Inflation valve group provided with control valve

Abstract

The utility model discloses an inflation valve group provided with a control valve, which comprises a valve casing and a rubber sleeve, the valve casing is provided with an air passing cavity in a penetrating manner, the rubber sleeve is sleeved on the valve casing, the air passing cavity forms an air outlet on the air outlet side of the valve casing, a valve rod component is arranged in the air outlet, and the valve rod component seals the air outlet in a normal state; the air passing cavity is provided with a control valve set on the air inlet side of the valve shell, the control valve set comprises an inner valve body and a movable valve element arranged in the inner valve body, a through air inlet channel is formed in the inner valve body, the movable valve element abuts against and seals the air inlet channel in the normal state, and the movable valve element actuates towards the air outlet side in the air inlet state. The valve rod assembly is actuated to deflect in the air inlet state, a first air passing gap is formed between the valve rod assembly and the air inlet channel, the valve rod assembly is actuated to deflect in the air inlet state, and a second air passing gap is formed between the valve rod assembly and the air passing cavity so as to communicate the air inlet channel with the air outlet.

Description

Technical Field

[0001] This utility model relates to the field of helium filling control technology, specifically to a filling valve assembly equipped with a control valve. Background Technology

[0002] Currently, in the field of helium filling, the existing lever-type filling head is widely used. Traditional lever-type filling heads typically open the filling channel directly by turning the valve stem after the gas cylinder is connected to the filling head, allowing helium to flow rapidly from the cylinder into the target container. This filling method has some obvious drawbacks in practical applications.

[0003] For example, the Chinese utility model patent CN205715847U, entitled "A Helium Inflation Valve," only has a spring inside the valve body to support the valve stem. On the one hand, because there is no buffering mechanism, when the valve stem is opened, helium gas rushes into the target container at a large flow rate and high speed. For balloons and other objects with low tolerance to pressure changes, this rapid inflation process may cause the air bladder or balloon to rupture due to excessive instantaneous pressure, reducing the success rate and safety of inflation.

[0004] On the other hand, in situations requiring precise control of the inflation volume, a rapid inflation process makes it difficult for operators to accurately grasp the inflation progress and amount. Because the helium flow rate is too fast, by the time the operator senses that the inflation volume is close to the target value and then performs the shut-off operation, due to the inertia of the gas flow, too much helium has often been injected, making precise inflation control impossible. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an inflation valve assembly equipped with a control valve.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an inflation valve assembly equipped with a control valve, comprising:

[0007] A valve housing with a through-hole and a rubber sleeve fitted on the valve housing are provided. The through-hole forms an air outlet on the air outlet side of the valve housing. A valve stem assembly is provided in the air outlet. The valve stem assembly seals the air outlet under normal conditions.

[0008] The air passage chamber is provided with a control valve assembly on the air inlet side of the valve housing. The control valve assembly includes an inner valve body and a movable valve core disposed within the inner valve body. A through air inlet channel is formed within the inner valve body. Under normal conditions, the movable valve core abuts against and seals the air inlet channel. In the air inlet state, the movable valve core is actuated toward the air outlet side and is separated from the air inlet channel by a first air passage gap. In the air inlet state, the valve stem assembly is actuated to deflect and is separated from the air passage chamber by a second air passage gap to connect the air inlet channel and the air outlet.

[0009] Furthermore, the movable valve core is installed in the air intake channel. The movable valve core includes a sealing end face that abuts against the axial end face of the inner valve body, and an air intake end face that extends from the sealing end face toward the air outlet side. The air intake end face is separated from the inner wall of the inner valve body by a first air passage gap.

[0010] Furthermore, the control valve assembly also includes a first spring, which abuts against the inner end face of the movable valve core and the inner valve body, and the first spring actuates the movable valve core to seal the air intake passage.

[0011] Furthermore, the control valve assembly also includes a first positioning member disposed outside the inner valve body, and a first sealing ring supported on the first positioning member, wherein the first sealing ring abuts between the valve housing, the first positioning member and the inner valve body.

[0012] Furthermore, the movable valve core includes a movable rod and a movable plug sleeved on the movable rod, and the sealing end face and the air intake end face are both disposed on the movable plug.

[0013] Furthermore, an annular groove is also provided on the air intake end face.

[0014] Furthermore, the control valve assembly also includes a limiting member, which is placed on the air intake side of the inner valve body and abuts against the sealing end face of the movable valve core.

[0015] Furthermore, the air passage chamber is provided with a first step, a second step, and a third step arranged sequentially toward the air outlet side. The first step is arranged opposite to the control valve assembly, the second step is arranged opposite to the support end of the valve stem assembly, and the third step is arranged opposite to the sealing end of the valve stem assembly.

[0016] Furthermore, the valve stem assembly includes a valve stem extending within a rubber sleeve, a second spring receiving the rear of the valve stem, and a second positioning member disposed within the air passage chamber, the second positioning member having an air passage hole opposite to the air intake channel.

[0017] Furthermore, the vent has a stepped surface that connects to the vent cavity, and the valve stem has a radial extension that is disposed opposite to the stepped surface. The radial extension abuts against the stepped surface, or a second sealing ring is disposed between the radial extension and the stepped surface.

[0018] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0019] By setting up a control valve assembly, the movable valve core actuates towards the outlet side in the air intake state to form a first air gap, which, together with the valve stem assembly actuating to form a second air gap, achieves two-stage flow control. Compared to the single-stage opening method of traditional lever-type inflation heads, this method can utilize the first air gap to provide a buffer during the initial inflation stage, allowing helium to flow slowly into the target container at a smaller flow rate. This effectively avoids the sudden pressure increase caused by a large instantaneous flow rate during inflation, greatly improving the inflation safety of pressure-sensitive containers such as balloons, reducing the risk of container rupture, and enhancing inflation stability.

[0020] Secondly, the staged airflow structure formed by the cooperation of the movable valve core and the valve stem assembly provides a solid foundation for precise control of the inflation volume. In scenarios requiring precise inflation control, operators can initially inflate using a small flow rate generated by the movable valve core, accurately observing and controlling the inflation progress. When the target inflation volume is approached, the flow rate can be increased by moving the valve stem assembly to complete the final inflation. This effectively overcomes the problem of traditional inflation heads where the inflation volume is difficult to control precisely due to excessively high flow rates, significantly improving the accuracy of inflation volume control. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a schematic diagram of the control valve assembly and valve stem assembly of this utility model;

[0024] Figure 4 This is an exploded view of the control valve assembly of this utility model;

[0025] Figure 5 This is a schematic diagram of the valve stem assembly of this utility model;

[0026] Figure 6 This is an exploded view of the valve stem assembly of this utility model;

[0027] Figure 7 This is a cross-sectional view of the inner valve body of this utility model;

[0028] In the diagram: 1. Valve housing; 1.1. First step; 1.2. Second step; 1.3. Third step;

[0029] 2. Air passage chamber; 3. Rubber sleeve; 4. Air outlet;

[0030] 5. Valve stem assembly; 5.1 Valve stem; 5.11 Radial extension; 5.2 Second spring; 5.3 Second positioning element; 5.31 Vent hole; 5.4 Second sealing ring;

[0031] 6. Control valve assembly; 6.1 Inner valve body; 6.2 Movable valve core; 6.21 Sealing end face; 6.22 Inlet end face; 6.23 Annular groove; 6.24 Movable rod; 6.25 Movable plug; 6.3 Inlet passage; 6.4 First spring; 6.5 First positioning element; 6.6 First sealing ring; 6.7 Limiting element;

[0032] 7. First air gap; 8. Second air gap; Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0035] like Figure 1-7 As shown, an inflation valve assembly equipped with a control valve includes: a valve housing 1 through which an air passage chamber 2 is provided, and a rubber sleeve 3 sleeved on the valve housing 1. The air passage chamber 2 forms an air outlet 4 on the air outlet side of the valve housing 1. A valve stem assembly 5 is provided in the air outlet 4. The valve stem assembly 5 seals the air outlet 4 under normal conditions. The valve stem assembly 5 has an operating end that extends out of the air outlet 4. The operating end is inserted into the rubber sleeve 3, and the rubber sleeve 3 has an opening to connect to the air outlet 4. The operator opens the air outlet 4 by applying force to the operating end of the valve stem assembly 5 in the rubber sleeve 3.

[0036] The gas passage chamber 2 has a control valve assembly 6 on the gas inlet side of the valve housing 1. In the gas inlet state, this control valve assembly 6 is used to connect with the valve head of the gas cylinder. The valve head of the gas cylinder can act on the control valve assembly 6. The control valve assembly 6 includes an inner valve body 6.1 and a movable valve core 6.2 disposed within the inner valve body 6.1. A through-passage gas inlet channel 6.3 is formed within the inner valve body 6.1. Under normal conditions, the movable valve core 6.2 abuts against and seals the gas inlet channel 6.3, thereby forming two airtight structures inside the valve housing 1 to improve operational safety.

[0037] In the intake state, the movable valve core 6.2 is abutted by the valve head of the gas cylinder, thereby actuating towards the outlet side within the intake channel 6.3 and creating a first air passage gap 7 between it and the intake channel 6.3. At this time, the airflow is output towards the outlet 4, while the valve stem assembly 5 remains in its normal sealed state. In the intake state, the valve stem assembly 5 is actuated by the operator and deflects, creating a second air passage gap 8 between it and the air passage chamber 2 to connect the intake channel 6.3 and the outlet 4. Through the above improvements, two-stage control of airflow output is achieved. Compared with the single-stage opening method of the traditional lever-type inflation head, the first air passage gap 7 can provide a buffer in the early stage of inflation, allowing helium to flow slowly into the target container at a smaller flow rate. This effectively avoids the pressure surge caused by a sudden large flow rate inflation, greatly improving the inflation safety of pressure-sensitive containers such as balloons and small air bags, reducing the risk of container rupture, and increasing the inflation success rate. It effectively overcomes the problem of difficulty in accurately controlling the inflation volume due to excessive flow rate in traditional inflation heads, and significantly improves the inflation volume control accuracy.

[0038] Further reference Figure 2 As a further embodiment of controlling the air intake and exhaust of the movable valve core 6.2, the movable valve core 6.2 is installed inside the air intake channel 6.3. The movable valve core 6.2 includes a sealing end face 6.21 that abuts against the axial end face of the inner valve body 6.1, and an air intake end face 6.22 that extends from the sealing end face 6.21 toward the air outlet side. Under normal conditions, the cooperation direction between the movable valve core 6.2 and the inner valve body 6.1 is the axial direction of the air intake channel 6.3. Under normal conditions, the airflow output is closed by the sealing end face 6.21 abutting against the axial end face of the inner valve body 6.1. Under the air intake state, as the movable valve core 6.2 is actuated, the sealing end face 6.21 separates from the axial end face, thereby allowing airflow output.

[0039] Optionally, at least one of the sealing end face 6.21 and the axial end face is a flexible sealing member, and the movable valve body is supported by an elastic element. The elastic element acts in a direction that drives the sealing end face 6.21 to abut against the axial end face of the inner valve body 6.1. The air inlet end face 6.22 is separated from the inner wall of the inner valve body 6.1 by a first air passage gap 7. The air inlet end face 6.22 is disposed on the circumferential outer wall of the movable valve core 6.2, and the outer diameter of the air inlet end face 6.22 is smaller than the inner diameter of the inner valve body 6.1 to form the first air passage gap 7 for airflow.

[0040] Specifically, the control valve assembly 6 also includes a first spring 6.4 housed within the inner valve body 6.1. The first spring 6.4 abuts against the inner end face of the movable valve core 6.2 and the inner valve body 6.1, and the first spring 6.4 actuates the movable valve core 6.2 to move towards the air intake side, thereby forcing the sealing end face 6.21 to abut against the axial end face and seal the air intake passage 6.3. The first spring 6.4 provides the reset force for the movable valve core 6.2, so that it stably abuts against the sealed air intake passage 6.3 under normal conditions. This, together with the seal of the valve stem assembly 5 at the air outlet 4, ensures zero helium leakage when there is no gas cylinder docking. When the gas cylinder docking occurs, the first spring 6.4 also acts as a buffer for the movement of the movable valve core 6.2, extending the service life of the movable valve core 6.2 and the entire filling valve assembly, while providing operating damping force to facilitate the operator's confirmation of docking.

[0041] like Figures 2 to 4 As shown, the control valve assembly 6 also includes a first positioning member 6.5 disposed outside the inner valve body 6.1, and a first sealing ring 6.6 supported on the first positioning member 6.5. The first sealing ring 6.6 abuts against the valve housing 1, the first positioning member 6.5, and the inner valve body 6.1. The first positioning member 6.5 abuts against the inner wall of the air passage chamber 2 in the outer diameter direction and abuts against the outer wall of the inner valve body 6.1 in the inner diameter direction. The first sealing ring 6.6 abuts against the inner wall of the air passage chamber 2 in the outer radial direction. The first sealing ring 6.6 abuts against the outer wall of the valve housing 1 in the inner diameter direction, and the first sealing ring 6.6 abuts against the end face of the first positioning member 6.5 in the axial direction, thereby forming a seal between the valve housing 1, the first positioning member 6.5 and the inner valve body 6.1, effectively preventing helium gas from leaking from the connection; and the first positioning member 6.5 radially positions the inner valve body 6.1 in the gas passage chamber 2, preventing it from shifting in the valve housing 1, ensuring the structural stability of the control valve assembly 6, and ensuring that the sealing performance and reliability of the gas filling valve assembly are not affected during long-term use.

[0042] As a further embodiment of the movable valve core 6.2, the movable valve core 6.2 includes a movable rod 6.24 and a movable plug 6.25 sleeved on the movable rod 6.24. The movable rod 6.24 is a cylindrical member, and a step is provided on the shaft end of the movable rod 6.24. The movable plug 6.25 is sleeved on the movable rod 6.24 and abuts against the step on it for positioning. The movable plug 6.25 is a flexible member, which is movably disposed within the inner valve body 6.1 in a compressed posture and is held tightly on the movable rod 6.24, thereby realizing the synchronous movement of the movable rod 6.24 and the movable plug 6.25. The sealing end face 6.21 and the air intake end face 6.22 are both provided on the movable plug 6.25.

[0043] Furthermore, the sealing end face 6.21 is disposed on the axial end face of the movable plug 6.25, which is used to receive the first spring 6.4, thereby forcing the movable plug 6.25 to tend to abut against the axial end face of the inner valve body 6.1, thereby achieving a seal. In the air intake state, the movable rod 6.24 is forced to move towards the air intake side, driving the movable plug 6.25 to move axially, so that the sealing end face 6.21 is separated from the axial end face on the inner valve body 6.1, thereby allowing airflow to pass through and output through the first air passage gap 7 formed between the air intake end face 6.22 on the peripheral side wall of the movable plug 6.25 and the inner wall of the inner valve body 6.1. In the air intake state when the valve stem assembly 5 is turned, the airflow is further output through the second air passage gap 8, during which the airflow can be buffered by the first air passage gap 7.

[0044] First, by opening a small initial gas gap 7 through the active valve core 6.2 in the initial stage, preliminary flow restriction of helium is achieved, effectively avoiding rapid gas flow during the initial filling stage, greatly improving filling safety, and reducing the risk of damage to the target container due to excessive instantaneous pressure. Second, in scenarios requiring precise control of the filling volume, a stable initial filling process allows operators more time and a more precise method to control the filling progress, effectively improving the accuracy of filling volume control and meeting the precise filling requirements of different application scenarios.

[0045] In this embodiment, the movable valve core 6.2 adopts a split structure of movable rod 6.24 and movable plug 6.25, which facilitates processing, manufacturing and assembly, and reduces production costs. At the same time, the sealing end face 6.21 and the air inlet end face 6.22 are concentrated on the movable plug 6.25, making the movable plug 6.25 the main sealing and air passage component. When damaged, the movable plug 6.25 can be replaced separately without replacing the entire movable valve core 6.2, which greatly reduces maintenance costs and difficulty.

[0046] Based on the premise that the movable valve core 6.2 is a separate component, in order to further improve the assembly efficiency of the movable valve core 6.2, the control valve assembly 6 also includes a limiting component 6.7. The limiting component 6.7 is placed on the air inlet side of the inner valve body 6.1 and abuts against the sealing end face 6.21 of the movable valve core 6.2. The limiting component 6.7 closes the opening of the inner valve body 6.1 on the air inlet side, and also has a hole for the movable rod 6.24 of the movable valve core 6.2 to pass through. During the assembly process, the limiting component 6.7 and the movable plug 6.25 are sequentially fitted onto the movable rod 6.24, thereby modularly assembling it into the inner valve body 6.1. At the same time, the limiting component 6.7 also has a stepped portion, which stops against the outer end face of the inner valve body 6.1, thereby constraining the initial position of the movable valve core 6.2.

[0047] In the above embodiment, the sealing end face 6.21 on the movable plug 6.25 specifically abuts against the axial end face of the limiting member 6.7 located inside the inner valve body 6.1 to achieve sealing. Through the above setting, the limiting member 6.7 can limit the maximum displacement of the movable valve core 6.2 on the air inlet side, prevent the movable valve core 6.2 from moving out of the normal working position due to excessive movement, and ensure that the movable valve core 6.2 is always in a stable and controllable working state during the gas cylinder docking and removal process.

[0048] Specifically, an annular groove 6.23 is provided on the air inlet end face 6.22. The annular groove 6.23 is located on the movable plug 6.25. The annular groove 6.23 can effectively guide the uniform flow of helium, optimize the flow path of gas at the first gas gap 7, make the helium flow rate more stable in the initial stage, and further improve the uniformity and controllability of the filling.

[0049] like Figure 5 and Figure 6 As shown, in a further embodiment of the valve stem assembly 5, the valve stem assembly 5 includes a valve stem 5.1 extending within the rubber sleeve 3, a second spring 5.2 receiving the rear portion of the valve stem 5.1, and a second positioning member 5.3 disposed within the air passage chamber 2. The valve stem 5.1 also has a radially extending portion 5.11 extending into the air passage chamber 2. The second spring 5.2 abuts against the radially extending portion 5.11 of the valve stem 5.1 and the second positioning member 5.3. The second positioning member 5.3 is provided with a connection to the air intake passage 6.3. The vent 5.31 is provided, wherein the second positioning member 5.3 is a snap ring member with a radially extending claw that abuts against the inner wall of the vent chamber 2 to provide support for the position of the valve stem assembly 5. Furthermore, the second positioning member 5.3 also abuts against the outlet end face of the inner valve body 6.1 in the axial direction, so that the vent 5.31 aligns with the inlet channel 6.3, ensuring that gas can smoothly pass through the valve stem assembly 5, achieving stable gas output, and guaranteeing the smoothness and reliability of the inflation process. It should be noted that the first positioning member 6.5 maintains the axial position of the control valve assembly 6 within the vent chamber 2 by abutting against the inner wall of the vent chamber 2.

[0050] During operation, the valve stem 5.1 can be deflected by an external force, causing the radial extension 5.11 to deflect and release the second air passage gap 8. After the external force is removed, the second spring 5.2 provides a restoring force when the valve stem 5.1 is actuated and abuts against the inner wall of the air passage chamber 2, thereby restoring the valve stem 5.1. This ensures that the valve stem 5.1 reliably seals the air outlet 4 under normal conditions. The rubber sleeve 3 provides cushioning and protection, reducing the impact and wear of external factors on the valve stem 5.1.

[0051] As a further embodiment of sealing the air outlet 4 of the valve stem assembly 5, the air outlet 4 has a stepped surface that connects with the air passage 2. Specifically, the stepped surface is disposed inside the air passage 2. The valve stem 5.1 has a radial extension 5.11 disposed opposite to the stepped surface. The radial extension 5.11 abuts against the stepped surface. To ensure the sealing effect, a second sealing ring 5.4 is preferably provided between the radial extension 5.11 and the stepped surface.

[0052] The fit between the stepped surface of the air passage and the radial extension 5.11 of the valve stem 5.1 (or the second sealing ring 5.4) further enhances the sealing between the valve stem assembly 5 and the valve housing 1, preventing gas leakage from the connection between the two. At the same time, this structure makes the movement trajectory of the valve stem 5.1 more stable during the oscillation process, ensuring the consistency of the size of the second air passage gap 8, thereby stabilizing the inflation flow rate and improving inflation accuracy and efficiency.

[0053] like Figure 1 and Figure 2 and Figure 7 As shown, specifically, the air passage chamber 2 is provided with a first step 1.1, a second step 1.2, and a third step 1.3 arranged sequentially towards the air outlet side. The first step 1.1 is arranged opposite to the control valve assembly 6, the second step 1.2 is arranged opposite to the support end of the valve stem assembly 5, and the third step 1.3 is arranged opposite to the sealing end of the valve stem assembly 5. The inner diameters of the first step 1.1, the second step 1.2, and the third step 1.3 decrease sequentially. The first positioning member 6.5 abuts against the first step 1.1, the second positioning member 5.3 abuts against the second step 1.2, and the radial extension 5.11 of the valve stem 5.1 abuts against the third step 1.3.

[0054] The first step 1.1, the second step 1.2, and the third step 1.3 within the air passage chamber 2 provide a precise installation positioning reference for the control valve assembly 6 and the valve stem assembly 5. This not only significantly improves the installation efficiency of each component but also ensures the accuracy of the component installation position. The stable installation structure reduces the shaking and wear between components caused by assembly errors, enhances the overall structural stability of the air filling valve assembly, extends the product's service life, and facilitates subsequent maintenance and repair.

[0055] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An air charge valve group configured with a control valve, characterized by, The utility model relates to a valve, which comprises: a valve shell (1) provided with a gas passing cavity (2) and a rubber sleeve (3) sleeved on the valve shell (1), the gas passing cavity (2) forms a gas outlet (4) on the gas outlet side of the valve shell (1), and a valve rod assembly (5) is arranged in the gas outlet (4), and the valve rod assembly (5) seals the gas outlet (4) in a normal state; a control valve group (6) is arranged on the gas inlet side of the valve shell (1), the control valve group (6) comprises an inner valve body (6.1) and a movable valve core (6.2) arranged in the inner valve body (6.1), a gas inlet channel (6.3) is formed in the inner valve body (6.1), the movable valve core (6.2) abuts against and seals the gas inlet channel (6.3) in a normal state, and the movable valve core (6.2) is actuated towards the gas outlet side and spaced apart from the gas inlet channel (6.3) by a first gas passing gap (7) in a gas inlet state, and the valve rod assembly (5) is actuated and deflected and spaced apart from the gas passing cavity (2) by a second gas passing gap (8) in the gas inlet state to connect the gas inlet channel (6.3) and the gas outlet (4).

2. An inflation valve group configured with a control valve according to claim 1, characterized in that: The movable valve core (6.2) is arranged in the gas inlet channel (6.3), the movable valve core (6.2) comprises a sealing end face (6.21) abutting against the axial end face of the inner valve body (6.1) and a gas inlet end face (6.22) extending from the sealing end face (6.21) towards the gas outlet side, and the gas inlet end face (6.22) is spaced apart from the inner wall of the inner valve body (6.1) by the first gas passing gap (7).

3. An inflation valve group configured with a control valve according to claim 1, characterized in that: The control valve group (6) further comprises a first spring (6.4) abutting between the movable valve core (6.2) and the inner end face of the inner valve body (6.1), and the first spring (6.4) actuates the movable valve core (6.2) to seal the gas inlet channel (6.3).

4. An inflation valve group configured with a control valve according to claim 1, characterized in that: The control valve group (6) further comprises a first positioning member (6.5) arranged outside the inner valve body (6.1) and a first sealing ring (6.6) received on the first positioning member (6.5), and the first sealing ring (6.6) abuts between the valve shell (1), the first positioning member (6.5) and the inner valve body (6.1).

5. An inflation valve group configured with a control valve according to claim 2, characterized in that: The movable valve core (6.2) comprises a movable rod (6.24) and a movable plug (6.25) sleeved on the movable rod (6.24), and the sealing end face (6.21) and the gas inlet end face (6.22) are arranged on the movable plug (6.25).

6. An inflation valve group configured with a control valve according to claim 2, characterized in that: A ring groove (6.23) is further formed in the gas inlet end face (6.22).

7. An inflation valve group configured with a control valve according to claim 2, characterized in that: The control valve group (6) further comprises a limiting member (6.7) arranged on the gas inlet side of the inner valve body (6.1) and abutting against the sealing end face (6.21) of the movable valve core (6.2).

8. An inflation valve group configured with a control valve according to claim 1, characterized in that: The air passing cavity (2) is provided with a first step (1.1), a second step (1.2) and a third step (1.3) arranged in sequence towards the air outlet side, the first step (1.1) is arranged opposite to the control valve group (6), the second step (1.2) is arranged opposite to the supporting end of the valve rod assembly (5), and the third step (1.3) is arranged opposite to the sealing end of the valve rod assembly (5).

9. An inflation valve group configured with a control valve according to claim 1, characterized in that: The valve rod assembly (5) comprises a valve rod (5.1) extending in the rubber sleeve (3), a second spring (5.2) received at the rear of the valve rod (5.1), and a second positioning member (5.3) arranged in the air passing cavity (2), the second positioning member (5.3) is provided with an air passing hole (5.31) opposite to the air inlet channel (6.3).

10. An inflation valve group configured with a control valve according to claim 9, characterized in that: The air outlet (4) has a step surface connected with the air passing cavity (2), the valve rod (5.1) has a radial extension (5.11) arranged opposite to the step surface, the radial extension (5.11) abuts against the step surface, or a second sealing ring (5.4) is arranged between the radial extension (5.11) and the step surface.

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