Adjustable piston type oxygen compressor
By employing a one-way valve body and a threaded connection and sealing groove design with the output top cover in the reciprocating oxygen compressor, the problems of quick connection and sealing performance are solved, achieving efficient sealing connection and convenient disassembly process.
Patent Information
- Application Number
- CN202423157669.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing piston-type oxygen compressors lack quick-connect structures, and traditional flange connections are inefficient and cannot guarantee the sealing of the connection points over long-term use.
The valve body and the output top cover are connected by a threaded connection. Combined with the sealing groove design of the female connector and the female connector, the internal seal is achieved by the rebound force of the sealing spring and the inner sealing ring, and the external seal is achieved by the contact between the outer sealing ring and the outer convex ring, thus achieving a quick sealing connection.
It improves connection efficiency, ensures the sealing of the connection, facilitates disassembly and installation, and enhances the ease of use and sealing effect of the equipment.
Smart Images

Figure CN223549381U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of oxygen compression equipment, and more particularly to an adjustable piston oxygen compressor. Background Technology
[0002] A reciprocating compressor is a type of compressor that uses the reciprocating motion of a piston to pressurize and transport gas. It is a positive displacement compressor, also known as a "reciprocating piston compressor" or "reciprocating compressor." It mainly consists of a working chamber, transmission components, a casing, and auxiliary components. The working chamber is directly used to compress gas and consists of a cylinder, cylinder liner, valves, packing, piston, and piston rod. The piston, driven by the piston rod, reciprocates within the cylinder. The volumes of the working chambers on either side of the piston alternately change in opposite directions. On the side with a smaller volume, gas is discharged through the valve due to increased pressure, while on the side with a larger volume, gas is drawn in through the valve due to decreased pressure. The transmission components, used to achieve the reciprocating motion, include crankshaft connecting rods, eccentric sliders, and swashplates, among others. The crankshaft connecting rod mechanism is the most common, consisting of a crosshead, connecting rod, and crankshaft.
[0003] However, the outlet of existing piston-type oxygen compressors lacks a quick connection structure. The traditional flange connection method is slow and cannot guarantee the sealing of the connection during long-term use and disassembly. Utility Model Content
[0004] This application provides an adjustable piston oxygen compressor to solve the problem of the lack of a quick-connect structure at the outlet.
[0005] This application provides an adjustable reciprocating oxygen compressor, including a base, an input end plate mounted on one side of the base, a piston seat mounted on the top of the base, an output cover mounted on the top of the piston seat, a piston cylinder mounted inside the piston seat, and a compression piston movably connected inside the piston cylinder; two sets of threaded heads are provided on the outer side of the output cover, the two sets of threaded heads being symmetrically distributed on the outer side of the output cover, a one-way valve body threaded to one side of each threaded head, and a female connector mounted on one side of the one-way valve body. The female connector has a female connector on one side; the female connector has a sealing groove inside, a sealing spring is installed inside the sealing groove, an inner sealing ring is installed on one side of the sealing spring, the female connector has multiple sets of limiting protrusions on its outer wall, the multiple sets of limiting protrusions are arranged in a ring on the outer wall of the female connector, the sealing groove has multiple sets of limiting grooves on its inner wall, the multiple sets of limiting grooves are arranged in a ring on the inner wall of the sealing groove, and the sealing groove also has multiple sets of deflection slots on its inner wall, the multiple sets of deflection slots are arranged in a ring on the inner wall of the sealing groove.
[0006] Preferably, an input shaft is connected through one side of the input end plate, a drive cam is fixedly connected to one end of the input shaft, an output shaft is fixedly connected to one side of the drive cam, and an output connecting rod is installed at the bottom of the compression piston.
[0007] Preferably, two sets of input bearings are installed inside the input end plate, and the two sets of input bearings are symmetrically distributed inside the input end plate.
[0008] Preferably, the inner walls at both ends of the one-way valve body are provided with internal valve body threads, and one side of the female connector is threaded with a connector thread head.
[0009] Preferably, the one-way valve body has a limiting wall inside, and a one-way valve disc is movably connected inside the one-way valve body.
[0010] Preferably, an outer sealing ring is installed on the outer side of the female connector, and an outer protruding ring is fixedly connected to the outer side of the female connector.
[0011] Preferably, a metal block is fitted on one side of the plurality of sets of limiting protrusions, and a magnet block is fitted on one side of the plurality of sets of deflection slots.
[0012] Beneficial effects:
[0013] Considering the lack of a quick-connect structure, two sets of one-way valve bodies are installed by connecting the internal thread of the one-way valve body to the threaded head of the equipment on the output top cover. Then, the female connector is installed on the one-way valve body at the output end of the equipment through the threaded head of the female connector. Next, the sub-connector of the output pipe is inserted into the sealing groove of the female connector. During insertion, multiple sets of limiting protrusions enter the limiting groove and compress the sealing spring and inner sealing ring in the sealing groove until the limiting protrusions enter the bottom of the limiting groove. The deflector connector then locks the limiting protrusions into the deflection slot, thus locking the sub-connector. The internal seal at the connection is achieved by the rebound force of the sealing spring and the inner sealing ring, and the external seal at the connection is achieved by the contact between the outer protrusion ring and the outer sealing ring, thus realizing the quick-sealing connection function of the device.
[0014] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of an adjustable piston oxygen compressor according to the present invention.
[0017] Figure 2 This is a schematic diagram of the exploded structure of an adjustable piston oxygen compressor according to this utility model.
[0018] Figure 3 This is a schematic diagram of the one-way valve body structure of an adjustable piston oxygen compressor according to this utility model.
[0019] Figure 4 This is a schematic diagram of the connecting pipe assembly of an adjustable piston oxygen compressor according to this utility model.
[0020] Figure 5 This is a schematic diagram of the internal structure of the female connector of an adjustable piston oxygen compressor according to this utility model.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Equipment base; 2. Input end plate; 3. Piston seat; 4. Output top cover; 5. Input shaft; 6. Drive cam; 7. Output shaft; 8. Piston cylinder; 9. Compression piston; 10. Output connecting rod; 11. Input bearing; 12. Equipment threaded head; 13. One-way valve body; 14. Internal thread of valve body; 15. Limiting wall; 16. One-way valve disc; 17. Female connector; 18. Female connector; 19. Connector threaded head; 20. Sealing groove; 21. Sealing spring; 22. Inner sealing ring; 23. Outer sealing ring; 24. Outer convex ring; 25. Restricting protrusion; 26. Restricting slide groove; 27. Deflection slot; 28. Metal block; 29. Magnet block. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.
[0025] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0026] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
[0029] This utility model provides, for example Figure 1-5An adjustable reciprocating oxygen compressor is shown, comprising a base 1, an input end plate 2 mounted on one side of the base 1, a piston seat 3 mounted on the top of the base 1, an output cover 4 mounted on the top of the piston seat 3, a piston cylinder 8 mounted inside the piston seat 3, and a compression piston 9 movably connected inside the piston cylinder 8; two sets of threaded heads 12 are provided on the outer side of the output cover 4, the two sets of threaded heads 12 are symmetrically distributed on the outer side of the output cover 4, a one-way valve body 13 is threadedly connected to one side of the threaded head 12, and a female connector 17 is mounted on one side of the one-way valve body 13. A sub-connector 18 is provided on one side of the 7; a sealing groove 20 is provided inside the female connector 17, a sealing spring 21 is installed inside the sealing groove 20, an inner sealing ring 22 is installed on one side of the sealing spring 21, multiple sets of limiting protrusions 25 are provided on the outer wall of the sub-connector 18, the multiple sets of limiting protrusions 25 are distributed in a ring on the outer wall of the sub-connector 18, multiple sets of limiting sliding grooves 26 are provided on the inner wall of the sealing groove 20, the multiple sets of limiting sliding grooves 26 are distributed in a ring on the inner wall of the sealing groove 20, and multiple sets of deflection slots 27 are also provided on the inner wall of the sealing groove 20, the multiple sets of deflection slots 27 are distributed in a ring on the inner wall of the sealing groove 20.
[0030] The device consists of a base 1, an input end plate 2, a piston seat 3, and an output top cover 4. The piston cylinder 8 and its internal compression piston 9 form the oxygen compression unit. Two sets of threaded heads 12 connect the oxygen inlet and outlet. A one-way valve body 13 ensures a one-way flow at the inlet and outlet, guaranteeing compression efficiency. The sub-connector 18 inserts into the sealing groove 20 on the female connector 17. During insertion, it compresses the sealing spring 21 and inner sealing ring 22 within the sealing groove 20, generating a rebound force that provides sealing and engagement pressure. Multiple sets of limiting protrusions 25 slide along multiple sets of limiting grooves 26 and deflect into multiple sets of deflection slots 27, thus achieving the connection and engagement of the sub-connector 18 and the female connector 17. This connection method significantly improves the connection effect and facilitates disassembly.
[0031] An input shaft 5 is connected through one side of the input end plate 2. A drive cam 6 is fixedly connected to one end of the input shaft 5. An output shaft 7 is fixedly connected to one side of the drive cam 6. An output connecting rod 10 is installed at the bottom of the compression piston 9.
[0032] The input shaft 5 is the driving component of the device. When the external motor is started, the input shaft 5 can drive the drive cam 6 to rotate. Furthermore, the output shaft 7 on the drive cam 6 can drive the output rod 10 and the compression piston 9 to move back and forth to use the compression function of the device.
[0033] Two sets of input bearings 11 are installed inside the input end plate 2, and the two sets of input bearings 11 are symmetrically distributed inside the input end plate 2.
[0034] The use of two sets of input bearings 11 provides support for the input shaft 5 and can increase the rotational speed of the shaft through the internal balls of the bearings, thereby further improving the compression efficiency of the device.
[0035] The inner walls of both ends of the one-way valve body 13 are provided with valve body internal threads 14, and the female connector 17 is threaded with a connector thread head 19 on one side.
[0036] The internal thread 14 of the valve body can be threaded to the external thread on the threaded head 19 of the connector, thereby realizing the connection between the female connector 17 and the one-way valve body 13. This connection method facilitates the user's installation work.
[0037] The one-way valve body 13 is provided with a limit wall 15 inside, and a one-way valve disc 16 is movably connected inside the one-way valve body 13.
[0038] The limiting wall 15 provides support for the one-way valve disc 16 and can limit its movement, thereby realizing the single-channel function of the valve.
[0039] An outer sealing ring 23 is installed on the outer side of the female connector 17, and an outer protruding ring 24 is fixedly connected to the outer side of the female connector 18.
[0040] When the male connector 18 is connected and locked to the female connector 17, the outer convex ring 24 will squeeze the outer sealing ring 23, thereby achieving an external seal at the connection.
[0041] A metal block 28 is fitted on one side of multiple sets of limiting protrusions 25, and a magnet block 29 is fitted on one side of multiple sets of deflection slots 27.
[0042] Among them, the metal block 28 can be attracted and connected to the magnet block 29, thereby further improving the locking effect after the protrusion 25 is restricted from deflection and locked, and ensuring the connection effect at the connection point.
[0043] Working principle: Before using the equipment, the user installs two sets of one-way valve bodies 13 by connecting the internal thread 14 of the valve body 13 to the threaded head 12 of the equipment on the output top cover 4. Then, the female connector 17 is installed on the one-way valve body 13 at the output end of the equipment by connecting the female connector 17 to the female connector 17 through the connector thread head 19. Then, the sub-connector 18 of the output pipe is aligned with the sealing groove 20 of the female connector 17 and inserted. When inserted, multiple sets of limiting protrusions 25 enter the limiting slide groove 26 and squeeze the sealing spring 21 and the inner sealing ring 22 in the sealing groove 20 until the limiting protrusions 25 enter the bottom of the limiting slide groove 26. The deflector connector 18 then locks the limiting protrusions 25 into the deflection slot 27 to lock the sub-connector 18. The internal seal at the connection is achieved by the rebound force of the sealing spring 21 and the inner sealing ring 22, and the external seal at the connection is achieved by the contact between the outer protrusion ring 24 and the outer sealing ring 23. Thus, a quick sealing connection between the output pipe and the equipment is achieved.
[0044] The user then connects the input shaft 5 to the motor and turns on the motor. When the motor is powered on, it drives the drive cam 6 to rotate through the input shaft 5. The drive cam 6 drives the compression piston 9 to slide back and forth in the piston cylinder 8 through the connection between the output shaft 7 and the output connecting rod 10 to compress the oxygen. When the compression piston 9 moves down, the volume inside the piston seat 3 increases, so that the internal air pressure is lower than the external air pressure. The external oxygen will push the one-way valve 16 in the one-way valve body 13 at the air inlet end to rotate, so that oxygen is injected into the equipment to achieve air intake. The one-way valve 16 in the one-way valve body 13 at the air outlet end, which is set in the opposite direction, is blocked by the limiting wall 15 and cannot enter the air. Conversely, when the compression piston 9 is compressed, the oxygen will be compressed and can be discharged from the air outlet end after opening the valve on the output pipe. Thus, the oxygen compression function of this adjustable piston oxygen compressor is realized.
[0045] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. An adjustable piston-type oxygen compressor, comprising a base (1), characterized in that: An input end plate (2) is installed on one side of the equipment base (1), a piston seat (3) is installed on the top of the equipment base (1), an output top cover (4) is installed on the top of the piston seat (3), a piston cylinder (8) is installed inside the piston seat (3), and a compression piston (9) is movably connected inside the piston cylinder (8). Two sets of equipment thread heads (12) are provided on the outside of the output top cover (4). The two sets of equipment thread heads (12) are symmetrically distributed on the outside of the output top cover (4). One side of the equipment thread head (12) is threadedly connected to a one-way valve body (13). A female connector (17) is installed on one side of the one-way valve body (13). A female connector (18) is provided on one side of the female connector (17). The female connector (17) has a sealing groove (20) inside, and a sealing spring (21) is installed inside the sealing groove (20). An inner sealing ring (22) is installed on one side of the sealing spring (21). The outer wall of the sub-connector (18) is provided with multiple sets of limiting protrusions (25), which are arranged in a ring on the outer wall of the sub-connector (18). The inner wall of the sealing groove (20) has multiple sets of limiting grooves (26), which are arranged in a ring on the inner wall of the sealing groove (20). The inner wall of the sealing groove (20) also has multiple sets of deflection slots (27), which are arranged in a ring on the inner wall of the sealing groove (20).
2. The adjustable piston oxygen compressor according to claim 1, characterized in that: An input shaft (5) is connected through one side of the input end plate (2), a drive cam (6) is fixedly connected to one end of the input shaft (5), an output shaft (7) is fixedly connected to one side of the drive cam (6), and an output connecting rod (10) is installed at the bottom of the compression piston (9).
3. An adjustable piston oxygen compressor according to claim 1, characterized in that: The input end plate (2) is equipped with two sets of input bearings (11), which are symmetrically distributed inside the input end plate (2).
4. An adjustable piston oxygen compressor according to claim 1, characterized in that: The inner walls of both ends of the one-way valve body (13) are provided with valve body internal threads (14), and one side of the female connector (17) is threaded with a connector thread head (19).
5. An adjustable piston oxygen compressor according to claim 1, characterized in that: The one-way valve body (13) is provided with a limit wall (15) inside, and a one-way valve disc (16) is movably connected inside the one-way valve body (13).
6. An adjustable piston oxygen compressor according to claim 1, characterized in that: An outer sealing ring (23) is installed on the outer side of the female connector (17), and an outer protruding ring (24) is fixedly connected to the outer side of the female connector (18).
7. An adjustable reciprocating oxygen compressor according to claim 1, characterized in that: A metal block (28) is fitted on one side of the multiple sets of limiting protrusions (25), and a magnet block (29) is fitted on one side of the multiple sets of deflection slots (27).