Digital display pressure gauge for inflatable product

Abstract

A digital display pressure gauge for an inflatable product comprises a gauge cover of the pressure gauge and a valve casing of an inflation valve, an upper air chamber and a lower air chamber are arranged in the valve casing and communicated with each other through a valve port, and the gauge cover can cover the upper end of the upper air chamber. The circuit board is located in the upper air chamber, the circuit board is provided with a display screen used for displaying the air pressure value and a microswitch used for controlling the display screen to be turned on and turned off, the meter cover is provided with a button capable of triggering the microswitch, the button is in a natural state, and the upper surface of the button is flush with the upper surface of the meter cover. The air pressure meter has the advantages that a user can touch the microswitch on the circuit board by pressing the button on the meter cover, so that the display screen displays the air pressure value of the inflatable product, the operation of measuring the air pressure value of the inflatable product is more convenient, and the display is more visual.

Description

TECHNICAL FIELD

[0001] The utility model relates to air pump technical field especially relates to a digital pressure gauge for inflatable product. BACKGROUND

[0002] Inflatable products such as surfboard, inflatable boat, inflatable swimming pool and other products are provided with inflation valve, inflation valve and inflatable product are sealed connection, inflation valve in prior art such as patent application number CN202020974374.4 (authorization announcement number CN212389809U) of China utility model "a kind of inflation valve" as shown, inflation valve includes valve body and valve cover, inner shell and outer shell are arranged in valve body, inflation chamber and inflation valve port are arranged in inner shell, working chamber is arranged in outer shell, inflation chamber and working chamber are communicated by inflation valve port, one-way valve core assembly is arranged at inflation valve port, the size of this inflation valve is smaller, the effect of application on inflatable product is better.

[0003] Although inflatable product can be inflated using the above-mentioned inflation valve, the user often needs to measure the air pressure in the inflatable product to determine whether the inflation amount of the inflatable product is sufficient, if the above-mentioned inflation valve is used to measure the air pressure in the inflatable product, the valve cover of the inflation valve needs to be opened, and then the pressure gauge is connected to the valve body of the inflation valve for measurement, which is relatively complex to operate and inconvenient to measure pressure, and the air pressure in the inflatable product cannot be directly observed. Therefore, further improvement is needed for the digital pressure gauge for inflatable products. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a digital pressure gauge with reasonable structure and direct display of air pressure of inflatable product according to the above-mentioned prior art status.

[0005] The utility model adopts the technical scheme that the digital pressure gauge for inflatable product, including the table cover of pressure gauge and the valve shell of inflation valve, the valve shell has upper air chamber and lower air chamber, upper air chamber and lower air chamber are communicated with each other through valve port, the upper end of upper air chamber can be covered by table cover, characterized by: the circuit board for measuring air pressure is arranged below table cover, the circuit board is located in upper air chamber, the display screen for displaying air pressure value and micro switch for controlling display screen opening and closing are arranged on circuit board, the button for triggering micro switch is arranged on table cover, the button is in natural state, the upper surface of button is flush with the upper surface of table cover.

[0006] Preferably, the valve shell includes an inner shell and an outer shell, the inner shell is threadedly connected in the recess cavity of the outer shell, the upper air chamber is arranged in the inner shell, the lower air chamber is arranged in the recess cavity of the outer shell, and the valve port is arranged at the communication between the inner shell and the recess cavity of the outer shell. The inner shell and the outer shell cooperate to form the upper air chamber and the lower air chamber in the valve shell, thereby optimizing the structure of the valve shell.

[0007] In order to make the digital pressure gauge stable installation on the inflation valve, preferably, the cover is welded to the upper end of the inner shell, and the circuit board is packaged in the upper air chamber of the inner shell. The cover is in sealed connection with the inner shell, so that the circuit board can be waterproof in the inner shell, and the digital pressure gauge is not affected by water.

[0008] Further, the circuit board further comprises a battery, and the battery is packaged in the upper air chamber of the inner shell, and the battery supplies power to the circuit board. The battery of the circuit board is packaged in the inner shell, so that the battery cannot be taken out and can always supply power to the circuit board.

[0009] In order to facilitate the sealing connection between the inflation valve with the digital pressure gauge and the inflation product, preferably, the outer peripheral wall of the valve shell is sleeved with a lower shell, the lower shell is provided with a through hole in communication with the lower air chamber of the valve shell, and the outer peripheral wall of the lower shell horizontally extends to form an annular fusion edge, which is used for connecting and sealing the lower shell with the inflation product. The electronic sensor on the circuit board can detect the air pressure in the inflation product through the valve port, the lower air chamber and the through hole.

[0010] In order to avoid impurities in the inflation product from entering the inflation valve, preferably, a plurality of air holes are arranged on the peripheral wall of the valve shell, and the outer peripheral wall of the valve shell is sleeved with a filter cover, the filter cover comprises a frame and a filter screen with mesh, and the filter screen is embedded on the peripheral wall and the bottom of the frame, so that the air holes are blocked by the filter screen. The filter screen of the filter cover can prevent impurities from entering the inflation valve through the air holes, and the frame provides support for the filter screen, so that the filter screen can cover the air holes of the valve shell.

[0011] In order to optimize the layout of the circuit board in the valve shell, preferably, the bottom of the upper air chamber is provided with a boss extending upward for the circuit board to rest on, the circuit board is fixedly connected with the boss, the boss is provided with a connecting hole for introducing external pressure, the lower end of the connecting hole is a valve port, and the electronic sensor of the circuit board is located in the connecting hole. The circuit board can be fixed on the boss first, and then the cover is installed on the circuit board, so that the cover and the valve shell are installed, the structure of the digital pressure gauge is compact, the digital pressure gauge is convenient to install in the inflation valve, and the electronic sensor of the circuit board is located in the connecting hole, which is in communication with the inflation product through the valve port, the lower air chamber, the through hole or the air hole, so as to measure the air pressure of the inflation product.

[0012] Further, the boss is provided with two screw holes, the circuit board is provided with mounting holes corresponding to the screw holes, and the circuit board is fixedly connected with the boss by screwing the screw through the mounting holes and the screw holes. The circuit board and the boss are fixedly connected by screws.

[0013] Compared with the prior art, the advantages of this utility model are as follows: The digital pressure gauge is installed on the upper end of the valve body, and the cover of the digital pressure gauge is used as the valve cover of the valve body, making the structure of the inflation valve with the digital pressure gauge more compact. The digital pressure gauge can more intuitively display the air pressure value of the inflated product through the display screen. Furthermore, when the button is in the natural state, the micro switch is in the off state, and the display screen is off in the standby state. When the user uses the digital pressure gauge, they only need to press the button on the cover to activate the micro switch, which will light up the display screen in the standby state, thus displaying the air pressure value. The operation of measuring the air pressure of inflated products is simple and convenient for users to measure the air pressure value of inflated products. After displaying for a period of time, the display screen will automatically turn off, thereby extending the service life of the digital pressure gauge. In addition, the upper surface of the button is flush with the upper surface of the cover when in the natural state, making the digital pressure gauge more aesthetically pleasing and easier for users to press the button. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0015] Fig. 2 This is an exploded view of Embodiment 1 of the present invention;

[0016] Fig. 3 This is a cross-sectional view of Embodiment 1 of the present utility model;

[0017] Fig. 4 This is a cross-sectional view of Embodiment 1 of the present invention from another perspective;

[0018] Fig. 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0019] Fig. 6 This is an exploded view of Embodiment 2 of the present invention. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figs. 1-4 As shown, this is Embodiment 1 of the present invention.

[0022] like Figs. 1-4As shown, the digital pressure gauge for inflatable products in this embodiment includes a gauge cover 1 and a valve housing 2 for an inflation valve. The valve housing 2 has an upper air chamber A and a lower air chamber B, which are interconnected via a valve port C. The valve housing 2 includes an inner shell 22 and an outer shell 23. The inner shell 22 is threaded into a recess in the outer shell 23. The upper air chamber A is located within the inner shell 22, and the lower air chamber B is located within the recess in the outer shell 23. The valve port C is located at the connection point between the inner shell 22 and the recess in the outer shell 23. Furthermore, in this embodiment, a lower shell 5 made of soft plastic is fitted onto the outer peripheral wall of the outer shell 23 of the valve housing 2. The outer shell 23 is made of hard plastic. The lower shell 5 has a through hole 51 communicating with the lower air chamber B of the valve housing 2. The outer peripheral wall of the lower shell 5 extends horizontally outward to form an annular welded edge 52. The welded edge 52 is used to connect and seal the lower shell 5 to the inflatable product. The soft lower shell 5 facilitates welding and sealing with the inflatable product.

[0023] like Figs. 2-4 As shown, the cover 1 in this embodiment is a transparent cover. The cover 1 is welded to the upper end of the inner shell 22 and can cover the upper end of the upper air chamber A. A circuit board 3 for measuring air pressure is provided below the cover 1. The circuit board 3 is encapsulated in the upper air chamber A of the inner shell 22, so that the circuit board 3 is waterproof inside the inner shell 22. The circuit board 3 is provided with a display screen 31 for displaying air pressure value and a micro switch 32 for controlling the opening and closing of the display screen 31. The cover 1 is provided with a button 4 that can trigger the micro switch 32. In the natural state, the upper surface of the button 4 is flush with the upper surface of the cover 1. The circuit board 3 is also provided with an electronic sensor and a battery 34. The electronic sensor is used to detect the air pressure of the inflatable product, and the battery 34 powers the display screen 31, the micro switch 32 and the electronic sensor on the circuit board 3. In this embodiment, the battery 34 is a button battery and is encapsulated in the upper air chamber A of the inner shell 22 and cannot be removed.

[0024] In addition, the bottom of the upper air chamber A in this embodiment is provided with an upwardly extending boss 24 for the circuit board 3 to rest on. The circuit board 3 is fixedly connected to the boss 24. The boss 24 is provided with a connection hole 241 for external pressure to be introduced. The lower end of the connection hole 241 is a valve port C. The electronic sensor of the circuit board 3 is located in the connection hole 241. The electronic sensor communicates with the inside of the inflatable product through the connection hole 241, the valve port C, the lower air chamber B, and the through hole 51, thereby measuring the air pressure of the inflatable product. The boss 24 is provided with two screw holes 242. The circuit board 3 is provided with mounting holes 33 corresponding to the screw holes 242. The circuit board 3 is fixedly connected to the boss 24 by screws passing through the mounting holes 33 and the screw holes 242. The circuit board 3 is first fixedly installed on the boss 24 with screws, and then the gauge cover 1 is installed on the circuit board 3, making the installation of the digital pressure gauge and the inflation valve simpler.

[0025] The workflow of this embodiment is as follows:

[0026] A, when the user does not need to measure the air pressure of the inflatable product, the button 4 is in the natural state, the micro switch 32 is in the off state, and the display screen 31 is closed in the standby state;

[0027] B, when the user needs to measure the air pressure of the inflatable product, only needs to press the button 4 on the watch cover 1 to actuate the micro switch 32, so that the display screen 31 in the standby state is lit, so that the display screen 31 displays the air pressure value of the inflatable product;

[0028] C, after the display screen 31 displays for a period of time, the display screen 31 will automatically extinguish, the micro switch 32 returns to the off state, and the display screen 31 is closed in the standby state.

[0029] As shown in Fig. 5 and Fig. 6 , it is embodiment 2 of the utility model.

[0030] The embodiment is basically same with embodiment 1, the difference is that: the outer shell 23 of this embodiment is provided with a plurality of axial setting and along the circumference interval arrangement of the air hole 21, the outer shell 23 of this embodiment is provided with the filter cover 6 on the outer wall, the filter cover 6 includes frame 61 and the filter screen (not shown in drawing) with mesh, the filter screen is embedded on the wall and the bottom of frame 61, so that the air hole 21 is covered by the filter screen, the filter screen of filter cover 6 can prevent impurities from entering the inflation valve through the air hole 21, and the frame 61 provides support for the filter screen, so that the filter screen can cover the air hole 21 of the outer shell 23.

Claims

1. A digital pressure gauge for an inflating product, comprising a gauge cover (1) of the pressure gauge and a valve housing (2) of the inflating valve, the valve housing (2) having an upper air chamber (A) and a lower air chamber (B) therein, the upper air chamber (A) and the lower air chamber (B) being in communication with each other through a valve port (C), the gauge cover (1) being capable of covering an upper end of the upper air chamber (A), characterized in that: The lower part of the cover (1) is provided with a circuit board (3) for measuring air pressure, the circuit board (3) is located in the upper air chamber (A), the circuit board (3) is provided with a display screen (31) for displaying air pressure value and a micro switch (32) for controlling the opening and closing of the display screen (31), the cover (1) is provided with a button (4) capable of triggering the micro switch (32), the button (4) is in a natural state, and the upper surface of the button (4) is flush with the upper surface of the cover (1).

2. The digital pressure gauge according to claim 1, characterized in that: The valve housing (2) comprises an inner housing (22) and an outer housing (23), the inner housing (22) is threadedly connected in the recess of the outer housing (23), the upper air chamber (A) is arranged in the inner housing (22), the lower air chamber (B) is arranged in the recess of the outer housing (23), and the valve port (C) is arranged at the communication position of the inner housing (22) and the recess of the outer housing (23).

3. The digital pressure gauge of claim 2, wherein: The cover (1) is welded to the upper end of the inner housing (22), and the circuit board (3) is packaged in the upper air chamber (A) of the inner housing (22).

4. The digital pressure gauge of claim 2, wherein: The circuit board (3) further comprises a battery (34), the battery (34) is packaged in the upper air chamber (A) of the inner housing (22), and the battery (34) supplies power to the circuit board (3).

5. The digital pressure gauge of claim 1, wherein: The outer peripheral wall of the valve housing (2) is sleeved with a lower housing (5), the lower housing (5) is provided with a through hole (51) communicating with the lower air chamber (B) of the valve housing (2), the outer peripheral wall of the lower housing (5) extends horizontally outward to form an annular fusion edge (52), and the fusion edge (52) is used for connecting and sealing the lower housing (5) with the inflatable product.

6. The digital pressure gauge of claim 1, wherein: The peripheral wall of the valve housing (2) is provided with a plurality of air permeable holes (21) arranged axially and spaced along the circumference, the outer peripheral wall of the valve housing (2) is sleeved with a filter cover (6), the filter cover (6) comprises a frame (61) and a filter screen with mesh, and the filter screen is embedded on the peripheral wall and the bottom of the frame (61), so that the air permeable holes (21) are covered by the filter screen.

7. The digital pressure gauge of claim 1, wherein: The bottom of the upper air chamber (A) is provided with a boss (24) extending upward for placing the circuit board (3), the circuit board (3) is fixedly connected with the boss (24), the boss (24) is provided with a connecting hole (241) for introducing external pressure, the lower end of the connecting hole (241) is the valve port (C), and the electronic sensor of the circuit board (3) is located in the connecting hole (241).

8. The digital pressure gauge of claim 7, wherein: The boss (24) is provided with two screw holes (242), the circuit board (3) is provided with mounting holes (33) corresponding to the screw holes (242), and the circuit board (3) is fixedly connected with the boss (24) by screwing the mounting holes (33) and the screw holes (242).

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