High-pressure inflation device

Abstract

This utility model discloses a high-pressure inflation device, which includes a main body, a control circuit board, an air pump, and a pressure detection device disposed within the main body. The control circuit board is electrically connected to the air pump. The pressure detection device includes a detection seat fixedly disposed within the main body and a detection circuit board mounted on the detection seat. The detection circuit board is electrically connected to the control circuit board and is equipped with a pressure sensor. The detection seat has a connection port and an installation port communicating with the connection port. The connection port communicates with the air pump's outlet chamber through a detection tube. Both ends of the detection tube are sealed to the connection port and the air pump's outlet chamber, respectively. The pressure sensor is inserted into the installation port, and an elastic sealing element is sandwiched between the pressure sensor and the installation port. This utility model can accurately detect inflation pressure.

Description

Technical Field

[0001] This utility model relates to the field of inflation devices, and in particular to a high-pressure inflation device. Background Technology

[0002] Many existing inflation devices are equipped with pressure detection units to monitor inflation pressure. When the inflation pressure reaches a set value, the inflation device stops inflating. However, in existing inflation devices, the pressure sensor in the pressure detection unit is usually directly connected to the air pump through a detection tube. The detection tube and the pressure sensor are plugged into each other, and after long-term use, the connection between the pressure sensor and the detection tube is prone to leakage due to displacement of the pressure sensor, resulting in inaccurate inflation pressure detection.

[0003] In view of the above problems, it is necessary to study a high-pressure inflation device that can accurately detect inflation pressure. Utility Model Content

[0004] The purpose of this invention is to provide a high-pressure inflation device that can accurately detect inflation pressure.

[0005] To achieve the above objectives, the solution of this utility model is:

[0006] A high-pressure inflation device includes a main body, a control circuit board, an air pump, and a pressure detection device disposed within the main body; the control circuit board is electrically connected to the air pump; the pressure detection device includes a detection seat fixedly disposed within the main body and a detection circuit board mounted on the detection seat, the detection circuit board being electrically connected to the control circuit board, and the detection circuit board having a pressure sensor; the detection seat has a connection port and an installation port communicating with the connection port, the connection port communicating with the air outlet chamber of the air pump through a detection tube, the two ends of the detection tube being sealed to the connection port and the air outlet chamber of the air pump respectively, and the pressure sensor being inserted into the installation port with an elastic sealing element sandwiched between the pressure sensor and the installation port.

[0007] The pressure detection device also includes a mounting cover plate, which and the detection circuit board are locked together with the detection seat by screws, and the detection circuit board is sandwiched between the mounting cover plate and the detection seat.

[0008] The elastic seal includes a sealing cylinder housing the pressure sensor and a sealing ring disposed on the outer wall of the sealing cylinder, with the sealing ring abutting against the inner wall of the mounting port.

[0009] The air pump is a piston-type air pump.

[0010] The air pump is equipped with a cooling fan.

[0011] The high-pressure inflation device also includes a power supply battery disposed in the main body and a charging interface disposed on the main body, and the power supply battery and the charging interface are electrically connected to the control circuit board.

[0012] The high-pressure inflation device also includes a light source disposed in the main body, the light source being electrically connected to the control circuit board, and a light-transmitting cover corresponding to the main body.

[0013] The control circuit board is provided with multiple display units; the main body is provided with display clearance holes, which are fitted with display partition covers and display labels. The display partition covers each display unit of the control circuit board and is provided with multiple display holes that are separated. Each display hole is set to the display area of ​​each display unit. The display labels are fitted with the display partition covers and are set to the light-transmitting areas of each display unit.

[0014] The display unit includes at least one LED light.

[0015] The main body has a hollowed-out air intake area; the main body is detachably fitted with an air intake cover and a filter. The air intake cover is hollowed out and covers the air intake area of ​​the main body, while the filter is sandwiched between the main body and the air intake cover.

[0016] With the above solution, the pressure sensor of the detection circuit board of this utility model is inserted into the mounting port of the detection left, and an elastic seal is sandwiched between the pressure sensor and the mounting port. The elastic seal can absorb the vibration of the pressure sensor and prevent the pressure sensor from shifting. The elastic seal can deform according to the pressure sensor to ensure the airtightness between the pressure sensor and the mounting port, thereby preventing air leakage from the pressure sensor and enabling the pressure sensor to accurately detect the inflation pressure. Attached Figure Description

[0017] Figure 1 This is an exploded view of the structure of this utility model.

[0018] Figure 2 for Figure 1 Enlarged view of point a.

[0019] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0020] Figure 4 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0021] Figure 5 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0022] Figure 6 A cross-sectional view of this utility model Figure 1 .

[0023] Figure 7 A cross-sectional view of this utility model Figure 2 .

[0024] Label Explanation:

[0025] Body A, light-transmitting cover A1, button clearance hole A2, display clearance hole A3, air intake area A4, hook A5

[0026] Control circuit board B, button assembly B1, display unit B2

[0027] Air pump C, cooling fan C1, air outlet C2, shock-absorbing pad C21

[0028] Pressure detection device D, detection seat D1, connection port D11, mounting port D12, detection circuit board D2, pressure sensor D21, detection tube D3, elastic seal D4, sealing cylinder D41, sealing ring D42, mounting cover D5.

[0029] Fixed seat E, elastic pad E1,

[0030] Power supply battery F,

[0031] Charging port G,

[0032] Light source H,

[0033] Button sticker I,

[0034] Display partition J, display hole J1

[0035] Display label K, light-transmitting area K1

[0036] Translucent protective film L,

[0037] Air intake hood M,

[0038] Filter element N,

[0039] Anti-slip mat P,

[0040] Hook Q. Detailed Implementation

[0041] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0042] like Figures 1 to 7As shown, this utility model discloses a high-pressure inflation device, which includes a main body A, a control circuit board B, an air pump C, and a pressure detection device D disposed in the main body A; the control circuit board B is electrically connected to the air pump C; the pressure detection device D includes a detection seat D1 fixedly disposed in the main body A and a detection circuit board D2 mounted on the detection seat D1, the detection circuit board D2 being electrically connected to the control circuit board B, and the detection circuit board D2 being provided with a pressure sensor D21; the detection seat D1 is provided with a connection port D11 and an installation port D12 communicating with the connection port D11, the connection port D11 being connected to the air outlet chamber of the air pump C through a detection tube D3. The two ends of the detection tube D3 are sealed to the connection port D11 and the air outlet chamber of the air pump C, respectively. The pressure sensor D21 is inserted into the mounting port D12, and an elastic seal D4 is sandwiched between the pressure sensor D21 and the mounting port D12. The elastic seal D4 can absorb the vibration of the pressure sensor to prevent the pressure sensor D21 from shifting. The elastic seal D4 can also deform according to the pressure sensor D21 to ensure the airtightness between the pressure sensor D21 and the mounting port D12, thereby preventing air leakage from the pressure sensor D21 and enabling the pressure sensor D21 to accurately detect the inflation pressure.

[0043] In an embodiment of this invention, the pressure detection device D may further include a mounting cover plate D5. The mounting cover plate D5 and the detection circuit board D2 are locked together with the detection seat D1 by screws, and the detection circuit board D2 is sandwiched between the mounting cover plate D5 and the detection seat D1. The mounting cover plate D5 can protect the detection circuit board D2 and prevent it from being bumped. The elastic sealing element D4 includes a sealing cylinder D41 that houses the pressure sensor D21 and a sealing ring D42 disposed on the outer wall of the sealing cylinder D41. The sealing ring D42 abuts against the inner wall of the mounting port D12. This invention, through the sealing cylinder D41 and the sealing ring D42, can ensure a stable sealing fit between the pressure sensor D21 and the mounting port D12.

[0044] In this embodiment of the invention, the air pump C can be a piston-type air pump, which has the advantage of high charging pressure. The air pump C can be equipped with a cooling fan C1. When the air pump C is working, the cooling fan C1 rotates to dissipate heat, effectively reducing the operating temperature of the air pump C and allowing it to work for extended periods. The air pump C can be driven by a dual-axis motor. One output shaft of the dual-axis motor drives the piston of the air pump C to reciprocate, while the other output shaft drives the cooling fan C1. A shock-absorbing pad C21 can be sandwiched between the air outlet C2 of the air pump C and the main body A to reduce the vibration of the air pump C. The air pump C can be fixed in the main body A by a fixing seat E, with an elastic pad E1 sandwiched between the fixing seat E and the main body A to further reduce the vibration of the air pump C.

[0045] In embodiments of this utility model, the high-pressure inflation device may further include a power supply battery F disposed in the main body A and a charging interface G disposed on the main body A. The power supply battery F and the charging interface G are electrically connected to the control circuit board B. The power supply battery F can provide the high-pressure inflation device with the power required for operation. The charging interface G is used to connect to an external power source, so that the external power source can charge the power supply battery F, or the utility model can directly provide the power required for operation through an external power source. The charging interface G may be at least one of a DC interface or a Type-C interface.

[0046] In an embodiment of this utility model, the high-pressure inflation device may further include a light source H disposed in the body A, the light source H being electrically connected to the control circuit board B, and a light-transmitting cover A1 corresponding to the body A; this arrangement enables the high-pressure inflation device of this utility model to have illumination capability.

[0047] In an embodiment of this invention, the control circuit board B may be provided with a button assembly B1 having multiple buttons. The main body A has button clearance holes A2 corresponding to the button assembly B1, and the main body A is fitted with button stickers I that cover each button clearance hole A2. The user can issue commands to the control circuit board B through the button assembly B1 to control whether the air pump C of this invention works, the set inflation pressure for the inflatable product, and whether the light source H works. It should be noted that this invention can preset multiple inflation modes for different inflatable products (such as car tires, bicycle tires, motorcycle tires, and balls). Each inflation mode corresponds to a set inflation pressure, and the user selects different inflation modes through the button assembly B1.

[0048] In an embodiment of this utility model, the control circuit board B may be provided with multiple display units B2, each display unit B2 being used to display different content, such as displaying the power level of the power supply battery F, the set or current inflation pressure, the unit of inflation pressure, and the currently selected inflation mode; while the main body A is provided with a display clearance hole A3, which is fitted with a display partition cover J and a display label K. The display partition cover J covers each display unit B2 of the control circuit board B, and the display partition cover J is provided with multiple partitioned display holes J1, each display hole J1 corresponding to the display area of ​​each display unit B2. The display label K is fitted with the display partition cover J, and the display label K is provided with a light-transmitting area K1 corresponding to the display area of ​​each display unit B2; wherein, the display partition cover J can separate the display areas of each display unit B2, avoiding mutual interference between the display areas of each display unit B2, while the display label K can display the display area of ​​the display unit B2 according to a set pattern; the display unit B2 includes at least one LED light, and this arrangement makes the display unit B2 low cost. In addition, a light-transmitting protective film L can be used on the outside of the main body A to cover the display clearance hole A3, so as to protect the display unit B2, the display partition J and the display label K. The light-transmitting protective film L can be integrated with the button sticker I.

[0049] In embodiments of this utility model, the main body A can be assembled from multiple components, which facilitates the installation of components such as the control circuit board B, air pump C, pressure detection device D, power supply battery F, charging interface G, display partition J, and display label K. Furthermore, the main body A has a hollowed-out air intake area A4 to ensure air intake for the air pump C, and the air intake area A4 can be located at the bottom of the main body A. The main body A is detachably fitted with an air intake cover M and a filter element N. The air intake cover M is hollowed out and covers the air intake area A4 of the main body A. The air intake cover M can be detachably connected to the main body A by snap-fit ​​or screw fastening. The filter element N is sandwiched between the main body A and the air intake cover M, and the filter element N is used to prevent foreign objects from entering the inner cavity of the main body A. The filter element N can be made of sponge. In addition, the bottom of the main body A can be fitted with an anti-slip pad P, allowing the main body A to be placed stably. The main body A can be fitted with a hook Q for hanging the main body A.

[0050] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A high-pressure inflation device, comprising a main body, a control circuit board, an air pump, and a pressure detection device disposed within the main body; the control circuit board is electrically connected to the air pump; characterized in that: The pressure detection device includes a detection seat fixedly installed in the main body and a detection circuit board installed on the detection seat. The detection circuit board is electrically connected to the control circuit board and is equipped with a pressure sensor. The detection seat is provided with a connection port and an installation port communicating with the connection port. The connection port is connected to the air outlet chamber of the air pump through a detection tube. The two ends of the detection tube are respectively sealed to the connection port and the air outlet chamber of the air pump. The pressure sensor is inserted into the installation port and an elastic sealing element is sandwiched between the pressure sensor and the installation port.

2. The high pressure inflator of claim 1 wherein: The pressure detection device also includes a mounting cover plate, which and the detection circuit board are locked together with the detection seat by screws, and the detection circuit board is sandwiched between the mounting cover plate and the detection seat.

3. The high pressure inflator of claim 1 wherein: The elastic seal includes a sealing cylinder housing the pressure sensor and a sealing ring disposed on the outer wall of the sealing cylinder, with the sealing ring abutting against the inner wall of the mounting port.

4. The high pressure inflator of claim 1 wherein: The air pump is a piston-type air pump.

5. The high pressure inflator of claims 1 or 4 wherein: The air pump is equipped with a cooling fan.

6. The high pressure inflator of claim 1 wherein: It also includes a power supply battery installed in the main body and a charging interface installed on the main body, and the power supply battery and the charging interface are electrically connected to the control circuit board.

7. The high pressure inflator of claim 1 wherein: It also includes a light source installed in the main body, which is electrically connected to the control circuit board, and a light-transmitting cover is provided on the main body.

8. The high pressure inflator of claim 1 wherein: The control circuit board is provided with multiple display units; the main body is provided with display clearance holes, which are fitted with display partition covers and display labels. The display partition covers each display unit of the control circuit board and is provided with multiple display holes that are separated. Each display hole is set to the display area of ​​each display unit. The display labels are fitted with the display partition covers and are set to the light-transmitting areas of each display unit.

9. The high pressure inflator of claim 8 wherein: The display unit includes at least one LED light.

10. The high pressure inflator of claim 1 wherein: The main body has a hollowed-out air intake area; the main body is detachably fitted with an air intake cover and a filter. The air intake cover is hollowed out and covers the air intake area of ​​the main body, while the filter is sandwiched between the main body and the air intake cover.

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