Built-in air pump convenient for air supply

Abstract

The utility model belongs to the technical field of air pumps, and particularly relates to a built-in air pump convenient for air supplementation, which comprises a shell, a panel, an air pumping and inflating assembly and a PCBA (printed circuit board assembly) control panel, the air pumping and inflating assembly and the PCBA control panel are arranged in a containing space formed by the shell and the panel, the PCBA control panel is connected with an air pressure sensor, the air pumping and inflating assembly is connected with a stepping motor, and the stepping motor is connected with the panel. An air supply port is formed in the bottom of the shell, and when the air pressure sensor senses that the air pressure in the inflatable product is lower than a set value, the air pumping and inflating assembly starts to act to supply air to the inflatable product. Through the ingenious structural design, when the air pressure sensor senses that the air pressure in the inflatable product is lower than a set value, the air extracting and inflating assembly starts to act to supplement air to the inflatable product. According to the utility model, an additional air supplementing pump is not needed, the purpose of air supplementing can be achieved only by using the air extracting and inflating assembly, and the whole structure is simple, the size is small and the cost is low.

Description

Technical Field

[0001] This utility model belongs to the field of air pump technology, and in particular relates to a built-in air pump that is convenient for replenishing air. Background Technology

[0002] The built-in air pump is a key component of various inflatable products. During use, the built-in air pump is typically placed inside the inflatable product. This pump allows for rapid inflation and deflation, ensuring the product's proper use and storage.

[0003] When some gas leaks from the air mattress, causing insufficient firmness, it is necessary to replenish the air. Current air pumps require a separate replenishment pump on top of the built-in air pump, which not only makes the pump bulky but also increases manufacturing costs.

[0004] In view of this, the present invention aims to provide a convenient built-in air pump for replenishing air. Through ingenious structural design, when the air pressure sensor detects that the air pressure inside the inflatable product is lower than a set value, the air pump component starts to operate and replenish the air in the inflatable product. The present invention does not require an additional air pump; the air pump component alone is sufficient to achieve the purpose of replenishing air. The entire structure is simple, small in size, and low in cost. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a convenient built-in air pump for replenishing air. Through ingenious structural design, when the air pressure sensor detects that the air pressure inside the inflatable product is lower than a set value, the air pump component activates to replenish the air. This invention eliminates the need for an additional air pump; the air pump component alone is sufficient for replenishment. The entire structure is simple, compact, and low-cost.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A convenient built-in air pump includes a housing, a panel, an air pumping / inflating assembly and a PCBA control board disposed in the accommodating space formed by the housing and the panel. The PCBA control board is connected to an air pressure sensor, the air pumping / inflating assembly is connected to a stepper motor, and an air inlet is provided at the bottom of the housing. When the air pressure sensor senses that the air pressure inside the inflatable product is lower than a set value, the air pumping / inflating assembly starts to operate and replenish the air in the inflatable product.

[0008] As an improvement of the built-in air pump for convenient air replenishment in this utility model, the bottom of the outer shell is provided with a first through hole and the panel is provided with a second through hole; when inflating, air enters through the second through hole, passes through the air-inflation assembly, and then enters the inflatable product through the first through hole; when deflating, the gas in the inflatable product enters through the first through hole, passes through the air-inflation assembly, and then exits through the second through hole.

[0009] As an improvement of the built-in air pump for convenient air replenishment in this utility model, the air pumping and filling assembly includes an upper cover, a middle cover, a lower cover, and a base plate arranged sequentially from top to bottom. A motor is installed in the first cavity formed by the upper cover and the middle cover, and a fan driven by the motor is installed in the second cavity formed by the middle cover and the lower cover. A third through hole and a fourth through hole are provided on the base plate. An air hole communicating with the third through hole is provided on the lower cover. A through hole is formed on the middle cover. A first flow channel is formed on one side of the middle cover, and a second flow channel is formed on one side of the lower cover. The first flow channel and the second flow channel communicate to form a gas flow channel for connecting the first cavity and the fourth through hole.

[0010] As an improvement of the built-in air pump for convenient air replenishment in this utility model, the upper cover includes a main body and a protrusion that protrudes upward from the main body. The protrusion is provided with a structure that matches the output shaft of the stepper motor, so that the stepper motor can drive the rotation of the air pumping and filling assembly. The outer surface of the main body is also provided with a paddle, and the end of the PCBA control board is also provided with a button. When the paddle presses down on the button, the built-in air pump is in a sealed state.

[0011] As an improvement to the built-in air pump for convenient air replenishment in this utility model, the PCBA control board is also connected to an air filling button and an air extraction button.

[0012] As an improvement of the built-in air pump for convenient air replenishment in this utility model, a fixing ring is provided around the protrusion, the fixing ring is fixed inside the outer shell, and the fixing ring is located above the main body.

[0013] As an improvement of the built-in air pump for convenient air replenishment in this utility model, the PCBA control board is set on the fixing ring.

[0014] As an improvement of the built-in air pump for convenient air replenishment in this utility model, a circular protrusion is provided at the bottom of the base plate, and a circular boss matching the circular protrusion is provided on the upper bottom surface of the outer shell.

[0015] As an improvement of the built-in air pump for convenient air replenishment in this utility model, a first limiting boss is provided on the first through hole, and a first sealing ring is provided on the first limiting boss.

[0016] As an improvement of the built-in air pump for convenient air replenishment in this utility model, the air replenishment port is provided with a second limiting boss and a sealing valve mounting part. The second limiting boss is provided with a second sealing ring, and the sealing valve mounting part is provided with a sealing valve. A gap is formed between the base plate and the air replenishment port. When replenishing air, the sealing valve is blown open, and the gas enters the inflatable product from the air replenishment port.

[0017] Compared to existing technologies, this invention, through its ingenious structural design, activates an inflation / inflation assembly when the air pressure sensor detects that the air pressure inside the inflatable product is lower than a set value, replenishing the product with air. This invention eliminates the need for an additional air pump; the inflation / inflation assembly alone is sufficient for replenishment. The entire structure is simple, compact, and low-cost.

[0018] Compared to existing technologies, this invention, through its ingenious structural design, places the air inlet and outlet ports of the inflation / inflation assembly on the base plate and cleverly designs the gas flow path, ensuring that the entire air pump can only enter and exit from one direction. This significantly improves the efficiency of inflation and inflation, and ensures that all gas is completely removed from the inflated product. Furthermore, because the inlet and outlet ports are both positioned in the same direction, the gas entering the inflation / inflation assembly creates pressure, thereby increasing the inflation / inflation efficiency. Attached Figure Description

[0019] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model.

[0020] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0021] Figure 3 This is one of the exploded structural diagrams of this utility model.

[0022] Figure 4 This is the second exploded structural diagram of this utility model.

[0023] Figure 5 This is the third exploded structural diagram of this utility model.

[0024] Figure 6 This is the fourth exploded structural diagram of this utility model.

[0025] Figure 7 This is the fifth exploded structural diagram of this utility model. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0029] like Figures 1 to 7 As shown, this utility model provides a convenient built-in air pump for air replenishment, including a housing 1, a panel 2, an air pumping / inflating assembly 3 and a PCBA control board 4 disposed in the accommodating space formed by the housing 1 and the panel 2. The PCBA control board 4 is connected to a pressure sensor 5, and the air pumping / inflating assembly 3 is connected to a stepper motor 6. An air replenishment port 7 is provided at the bottom of the housing 1. When the pressure sensor 5 senses that the air pressure inside the inflatable product is lower than the set value, the air pumping / inflating assembly 3 starts to operate and replenish the air in the inflatable product. In use, the required air pressure value (hereinafter referred to as "replenishment air pressure value") can be set first. When the air pressure value is lower than the set replenishment air pressure value, the PCBA control board 4 sends a signal to the air pumping / inflating assembly 3, causing the air pumping / inflating assembly 3 to start operating, thereby inflating the inflatable product. When the set air pressure value that meets the hardness requirements of the inflatable product (hereinafter referred to as "final air pressure value") is reached, the inflation operation stops. This invention does not require an additional air pump; it only needs to use the air pumping and filling component 3 to achieve the purpose of air replenishment. The whole structure is simple, small in size, and low in cost.

[0030] The bottom of the outer casing 1 is provided with a first through hole 11, and the panel 2 is provided with a second through hole 21. When inflating, air enters through the second through hole 21, passes through the air extraction and inflation component 3, and then enters the inflatable product through the first through hole 11. When deflating, the gas in the inflatable product enters through the first through hole 11, passes through the air extraction and inflation component 3, and then exits through the second through hole 21, thereby realizing deflating and inflation.

[0031] The inflation / deflation assembly 3 includes an upper cover 31, a middle cover 32, a lower cover 33, and a base plate 34 arranged sequentially from top to bottom. A motor 35 is installed in the first cavity formed by the upper cover 31 and the middle cover 32. A fan blade 36 driven by the motor 35 is installed in the second cavity formed by the middle cover 32 and the lower cover 33. A third through hole 341 and a fourth through hole 342 are provided on the base plate 34. An air hole 331 communicating with the third through hole 341 is provided on the lower cover 33. A through hole 321 is formed on the middle cover 32. A first flow channel 322 is formed on one side of the middle cover 32. A second flow channel 332 is formed on one side of the lower cover 33. The first flow channel 322 and the second flow channel 331 communicate to form a gas flow channel for connecting the first cavity and the fourth through hole 342. During inflation or deflation, the motor 35 drives the fan blade 36 to rotate. Gas enters through the third through-hole 341, passes through the air hole 331 into the second cavity, then through the through-hole 321 into the first cavity, and finally exits through the gas flow channel from the fourth through-hole 342. Since the inlet and outlet ports (the third through-hole 341 and the fourth through-hole 342) are both located in the same direction, the gas entering the inflation / deflation assembly 3 forms pressure, thereby increasing the pressure and improving the inflation / deflation efficiency.

[0032] The top cover 31 includes a main body 311 and a protrusion 312 that protrudes upward from the main body 311. The protrusion 312 is provided with a structure 314 that matches the output shaft of the stepper motor 6, so that the stepper motor 6 can drive the rotation of the air pumping assembly 3. The outer surface of the main body 311 is also provided with a paddle 313, and the end of the PCBA control board 4 is also provided with a protruding button 41. When the paddle 313 presses against the protruding button 41, the built-in air pump is in a sealed state. In this embodiment, the stepper motor 6 can rotate clockwise by an angle (e.g., 60°) or counterclockwise by an angle (e.g., 60°), thereby driving the rotation of the entire air pumping assembly 3, so that its third through hole 341 is connected to the first through hole 11 (air pumping state), or its fourth through hole 342 is connected to the first through hole 11 (air pumping state), or neither the third through hole 341 nor the fourth through hole 342 is connected to the first through hole 11.

[0033] PCBA control board 4 is also connected to an inflation button 42 and an air extraction button 43. By pressing the inflation button 42 and the air extraction button 43, the PCBA control board 4 can be given inflation and air extraction signals, which causes the stepper motor 6 to drive the inflation and air extraction assembly 3 to rotate.

[0034] A retaining ring 8 is provided around the protrusion 312. The retaining ring 8 is fixed inside the outer shell 1 and is located above the main body 311. One function of the retaining ring 8 is to prevent the inflation / deflation assembly 3 from moving around, and another function is to press down the sealing ring on the first through hole 11 to prevent air leakage.

[0035] PCBA control board 4 is mounted on fixing ring 8 for easy fixing of PCBA control board 4.

[0036] The bottom of the base plate 34 is also provided with a circular protrusion 343, and the bottom upper surface of the outer shell 1 is provided with a circular boss 12 that matches the circular protrusion 343. The arc surface contact prevents wear.

[0037] A first limiting boss 13 is provided on the first through hole 11, and a first sealing ring 9 is provided on the first limiting boss 13 to prevent air leakage.

[0038] The air inlet 7 is provided with a second limiting boss 71 and a sealing valve mounting part 72. The second limiting boss 71 is provided with a second sealing ring 10, and the sealing valve mounting part 72 is provided with a sealing valve 20. A gap is formed between the bottom plate 34 and the air inlet 7. When air is replenished, the sealing valve 20 is blown open, and the gas enters the inflatable product from the air inlet 7.

[0039] When in use, in the non-working state, the lever 313 presses against the protruding button 41, and the middle area of ​​the third through hole 341 and the fourth through hole 342 presses against the first sealing ring 9, thereby sealing the first through hole 11 and preventing air leakage.

[0040] When it is necessary to switch to the inflation state, press the inflation button 42. The PCBA control board 4 controls the stepper motor 6 to drive the inflation assembly 3 to rotate counterclockwise (or clockwise) by an angle (such as 60°), so that the fourth through hole 342 is connected to the first through hole 11. At this time, the lever 313 moves away from the convex button 41, the motor 35 starts to move, the fan blade 36 starts to rotate, and air enters the housing space of the outer shell 1 from the second through hole 21, then enters the inflation assembly 3 from the third through hole 341, enters the second cavity through the air hole 331, then enters the first cavity through the through hole 321, passes through the gas flow channel, and is discharged from the fourth through hole 342, and enters the inflatable product through the first through hole 11.

[0041] When it is necessary to switch to the air extraction mode, press the air extraction button 43. The PCBA control board 4 controls the stepper motor 6 to drive the air extraction and inflation assembly 3 to rotate clockwise (or counterclockwise) by an angle (such as 60°), so that the third through hole 341 is connected to the first through hole 11. At this time, the lever 313 moves away from the convex button 41, the motor 35 starts to operate, the fan blade 36 starts to rotate, and the air is discharged from the inflatable product. After passing through the first through hole 11 and the third through hole 341, it enters the air extraction and inflation assembly 3, enters the second cavity through the air hole 331, then enters the first cavity through the through hole 321, passes through the gas flow channel, and is discharged from the fourth through hole 342, enters the accommodating space of the outer shell 1, and finally is discharged from the second through hole 21.

[0042] When the air pressure sensor 5 senses that the air pressure value is lower than the set replenishment air pressure value, the stepper motor 6 does not move, the air intake and inflation assembly 3 does not move, the lever 313 presses the protruding button 41, the PCBA control board 4 sends a signal to the air intake and inflation assembly 3, causing the air intake and inflation assembly 3 to start operating, the motor 35 starts operating, the fan blade 36 starts rotating, air enters the accommodating space of the outer shell 1 through the second through hole 21, then enters the air intake and inflation assembly 3 through the third through hole 341, enters the second cavity through the air hole 331, then enters the first cavity through the through hole 321, passes through the gas flow channel, and then exits through the fourth through hole 342, and enters the inflatable product through the first through hole 11, thereby inflating the inflatable product. When the set air pressure value that meets the hardness requirements of the inflatable product (hereinafter referred to as "final air pressure value") is reached, the inflation operation stops.

[0043] Based on the disclosure and teachings of the above specification, those skilled in the art can make appropriate changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A built-in air pump for convenient air replenishment, characterized in that: The device includes a housing, a panel, an inflation / deflation assembly and a PCBA control board disposed within the accommodating space formed by the housing and the panel. The PCBA control board is connected to a pressure sensor, and the inflation / deflation assembly is connected to a stepper motor. An air inlet is provided at the bottom of the housing. When the pressure sensor detects that the air pressure inside the inflatable product is lower than a set value, the inflation / deflation assembly starts to operate and replenishes the air in the inflatable product.

2. The built-in air pump for convenient air replenishment according to claim 1, characterized in that: The bottom of the outer shell is provided with a first through hole, and the panel is provided with a second through hole. When inflating, air enters through the second through hole, passes through the air-inflation assembly, and then enters the inflatable product through the first through hole. When deflating, the gas in the inflatable product enters through the first through hole, passes through the air-inflation assembly, and then exits through the second through hole.

3. The built-in air pump for convenient air replenishment according to claim 1, characterized in that: The inflation / deflation assembly includes an upper cover, a middle cover, a lower cover, and a base plate arranged sequentially from top to bottom. A motor is installed in a first cavity formed by the upper cover and the middle cover. A fan driven by the motor is installed in a second cavity formed by the middle cover and the lower cover. A third through hole and a fourth through hole are provided on the base plate. An air hole communicating with the third through hole is provided on the lower cover. A through hole is formed on the middle cover. A first flow channel is formed on one side of the middle cover. A second flow channel is formed on one side of the lower cover. The first flow channel and the second flow channel communicate to form a gas flow channel connecting the first cavity and the fourth through hole.

4. The built-in air pump for convenient air replenishment according to claim 3, characterized in that: The top cover includes a main body and a protrusion that protrudes upward from the main body. The protrusion is provided with a structure that matches the output shaft of the stepper motor, so that the stepper motor can drive the rotation of the air pumping assembly. The outer surface of the main body is also provided with a paddle, and the end of the PCBA control board is also provided with a button. When the paddle presses down on the button, the built-in air pump is in a sealed state.

5. The built-in air pump for convenient air replenishment according to claim 1, characterized in that: The PCBA control board is also connected to an inflation button and an air extraction button.

6. The built-in air pump for convenient air replenishment according to claim 4, characterized in that: A retaining ring is provided around the protrusion, the retaining ring is fixed inside the outer shell, and the retaining ring is located above the main body.

7. The built-in air pump for convenient air replenishment according to claim 6, characterized in that: The PCBA control board is mounted on the fixing ring.

8. The built-in air pump for convenient air replenishment according to claim 4, characterized in that: The bottom of the base plate is also provided with a circular protrusion, and the bottom upper surface of the outer shell is provided with a circular boss that matches the circular protrusion.

9. The built-in air pump for convenient air replenishment according to claim 2, characterized in that: A first limiting boss is provided on the first through hole, and a first sealing ring is provided on the first limiting boss.

10. The built-in air pump for convenient air replenishment according to claim 4, characterized in that: The air inlet is provided with a second limiting boss and a sealing valve mounting part. The second limiting boss is provided with a second sealing ring, and the sealing valve mounting part is provided with a sealing valve. A gap is formed between the base plate and the air inlet. When air is replenished, the sealing valve is blown open, and the gas enters the inflatable product from the air inlet.

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