Quick inflating and deflating nozzle
By designing a fast charging and deflation nozzle including an inflatable assembly, a check diaphragm, a ventilation member, a sliding sleeve, a first sealing ring and a second sealing ring, the problems of troubles in operation and leakage of the existing air nozzle are solved, and a more efficient charging and deflation operation is achieved.
Patent Information
- Application Number
- CN202421937126.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The air nozzles in existing ship freight auxiliary equipment are operated through the rotating interface, making it difficult to ensure whether the interface is rotated in place, which can easily cause air leakage from the air nozzle and troublesome operation, affecting the efficiency of filling and deflation of rubber airbags.
A fast charging and deflation nozzle is designed, including an inflation assembly, a check diaphragm, a ventilation member, a sliding sleeve, a first sealing ring and a second sealing ring. The ventilation chamber covers the through holes of the ventilation member through the sliding sleeve to realize gas charging and discharging. After the inflation is completed, the check diaphragm seals the inflation passage to prevent air leakage.
This design avoids air leakage from the air nozzle, improves the efficiency of filling and deflation, makes operation more convenient, and can effectively prevent air leakage from the air nozzle during filling and deflation.
Smart Images
Figure CN222823791U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of ship freight auxiliary equipment, in particular to a fast filling and deflation nozzle. Background Art
[0002] When loading, the width of the gap between two rows of cargo is generally controlled to maintain the spacing between the cargoes, prevent the cargoes from colliding with each other, and prevent the cargoes from shaking during transportation. In order to maintain the spacing between the cargoes, rubber airbags are currently used to fill the gap between the two rows of cargoes. The rubber airbags have an air nozzle, through which air is inflated or exhausted. However, the existing air nozzles are opened or blocked by rotating the interface, and it is often difficult to ensure that the interface is rotated in place, which can easily cause air leakage. In addition, the interface needs to be rotated each time the air nozzle is opened or blocked, which is troublesome to operate. In addition, there are a large number of rubber airbags on board, which affects the efficiency of rubber airbag inflation and deflation. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides a quick inflation and deflation nozzle, which can avoid nozzle leakage and improve the inflation and deflation efficiency.
[0004] The technical solution of the utility model is achieved in this way:
[0005] A quick inflation and deflation nozzle, comprising an inflation assembly, a check diaphragm, a vent, a sliding sleeve, a first sealing ring and a second sealing ring;
[0006] The vent has an upper cavity penetrating the upper end thereof and a lower cavity penetrating the lower end thereof, the upper cavity is separated from the lower cavity, the side wall of the upper cavity is provided with an upper through hole, and the side wall of the lower cavity is provided with a lower through hole;
[0007] The inflatable component has an inflatable channel running through both ends thereof, the outlet end of the inflatable channel is connected to the upper end of the upper cavity so that the inflatable channel is connected to the upper cavity, and the check diaphragm covers the outlet port of the inflatable channel and is located in the upper cavity;
[0008] The sliding sleeve is arranged on the outside of the ventilator, the first sealing ring is arranged on the upper part of the inner cavity of the sliding sleeve, and the second sealing ring is arranged on the lower part of the inner cavity of the sliding sleeve. The first sealing ring and the second sealing ring are both in contact with the outer wall of the ventilator. A ventilation cavity is arranged between the first sealing ring and the second sealing ring. The diameter of the ventilation cavity is larger than the outer diameter of the ventilator, and the height of the ventilation cavity is larger than the distance from the upper end of the upper through hole to the lower end of the lower through hole.
[0009] Preferably, the upper through hole is arranged on the bottom side wall of the upper cavity, and the lower through hole is arranged on the top side wall of the lower cavity.
[0010] Preferably, the inflation component includes an inflation joint, a valve seat, a ball, a spring and a spring seat, the inflation joint is embedded in the upper end of the valve seat, the spring seat is embedded in the lower end of the valve seat, the inflation joint has a first channel running through both ends thereof, the valve seat has a second channel running through both ends thereof, the spring seat has a third channel running through both ends thereof, the first channel, the second channel and the third channel are connected in sequence to form an inflation channel, the ball is located in the second channel, and the two ends of the spring respectively abut the bottom of the ball and the spring seat so that the ball can block the outlet of the first channel.
[0011] Preferably, the spring seat includes a main body and a convex portion protruding from the top surface of the main body, the convex portion extends into the second channel, the third channel runs through the convex portion and the main body, and the lower end of the spring is sleeved on the outside of the convex portion and abuts the main body.
[0012] Preferably, a pore is formed on the side wall of the convex portion, and the pore communicates with the second channel and the third channel.
[0013] Preferably, the inflation component further comprises a sealing plug, which is arranged between the outlet end of the first channel and the sphere, and has a cavity which passes through from top to bottom to connect the first channel and the second channel.
[0014] Preferably, it also includes a diaphragm seat arranged in the upper cavity, the diaphragm seat is a cylindrical structure with an opening at the top, and a plug hole and a vent hole are provided at the bottom of the diaphragm seat. The check diaphragm includes a sheet portion and a plug portion protruding from the top surface of the sheet portion, the plug portion is inserted into the plug hole, and the sheet portion covers the vent hole.
[0015] Preferably, the first sealing ring and / or the second sealing ring is a U-shaped or Y-shaped sealing ring.
[0016] Preferably, a third sealing ring is provided between the inflation assembly and the ventilator.
[0017] Preferably, the lower end of the vent is connected to an airbag connector, the airbag connector is used to plug the airbag, the airbag connector has a fourth channel running through both ends thereof, and the fourth channel is connected to the lower cavity.
[0018] Compared with the prior art, the beneficial effects of the utility model are:
[0019] (1) The quick inflation and deflation nozzle comprises an inflation component, a check diaphragm, a vent, a sleeve, a first sealing ring and a second sealing ring. When the airbag needs to be inflated, the sleeve is slid so that the vent cavity of the sleeve covers the upper through hole and the lower through hole of the vent. The inflation is carried out through the inflation component, and the gas enters the inflation channel of the inflation component. Under the action of the inflation thrust, the check diaphragm is deformed, and the gas can enter the upper cavity of the vent from the gap between the outlet port of the inflation channel and the check diaphragm, and then enter the vent cavity from the upper through hole and then enter the lower cavity through the lower through hole, and finally supply gas to the airbag from the lower end of the lower cavity. When the airbag needs to be deflated, the sleeve is slid upward to expose the lower through hole, and the gas in the airbag enters the lower cavity and is discharged outward through the lower through hole. That is to say, when using the quick inflation and deflation nozzle for inflation and deflation, the user only needs to push the sleeve. Compared with the rotary interface of the prior art, the operation is more convenient and the inflation and deflation efficiency can be improved.
[0020] (2) After the inflation is completed, the inflation assembly stops inflating. Under the action of the reverse thrust of the gas, the check diaphragm covers the outlet port of the inflation channel again to block the inflation channel, thereby preventing the rapid inflation and deflation nozzle from leaking. In addition, the first sealing ring and the second sealing ring in the sliding sleeve can also play a role in sealing the ventilation cavity, further preventing the nozzle from leaking.
[0021] (3) Since the first sealing ring and the second sealing ring are provided in the sliding sleeve, the sliding sleeve will not slide automatically under the friction force of the first sealing ring and the second sealing ring, and the sliding sleeve can be maintained in one position. There is no need to hold the sliding sleeve during the inflation and deflation process, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is an exploded view of the utility model;
[0023] Figure 2 It is a cross-sectional view of the utility model in an inflated state;
[0024] Figure 3 It is a cross-sectional view of the ventilator in the utility model;
[0025] Figure 4 It is a cross-sectional view of the utility model in a deflated state;
[0026] Figure 5 It is a cross-sectional view of the inflatable component in the utility model;
[0027] Figure 6 It is a three-dimensional structural schematic diagram of the spring seat in the utility model;
[0028] Figure 7 It is a schematic diagram of the split structure of the non-return diaphragm and the diaphragm seat of the utility model;
[0029] Figure 8It is a cross-sectional view of the spring seat, the check diaphragm and the diaphragm seat in the utility model.
[0030] Figure ID:
[0031] 1-inflating assembly; 11-inflating connector; 111-first channel; 12-valve seat; 121-second channel; 13-ball; 14-spring; 15-spring seat; 151-third channel; 152-main body; 1521-flange; 153-convex portion; 1531-air hole; 16-sealing plug; 2-check diaphragm; 21-sheet portion; 22-plug-in portion; 221-bolt; 3-ventilator; 31-upper cavity; 311-upper through hole; 32-lower cavity; 321-lower through hole; 4-sleeve; 41-ventilation cavity; 5-first sealing ring; 6-second sealing ring; 7-diaphragm seat; 71-plug-in hole; 72-through hole; 8-third sealing ring; 9-airbag connector; 10-fourth sealing ring. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0034] See also Figures 1 to 4 The utility model provides a rapid inflation and deflation nozzle, comprising an inflation component 1, a check diaphragm 2, a vent 3, a sliding sleeve 4, a first sealing ring 5 and a second sealing ring 6;
[0035] The vent 3 has an upper cavity 31 penetrating the upper end thereof and a lower cavity 32 penetrating the lower end thereof. The upper cavity 31 and the lower cavity 32 are separated. An upper through hole 311 is provided on the side wall of the upper cavity 31, and a lower through hole 321 is provided on the side wall of the lower cavity 32.
[0036] The inflatable component 1 has an inflatable channel running through both ends thereof, the outlet end of the inflatable channel is connected to the upper end of the upper cavity 31 so that the inflatable channel is connected to the upper cavity 31, the check diaphragm 2 covers the outlet port of the inflatable channel and is located in the upper cavity 31, and the check diaphragm 2 can be deformed so that the outlet end of the inflatable channel is opened and closed;
[0037] The sliding sleeve 4 is arranged on the outer side of the ventilator 3, and the sliding sleeve 4 can slide relative to the ventilator 3. The first sealing ring 5 is arranged on the upper part of the inner cavity of the sliding sleeve 4, and the second sealing ring 6 is arranged on the lower part of the inner cavity of the sliding sleeve 4. The first sealing ring 5 and the second sealing ring 6 are both in contact with the outer wall of the ventilator 3. A ventilation cavity 41 is arranged between the first sealing ring 5 and the second sealing ring 6. The first sealing ring 5 and the second sealing ring 6 can close the ventilation cavity 41 to prevent gas from overflowing from the gap between the sliding sleeve 4 and the ventilator 3. The diameter of the ventilation cavity 41 is larger than the outer diameter of the ventilator 3, and the height of the ventilation cavity 41 is larger than the distance from the upper end of the upper through hole 311 to the lower end of the lower through hole 321.
[0038] join Figure 2 When the airbag needs to be inflated, the sliding sleeve 4 makes the ventilation cavity 41 cover the upper through hole 311 and the lower through hole 321, and inflate through the inflation component 1. The gas enters the inflation channel of the inflation component 1. Under the action of the inflation thrust, the check diaphragm 2 is deformed, and the gas can enter the upper cavity 31 of the ventilator 3 from the gap between the outlet port of the inflation channel and the check diaphragm 2, and then enter the ventilation cavity 41 from the upper through hole 311 and then enter the lower cavity 32 through the lower through hole 321, and finally supply gas to the airbag from the lower end of the lower cavity 32. After the inflation is completed, the inflation component 1 stops inflating. Under the action of the reverse thrust of the gas, the check diaphragm 2 covers the outlet port of the inflation channel again to block the inflation channel, thereby avoiding leakage of the rapid inflation and deflation nozzle. In addition, the first sealing ring 5 and the second sealing ring 6 in the sliding sleeve 4 can also play a role in sealing the ventilation cavity 41, further preventing leakage of the nozzle;
[0039] See also Figure 4 When the airbag needs to be deflated, the sliding sleeve 4 is slid upward to expose the lower through hole 321, and the gas in the airbag enters the lower cavity 32 and is discharged outward through the lower through hole 321;
[0040] That is to say, when using the quick inflation and deflation nozzle to inflate and deflate, the user only needs to push the sliding sleeve 4, which is more convenient to operate than the rotary interface in the prior art and can improve the efficiency of inflation and deflation.
[0041] Since the first sealing ring 5 and the second sealing ring 6 are arranged in the sliding sleeve 4, the sliding sleeve 4 will not slide automatically under the friction force of the first sealing ring 5 and the second sealing ring 6, and the sliding sleeve 4 can be maintained in one position. There is no need to hold the sliding sleeve 4 during the inflation and deflation process, which is more convenient to use.
[0042] Preferably, the upper through hole 311 is arranged on the bottom side wall of the upper cavity 31, and the lower through hole 321 is arranged on the top side wall of the lower cavity 32, shortening the distance between the upper through hole 311 and the lower through hole 321 so that the path for the gas in the upper cavity 31 to enter the lower cavity 32 through the upper through hole 311, the ventilation cavity 41 and the lower through hole 321 during inflation is as short as possible, which is beneficial to accelerate the circulation of gas between the upper cavity 31 and the lower cavity 32, thereby speeding up the inflation process.
[0043] For details, see Figure 1 , Figure 2 , Figures 5 to 8 The inflation component 1 includes an inflation joint 11, a valve seat 12, a ball 13, a spring 14 and a spring seat 15. The inflation joint 11 is embedded in the upper end of the valve seat 12, and the spring seat 15 is embedded in the lower end of the valve seat 12. The inflation joint 11 has a first channel 111 running through both ends thereof, the valve seat 12 has a second channel 121 running through both ends thereof, and the spring seat 15 has a third channel 151 running through both ends thereof. The first channel 111, the second channel 121 and the third channel 151 are connected in sequence to form an inflation channel. The ball 13 is located in the second channel 121, and the two ends of the spring 14 respectively abut against the bottom of the ball 13 and the spring seat 15 so that the ball 13 can block the outlet of the first channel 111, and the lower port of the third channel 151 is the outlet port of the inflation channel.
[0044] When the airbag needs to be inflated, the sliding sleeve 4 makes the ventilation cavity 41 cover the upper through hole 311 and the lower through hole 321, and the air is inflated through the inflation component 1. The gas is filled in from the inflation joint 11, and the ball 13 compresses the spring 14 downward under the action of the inflation thrust. The ball 13 releases the blockage of the outlet of the first channel 111, and the gas can enter the second channel 121 from the first channel 111, and then enter the upper cavity 31 of the ventilator 3 through the third channel 151 from the gap between the air outlet port of the inflation channel and the check diaphragm 2, and then enter the ventilation cavity 41 from the upper through hole 311 and then enter the lower cavity 32 through the lower through hole 321, and finally supply air to the airbag from the lower end of the lower cavity 32. After the inflation is completed, the inflation component 1 stops inflating, and under the action of the reverse thrust of the gas, the check diaphragm 2 re-covers the outlet port of the inflation channel to block the inflation channel, and the spring 14 rebounds to make the ball 13 block the outlet of the first channel 111 to further prevent the inflation channel from leaking, thereby effectively avoiding leakage of the rapid inflation and deflation nozzle. At the same time, the first sealing ring 5 and the second sealing ring 6 in the sliding sleeve 4 can also play the role of sealing the ventilation cavity 41 to further prevent leakage of the nozzle.
[0045] In this embodiment, the inflation connector 11 is screwed to the upper end of the second channel 121 , and the spring seat 15 is screwed to the lower end of the second channel 121 , so as to facilitate the installation of the inflation connector 11 , the valve seat 12 and the spring seat 15 .
[0046] Preferably, see Figure 1 , Figure 2 , Figure 5 and Figure 6 The spring seat 15 includes a body 152 and a convex portion 153 protruding from the top surface of the body 152, the convex portion 153 extends into the second channel 121, the third channel 151 passes through the convex portion 153 and the body 152, and the lower end of the spring 14 is sleeved on the outer side of the convex portion 153 and abuts against the body 152. The setting of the convex portion 153 facilitates the installation of the spring 14 and prevents the spring 14 from deviating and affecting the ball 13 from blocking the outlet of the first channel 111.
[0047] Preferably, an air hole 1531 is opened on the side wall of the protrusion 153, and the air hole 1531 connects the second channel 121 and the third channel 151, so that the gas in the second channel 121 can enter the third channel 151 from the upper port of the third channel 151 or the air hole 1531, thereby increasing the air inlet position of the third channel 151, which is conducive to accelerating the gas to enter the third channel 151.
[0048] In this embodiment, the edge of the body 152 is provided with an external thread, the lower end of the second channel 121 is provided with an internal thread, and the spring seat 15 is screwed to the lower end of the second channel 121 through the external thread and the internal thread. Further, the bottom edge of the body 152 protrudes outward to form a flange 1521, and the top surface of the flange 1521 abuts against the bottom surface of the valve seat 12 to prompt the spring seat 15 to be screwed into the valve seat 12 in place, which is convenient for assembly.
[0049] Preferably, the inflatable component 1 further includes a sealing plug 16, which is disposed between the outlet end of the first channel 111 and the sphere 13. The sealing plug 16 has a cavity that penetrates from top to bottom to connect the first channel 111 and the second channel 121. The setting of the sealing plug 16 can seal the gap between the sphere 13 and the inflation connector 11 when the sphere 13 blocks the outlet of the first channel 111, thereby improving the sealing effect of the sphere and further preventing air leakage. The sealing plug 16 is generally made of an elastic material, such as rubber, silicone, etc. The elastic material will produce a slight deformation when subjected to the pressure of the sphere 13, so that the sealing plug 16 and the sphere 13 and the inflation connector 11 that are in contact with each other have a closer contact, thereby achieving a better sealing effect.
[0050] In this embodiment, see Figure 1 , Figure 2 , Figure 7 and Figure 8The quick filling and discharging nozzle also includes a diaphragm seat 7 arranged in the upper cavity 31. The diaphragm seat 7 is a cylindrical structure with an upper opening. The bottom of the diaphragm seat 7 is provided with a plug hole 71 and a vent hole 72. The check diaphragm 2 includes a sheet portion 21 and a plug portion 22 protruding from the top surface of the sheet portion 21. The plug portion 22 is inserted into the plug hole 71, and the sheet portion 21 covers the vent hole 72. The diaphragm seat 7 is used to install the check diaphragm 2. The plug-in portion 22 of the check diaphragm 2 can be inserted into the plug-in hole 71 of the diaphragm seat 7. When the airbag needs to be inflated, the sliding sleeve 4 makes the ventilation cavity 41 cover the upper through hole 311 and the lower through hole 321. The air is inflated through the inflation component 1, and the gas is filled in from the inflation joint 11. Under the action of the inflation thrust, the ball 13 compresses the spring 14 downward, and the ball 13 releases the blockage of the outlet of the first channel 111. The gas can enter the second channel 121 from the first channel 111, and then pass through the third channel 151 and the ventilation hole 72 of the diaphragm seat 7 in turn, and then enter the upper cavity 31 of the ventilator 3 from the gap between the diaphragm seat 7 and the check diaphragm 2, and then enter the ventilation cavity 41 from the upper through hole 311 and then enter the lower cavity 32 through the lower through hole 321, and finally supply air to the airbag from the lower end of the lower cavity 32. After the inflation is completed, the inflation component 1 stops inflating, and under the action of the reverse thrust of the gas, the check diaphragm 2 re-covers the vent hole 72 of the diaphragm seat 7 to block the inflation channel, and the spring 14 rebounds to make the ball 13 block the outlet of the first channel 111 to further prevent the inflation channel from leaking, thereby effectively avoiding leakage of the rapid inflation and deflation nozzle. At the same time, the first sealing ring 5 and the second sealing ring 6 in the sliding sleeve 4 can also play the role of sealing the ventilation cavity 41 to further prevent leakage of the nozzle.
[0051] Preferably, see Figure 7 and Figure 8 The plug hole 71 is located at the bottom center of the diaphragm seat 7, and a plurality of vent holes 72 are arranged around the plug hole 71. The plurality of vent holes 72 are arranged around the plug hole 71 located at the bottom center of the diaphragm seat 7, so that the diaphragm seat 7 can be evenly inflated through the plurality of vent holes 72, which is conducive to maintaining the stability of the air pressure in the air nozzle during the inflation process.
[0052] Preferably, a latching protrusion 221 is provided on the plug-in portion 22, and the top surface of the latching protrusion 221 is arc-shaped, which facilitates the plug-in portion 22 to be inserted into the plug-in hole 71 from bottom to top. After the plug-in portion 22 is plugged in, the bottom surface of the latching protrusion 221 abuts against the inner bottom surface of the diaphragm seat 7 to prevent the plug-in portion 22 from slipping out of the plug-in hole 71.
[0053] See also Figure 2 In this embodiment, the first sealing ring 5 and / or the second sealing ring 6 are U-shaped sealing rings, which are conducive to the sealing between the ventilator 3 and the sliding sleeve 4 and facilitate the sliding of the sliding sleeve 4. In other embodiments, the first sealing ring 5 and / or the second sealing ring 6 can be Y-shaped sealing rings, which can also enhance the sealing effect between the ventilator 3 and the sliding sleeve 4 and facilitate the sliding of the sliding sleeve 4.
[0054] Preferably, see Figure 1 In order to enhance the sealing effect between the inflatable component 1 and the vent 3, a third sealing ring 8 is provided between the inflatable component 1 and the vent 3 to further prevent air leakage from the air nozzle. In this embodiment, the third sealing ring 8 is provided between the valve seat 12 and the vent 3.
[0055] Preferably, Figure 2 The lower end of the vent 3 is connected with an airbag connector 9, which is used to plug the airbag. The airbag connector 9 has a fourth channel running through both ends thereof, and the fourth channel is connected to the lower cavity 32, so that the lower cavity 32 and the fourth channel are ventilated. When inflating, the gas enters the airbag from the lower cavity 32 through the fourth channel, and when deflated, the gas enters the lower cavity 32 from the airbag through the fourth channel. The setting of the airbag connector 9 enables the air nozzle to be installed on the airbag. Furthermore, in order to prevent air leakage between the vent 3 and the airbag connector 9, a fourth sealing ring 10 is provided between the vent 3 and the airbag connector 9 to seal the gap between the vent 3 and the airbag connector 9.
[0056] In order to prompt the sliding sleeve 4 to slide into place, the outer diameter of the airbag joint 9 is larger than the outer diameter of the ventilator 3. When the sliding sleeve 4 slides upward to abut against the airbag joint 9, the ventilation cavity 41 of the sliding sleeve 4 just covers the upper through hole 311 and the lower through hole 321, and the airbag can be inflated at this time; the top edge of the ventilator 3 protrudes outward to form a brim, and when the sliding sleeve 4 slides upward to abut against the brim, the lower through hole 321 is just completely exposed, and the airbag is deflated outward.
[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A quick inflation and deflation nozzle, characterized in that: It includes an inflation assembly, a check diaphragm, a vent, a sliding sleeve, a first sealing ring and a second sealing ring; The vent has an upper cavity penetrating the upper end thereof and a lower cavity penetrating the lower end thereof, the upper cavity is separated from the lower cavity, the side wall of the upper cavity is provided with an upper through hole, and the side wall of the lower cavity is provided with a lower through hole; The inflatable component has an inflatable channel running through both ends thereof, the outlet end of the inflatable channel is connected to the upper end of the upper cavity so that the inflatable channel is connected to the upper cavity, and the check diaphragm covers the outlet port of the inflatable channel and is located in the upper cavity; The sliding sleeve is arranged on the outer side of the ventilator, the first sealing ring is arranged on the upper part of the inner cavity of the sliding sleeve, and the second sealing ring is arranged on the lower part of the inner cavity of the sliding sleeve. The first sealing ring and the second sealing ring are both in contact with the outer wall of the ventilator, and a ventilating cavity is arranged between the first sealing ring and the second sealing ring. The diameter of the ventilating cavity is larger than the outer diameter of the ventilator, and the height of the ventilating cavity is larger than the distance from the upper end of the upper through hole to the lower end of the lower through hole.
2. The rapid inflation and deflation nozzle according to claim 1, characterized in that: The upper through hole is arranged on the bottom side wall of the upper cavity, and the lower through hole is arranged on the top side wall of the lower cavity.
3. The rapid inflation and deflation nozzle according to claim 1, characterized in that: The inflation component includes an inflation joint, a valve seat, a ball, a spring and a spring seat, the inflation joint is embedded in the upper end of the valve seat, the spring seat is embedded in the lower end of the valve seat, the inflation joint has a first channel running through both ends thereof, the valve seat has a second channel running through both ends thereof, the spring seat has a third channel running through both ends thereof, the first channel, the second channel and the third channel are connected in sequence to form the inflation channel, the ball is located in the second channel, and the two ends of the spring respectively abut the bottom of the ball and the spring seat so that the ball can block the outlet of the first channel.
4. The rapid inflation and deflation nozzle according to claim 3, characterized in that: The spring seat includes a main body and a convex portion protruding from the top surface of the main body, the convex portion extends into the second channel, the third channel runs through the convex portion and the main body, and the lower end of the spring is sleeved on the outside of the convex portion and abuts against the main body.
5. The rapid inflation and deflation nozzle according to claim 4, characterized in that: An air hole is formed on the side wall of the convex portion, and the air hole is connected with the second channel and the third channel.
6. The rapid inflation and deflation nozzle according to claim 3, characterized in that: The inflatable component also includes a sealing plug, which is arranged between the outlet end of the first channel and the sphere, and has a cavity that passes through from top to bottom to connect the first channel and the second channel.
7. The rapid inflation and deflation nozzle according to claim 1, characterized in that: It also includes a diaphragm seat arranged in the upper cavity, the diaphragm seat is a cylindrical structure with an upper opening, the bottom of the diaphragm seat is provided with a plug hole and a vent hole, the non-return diaphragm includes a sheet portion and a plug portion protruding from the top surface of the sheet portion, the plug portion is inserted into the plug hole, and the sheet portion covers the vent hole.
8. The rapid inflation and deflation nozzle according to claim 1, characterized in that: The first sealing ring and / or the second sealing ring is a U-shaped or Y-shaped sealing ring.
9. The rapid inflation and deflation nozzle according to claim 1, characterized in that: A third sealing ring is provided between the inflation assembly and the ventilator.
10. The rapid inflation and deflation nozzle according to claim 1, characterized in that: The lower end of the vent is connected with an airbag connector, and the airbag connector is used for plugging the airbag. The airbag connector has a fourth channel running through both ends thereof, and the fourth channel is communicated with the lower cavity.