External portable air pressure monitoring meter

Abstract

The utility model relates to an external portable air pressure monitoring meter, comprising a housing which is internally provided with a first air chamber; the air pressure monitoring assembly is arranged at the upper port of the first air chamber and is used for measuring the air pressure in the first air chamber; the inserting part is arranged on the lower end face of the shell and used for being inserted into a valve shell of the air valve, and a second air cavity communicated with a lower port of the first air cavity is formed in the inserting part; the abutting rod is arranged on the lower end face of the inserting part and used for opening a valve block on the air valve so as to open a valve port, and the interior of the inflatable product can communicate with the second air cavity. The inserting part is inserted into a valve shell of the air valve, the abutting rod opens a valve plate on the air valve and opens a valve port, and meanwhile the inserting part is inserted into the valve shell and attached to the inner wall of the valve shell, so that air in the inflatable product enters the first air cavity only through the second air cavity. A user only needs to insert the external portable air pressure monitoring meter into the valve shell, and then the air pressure in the first air cavity can be obtained through the air pressure monitoring assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to air pressure monitoring technical field especially relates to a portable air pressure monitoring table of external formula. BACKGROUND

[0002] More large equipment such as inflatable bed, inflatable boat, which is provided with air valve. Such as a application number as 201520486601.8 (announcement number is 204784890U) of Chinese utility model patent discloses a kind of air valve for inflatable product, including valve seat and valve shell, valve shell has with upper air chamber and lower air chamber, upper air chamber and lower air chamber are communicated by valve port, and air valve core assembly is arranged at the position of valve port;Wherein, air valve core assembly includes valve rod, the lower end of valve rod is provided with the valve sheet made of flexible material, the inner wall of valve port is shaped with the connecting rib of cross arrangement, valve rod is movably arranged in the cross connection of connecting rib, and valve sheet is located in lower air chamber, and the valve rod in upper air chamber is provided with blocking piece for blocking the falling of valve rod. The air valve core assembly has the advantages of simple structure and convenient assembly, when inflating, valve sheet is opened under the action of air pressure, gas enters lower air chamber after passing through valve port, and when inflation ends, valve sheet is kept closed valve port tendency under the action of internal air pressure of inflatable equipment, to prevent air leakage.

[0003] To ensure the use effect of inflatable product, user often needs to measure the air pressure in inflatable product to judge whether the inflation amount of inflatable product is sufficient. During inflation, general inflation pump is provided with pressure display, and this problem is solved. But it is inconvenient to detect the internal air pressure of inflatable product during use, so some inflatable products are additionally provided with a pressure display valve, which increases the cost of inflatable product.

[0004] Therefore, how to design a portable air pressure monitoring table of external formula matched with valve port of original air valve is a technical problem to be solved by the person skilled in the art, and the air pressure monitoring table is not needed to be additionally provided with pressure display valve on inflatable product. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem in the prior art, and provides a portable air pressure monitoring table of external formula, which is convenient to operate.

[0006] The utility model discloses a technical scheme that solves the above technical problems: a portable external air pressure monitoring meter is connected with the air valve of an inflatable product and comprises a shell, a first gas chamber arranged in the shell, an air pressure monitoring assembly arranged at the upper end of the first gas chamber and used for measuring the air pressure in the first gas chamber, a plug-in part arranged at the lower end surface of the shell and used for being inserted into the valve shell of the air valve, a second gas chamber arranged in the plug-in part and in communication with the lower end of the first gas chamber, and a lever arranged at the lower end surface of the plug-in part and used for supporting the valve plate of the air valve to open the valve port and make the interior of the inflatable product communicate with the second gas chamber.

[0007] Preferably, the plug-in part is in the shape of a circular truncated cone with a large upper end and a small lower end. The plug-in part is large at the upper end and small at the lower end, which facilitates the matching of the plug-in part with the structure of the existing valve shell and facilitates the plugging and unplugging between the plug-in part and the valve shell.

[0008] In order to simplify the structure, the second gas chamber in the plug-in part is through from top to bottom, and the lever extends downward from the annular surface at the lower end of the plug-in part. In the state that the lever supports the valve plate of the air valve, the interior of the inflatable product communicates with the second gas chamber and the first gas chamber. The upper end of the second gas chamber communicates with the lower end of the first gas chamber. After the lever supports the valve plate of the air valve, the gas in the interior of the inflatable product can enter the first gas chamber through the second gas chamber.

[0009] In order to facilitate the pulling of the plug-in part out of the valve shell, the lever is provided with two symmetrically arranged levers on the annular surface at the lower end of the plug-in part. Because the two levers are symmetrically arranged, the reaction force received by the entire portable external air pressure monitoring meter in the vertical direction is balanced, and the side wall of the plug-in part is not too close to the inner wall of the valve shell, so that the plug-in part is not easy to be pulled out.

[0010] Preferably, the shell has a mounting cavity with an opening upward, and a gas flow channel extending upward is arranged on the bottom wall of the mounting cavity. The gas flow channel divides the mounting cavity into an inner cavity and an outer cavity, and the inner cavity is the first gas chamber. By using the above scheme, the volume of the gas in the first gas chamber is reduced, and the adverse effects of oxygen and water vapor in the first gas chamber on the air pressure monitoring assembly can be reduced.

[0011] In order to facilitate the measurement of air pressure, the air pressure monitoring assembly comprises a circuit board, which is arranged transversely above the gas flow pipe; a sensor, which is arranged on the lower end surface of the circuit board and faces the first gas chamber and is used for measuring the air pressure in the first gas chamber; a display screen, which is arranged on the upper end surface of the circuit board and is used for displaying the air pressure value; and a micro switch, which is arranged on the upper end surface of the circuit board and is used for controlling the opening and closing of the display screen. In the above scheme, the display screen can more directly display the air pressure value of the inflatable product; when the user needs to measure the air pressure, the user only needs to touch the micro switch to light up the display screen, so that the display screen displays the air pressure value.

[0012] Preferably, the air pressure monitoring assembly further comprises a battery, which is arranged below the circuit board and is accommodated in the outer cavity. The outer cavity can provide a more stable storage environment for the battery.

[0013] In order to protect the air pressure monitoring assembly, the external portable air pressure monitoring meter further comprises a watch cover fixedly connected with the opening of the shell, the watch cover is provided with a mounting hole corresponding to the position of the micro switch, and a button for pressing the micro switch is arranged in the mounting hole.

[0014] In order to facilitate the fixation of the air pressure monitoring assembly, an upwardly extending boss is arranged on the bottom wall of the outer cavity, a first connecting hole extending vertically is arranged in the boss, a second connecting hole is correspondingly arranged on the circuit board, and a screw passes through the first connecting hole and the second connecting hole to connect the circuit board to the boss. In the above scheme, the circuit board and the shell are connected by screws, which is simple and firm.

[0015] In order to avoid air leakage of the first gas chamber, a sealing gasket is further arranged between the upper end surface of the gas flow pipe and the circuit board.

[0016] Compared with the prior art, the external portable air pressure monitoring meter can be directly inserted into the valve shell of the air valve, the abutment rod can support the valve plate on the air valve and open the valve port, the plug-in part can be inserted into the valve shell and attached to the inner wall of the valve shell, so that the gas in the inflatable product only enters the first gas chamber through the second gas chamber and cannot be leaked out; the user only needs to insert the external portable air pressure monitoring meter into the valve shell, and then the air pressure in the first gas chamber (i.e. in the inflatable product) can be obtained through the air pressure monitoring assembly, which is plug-and-play and convenient and fast to operate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic view of an external portable air pressure monitoring meter according to the present application;

[0018] Figure 2 FIG. 2 is a structural schematic view of the air pressure monitoring assembly of the external portable air pressure monitoring meter according to the present application; Figure 1The exploded view of the external portable air pressure monitoring table;

[0019] Figure 3 For Figure 1 The cross-sectional view of the external portable air pressure monitoring table;

[0020] Figure 4 For Figure 1 The structural schematic diagram of the external portable air pressure monitoring table after removing the cover and the air pressure monitoring assembly;

[0021] Figure 5 For Figure 2 The structural schematic diagram of the air pressure monitoring assembly. DETAILED DESCRIPTION

[0022] The utility model will be described further in detail below in combination with the drawings.

[0023] As Figures 1 to 5 shown in the preferred embodiment of the utility model, the external portable air pressure monitoring table is inserted into the air valve of the inflatable product for use, and the specific air valve structure can refer to the Chinese utility model patent with the application number 201520486601.8 (publication number 204784890U).

[0024] As Figure 2 , 3 shown, the external portable air pressure monitoring table comprises a shell 1, an air pressure monitoring assembly 2, a plug-in part 3 and a stopper 4, the plug-in part 3 is plugged into the air valve, the stopper 4 props open the valve piece on the air valve to open the valve port so that the internal gas of the inflatable product enters the shell 1, and the air pressure monitoring assembly 2 arranged on the shell 1 can measure the air pressure of the inflatable product.

[0025] As Figures 2 to 4 shown, the shell 1 has an installation cavity with an opening upward, and a gas flow channel 11 extending upward and penetrating up and down is arranged on the bottom wall of the installation cavity, the gas flow channel 11 divides the installation cavity into an inner cavity and an outer cavity 11b, and the inner cavity is a first gas chamber 11a.

[0026] The plug-in part 3 extends downward from the lower end surface of the shell 1, the plug-in part 3 has a circular truncated cone structure with a large upper end and a small lower end, and a second gas chamber 3a penetrating up and down is arranged in the plug-in part 3, the upper port of the second gas chamber 3a communicates with the lower port of the first gas chamber 11a, and the lower port of the second gas chamber 3a is on the lower end surface of the plug-in part 3.

[0027] In this embodiment, the abutting rods 4 are provided with two, and the abutting rods 4 are symmetrically arranged on the annular surface of the lower end of the plug-in part 3. Two abutting rods simultaneously support the valve plate on the gas valve. Because the two abutting rods are symmetrically arranged, the reaction force in the vertical direction of the entire external portable air pressure monitoring gauge is balanced, and the side outer wall of the plug-in part 3 is not too close to the inner wall of the valve shell, so that the plug-in part 3 is not easy to pull out.

[0028] As shown in Figure 2 , 5 , the air pressure monitoring assembly 2 includes a circuit board 21, a sensor 22, a display screen 23, a micro switch 24 and a battery 25. The circuit board 21 is fixed horizontally above the gas flow pipeline 11; the upper end surface of the circuit board 21 is provided with the display screen 23 and the micro switch 24, the display screen 23 is used to display the air pressure value, and the micro switch 24 is used to control the opening and closing of the display screen 23; the lower end surface of the circuit board 21 is provided with the sensor 22 and the battery 25, the sensor 22 is opposite to the first gas chamber 11a and is used to measure the air pressure in the first gas chamber 11a, and the battery 25 is accommodated in the outer cavity 11b.

[0029] In order to fix the air pressure monitoring assembly 2 on the shell 1, two bosses 12 extending upward are arranged on the bottom wall of the outer cavity 11b, the outer side walls of the two bosses 12 are in contact with the outer side walls of the gas flow pipeline 11, the upper end surfaces of the two bosses 12 are provided with first connecting holes 121 extending downward, and the second connecting holes 211 corresponding to the positions of the first connecting holes 121 are arranged on the circuit board 21. The screws pass through the first connecting holes 121 and the second connecting holes 211 to connect the circuit board 21 to the bosses 12. In addition, in order to prevent the upper port of the first gas chamber 11a from leaking, a sealing gasket 6 is arranged between the upper end surface of the gas flow pipeline 11 and the circuit board 21. The sealing gasket 6 covers the upper end surface of the gas flow pipeline 11 and the upper end surface of the boss 12 as a whole, and the sealing gasket 6 is provided with a first through hole 61 corresponding to the upper port of the gas flow pipeline 11 and a second through hole 62 corresponding to the first connecting hole 121.

[0030] As shown in Figure 3 , the external portable air pressure monitoring gauge further includes a cover 5 fixedly connected with the opening of the shell 1, and the opening of the shell 1 is provided with a connecting ring 13 extending horizontally outward, and the cover 5 is welded with the connecting ring 13. The cover 5 is provided with a mounting hole 51 corresponding to the position of the micro switch 24, and a button 52 for pressing the micro switch 24 is mounted in the mounting hole 51.

[0031] The use process of the external portable gas pressure monitoring meter of the embodiment is as follows: the valve cover of the gas valve is opened, the external portable gas pressure monitoring meter is plugged into the gas valve, at this time the plug-in part 3 is located in the valve shell of the gas valve, the lever 4 props open the valve piece on the gas valve to open the valve port so that the internal gas of the inflating product enters the second gas chamber 3a and the first gas chamber 11a in turn; the button 52 on the meter cover 5 is pressed, and then the display screen 23 is opened through the micro switch 24, and the display screen 23 can display the gas pressure of the first gas chamber 11a measured by the inductor 22.

Claims

1. An external portable air pressure monitoring gauge, used in conjunction with the air valve on an inflatable product, characterized in that, include The housing (1) has a first gas chamber (11a) inside it; A pressure monitoring component (2) is installed at the upper port of the first gas chamber (11a) and is used to measure the pressure inside the first gas chamber (11a); The plug-in part (3) is provided on the lower end face of the housing (1) and is used to be inserted into the valve housing of the gas valve. The plug-in part (3) is provided with a second gas chamber (3a) that communicates with the lower port of the first gas chamber (11a). A stop bar (4) is provided on the lower end face of the plug (3) and is used to open the valve plate on the air valve so as to open the valve port and make the interior of the inflatable product communicate with the second gas chamber (3a).

2. The external portable barometer according to claim 1, characterized in that: The plug-in part (3) is a frustum-shaped part with a larger upper end and a smaller lower end.

3. The external portable barometer according to claim 1, characterized in that: The second gas chamber (3a) in the plug part (3) is vertically connected, and the abutment (4) extends downward from the annular surface at the lower end of the plug part (3). When the abutment (4) opens the valve plate on the gas valve, the interior of the inflatable product is connected to the second gas chamber (3a) and the first gas chamber (11a).

4. The external portable barometer according to claim 3, characterized in that: Two abutment rods (4) are provided, and the abutment rods (4) are symmetrically arranged on the annular surface at the lower end of the insertion part (3).

5. The external portable barometer according to any one of claims 1 to 4, characterized in that: The housing (1) has an upward-opening mounting cavity, and an upward-extending gas flow pipe (11) is provided on the bottom wall of the mounting cavity. The gas flow pipe (11) divides the mounting cavity into an inner cavity and an outer cavity (11b), and the inner cavity is the aforementioned first gas chamber (11a).

6. The external portable barometer according to claim 5, characterized in that: The air pressure monitoring component (2) includes The circuit board (21) is horizontally positioned above the gas flow pipe (11); A sensor (22) is disposed on the lower end face of the circuit board (21), and the sensor (22) is facing the first gas chamber (11a) and is used to measure the gas pressure in the first gas chamber (11a); A display screen (23) is disposed on the upper surface of the circuit board (21) for displaying air pressure values; A micro switch (24) is disposed on the upper surface of the circuit board (21) and is used to control the opening and closing of the display screen (23).

7. The external portable barometer according to claim 6, characterized in that: The air pressure monitoring component (2) also includes a battery (25) disposed below the circuit board (21) and housed within the outer cavity (11b).

8. The external portable barometer according to claim 6, characterized in that: It also includes a watch cover (5) fixedly connected to the opening of the housing (1). The watch cover (5) has a mounting hole (51) at the position corresponding to the micro switch (24). A button (52) that can press the micro switch (24) is installed in the mounting hole (51).

9. The external portable barometer according to claim 8, characterized in that: An upwardly extending boss (12) is provided on the bottom wall of the outer cavity (11b). A vertically extending first connecting hole (121) is provided inside the boss (12). A corresponding second connecting hole (211) is provided on the circuit board (21). Screws pass through the first connecting hole (121) and the second connecting hole (211) to connect the circuit board (21) to the boss (12).

10. The external portable barometer according to claim 9, characterized in that: A sealing gasket (6) is also provided between the upper end face of the gas flow pipe (11) and the circuit board (21).

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