A gas pump capable of deflating a gas-filled product to a specified pressure

Abstract

This invention provides an air pump for deflation of inflated products to a specified pressure. The pump includes a pump body with a sealed outlet connected to a pressure chamber. The pressure chamber has an inflation port for connecting to the inlet of the inflated product and a vent port with a pressure relief valve. A pressure detection device is also included to detect the internal pressure of the pressure chamber. A control board is used to set the specified pressure for the inflated product. When the pressure detection device detects that the pressure inside the pressure chamber is lower than the specified pressure, the control board closes the pressure relief valve and operates the pump until the pressure inside the pressure chamber equals the specified pressure. Conversely, when the pressure detection device detects that the pressure inside the pressure chamber is higher than the specified pressure, the control board opens the pressure relief valve until the pressure inside the pressure chamber equals the specified pressure. This air pump effectively manages the internal pressure of inflated products, enabling specified inflation and automatic deflation to a specified pressure, with higher control efficiency.

Description

Technical Field

[0001] This utility model relates to the field of air pump technology, and more particularly to an air pump that can be used to deflate products to a specified pressure. Background Technology

[0002] Existing air pumps typically only inflate products that require inflation or deflation, and cannot effectively manage the internal air pressure of inflated or deflated products (such as tires). For example, when the air pressure of an inflated or deflated product needs to be reduced to a specified pressure, either the user needs to deflate the product based on subjective experience, leading to significant errors, or the product needs to be completely deflated before relying on the air pump to inflate it to the specified pressure. This undoubtedly increases the inflation and deflation time, resulting in low efficiency. Therefore, there is an urgent need for an air pump that can effectively manage the internal air pressure of inflated or deflated products. Utility Model Content

[0003] The purpose of this invention is to provide an air pump that can be used to deflate products to a specified pressure. It can effectively manage the internal pressure of the products, realize the specified inflation and automatic deflation to a specified pressure, and has higher control efficiency.

[0004] The technical solution provided by this utility model is as follows:

[0005] This utility model provides an air pump that can be used to deflate products to a specified pressure, comprising:

[0006] The pump body has a sealed air outlet end connected to a pressure chamber. The pressure chamber is provided with an air inlet. The air inlet is used to connect to the air inlet of the air-filled product. When the air inlet is connected to the air inlet, the interior of the air-filled product is connected to the pressure chamber. The pressure chamber is also provided with a vent, and a pressure relief valve is installed on the vent.

[0007] A pressure detection device is attached to the inner wall of the pressure chamber and is used to detect the internal pressure of the pressure chamber.

[0008] A control board is used to set the specified air pressure of the inflation / deflation product, and the control board is connected to the air pressure detection device, the pump body, and the pressure relief valve.

[0009] When the air pressure detection device detects that the air pressure in the air pressure chamber is less than the specified air pressure, the control board controls the pressure relief valve to close and controls the pump to work until the air pressure in the air pressure chamber equals the specified air pressure; when the air pressure detection device detects that the air pressure in the air pressure chamber is greater than the specified air pressure, the control board controls the pressure relief valve to open until the air pressure in the air pressure chamber equals the specified air pressure.

[0010] This application connects a pneumatic chamber to the pump body, and connects the inflation port of the pneumatic chamber to the air inlet of the pneumatic product, thus enabling communication between the interior of the pneumatic product and the pneumatic chamber. This allows a pressure detection device installed in the pneumatic chamber to monitor the internal pressure of the pneumatic chamber and the pneumatic product in real time. Simultaneously, the pneumatic chamber is equipped with a vent and a pressure relief valve, and a control board allows users to set a specified pressure for the pneumatic product. When the pressure detection device detects that the pressure inside the pneumatic chamber is lower than the specified pressure, the pressure relief valve is closed, and the pump body is operated until the pressure inside the pneumatic chamber equals the specified pressure. When the air pressure detection device detects that the air pressure in the air pressure chamber is greater than the specified air pressure, the pressure relief valve can be opened to release air from the inflated product until the air pressure in the air pressure chamber equals the specified air pressure. This achieves effective management of the internal air pressure of the inflated product, enabling the product to be inflated to the specified air pressure and automatically released to the specified air pressure when the air pressure inside the product is high. This eliminates the need to release air from the product based on the user's subjective experience, or to completely release air from the product first and then refill it to the specified air pressure using an air pump. This greatly saves inflation and deflation time and improves control efficiency.

[0011] In some embodiments, the inflation port is connected to the air inlet of the inflation / deflation product via an inflation nozzle, and the inflation nozzle is detachably connected to the inflation port via a thread.

[0012] By setting an inflation nozzle, the inflation port of the air pressure chamber can be connected to the air inlet of the inflation / deflation product, and it is easy to replace, making it suitable for different inflation / deflation products.

[0013] In some embodiments, the vent is located to the side of the inflation port; or,

[0014] The vent is located on the inflation nozzle and is exposed when the inflation nozzle is connected to the air inlet of the inflation / deflation product.

[0015] In some embodiments, the air pressure detection device is electrically connected to the control board; or,

[0016] Both the air pressure detection device and the control board are equipped with wireless communication modules, and the air pressure detection device and the control board are wirelessly connected.

[0017] In some embodiments, the control board is fixed to the outer wall of the air pressure chamber, and the control board is provided with buttons that can be used by the user to set the specified air pressure of the air-filling and air-discharging product.

[0018] In some embodiments, the control panel is provided with a display screen for displaying the real-time air pressure inside the air pressure chamber and the specified air pressure.

[0019] In some embodiments, a detection plate is also included, on which the air pressure detection device is fixed.

[0020] In some embodiments, the air pressure chamber is further provided with a through hole, and the detection plate is sealed to the through hole by a thread, with the side on which the air pressure detection device is installed facing the interior of the air pressure chamber.

[0021] In some embodiments, it further includes a power supply assembly electrically connected to the control board.

[0022] In some embodiments, the air pressure detection device includes a pressure sensor.

[0023] According to the present invention, an air pump can be used to deflate products to a specified pressure. It can effectively manage the internal pressure of the product, enabling the product to be inflated to a specified pressure and automatically deflate to a specified pressure when the internal pressure is high. This eliminates the need to deflate the product based on the user's subjective experience, or to first completely deflate the product and then inflate it to a specified pressure using the air pump. This greatly saves inflation and deflation time and improves control efficiency. Attached Figure Description

[0024] The preferred embodiments will now be described in a clear and easy-to-understand manner, with reference to the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of this solution.

[0025] Figure 1 This is a schematic diagram of the overall structure of an air pump according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the air pump control according to an embodiment of the present invention.

[0027] The following are labeled in the diagram: Pump body-10, air pressure chamber-20, air inlet-21, air vent-22, pressure relief valve-23, air inlet-24, air pressure detection device-30, control board-40, display screen-41, power supply assembly-42. Detailed Implementation

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0029] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0030] Existing air pumps typically only inflate products that require inflation or deflation, and cannot effectively manage the internal air pressure of inflated or deflated products (such as tires). For example, when the air pressure of an inflated or deflated product needs to be reduced to a specified pressure, either the user needs to deflate the product based on subjective experience, leading to significant errors, or the product needs to be completely deflated before relying on the air pump to inflate it to the specified pressure. This undoubtedly increases the inflation and deflation time, resulting in low efficiency. Therefore, there is an urgent need for an air pump that can effectively manage the internal air pressure of inflated or deflated products. This application, based on the normal structure of an air pump, incorporates a sealed pressure chamber at the air outlet. An inflation port on this chamber connects the inside of the product to the pressure chamber, facilitating the measurement of the internal pressure within the pressure chamber. During normal inflation, the pressure chamber is measured in real-time for precise inflation. When the internal pressure exceeds a specified value, the pressure chamber is released through a vent and a vent valve, allowing for deflation of the product. Simultaneously, pressure sensors and other means are used to monitor the internal pressure of both the pressure chamber and the product in real-time, enabling deflation to the specified pressure. The following detailed description of this solution, in conjunction with the accompanying drawings, further illustrates this approach.

[0031] In one embodiment, refer to the appendix to the specification. Figure 1 and 2This utility model provides an air pump that can be used to deflate products to a specified pressure, including a pump body 10, a pressure chamber 20, a pressure detection device 30, and a control board 40. The outlet end of the pump body 10 is sealed to the pressure chamber 20, which can be cylindrical, elongated, etc., and this application is not limited thereto. The pressure chamber 20 is provided with an air inlet 21, which is used to connect to the air inlet of the product being charged or deflated, and when the air inlet 21 is connected to the air inlet, the interior of the product being charged or deflated is connected to the pressure chamber 20. The pressure chamber 20 is also provided with a vent 22, and a pressure relief valve 23 is installed on the vent 22. The pressure relief valve 23 includes, but is not limited to, components such as solenoid valves that can be used to control the deflation of the product. The pressure relief valve includes, but is not limited to, straight-through, three-way, or pressure relief valves with other numbers of channels. The inflation port 21 is connected to the air inlet of the inflation / deflation product via an inflation nozzle 24. The inflation nozzle 24 can be detachably connected to the inflation port 21 via threaded connection, snap-fit ​​connection, or fixed connection via welding. By setting the inflation nozzle 24, the inflation port 21 of the air pressure chamber 20 can be connected to the air inlet of the inflation / deflation product, and it is easy to replace, making it suitable for different inflation / deflation products.

[0032] The air pressure detection device 30 is attached to the inner wall of the air pressure chamber 20 and is used to detect the internal air pressure of the air pressure chamber 20. The air pressure detection device 30 includes a pressure sensor and can convert the internal air pressure of the air pressure chamber 20 into an electrical signal. The control board 40 is a circuit board and is equipped with input devices, such as buttons, which can be used to set the specified air pressure for charging and discharging products. The control board 40 is connected to the air pressure detection device 30, the pump body 10, and the pressure relief valve 23. This application does not limit the specific connection method between the control board 40 and the air pressure detection device 30, the pump body 10, and the pressure relief valve 23. For example, the air pressure detection device 30 can be electrically connected to the control board 40; or, both the air pressure detection device 30 and the control board 40 can be equipped with wireless communication modules, and the air pressure detection device 30 and the control board 40 can be wirelessly connected.

[0033] When the air pressure detection device 30 detects that the air pressure in the air pressure chamber 10 is less than the specified air pressure, the control board 40 controls the pressure relief valve 23 to close and controls the pump body 10 to work until the air pressure in the air pressure chamber 20 equals the specified air pressure; when the air pressure detection device 20 detects that the air pressure in the air pressure chamber 10 is greater than the specified air pressure, the control board 40 controls the pressure relief valve 23 to open until the air pressure in the air pressure chamber 10 equals the specified air pressure.

[0034] This application connects a pneumatic chamber to the pump body, and connects the inflation port of the pneumatic chamber to the air inlet of the pneumatic product, thus enabling communication between the interior of the pneumatic product and the pneumatic chamber. This allows a pressure detection device installed in the pneumatic chamber to monitor the internal pressure of the pneumatic chamber and the pneumatic product in real time. Simultaneously, the pneumatic chamber is equipped with a vent and a pressure relief valve, and a control board allows users to set a specified pressure for the pneumatic product. When the pressure detection device detects that the pressure inside the pneumatic chamber is lower than the specified pressure, the pressure relief valve is closed, and the pump body is operated until the pressure inside the pneumatic chamber equals the specified pressure. When the air pressure detection device detects that the air pressure in the air pressure chamber is greater than the specified air pressure, the pressure relief valve can be opened to release air from the inflated product until the air pressure in the air pressure chamber equals the specified air pressure. This achieves effective management of the internal air pressure of the inflated product, enabling the product to be inflated to the specified air pressure and automatically released to the specified air pressure when the air pressure inside the product is high. This eliminates the need to release air from the product based on the user's subjective experience, or to completely release air from the product first and then refill it to the specified air pressure using an air pump. This greatly saves inflation and deflation time and improves control efficiency.

[0035] This application does not limit the specific location of the vent 22. In one specific implementation, the vent 22 can be located on the side of the inflation port 21. In another specific implementation, the vent 22 can also be located on the inflation nozzle 24. However, in order to ensure normal venting, the vent 22 must be exposed when the inflation nozzle 24 is connected to the air inlet of the inflation / deflation product.

[0036] To facilitate user operation, the control board 40 can be fixed to the outer wall of the air pressure chamber 20, and the control board 40 is equipped with buttons, which allows users to directly set the specified air pressure of the inflation / deflation product, and can be adjusted at any time as needed.

[0037] The control panel 40 may also be equipped with a display screen 41, which is used to display the real-time air pressure in the air pressure chamber 20 and the specified air pressure set by the user.

[0038] In some specific implementations, in order to facilitate the installation of the air pressure detection device 30, a detection plate can also be set, the air pressure detection device 30 is fixed on the detection plate, and the air pressure cavity 20 is also provided with a through hole. The detection plate is sealed to the through hole by means of threads, etc., and the side on which the air pressure detection device 30 is installed faces the inside of the air pressure cavity 20, thereby facilitating the installation and replacement of the air pressure detection device 30.

[0039] In some specific implementations, a power supply component 42, such as a battery, can be provided to facilitate the operation of the control board 40. The power supply component 42 is electrically connected to the control board 40.

[0040] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An air pump that can be used to deflate a product to a specified pressure, characterized in that, include: The pump body has a sealed air outlet end connected to a pressure chamber. The pressure chamber is provided with an air inlet. The air inlet is used to connect to the air inlet of the air-filled product. When the air inlet is connected to the air inlet, the interior of the air-filled product is connected to the pressure chamber. The pressure chamber is also provided with a vent, and a pressure relief valve is installed on the vent. A pressure detection device is attached to the inner wall of the pressure chamber and is used to detect the internal pressure of the pressure chamber. A control board is used to set the specified air pressure of the inflation / deflation product, and the control board is connected to the air pressure detection device, the pump body, and the pressure relief valve. When the air pressure detection device detects that the air pressure in the air pressure chamber is less than the specified air pressure, the control board controls the pressure relief valve to close and controls the pump to work until the air pressure in the air pressure chamber equals the specified air pressure; when the air pressure detection device detects that the air pressure in the air pressure chamber is greater than the specified air pressure, the control board controls the pressure relief valve to open until the air pressure in the air pressure chamber equals the specified air pressure.

2. The air pump according to claim 1, which can be used to deflate a product to a specified pressure, is characterized in that, The inflation port is connected to the air inlet of the inflation / deflation product via an inflation nozzle, and the inflation nozzle is detachably connected to the inflation port via a thread.

3. The air pump according to claim 2, which can be used to deflate a product to a specified pressure, is characterized in that, The vent is located to the side of the inflation port; or, The vent is located on the inflation nozzle and is exposed when the inflation nozzle is connected to the air inlet of the inflation / deflation product.

4. The air pump according to claim 1, which can be used to deflate a product to a specified pressure, is characterized in that, The air pressure detection device is electrically connected to the control board; or... Both the air pressure detection device and the control board are equipped with wireless communication modules, and the air pressure detection device and the control board are wirelessly connected.

5. An air pump according to claim 1, which can be used to deflate a product to a specified pressure, characterized in that, The control board is fixed to the outer wall of the air pressure chamber, and buttons are provided on the control board.

6. An air pump according to claim 1, which can be used to deflate a product to a specified pressure, characterized in that, The control panel is equipped with a display screen, which is used to display the real-time air pressure inside the air pressure chamber and the specified air pressure.

7. An air pump according to claim 1, which can be used to deflate a product to a specified pressure, characterized in that, It also includes a detection plate, on which the air pressure detection device is fixed.

8. An air pump according to claim 7, which can be used to deflate a product to a specified pressure, characterized in that, The air pressure chamber is also provided with a through hole, and the detection plate is connected to the through hole by a thread for sealing, with the side on which the air pressure detection device is installed facing the inside of the air pressure chamber.

9. An air pump according to claim 1, which can be used to deflate a product to a specified pressure, characterized in that, Also includes: A power supply assembly, which is electrically connected to the control board.

10. An air pump according to claim 1, which can be used to deflate a product to a specified pressure, characterized in that, The air pressure detection device includes a pressure sensor.

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