

Background

Cupping therapy is widely applied to the field of medical clinical and is a common traditional Chinese medicine treatment method. Also called cupping jar gas and suction tube therapy. The pot is used as a device, and the air in the pot is discharged by the heat of combustion to generate negative pressure, so that the negative pressure is absorbed on the skin to cause the phenomenon of skin congestion at the pulled part, thereby achieving the purpose of treating diseases. However, the area of some human body parts such as joints, denomination and the like which can be used for cupping is small, the traditional method is difficult to realize cupping operation, negative pressure is generated by using naked fire in the traditional method, the requirement on an operator is high, certain danger is caused, and scalding is easy to occur.

Chinese patent documents: CN208031585U discloses a cupping device for traditional Chinese medicine, which comprises a cup body, an injection tube and a connecting column, arc-shaped transparent sheets are embedded and bonded in the central parts below the front and back surfaces of the tank body, a hollow layer is arranged in the tank body, the inner wall of the tank body is provided with a through hole, the upper end of the tank body is bonded with a connecting piece, the connecting piece is provided with an insertion hole, the side wall of the jack is bonded with a sealing ring, the side surface of the connecting piece is provided with a slot, the bottom end of the injection tube is inserted into the jack, a push rod is inserted into the injection tube, a rubber plug is arranged at the bottom end of the push rod, a push plate is bonded at the top end of the push rod, the top end of the injection tube is bonded with a clamping plate, the bottom end of the side surface of the connecting column is bonded with an inserting column, the inserting column is inserted into the slot, the side of the connecting column is bonded with a supporting plate, and the side of the connecting column is bonded with a plurality of fixing plates. The cupping device patent that this patent document discloses simple structure, the time of training and the operation degree of difficulty have been reduced, but this patent document does not provide the product scheme of solving the less human body part of cup area, and this patent document is because the difference of injection tube and jar body volume, lead to the injection tube to need to take out bigger stroke, can guarantee the inside negative pressure demand of the jar body of the bigger volume, its treatment back, when getting jar, still need to adopt traditional jar mode of getting, have the requirement to the operation experience, need to be careful, in order to avoid making the patient produce uncomfortable and feel.

Chinese patent documents: CN2671552Y discloses a cupping device, this cupping device is by the air extraction rod, hard plastic jar and rubber piston triplex, the air extraction rod main part is the gusset of two rectangular orthogonal forks, axial equal altitude is equipped with multiunit gill shape triangle bayonet socket on the gusset, the air extraction rod both ends are equipped with air extraction handle and discoid piston mount pad respectively, hard plastic jar is transparent hollow cylinder, one end is equipped with the end cover, it slightly is greater than the square opening of gusset width to open its diagonal on the end cover, the other end is smooth jar mouth, rubber piston is thick disc, one side is equipped with annular mounting groove, its external diameter and hard plastic jar's internal diameter elasticity interference fit, the piston mount pad of air extraction rod inserts hard plastic jar from the end cover end, pack into the mounting groove on the rubber piston, this patent literature beneficial effect is: simple structure, convenient carrying, adjustable operation, good use performance, low manufacturing cost, disposable use and capability of preventing cross infection. However, the problem that the traditional cupping method is complex in operation and has certain requirements after treatment and discomfort of a patient can be caused is not solved, and the cupping device disclosed in the patent document adopts the matching of the end cover structure with the square opening and the orthogonal rib plate, so that the rotational freedom degree of the cupping device during stretching is severely limited, and the cupping device can be clamped by the square opening after being slightly rotated, and the operation is inconvenient.

In summary, there is a need for a small medical cupping device with a pressure relief mechanism, which can avoid the traditional way of taking and relieving pressure, directly release pressure from the inside of the device, has the advantages of convenient operation, simple structure, flexible expansion and good practicability, and is suitable for human body parts with small cupping areas, such as joints, faces and forehead parts.

Disclosure of Invention

The utility model aims at providing a can avoid traditional jar pressure release mode of getting, from the inside direct release pressure of device, and convenient operation, simple structure, flexible, the practicality is good, is applicable to the small-size medical suction cup with pressure release mechanism at the less human body position of cup areas such as joint, face portion.

In order to achieve the purpose, the utility model adopts the technical proposal that:

a small medical cupping device with a pressure relief mechanism comprises a cupping barrel, a piston rod, a rubber plug, a spring and a pressure release rod; the can drawing cylinder is a hollow cylinder with openings at two ends; the upper part of the tank opening at the upper end of the tank pulling cylinder is provided with a clamping seat; the piston rod is provided with a plurality of clamping grooves; the upper end of the piston rod is provided with a handle, and the lower end of the piston rod is provided with a connector; the piston rod is provided with a first through hole which penetrates through the piston rod; the rubber plug is provided with a connecting groove and a penetrating second through hole; the spring is sleeved on the upper part of the pressure release rod; the piston rod is connected with the rubber plug; the pressure release rod penetrates through the first through hole and the second through hole and is movably connected with the piston rod and the rubber plug; the piston rod is movably connected with the cupping cylinder.

As a preferred technical scheme, the cupping cylinder is made of transparent medical plastic materials, a pressure flange is arranged at the opening of the upper end of the cupping cylinder, and a protection flange is arranged at the opening of the lower end of the cupping cylinder.

As a preferred technical scheme, the clamping seat stretches across the upper end of the cupping cylinder right above the cup opening and is far away from the center of the upper end of the cupping cylinder in the horizontal direction, and the clamping groove is matched with the clamping seat.

As a preferred technical scheme, the piston rod is of a cross rod structure formed by orthogonal wide structural ribs and narrow structural ribs, and a plurality of clamping grooves are formed in two sides of each wide structural rib.

Preferably, the inner diameter of the upper part of the first through hole is larger than that of the lower part of the first through hole, the inner diameter of the lower part of the first through hole is smaller than that of the second through hole, and the centers of the first through hole and the second through hole are on the same axis.

As a preferable technical solution, the pressure release rod is composed of a pressure release rod body and a pressure release plug, and the diameter of the pressure release plug is larger than that of the pressure release rod body.

As a preferable technical scheme, the pressure release rod body is of a cylindrical structure, the outer diameter of the upper part of the pressure release rod body is larger than that of the lower part of the pressure release rod body, the lower end of the pressure release rod body is provided with a sleeve joint, the pressure release plug is made of medical rubber, a sleeve joint groove is formed in the pressure release plug, and the sleeve joint is connected with the sleeve joint groove in a matched mode.

As a preferable technical scheme, the diameter size of the pressure release plug is consistent with that of the second through hole, the outer diameter size of the lower part of the pressure release rod body is smaller than that of the inner diameter size of the lower part of the first through hole, and the outer diameter size of the upper part of the pressure release rod body is smaller than that of the upper part of the first through hole.

As an optimal technical scheme, the rubber plug is made of medical rubber, and the matching mode between the rubber plug and the cupping barrel belongs to elastic interference fit.

The utility model has the advantages that:

1. the pressure release rod, the first through hole, the second through hole and the spring form a pressure release mechanism, the inside of the cupping cylinder can be communicated with the outside by pressing the pressure release rod, the internal and external air pressure is balanced, the cupping cylinder is taken down, and the spring mechanism can enable the pressure release rod to keep a bouncing state under a normal condition so as to enable the inside of the cupping cylinder to keep a closed state.

2. The piston rod is a cross rod structure formed by orthogonal wide structural ribs and narrow structural ribs, the structural strength of the piston rod is guaranteed, a plurality of clamping grooves are arranged on two sides of the wide structural ribs, the clamping seat stretches across the position right above a cup opening of the upper end of the cupping cylinder, the clamping grooves are matched with the clamping seat to continuously maintain negative pressure in the cupping cylinder, the cupping efficiency is kept, the clamping seat is far away from the center of the cup opening of the upper end of the cupping cylinder in the horizontal direction, the wide structural ribs can smoothly avoid the clamping seat and can freely pass through the clamping seat, and the limitation of telescopic negative pressure operation cannot be caused.

3. The device is simple, convenient and fast to carry, convenient and flexible to operate, can adjust the negative pressure condition in the cupping barrel through the movement of the piston rod, and is suitable for the human body parts with smaller cupping areas, such as joints, forehead parts and the like.

Drawings

Fig. 1 is a three-dimensional schematic view of each part of a small medical cupping device with a pressure relief mechanism of the utility model.

Fig. 2 is a sectional view of each part of a small medical cupping device with a pressure relief mechanism.

Fig. 3 is an enlarged partial schematic view of a in fig. 1.

FIG. 4 is a cross-sectional view of the pressure-releasing rod and the piston rod of the small-sized medical cupping device with a pressure-releasing mechanism of the present invention in a closed state.

FIG. 5 is a drawing illustrating the cooperation between the clamp groove and the clamp seat of the small-sized medical cupping device with a pressure relief mechanism.

Fig. 6 is a partially enlarged schematic view of B in fig. 4.

FIG. 7 is a sectional view of the pressure releasing rod and the piston rod of the small-sized medical cupping device with a pressure releasing mechanism of the present invention.

Fig. 8 is a schematic perspective view of another small-sized medical cupping device with a pressure relief mechanism.

Detailed Description

The present invention will be further described with reference to the following detailed description. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications can be made by those skilled in the art after reading the disclosure of the present invention, and such equivalents also fall within the scope of the appended claims.

The reference numerals and components referred to in the drawings are as follows:

1. can pulling barrel 2, piston rod 3, rubber plug

4. Spring 5, pressure release rod 6, pressure turned edge

7. Protective flanging 8, clamping seat 9, clamping groove

10. Handle 11, connector 12, first through hole

13. Connecting groove 14, second through hole 15, pressure release rod body

16. Pressure release plug 17, sleeve joint 18 and sleeve groove

Example 1

Referring to fig. 1, fig. 1 is a perspective view of each component of a small medical cupping device with a pressure relief mechanism of the present invention. A small medical cupping device with a pressure relief mechanism is characterized by comprising a cupping barrel 1, a piston rod 2, a rubber plug 3, a spring 4 and a pressure release rod 5; the cupping glass is characterized in that the cupping glass cylinder 1 is a hollow cylinder with openings at two ends and is made of transparent medical plastic materials, a pressed flanging 6 is arranged at the upper end can opening, a protection flanging 7 is arranged at the lower end can opening, a clamping seat 8 is arranged on the upper end can opening of the cupping glass cylinder 1, the clamping seat 8 stretches across the upper end can opening of the cupping glass cylinder 1, and the clamping seat is far away from the center of the upper end can opening of the cupping glass cylinder 1 in the horizontal direction; the piston rod 2 is of a cross rod structure formed by orthogonal wide structural ribs and narrow structural ribs, a plurality of clamping grooves 9 are formed in two sides of each wide structural rib, and the clamping grooves 9 are matched with the clamping seats 8; the upper end of the piston rod 2 is provided with a flat cylindrical handle 10, the radius of the handle 10 is smaller than the distance from the clamping seat 8 to the central axis of the cupping barrel 1, and the lower end of the piston rod 2 is provided with a connector 11. Please refer to fig. 2, fig. 2 is a sectional view of each component of a small medical cupping device with a pressure relief mechanism of the present invention. A first through hole 12 is formed in the piston rod 2 in a penetrating mode, the inner diameter of the upper portion of the first through hole 12 is larger than that of the lower portion of the first through hole, a connecting groove 13 and a second through hole 14 are formed in the rubber plug 3 in a penetrating mode, and the diameter of the first through hole 12 is smaller than that of the second through hole 14; the connecting head 11 of the piston rod 2 is connected with the connecting groove 13 of the rubber plug 3; the pressure release rod 5 is composed of a pressure release rod body 15 and a pressure release plug 16, the pressure release rod body 15 is of a cylindrical structure, the outer diameter of the upper portion of the pressure release rod body is larger than that of the lower portion of the pressure release rod body, a sleeve joint 17 is arranged at the lower end of the pressure release rod body, the pressure release plug 16 is made of medical rubber, a sleeve joint groove 18 is formed in the pressure release plug 16, and the sleeve joint 17 is connected with the sleeve joint groove 18 in a matched mode. Referring to fig. 3, fig. 3 is a partially enlarged view of a in fig. 1. The spring 4 is sleeved on the pressure release rod 5, the diameter of the pressure release plug 16 is larger than that of the pressure release rod body 15, the diameter of the pressure release plug 16 is consistent with that of the second through hole 14, the outer diameter of the lower part of the pressure release rod 5 is smaller than the inner diameter of the lower part of the first through hole 12, the outer diameter of the upper part of the pressure release rod 5 is smaller than that of the upper part of the first through hole 12, and the pressure release rod 5 penetrates through the first through hole 12 and the second through hole 14 to be movably connected with the piston rod 2 and the rubber plug 3. Please refer to fig. 4, fig. 4 is a cross-sectional view of the pressure releasing rod and the piston rod of the small-sized medical cupping device with a pressure releasing mechanism of the present invention in a sealed state. Under the normal bounce state, the top of the pressure release rod 5 is higher than the top of the piston rod 2, and the pressure release plug 16 is hermetically matched with the second through hole 14; the piston rod 2 with pull out a jar 1 activity and link to each other, the rubber buffer 3 with pull out the cooperation mode between the jar 1 and belong to elastic interference fit.

During the use, clean with hot towel before cup to patient's joint department and wait to pull out the position, reuse disinfection gauze wipes futilely the back, will be through disinfection processing small-size medical suction cup jar mouth with pressure release mechanism aim at the treatment position, rotating piston rod 2 makes wide structure muscle avoid the position of cassette 8, another hand holds and pulls out a jar section of thick bamboo 1, and the other hand is held handle 10 and can be cooperated pressurized turn-ups 6 slowly upwards take out the piston rod to observe the reaction by the treatment position, when judging that the negative pressure effect is normal, rotatable piston rod 2. Please refer to fig. 5, fig. 5 is a schematic view of the engagement between the clamping groove and the clamping seat of the small-sized medical cupping device with pressure release mechanism of the present invention. The clamping grooves 9 on the wide structural ribs are aligned with the clamping seats 8, the position height of the piston rod 2 is locked, and the negative pressure effect when the inner cavity of the cupping glass 1 is maintained for treatment is ensured; after treatment, the pot is taken out. Please refer to fig. 6 and 7; fig. 6 is a partially enlarged schematic view of B in fig. 4, and fig. 7 is a sectional view showing the pressure releasing rod and the pressure releasing state of the piston rod of the small-sized medical cupping device with a pressure releasing mechanism according to the present invention. The lower end pressure releasing plug 16 is separated from the rubber plug 3 by pressing the pressure releasing rod 5 protruding from the piston rod 2, air enters the cupping jar through the gap, the cupping jar 1 is separated from the skin, the cupping jar 1 is separated from the piston rod 2, and the cupping jar is cleaned and sterilized.

It should be noted that the utility model is simple, convenient to carry and flexible to operate, can adjust the negative pressure condition in the cupping barrel 1 by the movement of the piston rod 2, and is suitable for the human body parts with smaller cupping areas such as joints, forehead parts and the like; the cupping glass tube 1 is made of transparent medical plastic materials, and the transparent structure of the cupping glass tube can facilitate doctors to observe the cupping effect; the upper end part of the cupping glass 2 is provided with a pressed flanging 6 which can provide a supporting function and assist in stretching during stretching operation; the protective flanging 7 is arranged at the position of the can opening at the lower end of the can pulling barrel 1, so that the smoothness of the part connected with the skin is ensured, the comfort of a patient is prevented from being influenced in treatment, and the skin is prevented from being injured; the piston rod 2 is of a cross rod structure formed by orthogonal wide structural ribs and narrow structural ribs, the structural strength of the piston rod 2 is guaranteed, a plurality of clamping grooves 9 are formed in two sides of the wide structural ribs, the clamping seat 8 stretches across the position right above the cup opening in the upper end of the cup drawing cylinder 1, the clamping grooves 9 are matched with the clamping seat 8 to continuously maintain negative pressure in the cup drawing cylinder 1, the cupping efficacy is kept, the clamping seat 8 is far away from the center of the cup opening in the upper end of the cup drawing cylinder 1 in the horizontal direction, the wide structural ribs can smoothly pass through the clamping seat 8 and can freely pass through the clamping seat, and the limitation of telescopic negative pressure operation cannot be caused; the matching mode between the rubber plug 3 and the cupping barrel 1 belongs to elastic interference fit, and the sealing property in the cupping barrel 1 is fully ensured; the pressure release rod 5, the first through hole 12 and the second through hole 14 form a pressure release mechanism through the spring 4, the inside of the cupping barrel 1 can be communicated with the outside through pressing the pressure release rod 5, internal and external air pressure is balanced, the cupping barrel 1 is taken down, the spring 4 mechanism can enable the pressure release rod 5 to keep a bouncing state under a normal condition, the inside of the cupping barrel 1 is kept in a closed state, the diameter of the pressure release rod 5 is smaller than that of the first through hole 12, and air can enter the inside of the cupping barrel after pressing.

Example 2

Referring to fig. 8, fig. 8 is a perspective view of another small-sized medical cupping device with pressure relief mechanism of the present invention. A small medical cupping device with a pressure relief mechanism is characterized by comprising a cupping barrel 1, a piston rod 2, a rubber plug 3, a spring 4 (not shown in the figure) and a pressure release rod 5; the cupping glass tube 1 is a hollow cylinder with openings at two ends and is made of transparent medical plastic materials, a pressed flanging 6 is arranged at the cup opening at the upper end of the cupping glass tube, the edge of the cup opening at the lower end of the cupping glass tube is subjected to smooth round angle treatment, a clamping seat 8 is arranged on the cup opening at the upper end of the cupping glass tube 1, and the clamping seat 8 stretches over the cup opening at the upper end of the cupping glass tube 1 and is far away from the center of the cup opening at the upper end of the cupping glass tube 1 in the horizontal direction; the piston rod 2 is of a cross rod structure formed by orthogonal wide structural ribs and narrow structural ribs, a plurality of clamping grooves 9 are formed in two sides of each wide structural rib, and the clamping grooves 9 are matched with the clamping seats 8; the upper end of the piston rod 2 is provided with a flat cylindrical handle 10, the radius of the handle 10 is smaller than the distance from the clamping seat 8 to the central axis of the can drawing barrel 1, the lower end of the piston rod 2 is provided with a connector 11, the piston rod 2 is provided with a first through hole 12 (not shown in the figure) which penetrates through the handle, the inner diameter of the upper part of the first through hole 12 is larger than that of the lower part of the handle, the rubber stopper 3 is provided with a connecting groove 13 (not shown in the figure) and a second through hole 14 (not shown in the figure) which penetrates through the handle, and the diameter of the first through hole; the connecting head 11 of the piston rod 2 is connected with the connecting groove 13 of the rubber plug 3; the pressure release rod 5 is composed of a pressure release rod body 15 and a pressure release plug 16, the pressure release rod body 15 is of a cylindrical structure, the outer diameter of the upper portion of the pressure release rod body is larger than that of the lower portion of the pressure release rod body, a sleeve joint 17 (not shown in the figure) is arranged at the lower end of the pressure release rod body, the pressure release plug 16 is made of medical rubber, a sleeve joint groove 18 (not shown in the figure) is arranged on the pressure release plug 16, and the sleeve joint 17 is connected with the. The spring 4 is sleeved on the pressure release rod 5, the diameter of the pressure release plug 16 is larger than that of the pressure release rod body 15, the diameter of the pressure release plug 16 is consistent with that of the second through hole 14, the outer diameter of the lower part of the pressure release rod 5 is smaller than the inner diameter of the lower part of the first through hole 12, the outer diameter of the upper part of the pressure release rod 5 is smaller than that of the upper part of the first through hole 12, and the pressure release rod 5 penetrates through the first through hole 12 and the second through hole 14 to be movably connected with the piston rod 2 and the rubber plug 3. Under the normal bounce state, the top of the pressure release rod 5 is higher than the top of the piston rod 2, and the pressure release plug 16 is hermetically matched with the second through hole 14; the piston rod 2 with pull out a jar 1 activity and link to each other, the rubber buffer 3 with pull out the cooperation mode between the jar 1 and belong to elastic interference fit. The embodiment is basically the same as the embodiment 1, and is different in that the design structure of the protection flanging 7 is cancelled, and the edge of the cup opening at the lower end of the cup pulling barrel 1 is subjected to smooth round angle treatment, so that the advantages that the area occupied by the protection flanging 7 can be prevented from being obstructed, other optimal cupping treatment positions can be selected, the smooth round angle can also ensure the smoothness of the connection part with the skin, the comfort degree of a patient is prevented from being influenced in the treatment, and the skin is prevented from being injured.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principles of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.

Claims

1. A small medical cupping device with a pressure relief mechanism is characterized by comprising a cupping barrel, a piston rod, a rubber plug, a spring and a pressure release rod; the can drawing cylinder is a hollow cylinder with openings at two ends; the upper part of the tank opening at the upper end of the tank pulling cylinder is provided with a clamping seat; the piston rod is provided with a plurality of clamping grooves; the upper end of the piston rod is provided with a handle, and the lower end of the piston rod is provided with a connector; the piston rod is provided with a first through hole which penetrates through the piston rod; the rubber plug is provided with a connecting groove and a penetrating second through hole; the spring is sleeved on the upper part of the pressure release rod; the piston rod is connected with the rubber plug; the pressure release rod penetrates through the first through hole and the second through hole and is movably connected with the piston rod and the rubber plug; the piston rod is movably connected with the cupping cylinder.

2. The small-sized medical cupping device with pressure relief mechanism as claimed in claim 1, wherein the cupping barrel is made of transparent medical plastic material, and has a pressure flange at its upper end opening and a protection flange at its lower end opening.

3. The small-sized medical cupping device with pressure relief mechanism as claimed in claim 1, wherein the clamping seat spans over the upper end cup opening of the cupping cylinder and is horizontally far away from the center of the upper end cup opening of the cupping cylinder, and the clamping groove is matched with the clamping seat.

4. The small-sized medical suction cup with the pressure relief mechanism according to claim 1, wherein the piston rod is a cross bar structure formed by orthogonal wide structural ribs and narrow structural ribs, and a plurality of the clamping grooves are arranged on two sides of the wide structural ribs.

5. The small-sized medical cupping device with pressure relief mechanism according to claim 1 wherein the first through hole has an upper inner diameter larger than a lower inner diameter, the first through hole has a lower inner diameter smaller than the second through hole, and the first through hole and the second through hole are centered on the same axis.

6. The small-sized medical cupping device with pressure relief mechanism as claimed in claim 1, wherein the pressure relief rod is composed of a pressure relief rod body and a pressure relief plug, the diameter of the pressure relief plug is larger than that of the pressure relief rod body.

7. The small-sized medical suction cup with the pressure relief mechanism according to claim 6, wherein the pressure relief rod body has a cylindrical structure, the outer diameter of the upper portion of the pressure relief rod body is larger than that of the lower portion of the pressure relief rod body, the lower end of the pressure relief rod body is provided with a sleeve joint, the pressure relief plug is made of medical rubber, the sleeve joint is provided with a sleeve groove, and the sleeve joint is connected with the sleeve groove in a matching manner.

8. The small-sized medical suction cup with the pressure relief mechanism according to claim 5, 6 or 7, wherein the diameter of the pressure relief plug is the same as that of the second through hole, the outer diameter of the lower part of the pressure relief rod body is smaller than that of the lower part of the first through hole, and the outer diameter of the upper part of the pressure relief rod body is smaller than that of the upper part of the first through hole.

9. The small-sized medical cupping device with pressure relief mechanism as claimed in claim 1, wherein the rubber plug is made of medical rubber, and the rubber plug and the cupping barrel are in elastic interference fit.