Air pressure detector

Abstract

The utility model discloses an air pressure detector, which belongs to the technical field of air pressure detection, and comprises an air pressure gauge, a one-way air valve assembly is detachably connected onto the air pressure gauge, the one-way air valve assembly comprises a dismounting part, an air connecting seat, an elastic part and an air valve core, the dismounting part is respectively detachably matched with the air pressure gauge and the air connecting seat, and an air passing cavity is formed between the dismounting part and the air pressure gauge and the air connecting seat during assembly. At least part of the valve core is located in the air passing cavity and provided with an air inlet hole, the rest part of the valve core extends out of the air connecting seat and provided with a valve channel, the elastic piece is arranged in the air passing cavity, the valve core elastically moves through the elastic piece, and communication or closing among the air passing cavity, the air inlet hole and the valve channel is achieved during movement. According to the structure, the barometer and the air connecting seat are assembled and disassembled in a matched mode through the disassembling and assembling piece, the air pressure detector can be disassembled and stored when not used and can be assembled when used, the use flexibility is high, meanwhile, a user can rapidly and conveniently conduct air pressure detection, and in addition, any air leakage problem does not occur when the air pressure detector is used.

Description

Technical Field

[0001] The utility model relates to the technical field of air pressure detection, in particular to an air pressure detector. Background Art

[0002] The air pressure detection device can be used to detect the gas pressure in the pressure vessel. The air pressure detection device usually includes a conduit for connecting to the air pressure detection port of the pressure vessel and an instrument panel installed on the conduit. When the conduit is connected to the air pressure detection port of the pressure vessel, the instrument panel can display the pressure of the gas in the pressure vessel.

[0003] For example, the utility model patent with Chinese patent number CN202021029677.5 discloses a pressure detection gauge, the utility model patent with Chinese patent number CN202320432516.8 discloses a pressure safety detection device for filling gas cylinders, and the utility model patent with Chinese patent number CN202321895146.8 discloses a pressure detection device.

[0004] However, the above-mentioned air pressure detection device has poor flexibility in use, which makes it impossible for users to quickly and conveniently perform air pressure detection. In addition, it is easy to cause gas leakage during use, and the safety of use is low.

[0005] Therefore, further improvement is necessary. Utility Model Content

[0006] The utility model aims to provide an air pressure detector to overcome the deficiencies in the prior art.

[0007] A pressure detector designed for this purpose comprises a pressure gauge, the pressure gauge is detachably connected to a one-way air valve assembly, the one-way air valve assembly comprises a disassembly component, an air receiving seat, an elastic component, and a valve core, the disassembly component is respectively detachably matched with the pressure gauge and the air receiving seat, and an air cavity is formed between them when assembled, the valve core is at least partially located in the air cavity and is provided with an air inlet hole, the remaining part of the valve core extends out of the air receiving seat and is provided with a valve channel, the elastic component is arranged in the air cavity, the valve core is elastically movable through the elastic component, and when moving, the air cavity, the air inlet hole, and the valve channel are connected or closed.

[0008] The air receiving seat is provided with a connecting hole and a sliding hole, the connecting hole and the sliding hole are interconnected and penetrate the air receiving seat up and down, the disassembly component is disassembled and assembled with the connecting hole, and the disassembly component is penetrated up and down with a disassembly hole, one end of the valve core is located in the disassembly hole, and the other end passes through the sliding hole and extends out of the air receiving seat.

[0009] A disassembly and assembly positioning step is arranged in the disassembly and assembly hole, a positioning portion is arranged on the valve core, a valve core positioning step is arranged on the lower side of the positioning portion, and the elastic member positioning sleeve is arranged on the positioning portion, one end of which elastically acts on the disassembly and assembly positioning step, and the other end elastically acts on the valve core positioning step.

[0010] The diameter of the connecting hole is larger than that of the sliding hole, and an air connection positioning step is formed between the two. The valve core is elastically movable in a direction away from the disassembly component at all times through the elastic force of the elastic member, and is positioned on the air connection positioning step through the positioning action of the valve core positioning step.

[0011] A first sealing member is provided between the valve core positioning step and the gas receiving positioning step, and the two are sealed and matched through the first sealing member.

[0012] A sliding portion extends below the valve core positioning step, passes through the sliding hole, extends out of the air receiving seat, and is detachably connected to an air receiving nozzle connected to the pressure vessel, the air receiving nozzle is communicated with the valve channel, the sliding portion is provided with the valve channel along the axial direction, and the side is provided with the air inlet hole communicated with the valve channel.

[0013] The diameter of the sliding portion is smaller than the diameter of the sliding hole, and a second sealing member is provided between the two. The sliding portion and the sliding hole are sealed by the second sealing member, and the air inlet hole is located between the first sealing member and the second sealing member.

[0014] A third seal is provided between the disassembly part and the pressure gauge, and the two are sealed together through the third seal. A fourth seal is provided between the disassembly part and the air receiving seat, and the two are sealed together through the fourth seal. A fifth seal is provided between the sliding part and the air receiving nozzle, and the two are sealed together through the fifth seal. A sixth seal is also provided on the air receiving nozzle, which is sealed together with the pressure vessel.

[0015] The pressure gauge and the disassembly component, the disassembly component and the air receiving seat, and the sliding portion and the air receiving nozzle are respectively disassembled and matched with each other through threads, buckles, or fasteners.

[0016] The barometer is provided with a barometer hole, and the disassembly and assembly part and the barometer hole are mutually disassembled and assembled through threads, buckles, or fasteners.

[0017] The utility model improves the above structure and utilizes disassembly and assembly parts to enable the pressure gauge and the air socket to be disassembled and assembled, so that the components of the pressure detector can be disassembled and stored when not in use. When in use, only the components of the pressure detector need to be assembled, which has high flexibility of use.

[0018] When it is necessary to detect the gas pressure in the pressure vessel, the pressure vessel is connected to the valve core, and the valve core is driven to overcome the elastic force of the elastic part. The valve core moves and connects the air cavity, the air inlet hole and the valve channel. The gas in the pressure vessel can enter the barometer, and the barometer displays the corresponding value according to the air pressure conditions, thereby realizing gas pressure detection, allowing users to quickly and conveniently perform air pressure detection. In addition, the air pressure detector will not have any gas leakage problems when in use, which not only ensures the accuracy of air pressure detection, but also ensures the safety of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic diagram of the exploded structure of an embodiment of the utility model.

[0020] Figure 2 This is a schematic diagram of the assembly structure of an embodiment of the utility model.

[0021] Figure 3 Schematic diagram of the exploded structure of the one-way gas valve assembly.

[0022] Figure 4 It is a schematic diagram of the assembly cross-sectional structure of the one-way air valve assembly. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-Figure 4The pressure detector includes a barometer 1, and the barometer 1 is detachably connected with a one-way air valve assembly, the one-way air valve assembly includes a disassembly component 2, an air receiving seat 3, an elastic component 4, and a valve core 5. The disassembly component 2 is respectively disassembled and assembled with the barometer 1 and the air receiving seat 3, and an air cavity is formed between them when assembled. The valve core 5 is at least partially located in the air cavity and is provided with an air inlet hole 6. The remaining part of the valve core 5 extends out of the air receiving seat 3 and is provided with a valve channel 7. The elastic component 4 is arranged in the air cavity, and the valve core 5 is elastically movable through the elastic component 4, and the air cavity, the air inlet hole 6, and the valve channel 7 are connected or closed when moving.

[0026] This embodiment utilizes the disassembly and assembly parts 2 to enable the pressure gauge 1 and the air receiving seat 3 to be disassembled and assembled, so that the components of the pressure detector can be disassembled and stored when not in use. When in use, only the components of the pressure detector need to be assembled, which has high flexibility of use.

[0027] When it is necessary to detect the gas pressure in the pressure vessel, the pressure vessel is docked with the valve core 5, and the valve core 5 is driven to overcome the elastic force of the elastic member 4. The valve core 5 moves and connects the air cavity, the air inlet 6, and the valve channel 7. The gas in the pressure vessel can enter the barometer 1, and the barometer 1 displays the corresponding numerical value according to the air pressure conditions, thereby realizing gas pressure detection, allowing users to quickly and conveniently perform air pressure detection. In addition, the air pressure detector will not have any gas leakage problems when in use, which not only ensures the accuracy of air pressure detection, but also ensures the safety of users.

[0028] Among them, a connecting hole 8 and a sliding hole 9 are provided on the air receiving seat 3, the connecting hole 8 and the sliding hole 9 are interconnected and penetrate the air receiving seat 3 from top to bottom, the disassembly component 2 cooperates with the connecting hole 8 for disassembly and assembly, and the disassembly component 2 penetrates a disassembly hole 20 from top to bottom, one end of the valve core 5 is located in the disassembly hole 20, and the other end passes through the sliding hole 9 and extends out of the air receiving seat 3. The valve core 5 can reciprocate along the axis of the connecting hole 8 and the sliding hole 9. At the same time, the pressure vessel is docked with the end of the valve core 5 extending out of the air receiving seat 3, so that the air pressure inside it enters the valve channel 7.

[0029] A disassembly and assembly positioning step 10 is provided in the disassembly and assembly hole 20, a positioning portion 11 is provided on the valve core 5, a valve core positioning step 12 is provided on the lower side of the positioning portion 11, and the elastic member 4 is positioned on the positioning portion 11, one end of which elastically acts on the disassembly and assembly positioning step 10, and the other end elastically acts on the valve core positioning step 12.

[0030] The diameter of the connecting hole 8 is larger than that of the sliding hole 9, and an air connection positioning step is formed between the two. The valve core 5 always moves elastically away from the disassembly component 2 through the elastic force of the elastic part 4, and is positioned on the air connection positioning step through the valve core positioning step 12.

[0031] In this embodiment, the elastic member 4 is a compression spring, which uses the positioning portion 11 to achieve positioning, and at the same time always generates elastic force on the disassembly positioning step 10 and the valve core positioning step 12, so that the valve core 5 always moves elastically away from the disassembly member 2 in a natural state.

[0032] A first seal 13 is provided between the valve core positioning step 12 and the air connection positioning step, and the two are sealed together through the first seal 13, whereby when the valve core positioning step 12 and the air connection positioning step are positioned together, the sliding hole 9 and the disassembly hole 20 can be sealed and closed.

[0033] In this embodiment, a first positioning groove is provided at the lower side of the valve core positioning step 12 , and the first sealing member 13 is positioned and arranged on the first positioning groove.

[0034] A sliding portion 14 extends below the valve core positioning step 12, passes through the sliding hole 9, and extends out of the air receiving seat 3, and is detachably connected to a gas receiving nozzle 15 connected to the pressure vessel, and the gas receiving nozzle 15 is communicated with the valve channel 7. The sliding portion 14 is provided with the valve channel 7 along the axial direction, and an air inlet hole 6 communicated with the valve channel 7 is provided on the side.

[0035] The diameter of the sliding portion 14 is smaller than that of the sliding hole 9 , and a second seal 16 is provided between the two. The sliding portion 14 and the sliding hole 9 are sealed by the second seal 16 , and the air inlet 6 is located between the first seal 13 and the second seal 16 .

[0036] In this embodiment, a second positioning groove is provided on the side of the sliding portion 14, and the second sealing member 16 is positioned on the second positioning groove. At the same time, the sliding portion 14 can reciprocate in the sliding hole 9, and the second sealing member 16 always seals with the sliding hole 9 when the sliding portion 14 reciprocates.

[0037] When the valve core 5 moves toward the disassembly part 2, the first sealing member 13 leaves the air connection positioning step, and the air inlet hole 6 enters the disassembly hole 20. At this time, the valve channel 7, the air inlet hole 6, and the disassembly hole 20 are connected to each other; when the valve core 5 moves in the direction away from the disassembly part 2, the first sealing member 13 seals on the air connection positioning step, and the air inlet hole 6 is located in the sliding hole 9. At this time, the valve channel 7, the air inlet hole 6, and the disassembly hole 20 are closed to each other.

[0038] A third seal is provided between the disassembly part 2 and the barometer 1, and the two are sealed together through the third seal. A fourth seal 17 is provided between the disassembly part 2 and the air receiving seat 3, and the two are sealed together through the fourth seal 17. A fifth seal 18 is provided between the sliding part 14 and the air receiving nozzle 15, and the two are sealed together through the fifth seal 18.

[0039] The above-mentioned components are sealed with each other by using seals, which can effectively prevent gas leakage from the gaps at the connection points of the components, ensure the safety of the air pressure detector, and at the same time improve the compactness and stability of the connection between the components.

[0040] The gas receiving nozzle 15 is also provided with a sixth sealing member which is in sealing cooperation with the pressure vessel, so that the gas receiving nozzle 15 is sealed when docking with the pressure vessel to avoid gas leakage.

[0041] The pressure gauge 1 and the disassembly component 2, the disassembly component 2 and the air receiving seat 3, and the sliding portion 14 and the air receiving nozzle 15 are respectively disassembled and matched with each other through threads, buckles, or fasteners.

[0042] The barometer 1 is provided with a barometer hole 19, and the disassembly component 2 and the barometer hole 19 are mutually disassembled and matched via threads, buckles, or fasteners.

[0043] In this embodiment, the pressure gauge hole 19 is a threaded hole, the upper and lower outer walls of the disassembly and assembly part 2 are respectively provided with threads, the connecting hole 8 is provided with threads, the disassembly and assembly are achieved between the disassembly and assembly part 2 and the pressure gauge hole 19 and the connecting hole 8 through threads, the outer wall of the sliding part 14 is provided with threads, the air connecting hole is provided on the air nozzle 15, the air connecting hole is provided with threads, and the disassembly and assembly are achieved between the sliding part 14 and the air connecting hole through threads.

[0044] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An air pressure detector, comprising an air pressure gauge (1), characterized in that: The pressure gauge (1) is detachably connected to a one-way air valve assembly, the one-way air valve assembly comprising a disassembly component (2), an air receiving seat (3), an elastic component (4), and a valve core (5). The disassembly component (2) is respectively detachably matched with the pressure gauge (1) and the air receiving seat (3), and forms an air passage cavity between them when assembled. The valve core (5) is at least partially located in the air passage cavity and is provided with an air inlet hole (6). The remaining part of the valve core (5) extends out of the air receiving seat (3) and is provided with a valve channel (7). The elastic component (4) is arranged in the air passage cavity. The valve core (5) is elastically movable through the elastic component (4), and when movable, the air passage cavity, the air inlet hole (6), and the valve channel (7) are connected or closed.

2. The air pressure detector according to claim 1, characterized in that: The air receiving seat (3) is provided with a connecting hole (8) and a sliding hole (9), the connecting hole (8) and the sliding hole (9) are interconnected and penetrate the air receiving seat (3) vertically, the disassembly component (2) cooperates with the connecting hole (8) for disassembly and assembly, the disassembly component (2) penetrates vertically, one end of the valve core (5) is located in the disassembly and assembly hole (20), and the other end passes through the sliding hole (9) and protrudes out of the air receiving seat (3).

3. The air pressure detector according to claim 2, characterized in that: A disassembly and assembly positioning step (10) is provided in the disassembly and assembly hole (20), a positioning portion (11) is provided on the valve core (5), a valve core positioning step (12) is provided on the lower side of the positioning portion (11), and the elastic member (4) is positioned and sleeved on the positioning portion (11), one end of which elastically acts on the disassembly and assembly positioning step (10), and the other end of which elastically acts on the valve core positioning step (12).

4. The air pressure detector according to claim 3, characterized in that: The diameter of the connecting hole (8) is greater than the diameter of the sliding hole (9), and an air connection positioning step is formed between the two. The valve core (5) is elastically movable in a direction away from the disassembly component (2) by the elastic force of the elastic component (4), and is positioned on the air connection positioning step by the valve core positioning step (12).

5. The air pressure detector according to claim 4, characterized in that: A first sealing member (13) is provided between the valve core positioning step (12) and the air connection positioning step, and the two are sealed together through the first sealing member (13).

6. The air pressure detector according to claim 5, characterized in that: A sliding portion (14) extends below the valve core positioning step (12), the sliding portion (14) passes through the sliding hole (9) and extends out of the air receiving seat (3), and is detachably connected to an air receiving nozzle (15) connected to the pressure vessel, the air receiving nozzle (15) is communicated with the valve channel (7), the sliding portion (14) is provided with the valve channel (7) along the axial direction, and the side portion is provided with the air inlet hole (6) communicated with the valve channel (7).

7. The air pressure detector according to claim 6, characterized in that: The diameter of the sliding portion (14) is smaller than the diameter of the sliding hole (9), and a second sealing member (16) is provided between the two. The sliding portion (14) and the sliding hole (9) are sealed by the second sealing member (16), and the air inlet hole (6) is located between the first sealing member (13) and the second sealing member (16).

8. The air pressure detector according to claim 6, characterized in that: A third seal is provided between the disassembly component (2) and the pressure gauge (1), and the two are sealed together through the third seal. A fourth seal (17) is provided between the disassembly component (2) and the air receiving seat (3), and the two are sealed together through the fourth seal (17). A fifth seal (18) is provided between the sliding portion (14) and the air receiving nozzle (15), and the two are sealed together through the fifth seal (18). The air receiving nozzle (15) is also provided with a sixth seal that is sealed together with the pressure vessel.

9. The air pressure detector according to claim 6, characterized in that: The pressure gauge (1) and the disassembly component (2), the disassembly component (2) and the air receiving seat (3), and the sliding portion (14) and the air receiving nozzle (15) are respectively disassembled and matched with each other through threads, buckles, or fasteners.

10. The air pressure detector according to claim 1, characterized in that: The barometer (1) is provided with a barometer hole (19), and the disassembly component (2) and the barometer hole (19) are mutually disassembled and assembled via threads, buckles, or fasteners.

Images