Oil return one-way valve with zero loss of compressed air

Abstract

The application discloses a compressed air zero-loss oil return check valve which comprises a shell, a flow-through assembly and a floating assembly, the flow-through assembly comprises an inlet flow cavity and an outlet flow cavity, the inlet flow cavity is arranged on the shell, one end of the inlet flow cavity is communicated with the outside, and the other end is located in the shell, and the inlet flow cavity is used for fluid input; the outlet flow cavity is arranged on the shell, and one end of the outlet flow cavity is communicated with the end of the inlet flow cavity located in the inlet flow cavity. The application controls the opening and closing of the flow-through assembly by arranging the floating assembly, so that when compressed air is injected into the inlet flow cavity, the compressed air can be blocked in the inlet flow cavity and cannot leak outward, and when the liquid volume in the inlet flow cavity accumulates to a certain height and the floating element floats up, the outlet flow cavity is communicated with the inlet flow cavity, so that the liquid is discharged, and the liquid in the inlet flow cavity can play a liquid sealing effect at this time, so that the compressed air cannot be discharged from the place, the compressed air zero-loss oil return check valve cannot appear the compressed air leakage condition during use, and the production efficiency of the compressed air is ensured.

Description

Technical Field

[0001] This invention relates to the field of check valves, and more specifically, to a zero-loss compressed air return check valve. Background Technology

[0002] An air compressor is a device that compresses air to generate compressed air. According to its working principle, it is divided into various types such as reciprocating piston type, rotary vane type, or centrifugal type. When the air compressor is in normal use, it is necessary to discharge the oil or water inside to avoid affecting the working life of the equipment. Therefore, a one-way valve is set in the part of the system from the main unit to discharge the liquid and prevent the liquid from flowing back. However, when discharging the liquid, it is inevitable that compressed air will be lost, which will affect the production efficiency of compressed air. Summary of the Invention

[0003] In view of the shortcomings of existing return oil check valves mentioned in the background art during use, the present invention provides a return oil check valve with zero compressed air loss, which has the advantage of zero compressed air loss and solves the technical problem that the return oil check valve will cause compressed air loss during normal use.

[0004] This invention discloses a zero-loss compressed air return check valve, comprising:

[0005] case;

[0006] A flow-through assembly includes an inlet chamber and an outlet chamber. The inlet chamber is located within the housing, with one end connected to the outside and the other end located inside the housing, for fluid input. The outlet chamber is located within the housing, with one end connected to the inlet chamber and the other end connected to the outside, for fluid discharge.

[0007] A floating assembly includes a floating cavity and a floating component. The floating cavity is formed in the housing and located at the junction of the inlet cavity and the outlet cavity. The floating component is disposed in the floating cavity and the density of the floating component is less than the density of the liquid.

[0008] When the liquid in the inflow chamber cannot make the floating component float, the floating component will seal the outflow chamber. When the liquid in the inflow chamber can make the floating component float, the inflow chamber and the outflow chamber will be connected, allowing the liquid to be discharged.

[0009] According to one embodiment of the present invention, the floating cavity is cylindrical, and the floating component moves only along the axial direction of the floating cavity.

[0010] According to one embodiment of the present invention, the extension direction of the floating cavity is not transverse.

[0011] According to one embodiment of the present invention, the floating component further includes a first sealing ring, which is disposed at one end of the floating cavity communicating with the inlet cavity, and the first sealing ring assists the floating component in sealing the outlet cavity.

[0012] According to one embodiment of the present invention, a zero-loss compressed air return oil check valve further includes a deposition assembly, which includes a baffle and a deposition tank. The baffle is disposed in the inlet cavity and divides the inlet cavity into a state where one end is separated and the other end is connected. The deposition tank is disposed in the inlet cavity and is located on one side of the baffle. The deposition tank is the lowest end of the inlet cavity.

[0013] According to one embodiment of the present invention, the housing includes an inner shell and an outer shell, wherein a flow passage component and a floating component are disposed inside the inner shell, and the outer shell is disposed on both sides of the inner shell and closes the sides of the flow passage component and the floating component.

[0014] According to one embodiment of the present invention, a second sealing ring is provided between the inner shell and the outer shell, and the second sealing ring seals the side of the inlet cavity.

[0015] According to one embodiment of the present invention, the outer shell is made of a transparent material.

[0016] According to one embodiment of the present invention, a zero-loss compressed air return check valve further includes an auxiliary component, which includes a sealing member that seals the connection between the floating chamber and the outside.

[0017] According to one embodiment of the present invention, the auxiliary component further includes a reflux check valve, which is disposed in the outlet chamber and prevents fluid from flowing back into the inlet chamber.

[0018] The beneficial effects of this application are as follows: by setting a floating component to control the opening and closing of the flow component, when compressed air is injected into the inlet chamber, the compressed air can be sealed in the inlet chamber and will not leak outward. When the liquid in the inlet chamber accumulates to a certain height, causing the floating component to float, the outlet chamber will then connect with the inlet chamber, allowing the liquid to be discharged. At this time, the liquid in the inlet chamber will act as a liquid seal, preventing compressed air from being discharged from here. This ensures that the return oil check valve will not leak compressed air during use, thereby guaranteeing the production efficiency of compressed air. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a schematic diagram of the zero-loss compressed air return check valve in the embodiment.

[0021] Figure 2 This is another schematic diagram of the zero-loss compressed air return check valve in the embodiment;

[0022] Figure 3 This is a schematic diagram of the working state of the oil return check valve with zero compressed air loss in the embodiment.

[0023] Figure 4 This is another structural schematic diagram of the zero-loss compressed air return check valve in the embodiment.

[0024] In the attached diagram, 1-shell, 2-flow assembly, 3-floating assembly, 4-deposition assembly, 5-auxiliary assembly;

[0025] 11-Inner shell, 12-Outer shell;

[0026] 21-Inlet cavity, 22-Outlet cavity;

[0027] 31-Floating cavity, 32-Floating component, 33-First sealing ring;

[0028] 41-Baffle component, 42-Sedimentation tank;

[0029] 51-Sealing component, 52-Return check valve;

[0030] 111 - Second sealing ring. Detailed Implementation

[0031] The following drawings disclose several embodiments of the present invention. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0032] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0033] Furthermore, in this invention, the use of terms such as "first," "second," etc., is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish items or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0034] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0035] Reference Figures 1-3 , Figure 1 This is a schematic diagram of the zero-loss compressed air return check valve in the embodiment. Figure 2 This is another schematic diagram of the zero-loss compressed air return check valve in the embodiment; Figure 3 This is a schematic diagram of the working structure of the zero-loss compressed air return check valve in this embodiment. The zero-loss compressed air return check valve in this embodiment includes a housing 1, a flow-passing assembly 2, and a floating assembly 3. The flow-passing assembly 2 includes an inlet chamber 21 and an outlet chamber 22. The inlet chamber 21 is located within the housing 1, with one end connected to the outside and the other end located inside the housing 1, supplying fluid input. The outlet chamber 22 is located within the housing 1, with one end connected to the inlet chamber 21 and the other end connected to the outside, supplying fluid discharge. This allows fluid to enter through the inlet chamber 21, and... The flow proceeds along the inlet cavity 21 and the outlet cavity 22, and then exits from the other end of the outlet cavity 22. The floating component 3 includes a floating cavity 31 and a floating element 32. The floating cavity 31 is opened in the housing 1 and is located at the connection between the inlet cavity 21 and the outlet cavity 22. The floating element 32 is disposed in the floating cavity 31. Under normal conditions, the floating element 32 is in a state of sealing the connection end between the outlet cavity 22 and the inlet cavity 21. The density of the floating element 32 is less than the density of the liquid. The liquid is oil or water, etc., so that when the floating element 32 is immersed in the liquid, the floating cavity 31 can float.

[0036] When the liquid in the inlet cavity 21 is insufficient to float the floating component 32, the floating component 32 seals the outlet cavity 22, allowing only gas to flow within the inlet cavity 21. This seal prevents gas leakage. When the liquid in the inlet cavity 21 is sufficient to float the floating component 32, the inlet cavity 21 connects to the outlet cavity 22, allowing the liquid to drain. As the liquid volume in the inlet cavity 21 gradually increases, and the density of the floating component 32 is less than the liquid density, the floating component 32 floats, thus facilitating the flow of liquid into the inlet cavity 21. 21 is connected to the outlet chamber 22, allowing liquid to be discharged outward through the outlet chamber 22. At this time, the liquid acts as a liquid seal for the outlet chamber 22, preventing gas from being discharged outward. After the liquid in the inlet chamber 21 is discharged to the point that the floating part 32 can no longer float, the floating part 32 falls down and seals the outlet chamber 22 again. This ensures that the gas injected into the inlet chamber 21 can never be discharged outward through the outlet chamber 22, thus ensuring that compressed air will not be discharged during normal use of the return oil check valve, thereby ensuring the production efficiency of compressed air.

[0037] Preferably, the opening at the connection end of the outflow cavity 22 and the inflow cavity 21 faces upward.

[0038] Preferably, the floating cavity 31 is cylindrical, and the floating member 32 moves only along the axial direction of the floating cavity 31, and the extension direction of the floating cavity 31 is not transverse. This allows the floating member 32 to close the outlet cavity 22 through the bottom surface of the floating member 32, thereby ensuring the closure efficiency of the outlet cavity 22 by the gravity of the floating member 32. When the floating member 32 is lifted by the buoyancy of the liquid, it can move vertically or inclined upward along the floating cavity 31, thereby opening the outlet cavity 22 and allowing the liquid to be discharged.

[0039] Preferably, the floating member 32 is spherical, so that the force is more even when subjected to pressure from compressed air, and the outlet cavity 22 can be sealed no matter how the floating member 32 rotates.

[0040] Preferably, the floating component 3 further includes a first sealing ring 33, which is disposed at the end of the floating cavity 31 that communicates with the inlet cavity 21. The first sealing ring 33 assists the floating component 32 in sealing the outlet cavity 22. The first sealing ring 33 supports the floating component 32, so that after the floating component 32 falls onto the first sealing ring 33, under the pressure of compressed air, the floating component 32 can make close contact with the first sealing ring 33, thereby further enhancing the sealing efficiency of the outlet cavity 22.

[0041] When an air compressor compresses air, it can easily draw dust and other impurities from the air into the compressor, thus affecting the normal operation of the air compressor. Furthermore, when these impurities fall into the oil return check valve and flow through the narrow orifice of the flow channel, they can easily cause blockages, affecting the normal operation of the oil return check valve.

[0042] Rereference Figure 2 and Figure 3 A zero-loss compressed air return check valve also includes a deposition assembly 4, which includes a baffle 41 and a deposition tank 42. The baffle 41 is disposed in the inlet cavity 21 and divides the inlet cavity 21 into a state where one end is separated and the other end is open, so that when the fluid flows inward along the inlet cavity 21, it can first impact the baffle 41 and cause the impurities in the fluid to fall off along the baffle 41. The deposition tank 42 is disposed in the inlet cavity 21 and is located on one side of the baffle 41. The deposition tank 42 is the lowest end of the inlet cavity 21. After the dust in the fluid falls off along the baffle 41, it can automatically fall into the deposition tank 42 and be deposited at the deposition tank 42.

[0043] Rereference Figure 1 The housing 1 includes an inner housing 11 and an outer housing 12. The inner housing 11 is provided with a flow-through component 2 and a floating component 3. The outer housing 12 is located on both sides of the inner housing 11 and encloses the sides of the flow-through component 2 and the floating component 3. Both sides of the outer housing 12 can be disassembled to remove impurities from the sedimentation tank 42 and to perform maintenance on the return oil check valve.

[0044] Reference Figure 4 , Figure 4 This is another schematic diagram of the zero-loss compressed air return check valve in the embodiment. A second sealing ring 111 is provided between the inner shell 11 and the outer shell 12, and the second sealing ring 111 seals the side of the inlet cavity 21. This prevents fluid leakage in the inlet cavity 21 from affecting the normal operation of the air compressor after the outer shell 12 is installed on both sides of the inner shell 11.

[0045] Preferably, the outer shell 12 is made of a transparent material, so that the working status of the inlet cavity 21 can be observed directly from the outside through the outer shell 12, and the amount of debris deposited in the sedimentation tank 42 can be known, so that maintenance and debris removal can be carried out as soon as possible when the working condition is abnormal.

[0046] Rereference Figures 1-3 A zero-loss compressed air return check valve also includes an auxiliary component 5, which includes a sealing member 51. The sealing member 51 seals the connection between the floating cavity 31 and the outside. The sealing member 51 is installed by means of threads, so that the floating member 32 can be inserted into the floating cavity 31 after the sealing member 51 is unscrewed, and the floating member 32 can be replaced through this point.

[0047] The auxiliary component 5 also includes a backflow check valve 52, which is located in the outlet chamber 22 and prevents fluid from flowing back into the inlet chamber 21, thereby ensuring that the discharged liquid will not flow back and affect the normal operation of the air compressor.

[0048] Rereference Figures 1-3 Fluid is injected into the inlet chamber 21 and impacts the baffle 41, causing the fluid to turn and the impurities to fall into the sedimentation tank 42. After the liquid in the inlet chamber 21 accumulates to a certain height, the floating part 32 floats up, allowing the liquid to be discharged through the outlet chamber 22. After a certain amount of impurities are deposited in the sedimentation tank 42, the outer casing 12 is opened to pour out the impurities, so that the return oil check valve can be used continuously.

[0049] In summary: By setting up a floating component to control the opening and closing of the flow component, when compressed air is injected into the inlet chamber, the compressed air is sealed inside the inlet chamber and will not leak outwards. When the liquid in the inlet chamber accumulates to a certain height, causing the floating component to float, the outlet chamber will then connect with the inlet chamber, allowing the liquid to be discharged. At this time, the liquid in the inlet chamber acts as a liquid seal, preventing compressed air from escaping from this point. This ensures that the return oil check valve will not leak compressed air during use, thereby guaranteeing the production efficiency of compressed air.

[0050] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A compressed air zero-loss oil return check valve characterized by, The utility model relates to a liquid level sensor, which comprises a shell (1), a through-flow assembly (2) and a floating assembly (3). The through-flow assembly (2) comprises an inlet cavity (21) and an outlet cavity (22), the inlet cavity (21) is arranged in the shell (1), one end of the inlet cavity (21) is connected with the outside world, and the other end is located in the shell (1), the inlet cavity (21) is used for liquid input; the outlet cavity (22) is arranged in the shell (1), one end of the outlet cavity (22) is connected with the inlet cavity (21) and the other end is connected with the outside world, the outlet cavity (22) is used for liquid output; and the floating assembly (3) comprises a floating cavity (31) and a floating element (32), the floating cavity (31) is arranged in the shell (1) and located at the connection position of the inlet cavity (21) and the outlet cavity (22), the floating element (32) is arranged in the floating cavity (31), and the density of the floating element (32) is less than the density of the liquid. When the liquid in the inlet cavity (21) cannot make the floating element (32) float up, the floating element (32) seals the outlet cavity (22); when the liquid in the inlet cavity (21) can make the floating element (32) float up, the inlet cavity (21) is connected with the outlet cavity (22), so that the liquid can be discharged. The floating cavity (31) is in a cylindrical shape, and the floating element (32) only moves in the axial direction of the floating cavity (31). The extension direction of the floating cavity (31) is not transverse. The floating element (32) is in a spherical shape. The liquid level sensor further comprises a deposition assembly (4), which comprises a baffle element (41) and a deposition groove (42), the baffle element (41) is arranged in the inlet cavity (21) and divides the inlet cavity (21) into two parts, one end of the inlet cavity (21) is separated, and the other end is connected, the deposition groove (42) is arranged in the inlet cavity (21) and located at one side of the baffle element (41), and the deposition groove (42) is the lowest end of the inlet cavity (21). The shell (1) comprises an inner shell (11) and an outer shell (12), the through-flow assembly (2) and the floating assembly (3) are arranged in the inner shell (11), and the outer shell (12) is arranged on both sides of the inner shell (11) and seals the side surfaces of the through-flow assembly (2) and the floating assembly (3). The floating assembly (3) further comprises a first sealing ring (33), the first sealing ring (33) is arranged at one end of the floating cavity (31) connected with the inlet cavity (21), and the first sealing ring (33) assists the floating element (32) in sealing the outlet cavity (22). A second sealing ring (111) is arranged between the inner shell (11) and the outer shell (12), and the second sealing ring (111) seals the side surface of the inlet cavity (21).

2. The compressed air zero-loss oil return check valve of claim 1, wherein, The outer shell (12) is made of transparent material.

3. The compressed air zero-loss oil return check valve of claim 1, wherein, The liquid level sensor further comprises an auxiliary assembly (5), which comprises a sealing element (51), the sealing element (51) seals the connection position of the floating cavity (31) and the outside world.

4. The compressed air zero-loss oil return check valve of claim 1, wherein, The auxiliary assembly (5) further comprises a backflow one-way valve (52), the backflow one-way valve (52) is arranged in the outlet cavity (22), and the backflow one-way valve (52) prevents the liquid from flowing back to the inlet cavity (21).

5. The compressed air zero-loss oil return check valve of claim 1, wherein, ​ 6. The compressed air zero-loss oil return check valve of claim 5, wherein, ​

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