Multifunctional air cylinder device and air pump

Abstract

The embodiment of the utility model discloses a multifunctional air cylinder device and an air pump, and relates to the technical field of inflation equipment, the multifunctional air cylinder device comprises an air cylinder main body, a valve core, a check valve, an air connecting nozzle and an air pressure detection circuit board; the cylinder main body is provided with a first groove body, a second groove body and a third groove body which are communicated with one another; an air passing hole communicated with an air cavity of the air cylinder main body is formed in the bottom of the first groove body; the check valve is arranged in the first groove body and located on one side of the air passing hole. The air connecting nozzle is arranged at the opening of the first groove body in a sealed mode and abuts against the check valve. The valve core is arranged in the second groove body, and the air pressure detection circuit board covers the opening of the third groove body in a sealed mode. The multifunctional air cylinder device integrates air pressure detection, air leakage and the check valve, the functions of air pressure detection and air leakage can be achieved without external devices, cost is greatly saved, and the number of materials is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of inflation equipment technology, and in particular to a multi-functional cylinder device and air pump. Background Technology

[0002] Air pumps are widely used in industrial and civil applications. Their pressure relief and pressure detection functions are crucial for ensuring safe operation, but existing solutions suffer from systemic deficiencies. Traditional solutions typically employ a discrete design, implementing pressure relief and pressure detection as separate modules, leading to structural redundancy and operational defects in the overall system.

[0003] Regarding the pressure relief function, conventional solutions involve connecting an external air hose or nozzle with a pressure relief function to release pressure. This separate design prevents the pressure relief structure from being integrated with the air pump body, requiring additional connection operations and significantly increasing the risk of lost parts. More importantly, the independently designed pressure relief component requires separate design and manufacturing, objectively increasing production costs and assembly complexity.

[0004] In terms of air pressure detection, existing technologies generally employ external pressure sensing pipelines. This approach requires adding a dedicated detection channel outside the air circuit system, which not only complicates the pipeline layout but also increases manufacturing costs due to the need for additional sealing interfaces and connecting components. Especially in compact equipment applications, external detection pipelines can also cause space adaptability issues.

[0005] Based on the above analysis, it is evident that there is an urgent need to develop a novel air pump structure that integrates pressure relief and detection functions through functional integration. An ideal technical solution should effectively address the operational inconvenience, high cost, and insufficient reliability issues associated with existing discrete structures, while ensuring timely pressure control and accurate detection data. This has significant engineering application value for improving the safety performance and user experience of air pump equipment. Utility Model Content

[0006] This utility model provides a multi-functional cylinder device and air pump, aiming to solve at least one of the technical problems in the background art.

[0007] To address the aforementioned problems, in a first aspect, this utility model provides a multifunctional cylinder device, comprising a cylinder body, a valve core, a check valve, an air inlet, and a pressure detection circuit board. The cylinder body has a first groove, a second groove, and a third groove that are interconnected. The bottom of the first groove has an air passage hole that connects to the air chamber of the cylinder body. The check valve is located in the first groove and is situated on one side of the air passage hole. The air inlet is sealed at the opening of the first groove and abuts against the check valve. The valve core is located in the second groove, and the pressure detection circuit board is sealed over the opening of the third groove.

[0008] A further technical solution is that the multi-functional cylinder device also includes a first sealing ring, which is pressed between the air inlet and the first groove.

[0009] A further technical solution is that the upper end face of the first groove is provided with a first mounting platform, the outer side of the air inlet is provided with an ear, and the first sealing ring is sleeved on the air inlet and pressed between the ear and the first mounting platform.

[0010] A further technical solution is that the air inlet is threadedly connected to the first groove body.

[0011] A further technical solution is that the air inlet is provided with an internal thread.

[0012] A further technical solution is that the check valve includes an elastic element and a sealing block. The sealing block is disposed at one end of the elastic element and blocks the air passage, and the other end of the elastic element abuts against the air inlet.

[0013] A further technical solution is that the bottom end of the air inlet is provided with a boss, and one end of the elastic element is sleeved on the boss; the inner side of the first groove is provided with ribs that contact the elastic element.

[0014] A further technical solution is that the multi-functional cylinder device also includes a second sealing ring, and the upper end face of the third groove is provided with a second mounting platform. The second sealing ring is pressed between the air pressure detection circuit board and the second mounting platform.

[0015] A further technical solution is that a pressure sensor is provided on the inner side of the pressure detection circuit board, and the pressure detection circuit board is connected to the side wall of the third groove through fasteners.

[0016] Secondly, this utility model provides an air pump, which includes the multi-functional cylinder device as described in the first aspect.

[0017] Compared with the prior art, the technical effects achieved by the embodiments of this utility model include:

[0018] This utility model provides a multifunctional cylinder device, including a cylinder body, a valve core, a check valve, an air inlet, and a pressure detection circuit board. The cylinder body has a first groove, a second groove, and a third groove that are interconnected. The bottom of the first groove has an air passage hole that connects to the air chamber of the cylinder body. The check valve is located in the first groove and is situated on one side of the air passage hole. The air inlet is sealed at the opening of the first groove and abuts against the check valve. The valve core is located in the second groove, and the pressure detection circuit board is sealed over the opening of the third groove. This multifunctional cylinder device integrates pressure detection, venting, and a check valve, achieving pressure detection and venting functions without the need for external components, greatly saving costs and reducing material usage. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0022] Figure 1 An exploded view of a multifunctional cylinder device proposed in an embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of a multifunctional cylinder device proposed in an embodiment of the present utility model;

[0024] Figure 3 A schematic diagram of the air circuit for voltage detection of a multifunctional cylinder device proposed in this embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of another air path for voltage detection in a multifunctional cylinder device according to an embodiment of the present invention;

[0026] Figure 5A schematic diagram of the air path for voltage detection and leakage of a multifunctional cylinder device according to an embodiment of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the cylinder body for voltage detection of a multifunctional cylinder device proposed in an embodiment of the present invention;

[0028] Figure 7 This is another structural schematic diagram of the cylinder body for voltage detection of a multifunctional cylinder device proposed in an embodiment of the present invention.

[0029] Figure Labels

[0030] Cylinder body 10, valve core 20, shaft core 21, check valve 30, air inlet 40, air pressure detection circuit board 50, first sealing ring 60, second sealing ring 70, fastener 80, first groove 11, second groove 12, second through hole 121, third groove 13, air passage hole 111, first mounting platform 112, rib 113, ear 41, boss 42, elastic element 31, sealing block 32, second mounting platform 131, first through hole 132. Detailed Implementation

[0031] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Similar component reference numerals in the drawings represent similar components. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0033] It should also be understood that the terminology used in this specification of embodiments of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of the present invention. As used in this specification of embodiments of the present invention and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0034] See Figures 1-7This utility model provides a multi-functional cylinder device that integrates air pressure detection, venting, and a check valve 30, enabling air pressure detection and venting functions without the need for external components. To achieve the above technical objectives, the multi-functional cylinder device includes a cylinder body 10, a valve core 20, a check valve 30, an air inlet 40, and an air pressure detection circuit board 50. The specific structure is described below:

[0035] The cylinder body 10 is provided with a first groove 11, a second groove 12 and a third groove 13 that are interconnected. Specifically, the bottom of the third groove 13 is provided with a first through hole 132 that connects to the second groove 12, and the side wall of the second groove 12 is provided with a second through hole 121 that connects to the third groove 13, thereby allowing the first groove 11, the second groove 12 and the third groove 13 to be interconnected.

[0036] The bottom of the first groove 11 is provided with an air passage 111 that connects to the air chamber of the cylinder body 10; the check valve 30 is disposed inside the first groove 11 and located on one side of the air passage 111; the air inlet 40 is sealed at the opening of the first groove 11 and abuts against the check valve 30. When pumping air, the check valve 30 opens under the pressure of the gas in the air chamber and continuously pumps air through the air inlet 40 to an external object to be pumped; when not pumping air, the check valve 30 closes.

[0037] The valve core 20 is disposed in the second groove 12, and the air pressure detection circuit board 50 is sealed and covered on the opening of the third groove 13.

[0038] In specific implementation, the valve core 20 is a standard tire valve core 20, and reliable air release can be achieved by operating the shaft core 21 of the valve core 20. Directly using a standard tire valve core 20 for air release effectively reduces cost and installation difficulty. The valve core 20 can be specifically threaded to the second groove 12; however, this utility model does not specifically limit this connection.

[0039] The air pressure detection circuit board 50 is sealed and covered on the opening of the third groove 13. The air pressure detection circuit board 50 is used to detect air pressure. Since the first groove 11, the second groove 12 and the third groove 13 are interconnected, the air pressure of the first groove 11, the second groove 12 and the third groove 13, that is, the air pressure of the air pump, can be detected.

[0040] The core advantages of this technical solution are reflected in: achieving multi-functional coupling of pressure detection, pressure relief control, and airflow guidance within a limited volume through structural space reconstruction design; achieving precise matching between functional components using modular assembly technology; and establishing an intelligent pressure management system based on physical integration. These technological improvements enable a qualitative leap in the safety, reliability, and economy of the equipment, providing a new technical path for the miniaturization and intelligent development of pneumatic equipment.

[0041] This utility model provides a multifunctional cylinder device, including a cylinder body 10, a valve core 20, a check valve 30, an air inlet 40, and a pressure detection circuit board 50. The cylinder body 10 has a first groove 11, a second groove 12, and a third groove 13 that are interconnected. The bottom of the first groove 11 has an air passage hole 111 that connects to the air chamber of the cylinder body 10. The check valve 30 is located in the first groove 11 and is situated on one side of the air passage hole 111. The air inlet 40 is sealed at the opening of the first groove 11 and abuts against the check valve 30. The valve core 20 is located in the second groove 12, and the pressure detection circuit board 50 is sealed over the opening of the third groove 13. This multifunctional cylinder device integrates pressure detection, venting, and a check valve 30, achieving pressure detection and venting functions without the need for external components, greatly saving costs and reducing material usage.

[0042] Furthermore, in some embodiments, such as this embodiment, the multi-functional cylinder device further includes a first sealing ring 60, which is pressed between the air inlet 40 and the first groove 11. The first sealing ring 60 enables a reliable seal between the air inlet 40 and the first groove 11.

[0043] Furthermore, the first sealing ring 60 is installed as follows: a first mounting recess 112 is provided on the upper end face of the first groove 11, and an ear 41 protrudes from the outer side of the air inlet 40. The first sealing ring 60 is sleeved on the air inlet 40 and pressed between the ear 41 and the first mounting recess 112. During assembly, a reliable seal is achieved by pressing the first sealing ring 60 tightly.

[0044] Furthermore, to improve the ease of connection, the air inlet 40 is threadedly connected to the first groove 11. Specifically, the air inlet 40 has an external thread, the first groove 11 has an internal thread, and the air inlet 40 is detachably threadedly connected to the first groove 11.

[0045] Furthermore, in some embodiments, such as this embodiment, the air inlet 40 is provided with an internal thread. The internal thread of the air inlet 40 is used to facilitate connection with an external air circuit, enabling a detachable quick-connect.

[0046] Furthermore, in some embodiments, such as this embodiment, the check valve 30 includes an elastic element 31 and a sealing block 32. The sealing block 32 is disposed at one end of the elastic element 31 and blocks the vent hole 111, while the other end of the elastic element 31 abuts against the air inlet 40. When not inflated, the sealing block 32 can reliably seal the vent hole 111 by means of the elastic force of the elastic element 31, preventing air leakage.

[0047] Furthermore, to improve the reliability of positioning the elastic element 31, a boss 42 is provided at the bottom end of the air inlet 40, and one end of the elastic element 31 is sleeved on the boss 42. The elastic element 31 may specifically be a spring, but this utility model does not specifically limit it in this regard.

[0048] Furthermore, the inner side of the first groove 11 is provided with ribs 113 that contact the elastic member 31. The ribs 113 can effectively reduce the friction between the elastic member 31 and the first groove 11 when the elastic member 31 extends or retracts.

[0049] Furthermore, in some embodiments, such as this embodiment, the multi-functional cylinder device further includes a second sealing ring 70, and the upper end face of the third groove 13 is provided with a second mounting platform 131. The second sealing ring 70 is pressed between the air pressure detection circuit board 50 and the second mounting platform 131. Specifically, by pressing the second sealing ring 70, a reliable seal can be achieved between the air pressure detection circuit board 50 and the third groove 13, preventing air leakage.

[0050] Furthermore, a pressure sensor is provided on the inner side of the pressure detection circuit board 50. Specifically, the pressure sensor is used to accurately detect the air pressure, thereby achieving precise air pressure detection.

[0051] Furthermore, the air pressure detection circuit board 50 is connected to the side wall of the third groove 13 via fasteners 80. Specifically, both the air pressure detection circuit board 50 and the side wall of the third groove 13 are provided with fixing holes, and the fasteners 80 are screwed into the fixing holes of the air pressure detection circuit board 50 and the side wall of the third groove 13 in sequence to achieve fixation.

[0052] In this utility model, the fastener 80 may specifically be a screw, and the fixing hole may specifically be a screw hole. This utility model does not specifically limit the specific type of fastener.

[0053] This utility model provides an air pump, which includes the multi-functional cylinder device as described in any of the above embodiments.

[0054] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0055] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0057] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0058] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0060] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Since these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

[0061] The above description describes specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A multi-functional cylinder device, characterized in that, The device includes a cylinder body, a valve core, a check valve, an air inlet, and a pressure detection circuit board. The cylinder body has a first groove, a second groove, and a third groove that are interconnected. The bottom of the first groove has an air passage hole that connects to the air chamber of the cylinder body. The check valve is located in the first groove and is situated on one side of the air passage hole. The air inlet is sealed at the opening of the first groove and abuts against the check valve. The valve core is located in the second groove, and the pressure detection circuit board is sealed over the opening of the third groove.

2. The multi-functional cylinder device according to claim 1, characterized in that, It also includes a first sealing ring, which is pressed between the air inlet and the first groove.

3. The multi-functional cylinder device according to claim 2, characterized in that, The upper end face of the first groove is provided with a first mounting platform, and the outer side of the air inlet is provided with an ear. The first sealing ring is sleeved on the air inlet and is pressed between the ear and the first mounting platform.

4. The multi-functional cylinder device according to claim 2, characterized in that, The air inlet is threadedly connected to the first groove body.

5. The multi-functional cylinder device according to claim 2, characterized in that, The air inlet is provided with internal threads.

6. The multi-functional cylinder device according to claim 2, characterized in that, The check valve includes an elastic element and a sealing block. The sealing block is located at one end of the elastic element and blocks the air passage, while the other end of the elastic element abuts against the air inlet.

7. The multi-functional cylinder device according to claim 6, characterized in that, The bottom end of the air inlet is provided with a boss, and one end of the elastic element is sleeved on the boss; the inner side of the first groove is provided with ribs that contact the elastic element.

8. The multi-functional cylinder device according to claim 1, characterized in that, It also includes a second sealing ring, and the upper end face of the third groove is provided with a second mounting platform. The second sealing ring is pressed between the air pressure detection circuit board and the second mounting platform.

9. The multi-functional cylinder device according to claim 8, characterized in that, A pressure sensor is provided on the inner side of the pressure detection circuit board, and the pressure detection circuit board is connected to the side wall of the third groove by fasteners.

10. An air pump, characterized in that, Includes the multi-functional cylinder device as described in any one of claims 1-9.

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