Breathing air bag with manual ventilation function

Abstract

The utility model relates to the technical field of medical instruments, and discloses a breathing air bag with a manual ventilation function, which comprises a sacculus of the breathing air bag, an air inlet joint and an air outlet joint, two connecting components and a manual ventilation device, and the air inlet joint and the air outlet joint are respectively arranged at two ends of the sacculus. The air inlets are respectively arranged on the air inlet joint and the air outlet joint; the four outer cylinders are equally divided into two groups and are hinged to the two connecting components respectively, and the outer cylinders can rotate and move around hinge points; one end of the inner rod is arranged on the inner side of the outer cylinder. According to the breathing air bag with the manual ventilation function, the defects that a traditional breathing air bag with the manual ventilation function is inconsistent in ventilation effect and difficult to accurately control the ventilation volume are effectively overcome, through the technical characteristics, the stability and reliability of ventilation treatment are improved, the operation difficulty of medical staff and the risk of a patient are reduced, and the breathing air bag with the manual ventilation function is worthy of popularization and application. And safer and more effective support is provided for first aid and medical treatment processes.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a breathing airbag with a manual ventilation function. Background Art

[0002] A breathing bag with manual ventilation function, also known as a simple respirator or pressurized oxygen bag, is a medical device used to provide artificial ventilation in emergency situations. This bag transports oxygen to the spherical airbag and oxygen storage bag through manual finger pressure, and then the mask is placed close to the patient's face to deliver air or oxygen into the patient's lungs to improve the patient's tissue hypoxia. It is easy to operate and can quickly provide effective positive pressure ventilation support when the patient stops breathing or suffers respiratory failure. When in use, it is necessary to ensure that the mask fits tightly to the patient's face to avoid gas leakage, and at the same time adjust the oxygen flow to an appropriate level, and flexibly adjust the compression frequency and strength according to the patient's breathing condition. The breathing bag plays an important role in first aid, hospital wards and transfer processes, and is one of the first aid tools commonly used by medical staff.

[0003] Breathing bags with manual ventilation function play a vital role in emergency and medical treatment. They provide positive pressure ventilation to patients through manual compression by medical staff. However, this operation method, which relies entirely on the experience and judgment of medical staff, may have some significant defects in actual application. Medical staff's judgment of compression force and bag compression degree is often based on personal experience and subjective feelings, which may lead to inconsistency and uncertainty in ventilation effect. Different medical staff may have different force perception and compression habits, so that the same condition may produce different ventilation effects under the operation of different personnel. Manual compression may also make it difficult to accurately control the ventilation volume. Since it is impossible to monitor the patient's lung ventilation in real time, medical staff can often only judge the ventilation effect based on indirect indicators such as the patient's chest rise and fall and facial color changes. This makes the control of ventilation volume relatively difficult. Excessive ventilation volume may cause lung damage to the patient, while too little ventilation volume cannot meet the patient's ventilation needs and may even aggravate the condition. There are certain defects. Utility Model Content

[0004] (1) Technical problems solved

[0005] The utility model aims to improve the accuracy, stability and safety of ventilation, and proposes a breathing airbag with a manual ventilation function.

[0006] (2) Technical solution

[0007] The technical solution of the utility model to solve the above technical problems is as follows:

[0008] A breathing airbag with manual ventilation function includes a breathing airbag, an air inlet connector and an air outlet connector, wherein the air inlet connector and the air outlet connector are respectively arranged on both ends of the breathing airbag.

[0009] There are two connecting members, which are respectively arranged on the air inlet joint and the air outlet joint;

[0010] The outer cylinders are four in number and are divided into two groups, each hinged on two connecting members, wherein the outer cylinders can rotate and displace around the hinge point;

[0011] An inner rod, one end of which is disposed inside the outer cylinder and the other end of which extends outside the outer cylinder. The inner rod can be telescopically displaced within the outer cylinder. Limiting posts are also provided on the surface of the inner rod to limit the maximum displacement distance of the inner rod within the outer cylinder. The number and distribution of the limiting posts are adapted to the outer cylinder.

[0012] There are two pressing pieces, one of which corresponds to two inner rods. The other ends of the two inner rods are connected to the pressing pieces, and the other ends of the pressing pieces are in contact with the balloon. The two pressing pieces are pinched to squeeze the balloon, and the limit column is used to limit the displacement of the inner rod, thereby accurately controlling the ventilation volume of the breathing bag.

[0013] On the basis of the above technical solution, the present invention can also be improved as follows.

[0014] Furthermore, the connecting member includes:

[0015] There are two arc-shaped bases, which are respectively arranged on the outside of the air inlet joint and the air outlet joint;

[0016] An arc-shaped top seat is hinged to the end of the arc-shaped base, wherein the arc-shaped base and the arc-shaped top seat can cover the outer sides of the air inlet joint and the air outlet joint; and

[0017] The connecting piece is arranged on the other end of the arc-shaped base and is connected to the arc-shaped top seat, and is used for connecting the arc-shaped base and the arc-shaped top seat together.

[0018] Furthermore, the arc-shaped base and the arc-shaped top seat are connected by a first hinge seat, wherein the arc-shaped base and the arc-shaped top seat can be rotated and displaced with the first hinge seat as the origin, and the arc-shaped base and the arc-shaped top seat are opened at one end away from the first hinge seat, wherein the connecting part is located at the opening.

[0019] Furthermore, the connecting member includes:

[0020] A screw rod is rotatably disposed at the opening of the arc-shaped base, wherein the screw rod can be rotated and displaced with the opening of the arc-shaped base as an origin to be placed inside the opening of the arc-shaped top seat; and

[0021] The hand-tightening nut is threadedly connected to the outer side of the screw rod, and the arc-shaped base and the arc-shaped top seat can be connected together through the connection between the hand-tightening nut and the screw rod.

[0022] Furthermore, a second hinge seat is fixedly installed on the surface of the arc-shaped base and the arc-shaped top seat, and the end of the outer tube away from the inner rod is hinged to the inner side of the second hinge seat, and the outer tube can rotate and displace with the second hinge seat as the origin.

[0023] Furthermore, the pressing member includes:

[0024] There are two driving plates, which are arranged on the end of the inner rod away from the outer cylinder;

[0025] An abutment column, fixedly mounted on a side surface of the driving plate close to the balloon, with the number and distribution position of the abutment column being adapted to the driving plate; and

[0026] The pressing plate is fixedly mounted on the other end of the abutment column and contacts the balloon.

[0027] Furthermore, two third hinge seats are fixedly installed on the side of each driving plate, wherein the end of the inner rod away from the outer cylinder is connected to the driving plate through the third hinge seat, wherein the inner rod can rotate and displace with the third hinge seat as the origin.

[0028] (3) Beneficial effects

[0029] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0030] By introducing a connecting component as a bridge between the air inlet and outlet joints and the subsequent mechanical structure, the stability and reliability of the entire ventilation system are ensured. This design not only simplifies the structure, but also improves the connection efficiency between the components, providing a solid foundation for subsequent precise control. Secondly, the hinged design of the outer tube allows it to rotate and displace around the hinge point. This innovation makes the telescopic action of the inner rod more flexible and controllable. When the medical staff pinches the pressing part, the rotation of the outer tube can drive the inner rod to extend and retract in the outer tube, thereby achieving the squeezing of the balloon. This mechanized design reduces the medical staff's dependence on personal experience and subjective judgment, and improves the stability and consistency of the ventilation effect. More importantly, the limit column set on the surface of the inner rod plays a vital role. The limit column can accurately limit the maximum displacement distance of the inner rod in the outer tube, thereby ensuring precise control of the ventilation volume each time the balloon is squeezed. This design avoids the medical staff pressing The problem of excessive or insufficient ventilation volume caused by uneven force or misjudgment effectively reduces the risk of lung damage in patients and improves the effect of ventilation therapy. In addition, the design of the pressing piece also reflects humanized considerations. The two pressing pieces correspond to two sets of inner rods, so that medical staff can operate them simultaneously with one hand, which improves the convenience and efficiency of operation. At the same time, the direct contact design between the pressing piece and the balloon ensures the direct transmission of the extrusion force, reduces energy loss, and further improves the ventilation efficiency. In summary, by introducing connecting components, the articulated design of the outer cylinder, the precise control of the inner rod and the limit column, and the humanized design of the pressing piece, the defects of traditional manual ventilation function breathing bags in terms of inconsistent ventilation effects and difficulty in precise control of ventilation volume are effectively solved. These technical features not only improve the stability and reliability of ventilation therapy, but also reduce the difficulty of operation for medical staff and the risks to patients, providing safer and more effective support for emergency and medical processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall connection structure of the utility model;

[0032] Figure 2 This is a schematic diagram of the connection structure of the connecting member of the utility model;

[0033] Figure 3 This is a schematic diagram of the connection structure between the arc-shaped base and the first hinged seat of the utility model;

[0034] Figure 4 This is a schematic diagram of the connection structure between the arc-shaped base and the connecting piece of the utility model.

[0035] In the figure: 1. Balloon; 2. Air inlet connector; 3. Air outlet connector; 4. Connecting member; 41. Arc-shaped base; 42. Arc-shaped top seat; 43. Connecting member; 431. Screw; 432. Hand-tightening nut; 5. Outer cylinder; 6. Inner rod; 7. Limiting column; 8. Pressing member; 81. Driving plate; 82. Retaining column; 83. Pressing plate; 9. First hinge seat; 10. Second hinge seat; 11. Third hinge seat. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0037] Combine Figure 1-Figure 4 As shown, the present invention is a breathing airbag with manual ventilation function, comprising a breathing airbag 1, an air inlet connector 2 and an air outlet connector 3, wherein the air inlet connector 2 and the air outlet connector 3 are respectively arranged on both ends of the balloon 1, characterized in that:

[0038] There are two connecting members 4, which are respectively provided on the air inlet connector 2 and the air outlet connector 3;

[0039] The outer cylinders 5 are four in number and are divided into two groups, each hingedly mounted on the two connecting members 4. The outer cylinders 5 can rotate and displace around the hinge point.

[0040] An inner rod 6 has one end disposed inside the outer tube 5 and the other end extending outside the outer tube 5. The inner rod 6 can telescope within the outer tube 5. Limiting posts 7 are provided on the surface of the inner rod 6 to limit the maximum displacement of the inner rod 6 within the outer tube 5. The number and distribution of the limiting posts 7 are adapted to the outer tube 5.

[0041] There are two pressing pieces 8, one of which corresponds to two inner rods 6. The other ends of the two inner rods 6 are connected to the pressing pieces 8, and the other ends of the pressing pieces 8 are in contact with the balloon 1. The two pressing pieces 8 are pinched to squeeze the balloon 1, and the limiting column 7 is used to limit the displacement process of the inner rod 6, so as to accurately control the ventilation volume of the breathing bag.

[0042] In the breathing airbag, the balloon 1 serves as the main gas storage and extrusion component, and an air inlet connector 2 and an air outlet connector 3 are respectively provided at its two ends for connecting the oxygen source and the patient's breathing mask. In order to achieve precise control of the extrusion process of the balloon 1, a set of mechanized auxiliary mechanisms is designed. First, the connecting member 4 serves as a bridge between the air inlet connector 2 and the air outlet connector 3 and the subsequent mechanical structure, and is respectively arranged on these two connectors to ensure a stable connection of the entire mechanical structure. Next, the outer tube 5 is a key component, with four in number and divided into two groups, which are respectively hinged to the air inlet connector 2 and the air outlet connector 3. This hinged design allows the outer tube 5 to rotate and displace around its hinge point, providing a basis for subsequent telescopic action. One end of the inner rod 6 is fixed to the inner side of the outer tube 5, and the other end extends to the outside of the outer tube 5. When the outer tube 5 rotates and displaces, the inner rod 6 can be telescopically displaced in the outer tube 5, thereby realizing the conversion of mechanical action into an extrusion effect on the balloon 1. In order to precisely control this extrusion effect, the inner tube 5 is A limiting post 7 is provided on the surface of the rod 6, and the limiting post 7 cooperates with the inner wall of the outer tube 5 to limit the maximum displacement distance of the inner rod 6 in the outer tube 5, thereby ensuring that the ventilation volume of each squeezing is within the preset safety and effective range. Finally, the two pressing pieces 8 are designed to be connected to the two groups of inner rods 6. By pinching the two pressing pieces 8, medical staff can synchronously drive the two groups of inner rods 6 to extend and retract in the outer tube 5, thereby achieving uniform squeezing of the balloon 1. Due to the presence of the limiting post 7, this squeezing process will be precisely controlled to avoid the problem of excessive ventilation caused by excessive squeezing. At the same time, the direct contact design of the pressing piece 8 and the balloon 1 ensures the effective transmission of the squeezing force and improves the ventilation efficiency. In summary, the breathing airbag realizes precise control of the balloon 1 squeezing process through the coordinated work of the connecting component 4, outer tube 5, inner rod 6, limiting post 7 and pressing piece 8, thereby ensuring the stability and consistency of the ventilation volume and improving the reliability and safety of the breathing airbag during first aid and medical treatment.

[0043] In a preferred embodiment, the present invention can be further configured as follows: Figure 1 、 Figure 2 As shown; the connecting member 4 includes:

[0044] Two arc-shaped bases 41 are respectively arranged on the outside of the air inlet connector 2 and the air outlet connector 3;

[0045] The arc-shaped top seat 42 is hinged to the end of the arc-shaped base 41, wherein the arc-shaped base 41 and the arc-shaped top seat 42 can cover the outer sides of the air inlet connector 2 and the air outlet connector 3; and

[0046] The connecting member 43 is provided on the other end of the arc base 41 and is connected to the arc top seat 42. It is used to connect the arc base 41 and the arc top seat 42 together. The arc base 41 serves as the basic part of the connecting member 4. There are two of them, which are respectively provided on the outside of the air inlet joint 2 and the air outlet joint 3. This arc design can closely fit the shape of the air inlet joint 2 and the air outlet joint 3 to ensure the stability of the connection. At the same time, the arc base 41 also provides a base point for support and rotation of the subsequent arc top seat 42. Then, the arc top seat 42 is connected to the arc base by a hinged manner. On the end of the seat 41, this hinged design allows the arc-shaped top seat 42 to rotate and displace with the end of the arc-shaped base 41 as the origin, making it convenient to connect the entire connecting member with the air inlet connector 2 and the air outlet connector 3. Finally, the connecting member 43 is arranged on the other end of the arc-shaped base 41 and is interconnected with the arc-shaped top seat 42. The function of the connecting member 43 is to tightly connect the arc-shaped base 41 and the arc-shaped top seat 42 together to form a stable overall structure. This connection method not only ensures the strength and stability of the connecting member 4, but also makes the entire connecting structure more compact and easy to install and replace.

[0047] In a preferred embodiment, the present invention can be further configured as follows: Figure 2 、 Figure 3 As shown; the arc base 41 and the arc top seat 42 are connected by a first hinge seat 9, wherein the arc base 41 and the arc top seat 42 can both rotate and displace with the first hinge seat 9 as the origin, and the arc base 41 and the arc top seat 42 are opened at one end away from the first hinge seat 9, wherein the connecting member 43 is located at the opening, and the first hinge seat 9 is cleverly set between the arc base 41 and the arc top seat 42 as the center point of rotation. This design allows the arc base 41 and the arc top seat 42 to both rotate and displace with the first hinge seat 9 as the origin. The flexibility of this rotational displacement facilitates the overall connection. In addition, the arc base 41 and the arc top seat 42 are opened at one end away from the first hinge seat 9. This opening design not only facilitates the installation and fixation of the connecting member 43, but also makes the entire connecting member 4 more compact and reasonable in structure. The connecting member 43 is located at this opening, and through its strong connecting force, the arc base 41 and the arc top seat 42 are tightly connected together to form a stable overall structure.

[0048] In a preferred embodiment, the present invention can be further configured as follows: Figure 3 、 Figure 4 As shown; the connecting member 43 includes:

[0049] A screw 431 is rotatably disposed at the opening of the arc-shaped base 41 , wherein the screw 431 can be rotated and displaced with the opening of the arc-shaped base 41 as the origin to be placed inside the opening of the arc-shaped top seat 42 ; and

[0050] The hand-tightening nut 432 is threadedly connected to the outside of the screw rod 431. The arc base 41 and the arc top seat 42 can be connected together by the hand-tightening nut 432 and the screw rod 431. In the design of the connecting component 4 of the breathing airbag, the connecting member 43 is a key part, and its function is to ensure a stable connection between the arc base 41 and the arc top seat 42. Specifically, the screw rod 431 is rotatably set at the opening of the arc base 41. This design allows the screw rod 431 to rotate and displace with the opening of the arc base 41 as the origin. When the arc base 41 needs to be connected to the arc top seat 42, the screw rod 431 is rotated. The rod 431 can be rotated and inserted into the inner side of the opening of the arc-shaped top seat 42 until it reaches a predetermined connection position. Next, the hand nut 432 is designed to be threadedly connected to the outer side of the screw rod 431. Medical staff or users can simply rotate the hand nut 432 to gradually tighten it along the thread of the screw rod 431. As the hand nut 432 rotates, it squeezes the contact surface of the arc-shaped top seat 42, thereby generating a strong fastening force. This fastening force ensures a firm connection between the arc-shaped base 41 and the arc-shaped top seat 42, preventing them from loosening or separating during use.

[0051] In a preferred embodiment, the present invention can be further configured as follows: Figure 1 、 Figure 2 As shown; a second hinge seat 10 is fixedly installed on the surface of the arc base 41 and the arc top seat 42, and the end of the outer tube 5 away from the inner rod 6 is hinged to the inner side of the second hinge seat 10. The outer tube 5 can rotate and displace with the second hinge seat 10 as the origin. In the complex structure of the breathing airbag, in order to ensure that the outer tube 5 can be flexibly and firmly connected to the air inlet joint 2 and the air outlet joint 3, a design is proposed to fix the second hinge seat 10 on the surface of the arc base 41 and the arc top seat 42. This design provides the necessary support points and rotation origins for the hinged connection of the outer tube 5. Specifically, the second hinge seat 10 is firmly installed on the surfaces of the arc base 41 and the arc top seat 42. They serve as the hinge points of the outer tube 5, allowing the outer tube 5 to rotate and displace, adjust the position and angle of the outer tube 5, thereby ensuring that the inner rod 6 can smoothly extend and retract and effectively squeeze the balloon 1.

[0052] In a preferred embodiment, the present invention can be further configured as follows: Figure 1 As shown; the pressing member 8 includes:

[0053] There are two driving plates 81, which are arranged on the end of the inner rod 6 away from the outer cylinder 5;

[0054] The abutment posts 82 are fixedly mounted on the surface of the driving plate 81 close to the balloon 1 , and the number and distribution positions of the abutment posts 82 are adapted to the driving plate 81 ; and

[0055] The pressing plate 83 is fixedly mounted on the other end of the support column 82 and contacts the balloon 1. In the design of the breathing airbag, the pressing member 8 is a key component for achieving effective squeezing of the balloon 1. The pressing member 8 is composed of three parts: the driving plate 81, the support column 82 and the pressing plate 83. They work together to ensure uniform and effective pressing of the balloon 1. First, the driving plate 81 is the basic part of the pressing member 8. There are two of them, which are symmetrically arranged on the end of the inner rod 6 away from the outer tube 5. This design enables the two driving plates 81 to move synchronously, thereby providing a stable pressing force. When the inner rod 6 moves toward the balloon 1 under the action of external force, such as the grip and push of medical staff, the driving plate 81 also approaches the balloon 1. Next, Here, the anti-pillar 82 is fixedly installed on the side surface of the driving plate 81 close to the balloon 1. The number and distribution position of the anti-pillar 82 are adapted to the driving plate 81 to ensure the uniform distribution of the pressing force. The anti-pillar 82 acts as an intermediary for transmitting force, converting the thrust exerted on the driving plate 81 into direct pressing force on the balloon 1. Finally, the pressing plate 83 is fixedly installed on the other end of the anti-pillar 82 and is in contact with the balloon 1. The design of the pressing plate 83 takes into account the fit with the surface of the balloon 1 to ensure the uniformity and effectiveness of the pressing. When the driving plate 81 transmits force to the pressing plate 83 through the anti-pillar 82, the pressing plate 83 is close to the surface of the balloon 1 and applies pressure, thereby achieving the extrusion of the balloon 1 and the output of gas.

[0056] In a preferred embodiment, the present invention can be further configured as follows: Figure 1 As shown; Two third hinge seats 11 are fixedly installed on the side of each driving plate 81, wherein the end of the inner rod 6 away from the outer cylinder 5 is connected to the driving plate 81 through the third hinge seat 11, wherein the inner rod 6 can rotate and displace with the third hinge seat 11 as the origin. In order to ensure that the pressing member 8 can be flexibly and firmly connected to the inner rod 6 and move with the expansion and contraction of the inner rod 6, a design is proposed in which two third hinge seats 11 are fixedly installed on the side of each driving plate 81. This design not only enhances the connection strength between the driving plate 81 and the inner rod 6, but also gives the inner rod 6 the ability to rotate relative to the driving plate 81. The ability of rotational displacement, specifically, the third hinge seat 11 is firmly installed on the side of the driving plate 81 as a connection point, and the end of the inner rod 6 away from the outer tube 5 is connected to the driving plate 81 through these third hinge seats 11. This connection method allows the inner rod 6 to rotate and displace according to the third hinge seat 11 as the origin when subjected to external force. The flexibility of rotational displacement is crucial for the use of the breathing airbag. It allows the inner rod 6 to adjust its angle and position relative to the driving plate 81 according to actual needs during the extension and retraction process, thereby ensuring that the pressing member 8 can press the balloon 1 more effectively.

[0057] The specific working principle of the breathing airbag with manual ventilation function in this utility model is as follows:

[0058] When using a breathing airbag with a manual ventilation function, first ensure that the various components of the breathing airbag have been correctly assembled and are in the initial state. The balloon 1 is a core component, and an air inlet connector 2 and an air outlet connector 3 are provided at both ends thereof for controlling the inflow and outflow of gas. The rotational connection between the arc base 41 and the arc top seat 42 is realized through the first hinge seat 9, and the two are firmly connected together through the tightening action of the screw 431 and the hand-tightening nut 432, forming a covering and fixation for the air inlet connector 2 and the air outlet connector 3. When ventilation operation is required, the medical staff will pinch the two pressing pieces 8, each pressing piece 8 corresponds to the two inner rods 6. Since two third hinge seats 11 are fixedly installed on the side of each driving plate 81, the end of the inner rod 6 away from the outer tube 5 is connected to the driving plate 81 through the third hinge seat 11. The plates 81 are connected to each other, so when the pressing piece 8 is pinched, the inner rod 6 will rotate and displace with the third hinge seat 11 as the origin, and at the same time expand and contract outward in the outer tube 5. As the inner rod 6 expands and contracts, the pressing plate 83 will move toward the balloon 1 and apply pressure close to the surface of the balloon 1 to achieve the extrusion of the balloon 1. During the extrusion process, the cooperation between the limit column 7 and the inner rod 6 can accurately control the displacement process of the inner rod 6, thereby accurately controlling the ventilation volume of the respiratory airbag. When the required ventilation volume is reached, the medical staff releases the pressing piece 8, and the inner rod 6 returns to the initial position under the action of the balloon 1, waiting for the next ventilation operation. In summary, the entire workflow realizes the manual ventilation function of the respiratory airbag through clever mechanical design and component coordination, providing convenient and effective support for medical first aid and respiratory therapy.

[0059] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0060] Although the embodiments of the present invention have been shown and described, it will be understood 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 present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A breathing airbag with a manual ventilation function, comprising a breathing airbag (1), an air inlet connector (2) and an air outlet connector (3), wherein the air inlet connector (2) and the air outlet connector (3) are respectively arranged at both ends of the breathing airbag (1), characterized in that: There are two connecting members (4), which are respectively arranged on the air inlet connector (2) and the air outlet connector (3); The outer cylinders (5) are four in number and divided into two groups, and are hingedly mounted on the two connecting members (4), wherein the outer cylinders (5) can rotate and displace around the hinge points; An inner rod (6) has one end disposed on the inner side of the outer cylinder (5) and the other end extending to the outer side of the outer cylinder (5). The inner rod (6) can be telescopically displaced in the outer cylinder (5). A limiting column (7) is further disposed on the surface of the inner rod (6). The limiting column (7) can limit the maximum displacement distance of the inner rod (6) in the outer cylinder (5). The number and distribution position of the limiting column (7) are adapted to the outer cylinder (5). There are two pressing members (8), one of which corresponds to two inner rods (6), and the other ends of the two inner rods (6) are connected to the pressing members (8), and the other ends of the pressing members (8) are in contact with the balloon (1). The balloon (1) is squeezed by pinching the two pressing members (8), and the displacement of the inner rods (6) is limited by the limiting column (7), so as to accurately control the ventilation volume of the breathing airbag.

2. A breathing airbag with manual ventilation function according to claim 1, characterized in that: The connecting member (4) comprises: Two arc-shaped bases (41) are respectively arranged on the outside of the air inlet connector (2) and the air outlet connector (3); The arc-shaped top seat (42) is hinged to the end of the arc-shaped base (41), wherein the arc-shaped base (41) and the arc-shaped top seat (42) can cover the outer sides of the air inlet connector (2) and the air outlet connector (3); and The connecting member (43) is arranged on the other end of the arc-shaped base (41) and is connected to the arc-shaped top seat (42) so as to connect the arc-shaped base (41) and the arc-shaped top seat (42) together.

3. A breathing airbag with manual ventilation function according to claim 2, characterized in that: The arc-shaped base (41) and the arc-shaped top seat (42) are connected via a first hinge seat (9), wherein the arc-shaped base (41) and the arc-shaped top seat (42) can both be rotated and displaced with the first hinge seat (9) as the origin, and the arc-shaped base (41) and the arc-shaped top seat (42) are arranged with an opening at one end away from the first hinge seat (9), wherein the connecting member (43) is located at the opening.

4. A breathing airbag with manual ventilation function according to claim 3, characterized in that: The connecting member (43) comprises: A screw rod (431) is rotatably disposed at the opening of the arc-shaped base (41), wherein the screw rod (431) can be rotated and displaced with the opening of the arc-shaped base (41) as the origin to be placed inside the opening of the arc-shaped top seat (42); and The hand-tightening nut (432) is threadedly connected to the outer side of the screw rod (431), and the arc-shaped base (41) and the arc-shaped top seat (42) can be connected together by connecting the hand-tightening nut (432) and the screw rod (431).

5. The breathing airbag with manual ventilation function according to claim 2, characterized in that: A second hinge seat (10) is fixedly mounted on the surface of the arc-shaped base (41) and the arc-shaped top seat (42). One end of the outer cylinder (5) away from the inner rod (6) is hinged to the inner side of the second hinge seat (10). The outer cylinder (5) can rotate and displace with the second hinge seat (10) as the origin.

6. The breathing airbag with manual ventilation function according to claim 1, characterized in that: The pressing member (8) comprises: Two driving plates (81) are provided on the end of the inner rod (6) away from the outer cylinder (5); Abutment posts (82) are fixedly mounted on a surface of the driving plate (81) close to the balloon (1), and the number and distribution positions of the abutment posts are adapted to the driving plate (81); and The pressing plate (83) is fixedly mounted on the other end of the support column (82) and is in contact with the balloon (1).

7. A breathing airbag with manual ventilation function according to claim 6, characterized in that: Two third hinge seats (11) are fixedly mounted on the side of each driving plate (81), wherein the end of the inner rod (6) away from the outer cylinder (5) is connected to the driving plate (81) through the third hinge seat (11), wherein the inner rod (6) can rotate and displace according to the third hinge seat (11) as the origin.

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