Quick reaction reversing assembly applied to portable inflatable baby

Abstract

The invention discloses a quick response reversing assembly applied to a portable air inflation device, relates to the technical field of air inflation devices, and aims at improving a ventilation pipe in the air exhaust action on the basis of the air suction / exhaust action of a piston pump, namely changing the communicating / blocking state in the ventilation pipe through the rotating action of a ventilation rotating ball on the basis of the ventilation rotating ball. On the basis, an improvement scheme about a single-pass ring pipe and a two-pass ring pipe is provided, arc-shaped sliding blocks are arranged in the two-pass ring pipe, when the ventilation rotating ball is switched to block the ventilation pipe, the first arc-shaped sliding block in the single-pass ring pipe accelerates the ventilation rotating ball to recover the blocking action with the high pressure difference as power, and the second arc-shaped sliding block in the two-pass ring pipe accelerates the ventilation rotating ball to block the ventilation pipe. Furthermore, the influence process on the environmental pressure in the dynamic bin when the arc-shaped sliding block I slides is utilized, and a rubber leather sheath arranged in the air vent is utilized to further accelerate plugging, so that the situation that the inflation efficiency is reduced due to high pressure difference is avoided in a high-reaction-capacity action mode; and secondly, the purpose of indirectly controlling the inflation / deflation action is achieved through the two-way ring pipe.

Description

Technical Field

[0001] The invention relates to the technical field of air-filling treasures, and in particular to a quick-response reversing component used in a portable air-filling treasure. Background Art

[0002] A brief description of the portable inflatable treasure: it is mainly based on a motor structure or a piston cylinder. Taking the piston cylinder operation form as an example, it specifically utilizes the reciprocating motion of the piston. When the piston moves backward, the cylinder becomes larger (inhalation), and when the piston moves forward, the cylinder becomes smaller (exhaust). Please refer to the relevant content involved in the application number CN2022221977863.

[0003] The key action in the inflation process is the transition from suction to exhaust. The inhaled gas is first retained and then expelled through exhaustion to complete the inflation process. Taking the actual process as an example, when inflating a closed area, the ambient pressure in the closed area will also affect the suction action. For example, when inflating a tire, after completing one inflation (exhaust) cycle, the ambient pressure inside the tire will interfere with the suction action, and even cause the gas inside the tire to flow back due to the high pressure difference.

[0004] To address this type of problem, most approaches add an anti-backflow structure to the piston structure, specifically, to adaptively move or deform in coordination with the suction / exhaust actions to complete a single sealing effect. However, for the inflation action, firstly, because the switching frequency of the suction / exhaust actions is relatively fast, the anti-backflow action may fail during high-frequency switching. Secondly, if the anti-backflow action is not timely at the moment of switching between the suction / exhaust actions, it will also cause airflow leakage and increase the repeatability of the inflation action. This application proposes a solution to this problem. Summary of the Invention

[0005] The purpose of the present invention is to provide a quick-response reversing component for use in a portable inflator, and to optimize the inflation principle and process of the inflator, because inflation is completed by the cooperation of the two actions of suction / exhaust, but the pressure difference problem causes airflow leakage and increases the repeatability of the inflation action.

[0006] The object of the present invention can be achieved by the following technical solution: a quick-response reversing assembly used in a portable inflatable device, comprising an outer shell and a filter element, a piston pump, and an electrical component arranged inside the outer shell, wherein an air inlet nozzle and an air outlet nozzle are respectively arranged at both ends of the outer shell, and a vent pipe connected to the air outlet nozzle is arranged at the output end of the piston pump;

[0007] The middle section of the ventilation pipe is provided with a ball head, and a ventilation rotating ball is provided in the inner position of the ventilation pipe corresponding to the ball head. A single-pass ring tube and a double-pass ring tube are provided on the outer walls of the ventilation pipe corresponding to the ventilation rotating ball, respectively. The ventilation pipe is provided with an actuating motor corresponding to the ventilation rotating ball.

[0008] The two ends of the double-pass ring tube and one end of the single-pass ring tube close to the air outlet nozzle are connected to the interior of the ventilation pipe, the other end of the single-pass ring tube is not connected to the interior of the ventilation pipe, and the other end of the single-pass ring tube is closed, and the ventilation ball is located in the middle of the two ends of the single-pass ring tube and the double-pass ring tube.

[0009] It is further configured as follows: a vent corresponding to the inside of the vent pipe is opened in the ventilation rotating ball, and an action rod is installed at the output end of the action motor.

[0010] It is further configured as follows: the action rod passes through the ball head and is rotationally connected to the ventilation pipe, and the action rod is fixedly connected to the ventilation rotating ball.

[0011] It is further configured as follows: the interior of the actuating rod is hollow, a rubber cover is installed on the outer wall position of the actuating rod corresponding to the vent, and an air groove is opened on the outer wall position of the actuating rod corresponding to the rubber cover.

[0012] It is further configured as follows: an arc-shaped slider 1 and an arc-shaped slider 2 are respectively slidably installed inside the single-pass ring tube and the double-pass ring tube, a connecting rod is connected between the arc-shaped slider 1, the arc-shaped slider 2 and the ventilation rotating ball, and the interior of the single-pass ring tube is respectively configured as a dynamic bin and a contact bin through the arc-shaped slider 1.

[0013] It is further configured as follows: a hose is connected between the inside of the dynamic chamber and the lower end of the action rod, and the dynamic chamber and the contact chamber are arranged along the direction from the air inlet nozzle to the air outlet nozzle.

[0014] It is further configured as follows: the interior of the second arc-shaped slider is hollow, and rubber sleeves are provided at both ends of the second arc-shaped slider, and an air pressure sensor is provided at the middle section of the second arc-shaped slider.

[0015] It is further configured that: the center points of the cross sections of the single-pass ring tube and the double-pass ring tube, the center point of the ventilation rotating ball and the center point of the action rod are on the same vertical axis.

[0016] The present invention has the following beneficial effects:

[0017] 1. With the piston pump as the key moving part of the inflator, without changing the action mode of the piston pump, the improvement is mainly aimed at the vent pipe in the exhaust action. Its essence is to change the connection / blocking state inside the vent pipe based on the ventilation ball. First of all, the action structure is based on the action motor. The key lies in the single-pass ring pipe and double-pass ring pipe set for the ball head position. Specifically, the high pressure difference generated at the moment of switching between inflation and exhaust action is utilized. The performance is: when the ventilation ball is switched to block the vent pipe, the arc-shaped slider in the single-pass ring pipe uses the high pressure difference as "power" to accelerate the ventilation ball to resume the blocking action, thereby preliminarily accelerating the ventilation ball to resume the blocking action;

[0018] 2. Based on the above content, the sliding trajectory of the arc-shaped slider 1 is further utilized. First, the structural characteristics of the single-pass ring tube are limited to ensure that one end thereof is in a closed state, thereby increasing the ambient pressure in the dynamic chamber when the arc-shaped slider 1 performs directional rotation. The key action is: through indirect conversion, part of the gas in the dynamic chamber is squeezed into the rubber sleeve inside the corresponding vent through the high pressure difference, further accelerating the sealing time of the vent. When the inflation / exhaust action is switched at a high frequency, the reverse leakage caused by the high pressure difference is reduced with a fast response structure. Secondly, the double-pass ring tube is further utilized. The key purpose of the double-pass ring tube is to express the pressure environment in the inflation / exhaust action through indirect feedback, so as to indirectly control the action mode of the piston pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic structural diagram of a quick-response reversing assembly used in a portable inflatable device proposed by the present invention;

[0021] Figure 2 is a cross-sectional view of the outer shell of the present invention;

[0022] Figure 3 Schematic diagram of the structure of the vent pipe in the present invention;

[0023] Figure 4 This is a transverse cross-sectional view of the ventilator;

[0024] Figure 5 It is a cross-sectional view of the ventilation pipe along the horizontal plane;

[0025] Figure 6 for Figure 5 A top view of

[0026] Figure 7 This is an axial cross-section of the ventilation tube.

[0027] In the figure: 1. Outer shell; 2. Filter element; 3. Piston pump; 301. Ventilation pipe; 4. Electrical components; 5. Single-pass annular pipe; 501. Dynamic chamber; 502. Contact chamber; 503. Arc-shaped slider 1; 6. Actuating motor; 7. Double-pass annular pipe; 701. Arc-shaped slider 2; 702. Air pressure sensor; 8. Ventilation ball; 9. Actuating rod; 10. Rubber holster. DETAILED DESCRIPTION

[0028] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all 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.

[0029] Example 1: Optimizing the inflation principle of the inflatable treasure. Since inflation is completed by the cooperation of the two actions of suction and exhaust, the pressure difference problem causes air leakage and increases the repeatability of the inflation action. The following technical solutions are proposed:

[0030] Reference Figures 1 to 7 The quick-response reversing assembly used in the portable inflatable device in this embodiment includes an outer shell 1 and a filter element 2, a piston pump 3, and an electrical component 4 disposed inside the outer shell 1. An air inlet nozzle and an air outlet nozzle are respectively disposed at both ends of the outer shell 1. A vent pipe 301 connected to the air outlet nozzle is disposed at the output end of the piston pump 3.

[0031] The middle section of the vent pipe 301 is provided with a ball head, and a ventilation rotating ball 8 is provided in the inner position of the vent pipe 301 corresponding to the ball head. A single-pass ring pipe 5 and a double-pass ring pipe 7 are provided on the outer walls of the vent pipe 301 corresponding to the ventilation rotating ball 8, respectively. The vent pipe 301 is provided with an actuating motor 6 corresponding to the ventilation rotating ball 8.

[0032] The two ends of the double-pass ring tube 7 and the end of the single-pass ring tube 5 near the air outlet are connected to the interior of the ventilation pipe 301, and the other end of the single-pass ring tube 5 is not connected to the interior of the ventilation pipe 301, and the other end of the single-pass ring tube 5 is closed. The ventilation rotating ball 8 is located in the middle position between the two ends of the single-pass ring tube 5 and the double-pass ring tube 7. The ventilation hole corresponding to the interior of the ventilation pipe 301 is opened in the ventilation rotating ball 8. The output end of the action motor 6 is installed with an action rod 9. The action rod 9 passes through the ball head and is rotatably connected to the ventilation pipe 301, and the action rod 9 and the ventilation rotating ball 8 are fixedly connected.

[0033] Basic principle: A brief description of the structure of the inflatable treasure: its essence is to use a suction motor or a piston pump 3 as the power structure. The inflation process of the suction motor is a continuous process, while the piston pump 3 is mainly based on reciprocating inflation action. The action process of the piston pump 3 includes: the piston moves forward in the pump body, thereby inhaling external air, and then the piston moves in the reverse direction in the pump body, thereby pumping out the inhaled air again to complete the inflation action, combined with Figure 2 Explanation: When the external air is sucked in, it will also pass through the filtering action of the filter element 2 to explain the action of inflating the tire:

[0034] The ambient pressure inside the tire also affects the suction / exhaust operation of the piston pump 3. Therefore, the present invention specifically adds a vent pipe 301 at the output end of the piston pump 3 without changing its structure. The piston pump 3 mainly exhausts through the vent pipe 301, ensuring that the inhaled gas is discharged through the vent pipe 301-air outlet nozzle.

[0035] Combined with Figure 3 and Figure 4 It is explained that: the ventilation ball 8 is provided inside the integral ventilation tube 301. The ventilation ball 8 is mainly rotated in a directional and fixed angle inside the ball head by the action motor 6, and a ventilation port is opened in the ventilation ball 8. Specifically, the connection state inside the ventilation tube 301 is changed by changing the rotation angle of the ventilation ball 8. Figure 6 For example, the ventilation tube 301 in the figure is in a connected state, so that inflation can be performed through the piston pump 3. On the contrary, when the ventilation ball 8 rotates forward or reversely by a certain angle, the inside of the ventilation tube 301 is in a closed state, preventing the gas from flowing back into the piston pump 3 due to the high-pressure environment. This part is the basic content of the present invention.

[0036] Example 2: The overall airflow reversing process is described by combining a single-pass annular tube and a double-pass annular tube:

[0037] The interior of the actuating rod 9 is hollow, and a rubber sheath 10 is installed on the outer wall of the actuating rod 9 corresponding to the vent. An air groove is opened on the outer wall of the actuating rod 9 corresponding to the rubber sheath 10. An arc-shaped slider 1 503 and an arc-shaped slider 2 701 are slidably installed inside the single-pass annular tube 5 and the double-pass annular tube 7, respectively. A connecting rod is connected between the arc-shaped slider 1 503 and the arc-shaped slider 2 701 and the ventilation rotating ball 8. The interior of the single-pass annular tube 5 is respectively provided with a dynamic chamber 501 and a contact chamber 502 through the arc-shaped slider 1 503.

[0038] A hose is connected between the inside of the dynamic bin 501 and the lower end of the action rod 9. The dynamic bin 501 and the contact bin 502 are arranged along the direction from the air inlet nozzle to the air outlet nozzle. The inside of the arc-shaped slider 2 701 is hollow, and rubber sleeves are provided at both ends of the arc-shaped slider 2 701. An air pressure sensor 702 is provided at the middle position of the inside of the arc-shaped slider 2 701. The center points of the cross sections of the single-pass ring tube 5 and the double-pass ring tube 7, the center point of the ventilation rotating ball 8 and the center point of the action rod 9 are on the same vertical axis.

[0039] Solution Description: In conjunction with the first embodiment, it is further explained that the airflow reversing efficiency achieved by only using the action motor 6 to change the rotation of the ventilation ball 8 is relatively slow. This is manifested in that it takes a certain amount of time for the ventilation ball 8 to return to the blocked state. During this period, due to the high pressure difference, part of the gas flows back into the piston pump 3. For example:

[0040] If the inflation volume in a single inflation action is Q1, but when the ventilation ball 8 is reset to the blocked state, the gas stored in the volume Q2 flows back into the ventilation tube due to the high pressure difference, then if the gas stored in the volume Q3 needs to be filled, theoretically Q3 / Q2 inflation actions are required. However, due to the problem of gas backflow consumption, the actual number of inflation actions is greater than Q3 / Q2 times.

[0041] In this embodiment, a single-pass ring pipe 5 and a double-pass ring pipe 7 are added to the vent pipe 301 based on the action motor 6. Figure 6 For example, the vent pipe 301 serves as an exhaust channel in the piston pump 3, and the interior of the single-pass annular tube 5 is not connected to the interior of the piston pump 3. Therefore, after the vent ball 8 completely blocks the vent pipe 301, due to the high pressure difference, the arc-shaped slider 503 will be driven to slide counterclockwise in the single-pass annular tube 5. When the arc-shaped slider 503 rotates counterclockwise, it will also indirectly drive the vent ball 8 to rotate counterclockwise, so that the high pressure difference can be used as "power" to further accelerate the process of resetting the vent ball 8 and blocking the vent pipe 301.

[0042] Example 3: Based on the double-pass annular tube in Example 2, the overall airflow reversing process is supplemented:

[0043] Solution Description: Combined Figure 6The technical content in Example 2 is further explained: when the piston pump 3 switches from the exhaust action to the suction action, the motor 6 is first required to drive the ventilation ball 8 to rotate, and the arc-shaped slider 503 therein will also rotate counterclockwise, then the arc-shaped slider 2 701 in the double-pass annular tube 7 will also rotate counterclockwise, because the contact chamber 502 in the single-pass annular tube 5 is subjected to a high pressure difference, and the interior of the dynamic chamber 501 is in a relatively connected state, so when the arc-shaped slider 1 503 rotates counterclockwise, the ambient pressure inside the dynamic chamber 501 is in a continuously rising state. Figure 7 To explain:

[0044] It is necessary to ensure that the interior of the dynamic chamber 501 is connected to the interior of the actuating rod 9. The essence of this is that during the sliding process of the arc-shaped slider 503, the gas in the dynamic chamber 501 is squeezed into the actuating rod 9, which will drive the rubber cover 10 to continue to expand. The key purpose is to further block the vent in the vent ball 8 through the rubber cover 10, thereby reducing the amount of gas backflow due to the high pressure difference.

[0045] On the other hand, when the piston pump 3 is performing the exhaust action, on the one hand, the ventilation ball 8 is driven to rotate by the action motor 6 to ensure that the interior of the vent pipe 301 is in a connected state. On the other hand, because the arc-shaped slider 1 503 and the rotation of the ventilation ball 8 are performed synchronously, and the gas sucked by the piston pump 3 also generates pressure on the outside of the rubber sheath 10, the rubber sheath 10 no longer blocks the vent hole, and the ventilation state inside the vent pipe 301 is restored. The gas in the rubber sheath 10 will flow back into the dynamic chamber 501. The key purpose is: at the moment of switching between the suction action and the exhaust action, the high pressure difference is used to drive the arc-shaped slider 1 503 to rotate in the opposite direction, and the pressure change in the dynamic chamber 501 further causes the rubber sheath 10 to expand rapidly and further block the vent hole.

[0046] It is important to note that the double-pass ring tube 7 is connected to the interior of the vent tube 301 at both ends thereof. Figure 6 For example, the left side of the double-pass ring tube 7 corresponding to the arc-shaped slider 2 701 is connected to the inside of the piston pump 3 and is set as a positive pressure chamber, whereas the other side is connected to the air outlet and is set as a negative pressure chamber. When the ventilation ball 8 rotates counterclockwise, the internal pressure of the negative pressure chamber is greater than the pressure of the positive pressure chamber, which drives the arc-shaped slider 2 701 to slide clockwise. However, because the arc-shaped slider 2 701 and the arc-shaped slider 1 503 rotate synchronously, the arc-shaped slider 2 701 cannot rotate clockwise. Therefore, the double-pass ring tube 7 does not serve as a quick reaction component and does not play a key role in the process of quickly blocking the vent. Its main functions are:

[0047] Whether the piston pump 3 is performing suction or exhaust, because the two ends of the arc-shaped slider 701 are provided with rubber sleeves and the interior thereof is hollow, the two ends of the arc-shaped slider 701 are subjected to the pressure changes in the positive pressure chamber and the negative pressure chamber and generate a certain value of pressure. Figure 6 To explain:

[0048] An air pressure sensor 702 is fixedly mounted inside the second arc-shaped slider 701. The air pressure sensor 702 is essentially an air pressure sensor that is primarily used to detect the ambient pressure at the corresponding ends of the air pressure sensor 702 inside the second arc-shaped slider 701, and indirectly provides feedback on the ambient pressure changes in the positive pressure chamber and the negative pressure chamber. Specifically, the suction action of the piston pump is indirectly controlled based on the ambient pressure changes in the negative pressure chamber. The reasons for this are:

[0049] Taking tire inflation as an example, during the continuous inflation action, the internal environmental pressure of the tire continues to rise. If the piston pump 3 performs the suction action at a constant power, the internal environmental pressure of the tire will be greater than or close to the high-pressure environment generated by the piston pump 3 due to the suction action, making the exhaust action difficult to perform, and even causing the internal gas of the tire to flow back.

[0050] In summary: based on the suction / exhaust action of the piston pump, the ventilation pipe in the exhaust action is improved. The ventilation ball is used as the basis. The rotation of the ventilation ball changes the connection / blocking state inside the ventilation pipe. On this basis, improvement schemes for single-pass ring pipes and double-pass ring pipes are proposed. Both are equipped with arc-shaped sliders. When the ventilation ball is switched to block the ventilation pipe, the arc-shaped slider in the single-pass ring pipe uses the high pressure difference as "power" to accelerate the ventilation ball to restore the blocking action, and further utilizes the process of the arc-shaped slider affecting the ambient pressure in the dynamic chamber when sliding, and uses the rubber sleeve arranged inside the vent to further accelerate the blocking, and uses a high-responsiveness action mode to avoid reducing the inflation efficiency due to the high pressure difference. Secondly, the double-pass ring pipe is used to indirectly control the inflation / exhaust action.

[0051] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A quick-response reversing assembly for use in a portable inflatable device, comprising an outer shell (1) and a filter element (2), a piston pump (3) and an electrical assembly (4) arranged inside the outer shell (1), characterized in that: An air inlet nozzle and an air outlet nozzle are respectively provided at both ends of the outer shell (1), and a vent pipe (301) in communication with the air outlet nozzle is provided at the output end of the piston pump (3); The middle section of the vent pipe (301) is provided with a ball head, and a ventilation rotating ball (8) is provided in the inner position of the vent pipe (301) corresponding to the ball head, and a single-pass ring pipe (5) and a double-pass ring pipe (7) are provided on the outer walls of both sides of the vent pipe (301) corresponding to the ventilation rotating ball (8), and an actuating motor (6) corresponding to the ventilation rotating ball (8) is provided on the vent pipe (301); The two ends of the double-pass ring tube (7) and one end of the single-pass ring tube (5) close to the air outlet are connected to the interior of the vent tube (301), the other end of the single-pass ring tube (5) is not connected to the interior of the vent tube (301), and the other end of the single-pass ring tube (5) is closed. The vent ball (8) is located in the middle of the two ends of the single-pass ring tube (5) and the double-pass ring tube (7).

2. The quick-response reversing assembly used in a portable inflatable device according to claim 1, characterized in that: The ventilation rotating ball (8) is provided with a ventilation port corresponding to the interior of the ventilation pipe (301), and an actuating rod (9) is installed at the output end of the actuating motor (6).

3. The quick-response reversing assembly used in a portable inflatable device according to claim 2, characterized in that: The action rod (9) passes through the ball head and is rotationally connected to the ventilation pipe (301), and the action rod (9) is fixedly connected to the ventilation rotating ball (8).

4. The quick-response reversing assembly used in a portable inflatable device according to claim 3, characterized in that: The interior of the actuating rod (9) is hollow, and a rubber cover (10) is installed on the outer wall position of the actuating rod (9) corresponding to the vent, and an air groove is opened on the outer wall position of the actuating rod (9) corresponding to the rubber cover (10).

5. The quick-response reversing assembly used in a portable inflatable device according to claim 4, characterized in that: The single-pass ring tube (5) and the double-pass ring tube (7) are slidably mounted with an arc-shaped slider 1 (503) and an arc-shaped slider 2 (701), respectively. A connecting rod is connected between the arc-shaped slider 1 (503), the arc-shaped slider 2 (701) and the ventilation rotating ball (8). The interior of the single-pass ring tube (5) is respectively configured as a dynamic chamber (501) and a contact chamber (502) through the arc-shaped slider 1 (503).

6. The quick-response reversing assembly used in a portable inflatable device according to claim 5, characterized in that: A hose is connected between the interior of the dynamic chamber (501) and the lower end of the action rod (9), and the dynamic chamber (501) and the contact chamber (502) are arranged along the direction from the air inlet nozzle to the air outlet nozzle.

7. The quick-response reversing assembly used in a portable inflatable device according to claim 5, characterized in that: The interior of the second arc-shaped slider (701) is hollow, and rubber sleeves are provided at both ends of the second arc-shaped slider (701). An air pressure sensor (702) is provided at the middle section of the second arc-shaped slider (701).

8. The quick-response reversing assembly used in a portable inflatable device according to claim 6, characterized in that: The center points of the cross sections of the single-pass annular tube (5) and the double-pass annular tube (7), the center point of the ventilation rotating ball (8), and the center point of the action rod (9) are located on the same vertical axis.

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